Difference between revisions of "GEOS-Chem model development priorities"

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On this page we list the current priorities for GEOS-Chem development.  This list was compiled by the user Working Groups at the last [http://acmg.seas.harvard.edu/geos/meetings/2017/index.html International GEOS-Chem Meeting (IGC8)] in May 2017 and was updated in May 2018 following the release of v11-02 which included a number of these priorities. This list will be continuously updated based on code readiness and input from the Working Groups and the Steering Committee.
+
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
  
We also invite you to view our [https://trello.com/board/geos-chem-support-team/4fe36668fc79a1d3540ba80b GEOS-Chem Support Team project management board on Trello.com], which shows the current GCST workflow.
+
On this page we list the current priorities for GEOS-Chem development. This list is continuously updated based on code readiness and input from the [https://geos-chem.seas.harvard.edu/geos-working-groups Working Groups] and the [https://geos-chem.seas.harvard.edu/geos-steering-cmte Steering Committee]. For history of past releases see the [[GEOS-Chem_versions|GEOS-Chem Versions wiki page]].
  
== Priorities assigned to upcoming GEOS-Chem versions ==
+
== Release schedule ==
  
These items have been priorities by the GEOS-Chem Steering Committee, and will be added in the order listed below.
+
Please see the [http://wiki.seas.harvard.edu/geos-chem/images/e/e1/GEOS-Chem_Release_Proposal.pdf GEOS-Chem Release Proposal] outlining the procedure and schedule for releasing GEOS-Chem versions.  
  
=== 12.3.0 ===
+
== Merged and awaiting release ==
  
The items listed below are slated to be included in GEOS-Chem 12.3.0.  This is a feature release which will be validated with a 1-month benchmark simulation.
+
See the links below for items merged and awaiting release.
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
!width="500px"|Feature
+
!width="200px"|Patch version in development
!width="200px"|Submitted by
+
!width="200px"|Major version in development
!width="100px"|Type
+
!width="300px"|Status
+
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Features affecting the full-chemistry simulation:
+
  
 
|-valign="top"
 
|-valign="top"
|[[ISORROPIA_II#Investigating_persistent_noise_observed_in_ISORROPIA_output|Update ISORROPIA from v2.0 to v2.2, in order to remove persistent noise in output]]
+
|align="center"| -
|Seb Eastham (Harvard)
+
|align="center"|'''[[GEOS-Chem 14.0.0]]'''
|Science
+
|
+
*Delivered to GCST (May 2017)
+
 
+
|-valign="top"
+
|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#Discussion_of_LAI_Data_Sources|Update MODIS LAI fields for 2005-2016 using Yuan et al. (2011) ]]
+
|Jenny Fisher (Wollongong) <br>Barron Henderson (US EPA)
+
|Science
+
|
+
*Will require reworking of LAI regridding in GEOS-Chem Classic and pre-processing land map data
+
 
+
|-valign="top"
+
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+
|Sebastian Eastham (MIT)
+
|Science
+
|
+
 
+
|-valign="top"
+
|[[Volcanic_SO2_emissions_from_Aerocom#OMI-based_volcanic_emissions|OMI-based Volcanic emissions 2005-2012]]
+
|Cui Ge (U. Iowa)<br>Jun Wang (U. Iowa)
+
|Science
+
|
+
*Working with developers to obtain alternate data for Oct-Dec 2012.
+
  
 
|}
 
|}
  
=== 12.2.0 ===
+
== Feature integration in progress ==
  
The items listed below are slated to be included in GEOS-Chem 12.2.0.  This is a feature release which will be benchmarked with a 1-month benchmark simulation and a 1-year Rn-Pb-Be benchmark simulation.
+
Features listed in this table are actively being integrated into GEOS-Chem by the [[GEOS-Chem Support Team]]. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.  
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
!width="500px"|Feature
+
!width="200px"|Feature
!width="200px"|Submitted by
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="300px"|Status
+
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
|-
 
!colspan="4" bgcolor="#CCFFFF"|Features NOT affecting the full-chemistry simulation:
 
  
 
|-valign="top"
 
|-valign="top"
|[[Transport_Working_Group#Common_set_of_tracers_in_GEOS-Chem_and_GEOS|Common set of tracers in GEOS-Chem and GEOS]]
+
|TOMAS in GCHP
|Transport WG<br>[[GCST]]
+
|Betty Croft (WashU)
|Benchmarking
+
|Aerosols
 +
|Simple
 
|
 
|
*[[Transport_Working_Group#List_of_tracers_in_GEOS|A set of passive species]] will be added to the GEOS-Chem Rn-Pb-Be benchmark simulation. This will facilitate comparisons between GEOS-Chem "Classic" and/or GCHP vs. the NASA GEOS-DAS system.
+
*[https://github.com/geoschem/GCHP/pull/221 geoschem/GCHP PR #221]
 
+
*[https://github.com/geoschem/geos-chem/pull/1261 geoschem/geos-chem PR #1261]
|}
+
*[https://github.com/geoschem/HEMCO/pull/145 geoschem/HEMCO PR #145]
 
+
=== 12.1.0 ===
+
 
+
The items listed below are slated to be included in GEOS-Chem 12.1.0.  This is a feature release which will be validated with a 1-month benchmark simulation.
+
 
+
{| border=1 cellspacing=0 cellpadding=5
+
|-bgcolor="#CCCCCC"
+
!width="500px"|Feature
+
!width="200px"|Submitted by
+
!width="100px"|Type
+
!width="300px"|Status
+
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Features affecting the full-chemistry simulation:
+
  
 
|-valign="top"
 
|-valign="top"
|[[FlexGrid|FlexGrid: Use HEMCO to read met fields and enable nested simulations over any custom domains]]
+
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option) / KPP 3.0.0
|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
+
|Mike Long (Harvard) <br> Haipeng Lin (Harvard) <br> Bob Yantosca (GCST) <br> Lu Shen (PKU)
|Structural
+
|Chemistry
 +
|Complicated
 
|
 
|
*NOTE: FlexGrid might result in slight differences in met fields w/r/t the current regridding methodThis could have an impact on the full-chemistry simulations.
+
*Lin, H., M.S. Long, R. Sander, R.M. Yantosca, L.A. Estrada, L. Shen, and D.J. Jacob, An adaptive auto-reduction solver for speeding up integration of chemical kinetics in atmospheric chemistry models: implementation and evaluation in the Kinetic Pre-Processor (KPP) version 3.0.0, submitted to JAMES, https://doi.org/10.31223/X5505V, 2022.
 
+
 
|-valign="top"
 
|-valign="top"
|[[Mineral_dust_aerosols#Anthropogenic_PM2.5_dust_source_in_GEOS-Chem|Anthropogenic PM2.5 dust source]]
+
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation via KPP]
|Sajeev Philip (Dalhousie)
+
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)<br>Mike Long (Harvard)
|Science
+
|Specialty simulation
 +
|Medium
 
|
 
|
*'''''Update 29 Jun 2018:''''' [[Mineral_dust_aerosols#Update_29_Jun_2018|Fixed an initialization issue]] that caused much more dust to be emitted than the expected 13.1 Tg/yr.
+
*[https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
*Code updates have been added to GC git repository, but are commented out until we officially release this feature in 12.1.0.
+
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3b: Updates to eliminate differences between single and multi-segmented GEOS-Chem runs]]
+
|RO2 diagnostic
|[[GCST]]<br>Christoph Keller
+
|Melissa Sulprizio (Harvard)
|Bug Fix &<br>Structural
+
|Diagnostics
 +
|Simple
 
|
 
|
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Features NOT affecting the full-chemistry simulation:
 
  
 
|-valign="top"
 
|-valign="top"
|Updated flux diagnostics
+
|[https://github.com/geoschem/geos-chem/issues/770 Output satellite diagnostics as NetCDF]
|Chris Holmes (Florida State)<br>[[GCST]]
+
|Eloise Marais (UCL)  
|Structural/<br>Benchmarking
+
|Diagnostics
 +
|Simple
 
|
 
|
 
+
*See [https://github.com/geoschem/geos-chem/pull/1134 geoschem/geos-chem #1134]
|}
+
 
+
=== 12.0.0 ===
+
 
+
<span style="color:green">'''''VERSION CURRENTLY IN DEVELOPMENT'''''</span>
+
 
+
----
+
----
+
<big><strong>GEOS-Chem v11-02-final</strong> '''will also carry the designation''' <strong>GEOS-Chem 12.0.0</strong>'''.'''  We are migrating to a purely numeric versioning system in order to adhere more closely to software development best practices. For a complete description of the new versioning system, please see [[GEOS-Chem version numbering system|our ''GEOS-Chem version numbering system'' wiki page]].</big>
+
----
+
----
+
 
+
 
+
The following updates and fixes are slated to be added to GEOS-Chem 12.0.0 (aka v11-02-final).  Many of these updates fix issues that were identified during the [[GEOS-Chem v11-02#v11-02 GEOS-Chem v11-02 release candidate|GEOS-Chem v11-02 release candidate]] testing period.
+
 
+
Please see the following link for complete information about the validation of GEOS-Chem 12.0.0:
+
#[[GEOS-Chem_12_benchmark_history#12.0.0|''Approval form for 1-month benchmark simulation 12.0.0'']]
+
#[[GEOS-Chem_12_benchmark_history#12.0.0-Run0|''Results for 1-year benchmark simulation 12.0.0-Run0'']]
+
 
+
{| border=1 cellspacing=0 cellpadding=5
+
|-bgcolor="#CCCCCC"
+
!width="500px"|Feature
+
!width="200px"|Submitted by
+
!width="100px"|Type
+
!width="300px"|Status
+
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Features affecting the full-chemistry (benchmark) simulation:
+
  
 
|-valign="top"
 
|-valign="top"
|[[Trash_burning_emissions#Avoid_double_counting_trash_emissions|Turn off TRASH emissions by default to avoid double counting]]
+
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
|[[GCST]]<br>Eloise Marais (U. Birmingham)
+
|Melissa Sulprizio (Harvard)
|Bug fix
+
|Emissions
|Implemented 27 Jul 2018
+
|Simple
*This update introduces relatively small changes:
+
|
**Mean OH decreased by 0.12%
+
**MCF lifetime increased by 0.23%
+
**CH4 lifetime increased by 0.24%
+
**O3 STE flux increased by 0.042%
+
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem 12#Add_entries_to_HEMCO_Config.rc_for_SOAP_and_pFe_in_CEDS_inventory|Add entries to HEMCO_Config.rc for SOAP and pFe in CEDS inventory]]
+
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx]
|[[GCST]]
+
|Lee Murray (Rochester)
|Bug fix
+
|Emissions
|Implemented 27 Jul 2018
+
|Simple
*This update introduces relatively small changes:
+
|
**Mean OH decreased by 0.15%
+
**MCF lifetime increased by 0.28%
+
**CH4 lifetime increased by 0.29%
+
**O3 STE flux increased by 0.043%
+
  
 
|-valign="top"
 
|-valign="top"
|[[#Bug fix for liquid water content in gckpp_HetRates.F90|Bug fix for liquid water content in gckpp_HetRates.F90]]
+
|[https://github.com/geoschem/geos-chem/discussions/1022 Add new species concentration diagnostic in units of molec/cm3]
|Jiayue Huang (U. Washington)<br>Quanjie Chen (U. Washington)
+
|Haipeng Lin (Harvard)
|Bug fix
+
|Diagnostics
|Implemented 19 Jul 2018
+
|Simple
*This update introduces relatively small changes:
+
|
**Mean OH increased by 1.91%
+
*See [https://github.com/geoschem/geos-chem/pull/1264 geoschem/geos-chem PR #1264]
**MCF lifetime decreased by 2.41%
+
**CH4 lifetime decreased by 2.41%
+
**O3 STE flux decreased by 0.18%
+
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem 12#Bug_fix_for_CH4_boundary_conditions|Bug fix for CH4 boundary conditions]]
+
|Identify and remove memory leaks and similar issues
|Lee Murray (Rochester)
+
|Bob Yantosca (Harvard)
|Bug fix
+
|Structural
|Implemented 19 Jul 2018
+
|Medium
*Results approved by Lee Murray
+
|
*This update introduces small changes:
+
*See [https://github.com/geoschem/geos-chem/pull/1353 github.com/geos-chem PR #1353]
**Mean OH decreased by 0.48%
+
**MCF lifetime increased by 0.82%
+
**O3 STE decreased by: 0.022%
+
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem 12#Fixed typo in call to GAMMA_HOBr_AER|Fixed typo in call to GAMMA_HOBr_AER]]
+
|Update transport tracer simulation for consistency with the tracer gridded component in GEOS
|Xuan Wang<br>[[GCST]]
+
|Melissa Sulprizio (Harvard)
|Bug fix
+
|TransportTracer simulation
|Implemented 18 Jul 2018
+
|Simple
*NOTE: This update produced only very small differences w/r/t internal run v11-02-rc-DICEnewrc
+
|
**Mean OH decreased by -0.058%
+
**MCF lifetime increased by 0.082%
+
**CH4 lifetime increased by 0.084%
+
**O3 STE flux decreased by 0.005%
+
  
 
|-valign="top"
 
|-valign="top"
|Correct issues when specifying [[DICE-Africa anthropogenic emissions inventory|DICE-Africa emissions]]:
+
|Bug fix for GFAS in GCHP
*[[DICE-Africa_anthropogenic_emissions_inventory#Avoid_double-counting_between_DICE-Africa_and_other_inventories|Avoid double-counting between DICE-Africa and other inventories]]
+
|Lizzie Lundgren (Harvard)
*[[DICE-Africa_anthropogenic_emissions_inventory#Use_unique_names_for_DICE-Africa_entries_in_HEMCO_Config.rc|Use unique names for DICE-Africa entries in the <tt>HEMCO_Config.rc</tt> file]]
+
|GCHP
|Eloise Marais (U. Birmingham)<br>[[GCST]]
+
|Simple
|Bug Fix
+
|
|Implemented 16 Jul 2018.
+
*Results approved by Eloise Marais.
+
*NOTE: This update produced only very small differences w/r/t internal run v11-02-rc-arctasship:
+
**Mean OH increased by 0.07%
+
**MCF lifetime decreased by 0.12%
+
**CH4 lifetime decreased by 0.13%
+
**O3 STE flux decreased by -0.0023%
+
  
 
|-valign="top"
 
|-valign="top"
|[[Organics_Working_Group#Add_missing_Criegee_intermediate_reaction|Add missing Criegee intermediate reaction]]
+
|Use pointers to internal state for species arrays in GCHP/GEOS
|Xin Chen (UMN)
+
|Lizzie Lundgren (Harvard)
|Bug fix
+
|GCHP/GEOS
|Implemented 11 Jul 2018, pending validation
+
|Medium
*NOTE: This update produced only very small differences w/r/t internal run v11-02-rc-arctasship:
+
|
**Mean OH decreased by 0.00002%
+
**MCF lifetime was unchanged
+
**CH4 lifetime increased by 0.001%
+
**O3 STE flux increased by 0.0001%
+
  
 
|-valign="top"
 
|-valign="top"
|[[Ship_emissions#Fix_bug_in_ARCTAS_SHIP_SO2_scale_factors|Bug fix for ARCTAS_SHIP in <tt>HEMCO_Config.rc</tt> files]]
+
|[https://github.com/geoschem/geos-chem/issues/1274 Revision to a rate constant for the C2H4 scheme]
|Barron Henderson (EPA)
+
|Kelvin Bates (Harvard)
|Bug Fix
+
|Chemistry
|Implemented 03 Jul 2018
+
|Easy
*NOTE: This update only produced very small differences w/r/t internal run v11-02-rc-gfed2016:
+
|
**Mean OH decreased by 0.0004%
+
**O3 STE flux decreased by 0.0007%
+
**MCF and CH4 lifetimes were unchanged
+
  
 
|-valign="top"
 
|-valign="top"
|[[FlexChem#FlexChem bug fix: do not zero ACTA, EOH, HCOOH|Bug fix in FlexChem: do not zero out ACTA, EOH, HCOOH concentrations]]
+
|[https://github.com/geoschem/geos-chem/issues/1298 Fix product in HOBr/Cl + S(IV) reactions]
|Katie Travis (MIT)
+
|Xuan Wang (CUHK)
|Bug Fix
+
|Chemistry
|Implemented 27 Jun 2018
+
|Easy
*NOTE: This update only produced very small differences w/r/t v11-02-rc:
+
|
**Mean OH decreased by 0.083%
+
**MCF lifefime increased by 0.112%
+
**CH4 lifetime increased by 0.112%
+
**O3 STE flux decreased by 0.011%
+
  
 
|-valign="top"
 
|-valign="top"
|[[GFED4_biomass_burning_emissions#Years_2015_and_2016_have_been_added|Add GFED4.1 data for 2015 and 2016; Use GFED4.1 2016 in benchmarks]]
+
|[https://github.com/geoschem/geos-chem/issues/1235 Add MO2 + NO3 reaction]
|Kate O'Dell (CSU)<br>[[GCST]]
+
|Kelvin Bates (Harvard)
|Science
+
|Chemistry
|Data files downloaded 27 Jun 2018
+
|Easy
*NOTE: This update only produced small differences:
+
|
**Mean OH increased by 0.60%
+
**MCF lifefime decreased by 0.65%
+
**CH4 lifetime decreased by 0.64%
+
**O3 STE flux decreased by 0.0093%
+
  
|-
+
|}
!colspan="4" bgcolor="#CCFFFF"|Features NOT affecting the full-chemistry simulation:
+
  
|-
+
== Delivered and in the queue ==
|[[Mercury#Added_chemistry_and_ocean_from_Horowitz_et_al._2017|Minor fixes for mercury chemistry updates implemented in v11-02f]]
+
|Colin Thackray (Harvard)
+
|Bug fix
+
|Implemented 02 Aug 2018
+
  
|-valign="top"
+
Features listed in this table have been delivered to the GEOS-Chem Support Team and are prioritized to be integrated into GEOS-Chem in the near future.
|[[MERRA-2_implementation_details#Default_timestep_for_MERRA-2_nested_grid_simulations|Restore default timestep for MERRA-2 nested grid simulations to 10/20]]
+
|Ke Li (Harvard)
+
|Bug fix
+
|Implemented 30 Jul 2018
+
  
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
|[[GEOS-Chem 12#Remove_duplicate_C3HI_spectrum_in_FJX_spec.dat_and_FJX_j2j.dat|Remove duplicate C3HI spectrum in FJX_spec.dat and FJX_j2j.dat]]
+
|-bgcolor="#CCCCCC"
|Tomas Sherwen (York)
+
!width="200px"|Feature
|Bug fix
+
!width="200px"|Contributor(s)
|Implemented 27 Jul 2018
+
!width="100px"|Model scope
*A difference test w/r/t the previous commit yielded identical results.
+
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem 12#Fixed typo that prevented PM2.5 from being archived to netCDF output|Fixed typo that prevented PM2.5 from being archived to netCDF output]]
+
|[https://doi.org/10.34894/SZ2KOI AMAP 2015 emissions from GMA2018]
|Jonathan Moch (Harvard)<br>[[GCST]]
+
|Helene Angot(MIT)<br>Ari Feinberg (MIT)<br>Noelle Selin (MIT)
|Bug fix
+
|Hg simulation
|Implemented 24 Jul 2018
+
|Simple
 +
|
 +
* Delivered to GCST (Jul 2022)
  
 
|-valign="top"
 
|-valign="top"
|[[Two-way_coupling_between_global_and_nested_GEOS-Chem_models|Bring two-way nested-grid code option up-to-date]]
+
|[https://pubs.rsc.org/en/content/articlehtml/2022/em/d2em00032f Improvements in modelled Hg0 dry deposition to land]
|Yingying Yan (PKU)<br>Jintai Lin (PKU)
+
|Ari Feinberg (MIT)<br>Noelle Selin (MIT)<br>Thandolwethu Dlamini (MIT)<br>Martin Jiskra (UBasel)<br>Viral Shah (Harvard)
|Structural
+
|Hg simulation
|Implemented 24 Jul 2018
+
|Simple
*This option is invoked by compiling with <tt>EXCHANGE=y</tt>
+
|
*A difference test w/r/t the previous commit yielded identical results.
+
* See [https://github.com/geoschem/geos-chem/pull/1367 geoschem/geos-chem PR #1367]
 +
* The study is already published and could be incorporated into the standard model as a default. Some tweaking to the reduction rate may be required as the model halogen oxidation has also been updated in v13.4.
  
 
|-valign="top"
 
|-valign="top"
|[[Planeflight_diagnostic#Do_not_force_L.3D1_by_default_in_planeflight_mod.F|Do not force L=1 by default in planeflight_mod.F]]
+
|[https://github.com/geoschem/geos-chem/issues/1301 HTAPv3 at 0.1 deg]
|Katie Travis (MIT)<br>[[GCST]]
+
|Dandan Zhang (WashU)
|Bug fix
+
|Emissions
|Implemented 23 Jul 2018
+
|Simple
 +
|
 +
*Delivered to GCST (Jul 2022)
  
|-valign="top"
+
|}
|[[#Add PH2O2 to the default list of prod/loss families in the KPP mechanisms|Add PH2O2 to the default list of prod/loss families in the KPP mechanisms]]
+
|[[GCST]]
+
|Structural
+
|Implemented 19 Jul 2018
+
*This update facilitates saving out oxidant fields from a full-chemistry simulation that can be used to drive an aerosol-only simulation.
+
  
|-valign="top"
+
== Delivered but not yet prioritized ==
|Update to HEMCO v2.1.007, which includes minor updates:
+
#[[Implementation of HEMCO in GEOS-Chem#Stop with error if multiple containers have the same name|Stop with error if multiple containers have the same name]]
+
#[[Implementation of HEMCO in GEOS-Chem#Bug fix for distributing emissions in the vertical dimension|Bug fix for distributing emissions in the vertical dimension]]
+
#[[Implementation of HEMCO in GEOS-Chem#Add extra error checks in HEMCO standalone module|Add extra error checks in HEMCO standalone module]]
+
#[[Implementation of HEMCO in GEOS-Chem#Remove null string character from netCDF unit string|Remove null string character from netCDF unit string]]
+
#[[Implementation_of_HEMCO_in_GEOS-Chem#Bug fix for HEMCO soil NOx error with ifort 17|Bug fix for HEMCO soil NOx error with ifort 17]]
+
|[[GCST]]<br>Christoph Keller<br>Jenny Fisher
+
|Structural &<br>Bug fix
+
|Update history:
+
#Implemented 20 Jul 2018
+
#Implemented 19 Jul 2018
+
#Implemented 18 Jul 2018
+
#Implemented 17 Jul 2018
+
#Implemented 26 Jun 2018
+
  
|-valign="top"
+
Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integration into GEOS-Chem.
|[[GEOS-Chem 12#Bug fix for reference time in netCDF diagnostic files|Bug fix for reference time in netCDF diagnostic files]]
+
 
|[[GCST]]
+
{| border=1 cellspacing=0 cellpadding=5
|Bug fix
+
|-bgcolor="#CCCCCC"
|Implemented 12 Jul 2018
+
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Updates for [[QFED biomass burning emissions]]:
+
|Tagged O3 simulation in GCHP
#[[QFED biomass burning emissions#Update to QFED v2.5r1|Update to QFED v2.5r1]]
+
|Xingpei Yu (PKU)<br>Jourdan He (WashU)
#[[QFED_biomass_burning_emissions#Fix_QFED_files_for_2016.2F10.2F13|Fix QFED v2.4r6 files for 2016/10/13]]
+
|TagO3 simulation
|Christoph Keller (NASA GMAO)
+
|Simple
|Bug fix
+
|
|Update history:
+
*[https://github.com/geoschem/geos-chem/pull/1167 geoschem/geos-chem PR #1167]
#Implemented 19 Jul 2018
+
* Needs to be updated to a more recent version of GCHP
#Implemented 11 Jul 2018
+
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem_12#Fix_issues_in_complexSOA_and_complexSOA_SVPOA_restart_files|Fix issues in complexSOA and complexSOA_SVPOA restart files]]
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
|Eloise Marais (U. Birmingham)
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
|Bug fix
+
|Emissions
|Implemented 05 Jul 2018
+
|Simple
 +
|
 +
*Delivered to GCST (Jul 2022)
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem 12#Avoid double counting CEDS and GEIA NH3 biofuel emissions|Avoid double counting CEDS and GEIA NH3 biofuel emissions]]
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
|Christoph Keller (NASA/GMAO)<br>[[GCST]]
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
|Bug fix
+
|Science
|Implemented 29 Jun 2018
+
|Simple
*NOTE: The default HEMCO behavior is to prioritize CEDS over GEIA NH3 anthro and biofuel emissions.  But to avoid confusion, we will explicitly request this behavior in the <tt>HEMCO_Config.rc</tt> files that ship with the [[GEOS-Chem Unit Tester]].
+
|
 +
*Delivered to GCST (Feb 2021)
 +
* [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
  
 
|-valign="top"
 
|-valign="top"
|[[Coupling_GEOS-Chem_with_RRTMG#Bug_fixes_for_RRTMG_in_v11-02|Bug fixes for v11-02 simulations using the RRTMG radiative transfer model]]
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
|Chris Holmes (U. Florida)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
|Bug Fix
+
|Emissions
|Implemented 26 Jun 2018
+
|Simple
*NOTE: This only affects the RRTMG simulations.  Full-chemistry difference-tests yielded identical results w/r/t v11-02-rc.
+
|
 +
*Data files delivered to GCST (July 2021)
 +
*Data are quite large - need to think about storage, compression
  
 
|-valign="top"
 
|-valign="top"
|Now always declare the netCDF time variable with an unlimited dimension
+
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
|Chris Holmes (U. Florida)
+
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
|Structural
+
|Chemistry
|Implemented 26 Jun 2018
+
|Medium
*NOTE: Full-chemistry difference-tests yielded identical results w/r/t v11-02-rc.
+
|
 +
*Delivered to GCST (Jun 2020)
  
 
|}
 
|}
  
== Priorities not yet assigned to a particular version ==
+
== Ready but not delivered ==
  
The following items have been identified as priorities for GEOS-Chem but have not yet been assigned to a particular GEOS-Chem version.
+
Features listed in this table are ready but have not been delivered to the GEOS-Chem Support Team.
 
+
=== Ready to go in ===
+
 
+
The following updates are now being considered for inclusion into GEOS-Chem.
+
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
!width="500px"|Feature
+
!width="200px"|Feature
!width="200px"|Submitted by
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="300px"|Status
+
!width="300px"|Notes and References
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Emissions and surface fluxes updates
+
  
 
|-valign="top"
 
|-valign="top"
|Carbon bottom up fluxes: anthro, ocean, land
+
|Updating VOC fire emissions and adding lumped furan
|Kevin Bowman (JPL)
+
|Colette Heald (MIT)<br>Jessica Haskins (MIT)
|Science
+
|Chemistry
|Kevin Bowman wrote:
+
|
*This is a a [https://disc.gsfc.nasa.gov/information/news/59e0d52f7cf032426b15c94f/carbon-monitoring-system-cms-carbon-flux-data-sets-released list of data archived from CMS-Flux] that provides bottom up fluxes. These have been generated for the years 2010-2012 and are ready to go now.  The key datasets are:
+
* Carter, T. S., Heald, C. L., Kroll, J. H., Apel, E. C., Blake, D., Coggon, M., Edtbauer, A., Gkatzelis, G., Hornbrook, R. S., Peischl, J., Pfannerstill, E. Y., Piel, F., Reijrink, N. G., Ringsdorf, A., Warneke, C., Williams, J., Wisthaler, A., and Xu, L.: An Improved Representation of Fire Non-Methane Organic Gases (NMOGs) in Models: Emissions to Reactivity, Atmos. Chem. Phys. Discuss. [preprint], https://doi.org/10.5194/acp-2022-438, in review, 2022.
**CMSFluxFire
+
**CMSFluxFossilfuel
+
**CMSFluxNEE
+
**CMSFluxOcean
+
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+
  
 
|-valign="top"
 
|-valign="top"
|Sea salt aerosol alkalinity
+
|Nitrate photolysis
|Qianjie Chen (UW)<br>Becky Alexander (UW)<br>Xuan Wang (Harvard)
+
|Viral Shah (NASA GMAO)
|Science
+
|Chemistry
 
|
 
|
*UW version delivered to GCST (Nov 2017)
+
* Shah, V., D.J. Jacob, R. Dang, L.N. Lamsal, S.A. Strode, S.D. Steenrod, K.F. Boersma, S.D. Eastham, T.M. Fritz, C. Thompson, J. Peischl, I. Bourgeois, I.B. Pollack, B.A. Nault, R.C. Cohen, P. Campuzano-Jost, J.L. Jimenez, S.T. Andersen, L.J. Carpenter, T. Sherwen, and M.J. Evans, Nitrogen oxides in the free troposphere: Implications for tropospheric oxidants and the interpretation of satellite NO2 measurements, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2022-656, 2022.
  
 
|-valign="top"
 
|-valign="top"
|VBS SOA option
+
|Online H2 chemistry
|Rokjin Park (SNU)
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
|Science
+
|Chemistry
 
|
 
|
*Code has been implemented in the ancient v9-01-02 version. 
 
*Bringing this up to the current SOA model (simple SOA, complex SOA) will likely involve significant effort.
 
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
 
  
 
|-valign="top"
 
|-valign="top"
|AMAP/UNEP 2035 for Hg simulation
+
|Alk4 & R4N2 chemistry
|Helene Angot (MIT)
+
|Jared Brewer (Harvard)
|Science
+
|Chemistry
 
|
 
|
*Data is available, but has not been transferred to GCST yet
+
* Brewer, J.F., D.J. Jacob, S.H. Jathar, Y. He, A. Akherati, S. Zhai, D.S. Jo, A. Hodzic, B.A. Nault, P. Campuzano-Jost, J.L. Jimenez, R.J. Park, Y.J. Oak, and H. Liao, A scheme for representing aromatic secondary organic aerosols in chemical transport models: application to source attribution of organic aerosols over South Korea during the KORUS-AQ campaign, submitted to J. Geophys. Res., 2022.
  
 
|-valign="top"
 
|-valign="top"
|Oxidant fields from v10 for 2006-2012
+
|Organic acids (RCOOH)
*3D chemical source for CO2, CO
+
|Katie Travis (NASA)
*OH for tagged CO & CH4
+
|Chemistry
|Dylan Jones (UofT)
+
|Science
+
 
|
 
|
*Will make data files available on ftp site
 
  
 
|-valign="top"
 
|-valign="top"
|Africa nested-grid for GEOS-FP and MERRA-2
+
|Update reactions with new JPL & IUPAC recommendations
|Eloise Marais (U. Birmingham)
+
|Kelvin Bates (Harvard)
|Science
+
|Chemistry
 
|
 
|
*Delivered to GCST (Dec 2017)
+
* Currently running simulations to check magnitude of changes
*Could be implemented with Jiawei Zhuang's FlexGrid
+
  
 
|-valign="top"
 
|-valign="top"
|West Africa nested-grid for GEOS-FP
+
|Improve carbon & nitrogen conservation in reactions
|Mat Evans (York)<br>Eleanor Morris (York)
+
|Kelvin Bates (Harvard)
|Science
+
|Chemistry
 
|
 
|
*Could be implemented with Jiawei Zhuang's FlexGrid
 
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
+
|Blowing snow sea salt in TOMAS
|Becky Alexander (UW)
+
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Arsenic simulation
+
|Geologic emission of ethane and propane
|Shiliang Wu (MT)
+
|Matthew Rowlinson and Mat Evans(York)
|Science
+
|Emissions
 
|
 
|
 
+
* Global source from https://doi.org/10.1038/s41561-018-0073-0 with spatial distribution from https://doi.org/10.5194/essd-11-1-2019
|-
+
!colspan="4" bgcolor="#CCFFFF"|GCHP updates
+
  
 
|-valign="top"
 
|-valign="top"
|None
+
|New version of CEDS at 0.1 deg
 +
|Emma Knowland (NASA)
 +
|Emissions
 
|
 
|
|
 
|
 
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Structural updates
 
  
 
|-valign="top"
 
|-valign="top"
|Benchmark of stratospheric simulation
+
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
|Dylan Jones (U. Toronto)
+
|Shixian Zhai (Harvard)
|Benchmarking
+
|Emissions
 
|
 
|
*1-yr benchmarks for GEOS-Chem v11-01d and later include comparisons with OSIRIS O3
+
* Need permission from Qiang Zhang (Tsinghua U.) to distribute data
*Waiting on OSIRIS NO2 data
+
*Waiting on comparisons with ACE-FTS data
+
  
 
|-valign="top"
 
|-valign="top"
|Add total column O3 to benchmarks
+
|KORUS-AQ emissions for East Asia
|Chris Holmes (FSU)<br>[[GCST]]
+
|Katie Travis (NASA)
|Benchmarking
+
|Emissions
 
|
 
|
*Deferred until GEOS-Chem 12
+
* Need permission to distribute data
*Also note: GCST plans on migrating benchmark plotting code from IDL to Python in v11-03
+
  
|-valign="top"
+
|-valign-"top"
|ObsPack diagnostic as netCDF replacement for planeflight_mod.F
+
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
|Andy Jacobson (NOAA/ESRL)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
|Structural
+
|Hg simulation
 +
|
 +
 
 +
|-valign-"top"
 +
|WRF-GC Hg simulation
 +
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation<br>WRF-GC
 
|
 
|
*Delivered to GCST (May 2017)
 
  
 
|-valign="top"
 
|-valign="top"
|Further structural updates to facilitate interfacing GEOS-Chem with external models (e.g. WRF, CAM, CESM)
+
|Updated HgII gas-partical partitioning
|[[GCST]]
+
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
|Structural
+
|Hg simulation
 
|
 
|
*Ongoing
+
* Should be option, not default
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
+
  
 
|-valign="top"
 
|-valign="top"
|Archival of roughness length for temperature z0T
+
|Dry deposition to F90 (readability)
|[[GCST]]
+
|Chris Holmes (FSU)
|Met processing
+
|Dry deposition
 
|
 
|
*Work has not yet begun
 
 
|}
 
|}
  
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 19:04, 2 August 2018 (UTC)
+
== Almost there (< 6 months) ==
  
=== Almost there (< 6 months) ===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
  
{| border=1 cellspacing=0 cellpadding=5
+
{|border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
!width="500px"|Item
+
!width="200px"|Feature
!width="200px"|Author(s)
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="300px"|Status
+
!width="420px"|Notes and References
  
|-
 
!colspan="4" bgcolor="#CCFFFF"|Transport updates
 
  
 
|-valign="top"
 
|-valign="top"
|[https://www.geosci-model-dev-discuss.net/gmd-2017-125/ GEOS resolution & subgrid convection]
+
|DMS Chemistry
|Karen Yu (Harvard)
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
|Science
+
|Chemistry
 
|
 
|
*To be installed by Bob Yantosca (Harvard), tested by Tailong He (Toronto)
 
*Work to begin after [[GEOS-Chem 12#12.0.0|GC 12.0.0]] release
 
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
 
  
 
|-valign="top"
 
|-valign="top"
|N2O5 hydrolysis updates
+
|PPN+hv, PPN+OH
|Viral Shah (UW)
+
|Robert Ryan (UCL)
|Science
+
|Chemistry
 
|
 
|
*Defer until paper is submitted (Summer 2018)
 
*Code from v10 (SMVGEAR) needs to be translated to v11 (FlexChem); this may take some effort
 
  
 
|-valign="top"
 
|-valign="top"
|H2 chemistry in UCX
+
|MBO
|Chris Holmes (FSU)
+
|Michael Vermeuel (UMN)
|Science
+
|Chemistry
 
|
 
|
*Defer until paper is submitted
 
*Estimate Fall 2018 or sooner
 
  
 
|-valign="top"
 
|-valign="top"
|Updated chlorine chemistry
+
|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]
|Xuan Wang (Harvard)
+
|Seb Eastham (MIT)
 
|Science
 
|Science
 
|
 
|
*Defer until the paper is submitted
 
  
 
|-valign="top"
 
|-valign="top"
|[[Chemistry_Issues#Correcting_ozone_from_the_height_of_the_lowest_model_level_to_the_surface|ND49 timeseries diagnostic for correcting ozone from the height of the lowest model level to 10m]]
+
|Re-binning of off-line sea salt and dust for use in TOMAS
|Katie Travis (MIT)
+
|Betty Croft (Dalhousie)
|Structural
+
|Aerosols
 
|
 
|
*Defer until the paper is submitted
 
  
 
|-valign="top"
 
|-valign="top"
|OH + NO2 rate update
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
|Barron Henderson (EPA)
+
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[Chemistry_Issues#Script_for_evaluating_carbon_balance|Script for checking N, C, etc. balance in chemistry mechanism]]
+
|ML algorithms for bulk aerosols
|Barron Henderson (EPA)
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
|Software
+
|Aerosols
|Barron Henderson wrote:
+
|
*The script for checking the carbon balance exists and works. Ideally, we would move some of the structures into the KPP files to codify them instead of storing them in the script itself. This would be less than 6 months. [https://www.evernote.com/shard/s315/sh/82219b0a-0031-4f3c-a9ca-401964d3b4c5/7af8ad1c743543fa20bf91201ecab2f0 Click HERE for script]
+
  
 
|-valign="top"
 
|-valign="top"
|Aromatics and dicarbonyl chemistry
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
|William Porter (MIT)<br>Tzung-May Fu (PKU)
+
|Shixian Zhai (Harvard)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Document chemical mechanism in KPP file
+
|Updates to Hodzic SOA scheme
|Mat Evans (York)
+
|Jared Brewer (Harvard)
|Structural
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Diurnal variability for NH3
+
|Automated reduction in isoprene scheme
|Henze group
+
|Dan Westervelt (Lamont-Doherty)
|Science
+
|Aerosols
|Daven Henze wrote:
+
*The FORTRAN code for implementing NH3 emissions diurnal variability is fairly straightforward.  However, it involves calculation of some quantities that depend upon met fields in the future, and we’re unsure of how to accomplish this in a robust and elegant manner. 
+
*In particular, we need to know the aerodynamic resistance and surface temperature at every emission time step over the course of a time period X, where X is the time resolution of the NH3 livestock emissions inventory being used.  This is typically monthly, but I could foresee future inventories having higher resolution, so maybe we want to consider this more generically. 
+
*One approach would be to pre-process this quantity at high resolution for all years, as is currently being done e.g. for dust emissions.  Another would be to add code to read in this information from met files online, but this would add some i/o to the model.
+
+
|-valign="top"
+
|Uptake of HNO3 onto coarse-mode sea salt
+
|Prasad Kasibhatla (Duke)
+
|Science
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Photolysis of NITs
+
|Brown carbon chemsitry
|Prasad Kasibhatla (Duke)
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
|Science
+
|Aerosols
 
|
 
|
  
|-
 
!colspan="4" bgcolor="#CCFFFF"|Emissions updates
 
  
 
|-valign="top"
 
|-valign="top"
|Grid-independent lightning NOx emissions (3-hourly)
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
|Lee Murray (Rochester)
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
|Science
+
|Convection
 
|
 
|
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
|Grid-independent dust emissions (hourly)
+
|Update surface methane boundary condition using NOAA flask data
|David Ridley (MIT)
+
|Lee Murray (Rochester)
|Science
+
|Input data
 
|
 
|
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
|Grid-independent biogenic emissions (hourly)
+
|Provide recommended rather than hard-coded scaling factors for online emissions
|Jintai Lin (PKU)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Emissions
 
|
 
|
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
|Grid-independent sea salt emissions (hourly)
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
 
|Jintai Lin (PKU)
 
|Jintai Lin (PKU)
|Science
+
|Emissions
|
+
|Horizontal resolution: 5km, temporal resolution: JJA mean (monthly data will be available at a later stage; please contact us).
*Data has not yet been transferred to GCST
+
  
 
|-valign="top"
 
|-valign="top"
|EPA-derived BC/OA emissions over US (1990-2012)
+
|Updated biomass burning emission factors and species
|David Ridley (MIT)<br>Chi Li (Dalhousie)
+
|Tess Carter (MIT)
|Science
+
|Emissions
 
|
 
|
*Emissions are available but need to be formatted properly.
 
*Could be ready by Fall-Winter 2018, depending on D. Ridley's availability
 
  
 
|-valign="top"
 
|-valign="top"
|[[FINNv1_biomass_burning_emissions|FINN biomass burning emissions for 2014-2016]]
+
|Updated offline sea salt emissions
|Barron Henderson (US EPA)
+
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
|Science
+
|Emissions
 
|
 
|
*Pending receipt of corrected data files
 
  
 
|-valign="top"
 
|-valign="top"
|EPA NEI2011 Version EK
+
|HgII deposition too high in 13.4; Hg0 conc too low; should not use as is
|Zitely Tzompa-Sosa (CSU)<br>Emily Fischer (CSU)
+
|Viral Shah (NASA GMAO)<br>Yanxu Zhang (Nanjing U.)<br>Ari Feinberg (MIT)
|Science
+
|Hg simulation
 
|
 
|
*Estimate Late 2018 or sooner
 
  
 
|-valign="top"
 
|-valign="top"
|GFAS biomass burning emissions
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
|Mat Evans (York)
+
|Sam Silva (MIT)
|Science
+
|Emissions &<br>Science
|Mat Evans wrote:
+
*For the sake of the documentation and the wiki I think we should replicate the standard benchmark year on our system, and then switch on the GFAS emissions instead of the GFED and then have the GFAS emissions distributed by hieight. We can do that and then prepare some plots for the documentation. Estimate summer 2018.
+
 
+
|-valign="top"
+
|[[MASAGE_NH3_inventory|MASAGE inventory in HEMCO as default]]
+
|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
+
|Science
+
 
|
 
|
*MASAGE data is already available.
+
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
*GCST would need assistance from the user community to prepare HEMCO configuration files such that we do not double-count agricultural NH3 from MASAGE and other inventories.  This has been the main delay.
+
*Needs to be updated to a more recent GEOS-Chem version
*F. Paulot has left the GC community.
+
  
 
|-valign="top"
 
|-valign="top"
|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
+
|Gridded EPA (GEPA) version 2 emissions for 2012-2018
|Amos Tai (CUHK)
+
|Bram Maasakkers (SRON)<br>Erin McDuffie (WashU),<br>Melissa Sulprizio (Harvard)
|Science
+
|Emissions<br>CH4 simulation
 
|
 
|
*Waiting on data
 
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|Reduce dimension of analytical inversion
|Fabien Paulot (NOAA/GFDL)
+
|Hannah Nesser (Harvard)
|Science
+
|Adjoint capability
 
|
 
|
*Data files delivered to GCST (Jan 2016)
 
*Needs to be implemented via HEMCO, which is the primary delay
 
  
 
|-valign="top"
 
|-valign="top"
|Injection height for fire emissions
+
|Retire all BPCH diagnostics
|Juliet Zhu (CSU)<br>Emily Fischer (CSU)
+
|Bob Yantosca (Harvard)
|Science
+
|Diagnostics
 
|
 
|
*Code was available in pre v9-02 (HEMCO)
 
*Code may have been ported to v11-02a but this option was not activated
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Surface fluxes and land usage updates
 
  
 
|-valign="top"
 
|-valign="top"
|Land cover module: Harmonized biosphere-atmosphere exchange and implementing CLM or manual land cover change experiments
+
|GEOS-Chem in CESM 2.3
|Jeff Geddes (BU)
+
|Lizzie Lundgren (Harvard)
|Science
+
|Interfacing with ESMs
 
|
 
|
*Has been added into v9-02 (pre-HEMCO)
 
*Bringing this up to v11 will probably need significant effort
 
*BU group/GCST will meet summer 2018 to discuss implementation
 
  
 
|-valign="top"
 
|-valign="top"
|Online O3-LAI coupling in GEOS-Chem
+
|Assess memory leak in GCHP
|Amos Tai (CUHK)
+
|Killian Murphy (York)
|Science
+
|Model performance
 
|
 
|
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Wet deposition updates
 
  
 
|-valign="top"
 
|-valign="top"
|Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc.
+
|Point to internal state for species mixing ratios in GCHP and GEOS
|Sarah Safieddine (MIT)<br>GCST
+
|Lizzie Lundgren (Harvard)<br>Christoph Keller (NASA)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Wet scavenging in mixed-phase clouds
+
|Assess precision in GCHP internal state - use R4 for some?
|Bo Zhang (NIA/NASA Langley)
+
|Lizzie Lundgren (Harvard)
|Science
+
|Structural
 
|
 
|
*Defer until paper is published
 
*Estimate Fall 2018
 
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
 
  
 
|-valign="top"
 
|-valign="top"
|Radon emission update
+
|Hybrid MPI-OpenMP in GCHP
|Bo Zhang (NIA/NASA Langley)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
|Science
+
|Model performance
 
|
 
|
*Defer until paper is published
 
*Estimate Fall 2018
 
  
 
|-valign="top"
 
|-valign="top"
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Convert HEMCO input files to YAML
|Colin Thackray (Harvard)<br>Carey Friedman (formerly MIT)<br>Helen Amos (formerly Harvard)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|New EDGAR sectoral inventory for Hg (1970-2012)
+
|Allow easy disabling of HEMCO emissions for testing
|Amanda Giang (MIT)
+
|Melissa Sulprizio (Harvard)
|Science
+
|
+
 
+
|-valign="top"
+
|Archive GISS met fields from RCP scenarios for community
+
|Lee Murray (Rochester)
+
|Science
+
|
+
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|GCHP updates
+
 
+
|-valign="top"
+
|New version of MAPL
+
|GMAO<br>Lizzie Lundgren (GCST)
+
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Flux ingestion
+
|Improve run directory templating and creation with init_rd.sh and shared directories
|Sebastian Eastham (MIT)
+
|Jourdan He (WashU)
|Science
+
|Run directories
 
|
 
|
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Structural updates
 
  
 
|-valign="top"
 
|-valign="top"
|Clean up SOA diagnostics
+
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
|GCST
+
|GCST?
|Structural
+
|Documentation
 
|
 
|
*GCST has implemented many existing SOA diagnostics in netCDF
 
*GCST would need help from the community to streamline these diagnostics
 
  
|-valign="top"
+
|-valign="top"<
|Calculation consistency throughout code: surface area, HGF (via species database)
+
|Upgrade Fast-JX to Cloud-J
|GCST
+
|Lizzie Lundgren (Harvard)
 
|Structural
 
|Structural
 
|
 
|
 
|-valign="top"
 
|Harmonizing Henry's Law coefficients across wet and dry deposition
 
|[[GCST]]
 
|Science
 
|
 
*Work not started yet. Will need input from the community.
 
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
 
 
|-valign="top"
 
|CESM-GC offline coupling in standard model + benchmark
 
|Rokjin Park (SNU)<br>Daniel Rothenberg (MIT)
 
|Science
 
|
 
*Rokjin Park says code is ready
 
*Waiting on clarification in which version this is implemented in.
 
  
 
|}
 
|}
  
--[[User:Lizzie Lundgren|Lizzie Lundgren]] ([[User talk:Lizzie Lundgren|talk]]) 15:11, 29 June 2018 (UTC)
+
== Over the horizon (6-12 months) ==
  
=== Over the horizon (6-12 months) ===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
!width="500px"|Item
+
!width="200px"|Feature
!width="200px"|Author(s)
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="300px"|Status
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
+
|Snow / Icy Bromine
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
|Science
+
|Chemistry
 
|
 
|
*Delivered to GCST (Nov 2017)
 
*Needs to be added as a HEMCO extension, but converting from ancient v9-01-01 code may take significant effort.
 
  
 
|-valign="top"
 
|-valign="top"
|MEIC emissions over China (2000-2015)
+
|Monoterpene oxidation scheme
|Lu Shen (Harvard)<br>Melissa Sulprizio (Harvard)
+
|Jessica Haskins (MIT)
|Science
+
|Chemistry
 
|
 
|
*Defer until MEIC paper is published
 
  
 
|-valign="top"
 
|-valign="top"
|GISS-GC (ICECAP/GCAP2) in standard model + benchmark
+
|Fire related VOCs including furans
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|Lu Hu (UMT)<br>Lixu Jin (UMT)
|Science
+
|Chemistry
|Lee Murray replied:
+
|
*"I would say 6-12 months to be safe, but the goal is to have it done by the end of summer 2018.  There will actually be very minimal updates to GEOS-Chem; most of the updates are to modify the GISS model to output MERRA2-like data, to facilitate integration with GCHP and future updates to the CTM."
+
  
 
|-valign="top"
 
|-valign="top"
|GISS-GC GCHP
+
|Extension of UCX into the mesosphere
|Lee Murray (Rochester)<br>Pengfei Liu (Harvard)<br>Yang Li (Harvard)
+
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
|Science
+
|Chemistry
 
|
 
|
*Rochester and Harvard groups are coordinating, to avoid duplication of effort
 
  
 
|-valign="top"
 
|-valign="top"
|CESM-GC GCHP
+
|Methane flux ingestion
|Seb Eastham (MIT)
+
|Eloise Marais (UCL)
|Science
+
|Chemistry
 
|
 
|
*Seb Eastham is now the lead developer.
 
*Estimate late 2018 or early 2019; validation will take time
 
  
 
|-valign="top"
 
|-valign="top"
|Additional modifications for [[FlexChem]], including:
+
|Parameterized effective radius
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Haihui Zhu (WashU)
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
|Aerosols
|[[GCST]]
+
|Structural
+
 
|
 
|
*Mike Long, who was the principal proponent behind these updates, has since left the GC community.
 
*We are not sure who will take this over
 
  
 
|-valign="top"
 
|-valign="top"
|Dynamic fire modeling/prediction
+
|Dust non-sphericity impacts on surface chem and optical properties
|Shiliang Wu (MNT)
+
|Inderjeet Singh (WashU)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Interannually varying ocean model BCs for Hg from ocean model
+
|Size-resolved stratospheric aerosol
|Colin Thackray (Harvard)
+
|Seb Eastham (MIT)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|PAH & PFCA simulations
+
|Extend aerosol settling
|Peter Ivatt (York)<br>Mat Evans (York)<br>Noelle Selin (MIT)<br>Colin Thackray (Harvard)
+
|Eloise Marais (UCL)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|CH4 in full chemistry simulation
+
|Stratospheric aerosol APM
|Seb Eastham (Harvard)
+
|Fangqun Yu (SUNY)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Standard future land use maps (PFT, LAI) for RCP/CMIP6 simulations
+
|Plume-in-grid model
|Colette Heald (MIT)<br>Loretta Mickley (Harvard)
+
|Hongwei Sun (Harvard)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive GISS met fields from CMIP6 scenarios for community
+
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
 
|Lee Murray (Rochester)
 
|Lee Murray (Rochester)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to cold-temperature deposition
+
|Seb aircraft emissions beyond recent 2019 update
|Lyatt Jaegle (UW)
+
|Seb Eastham (MIT)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Simple parameterization for CO2-O3 dependence of stomatal resistance
+
|FRP-based fire emsisions for eastern US at 0.2 deg
|Amos Tai (CUHK)
+
|Charlie Fite (FSU)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|NH3 emissions over China
+
|Hg iodine chemistry
|Lin Zhang (PKU)
+
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Using GEOS-Chem within GEOS-5
+
|Hg simulation in GCHP
|Loretta Mickley (Harvard)
+
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Carbon cycle outputs in xCO2, xCH4 as a diagnostic
+
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
|Beata Bukosa (Wollongong)<br>Dylan Jones (UofT)
+
|Yanxu Zhang (Nanjing U.)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Seasonal EMEP emissions back to 1980
+
|Dry deposition diagnostics by land cover
|Mat Evans (York)
+
|Holly Nowell (FSU)
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to NO2 dry deposition
+
|Dry deposition process diagnostics
|Brian Boys (Dalhousie)
+
|Holly Nowell (FSU)
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|APM update and integration with most recent GEOS-Chem version
+
|Isotope simulation for CO and CH4 in GCHP
|Gan Luo (SUNY Albany)
+
|Lee Murray (Rochester)
|Structural
+
|Carbon simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Cosmogenic tracer production
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
|Lee Murray (Rochester)
+
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
|Science
+
|Emissions<br>CH4 simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Explore resolution-consistent dust emissions
+
|Separate mixing and emissions
*Make high-res concentrations or mass fluxes available offline, implement in met field processing
+
|Bob Yantosca (Harvard)
|David Ridley (MIT)<br>GCST<br>Nested Model WG
+
|Structural
|Science
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dust emissions at nested-grid resolutions
+
|Modularization of aerosols code for interface with GOCART in GEOS
|Yuxuan Wang (U. Houston)<br>Jun Wang (U. Iowa)
+
|Christoph Keller (GMAO)
|Science
+
|Structural
 
|
 
|
*Check for overlap with resolution-consistent dust emissions above
 
  
 
|-valign="top"
 
|-valign="top"
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Update SO2 scavenging in convective updrafts for consistency]]
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
|Duncan Fairlie (NASA/LARC)  
+
|Bob Yantosca (Harvard)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Sea salt emission from sea ice
+
|Improve load balancing in GCHP
|Jiayue Huang (UW)
+
|Seb Eastham (MIT)
|Science
+
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem_species_units|Uniformity of units]]
+
|Update to MAPL 3 in GCHP, including replacement of ExtData.rc with YAML file
|[[GCST]]
+
|Lizzie Lundgren (Harvard)
 
|Structural
 
|Structural
|Lizzie Lundgren wrote:
 
*We are not planning on resuming work to unify units in GEOS-Chem anytime soon. Any changes to units in the near future would be for better compatibility with other models, although none are currently planned. However, user consensus on preferred units would still be helpful to move the conversation forward.
 
 
|}
 
 
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 19:42, 24 May 2018 (UTC)
 
 
=== Longer term (12-24 months)===
 
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="500px"|Item
 
!width="200px"|Author(s)
 
!width="100px"|Type
 
!width="300px"|Status
 
 
|-valign="top"
 
|GCHP stretched grid
 
|Jiawei Zhuang (Harvard)
 
|Science
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|1/8 degree nested-grid simulations with GEOS-FP
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
|Nested Model WG
+
|Bob Yantosca (Harvard)
|Science
+
|Model performance
 
|
 
|
*Wait for more interest
 
  
 
|-valign="top"
 
|-valign="top"
|Embedding GEOS-Chem into CESM
+
|Limit allocation of State_Met to what is needed per simulation
|Jean-Francois Lamarque (NCAR)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Structural
 
|
 
|
*NOTE: Seb Eastham is already working on this
 
  
 
|-valign="top"
 
|-valign="top"
|Adjoint of carbon cycle simulation in GCHP
+
|Make frequency of HEMCO restart file configurable
|Kevin Bowman (JPL)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Isoprene chemistry v2 (new Caltech update)
+
|Apply masks/scaling in HEMCO based on input category or flag
|Kelvin Bates (Caltech)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Contemporary land cover: developing historical and updated GEOS-Chem land cover maps based on satellite remote sensing
+
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
|Jeff Geddes (BU)
+
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Farquhar-Ball-Barry model to calculate stomatal resistance
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
|Amos Tai (CUHK)<br>Jeff Geddes (BU)
+
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Impacts of chemistry on ecosystem/carbon cycle
+
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
|Kevin Bowman (JPL)<br>Anthony Bloom (JPL)
+
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
|Science
+
|Transport
 
|
 
|
  
|-valign="top"
+
|}
|Improved lightning emission scheme
+
|Lee Murray (Rochester)
+
|Science
+
|
+
  
|-valign="top"
+
== Longer term (12-24 months)==
|Resolution-independent lightning NOx
+
|Lee Murray (Rochester)
+
|Science
+
|
+
  
|-valign="top"
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.
|Bidirectional NH3 emissions
+
 
|Juliet Zhu (CSU)
+
{| border=1 cellspacing=0 cellpadding=5
|Science
+
|- bgcolor="#cccccc"
|
+
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
|-valign="top"
 
|Country-based weekday/weekend variability for EDGAR 4.2
 
|Lee Murray (Rochester)<br>Christoph Keller (Harvard)
 
|Science
 
|
 
  
 
|-valign="top"
 
|-valign="top"
|Update keytone photolysis
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
|Jared Brewer (CSU)<br>Emily Fischer (CSU)
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
|Science
+
|Emissions
 
|
 
|
 +
*See [https://github.com/geoschem/geos-chem/issues/1288 geoschem/geos-chem #1288]
 +
*[https://github.com/geoschem/geos-chem/issues/1288#issuecomment-1255103962 NOTE: This feature has been tabled for the time being.]
  
 
|-valign="top"
 
|-valign="top"
|Small alkyl nitrates
+
|Updates to Aromatic chemistry
|Jenny Fisher (Wollongong)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|YIBS-GC chemistry-biosphere-fire coupling
+
|Nitrate photolysis
|Loretta Mickley (Harvard)<br>Xu Yue (IAP)
+
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Nitrogen-LAI coupling
+
|In aerosol chemistry Halogens
|Lin Zhang (PKU)<br>Amos Tai (CUHK)
+
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Implementing humidity/VPD dependence of dry deposition
+
|Benchmark box model of GC Chemistry
|Jennifer Murphy (U. Toronto)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|SO2 wet scavenging
+
|Alkyl nitrates Alk7, PHAN
|Duncan Fairlie (NASA Langley)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Heterogeneous sulfate production
+
|Add stratospheric ozone species to full-chemistry simulations
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Lee Murray (Rochester)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|MOSAIC implementation
+
|Perchlorate chemistry
|Sebastian Eastham (Harvard)
+
|Yuk Chun Chan (UWAB)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Particle size climatology
+
|Explicit heterogeneous sulfate chemistry
|Fangqun Yu (SUNY Albany)
+
|Katie Travis (NASA)<br>Becky Alexander (UT)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Sea salt/dust size distribution
+
|ISORROPIA-lite
|David Ridley (MIT)<br>Colette Heald (MIT)
+
|Becky Alexander (UW)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to GTMM
+
|HOx and ozone "emissions" from lightning as option in model to play with
|Rebecca Stern (Harvard)
+
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Tracer transport ocean
+
|Sea salt aerosol from sea ice leads
|Chris Holmes (FSU)
+
|Hannah Horowitz (U. Illinois)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Include Hg in full chemistry simulation
+
|Drought-stress algorithm
|Noelle Selin (MIT)
+
|Wei Li (U. Houston)
|Science
+
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Goddard seasonal weather prediction in GCHP
+
|Biomass burning injection height profiles
|Kevin Bowman (JPL)
+
|Inderjeet Singh (WashU)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Climate index diagnostics (drought, etc.)
+
|OCIM integration
|Chemistry-ecosystems-climate WG
+
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
|Structural
+
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Joint CO/CO2/CH4 simulation
+
|Updating landcover products in GEOS-Chem
|Nicholas Deutscher (U. Wollongong)
+
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
|Science
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Carbon coupling: oceans and terrestrial models
+
|Dry deposition physical improvement
 
|Chris Holmes (FSU)
 
|Chris Holmes (FSU)
|Science
+
|Dry deposition
 
|
 
|
*Ocim-pure physical transport, ECCO-Darwin ocean biogeochemistry
 
  
 
|-valign="top"
 
|-valign="top"
|DMS oxidation scheme updating
+
|Extend the IMI system to other trace gases
|Qianjie Chen (UW)<br>Chemistry WG
+
|Lucas Estrada (Harvard)
|Science
+
|Adjoint capabilities
 
|
 
|
 +
  
 
|-valign="top"
 
|-valign="top"
|Limiting NH3 uptake due to OA
+
|TOMAS WRF-GC in regional Thailand simulation
|Rachel Silvern (Harvard)
+
|Win Trivitayanurak (Chulalongkorn U)
|Science
+
|Aerosols
 
|
 
|
  
 
|}
 
|}
  
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'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''

Revision as of 18:24, 22 September 2022

GEOS-Chem Main Page | GCHP Main Page

On this page we list the current priorities for GEOS-Chem development. This list is continuously updated based on code readiness and input from the Working Groups and the Steering Committee. For history of past releases see the GEOS-Chem Versions wiki page.

Release schedule

Please see the GEOS-Chem Release Proposal outlining the procedure and schedule for releasing GEOS-Chem versions.

Merged and awaiting release

See the links below for items merged and awaiting release.

Patch version in development Major version in development
- GEOS-Chem 14.0.0

Feature integration in progress

Features listed in this table are actively being integrated into GEOS-Chem by the GEOS-Chem Support Team. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.

Feature Contributor(s) Model scope Ease of implementation Notes and References


TOMAS in GCHP Betty Croft (WashU) Aerosols Simple
Adaptive chemical solver (as option) / KPP 3.0.0 Mike Long (Harvard)
Haipeng Lin (Harvard)
Bob Yantosca (GCST)
Lu Shen (PKU)
Chemistry Complicated
  • Lin, H., M.S. Long, R. Sander, R.M. Yantosca, L.A. Estrada, L. Shen, and D.J. Jacob, An adaptive auto-reduction solver for speeding up integration of chemical kinetics in atmospheric chemistry models: implementation and evaluation in the Kinetic Pre-Processor (KPP) version 3.0.0, submitted to JAMES, https://doi.org/10.31223/X5505V, 2022.
Joint CO2-CO-CH4-OCS simulation via KPP Beata Bukosa (NIWA)
Kevin Bowman (JPL)
Mike Long (Harvard)
Specialty simulation Medium
RO2 diagnostic Melissa Sulprizio (Harvard) Diagnostics Simple
Output satellite diagnostics as NetCDF Eloise Marais (UCL) Diagnostics Simple
Provide climatologies for open fire emissions Melissa Sulprizio (Harvard) Emissions Simple
Climatologies for lightning NOx Lee Murray (Rochester) Emissions Simple
Add new species concentration diagnostic in units of molec/cm3 Haipeng Lin (Harvard) Diagnostics Simple
Identify and remove memory leaks and similar issues Bob Yantosca (Harvard) Structural Medium
Update transport tracer simulation for consistency with the tracer gridded component in GEOS Melissa Sulprizio (Harvard) TransportTracer simulation Simple
Bug fix for GFAS in GCHP Lizzie Lundgren (Harvard) GCHP Simple
Use pointers to internal state for species arrays in GCHP/GEOS Lizzie Lundgren (Harvard) GCHP/GEOS Medium
Revision to a rate constant for the C2H4 scheme Kelvin Bates (Harvard) Chemistry Easy
Fix product in HOBr/Cl + S(IV) reactions Xuan Wang (CUHK) Chemistry Easy
Add MO2 + NO3 reaction Kelvin Bates (Harvard) Chemistry Easy

Delivered and in the queue

Features listed in this table have been delivered to the GEOS-Chem Support Team and are prioritized to be integrated into GEOS-Chem in the near future.

Feature Contributor(s) Model scope Ease of implementation Notes and References
AMAP 2015 emissions from GMA2018 Helene Angot(MIT)
Ari Feinberg (MIT)
Noelle Selin (MIT)
Hg simulation Simple
  • Delivered to GCST (Jul 2022)
Improvements in modelled Hg0 dry deposition to land Ari Feinberg (MIT)
Noelle Selin (MIT)
Thandolwethu Dlamini (MIT)
Martin Jiskra (UBasel)
Viral Shah (Harvard)
Hg simulation Simple
  • See geoschem/geos-chem PR #1367
  • The study is already published and could be incorporated into the standard model as a default. Some tweaking to the reduction rate may be required as the model halogen oxidation has also been updated in v13.4.
HTAPv3 at 0.1 deg Dandan Zhang (WashU) Emissions Simple
  • Delivered to GCST (Jul 2022)

Delivered but not yet prioritized

Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integration into GEOS-Chem.

Feature Contributor(s) Model scope Ease of implementation Notes and References
Tagged O3 simulation in GCHP Xingpei Yu (PKU)
Jourdan He (WashU)
TagO3 simulation Simple
Global continental chlorine (pCl and HCl) emissions Bingqing Zhang (Georgia Tech)
Pengfei Liu (Georgia Tech)
Emissions Simple
  • Delivered to GCST (Jul 2022)
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam(CUHK)
Amos Tai (CUHK)
Science Simple
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100 Yang Li (Baylor University)
Loretta Mickley (Harvard)
Emissions Simple
  • Data files delivered to GCST (July 2021)
  • Data are quite large - need to think about storage, compression
Stratospheric HCN chemistry Armin Kleinbohl (JPL)
Debra Weisenstein (Harvard, retired)
Chemistry Medium
  • Delivered to GCST (Jun 2020)

Ready but not delivered

Features listed in this table are ready but have not been delivered to the GEOS-Chem Support Team.

Feature Contributor(s) Model scope Notes and References
Updating VOC fire emissions and adding lumped furan Colette Heald (MIT)
Jessica Haskins (MIT)
Chemistry
  • Carter, T. S., Heald, C. L., Kroll, J. H., Apel, E. C., Blake, D., Coggon, M., Edtbauer, A., Gkatzelis, G., Hornbrook, R. S., Peischl, J., Pfannerstill, E. Y., Piel, F., Reijrink, N. G., Ringsdorf, A., Warneke, C., Williams, J., Wisthaler, A., and Xu, L.: An Improved Representation of Fire Non-Methane Organic Gases (NMOGs) in Models: Emissions to Reactivity, Atmos. Chem. Phys. Discuss. [preprint], https://doi.org/10.5194/acp-2022-438, in review, 2022.
Nitrate photolysis Viral Shah (NASA GMAO) Chemistry
  • Shah, V., D.J. Jacob, R. Dang, L.N. Lamsal, S.A. Strode, S.D. Steenrod, K.F. Boersma, S.D. Eastham, T.M. Fritz, C. Thompson, J. Peischl, I. Bourgeois, I.B. Pollack, B.A. Nault, R.C. Cohen, P. Campuzano-Jost, J.L. Jimenez, S.T. Andersen, L.J. Carpenter, T. Sherwen, and M.J. Evans, Nitrogen oxides in the free troposphere: Implications for tropospheric oxidants and the interpretation of satellite NO2 measurements, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2022-656, 2022.
Online H2 chemistry Maria Paula Pérez-Peña (UNSW)
Jenny Fisher (UOW)
Dylan Millet (UMN)
Chemistry
Alk4 & R4N2 chemistry Jared Brewer (Harvard) Chemistry
  • Brewer, J.F., D.J. Jacob, S.H. Jathar, Y. He, A. Akherati, S. Zhai, D.S. Jo, A. Hodzic, B.A. Nault, P. Campuzano-Jost, J.L. Jimenez, R.J. Park, Y.J. Oak, and H. Liao, A scheme for representing aromatic secondary organic aerosols in chemical transport models: application to source attribution of organic aerosols over South Korea during the KORUS-AQ campaign, submitted to J. Geophys. Res., 2022.
Organic acids (RCOOH) Katie Travis (NASA) Chemistry
Update reactions with new JPL & IUPAC recommendations Kelvin Bates (Harvard) Chemistry
  • Currently running simulations to check magnitude of changes
Improve carbon & nitrogen conservation in reactions Kelvin Bates (Harvard) Chemistry
Blowing snow sea salt in TOMAS Betty Croft (Dalhousie) Aerosols
Geologic emission of ethane and propane Matthew Rowlinson and Mat Evans(York) Emissions
New version of CEDS at 0.1 deg Emma Knowland (NASA) Emissions
MEIC (China regional) for 2000-2017 at 0.5x0.625 deg Shixian Zhai (Harvard) Emissions
  • Need permission from Qiang Zhang (Tsinghua U.) to distribute data
KORUS-AQ emissions for East Asia Katie Travis (NASA) Emissions
  • Need permission to distribute data
Australian anthropogenic Hg emissions Stephen MacFarlane (UOW)
Jenny Fisher (UOW)
Hannah Horowitz (U. Illinois)
Viral Shah (Harvard)
Hg simulation
WRF-GC Hg simulation Xiaotian Xu (Nanjing U.)
Yanxu Zhang (Nanjing U.)
Hg simulation
WRF-GC
Updated HgII gas-partical partitioning Kaiyun Liu (Tsinghua U.)
Qingru Wu (Tsinghua U.)
Shuxiao Wang (Tsinghua U.)
Hg simulation
  • Should be option, not default
Dry deposition to F90 (readability) Chris Holmes (FSU) Dry deposition

Almost there (< 6 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.

Feature Contributor(s) Model scope Notes and References


DMS Chemistry Linia Tashmim (UC Riverside)
William Porter (UC Riverside)
Chemistry
PPN+hv, PPN+OH Robert Ryan (UCL) Chemistry
MBO Michael Vermeuel (UMN) Chemistry
Stratospheric adjustment with RRTMG in GEOS-Chem Seb Eastham (MIT) Science
Re-binning of off-line sea salt and dust for use in TOMAS Betty Croft (Dalhousie) Aerosols
Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90 Betty Croft (Dalhousie) Aerosols
ML algorithms for bulk aerosols Arshad Nair (SUNY Albany)
Fangqun Yu (SUNY Albany)
Aerosols
PM2.5 and PM10 calculations: aerodynamic vs geometric diameters Shixian Zhai (Harvard) Aerosols
Updates to Hodzic SOA scheme Jared Brewer (Harvard) Aerosols
Automated reduction in isoprene scheme Dan Westervelt (Lamont-Doherty) Aerosols
Brown carbon chemsitry Jingqiu Mao (U. Alaska)
Xuan Wang (CUHK)
Aerosols


GEOS resolution and subgrid convection - Part 2 RAS parameter tuning Tailong He (Toronto)
Dylan Jones (Toronto)
Andrea Molod (NASA GMAO)
Convection
Update surface methane boundary condition using NOAA flask data Lee Murray (Rochester) Input data
Provide recommended rather than hard-coded scaling factors for online emissions Melissa Sulprizio (Harvard) Emissions
High-res top-down TROPOMI-derived seasonal mean NOx emissions for China Jintai Lin (PKU) Emissions Horizontal resolution: 5km, temporal resolution: JJA mean (monthly data will be available at a later stage; please contact us).
Updated biomass burning emission factors and species Tess Carter (MIT) Emissions
Updated offline sea salt emissions Hongjian Weng (PKU)
Jintai Lin (PKU)
Emissions
HgII deposition too high in 13.4; Hg0 conc too low; should not use as is Viral Shah (NASA GMAO)
Yanxu Zhang (Nanjing U.)
Ari Feinberg (MIT)
Hg simulation
Canopy Physics Model Sam Silva (MIT) Emissions &
Science
Gridded EPA (GEPA) version 2 emissions for 2012-2018 Bram Maasakkers (SRON)
Erin McDuffie (WashU),
Melissa Sulprizio (Harvard)
Emissions
CH4 simulation
Reduce dimension of analytical inversion Hannah Nesser (Harvard) Adjoint capability
Retire all BPCH diagnostics Bob Yantosca (Harvard) Diagnostics
GEOS-Chem in CESM 2.3 Lizzie Lundgren (Harvard) Interfacing with ESMs
Assess memory leak in GCHP Killian Murphy (York) Model performance
Point to internal state for species mixing ratios in GCHP and GEOS Lizzie Lundgren (Harvard)
Christoph Keller (NASA)
Structural
Assess precision in GCHP internal state - use R4 for some? Lizzie Lundgren (Harvard) Structural
Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT)
Killian Murphy (York)
Model performance
Convert HEMCO input files to YAML Melissa Sulprizio (Harvard) Structural
Allow easy disabling of HEMCO emissions for testing Melissa Sulprizio (Harvard) Structural
Improve run directory templating and creation with init_rd.sh and shared directories Jourdan He (WashU) Run directories
Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc GCST? Documentation
Upgrade Fast-JX to Cloud-J Lizzie Lundgren (Harvard) Structural

Over the horizon (6-12 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.

Feature Contributor(s) Model scope Notes and References
Snow / Icy Bromine Becky Alexander (UW)
William Swanson (U. Alaska)
Shuting Zhai (UW)
Chemistry
Monoterpene oxidation scheme Jessica Haskins (MIT) Chemistry
Fire related VOCs including furans Lu Hu (UMT)
Lixu Jin (UMT)
Chemistry
Extension of UCX into the mesosphere Seb Eastham (MIT)
Eric Fleming (NASA)
Chemistry
Methane flux ingestion Eloise Marais (UCL) Chemistry
Parameterized effective radius Haihui Zhu (WashU) Aerosols
Dust non-sphericity impacts on surface chem and optical properties Inderjeet Singh (WashU) Aerosols
Size-resolved stratospheric aerosol Seb Eastham (MIT) Aerosols
Extend aerosol settling Eloise Marais (UCL) Aerosols
Stratospheric aerosol APM Fangqun Yu (SUNY) Aerosols
Plume-in-grid model Hongwei Sun (Harvard) Chemistry
Updated lightning NOx: Prescribe from ground and geostationary lightning flashes Lee Murray (Rochester) Emissions
Seb aircraft emissions beyond recent 2019 update Seb Eastham (MIT) Emissions
FRP-based fire emsisions for eastern US at 0.2 deg Charlie Fite (FSU) Emissions
Hg iodine chemistry Yiming Fu
Yanxu Zhang (Nanjing U.)
Hg simulation
Hg simulation in GCHP Ari Feinberg (MIT)
Lyssa Freese (MIT)
Hg simulation
Update Hg ocean and soil boundary conditions for consistency with new chemistry Yanxu Zhang (Nanjing U.) Hg simulation
Dry deposition diagnostics by land cover Holly Nowell (FSU) Diagnostics
Dry deposition process diagnostics Holly Nowell (FSU) Diagnostics
Isotope simulation for CO and CH4 in GCHP Lee Murray (Rochester) Carbon simulation
Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3) Melissa Sulprizio (Harvard)
Tia Scarpelli (U. Edinburgh)
Zichong Chen (Harvard)
Emissions
CH4 simulation
Separate mixing and emissions Bob Yantosca (Harvard) Structural
Modularization of aerosols code for interface with GOCART in GEOS Christoph Keller (GMAO) Structural
Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism Bob Yantosca (Harvard) Structural
Improve load balancing in GCHP Seb Eastham (MIT) Model performance
Update to MAPL 3 in GCHP, including replacement of ExtData.rc with YAML file Lizzie Lundgren (Harvard) Structural
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone Bob Yantosca (Harvard) Model performance
Limit allocation of State_Met to what is needed per simulation Melissa Sulprizio (Harvard) Structural
Make frequency of HEMCO restart file configurable Melissa Sulprizio (Harvard) Diagnostics
Apply masks/scaling in HEMCO based on input category or flag Melissa Sulprizio (Harvard) Structural
Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer Bo Zhang (NIA)
Hongyu Liu (NIA / NASA Langley)
Transport
Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer Gan Luo (SUNY Albany)
Fangqun Yu (SUNY-Albany)
Transport
Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons Seb Eastham (MIT)
Clara Orbe (NASA GISS)
Andrew Schuh (CSU)
Transport

Longer term (12-24 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.

Feature Contributor(s) Model scope Notes and References


New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa)
Emissions
Updates to Aromatic chemistry Stephen MacFarlane (UOW)
Jenny Fisher (UOW)
Chemistry
Nitrate photolysis Mat Evans (York)
Thomas Sherwen (York)
Matthew Rowlinson (York)
Chemistry
In aerosol chemistry Halogens Mat Evans (York)
Hansen Cao (CU Boulder)
Chemistry
Benchmark box model of GC Chemistry Katie Travis (NASA) Chemistry
Alkyl nitrates Alk7, PHAN Katie Travis (NASA) Chemistry
Add stratospheric ozone species to full-chemistry simulations Lee Murray (Rochester) Chemistry
Perchlorate chemistry Yuk Chun Chan (UWAB) Chemistry
Explicit heterogeneous sulfate chemistry Katie Travis (NASA)
Becky Alexander (UT)
Chemistry
ISORROPIA-lite Becky Alexander (UW) Aerosols
HOx and ozone "emissions" from lightning as option in model to play with Jingqiu (Alaska)
Lee Murray (Rochester)
Emissions
Sea salt aerosol from sea ice leads Hannah Horowitz (U. Illinois) Emissions
Drought-stress algorithm Wei Li (U. Houston)
Biomass burning injection height profiles Inderjeet Singh (WashU) Emissions
OCIM integration Chris Holmes (FSU)
Lee Murray (Rochester)
Updating landcover products in GEOS-Chem Chris Holmes (FSU)
Jeff Geddes (BU)
Input data
Dry deposition physical improvement Chris Holmes (FSU) Dry deposition
Extend the IMI system to other trace gases Lucas Estrada (Harvard) Adjoint capabilities


TOMAS WRF-GC in regional Thailand simulation Win Trivitayanurak (Chulalongkorn U) Aerosols

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