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

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(→‎Over the horizon (6-12 months))
 
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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/2013/index.html International GEOS-Chem Meeting (IGC6)] in May 2013 and has been continuously updated since 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 as of March 2015 ==
+
See the links below for items merged and awaiting release.
  
−
Items "Awaiting release" will be part of the next version release of GEOS-Chem and are actively being incorporated into the standard model and benchmarked. Other items are in different stages of readiness and will be included in future versions of the model.
+
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="300px"|Mergeable at any time
 +
!width="200px"|Version in development
  
−
=== Awaiting release ===
+
|-valign="top"
 +
|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
 +
|align="center"|'''[[GEOS-Chem 14.4.0]]'''
 +
 
 +
|}
 +
 
 +
== 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
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
−
{| border=1 cellspacing=0 cellpadding=5
 
−
|- bgcolor="#cccccc"
 
−
!width="400px"|Item
 
−
!width="300px"|Author(s)
 
−
!width="400px"|Status
 
−
|- bgcolor="#ccffff"
 
−
!width="400px"|Science updates
 
−
!width="300px"|
 
−
!width="400px"|
 
 
|-valign="top"
 
|-valign="top"
−
|[[TOMAS_aerosol_microphysics#Updates_for_GEOS-Chem_v9-02_public_release|TOMAS parallelization]]
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
−
|Sal Farina (CSU)<br>Jeff Pierce (CSU)<br>[[GEOS-Chem Support Team]]
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
 +
|Emissions
 +
|Simple
 
|
 
|
−
*Implemented in the [[GEOS-Chem v9-02]] public release (03 Mar 2014)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[UCX chemistry mechanism|UCX strat chem mechanism]], includes:
+
|[https://github.com/geoschem/geos-chem/issues/1747 Parameterization of SNA and OM dry size]
−
*[[UCX chemistry mechanism|Stratospheric chemistry]]
+
|Haihui Zhu (WashU)
−
*[[UCX chemistry mechanism|Stratospheric aerosols]]
+
|Aerosols
−
*[[FAST-JX v7.0 photolysis mechanism]]
+
|Medium
−
|UCX: Sebastian Eastham (MIT)<br>Fast-JX: Sebastian Eastham (MIT) and Jingqiu Mao (Princeton)
+
 
|
 
|
−
*Implemented into GEOS-Chem v10-01c
+
*[https://egusphere.copernicus.org/preprints/2022/egusphere-2022-1292/ Zhu et al., EGUsphere, submitted 2023.]
−
**[[GEOS-Chem v10-01 benchmark history#v10-01c|1-month benchmarks]] approved on 29 May 2014
+
*[https://github.com/geoschem/geos-chem/pull/1902 geos-chem PR #1902]
−
**[[GEOS-Chem_v10-01_benchmark_history#v10-01c-Run1|1-year benchmarks]] approved on 26 Jun 2014
+
  
 
|-valign="top"
 
|-valign="top"
−
|[[HEMCO|HEMCO emissions component]]
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
−
|Christoph Keller (Harvard)<br>[[GEOS-Chem Support Team]]<br>GMAO
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
 +
|Emissions
 +
|Medium
 
|
 
|
−
*Implemented into GEOS-Chem v10-01e
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
−
**[[GEOS-Chem v10-01 benchmark history#v10-01e|1-month benchmark]] approved on 07 Nov 2014
+
*Incorporates new met field TSOIL1
−
**[[GEOS-Chem_v10-01_benchmark_history#v10-01e-Run0|1-year benchmark]] approved on 01 Dec 2014
+
 
 
|-valign="top"
 
|-valign="top"
−
|[[Two-way coupling between global and nested GEOS-Chem models]]
+
|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
−
|Jintai Lin (Peking U.)<br>Yingying Yan (Peking U.)
+
|Lizzie Lundgren (Harvard)
 +
|GC-Classic
 +
|Medium
 
|
 
|
−
*Implemented into GEOS-Chem v10-01f
+
*[https://github.com/geoschem/HEMCO/issues/18 hemco issue #18]
−
**[[GEOS-Chem v10-01 benchmark history#v10-01f|1-month benchmark]] approved on 13 Jan 2015
+
  
 
|-valign="top"
 
|-valign="top"
−
|[[EPA/NEI08 North American emissions|NEI 2008 emissions with hourly resolution]]
+
|Capture all trop and PBL height changes in budget diagnostics
−
|Katie Travis (Harvard)
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
 +
|Diagnostics
 +
|Medium
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Summer 2013)
+
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
−
*Slated for inclusion into [[GEOS-Chem v10-01 benchmark history#v10-01h|GEOS-Chem v10-01h]], awaiting validation
+
 
 +
|}
 +
 
 +
== Prioritized and in the queue ==
 +
 
 +
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
 +
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="100px"|Delivery status
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[[MEGAN_biogenic_emissions#Update_to_MEGAN2.1_.28Guenther_et_al..2C_2012.29|Update to MEGAN2.1]]
+
|ALK4 & R4N2 chemistry
−
|Dylan Millet (U. Minnesota)
+
|Jared Brewer (UMN)
 +
|Chemistry
 +
|TBD
 +
|Not delivered
 
|
 
|
−
*Implemented in [[GEOS-Chem v10-01 benchmark history#v10-01h|GEOS-Chem v10-01h]], awaiting validation
+
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
 +
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., 2023.]
  
 
|-valign="top"
 
|-valign="top"
−
|[[EDGAR anthropogenic emissions|Update to EDGAR 4.2 anthropogenic emissions]]
+
|Mass flux regridding fix in MAPL
−
|Meng Li and Qiang Zhang (Tsinghua)<br>Sajeev Philip (Dalhousie)
+
|Tom Clune (GMAO)<br>Seb Eastham (MIT)
 +
|GCHP input regridding
 +
|Medium
 +
|
 
|
 
|
−
*Implemented in [[GEOS-Chem v10-01 benchmark history#v10-01h|GEOS-Chem v10-01h]], awaiting validation
+
*[https://github.com/geoschem/GCHP/issues/377 GCHP Issue #377]
 +
*'''Currently on hold, as the submitted update results in zero diff'''
  
 
|-valign="top"
 
|-valign="top"
−
|[[MASAGE NH3 inventory]]
+
|New version of CEDS at 0.1 deg
−
|Fabien Paulot (NOAA, formerly Harvard)
+
|Dandan Zhang (WashU)
 +
|Emissions
 +
|Simple
 +
|Delivered
 
|
 
|
−
*Implemented in [[GEOS-Chem v10-01 benchmark history#v10-01h|GEOS-Chem v10-01h]], awaiting validation
+
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
 +
*'''Currently on hold while an issue with seasonality in the new CEDS data is being investigated by the authors.'''
 +
 
 +
|}
 +
 
 +
== 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.
 +
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Delivery status
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[[FINN biomass burning emissions]]
+
|KORUS-AQ emissions for East Asia (as an option)
−
|Jenny Fisher (Wollongong)<br>Jingqiu Mao (Princeton)<br>Christine Wiedinmyer (NCAR)
+
|Katie Travis (NASA)
 +
|Emissions
 +
|Simple
 
|
 
|
−
*Implemented in [[GEOS-Chem v10-01 benchmark history#v10-01h|GEOS-Chem v10-01h]], awaiting validation
 
  
 
|-valign="top"
 
|-valign="top"
−
|[http://edgar.jrc.ec.europa.eu/htap_v2/index.php?SECURE=123 HTAP global emissions] and [http://mix.greenresource.cn/ MIX hi-res Asian emissions]
+
|Geologic emission of ethane and propane
−
|Qiang Zhang (Tsinghua U.)
+
|Matthew Rowlinson and Mat Evans(York)
 +
|Emissions
 +
|Delivered<br>Jan 2023
 
|
 
|
−
*Implemented in [[GEOS-Chem v10-01 benchmark history#v10-01h|GEOS-Chem v10-01h]], awaiting validation
+
*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
  
 
|-valign="top"
 
|-valign="top"
−
|UNEP 2010 anthropogenic Hg emissions
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
−
|Shaojie Song (MIT)
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 +
|Science
 +
|Delivered<br>Feb 2021
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jan 2014)
+
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
−
*Slated for inclusion to [[GEOS-Chem v10-01 benchmark history#v10-01h|GEOS-Chem v10-01h]]
+
  
 
|-valign="top"
 
|-valign="top"
−
|[[Ship_emissions#Updates_to_ship_NOx_chemistry|Updates to ship NOx chemistry]]
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
−
|Chris Holmes (UC Irvine)<br>Geert Vinken (Eindhoven)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
 +
|Emissions
 +
|Delivered<br>Jul 2021
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jun 2014)
+
*Data involves many files- need to think about temporal frequency
−
*Included in [[GEOS-Chem v10-01 benchmark history#v10-01h|GEOS-Chem v10-01h]], awaiting validation
+
  
 
|-valign="top"
 
|-valign="top"
−
|Improve temporal resolution of anthropogenic CO2 sources
+
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
−
|Ray Nassar (Environment Canada)
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
 +
|Chemistry
 +
|Delivered<br>June 2023
 
|
 
|
−
*Slated for inclusion to [[GEOS-Chem v10-01 benchmark history#v10-01i|GEOS-Chem v10-01i]], awaiting validation
+
*[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"
−
|Replace CASA CO2 biosphere climatology with year-specific fluxes
+
|DMS Chemistry
−
|Ray Nassar (Environment Canada)<br>Dylan Jones (U. Toronto)
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
−
|'''''Ray Nassar wrote:'''''
+
|Chemistry
−
:SiB Fluxes are available to replace the old CASA fluxes, courtesy of Janina Messerschmidt et al. New CASA fluxes would also be good, such that the user can select options in the input.geos file.
+
|Not delivered
−
*Slated for inclusion in [[GEOS-Chem v10-01 benchmark history#v10-01i|GEOS-Chem v10-01i]]
+
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Coupling GEOS-Chem with RRTMG|Online Radiative Transfer in GEOS-Chem]]
+
|Organic acids (RCOOH)
−
|David Ridley (MIT)<br>Colette Heald (MIT)
+
|Katie Travis (NASA)
 +
|Chemistry
 +
|Not delivered
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Oct 2013)
 
−
*Slated for inclusion in [[GEOS-Chem v10-01 benchmark history#v10-01i|GEOS-Chem v10-01i]]
 
  
 
|-valign="top"
 
|-valign="top"
−
|NEI 2008 Hg emission inventory
+
|Improve carbon & nitrogen conservation in reactions
−
|Yanxu Zhang (Harvard)
+
|Kelvin Bates (Harvard)
 +
|Chemistry
 +
|Not delivered
 
|
 
|
−
*This update will be added via [[HEMCO]]. It can be lumped w/ other emissions updates (order TBD).
 
−
*Postponed until after the GEOS-Chem v10-01 release.
 
  
 
|-valign="top"
 
|-valign="top"
−
|Historical anthropogenic atmospheric emissions of Hg
+
|Blowing snow sea salt in TOMAS
−
|Bess Corbitt (Harvard)
+
|Betty Croft (Dalhousie)
 +
|Aerosols
 +
|Not delivered
 
|
 
|
−
*Postponed until after the GEOS-Chem v10-01 release.
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[PAN|PAN / Organics]]
+
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
−
|Emily Fischer (CSU)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
 +
|Hg simulation
 +
|Not delivered
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (May 2013)
 
  
 
|-valign="top"
 
|-valign="top"
−
|Subsurface ocean Hg concentration update
+
|WRF-GC Hg simulation
−
|Anne Soerensen (Harvard)
+
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation<br>WRF-GC
 +
|Not delivered
 
|
 
|
−
*Postponed until after the GEOS-Chem v10-01 release.
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[MEGAN_biogenic_emissions#CO2_direct_effect_on_isoprene_emissions|CO2 direct effect on isoprene emissions]]
+
|Updated HgII gas-partical partitioning
−
|Amos Tai (City University of Hong Kong)
+
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
 +
|Hg simulation
 +
|Not delivered
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Nov 2013)
+
*Should be option, not default
−
*Postponed until after the GEOS-Chem v10-01 release.
+
  
 
|-valign="top"
 
|-valign="top"
−
|Arctic Hg cycling
+
|Dry deposition to F90 (readability)
−
|Jenny Fisher (Wollongong)
+
|Chris Holmes (FSU)
 +
|Dry deposition
 +
|Not delivered
 
|
 
|
−
*Code is ready
+
 
−
*Postponed until after the GEOS-Chem v10-01 release.
+
|}
 +
 
 +
== 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"
−
|Criegee intermediate
+
|PPN+hv, PPN+OH
−
|Dylan Millet (U. Minnesota)
+
|Robert Ryan (UCL)
 +
|Chemistry
 
|
 
|
−
*This has already been added to the research version of GEOS-Chem used to produce the SEAC4RS hindcasts
 
−
*Postponed until after the GEOS-Chem v10-01 release.
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Impaction scavenging for hydrophobic BC]]
+
|MBO
−
|Qiaoqiao Wang (Harvard)
+
|Michael Vermeuel (UMN)
 +
|Chemistry
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Nov 2013)
 
−
*Postponed until after the GEOS-Chem v10-01 release.
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Homogeneous IN removal]]
+
|Initial conditions for CH4 correcting background and stratospheric biases
−
|Qiaoqiao Wang (Harvard)
+
|Todd Mooring (Harvard)
 +
|Methane simulation
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Nov 2013)
 
−
*Postponed until after the GEOS-Chem v10-01 release.
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Mineral_dust_aerosols#Surface_chemistry_on_dust|Acid uptake on dust aerosols]]
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
−
|T. Duncan Fairlie (NASA/LARC)
+
|Bob Yantosca (Harvard)
 +
|Aerosols<br>Structural
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]], on hold until post v9-02
+
*Ongoing
−
*Postponed until after the GEOS-Chem v10-01 release.
+
  
 
|-valign="top"
 
|-valign="top"
−
|RRTMG radiative transfer code in [[APM aerosol microphysics]]
+
|Re-binning of off-line sea salt and dust for use in TOMAS
−
|Fangqun Yu (SUNY Albany)
+
|Betty Croft (Dalhousie)
 +
|Aerosols
 
|
 
|
−
*Postponed until after the GEOS-Chem v10-01 release.
 
  
−
|-
+
|-valign="top"
−
|[[POPs simulation#PAH simulation|Updates to PAH code]]
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
−
|Carey Friedman (MIT)<br>Helen Amos (Harvard)
+
|Betty Croft (Dalhousie)
 +
|Aerosols
 
|
 
|
−
*Awaiting delivery of code
 
  
 
|-valign="top"
 
|-valign="top"
−
|VBS SOA option
+
|ML algorithms for bulk aerosols
−
|Rokjin Park (Seoul Nat'l Univ.)
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
 +
|Aerosols
 
|
 
|
−
*Postponed until after the GEOS-Chem v10-01 release.
 
  
−
|-
+
|-valign="top"
−
|Tagged sulfate and nitrate simulation
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
−
|Becky Alexander (U. Washington)
+
|Shixian Zhai (Harvard)
 +
|Aerosols
 
|
 
|
−
*Postponed until after the GEOS-Chem v10-01 release.
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Mineral_dust_aerosols#Improved_dust_size_distribution_scheme|Improved dust size distribution scheme]]
+
|Updates to Hodzic SOA scheme
−
|Li Zhang (Colorado U.)<br>Daven Henze (Colorado U.)
+
|Jared Brewer (Harvard)
 +
|Aerosols
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jan 2014)
 
−
*Postponed until after the GEOS-Chem v10-01 release.
 
  
−
|-bgcolor="#ccffff" valign="top"
+
|-valign="top"
−
!width="400px"|Structural/programming updates for HPC
+
|Automated reduction in isoprene scheme
−
!width="300px"|
+
|Dan Westervelt (Lamont-Doherty)
−
!width="400px"|
+
|Aerosols
−
|-
+
−
|[[Grid-independent GEOS-Chem]]: Packaging ESMF/MAPL
+
−
|[[GEOS-Chem Support Team]]<br>GMAO
+
 
|
 
|
−
*This will be an ongoing process that will occur simultaneously as the above science updates are brought into GEOS-Chem.
 
−
|}
 
  
−
--[[User:Bmy|Bob Y.]] 11:37, 5 March 2015 (EST)
+
|-valign="top"
 +
|Brown carbon chemsitry
 +
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
 +
|Aerosols
 +
|
  
−
=== Ready to go in ===
+
|-valign="top"
 +
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
 +
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
 +
|Convection
 +
|
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|- bgcolor="#cccccc"
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
−
!width="400px"|Item
+
|Jintai Lin (PKU)
−
!width="300px"|Author(s)
+
|Emissions
−
!width="400px"|Status
+
−
|-
+
−
|Coupling to 3D ocean: OFFTRACK
+
−
|Yanxu Zhang (Harvard)
+
 
|
 
|
−
|-
+
*Horizontal resolution: 5km, temporal resolution: JJA mean
−
|Dry deposition updates for Hg simulation
+
*monthly data will be available at a later stage; please contact us
−
|Bess Corbitt (Harvard)
+
 
 +
|-valign="top"
 +
|Updated biomass burning emission factors and species
 +
|Tess Carter (MIT)
 +
|Emissions
 
|
 
|
−
|-
+
 
−
|New Hg soil emissions standard from offline GTMM
+
|-valign="top"
−
|Bess Corbitt (Harvard)
+
|Updated offline sea salt emissions
 +
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
 +
|Emissions
 
|
 
|
−
|-
+
 
−
|Pre- and online processing of emissions
+
|-valign="top"
−
|Qiang Zhang (Tsinghua)<br>Christoph Keller (Harvard)
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
 +
|Sam Silva (MIT)
 +
|Emissions &<br>Science
 
|
 
|
−
|-
+
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
−
|Benchmark procedure for nested model
+
*Needs to be updated to a more recent GEOS-Chem version
−
|[[Nested Model Working Group]]
+
 
 +
|-valign="top"
 +
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
 +
|Bob Yantosca (Harvard)
 +
|Model performance
 
|
 
|
 +
*Ongoing (will be done as time allows)
  
−
|-
+
|-valign="top"
−
|APM v2, synch with v9-02
+
|Assess memory leak in GCHP
−
|Fangqun Yu (SUNY Albany)
+
|Killian Murphy (York)
 +
|Model performance
 
|
 
|
−
|-
+
*NOTE: Most memory leaks in GCHP have been fixed by [https://github.com/geoschem/geos-chem/pull/1353 geoschem/geos-chem PR #1353]. Will wait until MAPL3 to further assess.
−
|Retain native resolution 2D surface winds
+
 
−
|David Ridley (MIT)<br>[[GEOS-Chem Support Team]]
+
|-valign="top"
 +
|Hybrid MPI-OpenMP in GCHP
 +
|Seb Eastham (MIT)<br>Killian Murphy (York)
 +
|Model performance
 
|
 
|
−
|-
+
 
−
|FLEXCHEM
+
|-valign="top"
−
|Mat Evans (York)<br>Mike Long (Harvard)
+
|Improve pressure handling in GCHP advection
 +
|Seb Eastham (MIT)<br>Yuanjian Zhang (WashU)
 +
|GCHP
 
|
 
|
−
*Currently need to add heterogeneous chemistry.
+
 
−
*Looking at Spring 2014 as possible delivery date
+
|-valign="top"
−
|-
+
|Use ExtData2G as default GCHP input module
−
|Develop new coding standards
+
|Lizzie Lundgren (Harvard)
−
|[[GEOS-Chem Support Team]]
+
|GCHP
 +
|Will replace ExtData.rc with yaml file
 +
 
 +
|}
 +
 
 +
== 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"
 +
|Snow / Icy Bromine
 +
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|[[Grid-independent GEOS-Chem]]: Dry deposition
+
|-valign="top"
−
|[[GEOS-Chem Support Team]]<br>GMAO
+
|Monoterpene oxidation scheme
 +
|Jessica Haskins (MIT)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|[[Grid-independent GEOS-Chem]]: NetCDF I/O
+
|-valign="top"
−
|[[GEOS-Chem Support Team]]
+
|Fire related VOCs including furans
 +
|Lu Hu (UMT)<br>Lixu Jin (UMT)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|CMS CO2 ocean fluxes
+
|-valign="top"
−
|Kevin Bowman (JPL)
+
|Extension of UCX into the mesosphere
 +
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Dynamic subsurface ocean
+
|-valign="top"
−
|Helen Amos (Harvard)
+
|Methane flux ingestion
 +
|Eloise Marais (UCL)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Fix for CH4 concentrations after 2008
+
|-valign="top"
−
|Lee Murray (Harvard)
+
|Dust non-sphericity impacts on surface chem and optical properties
 +
|Inderjeet Singh (WashU)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Sub-domain within the nested-grid domain
+
|-valign="top"
−
|Yuxuan Wang (Tsinghua)<br>Lin Zhang (Peking)<br>Jintai Lin (Peking)
+
|Size-resolved stratospheric aerosol
 +
|Seb Eastham (MIT)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Offline satellite simulator tool
+
|-valign="top"
−
|[[Nested Model Working Group]]
+
|Extend aerosol settling
 +
|Eloise Marais (UCL)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Metal catalyzed oxidation of SO2
+
|-valign="top"
−
|Becky Alexander (U. Washington)
+
|Stratospheric aerosol APM
 +
|Fangqun Yu (SUNY)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Sulfate production on aerosol haze
+
|-valign="top"
−
|Yuxuan Wang (Tsinghua)<br>Rokjin Park (Seoul Nat'l Univ.)
+
|Plume-in-grid model
 +
|Hongwei Sun (Harvard)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Diurnal variation of NH3 emissions
+
|-valign="top"
−
|Daven Henze (UC Boulder)
+
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
 +
|Lee Murray (Rochester)
 +
|Emissions
 
|
 
|
−
|-
+
 
−
|Time-varying Arctic parameterizations
+
|-valign="top"
−
|Jenny Fisher (Wollongong)
+
|Seb aircraft emissions beyond recent 2019 update
 +
|Seb Eastham (MIT)
 +
|Emissions
 
|
 
|
−
|-
+
 
−
|Future US emissions inventories of Hg
+
|-valign="top"
−
|Amanda Giang (MIT)
+
|FRP-based fire emsisions for eastern US at 0.2 deg
 +
|Charlie Fite (FSU)
 +
|Emissions
 
|
 
|
−
|-
+
 
−
|Coastal inputs of Hg: Rivers and anthropogenic point sources
+
|-valign="top"
−
|Helen Amos (Harvard)
+
|Hg iodine chemistry
 +
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 
|
 
|
−
|-
+
 
−
|Complete revamp of [[Mercury#GTMM|GTMM]]
+
|-valign="top"
−
|Bess Corbitt (Harvard)
+
|Hg simulation in GCHP
 +
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
 +
|Hg simulation
 
|
 
|
−
|-
+
 
−
|Dust PDF for global simulations
+
|-valign="top"
−
|David Ridley (MIT)
+
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
 +
|Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 
|
 
|
−
|-
+
 
−
|Benchmark for aerosol deposition
+
|-valign="top"
−
|[[Aerosols overview: projects and developments|Aerosols Working Group]]
+
|Dry deposition diagnostics by land cover
 +
|Holly Nowell (FSU)
 +
|Diagnostics
 
|
 
|
−
|-
+
 
−
|Primary marine emissions of OA
+
|-valign="top"
−
|Brett Gantt (NCSU)<br>Matthew Johnson (NASA ARC)
+
|Dry deposition process diagnostics
 +
|Holly Nowell (FSU)
 +
|Diagnostics
 
|
 
|
−
*Manuscript submitted to GMD (Aug 2014)
+
 
−
|-
+
|-valign="top"
−
|[http://acmg.seas.harvard.edu/publications/murray.2013.jgr.pdf Interannual lightning]
+
|Isotope simulation for CO and CH4 in GCHP
−
|Lee Murray (Harvard)
+
|Lee Murray (Rochester)
 +
|Carbon simulation
 
|
 
|
−
*Available for GEOS-4, but still needs to be implemented in GEOS-5
 
−
|}
 
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] 17:45, 19 August 2014 (EDT)
+
|-valign="top"
 +
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
 +
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
 +
|Emissions<br>CH4 simulation
 +
|
  
−
=== Almost there (< 6 months) ===
+
|-valign="top"
 +
|Modularization of aerosols code for interface with GOCART in GEOS
 +
|Christoph Keller (GMAO)
 +
|Structural
 +
|
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|- bgcolor="#cccccc"
+
|Improve load balancing in GCHP
−
!width="400px"|Item
+
|Seb Eastham (MIT)
−
!width="300px"|Author(s)
+
|Model performance
−
!width="400px"|Status
+
−
|-
+
−
|Updates to redox chemistry for Hg simulation
+
−
|Bess Corbitt (Harvard)
+
 
|
 
|
−
|-
+
 
−
|High-resolution regional emissions
+
|-valign="top"
−
|[[Nested Model Working Group]]
+
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
 +
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
 +
|Transport
 
|
 
|
−
|-
+
 
−
|Flexible diagnostic package
+
|-valign="top"
−
|[[GEOS-Chem Support Team]]
+
|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)<br>Fangqun Yu (SUNY-Albany)
 +
|Transport
 
|
 
|
−
|-
+
 
−
|[[Grid-independent GEOS-Chem]]: Convection
+
|-valign="top"
−
|TBD
+
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
−
|[[GEOS-Chem Support Team|GCST]] needs help from community
+
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
−
|-
+
|Transport
−
|[[Grid-independent GEOS-Chem]]: Wet scavenging
+
−
|TBD
+
−
|[[GEOS-Chem Support Team|GCST]] needs help from community
+
−
|-
+
−
|[[Grid-independent GEOS-Chem]]: PBL mixing
+
−
|Sajeev Philip (Dalhousie)<br>Christoph Keller (Harvard)<br>GMAO
+
 
|
 
|
−
|-
+
 
−
|[[Grid-independent GEOS-Chem]]: Transport
+
|-valign="top"
−
|TBD
+
|MAPL version 3
−
|[[GEOS-Chem Support Team|GCST]] needs help from community
+
|Lizzie Lundgren (Harvard)
−
|-
+
|GCHP
−
|3D VOC source for tagged CO simulation and enhanced tagging of secondary CO
+
|Will include History wildcard handling in GCHP
−
|Jenny Fisher (Wollongong)
+
 
−
|
+
 
−
|-
+
|-valign="top"
−
|Satellite diagnostic for XCO2
+
|Migrate benchmark meteorology from MERRA2 to GEOS-IT
−
|Andrew Schuh (CSU)
+
|GCST
−
|
+
|Benchmarking
−
|-
+
−
|Dynamic precision
+
−
|[[GEOS-Chem Support Team]]
+
−
|
+
−
|-
+
−
|Profiling GEOS-Chem
+
−
|TBD
+
−
|
+
−
|-
+
−
|Methylmercury in the surface ocean
+
−
|Anne Soerensen (Harvard)
+
−
|
+
−
|-
+
−
|Recommendations for optimal timesteps
+
−
|Sajeev Philip (Dalhousie)
+
−
|
+
−
|-
+
−
|DMS oxidation scheme updating (DMSO, oxidation by BrO)
+
−
|Tom Breider (Harvard)<br>Becky Alexander (U. Washington)
+
−
|
+
−
|-
+
−
|More options for terrestrial CO2 fluxes
+
−
|Kevin Bowman (JPL)
+
−
|
+
−
|-
+
−
|Merge organics from specialized simulations into the mainline code
+
−
|Dylan Millet (U. Minnesota)
+
 
|
 
|
 +
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] 10:00, 23 January 2014 (EST)
+
== Longer term (12-24 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 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="300px"|Author(s)
+
!width="200px"|Contributor(s)
−
!width="400px"|Status
+
!width="100px"|Model scope
−
|-
+
!width="420px"|Notes and References
−
|Coupling to 3D ocean: MIT ocean GCM
+
 
−
|Yanxu Zhang (Harvard)
+
|-valign="top"
 +
|Updates to Aromatic chemistry
 +
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|[[Python code for GEOS-Chem|Python interface]]
+
|-valign="top"
−
|Beno&icirc;t Bovy (U. Li&egrave;ge-Belgium) + others
+
|Nitrate photolysis
 +
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Uniformity of units
+
|-valign="top"
−
|[[GEOS-Chem Support Team]]
+
|In aerosol chemistry Halogens
 +
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Historical inventory of Hg in products and processes
+
|-valign="top"
−
|Hannah Horowitz (Harvard)
+
|Benchmark box model of GC Chemistry
 +
|Katie Travis (NASA)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Better link/coupling to ocean processes
+
|-valign="top"
−
|[[Chemistry-Climate Working Group]]
+
|Alkyl nitrates Alk7, PHAN
 +
|Katie Travis (NASA)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Better coupling to biogeochemical cycles
+
|-valign="top"
−
|[[Chemistry-Climate Working Group]]
+
|Add stratospheric ozone species to full-chemistry simulations
 +
|Lee Murray (Rochester)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Chemistry feedbacks to vegetation ecosystem
+
|-valign="top"
−
|Amos Tai (MIT)
+
|Perchlorate chemistry
 +
|Yuk Chun Chan (UWAB)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Iodine chemistry
+
|-valign="top"
−
|Tom&aacute;s Sherwen (York)
+
|Explicit heterogeneous sulfate chemistry
 +
|Katie Travis (NASA)<br>Becky Alexander (UT)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Harmonization of aerosol optics (including water uptake)
+
|-valign="top"
−
|David Ridley(MIT)<br>Colette Heald (MIT)<br>Peter Adams (Carnegie Mellon)<br>Fangqun Yu (SUNY Albany)<br>Gabriele Curci (U. L'Aquila)<br>Randall Martin (Dalhousie)
+
|HOx and ozone "emissions" from lightning as option in model to play with
 +
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
 +
|Emissions
 
|
 
|
−
|-
+
 
−
|[[Grid-independent GEOS-Chem]]: Ocean interface
+
|-valign="top"
−
|Yanxu Zhang (Harvard)
+
|Sea salt aerosol from sea ice leads
 +
|Hannah Horowitz (U. Illinois)
 +
|Emissions
 
|
 
|
−
|-
+
 
−
|Updated LAI
+
|-valign="top"
−
|Kevin Bowman (JPL)<br>Folkert Boersma (KNMI)
+
|Drought-stress algorithm
 +
|Wei Li (U. Houston)
 
|
 
|
−
|-
 
−
|Merge dicarbonyl simulation into standard simulation
 
−
|Tzung-May Fu (Peking)
 
 
|
 
|
−
|-
+
 
−
|Global 0.5x0.667 capability for CO2/CH4
+
|-valign="top"
−
|Liang Feng (Edinburgh)<br>Dylan Jones (U. Toronto)
+
|Biomass burning injection height profiles
 +
|Inderjeet Singh (WashU)
 +
|Emissions
 
|
 
|
−
|-
+
 
−
|Dynamic multiple boxes subsurface Arctic Ocean
+
|-valign="top"
−
|Helen Amos (Harvard)<br>Anne Soerensen (Harvard)
+
|OCIM integration
 +
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
 
|
 
|
−
|-
 
−
|[[POPs simulation#PCB simulation|PCB simulation: atmosphere and ocean]]
 
−
|Carey Friedman (MIT)<br>Helen Amos (Harvard)
 
 
|
 
|
−
|-
+
 
−
|Nighttime isoprene chemistry
+
|-valign="top"
−
|Rebecca Schwantes (Caltech)
+
|Updating landcover products in GEOS-Chem
 +
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
 +
|Input data
 
|
 
|
−
|-
+
 
−
|ClNO2
+
|-valign="top"
−
|Mat Evans (York)
+
|Dry deposition physical improvement
 +
|Chris Holmes (FSU)
 +
|Dry deposition
 
|
 
|
−
|-
+
 
−
|Dissolved Fe/Cu
+
|-valign="top"
−
|Matthew Johnson (NCSU)<br>Jingqiu Mao (NOAA/GFDL)
+
|TOMAS WRF-GC in regional Thailand simulation
−
|
+
|Win Trivitayanurak (Chulalongkorn U)
−
|-
+
|Aerosols
−
|UV absorption of organics/brown carbon
+
−
|Rokjin Park (Seoul Nat'l Univ.)
+
−
|
+
−
|-
+
−
|CO-CO2-CH4 simulation
+
−
|Dylan Jones (U. Toronto)<br>Annemarie Fraser (Edinburgh)
+
 
|
 
|
−
|-
 
−
|Updated HCN simulation
 
−
|Dylan Jones (U. Toronto)
 
−
|
 
−
|-
 
−
|[[Adding_Passive_Tracers|Passive tracer module]]
 
−
|Jenny Fisher (Wollongong)
 
−
|
 
−
'''''[mailto:jennyf@uow.edu.au Jenny Fisher] wrote:'''''
 
−
:Passive tracers will not (at this stage) be added as a standard feature of GEOS-Chem, but can be implemented by individual users relatively straightforwardly.  We have added this to the SEAC4RS research version of GEOS-Chem.
 
−
|-
 
−
|Plume in-grid lightning NOx emissions
 
−
|Alicia Gressent (U. Toulouse)
 
−
|
 
−
|}
 
−
 
−
--[[User:Melissa Payer|Melissa Sulprizio]] 10:00, 23 January 2014 (EST)
 
  
−
=== Longer term (12-24 months)===
+
|}
−
 
+
−
TBD
+
−
 
+
−
--[[User:Melissa Payer|Melissa Sulprizio]] 10:00, 23 January 2014 (EST)
+

Latest revision as of 16:59, 30 April 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
Global continental chlorine (pCl and HCl) emissions Bingqing Zhang (Georgia Tech)
Pengfei Liu (Georgia Tech) 		Emissions Simple
Parameterization of SNA and OM dry size Haihui Zhu (WashU) Aerosols Medium
New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa) 		Emissions Medium
Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4 Lizzie Lundgren (Harvard) GC-Classic Medium
Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard) 		Diagnostics 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
ALK4 & R4N2 chemistry Jared Brewer (UMN) Chemistry TBD Not delivered
Mass flux regridding fix in MAPL Tom Clune (GMAO)
Seb Eastham (MIT) 		GCHP input regridding Medium
  • GCHP Issue #377
  • Currently on hold, as the submitted update results in zero diff
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple Delivered
  • geos-chem issue #1745
  • Currently on hold while an issue with seasonality in the new CEDS data is being investigated by the authors.

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
KORUS-AQ emissions for East Asia (as an option) Katie Travis (NASA) Emissions Simple
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
Online H2 chemistry Maria Paula Pérez-Peña (UNSW)
Jenny Fisher (UOW)
Dylan Millet (UMN) 		Chemistry Delivered
June 2023
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
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)
Assess memory leak in GCHP Killian Murphy (York) Model performance
Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT)
Killian Murphy (York) 		Model performance
Improve pressure handling in GCHP advection Seb Eastham (MIT)
Yuanjian Zhang (WashU) 		GCHP
Use ExtData2G as default GCHP input module Lizzie Lundgren (Harvard) GCHP Will replace ExtData.rc with yaml file

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
MAPL version 3 Lizzie Lundgren (Harvard) GCHP Will include History wildcard handling in GCHP


Migrate benchmark meteorology from MERRA2 to GEOS-IT GCST Benchmarking

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
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