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

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(Almost there (< 6 months))
(Feature integration in progress)
 
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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 ==
  
== List of priorities from IGC8 ==
+
See the links below for items merged and awaiting release.
 
+
----
+
----
+
<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 items listed below are in different stages of readiness and will be included in future versions of the model.
+
 
+
=== 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="400px"|Feature
+
!width="300px"|Mergeable at any time
!width="250px"|Submitted by
+
!width="200px"|Version in development
!width="100px"|Type
+
!width="300px"|Status
+
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Transport updates
+
  
 
|-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]]
+
|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
|Transport WG<br>[[GCST]]
+
|align="center"|'''[[GEOS-Chem 14.4.0]]'''
|Benchmarking
+
|
+
*Currently slated for [[GEOS-Chem 12#12.2.0|GEOS-Chem 12.2.0]]
+
  
|-
+
|}
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+
  
|-valign="top"
+
== Feature integration in progress ==
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+
|Sebastian Eastham (MIT)
+
|Science
+
|
+
*Currently slated for [[GEOS-Chem 12#12.3.0|GEOS-Chem 12.3.0]]
+
  
|-
+
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.
!colspan="4" bgcolor="#CCFFFF"|Emissions updates
+
  
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
|[[Volcanic_SO2_emissions_from_Aerocom#OMI-based_volcanic_emissions|OMI-based volcanic emissions 2005-2012]]
+
|-bgcolor="#CCCCCC"
|Cui Ge (U. Iowa)<br>Jun Wang (U. Iowa)
+
!width="200px"|Feature
|Science
+
!width="200px"|Contributor(s)
|
+
!width="100px"|Model scope
*Currently slated for [[GEOS-Chem 12#12.3.0|GEOS-Chem 12.3.0]]
+
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[[Mineral_dust_aerosols#Anthropogenic_PM2.5_dust_source_in_GEOS-Chem|Anthropogenic PM2.5 dust source]]
+
|GCHP carbon simulation
|Sajeev Philip (Dalhousie)
+
|Melissa Sulprizio (Harvard)<br>Bob Yantosca (Harvard)
|Science
+
|Carbon
 +
|Medium
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.1.0|GEOS-Chem 12.1.0]]
+
*[https://github.com/geoschem/geos-chem/pull/1992 geos-chem PR #1992]
 +
*[https://github.com/geoschem/GCHP/issues/339 GCHP Issue #339]
  
 
|-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) ]]
+
|KORUS-AQ emissions for East Asia (as an option)
|Jenny Fisher (Wollongong) <br>Barron Henderson (US EPA)
+
|Katie Travis (NASA)
|Science
+
|Emissions
 +
|Simple
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.3.0|GEOS-Chem 12.3.0]]
 
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
 
  
 
|-valign="top"
 
|-valign="top"
|Sea salt aerosol alkalinity
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
|Qianjie Chen (UW)<br>Becky Alexander (UW)<br>Xuan Wang (Harvard)
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
|Science
+
|Emissions
 +
|Simple
 
|
 
|
*UW version delivered to GCST (Nov 2017)
 
  
 
|-valign="top"
 
|-valign="top"
|VBS SOA option
+
|New version of CEDS at 0.1 deg
|Rokjin Park (SNU)
+
|Dandan Zhang (WashU)
|Science
+
|Emissions
 +
|Simple
 
|
 
|
*Code has been implemented in the ancient v9-01-02 version. 
+
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
*Bringing this up to the current SOA model (simple SOA, complex SOA) will likely involve significant effort.
+
*'''Currently on hold while an issue with seasonality in the new CEDS data is being investigated'''
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
+
  
 
|-valign="top"
 
|-valign="top"
|AMAP/UNEP 2035 for Hg simulation
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
|Helene Angot (MIT)
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
|Science
+
|Emissions
 +
|Medium
 
|
 
|
*Data is available, but has not been transferred to GCST yet
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-valign="top"
|Oxidant fields from v10 for 2006-2012
+
|Remove differences in GC-Classic when breaking up runs in time
*3D chemical source for CO2, CO
+
|Lizzie Lundgren (Harvard)
*OH for tagged CO & CH4
+
|GC-Classic
|Dylan Jones (UofT)
+
|Medium
|Science
+
 
|
 
|
*Will make data files available on ftp site
 
  
 
|-valign="top"
 
|-valign="top"
|Africa nested-grid for GEOS-FP and MERRA-2
+
|GCHP advection diagnostics
|Eloise Marais (U. Birmingham)
+
|Lizzie Lundgren (Harvard)
|Science
+
|GCHP diagnostics
 +
|Simple
 
|
 
|
*Delivered to GCST (Dec 2017)
+
*[https://github.com/geoschem/GCHP/pull/395 gchp PR #395]
*Could be implemented with Jiawei Zhuang's FlexGrid
+
  
 
|-valign="top"
 
|-valign="top"
|West Africa nested-grid for GEOS-FP
+
|Only convert units for species that need it
|Mat Evans (York)<br>Eleanor Morris (York)
+
|Bob Yantosca (Harvard)
|Science
+
|Unit conversions
 +
|Medium
 
|
 
|
*Could be implemented with Jiawei Zhuang's FlexGrid
+
*[https://github.com/geoschem/geos-chem/pull/2072 geos-chem PR #2072]
 +
*'''This update breaks TOMAS, further development is needed'''
  
|-valign="top"
+
|}
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
+
|Becky Alexander (UW)
+
|Science
+
|
+
  
|-valign="top"
+
== Prioritized and in the queue ==
|Arsenic simulation
+
|Shiliang Wu (MT)
+
|Science
+
|
+
  
|-
+
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
!colspan="4" bgcolor="#CCFFFF"|GCHP updates
+
  
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
|None
+
|-bgcolor="#CCCCCC"
|
+
!width="200px"|Feature
|
+
!width="200px"|Contributor(s)
|
+
!width="100px"|Model scope
 
+
!width="100px"|Ease of implementation
|-
+
!width="100px"|Delivery status
!colspan="4" bgcolor="#CCFFFF"|Structural updates
+
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Updated flux diagnostics
+
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
|Chris Holmes (Florida State)<br>[[GCST]]
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
|Structural/<br>Benchmarking
+
|Chemistry
 +
|TBD
 +
|Delivered<br>June 2023
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.1.0|GEOS-Chem 12.1.0]]
+
*[https://acp.copernicus.org/articles/22/12367/2022/acp-22-12367-2022.html Pérez-Peña, M.P. et al., ACP, 2022.]
 +
*Implemented in v12.5, needs to be brought up to current version
  
 
|-valign="top"
 
|-valign="top"
|Benchmark of stratospheric simulation
+
|ALK4 & R4N2 chemistry
|Dylan Jones (U. Toronto)
+
|Jared Brewer (UMN)
|Benchmarking
+
|Chemistry
 +
|TBD
 +
|Not delivered
 
|
 
|
*1-yr benchmarks for GEOS-Chem v11-01d and later include comparisons with OSIRIS O3
+
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
*Waiting on OSIRIS NO2 data
+
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., submitted 2023.]
*Waiting on comparisons with ACE-FTS data
+
  
 
|-valign="top"
 
|-valign="top"
|Add total column O3 to benchmarks
+
|[https://github.com/geoschem/geos-chem/pull/1983 Updated gravitational settling, dry mass-weighted mean diameters and hygroscopic growth in aerosol dry deposition]
|Chris Holmes (FSU)<br>[[GCST]]
+
|Yanshun Li (WashU)
|Benchmarking
+
|Aerosols
 +
|Simple
 +
|Delivered<br>Oct 2023
 
|
 
|
*Deferred until GEOS-Chem 12
+
*[https://acp.copernicus.org/articles/23/12525/2023/acp-23-12525-2023.html Li et al., ACP, 2023.]
*Also note: GCST plans on migrating benchmark plotting code from IDL to Python in v11-03
+
*[https://github.com/geoschem/geos-chem/pull/1983 geos-chem PR #1983]
 +
* '''Waiting on code updates from developer'''
  
 
|-valign="top"
 
|-valign="top"
|ObsPack diagnostic as netCDF replacement for planeflight_mod.F
+
|Mass flux regridding fix in MAPL
|Andy Jacobson (NOAA/ESRL)
+
|Lizzie Lundgren (Harvard)<br>Seb Eastham (MIT)
|Structural
+
|GCHP input regridding
 +
|Medium
 
|
 
|
*Delivered to GCST (May 2017)
 
 
|-valign="top"
 
|[[GEOS-Chem_v11-02#Discrepancies_in_single-stage_simulations_vs_multi-stage_simulations|Updates to eliminate differences between single and multi-segmented GEOS-Chem runs]]
 
|[[GCST]]<br>Christoph Keller
 
|Bug fix<br>Structural
 
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.1.0|GEOS-Chem 12.1.0]]
+
*[https://github.com/GEOS-ESM/MAPL/pull/2056 GEOS-ESM/MAPL PR #2056]
  
 
|-valign="top"
 
|-valign="top"
|Further structural updates to facilitate interfacing GEOS-Chem with external models (e.g. WRF, CAM, CESM)
+
|[https://github.com/geoschem/geos-chem/issues/1747 Parameterization of SNA and OM dry size]
|[[GCST]]
+
|Haihui Zhu (WashU)
|Structural
+
|Aerosols
 +
|Medium
 +
|Delivered<br>Aug 2023
 
|
 
|
*Ongoing
+
*[https://egusphere.copernicus.org/preprints/2022/egusphere-2022-1292/ Zhu et al., EGUsphere, submitted 2023.]
 
+
*[https://github.com/geoschem/geos-chem/pull/1902 geos-chem PR #1902]
|-
+
*'''Currently on hold, as this update requires further modifications in the Cloud-J repository'''
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
+
  
 
|-valign="top"
 
|-valign="top"
|[[FlexGrid|FlexGrid: Use HEMCO to read met fields and enable nested simulations over any custom domains]]
+
|Capture all trop and PBL height changes in budget diagnostics
|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
|Structural
+
|Diagnostics
 +
|Medium
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.1.0|GEOS-Chem 12.1.0]]
 
 
|-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]]
 
|Seb Eastham (Harvard)
 
|Science
 
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.3.0|GEOS-Chem 12.3.0]]
+
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
  
|-valign="top"
 
|Archival of roughness length for temperature z0T
 
|[[GCST]]
 
|Met processing
 
|
 
*Work has not yet begun
 
 
|}
 
|}
  
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 16:10, 20 June 2018 (UTC)
+
== Ready to go in ==
  
=== Almost there (< 6 months) ===
+
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.
  
{| border=1 cellspacing=0 cellpadding=5
+
{| border=1 cellspacing=0 cellpadding=5  
|- bgcolor="#cccccc"
+
|-bgcolor="#CCCCCC"
!width="400px"|Item
+
!width="200px"|Feature
!width="250px"|Author(s)
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="300px"|Status
+
!width="100px"|Delivery status
 
+
!width="300px"|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]
+
|Geologic emission of ethane and propane
|Karen Yu (Harvard)
+
|Matthew Rowlinson and Mat Evans(York)
|Science
+
|Emissions
 +
|Delivered<br>Jan 2023
 
|
 
|
*To be installed by Bob Yantosca (Harvard), tested by Tailong He (Toronto)
+
*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
*Work to begin after v11-02 release
+
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+
  
 
|-valign="top"
 
|-valign="top"
|N2O5 hydrolysis updates
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
|Viral Shah (UW)
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Science
 
|Science
 +
|Delivered<br>Feb 2021
 
|
 
|
*Defer until paper is submitted (Summer 2018)
+
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
*Code from v10 (SMVGEAR) needs to be translated to v11 (FlexChem); this may take some effort
+
  
 
|-valign="top"
 
|-valign="top"
|H2 chemistry in UCX
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
|Chris Holmes (FSU)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
|Science
+
|Emissions
 +
|Delivered<br>Jul 2021
 
|
 
|
*Defer until paper is submitted
+
*Data involves many files- need to think about temporal frequency
*Estimate Fall 2018 or sooner
+
  
 
|-valign="top"
 
|-valign="top"
|Updated chlorine chemistry
+
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
|Xuan Wang (Harvard)
+
|Shixian Zhai (Harvard)
|Science
+
|Emissions
 +
|Delivered
 
|
 
|
*Defer until the paper is submitted
+
*Need permission from Qiang Zhang (Tsinghua U.) to distribute data
  
 
|-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]]
+
|DMS Chemistry
|Katie Travis (MIT)
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
|Structural
+
|Chemistry
 +
|Not delivered
 
|
 
|
*Defer until the paper is submitted
 
  
 
|-valign="top"
 
|-valign="top"
|OH + NO2 rate update
+
|Organic acids (RCOOH)
|Barron Henderson (EPA)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[Chemistry_Issues#Script_for_evaluating_carbon_balance|Script for checking N, C, etc. balance in chemistry mechanism]]
+
|Improve carbon & nitrogen conservation in reactions
|Barron Henderson (EPA)
+
|Kelvin Bates (Harvard)
|Software
+
|Chemistry
|Barron Henderson wrote:
+
|Not delivered
*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"
+
|Aromatics and dicarbonyl chemistry
+
|William Porter (MIT)<br>Tzung-May Fu (PKU)
+
|Science
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Document chemical mechanism in KPP file
+
|Blowing snow sea salt in TOMAS
|Mat Evans (York)
+
|Betty Croft (Dalhousie)
|Structural
+
|Aerosols
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Diurnal variability for NH3
+
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
|Henze group
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
|Science
+
|Hg simulation
|Daven Henze wrote:
+
|Not delivered
*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
+
|WRF-GC Hg simulation
|Prasad Kasibhatla (Duke)
+
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
|Science
+
|Hg simulation<br>WRF-GC
 +
|Not delivered
 
|
 
|
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Emissions updates
 
  
 
|-valign="top"
 
|-valign="top"
|Grid-independent lightning NOx emissions (3-hourly)
+
|Updated HgII gas-partical partitioning
|Lee Murray (Rochester)
+
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
|Science
+
|Hg simulation
 +
|Not delivered
 
|
 
|
*Data has not yet been transferred to GCST
+
*Should be option, not default
  
 
|-valign="top"
 
|-valign="top"
|Grid-independent dust emissions (hourly)
+
|Dry deposition to F90 (readability)
|David Ridley (MIT)
+
|Chris Holmes (FSU)
|Science
+
|Dry deposition
 +
|Not delivered
 
|
 
|
*Data has not yet been transferred to GCST
+
 
 +
|}
 +
 
 +
== 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
 +
|- bgcolor="#cccccc"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Grid-independent biogenic emissions (hourly)
+
|Replace ISORROPIA with [https://gmd.copernicus.org/preprints/gmd-2023-159/gmd-2023-159.pdf HTEPv1.0]
|Jintai Lin (PKU)
+
|Seb Eastham (MIT)<br>Lizzie Lundgren (Harvard)
|Science
+
|Aerosol thermodynamics
 
|
 
|
*Data has not yet been transferred to GCST
+
*Will be git submodule
  
 
|-valign="top"
 
|-valign="top"
|Grid-independent sea salt emissions (hourly)
+
|PPN+hv, PPN+OH
|Jintai Lin (PKU)
+
|Robert Ryan (UCL)
|Science
+
|Chemistry
 
|
 
|
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
|EPA-derived BC/OA emissions over US (1990-2012)
+
|MBO
|David Ridley (MIT)<br>Chi Li (Dalhousie)
+
|Michael Vermeuel (UMN)
|Science
+
|Chemistry
 
|
 
|
*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]]
+
|Initial conditions for CH4 correcting background and stratospheric biases
|Barron Henderson (US EPA)
+
|Todd Mooring (Harvard)
|Science
+
|Methane simulation
 
|
 
|
*Pending receipt of corrected data files
 
  
 
|-valign="top"
 
|-valign="top"
|EPA NEI2011 Version EK
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
|Zitely Tzompa-Sosa (CSU)<br>Emily Fischer (CSU)
+
|Bob Yantosca (Harvard)
|Science
+
|Aerosols<br>Structural
 
|
 
|
*Estimate Late 2018 or sooner
+
*Ongoing
  
 
|-valign="top"
 
|-valign="top"
|GFAS biomass burning emissions
+
|Re-binning of off-line sea salt and dust for use in TOMAS
|Mat Evans (York)
+
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
|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.
 
*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]]
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
|Amos Tai (CUHK)
+
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 
|
 
|
*Waiting on data
 
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|ML algorithms for bulk aerosols
|Fabien Paulot (NOAA/GFDL)
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
|Science
+
|Aerosols
 
|
 
|
*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
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
|Juliet Zhu (CSU)<br>Emily Fischer (CSU)
+
|Shixian Zhai (Harvard)
|Science
+
|Aerosols
 
|
 
|
*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
+
|Updates to Hodzic SOA scheme
|Jeff Geddes (BU)
+
|Jared Brewer (Harvard)
|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
+
|Automated reduction in isoprene scheme
|Amos Tai (CUHK)
+
|Dan Westervelt (Lamont-Doherty)
|Science
+
|Aerosols
 
|
 
|
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Wet deposition updates
 
  
 
|-valign="top"
 
|-valign="top"
|Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc.
+
|Brown carbon chemsitry
|Sarah Safieddine (MIT)<br>GCST
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Wet scavenging in mixed-phase clouds
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
|Bo Zhang (NIA/NASA Langley)
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
|Science
+
|Convection
 
|
 
|
*Defer until paper is published
 
*Estimate Fall 2018
 
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
 
  
 
|-valign="top"
 
|-valign="top"
|Radon emission update
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
|Bo Zhang (NIA/NASA Langley)
+
|Jintai Lin (PKU)
|Science
+
|Emissions
 
|
 
|
*Defer until paper is published
+
*Horizontal resolution: 5km, temporal resolution: JJA mean
*Estimate Fall 2018
+
*monthly data will be available at a later stage; please contact us
  
 
|-valign="top"
 
|-valign="top"
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Updated biomass burning emission factors and species
|Colin Thackray (Harvard)<br>Carey Friedman (formerly MIT)<br>Helen Amos (formerly Harvard)
+
|Tess Carter (MIT)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|New EDGAR sectoral inventory for Hg (1970-2012)
+
|Updated offline sea salt emissions
|Amanda Giang (MIT)
+
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive GISS met fields from RCP scenarios for community
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
|Lee Murray (Rochester)
+
|Sam Silva (MIT)
|Science
+
|Emissions &<br>Science
 
|
 
|
 
+
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
|-
+
*Needs to be updated to a more recent GEOS-Chem version
!colspan="4" bgcolor="#CCFFFF"|GCHP updates
+
  
 
|-valign="top"
 
|-valign="top"
|New version of MAPL
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
|GMAO<br>Lizzie Lundgren (GCST)
+
|Bob Yantosca (Harvard)
|Structural
+
|Model performance
 
|
 
|
 +
*Ongoing (will be done as time allows)
  
 
|-valign="top"
 
|-valign="top"
|Flux ingestion
+
|Retire all BPCH diagnostics
|Sebastian Eastham (MIT)
+
|Bob Yantosca (Harvard)
|Science
+
|Diagnostics
 
|
 
|
 
+
*Can be done following the [https://github.com/geoschem/geos-chem/pull/1569 TOMAS update for GCHP]
|-
+
!colspan="4" bgcolor="#CCFFFF"|Structural updates
+
  
 
|-valign="top"
 
|-valign="top"
|Clean up SOA diagnostics
+
|Assess memory leak in GCHP
|GCST
+
|Killian Murphy (York)
|Structural
+
|Model performance
 
|
 
|
*GCST has implemented many existing SOA diagnostics in netCDF
+
*NOTE: Most memory leaks in GCHP have been fixed by [https://github.com/geoschem/geos-chem/pull/1353 geoschem/geos-chem PR #1353].  Need to assess if any memory leaks still remain.
*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)
+
|Hybrid MPI-OpenMP in GCHP
|GCST
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
|Structural
+
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Harmonizing Henry's Law coefficients across wet and dry deposition
+
|Improve run directory templating and creation with init_rd.sh and shared directories
|[[GCST]]
+
|Jourdan He (WashU)
|Science
+
|Run directories
 
|
 
|
*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
+
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
|Rokjin Park (SNU)<br>Daniel Rothenberg (MIT)
+
|GCST?
|Science
+
|Documentation
 
|
 
|
*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="400px"|Item
+
!width="200px"|Feature
!width="250px"|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"
+
|GISS-GC GCHP
+
|Lee Murray (Rochester)<br>Pengfei Liu (Harvard)<br>Yang Li (Harvard)
+
|Science
+
 
|
 
|
*Rochester and Harvard groups are coordinating, to avoid duplication of effort
 
  
 
|-valign="top"
 
|-valign="top"
|CESM-GC GCHP
+
|Extension of UCX into the mesosphere
|Seb Eastham (MIT)
+
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
|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:
+
|Methane flux ingestion
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Eloise Marais (UCL)
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
|Chemistry
|[[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
+
|Modularization of aerosols code for interface with GOCART in GEOS
*Make high-res concentrations or mass fluxes available offline, implement in met field processing
+
|Christoph Keller (GMAO)
|David Ridley (MIT)<br>GCST<br>Nested Model WG
+
|Structural
|Science
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dust emissions at nested-grid resolutions
+
|Improve load balancing in GCHP
|Yuxuan Wang (U. Houston)<br>Jun Wang (U. Iowa)
+
|Seb Eastham (MIT)
|Science
+
|Model performance
 
|
 
|
*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]]
+
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
|Duncan Fairlie (NASA/LARC)  
+
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Sea salt emission from sea ice
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
|Jiayue Huang (UW)
+
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem_species_units|Uniformity of units]]
+
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
|[[GCST]]
+
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
|Structural
+
|Transport
|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="400px"|Item
+
!width="200px"|Feature
!width="250px"|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
+
|Updates to Aromatic chemistry
|Jiawei Zhuang (Harvard)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|1/8 degree nested-grid simulations with GEOS-FP
+
|Nitrate photolysis
|Nested Model WG
+
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
|Science
+
|Chemistry
 
|
 
|
*Wait for more interest
 
  
 
|-valign="top"
 
|-valign="top"
|Embedding GEOS-Chem into CESM
+
|In aerosol chemistry Halogens
|Jean-Francois Lamarque (NCAR)
+
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
|Science
+
|Chemistry
 
|
 
|
*NOTE: Seb Eastham is already working on this
 
  
 
|-valign="top"
 
|-valign="top"
|Adjoint of carbon cycle simulation in GCHP
+
|Benchmark box model of GC Chemistry
|Kevin Bowman (JPL)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Isoprene chemistry v2 (new Caltech update)
+
|Alkyl nitrates Alk7, PHAN
|Kelvin Bates (Caltech)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Contemporary land cover: developing historical and updated GEOS-Chem land cover maps based on satellite remote sensing
+
|Add stratospheric ozone species to full-chemistry simulations
|Jeff Geddes (BU)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Farquhar-Ball-Barry model to calculate stomatal resistance
+
|Amos Tai (CUHK)<br>Jeff Geddes (BU)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Impacts of chemistry on ecosystem/carbon cycle
+
|Kevin Bowman (JPL)<br>Anthony Bloom (JPL)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Improved lightning emission scheme
+
 
|Lee Murray (Rochester)
 
|Lee Murray (Rochester)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Resolution-independent lightning NOx
+
|Perchlorate chemistry
|Lee Murray (Rochester)
+
|Yuk Chun Chan (UWAB)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Bidirectional NH3 emissions
+
|Explicit heterogeneous sulfate chemistry
|Juliet Zhu (CSU)
+
|Katie Travis (NASA)<br>Becky Alexander (UT)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Country-based weekday/weekend variability for EDGAR 4.2
+
|HOx and ozone "emissions" from lightning as option in model to play with
|Lee Murray (Rochester)<br>Christoph Keller (Harvard)
+
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Update keytone photolysis
+
|Sea salt aerosol from sea ice leads
|Jared Brewer (CSU)<br>Emily Fischer (CSU)
+
|Hannah Horowitz (U. Illinois)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Small alkyl nitrates
+
|Drought-stress algorithm
|Jenny Fisher (Wollongong)
+
|Wei Li (U. Houston)
|Science
+
 
|
 
|
 
|-valign="top"
 
|YIBS-GC chemistry-biosphere-fire coupling
 
|Loretta Mickley (Harvard)<br>Xu Yue (IAP)
 
|Science
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Nitrogen-LAI coupling
+
|Biomass burning injection height profiles
|Lin Zhang (PKU)<br>Amos Tai (CUHK)
+
|Inderjeet Singh (WashU)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Implementing humidity/VPD dependence of dry deposition
+
|OCIM integration
|Jennifer Murphy (U. Toronto)
+
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
|Science
+
 
|
 
|
 
|-valign="top"
 
|SO2 wet scavenging
 
|Duncan Fairlie (NASA Langley)
 
|Science
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Heterogeneous sulfate production
+
|Updating landcover products in GEOS-Chem
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
|Science
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|MOSAIC implementation
+
|Dry deposition physical improvement
|Sebastian Eastham (Harvard)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Particle size climatology
+
|Fangqun Yu (SUNY Albany)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Sea salt/dust size distribution
+
|David Ridley (MIT)<br>Colette Heald (MIT)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Updates to GTMM
+
|Rebecca Stern (Harvard)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Tracer transport ocean
+
 
|Chris Holmes (FSU)
 
|Chris Holmes (FSU)
|Science
+
|Dry deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Include Hg in full chemistry simulation
+
|TOMAS WRF-GC in regional Thailand simulation
|Noelle Selin (MIT)
+
|Win Trivitayanurak (Chulalongkorn U)
|Science
+
|Aerosols
|
+
 
+
|-valign="top"
+
|Goddard seasonal weather prediction in GCHP
+
|Kevin Bowman (JPL)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Climate index diagnostics (drought, etc.)
+
|Chemistry-ecosystems-climate WG
+
|Structural
+
|
+
 
+
|-valign="top"
+
|Joint CO/CO2/CH4 simulation
+
|Nicholas Deutscher (U. Wollongong)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Carbon coupling: oceans and terrestrial models
+
|Chris Holmes (FSU)
+
|Science
+
|
+
*Ocim-pure physical transport, ECCO-Darwin ocean biogeochemistry
+
 
+
|-valign="top"
+
|DMS oxidation scheme updating
+
|Qianjie Chen (UW)<br>Chemistry WG
+
|Science
+
|
+
 
+
|-valign="top"
+
|Limiting NH3 uptake due to OA
+
|Rachel Silvern (Harvard)
+
|Science
+
 
|
 
|
  
 
|}
 
|}
 
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 15:32, 23 May 2018 (UTC)
 

Latest revision as of 18:08, 21 March 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 14.4.0

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
GCHP carbon simulation Melissa Sulprizio (Harvard)
Bob Yantosca (Harvard)
Carbon Medium
KORUS-AQ emissions for East Asia (as an option) Katie Travis (NASA) Emissions Simple
Global continental chlorine (pCl and HCl) emissions Bingqing Zhang (Georgia Tech)
Pengfei Liu (Georgia Tech)
Emissions Simple
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple
  • geos-chem issue #1745
  • Currently on hold while an issue with seasonality in the new CEDS data is being investigated
New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa)
Emissions Medium
Remove differences in GC-Classic when breaking up runs in time Lizzie Lundgren (Harvard) GC-Classic Medium
GCHP advection diagnostics Lizzie Lundgren (Harvard) GCHP diagnostics Simple
Only convert units for species that need it Bob Yantosca (Harvard) Unit conversions 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
Online H2 chemistry Maria Paula Pérez-Peña (UNSW)
Jenny Fisher (UOW)
Dylan Millet (UMN)
Chemistry TBD Delivered
June 2023
ALK4 & R4N2 chemistry Jared Brewer (UMN) Chemistry TBD Not delivered
Updated gravitational settling, dry mass-weighted mean diameters and hygroscopic growth in aerosol dry deposition Yanshun Li (WashU) Aerosols Simple Delivered
Oct 2023
Mass flux regridding fix in MAPL Lizzie Lundgren (Harvard)
Seb Eastham (MIT)
GCHP input regridding Medium
Parameterization of SNA and OM dry size Haihui Zhu (WashU) Aerosols Medium Delivered
Aug 2023
Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard)
Diagnostics 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 References
Geologic emission of ethane and propane Matthew Rowlinson and Mat Evans(York) Emissions Delivered
Jan 2023
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam(CUHK)
Amos Tai (CUHK)
Science Delivered
Feb 2021
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100 Yang Li (Baylor University)
Loretta Mickley (Harvard)
Emissions Delivered
Jul 2021
  • Data involves many files- need to think about temporal frequency
MEIC (China regional) for 2000-2017 at 0.5x0.625 deg Shixian Zhai (Harvard) Emissions Delivered
  • Need permission from Qiang Zhang (Tsinghua U.) to distribute data
DMS Chemistry Linia Tashmim (UC Riverside)
William Porter (UC Riverside)
Chemistry Not delivered
Organic acids (RCOOH) Katie Travis (NASA) Chemistry Not delivered
Improve carbon & nitrogen conservation in reactions Kelvin Bates (Harvard) Chemistry Not delivered
Blowing snow sea salt in TOMAS Betty Croft (Dalhousie) Aerosols Not delivered
Australian anthropogenic Hg emissions Stephen MacFarlane (UOW)
Jenny Fisher (UOW)
Hannah Horowitz (U. Illinois)
Viral Shah (Harvard)
Hg simulation Not delivered
WRF-GC Hg simulation Xiaotian Xu (Nanjing U.)
Yanxu Zhang (Nanjing U.)
Hg simulation
WRF-GC
Not delivered
Updated HgII gas-partical partitioning Kaiyun Liu (Tsinghua U.)
Qingru Wu (Tsinghua U.)
Shuxiao Wang (Tsinghua U.)
Hg simulation Not delivered
  • Should be option, not default
Dry deposition to F90 (readability) Chris Holmes (FSU) Dry deposition Not delivered

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
Replace ISORROPIA with HTEPv1.0 Seb Eastham (MIT)
Lizzie Lundgren (Harvard)
Aerosol thermodynamics
  • Will be git submodule
PPN+hv, PPN+OH Robert Ryan (UCL) Chemistry
MBO Michael Vermeuel (UMN) Chemistry
Initial conditions for CH4 correcting background and stratospheric biases Todd Mooring (Harvard) Methane simulation
Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism Bob Yantosca (Harvard) Aerosols
Structural
  • Ongoing
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
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
Canopy Physics Model Sam Silva (MIT) Emissions &
Science
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone Bob Yantosca (Harvard) Model performance
  • Ongoing (will be done as time allows)
Retire all BPCH diagnostics Bob Yantosca (Harvard) Diagnostics
Assess memory leak in GCHP Killian Murphy (York) Model performance
Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT)
Killian Murphy (York)
Model performance
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

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
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
Modularization of aerosols code for interface with GOCART in GEOS Christoph Keller (GMAO) Structural
Improve load balancing in GCHP Seb Eastham (MIT) Model performance
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
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
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
TOMAS WRF-GC in regional Thailand simulation Win Trivitayanurak (Chulalongkorn U) Aerosols