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.
+
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]].
  
−
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.
+
== Merged and awaiting release ==
  
−
== Priorities assigned to upcoming GEOS-Chem versions ==
+
See the links below for items merged and awaiting release.
  
−
These items have been priorities by the GEOS-Chem Steering Committee, and will be added in the order listed below.
+
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="300px"|Mergeable at any time
 +
!width="200px"|Version in development
  
−
=== 12.3.0 ===
+
|-valign="top"
 +
|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
 +
|align="center"|'''[[GEOS-Chem 14.5.0]]'''
 +
 
 +
|}
  
−
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.
+
== Feature integration in progress ==
 +
 
 +
Features listed in this table are actively being integrated into GEOS-Chem by the [https://geoschem.github.io/support-team.html 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
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Features affecting the full-chemistry simulation:
+
|ALK4 & R4N2 chemistry
 +
|Jared Brewer (UMN)
 +
|Chemistry
 +
|Simple
 +
|
 +
*[https://github.com/geoschem/geos-chem/pull/2352 geos-chem PR #1625]
 +
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., 2023.]
  
 
|-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]]
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
−
|Seb Eastham (Harvard)
+
|Yi Wang (Iowa)<br>Jun Wang (Iowa)
−
|Science
+
|Emissions
 +
|Medium
 
|
 
|
−
*Delivered to GCST (May 2017)
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-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) ]]
+
|Fix pressure handling in HEMCO standalone
−
|Jenny Fisher (Wollongong) <br>Barron Henderson (US EPA)
+
|Melissa Sulprizio (Harvard)
−
|Science
+
|HEMCO
 +
|Simple
 
|
 
|
−
*Will require reworking of LAI regridding in GEOS-Chem Classic and pre-processing land map data
+
*[https://github.com/geoschem/HEMCO/issues/277 HEMCO issue #277]
  
 
|-valign="top"
 
|-valign="top"
−
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+
|Fix obspack - not working in 14.4.0
−
|Sebastian Eastham (MIT)
+
|Bob Yantosca (Harvard)
−
|Science
+
|Diagnostics
 +
|Medium
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/issues/2328 geos-chem issue #2328]
 +
|-valign="top"
 +
|Horizontal flux regridding fix in MAPL
 +
|Tom Clune (GMAO)
 +
|GCHP
 +
|Medium
 +
|
 +
*[https://github.com/geoschem/MAPL/pull/36 MAPL PR #36]
  
 
|-valign="top"
 
|-valign="top"
−
|[[Volcanic_SO2_emissions_from_Aerocom#OMI-based_volcanic_emissions|OMI-based Volcanic emissions 2005-2012]]
+
|Cloud-J 7.7.2 for greater flexibility in external models
−
|Cui Ge (U. Iowa)<br>Jun Wang (U. Iowa)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|Photolysis
 +
|Medium
 
|
 
|
−
*Working with developers to obtain alternate data for Oct-Dec 2012.
+
*[https://github.com/geoschem/Cloud-J/pull/17 Cloud-J PR #17]
 +
*[https://github.com/geoschem/geos-chem/pull/2342 geos-chem PR #2342]
 +
* More Cloud-J PRs in progress
  
−
|}
+
|-valign="top"
−
 
+
|GCHP run directory improvements for mass flux, stretched grid, and GEOS-IT runs
−
=== 12.2.0 ===
+
|Lizzie Lundgren (Harvard)
−
 
+
|GCHP
−
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.
+
|Medium
−
 
+
|
−
{| border=1 cellspacing=0 cellpadding=5
+
*[https://github.com/geoschem/geos-chem/pull/2326 geos-chem PR #2326]
−
|-bgcolor="#CCCCCC"
+
−
!width="500px"|Feature
+
−
!width="200px"|Submitted by
+
−
!width="100px"|Type
+
−
!width="300px"|Status
+
−
 
+
−
|-
+
−
!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]]
+
|Fixes for GEOS-Chem 14.4 in CESM
−
|Transport WG<br>[[GCST]]
+
|Haipeng Lin (Harvard)<br>Lizzie Lundgren (Harvard)
−
|Benchmarking
+
|CESM
 +
|Medium
 
|
 
|
−
*[[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/geos-chem/pull/2348 geos-chem PR #2348]
 +
*[https://github.com/geoschem/geos-chem/pull/2349 geos-chem PR #2349]
 +
* More PRs in progress
  
 
|}
 
|}
  
−
=== 12.1.0 ===
+
== Prioritized and in the queue ==
  
−
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.
+
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
  
 
{| 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="100px"|Delivery status
−
|-
+
!width="300px"|Notes and References
−
!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]]
+
|New version of CEDS at 0.1 deg
−
|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
+
|Dandan Zhang (WashU)
−
|Structural
+
|Emissions
 +
|Simple
 +
|Delivered June 2024
 
|
 
|
−
*NOTE: FlexGrid might result in slight differences in met fields w/r/t the current regridding method. This could have an impact on the full-chemistry simulations.
+
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
  
 
|-valign="top"
 
|-valign="top"
−
|[[Mineral_dust_aerosols#Anthropogenic_PM2.5_dust_source_in_GEOS-Chem|Anthropogenic PM2.5 dust source]]
+
|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
−
|Sajeev Philip (Dalhousie)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GC-Classic
 +
|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.
 
−
*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"
 
−
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3b: Updates to eliminate differences between single and multi-segmented GEOS-Chem runs]]
 
−
|[[GCST]]<br>Christoph Keller
 
−
|Bug Fix &<br>Structural
 
−
|
 
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Features NOT affecting the full-chemistry simulation:
 
−
 
−
|-valign="top"
 
−
|Updated flux diagnostics
 
−
|Chris Holmes (Florida State)<br>[[GCST]]
 
−
|Structural/<br>Benchmarking
 
 
|
 
|
 +
*[https://github.com/geoschem/HEMCO/issues/18 HEMCO issue #18]
  
 
|}
 
|}
  
−
=== 12.0.0 ===
+
== Ready to go in ==
−
 
+
−
<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:
+
Features listed in this table are ready to go in but have either not been delivered or are not yet prioritized for integration into GEOS-Chem.
−
#[[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  
 
{| 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"|Delivery status
 +
!width="300px"|Notes and Refereneces
  
−
|-
 
−
!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]]
+
|Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol
−
|[[GCST]]<br>Eloise Marais (U. Birmingham)
+
|Camilo Serrano (McGill)<br>Andreas Zuend (McGill)
−
|Bug fix
+
|Aerosols
−
|Implemented 27 Jul 2018
+
|Not delivered
−
*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]]
+
|Extend aerosol settling
−
|[[GCST]]
+
|Eloise Marais (UCL)
−
|Bug fix
+
|Aerosols
−
|Implemented 27 Jul 2018
+
|Not delivered
−
*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]]
+
|Comment back in Ca, Mg, and K cations in aerosol thermo (HETP)
−
|Jiayue Huang (U. Washington)<br>Quanjie Chen (U. Washington)
+
|Becky Alexander (UW)
−
|Bug fix
+
|Aerosols
−
|Implemented 19 Jul 2018
+
|Not delivered
−
*This update introduces relatively small changes:
+
|
−
**Mean OH increased by 1.91%
+
−
**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]]
+
|Seasalt aerosol from sea ice leads (2002-2011)
−
|Lee Murray (Rochester)
+
|Hannah Horrowitz (UIUC)
−
|Bug fix
+
|Aerosols
−
|Implemented 19 Jul 2018
+
|Not delivered
−
*Results approved by Lee Murray
+
|
−
*This update introduces small changes:
+
*Offline and online, ready to go in HEMCO (optional in addition to existing seasalt emissions)
−
**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]]
+
|P/L species should not contribute to the error norm
−
|Xuan Wang<br>[[GCST]]
+
|Obin Sturm (USC)
−
|Bug fix
+
|Chemistry
−
|Implemented 18 Jul 2018
+
|Not delivered
−
*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]]:
+
|Additional 6 peroxynitrates (many PANs like species); improve ALK4 & add ALK6
−
*[[DICE-Africa_anthropogenic_emissions_inventory#Avoid_double-counting_between_DICE-Africa_and_other_inventories|Avoid double-counting between DICE-Africa and other inventories]]
+
|Katie Travis (NASA LARC)
−
*[[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]]
+
|Chemistry
−
|Eloise Marais (U. Birmingham)<br>[[GCST]]
+
|Not delivered
−
|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]]
+
|Monoterpene oxidation more species & oxidation products
−
|Xin Chen (UMN)
+
|Kevin Bates (CU Boulder)
−
|Bug fix
+
|Chemistry
−
|Implemented 11 Jul 2018, pending validation
+
|Not delivered
−
*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]]
+
|PPN photolysis
−
|Barron Henderson (EPA)
+
|Eloise Marais (UCL)
−
|Bug Fix
+
|Chemistry
−
|Implemented 03 Jul 2018
+
|Not delivered
−
*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]]
+
|Hlobal organic N dep from various emissions; nitrate aromatics updates
−
|Katie Travis (MIT)
+
|May Fu (SUSTech)
−
|Bug Fix
+
|Chemistry +<br>Deposition
−
|Implemented 27 Jun 2018
+
|Not delivered
−
*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]]
+
|ALK4 from biogenic vs anthro
−
|Kate O'Dell (CSU)<br>[[GCST]]
+
|Jared Brewer (UMN)
−
|Science
+
|Chemistry
−
|Data files downloaded 27 Jun 2018
+
|Not delivered
−
*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%
+
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Features NOT affecting the full-chemistry simulation:
+
|Dry deposition to F90 to improve readability
−
 
+
|Chris Holmes (FSU)
−
|-
+
|Dry Deposition
−
|[[Mercury#Added_chemistry_and_ocean_from_Horowitz_et_al._2017|Minor fixes for mercury chemistry updates implemented in v11-02f]]
+
|Not delivered
−
|Colin Thackray (Harvard)
+
|
−
|Bug fix
+
−
|Implemented 02 Aug 2018
+
  
 
|-valign="top"
 
|-valign="top"
−
|[[MERRA-2_implementation_details#Default_timestep_for_MERRA-2_nested_grid_simulations|Restore default timestep for MERRA-2 nested grid simulations to 10/20]]
+
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
−
|Ke Li (Harvard)
+
|Joey Lam  (CUHK)<br>Amos Tai (CUHK)
−
|Bug fix
+
|Dry deposition
−
|Implemented 30 Jul 2018
+
|Delivered<br>Feb 2021
 +
|
 +
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
  
 
|-valign="top"
 
|-valign="top"
−
|[[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]]
+
|FRP-based fire emissions for eastern US at 0.2 (2019-2020)
−
|Tomas Sherwen (York)
+
|Chris Holmes (FSU)
−
|Bug fix
+
|Emissions
−
|Implemented 27 Jul 2018
+
|Not delivered
−
*A difference test w/r/t the previous commit yielded identical results.
+
|
  
 
|-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]]
+
|China agriculture NH3 emissions
−
|Jonathan Moch (Harvard)<br>[[GCST]]
+
|Amos Tai (CUHK)
−
|Bug fix
+
|Emissions
−
|Implemented 24 Jul 2018
+
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Two-way_coupling_between_global_and_nested_GEOS-Chem_models|Bring two-way nested-grid code option up-to-date]]
+
|T-dependent anthropogenic VOCs
−
|Yingying Yan (PKU)<br>Jintai Lin (PKU)
+
|May Fu (SUSTech)
−
|Structural
+
|Emissions
−
|Implemented 24 Jul 2018
+
|Not delivered
−
*This option is invoked by compiling with <tt>EXCHANGE=y</tt>
+
|
−
*A difference test w/r/t the previous commit yielded identical results.
+
*Option. Requires processing existing anthropogenic VOC emissions to generate offline emissions to read in. Parameterised for China.  
  
 
|-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]]
+
|New source functions for transport tracers beryllium-7 and beryllium-10
−
|Katie Travis (MIT)<br>[[GCST]]
+
|Minjie Zheng (ETH)
−
|Bug fix
+
|Emissions
−
|Implemented 23 Jul 2018
+
|Not delivered
 +
|
 +
*https://zenodo.org/records/8372652
  
 
|-valign="top"
 
|-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]]
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
−
|[[GCST]]
+
|Yang Li (Baylor U)<br>Loretta Mickley (Harvard)
−
|Structural
+
|Emissions
−
|Implemented 19 Jul 2018
+
|Delivered
−
*This update facilitates saving out oxidant fields from a full-chemistry simulation that can be used to drive an aerosol-only simulation.
+
|
 +
*Data involves many files- need to think about temporal frequency
  
 
|-valign="top"
 
|-valign="top"
−
|Update to HEMCO v2.1.007, which includes minor updates:
+
|Australian emissions
−
#[[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]]
+
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
−
#[[Implementation of HEMCO in GEOS-Chem#Bug fix for distributing emissions in the vertical dimension|Bug fix for distributing emissions in the vertical dimension]]
+
|Emissions
−
#[[Implementation of HEMCO in GEOS-Chem#Add extra error checks in HEMCO standalone module|Add extra error checks in HEMCO standalone module]]
+
|Not delivered
−
#[[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"
 
|-valign="top"
−
|[[GEOS-Chem 12#Bug fix for reference time in netCDF diagnostic files|Bug fix for reference time in netCDF diagnostic files]]
+
|Hg geogenic emissions (volcanic, rock weathering)
−
|[[GCST]]
+
|Eric Roy (MIT)
−
|Bug fix
+
|Emissions
−
|Implemented 12 Jul 2018
+
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates for [[QFED biomass burning emissions]]:
+
|Hg biomass burning - FINN2.5 & GFED4
−
#[[QFED biomass burning emissions#Update to QFED v2.5r1|Update to QFED v2.5r1]]
+
|Eric Roy (MIT)
−
#[[QFED_biomass_burning_emissions#Fix_QFED_files_for_2016.2F10.2F13|Fix QFED v2.4r6 files for 2016/10/13]]
+
|Emissions
−
|Christoph Keller (NASA GMAO)
+
|Not delivered
−
|Bug fix
+
|
−
|Update history:
+
−
#Implemented 19 Jul 2018
+
−
#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]]
+
|BCC-GC online
−
|Eloise Marais (U. Birmingham)
+
|Lin Zhang (PKU)
−
|Bug fix
+
|External Model
−
|Implemented 05 Jul 2018
+
|Not delivered
 +
|
  
 
|-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]]
+
|GC-YIBS with online fire emissions
−
|Christoph Keller (NASA/GMAO)<br>[[GCST]]
+
|Xu Yue (NUIST)<br>Hong Liao (NUIST)
−
|Bug fix
+
|External Model
−
|Implemented 29 Jun 2018
+
|Not delivered
−
*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]].
+
|
  
 
|-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]]
+
|GISS-GC offline (GCAP)
−
|Chris Holmes (U. Florida)
+
|Lee Murray (Rochester)
−
|Bug Fix
+
|GCAP
−
|Implemented 26 Jun 2018
+
|Not delivered
−
*NOTE: This only affects the RRTMG simulations.  Full-chemistry difference-tests yielded identical results w/r/t v11-02-rc.
+
|
  
 
|-valign="top"
 
|-valign="top"
−
|Now always declare the netCDF time variable with an unlimited dimension
+
|Archived TCR-2 OH fields for carbon simulations
−
|Chris Holmes (U. Florida)
+
|Kazu Miyazaki (JPL)
−
|Structural
+
|Input data
−
|Implemented 26 Jun 2018
+
|Not delivered
−
*NOTE: Full-chemistry difference-tests yielded identical results w/r/t v11-02-rc.
+
|
 +
*This will be the default OH, but users will have the option of selecting other OH fields
  
 
|}
 
|}
  
−
== Priorities not yet assigned to a particular version ==
+
== Almost there (< 6 months) ==
  
−
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 in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
  
−
=== Ready to go in ===
+
{|border=1 cellspacing=0 cellpadding=5
 +
|- bgcolor="#cccccc"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
−
The following updates are now being considered for inclusion into GEOS-Chem.
 
−
 
−
{| 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"|Emissions and surface fluxes updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|Carbon bottom up fluxes: anthro, ocean, land
+
|Capture all trop and PBL height changes in budget diagnostics
−
|Kevin Bowman (JPL)
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
−
|Science
+
|Diagnostics
−
|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:
+
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
−
**CMSFluxFire
+
−
**CMSFluxFossilfuel
+
−
**CMSFluxNEE
+
−
**CMSFluxOcean
+
−
 
+
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt aerosol alkalinity
+
|Dust non-sphericity impacts on optical properties
−
|Qianjie Chen (UW)<br>Becky Alexander (UW)<br>Xuan Wang (Harvard)
+
|Inderjeet Singh (WashU)
−
|Science
+
|Aerosols
 
|
 
|
−
*UW version delivered to GCST (Nov 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|VBS SOA option
+
|Fixes to stratospheric aerosol settling
−
|Rokjin Park (SNU)
+
|Connor Barker (UCL)<br>Eloise Marais (UCL)
−
|Science
+
|Aerosols
 
|
 
|
−
*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
+
|DMS chemistry in v14
−
|Helene Angot (MIT)
+
|Linia Tashmim (UCR)<br>Will Porter (UCR)
−
|Science
+
|Chemistry
 
|
 
|
−
*Data is available, but has not been transferred to GCST yet
 
  
 
|-valign="top"
 
|-valign="top"
−
|Oxidant fields from v10 for 2006-2012
+
|KPP standalone + 3D Interface
−
*3D chemical source for CO2, CO
+
|Obin Sturm (USC)
−
*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
+
|Load balancing in chemistry solver (GCHP)
−
|Eloise Marais (U. Birmingham)
+
|Zhouran (Jordan) Sun (WashU)
−
|Science
+
|Chemistry +<br>Performance
 
|
 
|
−
*Delivered to GCST (Dec 2017)
 
−
*Could be implemented with Jiawei Zhuang's FlexGrid
 
  
 
|-valign="top"
 
|-valign="top"
−
|West Africa nested-grid for GEOS-FP
+
|UCX chemistry in mesosphere (GCHP/GCClassic)
−
|Mat Evans (York)<br>Eleanor Morris (York)
+
|Helena McDonald (MIT)
−
|Science
+
|Chemistry
 
|
 
|
−
*Could be implemented with Jiawei Zhuang's FlexGrid
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
+
|Updated aromatic oxidation
−
|Becky Alexander (UW)
+
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Arsenic simulation
+
|MCO3 uptake by cloud forming MP; leading to lower PAN
−
|Shiliang Wu (MT)
+
|Laura Yang (Harvard)
−
|Science
+
|Chemistry
 
|
 
|
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|GCHP updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|None
+
|Implement isotope simulation for CH4 in the carbon simulation
 +
|Lee Murray (Rochester)
 +
|Chemistry
 
|
 
|
−
|
+
*Will have to change negative emissions from soil to a first-order loss process
−
|
+
−
 
+
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Structural updates
+
  
 
|-valign="top"
 
|-valign="top"
−
|Benchmark of stratospheric simulation
+
|Active mesospheric chemistry
−
|Dylan Jones (U. Toronto)
+
|Helena McDonald (MIT)<br>Seb Eastham (ICL)
−
|Benchmarking
+
|Chemistry
 
|
 
|
−
*1-yr benchmarks for GEOS-Chem v11-01d and later include comparisons with OSIRIS O3
 
−
*Waiting on OSIRIS NO2 data
 
−
*Waiting on comparisons with ACE-FTS data
 
  
 
|-valign="top"
 
|-valign="top"
−
|Add total column O3 to benchmarks
+
|Documentation for adding additional aerosol species
−
|Chris Holmes (FSU)<br>[[GCST]]
+
|Connor Barker (UCL)
−
|Benchmarking
+
|Documentation
 
|
 
|
−
*Deferred until GEOS-Chem 12
 
−
*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
+
|Column diagnostics
−
|Andy Jacobson (NOAA/ESRL)
+
|Lizzie Lundgren (Harvard)<br>Viral Shah (GMAO)
−
|Structural
+
|Diagnostics
 
|
 
|
−
*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)
+
|TOMAS rate diagnostics -- improve performance
−
|[[GCST]]
+
|Betty Croft (WashU/Dal)
−
|Structural
+
|Diagnostics +<br>Performance
 
|
 
|
−
*Ongoing
 
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
 
  
 
|-valign="top"
 
|-valign="top"
−
|Archival of roughness length for temperature z0T
+
|Archive gamma values from heterogeneous chemistry
−
|[[GCST]]
+
|Bob Yantosca (Harvard)
−
|Met processing
+
|Diagnostics
 
|
 
|
−
*Work has not yet begun
 
−
|}
 
−
 
−
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 19:04, 2 August 2018 (UTC)
 
−
 
−
=== Almost there (< 6 months) ===
 
−
 
−
{| border=1 cellspacing=0 cellpadding=5
 
−
|- bgcolor="#cccccc"
 
−
!width="500px"|Item
 
−
!width="200px"|Author(s)
 
−
!width="100px"|Type
 
−
!width="300px"|Status
 
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Transport updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://www.geosci-model-dev-discuss.net/gmd-2017-125/ GEOS resolution & subgrid convection]
+
|RRTMG Documentation
−
|Karen Yu (Harvard)
+
|GCST
−
|Science
+
|Documentation
 
|
 
|
−
*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
+
|Canopy Physics Model
−
|Viral Shah (UW)
+
|Sam Silva (MIT)
−
|Science
+
|Dry Deposition
 
|
 
|
−
*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
+
|Dry deposition diagnostics by land cover
−
|Chris Holmes (FSU)
+
|Holly Nowell (FSU)<br>Chris Holmes (FSU)
−
|Science
+
|Dry Deposition
 
|
 
|
−
*Defer until paper is submitted
 
−
*Estimate Fall 2018 or sooner
 
  
 
|-valign="top"
 
|-valign="top"
−
|Updated chlorine chemistry
+
|Dry deposition process diagnostics
−
|Xuan Wang (Harvard)
+
|Holly Nowell (FSU)<br>Chris Holmes (FSU)
−
|Science
+
|Dry Deposition
 
|
 
|
−
*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]]
+
|Biomass burning for TOMAS
−
|Katie Travis (MIT)
+
|Nicole June (CSU)
−
|Structural
+
|Emissions +<br>Microphysics
 
|
 
|
−
*Defer until the paper is submitted
 
  
 
|-valign="top"
 
|-valign="top"
−
|OH + NO2 rate update
+
|Historic biomass burning (1750-2010)
−
|Barron Henderson (EPA)
+
|Pengfei (Gtech)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Chemistry_Issues#Script_for_evaluating_carbon_balance|Script for checking N, C, etc. balance in chemistry mechanism]]
+
|Rice methane emissions
−
|Barron Henderson (EPA)
+
|Zichong Cheng (Harvard)
−
|Software
+
|Emissions+<br>Carbon simulation
−
|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
+
|Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.)
−
|William Porter (MIT)<br>Tzung-May Fu (PKU)
+
|Katie Travis (NASA)<br>Kelvin Bates (CU Boulder)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Document chemical mechanism in KPP file
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
−
|Mat Evans (York)
+
|Tia Scarpelli (Carbon Mapper)<br>Melissa Sulprizio (Harvard)
−
|Structural
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Diurnal variability for NH3
+
|New prior CO2 biospheric fluxes from CMS-FLUX and GMAO
−
|Henze group
+
|Kevin Bowman (JPL)<br>Lesley Ott (GMAO)
−
|Science
+
|Emissions
−
|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
+
 
|
 
|
 +
*GMAO can provide high-resolution  fluxes (as high as 12 km)
  
 
|-valign="top"
 
|-valign="top"
−
|Photolysis of NITs
+
|Snowpack Br2 emission
−
|Prasad Kasibhatla (Duke)
+
|Chris Holmes (FSU)
−
|Science
+
|Emissions
 
|
 
|
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Emissions updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|Grid-independent lightning NOx emissions (3-hourly)
+
|EDGAR v8.1_toxHg emissions for 1970-2022
−
|Lee Murray (Rochester)
+
|Eric Roy (MIT)
−
|Science
+
|Emissions
 
|
 
|
−
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
−
|Grid-independent dust emissions (hourly)
+
|Improve pressure handling in GCHP advection
−
|David Ridley (MIT)
+
|Yuanjian Zhang (WashU)<br>Seb Eastham (ICL)
−
|Science
+
|GCHP
 
|
 
|
−
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
−
|Grid-independent biogenic emissions (hourly)
+
|Add error trap for duplicate scale factors in HEMCO
−
|Jintai Lin (PKU)
+
|Bob Yantosca (Harvard)
−
|Science
+
|HEMCO
 
|
 
|
−
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
−
|Grid-independent sea salt emissions (hourly)
+
|Integration testing: Add stretched grid
−
|Jintai Lin (PKU)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|Quality Assurance
 
|
 
|
−
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
−
|EPA-derived BC/OA emissions over US (1990-2012)
+
|Integration testing: Add GCAP2
−
|David Ridley (MIT)<br>Chi Li (Dalhousie)
+
|GCST
−
|Science
+
|Quality Assurance
 
|
 
|
−
*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]]
+
|Integration testing: Add GCHP mass flux run
−
|Barron Henderson (US EPA)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|Quality Assurance
 
|
 
|
−
*Pending receipt of corrected data files
 
  
 
|-valign="top"
 
|-valign="top"
−
|EPA NEI2011 Version EK
+
|Integration testing: Add run with all diagnostics turned on
−
|Zitely Tzompa-Sosa (CSU)<br>Emily Fischer (CSU)
+
|GCST
−
|Science
+
|Quality Assurance
 
|
 
|
−
*Estimate Late 2018 or sooner
 
  
 
|-valign="top"
 
|-valign="top"
−
|GFAS biomass burning emissions
+
|Integration testing: Reinstate TOMAS40
−
|Mat Evans (York)
+
|Betty Croft (Dalhousie/WashU)
−
|Science
+
|Quality Assurance
−
|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"
 
|-valign="top"
−
|[[MASAGE_NH3_inventory|MASAGE inventory in HEMCO as default]]
+
|Strat-adjusted RF in GCC and GCHP
−
|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
+
|Connor Barker (UCL)<br>Eloise Marais (UCL)
−
|Science
+
|Radiation
 
|
 
|
−
*MASAGE data is already available.
 
−
*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.
 
−
*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]]
+
|Continue cleanup of C-preprocessor switches
−
|Amos Tai (CUHK)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|Structural
 
|
 
|
−
*Waiting on data
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|Updates to Luo deposition scheme
−
|Fabien Paulot (NOAA/GFDL)
+
|Gan Luo (Albany)
−
|Science
+
|Wet Deposition
 
|
 
|
−
*Data files delivered to GCST (Jan 2016)
+
*New version, keep as switch (not default)
−
*Needs to be implemented via HEMCO, which is the primary delay
+
  
 
|-valign="top"
 
|-valign="top"
−
|Injection height for fire emissions
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
−
|Juliet Zhu (CSU)<br>Emily Fischer (CSU)
+
|Gan Luo (Albany)<br>Fangqun Yu (Albany)
−
|Science
+
|Wet Deposition
 
|
 
|
−
*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
+
== 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
 +
|- bgcolor="#cccccc"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Land cover module: Harmonized biosphere-atmosphere exchange and implementing CLM or manual land cover change experiments
+
|ML algorithms for bulk aerosol
−
|Jeff Geddes (BU)
+
|Arshad Nair (Albany)<br>Fangqun Yu (Albany)
−
|Science
+
|Aerosols
 
|
 
|
−
*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
+
|Heterogeneous sulfate chemistry
−
|Amos Tai (CUHK)
+
|Katie Travis (NASA)
−
|Science
+
|Chemistry
 
|
 
|
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Wet deposition updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc.
+
|H2 as an active species
−
|Sarah Safieddine (MIT)<br>GCST
+
|Seb Eastham (ICL)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Wet scavenging in mixed-phase clouds
+
|HCN, acetonitrile as fire tracers
−
|Bo Zhang (NIA/NASA Langley)
+
|Kevin Bates (CU Boulder)
−
|Science
+
|Chemistry
 
|
 
|
−
*Defer until paper is published
 
−
*Estimate Fall 2018
 
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|Radon emission update
+
|Implement ethane in carbon simulation
−
|Bo Zhang (NIA/NASA Langley)
+
|Yuzhong Zhang (Westlake)
−
|Science
+
|Chemistry
 
|
 
|
−
*Defer until paper is published
 
−
*Estimate Fall 2018
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|VCPs emissions
−
|Colin Thackray (Harvard)<br>Carey Friedman (formerly MIT)<br>Helen Amos (formerly Harvard)
+
|Kelvin Bates (CU Boulder)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|New EDGAR sectoral inventory for Hg (1970-2012)
+
|Mesospheric source of CO
−
|Amanda Giang (MIT)
+
|Dylan Jones (UofT)<br>Pam Wales (NASA GSFC)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Archive GISS met fields from RCP scenarios for community
+
|Drought-stress algorithm
−
|Lee Murray (Rochester)
+
|Wei Li (Houston)
−
|Science
+
|Emissions
 
|
 
|
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|GCHP updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|New version of MAPL
+
|Physically-based resolution correction for BVOC emissions using MEGAN
−
|GMAO<br>Lizzie Lundgren (GCST)
+
|May Fu (SUSTech)
−
|Structural
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Flux ingestion
+
|Canadian forest fire prediction system (Canada government forecast model)
−
|Sebastian Eastham (MIT)
+
|Robin Stevens (Montreal)
−
|Science
+
|Emissions
 
|
 
|
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Structural updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|Clean up SOA diagnostics
+
|Furan emission factors (updates existing emissions)
−
|GCST
+
|Lu Hu (Montana)<br>Lixu Jin (Montana)
−
|Structural
+
|Emissions
 
|
 
|
−
*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)
+
|Cooking emissions (not biofuel)
−
|GCST
+
|Kelvin Bates (CU Boulder)
−
|Structural
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Harmonizing Henry's Law coefficients across wet and dry deposition
+
|State-specific annual emissions scaling factors (US) (1990-2021)
−
|[[GCST]]
+
|Ishir Dutta (MIT)
−
|Science
+
|Emissions
 
|
 
|
−
*Work not started yet. Will need input from the community.
 
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
 
  
 
|-valign="top"
 
|-valign="top"
−
|CESM-GC offline coupling in standard model + benchmark
+
|GISS-GC online
−
|Rokjin Park (SNU)<br>Daniel Rothenberg (MIT)
+
|Lee Murray (Rochester)
−
|Science
+
|External model
 
|
 
|
−
*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) ===
 
−
 
−
{| border=1 cellspacing=0 cellpadding=5
 
−
|- bgcolor="#cccccc"
 
−
!width="500px"|Item
 
−
!width="200px"|Author(s)
 
−
!width="100px"|Type
 
−
!width="300px"|Status
 
  
 
|-valign="top"
 
|-valign="top"
−
|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
+
|Hybrid MPI-OpenMP in GCHP
−
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)<br>Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
−
*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)
+
|MAPL3: Update to MAPL3 in GCHP, including replacement of ExtData.rc and HISTORY.rc with YAML files
−
|Lu Shen (Harvard)<br>Melissa Sulprizio (Harvard)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
−
*Defer until MEIC paper is published
 
  
 
|-valign="top"
 
|-valign="top"
−
|GISS-GC (ICECAP/GCAP2) in standard model + benchmark
+
|MAPL3: Comply with MAPL "positive" standard in GCHP diagnostic files
−
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
−
|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
+
|MAPL3: Wildcards in GCHP History
−
|Lee Murray (Rochester)<br>Pengfei Liu (Harvard)<br>Yang Li (Harvard)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
−
*Rochester and Harvard groups are coordinating, to avoid duplication of effort
 
  
 
|-valign="top"
 
|-valign="top"
−
|CESM-GC GCHP
+
|MAPL3: Output emissions with positive up convention in GCHP
−
|Seb Eastham (MIT)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
−
*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:
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
−
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Bob Yantosca (Harvard)
−
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
|Performance
−
|[[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
+
|Photophysical oxidation of aldehydes
−
|Shiliang Wu (MNT)
+
|Paulo Sebastianelli (Wollongong)<br>Jenny Fisher (Wollongong)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Interannually varying ocean model BCs for Hg from ocean model
+
|DMS updates
−
|Colin Thackray (Harvard)
+
|Will Porter (UCR)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|PAH & PFCA simulations
+
|Furans emission and chemistry
−
|Peter Ivatt (York)<br>Mat Evans (York)<br>Noelle Selin (MIT)<br>Colin Thackray (Harvard)
+
|Lixu Jin (Montana)<br>Lu Hu (Montana)
−
|Science
+
|Chemistry + <br>Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|CH4 in full chemistry simulation
+
|Cl2 prodcution from Fe aerosol
−
|Seb Eastham (Harvard)
+
|Qianjie Chen (HK Poly)<br>Becky Alexander (UW)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Standard future land use maps (PFT, LAI) for RCP/CMIP6 simulations
+
|VCP, cooking: tracers species added i.e., D5, ethanol affecting PAN
−
|Colette Heald (MIT)<br>Loretta Mickley (Harvard)
+
|Kevin Bates (CU Boulder)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Archive GISS met fields from CMIP6 scenarios for community
+
|bidirectional land-atmosphere exchange for Hg
−
|Lee Murray (Rochester)
+
|Yuying Cui (MIT/Tsinghua)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to cold-temperature deposition
+
|OH covariances for inversions
−
|Lyatt Jaegle (UW)
+
|Elise Penn (Harvard)
−
|Science
+
|Inversions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Simple parameterization for CO2-O3 dependence of stomatal resistance
+
|CESM2-GC offline
−
|Amos Tai (CUHK)
+
|Seb Eastham (ICL)<br>Lee Murray (Rochester)
−
|Science
+
|Met fields
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|NH3 emissions over China
+
|Re-binning of off-line sea salt and dust for TOMAS
−
|Lin Zhang (PKU)
+
|Betty Croft (Dalhousie)
−
|Science
+
|Microphysics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Using GEOS-Chem within GEOS-5
+
|TOMAS nucleation updates
−
|Loretta Mickley (Harvard)
+
|Sam O'Donnell (CSU)
−
|Science
+
|Microphysics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Carbon cycle outputs in xCO2, xCH4 as a diagnostic
+
|Stratospheric aerosol APM
−
|Beata Bukosa (Wollongong)<br>Dylan Jones (UofT)
+
|Fangqun Yu (SUNY Albany)
−
|Science
+
|Microphysics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Seasonal EMEP emissions back to 1980
+
|Transition from MERRA-2 to GEOS-IT for benchmarking
−
|Mat Evans (York)
+
|Yuanjian Zhang (WashU)
−
|Science
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to NO2 dry deposition
+
|Automate integration testing on AWS
−
|Brian Boys (Dalhousie)
+
|Yidan Tang (WashU)
−
|Science
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|APM update and integration with most recent GEOS-Chem version
+
|Integration testing: Add across end of year run
−
|Gan Luo (SUNY Albany)
+
|GCST
−
|Structural
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Cosmogenic tracer production
+
|Integration testing: Add GEOS-IT
−
|Lee Murray (Rochester)
+
|Yuanjian Zhang (WashU)
−
|Science
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Explore resolution-consistent dust emissions
+
|Separate mixing, emissions, and drydep
−
*Make high-res concentrations or mass fluxes available offline, implement in met field processing
+
|Yuanjian Zhang (WashU)
−
|David Ridley (MIT)<br>GCST<br>Nested Model WG
+
|Structural
−
|Science
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Dust emissions at nested-grid resolutions
+
|Intel IFX compiler
−
|Yuxuan Wang (U. Houston)<br>Jun Wang (U. Iowa)
+
|Bob Yantosca (Harvard)
−
|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]]
+
|CMake option to only build libraries but not executable, also passing C-preprocessor statements to turn off code
−
|Duncan Fairlie (NASA/LARC)  
+
|Bob Yantosca (Harvard)<br>Lee Murray (Rochester)
−
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt emission from sea ice
+
|Remove differences introduced when breaking up GC-Classic runs in time; and flexible precision in HEMCO
−
|Jiayue Huang (UW)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem_species_units|Uniformity of units]]
+
|Limit allocation of State_Met to what is needed per simulation
−
|[[GCST]]
+
|Melissa Sulprizio (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)==
  
−
=== 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.
  
 
{| 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"
−
|GCHP stretched grid
+
|Modal aerosol model (MAM7) in GCHP
−
|Jiawei Zhuang (Harvard)
+
|Shreya Sharma (MIT)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|1/8 degree nested-grid simulations with GEOS-FP
+
|Online OCIM ocean biogeochemistry
−
|Nested Model WG
+
|Lee Murray (Rochester)<br>Hannah Horowitz (UIUC)<br>Chris Holmes (FSU)
−
|Science
+
|Chemistry
 
|
 
|
−
*Wait for more interest
 
  
 
|-valign="top"
 
|-valign="top"
−
|Embedding GEOS-Chem into CESM
+
|Perchlorate chemistry
−
|Jean-Francois Lamarque (NCAR)
+
|Yuk Chun Chan (UW)
−
|Science
+
|Chemistry
 
|
 
|
−
*NOTE: Seb Eastham is already working on this
 
  
 
|-valign="top"
 
|-valign="top"
−
|Adjoint of carbon cycle simulation in GCHP
+
|Non-stomatal dry deposition (2-layer canopy model)
−
|Kevin Bowman (JPL)
+
|Michael Vermeuel (Purdue)
−
|Science
+
|Dry Deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Isoprene chemistry v2 (new Caltech update)
+
|Continental chloride particle emissions (salty dust, road salt)
−
|Kelvin Bates (Caltech)
+
|Jessica Haskins (Utah)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Contemporary land cover: developing historical and updated GEOS-Chem land cover maps based on satellite remote sensing
+
|Multivolatility emission inventory to address gaps in EDGAR/HTAP etc.
−
|Jeff Geddes (BU)
+
|Ruochong (Tshingua)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Farquhar-Ball-Barry model to calculate stomatal resistance
+
|Lightning NOx production rates
−
|Amos Tai (CUHK)<br>Jeff Geddes (BU)
+
|Bex Horner (UCL)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Impacts of chemistry on ecosystem/carbon cycle
+
|HFO and CF3CHO
−
|Kevin Bowman (JPL)<br>Anthony Bloom (JPL)
+
|Beth Killen (Wollongong)<br>Jenny Fisher (Wollongong)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Improved lightning emission scheme
+
|Glyoxal updates from isoprene
−
|Lee Murray (Rochester)
+
|Tzung-May Fu (SUSTech)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Resolution-independent lightning NOx
+
|Iodine chemistry
−
|Lee Murray (Rochester)
+
|Becky Alexander (UW)<br>Xuan Wang (CUHK)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Bidirectional NH3 emissions
+
|Chlorine/Perchlorate
−
|Juliet Zhu (CSU)
+
|Yukchun Chan (UW)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Country-based weekday/weekend variability for EDGAR 4.2
+
|Playa dust chemistry to improve Cl over land
−
|Lee Murray (Rochester)<br>Christoph Keller (Harvard)
+
|Jessica Haskins (Utah)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Update keytone photolysis
+
|GFED5 biomass burning
−
|Jared Brewer (CSU)<br>Emily Fischer (CSU)
+
|Eric Roy (MIT)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Small alkyl nitrates
+
|Ocean Hg surface concentrations for 2010-2020 from multi-model ensemble
−
|Jenny Fisher (Wollongong)
+
|Eric Roy (MIT)<br>Ari Feinberg (IQF-CSIC)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|YIBS-GC chemistry-biosphere-fire coupling
+
|Soil Hg emissions 2010-2020
−
|Loretta Mickley (Harvard)<br>Xu Yue (IAP)
+
|Eric Roy (MIT)<br>Ari Feinberg (IQF-CSIC)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Nitrogen-LAI coupling
+
|Air-sea exchange parameterization
−
|Lin Zhang (PKU)<br>Amos Tai (CUHK)
+
|Eric Roy (MIT)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Implementing humidity/VPD dependence of dry deposition
+
|Soil Hg emissions parameterization
−
|Jennifer Murphy (U. Toronto)
+
|Ari Feinberg (IQF-CSIC)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|SO2 wet scavenging
+
|Sea salt uptake of GOM
−
|Duncan Fairlie (NASA Langley)
+
|Eric Roy (MIT)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Heterogeneous sulfate production
+
|Photoreduction rate constant
−
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Eric Roy (MIT)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|MOSAIC implementation
+
|new observations (2010-2020) in standardized Hg benchmark for intercomparison
−
|Sebastian Eastham (Harvard)
+
|Eric Roy (MIT)/Ari Feinberg (IQF-CSIC)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Particle size climatology
+
|Hg simulation in GCHP
−
|Fangqun Yu (SUNY Albany)
+
|Eric Roy (MIT)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt/dust size distribution
+
|OCIM - biogeochemical model - (C/P/N/Fe - no Hg yet) (MATLAB)
−
|David Ridley (MIT)<br>Colette Heald (MIT)
+
|Hannah Horowitz (UIUC)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to GTMM
+
|possibly updating Hg oxidation chemistry based on Utah field campaigns
−
|Rebecca Stern (Harvard)
+
|Jessica Haskins (Utah)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Tracer transport ocean
+
|New halogen/aerosol fields (surface area / AOD) from 10-year 14.4 benchmark simulation available online
−
|Chris Holmes (FSU)
+
|Viral Shah (NASA GMAO); Eric Roy (MIT); Ari Feinberg (IQF-CSIC)
−
|Science
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Include Hg in full chemistry simulation
+
|Extend IMI to CO2 (ICI)
−
|Noelle Selin (MIT)
+
|Hannah Nesser (JPL)  
−
|Science
+
|Inversions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Goddard seasonal weather prediction in GCHP
+
|Global emission inventory of metals
−
|Kevin Bowman (JPL)
+
|Tzung-May Fu (SUSTech); He Zhong Tian (Peking Normal U)
−
|Science
+
|Metals simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Climate index diagnostics (drought, etc.)
+
|Investigate and improve performance of aerosol chemistry
−
|Chemistry-ecosystems-climate WG
+
|Bob Yantosca (Harvard)
−
|Structural
+
|Performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Joint CO/CO2/CH4 simulation
+
|PAH - update from version 11
−
|Nicholas Deutscher (U. Wollongong)
+
|Lexia Cicone (MIT)
−
|Science
+
|POPs simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Carbon coupling: oceans and terrestrial models
+
|Species database more accessible; doc updates; TOL discussion
−
|Chris Holmes (FSU)
+
|Jessica Haskins (Utah)
−
|Science
+
|Structural
 
|
 
|
−
*Ocim-pure physical transport, ECCO-Darwin ocean biogeochemistry
 
  
 
|-valign="top"
 
|-valign="top"
−
|DMS oxidation scheme updating
+
|Stretched-grid plotting in GCPy
−
|Qianjie Chen (UW)<br>Chemistry WG
+
|Killian Murphy (York)
−
|Science
+
|Tools
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Limiting NH3 uptake due to OA
+
|Model inter-comparison of transport (GEOS, GCHP, GCClassic)
−
|Rachel Silvern (Harvard)
+
|Lizzie Lundgren (Harvard), Emma Knowland (NASA)
−
|Science
+
|Transport
 
|
 
|
  
−
|}
+
|-valign="top"
 +
|Comparing mass fluxes in GCHP vs. traditional lat/lon wind
 +
|Yuanjian Zhang (WashU), Seb Eastham (ICL)
 +
|Transport
 +
|
  
−
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 15:32, 23 May 2018 (UTC)
+
|}

Revision as of 13:36, 26 June 2024

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.

Merged and awaiting release

See the links below for items merged and awaiting release.

Mergeable at any time Version in development
GEOS-Chem no-diff-to-benchmark GEOS-Chem 14.5.0

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
ALK4 & R4N2 chemistry Jared Brewer (UMN) Chemistry Simple
New soil NOx parameterization Yi Wang (Iowa)
Jun Wang (Iowa) 		Emissions Medium
Fix pressure handling in HEMCO standalone Melissa Sulprizio (Harvard) HEMCO Simple
Fix obspack - not working in 14.4.0 Bob Yantosca (Harvard) Diagnostics Medium
Horizontal flux regridding fix in MAPL Tom Clune (GMAO) GCHP Medium
Cloud-J 7.7.2 for greater flexibility in external models Lizzie Lundgren (Harvard) Photolysis Medium
GCHP run directory improvements for mass flux, stretched grid, and GEOS-IT runs Lizzie Lundgren (Harvard) GCHP Medium
Fixes for GEOS-Chem 14.4 in CESM Haipeng Lin (Harvard)
Lizzie Lundgren (Harvard) 		CESM Medium

Prioritized and in the queue

Features listed in this table are prioritized for integration into GEOS-Chem in the near future.

Feature Contributor(s) Model scope Ease of implementation Delivery status Notes and References
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple Delivered June 2024
Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4 Lizzie Lundgren (Harvard) GC-Classic Medium

Ready to go in

Features listed in this table are ready to go in but have either not been delivered or are not yet prioritized for integration into GEOS-Chem.

Feature Contributor(s) Model scope Delivery status Notes and Refereneces


Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol Camilo Serrano (McGill)
Andreas Zuend (McGill) 		Aerosols Not delivered
Extend aerosol settling Eloise Marais (UCL) Aerosols Not delivered
Comment back in Ca, Mg, and K cations in aerosol thermo (HETP) Becky Alexander (UW) Aerosols Not delivered
Seasalt aerosol from sea ice leads (2002-2011) Hannah Horrowitz (UIUC) Aerosols Not delivered
  • Offline and online, ready to go in HEMCO (optional in addition to existing seasalt emissions)
P/L species should not contribute to the error norm Obin Sturm (USC) Chemistry Not delivered
Additional 6 peroxynitrates (many PANs like species); improve ALK4 & add ALK6 Katie Travis (NASA LARC) Chemistry Not delivered
Monoterpene oxidation more species & oxidation products Kevin Bates (CU Boulder) Chemistry Not delivered
PPN photolysis Eloise Marais (UCL) Chemistry Not delivered
Hlobal organic N dep from various emissions; nitrate aromatics updates May Fu (SUSTech) Chemistry +
Deposition 		Not delivered
ALK4 from biogenic vs anthro Jared Brewer (UMN) Chemistry Not delivered
Dry deposition to F90 to improve readability Chris Holmes (FSU) Dry Deposition Not delivered
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam (CUHK)
Amos Tai (CUHK) 		Dry deposition Delivered
Feb 2021
FRP-based fire emissions for eastern US at 0.2 (2019-2020) Chris Holmes (FSU) Emissions Not delivered
China agriculture NH3 emissions Amos Tai (CUHK) Emissions Not delivered
T-dependent anthropogenic VOCs May Fu (SUSTech) Emissions Not delivered
  • Option. Requires processing existing anthropogenic VOC emissions to generate offline emissions to read in. Parameterised for China.
New source functions for transport tracers beryllium-7 and beryllium-10 Minjie Zheng (ETH) Emissions Not delivered
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100 Yang Li (Baylor U)
Loretta Mickley (Harvard) 		Emissions Delivered
  • Data involves many files- need to think about temporal frequency
Australian emissions Stephen MacFarlane (Wollongong)
Jenny Fisher (Wollongong) 		Emissions Not delivered
Hg geogenic emissions (volcanic, rock weathering) Eric Roy (MIT) Emissions Not delivered
Hg biomass burning - FINN2.5 & GFED4 Eric Roy (MIT) Emissions Not delivered
BCC-GC online Lin Zhang (PKU) External Model Not delivered
GC-YIBS with online fire emissions Xu Yue (NUIST)
Hong Liao (NUIST) 		External Model Not delivered
GISS-GC offline (GCAP) Lee Murray (Rochester) GCAP Not delivered
Archived TCR-2 OH fields for carbon simulations Kazu Miyazaki (JPL) Input data Not delivered
  • This will be the default OH, but users will have the option of selecting other OH fields

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


Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard) 		Diagnostics
Dust non-sphericity impacts on optical properties Inderjeet Singh (WashU) Aerosols
Fixes to stratospheric aerosol settling Connor Barker (UCL)
Eloise Marais (UCL) 		Aerosols
DMS chemistry in v14 Linia Tashmim (UCR)
Will Porter (UCR) 		Chemistry
KPP standalone + 3D Interface Obin Sturm (USC) Chemistry
Load balancing in chemistry solver (GCHP) Zhouran (Jordan) Sun (WashU) Chemistry +
Performance
UCX chemistry in mesosphere (GCHP/GCClassic) Helena McDonald (MIT) Chemistry
Updated aromatic oxidation Stephen MacFarlane (Wollongong)
Jenny Fisher (Wollongong) 		Chemistry
MCO3 uptake by cloud forming MP; leading to lower PAN Laura Yang (Harvard) Chemistry
Implement isotope simulation for CH4 in the carbon simulation Lee Murray (Rochester) Chemistry
  • Will have to change negative emissions from soil to a first-order loss process
Active mesospheric chemistry Helena McDonald (MIT)
Seb Eastham (ICL) 		Chemistry
Documentation for adding additional aerosol species Connor Barker (UCL) Documentation
Column diagnostics Lizzie Lundgren (Harvard)
Viral Shah (GMAO) 		Diagnostics
TOMAS rate diagnostics -- improve performance Betty Croft (WashU/Dal) Diagnostics +
Performance
Archive gamma values from heterogeneous chemistry Bob Yantosca (Harvard) Diagnostics
RRTMG Documentation GCST Documentation
Canopy Physics Model Sam Silva (MIT) Dry Deposition
Dry deposition diagnostics by land cover Holly Nowell (FSU)
Chris Holmes (FSU) 		Dry Deposition
Dry deposition process diagnostics Holly Nowell (FSU)
Chris Holmes (FSU) 		Dry Deposition
Biomass burning for TOMAS Nicole June (CSU) Emissions +
Microphysics
Historic biomass burning (1750-2010) Pengfei (Gtech) Emissions
Rice methane emissions Zichong Cheng (Harvard) Emissions+
Carbon simulation
Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.) Katie Travis (NASA)
Kelvin Bates (CU Boulder) 		Emissions
Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3) Tia Scarpelli (Carbon Mapper)
Melissa Sulprizio (Harvard) 		Emissions
New prior CO2 biospheric fluxes from CMS-FLUX and GMAO Kevin Bowman (JPL)
Lesley Ott (GMAO) 		Emissions
  • GMAO can provide high-resolution fluxes (as high as 12 km)
Snowpack Br2 emission Chris Holmes (FSU) Emissions
EDGAR v8.1_toxHg emissions for 1970-2022 Eric Roy (MIT) Emissions
Improve pressure handling in GCHP advection Yuanjian Zhang (WashU)
Seb Eastham (ICL) 		GCHP
Add error trap for duplicate scale factors in HEMCO Bob Yantosca (Harvard) HEMCO
Integration testing: Add stretched grid Lizzie Lundgren (Harvard) Quality Assurance
Integration testing: Add GCAP2 GCST Quality Assurance
Integration testing: Add GCHP mass flux run Lizzie Lundgren (Harvard) Quality Assurance
Integration testing: Add run with all diagnostics turned on GCST Quality Assurance
Integration testing: Reinstate TOMAS40 Betty Croft (Dalhousie/WashU) Quality Assurance
Strat-adjusted RF in GCC and GCHP Connor Barker (UCL)
Eloise Marais (UCL) 		Radiation
Continue cleanup of C-preprocessor switches Lizzie Lundgren (Harvard) Structural
Updates to Luo deposition scheme Gan Luo (Albany) Wet Deposition
  • New version, keep as switch (not default)
Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer Gan Luo (Albany)
Fangqun Yu (Albany) 		Wet Deposition

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
ML algorithms for bulk aerosol Arshad Nair (Albany)
Fangqun Yu (Albany) 		Aerosols
Heterogeneous sulfate chemistry Katie Travis (NASA) Chemistry
H2 as an active species Seb Eastham (ICL) Chemistry
HCN, acetonitrile as fire tracers Kevin Bates (CU Boulder) Chemistry
Implement ethane in carbon simulation Yuzhong Zhang (Westlake) Chemistry
VCPs emissions Kelvin Bates (CU Boulder) Emissions
Mesospheric source of CO Dylan Jones (UofT)
Pam Wales (NASA GSFC) 		Emissions
Drought-stress algorithm Wei Li (Houston) Emissions
Physically-based resolution correction for BVOC emissions using MEGAN May Fu (SUSTech) Emissions
Canadian forest fire prediction system (Canada government forecast model) Robin Stevens (Montreal) Emissions
Furan emission factors (updates existing emissions) Lu Hu (Montana)
Lixu Jin (Montana) 		Emissions
Cooking emissions (not biofuel) Kelvin Bates (CU Boulder) Emissions
State-specific annual emissions scaling factors (US) (1990-2021) Ishir Dutta (MIT) Emissions
GISS-GC online Lee Murray (Rochester) External model
Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT)
Killian Murphy (York)
Lizzie Lundgren (Harvard) 		GCHP
MAPL3: Update to MAPL3 in GCHP, including replacement of ExtData.rc and HISTORY.rc with YAML files Lizzie Lundgren (Harvard) GCHP
MAPL3: Comply with MAPL "positive" standard in GCHP diagnostic files Lizzie Lundgren (Harvard) GCHP
MAPL3: Wildcards in GCHP History Lizzie Lundgren (Harvard) GCHP
MAPL3: Output emissions with positive up convention in GCHP Lizzie Lundgren (Harvard) GCHP
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone Bob Yantosca (Harvard) Performance
Photophysical oxidation of aldehydes Paulo Sebastianelli (Wollongong)
Jenny Fisher (Wollongong) 		Chemistry
DMS updates Will Porter (UCR) Chemistry
Furans emission and chemistry Lixu Jin (Montana)
Lu Hu (Montana) 		Chemistry +
Emissions
Cl2 prodcution from Fe aerosol Qianjie Chen (HK Poly)
Becky Alexander (UW) 		Chemistry
VCP, cooking: tracers species added i.e., D5, ethanol affecting PAN Kevin Bates (CU Boulder) Emissions
bidirectional land-atmosphere exchange for Hg Yuying Cui (MIT/Tsinghua) Hg simulation
OH covariances for inversions Elise Penn (Harvard) Inversions
CESM2-GC offline Seb Eastham (ICL)
Lee Murray (Rochester) 		Met fields
Re-binning of off-line sea salt and dust for TOMAS Betty Croft (Dalhousie) Microphysics
TOMAS nucleation updates Sam O'Donnell (CSU) Microphysics
Stratospheric aerosol APM Fangqun Yu (SUNY Albany) Microphysics
Transition from MERRA-2 to GEOS-IT for benchmarking Yuanjian Zhang (WashU) Quality Assurance
Automate integration testing on AWS Yidan Tang (WashU) Quality Assurance
Integration testing: Add across end of year run GCST Quality Assurance
Integration testing: Add GEOS-IT Yuanjian Zhang (WashU) Quality Assurance
Separate mixing, emissions, and drydep Yuanjian Zhang (WashU) Structural
Intel IFX compiler Bob Yantosca (Harvard) Structural
CMake option to only build libraries but not executable, also passing C-preprocessor statements to turn off code Bob Yantosca (Harvard)
Lee Murray (Rochester) 		Structural
Remove differences introduced when breaking up GC-Classic runs in time; and flexible precision in HEMCO Lizzie Lundgren (Harvard) Structural
Limit allocation of State_Met to what is needed per simulation Melissa Sulprizio (Harvard) Structural

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
Modal aerosol model (MAM7) in GCHP Shreya Sharma (MIT) Aerosols
Online OCIM ocean biogeochemistry Lee Murray (Rochester)
Hannah Horowitz (UIUC)
Chris Holmes (FSU) 		Chemistry
Perchlorate chemistry Yuk Chun Chan (UW) Chemistry
Non-stomatal dry deposition (2-layer canopy model) Michael Vermeuel (Purdue) Dry Deposition
Continental chloride particle emissions (salty dust, road salt) Jessica Haskins (Utah) Emissions
Multivolatility emission inventory to address gaps in EDGAR/HTAP etc. Ruochong (Tshingua) Emissions
Lightning NOx production rates Bex Horner (UCL) Emissions
HFO and CF3CHO Beth Killen (Wollongong)
Jenny Fisher (Wollongong) 		Chemistry
Glyoxal updates from isoprene Tzung-May Fu (SUSTech) Chemistry
Iodine chemistry Becky Alexander (UW)
Xuan Wang (CUHK) 		Chemistry
Chlorine/Perchlorate Yukchun Chan (UW) Chemistry
Playa dust chemistry to improve Cl over land Jessica Haskins (Utah) Chemistry
GFED5 biomass burning Eric Roy (MIT) Emissions
Ocean Hg surface concentrations for 2010-2020 from multi-model ensemble Eric Roy (MIT)
Ari Feinberg (IQF-CSIC) 		Hg simulation
Soil Hg emissions 2010-2020 Eric Roy (MIT)
Ari Feinberg (IQF-CSIC) 		Hg simulation
Air-sea exchange parameterization Eric Roy (MIT) Hg simulation
Soil Hg emissions parameterization Ari Feinberg (IQF-CSIC) Hg simulation
Sea salt uptake of GOM Eric Roy (MIT) Hg simulation
Photoreduction rate constant Eric Roy (MIT) Hg simulation
new observations (2010-2020) in standardized Hg benchmark for intercomparison Eric Roy (MIT)/Ari Feinberg (IQF-CSIC) Hg simulation
Hg simulation in GCHP Eric Roy (MIT) Hg simulation
OCIM - biogeochemical model - (C/P/N/Fe - no Hg yet) (MATLAB) Hannah Horowitz (UIUC) Hg simulation
possibly updating Hg oxidation chemistry based on Utah field campaigns Jessica Haskins (Utah) Hg simulation
New halogen/aerosol fields (surface area / AOD) from 10-year 14.4 benchmark simulation available online Viral Shah (NASA GMAO); Eric Roy (MIT); Ari Feinberg (IQF-CSIC) Input data
Extend IMI to CO2 (ICI) Hannah Nesser (JPL) Inversions
Global emission inventory of metals Tzung-May Fu (SUSTech); He Zhong Tian (Peking Normal U) Metals simulation
Investigate and improve performance of aerosol chemistry Bob Yantosca (Harvard) Performance
PAH - update from version 11 Lexia Cicone (MIT) POPs simulation
Species database more accessible; doc updates; TOL discussion Jessica Haskins (Utah) Structural
Stretched-grid plotting in GCPy Killian Murphy (York) Tools
Model inter-comparison of transport (GEOS, GCHP, GCClassic) Lizzie Lundgren (Harvard), Emma Knowland (NASA) Transport
Comparing mass fluxes in GCHP vs. traditional lat/lon wind Yuanjian Zhang (WashU), Seb Eastham (ICL) Transport
Retrieved from "https://wiki.seas.harvard.edu/geos-chem/index.php?title=GEOS-Chem_model_development_priorities&oldid=53844"