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

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(→‎List of priorities as of March 2015)
(→‎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/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 April 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]]'''
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|}
−
|- bgcolor="#cccccc"
+
 
−
!width="400px"|Item
+
== Feature integration in progress ==
−
!width="300px"|Author(s)
+
 
−
!width="400px"|Status
+
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.
−
|- bgcolor="#ccffff"
+
 
−
!width="400px"|Science updates
+
{| border=1 cellspacing=0 cellpadding=5  
−
!width="300px"|
+
|-bgcolor="#CCCCCC"
−
!width="400px"|
+
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[[EPA/NEI08 North American emissions|NEI 2008 emissions with hourly resolution]]
+
|GCHP carbon simulation
−
|Katie Travis (Harvard)
+
|Melissa Sulprizio (Harvard)<br>Bob Yantosca (Harvard)
 +
|Carbon
 +
|Medium
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Summer 2013)
+
*[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"
−
|UNEP 2010 anthropogenic Hg emissions
+
|KORUS-AQ emissions for East Asia (as an option)
−
|Shaojie Song (MIT)
+
|Katie Travis (NASA)
 +
|Emissions
 +
|Simple
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jan 2014)
 
  
 
|-valign="top"
 
|-valign="top"
−
|NEI 2008 Hg emission inventory
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
−
|Yanxu Zhang (Harvard)
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
 +
|Emissions
 +
|Simple
 
|
 
|
−
*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
+
|New version of CEDS at 0.1 deg
−
|Bess Corbitt (Harvard)
+
|Dandan Zhang (WashU)
 +
|Emissions
 +
|Simple
 
|
 
|
−
*Postponed until after the GEOS-Chem v10-01 release.
+
*[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'''
  
 
|-valign="top"
 
|-valign="top"
−
|[[PAN|PAN / Organics]]
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
−
|Emily Fischer (CSU)
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
 +
|Emissions
 +
|Medium
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (May 2013)
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-valign="top"
−
|Subsurface ocean Hg concentration update
+
|Remove differences in GC-Classic when breaking up runs in time
−
|Anne Soerensen (Harvard)
+
|Lizzie Lundgren (Harvard)
 +
|GC-Classic
 +
|Medium
 
|
 
|
−
*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]]
+
|GCHP advection diagnostics
−
|Amos Tai (City University of Hong Kong)
+
|Lizzie Lundgren (Harvard)
 +
|GCHP diagnostics
 +
|Simple
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Nov 2013)
+
*[https://github.com/geoschem/GCHP/pull/395 gchp PR #395]
−
*Postponed until after the GEOS-Chem v10-01 release.
+
  
 
|-valign="top"
 
|-valign="top"
−
|Arctic Hg cycling
+
|Only convert units for species that need it
−
|Jenny Fisher (Wollongong)
+
|Bob Yantosca (Harvard)
 +
|Unit conversions
 +
|Medium
 
|
 
|
−
*Code is ready
+
*[https://github.com/geoschem/geos-chem/pull/2072 geos-chem PR #2072]
−
*Postponed until after the GEOS-Chem v10-01 release.
+
*'''This update breaks TOMAS, further development is needed'''
 +
 
 +
|}
 +
 
 +
== 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"
−
|Criegee intermediate
+
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
−
|Dylan Millet (U. Minnesota)
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
 +
|Chemistry
 +
|TBD
 +
|Delivered<br>June 2023
 
|
 
|
−
*This has already been added to the research version of GEOS-Chem used to produce the SEAC4RS hindcasts
+
*[https://acp.copernicus.org/articles/22/12367/2022/acp-22-12367-2022.html Pérez-Peña, M.P. et al., ACP, 2022.]
−
*Postponed until after the GEOS-Chem v10-01 release.
+
*Implemented in v12.5, needs to be brought up to current version
  
 
|-valign="top"
 
|-valign="top"
−
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Impaction scavenging for hydrophobic BC]]
+
|ALK4 & R4N2 chemistry
−
|Qiaoqiao Wang (Harvard)
+
|Jared Brewer (UMN)
 +
|Chemistry
 +
|TBD
 +
|Not delivered
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Nov 2013)
+
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
−
*Postponed until after the GEOS-Chem v10-01 release.
+
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., submitted 2023.]
  
 
|-valign="top"
 
|-valign="top"
−
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Homogeneous IN removal]]
+
|[https://github.com/geoschem/geos-chem/pull/1983 Updated gravitational settling, dry mass-weighted mean diameters and hygroscopic growth in aerosol dry deposition]
−
|Qiaoqiao Wang (Harvard)
+
|Yanshun Li (WashU)
 +
|Aerosols
 +
|Simple
 +
|Delivered<br>Oct 2023
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Nov 2013)
+
*[https://acp.copernicus.org/articles/23/12525/2023/acp-23-12525-2023.html Li et al., ACP, 2023.]
−
*Postponed until after the GEOS-Chem v10-01 release.
+
*[https://github.com/geoschem/geos-chem/pull/1983 geos-chem PR #1983]
 +
* '''Waiting on code updates from developer'''
  
 
|-valign="top"
 
|-valign="top"
−
|[[Mineral_dust_aerosols#Surface_chemistry_on_dust|Acid uptake on dust aerosols]]
+
|Mass flux regridding fix in MAPL
−
|T. Duncan Fairlie (NASA/LARC)
+
|Lizzie Lundgren (Harvard)<br>Seb Eastham (MIT)
 +
|GCHP input regridding
 +
|Medium
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]], on hold until post v9-02
+
|
−
*Postponed until after the GEOS-Chem v10-01 release.
+
*[https://github.com/GEOS-ESM/MAPL/pull/2056 GEOS-ESM/MAPL PR #2056]
  
 
|-valign="top"
 
|-valign="top"
−
|RRTMG radiative transfer code in [[APM aerosol microphysics]]
+
|[https://github.com/geoschem/geos-chem/issues/1747 Parameterization of SNA and OM dry size]
−
|Fangqun Yu (SUNY Albany)
+
|Haihui Zhu (WashU)
 +
|Aerosols
 +
|Medium
 +
|Delivered<br>Aug 2023
 
|
 
|
−
*Postponed until after the GEOS-Chem v10-01 release.
+
*[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'''
  
−
|-
+
|-valign="top"
−
|[[POPs simulation#PAH simulation|Updates to PAH code]]
+
|Capture all trop and PBL height changes in budget diagnostics
−
|Carey Friedman (MIT)<br>Helen Amos (Harvard)
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
 +
|Diagnostics
 +
|Medium
 +
|
 
|
 
|
−
*Awaiting delivery of code
+
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
 +
 
 +
|}
 +
 
 +
== 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"
−
|VBS SOA option
+
|Geologic emission of ethane and propane
−
|Rokjin Park (Seoul Nat'l Univ.)
+
|Matthew Rowlinson and Mat Evans(York)
 +
|Emissions
 +
|Delivered<br>Jan 2023
 
|
 
|
−
*Postponed until after the GEOS-Chem v10-01 release.
+
*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"
−
|Tagged sulfate and nitrate simulation
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
−
|Becky Alexander (U. Washington)
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 +
|Science
 +
|Delivered<br>Feb 2021
 
|
 
|
−
*Postponed until after the GEOS-Chem v10-01 release.
+
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
  
 
|-valign="top"
 
|-valign="top"
−
|[[Mineral_dust_aerosols#Improved_dust_size_distribution_scheme|Improved dust size distribution scheme]]
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
−
|Li Zhang (Colorado U.)<br>Daven Henze (Colorado U.)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
 +
|Emissions
 +
|Delivered<br>Jul 2021
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jan 2014)
+
*Data involves many files- need to think about temporal frequency
−
*Postponed until after the GEOS-Chem v10-01 release.
+
  
−
|-bgcolor="#ccffff" valign="top"
+
|-valign="top"
−
!width="400px"|Structural/programming updates for HPC
+
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
−
!width="300px"|  
+
|Shixian Zhai (Harvard)
−
!width="400px"|
+
|Emissions
−
|-
+
|Delivered
−
|[[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.
+
*Need permission from Qiang Zhang (Tsinghua U.) to distribute data
−
|}
+
  
−
--[[User:Bmy|Bob Y.]] 11:37, 5 March 2015 (EST)
+
|-valign="top"
 +
|DMS Chemistry
 +
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
 +
|Chemistry
 +
|Not delivered
 +
|
  
−
=== Ready to go in ===
+
|-valign="top"
 +
|Organic acids (RCOOH)
 +
|Katie Travis (NASA)
 +
|Chemistry
 +
|Not delivered
 +
|
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|- bgcolor="#cccccc"
+
|Improve carbon & nitrogen conservation in reactions
−
!width="400px"|Item
+
|Kelvin Bates (Harvard)
−
!width="300px"|Author(s)
+
|Chemistry
−
!width="400px"|Status
+
|Not delivered
−
|-
+
−
|Coupling to 3D ocean: OFFTRACK
+
−
|Yanxu Zhang (Harvard)
+
 
|
 
|
−
|-
+
 
−
|Dry deposition updates for Hg simulation
+
|-valign="top"
−
|Bess Corbitt (Harvard)
+
|Blowing snow sea salt in TOMAS
 +
|Betty Croft (Dalhousie)
 +
|Aerosols
 +
|Not delivered
 
|
 
|
−
|-
+
 
−
|New Hg soil emissions standard from offline GTMM
+
|-valign="top"
−
|Bess Corbitt (Harvard)
+
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
 +
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
 +
|Hg simulation
 +
|Not delivered
 
|
 
|
−
|-
+
 
−
|Pre- and online processing of emissions
+
|-valign="top"
−
|Qiang Zhang (Tsinghua)<br>Christoph Keller (Harvard)
+
|WRF-GC Hg simulation
 +
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation<br>WRF-GC
 +
|Not delivered
 
|
 
|
−
|-
+
 
−
|Benchmark procedure for nested model
+
|-valign="top"
−
|[[Nested Model Working Group]]
+
|Updated HgII gas-partical partitioning
 +
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
 +
|Hg simulation
 +
|Not delivered
 
|
 
|
 +
*Should be option, not default
  
−
|-
+
|-valign="top"
−
|APM v2, synch with v9-02
+
|Dry deposition to F90 (readability)
−
|Fangqun Yu (SUNY Albany)
+
|Chris Holmes (FSU)
 +
|Dry deposition
 +
|Not delivered
 
|
 
|
−
|-
+
 
−
|Retain native resolution 2D surface winds
+
|}
−
|David Ridley (MIT)<br>[[GEOS-Chem Support Team]]
+
 
 +
== 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"
 +
|Replace ISORROPIA with [https://gmd.copernicus.org/preprints/gmd-2023-159/gmd-2023-159.pdf HTEPv1.0]
 +
|Seb Eastham (MIT)<br>Lizzie Lundgren (Harvard)
 +
|Aerosol thermodynamics
 
|
 
|
−
|-
+
*Will be git submodule
−
|FLEXCHEM
+
 
−
|Mat Evans (York)<br>Mike Long (Harvard)
+
|-valign="top"
 +
|PPN+hv, PPN+OH
 +
|Robert Ryan (UCL)
 +
|Chemistry
 
|
 
|
−
*Currently need to add heterogeneous chemistry.
+
 
−
*Looking at Spring 2014 as possible delivery date
+
|-valign="top"
−
|-
+
|MBO
−
|Develop new coding standards
+
|Michael Vermeuel (UMN)
−
|[[GEOS-Chem Support Team]]
+
|Chemistry
 
|
 
|
−
|-
+
 
−
|[[Grid-independent GEOS-Chem]]: Dry deposition
+
|-valign="top"
−
|[[GEOS-Chem Support Team]]<br>GMAO
+
|Initial conditions for CH4 correcting background and stratospheric biases
 +
|Todd Mooring (Harvard)
 +
|Methane simulation
 
|
 
|
−
|-
+
 
−
|[[Grid-independent GEOS-Chem]]: NetCDF I/O
+
|-valign="top"
−
|[[GEOS-Chem Support Team]]
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
 +
|Bob Yantosca (Harvard)
 +
|Aerosols<br>Structural
 
|
 
|
−
|-
+
*Ongoing
−
|CMS CO2 ocean fluxes
+
 
−
|Kevin Bowman (JPL)
+
|-valign="top"
 +
|Re-binning of off-line sea salt and dust for use in TOMAS
 +
|Betty Croft (Dalhousie)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Dynamic subsurface ocean
+
|-valign="top"
−
|Helen Amos (Harvard)
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
 +
|Betty Croft (Dalhousie)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Fix for CH4 concentrations after 2008
+
|-valign="top"
−
|Lee Murray (Harvard)
+
|ML algorithms for bulk aerosols
 +
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Sub-domain within the nested-grid domain
+
|-valign="top"
−
|[[Nested Model Working Group]]
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
 +
|Shixian Zhai (Harvard)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Offline satellite simulator tool
+
|-valign="top"
−
|[[Nested Model Working Group]]
+
|Updates to Hodzic SOA scheme
 +
|Jared Brewer (Harvard)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Metal catalyzed oxidation of SO2
+
|-valign="top"
−
|Becky Alexander (U. Washington)
+
|Automated reduction in isoprene scheme
 +
|Dan Westervelt (Lamont-Doherty)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Sulfate production on aerosol haze
+
|-valign="top"
−
|Yuxuan Wang (Tsinghua)<br>Rokjin Park (Seoul Nat'l Univ.)
+
|Brown carbon chemsitry
 +
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Diurnal variation of NH3 emissions
+
|-valign="top"
−
|Daven Henze (UC Boulder)
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
 +
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
 +
|Convection
 
|
 
|
−
|-
+
 
−
|Time-varying Arctic parameterizations
+
|-valign="top"
−
|Jenny Fisher (Wollongong)
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
 +
|Jintai Lin (PKU)
 +
|Emissions
 
|
 
|
−
|-
+
*Horizontal resolution: 5km, temporal resolution: JJA mean
−
|Future US emissions inventories of Hg
+
*monthly data will be available at a later stage; please contact us
−
|Amanda Giang (MIT)
+
 
 +
|-valign="top"
 +
|Updated biomass burning emission factors and species
 +
|Tess Carter (MIT)
 +
|Emissions
 
|
 
|
−
|-
+
 
−
|Coastal inputs of Hg: Rivers and anthropogenic point sources
+
|-valign="top"
−
|Helen Amos (Harvard)
+
|Updated offline sea salt emissions
 +
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
 +
|Emissions
 
|
 
|
−
|-
+
 
−
|Complete revamp of [[Mercury#GTMM|GTMM]]
+
|-valign="top"
−
|Bess Corbitt (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]
−
|Dust PDF for global simulations
+
*Needs to be updated to a more recent GEOS-Chem version
−
|David Ridley (MIT)
+
 
 +
|-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)
−
|Benchmark for aerosol deposition
+
 
−
|[[Aerosols overview: projects and developments|Aerosols Working Group]]
+
|-valign="top"
 +
|Retire all BPCH diagnostics
 +
|Bob Yantosca (Harvard)
 +
|Diagnostics
 
|
 
|
−
|-
+
*Can be done following the [https://github.com/geoschem/geos-chem/pull/1569 TOMAS update for GCHP]
−
|Primary marine emissions of OA
+
 
−
|Brett Gantt (NCSU)<br>Matthew Johnson (NASA ARC)
+
|-valign="top"
 +
|Assess memory leak in GCHP
 +
|Killian Murphy (York)
 +
|Model performance
 
|
 
|
−
*Manuscript submitted to GMD (Aug 2014)
+
*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.
−
|-
+
 
−
|[http://acmg.seas.harvard.edu/publications/murray.2013.jgr.pdf Interannual lightning]
+
|-valign="top"
−
|Lee Murray (Harvard)
+
|Hybrid MPI-OpenMP in GCHP
 +
|Seb Eastham (MIT)<br>Killian Murphy (York)
 +
|Model performance
 
|
 
|
−
*Available for GEOS-4, but still needs to be implemented in GEOS-5
+
 
 +
|-valign="top"
 +
|Improve run directory templating and creation with init_rd.sh and shared directories
 +
|Jourdan He (WashU)
 +
|Run directories
 +
|
 +
 
 +
|-valign="top"
 +
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
 +
|GCST?
 +
|Documentation
 +
|
 +
 
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] 17:45, 19 August 2014 (EDT)
+
== Over the horizon (6-12 months) ==
  
−
=== Almost there (< 6 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="300px"|Author(s)
+
!width="200px"|Contributor(s)
−
!width="400px"|Status
+
!width="100px"|Model scope
−
|-
+
!width="420px"|Notes and References
−
|Updates to redox chemistry for Hg simulation
+
 
−
|Bess Corbitt (Harvard)
+
|-valign="top"
 +
|Snow / Icy Bromine
 +
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|High-resolution regional emissions
+
|-valign="top"
−
|[[Nested Model Working Group]]
+
|Monoterpene oxidation scheme
 +
|Jessica Haskins (MIT)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Flexible diagnostic package
+
|-valign="top"
−
|[[GEOS-Chem Support Team]]
+
|Fire related VOCs including furans
 +
|Lu Hu (UMT)<br>Lixu Jin (UMT)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|[[Grid-independent GEOS-Chem]]: Convection
+
|-valign="top"
−
|TBD
+
|Extension of UCX into the mesosphere
−
|[[GEOS-Chem Support Team|GCST]] needs help from community
+
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
−
|-
+
|Chemistry
−
|[[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
+
|Methane flux ingestion
−
|[[GEOS-Chem Support Team|GCST]] needs help from community
+
|Eloise Marais (UCL)
−
|-
+
|Chemistry
−
|3D VOC source for tagged CO simulation and enhanced tagging of secondary CO
+
−
|Jenny Fisher (Wollongong)
+
 
|
 
|
−
|-
+
 
−
|Satellite diagnostic for XCO2
+
|-valign="top"
−
|Andrew Schuh (CSU)
+
|Dust non-sphericity impacts on surface chem and optical properties
 +
|Inderjeet Singh (WashU)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Dynamic precision
+
|-valign="top"
−
|[[GEOS-Chem Support Team]]
+
|Size-resolved stratospheric aerosol
 +
|Seb Eastham (MIT)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Profiling GEOS-Chem
+
|-valign="top"
−
|TBD
+
|Extend aerosol settling
 +
|Eloise Marais (UCL)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Methylmercury in the surface ocean
+
|-valign="top"
−
|Anne Soerensen (Harvard)
+
|Stratospheric aerosol APM
 +
|Fangqun Yu (SUNY)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Recommendations for optimal timesteps
+
|-valign="top"
−
|Sajeev Philip (Dalhousie)
+
|Plume-in-grid model
 +
|Hongwei Sun (Harvard)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|DMS oxidation scheme updating (DMSO, oxidation by BrO)
+
|-valign="top"
−
|Tom Breider (Harvard)<br>Becky Alexander (U. Washington)
+
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
 +
|Lee Murray (Rochester)
 +
|Emissions
 
|
 
|
−
|-
+
 
−
|More options for terrestrial CO2 fluxes
+
|-valign="top"
−
|Kevin Bowman (JPL)
+
|Seb aircraft emissions beyond recent 2019 update
 +
|Seb Eastham (MIT)
 +
|Emissions
 
|
 
|
−
|-
+
 
−
|Merge organics from specialized simulations into the mainline code
+
|-valign="top"
−
|Dylan Millet (U. Minnesota)
+
|FRP-based fire emsisions for eastern US at 0.2 deg
 +
|Charlie Fite (FSU)
 +
|Emissions
 
|
 
|
−
|}
 
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] 10:00, 23 January 2014 (EST)
+
|-valign="top"
 +
|Hg iodine chemistry
 +
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 +
|
  
−
=== Over the horizon (6-12 months) ===
+
|-valign="top"
 +
|Hg simulation in GCHP
 +
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
 +
|Hg simulation
 +
|
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|- bgcolor="#cccccc"
+
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
−
!width="400px"|Item
+
|Yanxu Zhang (Nanjing U.)
−
!width="300px"|Author(s)
+
|Hg simulation
−
!width="400px"|Status
+
−
|-
+
−
|Coupling to 3D ocean: MIT ocean GCM
+
−
|Yanxu Zhang (Harvard)
+
 
|
 
|
−
|-
+
 
−
|[[Python code for GEOS-Chem|Python interface]]
+
|-valign="top"
−
|Beno&icirc;t Bovy (U. Li&egrave;ge-Belgium) + others
+
|Dry deposition diagnostics by land cover
 +
|Holly Nowell (FSU)
 +
|Diagnostics
 
|
 
|
−
|-
+
 
−
|Uniformity of units
+
|-valign="top"
−
|[[GEOS-Chem Support Team]]
+
|Dry deposition process diagnostics
 +
|Holly Nowell (FSU)
 +
|Diagnostics
 
|
 
|
−
|-
+
 
−
|Historical inventory of Hg in products and processes
+
|-valign="top"
−
|Hannah Horowitz (Harvard)
+
|Isotope simulation for CO and CH4 in GCHP
 +
|Lee Murray (Rochester)
 +
|Carbon simulation
 
|
 
|
−
|-
+
 
−
|Better link/coupling to ocean processes
+
|-valign="top"
−
|[[Chemistry-Climate Working Group]]
+
|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
 
|
 
|
−
|-
+
 
−
|Better coupling to biogeochemical cycles
+
|-valign="top"
−
|[[Chemistry-Climate Working Group]]
+
|Modularization of aerosols code for interface with GOCART in GEOS
 +
|Christoph Keller (GMAO)
 +
|Structural
 
|
 
|
−
|-
+
 
−
|Chemistry feedbacks to vegetation ecosystem
+
|-valign="top"
−
|Amos Tai (MIT)
+
|Improve load balancing in GCHP
 +
|Seb Eastham (MIT)
 +
|Model performance
 
|
 
|
−
|-
+
 
−
|Iodine chemistry
+
|-valign="top"
−
|Tom&aacute;s Sherwen (York)
+
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
 +
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
 +
|Transport
 
|
 
|
−
|-
+
 
−
|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)
+
|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]]: Ocean interface
+
|-valign="top"
−
|Yanxu Zhang (Harvard)
+
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
 +
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
 +
|Transport
 
|
 
|
−
|-
+
 
−
|Updated LAI
+
|}
−
|Kevin Bowman (JPL)<br>Folkert Boersma (KNMI)
+
 
 +
== 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
 +
|- bgcolor="#cccccc"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
 +
 
 +
|-valign="top"
 +
|Updates to Aromatic chemistry
 +
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Merge dicarbonyl simulation into standard simulation
+
|-valign="top"
−
|Tzung-May Fu (Peking)
+
|Nitrate photolysis
 +
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Global 0.5x0.667 capability for CO2/CH4
+
|-valign="top"
−
|Liang Feng (Edinburgh)<br>Dylan Jones (U. Toronto)
+
|In aerosol chemistry Halogens
 +
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Dynamic multiple boxes subsurface Arctic Ocean
+
|-valign="top"
−
|Helen Amos (Harvard)<br>Anne Soerensen (Harvard)
+
|Benchmark box model of GC Chemistry
 +
|Katie Travis (NASA)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|[[POPs simulation#PCB simulation|PCB simulation: atmosphere and ocean]]
+
|-valign="top"
−
|Carey Friedman (MIT)<br>Helen Amos (Harvard)
+
|Alkyl nitrates Alk7, PHAN
 +
|Katie Travis (NASA)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Nighttime isoprene chemistry
+
|-valign="top"
−
|Rebecca Schwantes (Caltech)
+
|Add stratospheric ozone species to full-chemistry simulations
 +
|Lee Murray (Rochester)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|ClNO2
+
|-valign="top"
−
|Mat Evans (York)
+
|Perchlorate chemistry
 +
|Yuk Chun Chan (UWAB)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Dissolved Fe/Cu
+
|-valign="top"
−
|Matthew Johnson (NCSU)<br>Jingqiu Mao (NOAA/GFDL)
+
|Explicit heterogeneous sulfate chemistry
 +
|Katie Travis (NASA)<br>Becky Alexander (UT)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|UV absorption of organics/brown carbon
+
|-valign="top"
−
|Rokjin Park (Seoul Nat'l Univ.)
+
|HOx and ozone "emissions" from lightning as option in model to play with
 +
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
 +
|Emissions
 
|
 
|
−
|-
+
 
−
|CO-CO2-CH4 simulation
+
|-valign="top"
−
|Dylan Jones (U. Toronto)<br>Annemarie Fraser (Edinburgh)
+
|Sea salt aerosol from sea ice leads
 +
|Hannah Horowitz (U. Illinois)
 +
|Emissions
 
|
 
|
−
|-
+
 
−
|Updated HCN simulation
+
|-valign="top"
−
|Dylan Jones (U. Toronto)
+
|Drought-stress algorithm
 +
|Wei Li (U. Houston)
 
|
 
|
−
|-
 
−
|[[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.
+
|-valign="top"
−
|-
+
|Biomass burning injection height profiles
−
|Plume in-grid lightning NOx emissions
+
|Inderjeet Singh (WashU)
−
|Alicia Gressent (U. Toulouse)
+
|Emissions
 
|
 
|
−
|}
 
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] 10:00, 23 January 2014 (EST)
+
|-valign="top"
 +
|OCIM integration
 +
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
 +
|
 +
|
  
−
=== Longer term (12-24 months)===
+
|-valign="top"
 +
|Updating landcover products in GEOS-Chem
 +
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
 +
|Input data
 +
|
  
−
TBD
+
|-valign="top"
 +
|Dry deposition physical improvement
 +
|Chris Holmes (FSU)
 +
|Dry deposition
 +
|
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] 10:00, 23 January 2014 (EST)
+
|-valign="top"
 +
|TOMAS WRF-GC in regional Thailand simulation
 +
|Win Trivitayanurak (Chulalongkorn U)
 +
|Aerosols
 +
|
 +
 
 +
|}

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
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