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

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(→‎Longer term (12-24 months))
(→‎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 May 2013 ==
+
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]]'''
  
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{| border=1 cellspacing=0 cellpadding=5
+
|}
−
|- bgcolor="#cccccc"
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−
!width="400px"|Item
+
−
!width="300px"|Author(s)
+
−
!width="400px"|Status
+
−
|-
+
−
|[[GEOS-5_issues#Updates_on_GEOS-5_PBL_height_.26_diurnal_variation_of_aerosols|Correction for GEOS-5 PBL heights]]
+
−
|Sajeev Philip (Dalhousie)
+
−
|Approved 16 Oct 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02a|v9-02a]]); awaiting release
+
−
|-
+
−
|[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]]
+
−
|Rynda Hudman (UC Berkeley)<br>Neil Moore (Dalhousie)<br>Bram Maasakkers (Eindhoven)
+
−
|Approved 29 Oct 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02b|v9-02b]]); awaiting release
+
−
|-
+
−
|[[EPA/NEI05_North_American_emissions|EPA/NEI2005 Hg emissions for US]]
+
−
|Lyatt Jaegl&eacute; (U. Washington)
+
−
|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release
+
−
|-
+
−
|[[Mercury#Streets future Hg emissions|Streets future Hg emissions]]
+
−
|Bess Corbitt (Harvard)
+
−
|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release
+
−
|-
+
−
|[[Mercury#Nested-grid Hg simulation over North America|Nested-grid Hg simulation]]
+
−
|Lyatt Jaegl&eacute; (U. Washington)
+
−
|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release
+
−
|-
+
−
|[[Mercury#Updated Hg.280.29 oxidation kinetics|Updated Hg(0) oxidation kinetics]]
+
−
|Bess Corbitt (Harvard)<br>Justin Parrella (Harvard)
+
−
|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release
+
−
|-
+
−
|[[Mercury#Capability to use GEOS-Chem Br.2FBrO fields in Hg simulation|Capability to use GEOS-Chem Br/BrO fields in Hg simulation]]
+
−
|Bess Corbitt (Harvard)<br>Justin Parrella (Harvard)
+
−
|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release
+
−
|-
+
−
|[[POPs simulation|POPs simulation: Polycyclic aromatic hydrocarbons]]
+
−
|Carey Friedman (MIT)
+
−
|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release
+
−
|-
+
−
|[[Updating_standard_chemistry_with_JPL_10-6|Inorganic chemistry updates]]
+
−
|Mat Evans (York)
+
−
|Approved 07 Feb 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02f|v9-02f]]); awaiting release
+
−
|-
+
−
|[[Methyl peroxy nitrate chemistry|Methyl peroxy nitrate (MPN) chemistry]]
+
−
|Ellie Browne (UC Berkeley)
+
−
|Approved 07 Feb 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02f|v9-02f]]); awaiting release
+
−
|-
+
−
|[[New_isoprene_scheme#Update_One_-_RO2.2BHO2_Reaction_Rate|Fix RO2+HO2 rate constant]]
+
−
|Fabien Paulot (Harvard)
+
−
|Approved 22 Mar 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02g|v9-02g]]); awaiting release
+
−
|-
+
−
|[[ChemTelecon20111202|Improvements to isoprene chemistry, standardization of Paulot Scheme]]
+
−
|Fabien Paulot (Harvard)<br>Eloise Marais (Harvard)<br>Jingqiu Mao (NOAA/GFDL)<br>Mat Evans (York)
+
−
|Approved 22 Mar 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02g|v9-02g]]); awaiting release
+
−
|-
+
−
|[[ChemTelecon20111202|Improved HO2 uptake by aerosol]]
+
−
|Jingqiu Mao (NOAA/GFDL)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|Removal of NOx-Ox partitioning
+
−
|[[GEOS-Chem Support Team]]
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|[[ChemTelecon20111202|Inhibition of N2O5 hydrolysis by aerosol nitrate]]
+
−
|Lin Zhang (Peking University)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|[[Grid-Independent_GEOS-Chem:_Chemistry_Component|Grid-independent GEOS-Chem: Chemistry]]
+
−
|[[GEOS-Chem Support Team]]<br>GMAO
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|[[TOMAS_aerosol_microphysics#Update_April_2013|Inline the TOMAS aerosol microphysics code into standard code]]
+
−
|Sal Farina (CSU)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|[[Anthropogenic_emissions#CAC|Updated Canadian NH3 inventory]]
+
−
|Wai-Ho Lo (Dalhousie)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|[[Historical_and_Future_Emissions#RCP_future_emission_scenarios |RCP emission scenarios]]
+
−
|Chris Holmes (UC Irvine)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|EDGAR v4.2 emissions for CH4 simulation
+
−
|Kevin Wecht (Harvard)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|[[Scale factors for anthropogenic emissions|Update anthropogenic scale factors through 2010]]
+
−
|Aaron van Donkelaar (Dalhousie)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|Update to EDGAR 4 anthropogenic emissions
+
−
|Qiang Zhang (Tsinghua)<br>Sajeev Philip (Dalhousie)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|Interannual lightning
+
−
|Lee Murray (Harvard)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|[[Aircraft emissions#MIT aviation emissions inventory|AEIC aircraft emissions inventory]]
+
−
|Sebastian D. Eastham(MIT)<br>Steven Barret (MIT)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|[[EPA/NEI05 North American emissions#Updated NH3 seasonal scaling factors in v9-02|Updated NH3 seasonal scaling factors over the US]]
+
−
|Lin Zhang (Peking University)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|[[Secondary organic aerosols#SOA simulation with semi-volatile POA|Expanded SOA]]
+
−
|Havala Pye (EPA/ORD)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|[[Mineral_dust_aerosols#Surface_chemistry_on_dust|Acid uptake on dust aerosols]]
+
−
|T. Duncan Fairlie (NASA/LARC)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|Cloudwater pH for sulfate formation
+
−
|Becky Alexander (U. Washington)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|Update jv_spec.dat with better representation of OC growth with RH and correction to sulfate optics
+
−
|David Ridley (MIT)<br>Randall Martin (Dalhousie)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|Global simulations with [[GEOS-5.7.2|GEOS-5 "FP"]] data product from GMAO
+
−
|[[GEOS-Chem Support Team]]
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
  
−
*'''''NOTE:''''' The GEOS-5 "FP" product (aka GEOS-5.9.0) is what we will use for the 0.25&deg; x 0.3125&deg; nested simulations.  To run the nested simulations (the 2 items listed below), we also must be able to run the global simulations with this met data product in order to save out transport boundary conditons.
+
== Feature integration in progress ==
−
|-
+
−
|Nested-grid model at 0.25&deg; x 0.3125&deg; resolution
+
−
|Yuxuan Wang (Tsinghua)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|High-resolution emissions for above nested-grid model
+
−
|Yuxuan Wang (Tsinghua)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|Improve temporal resolution of anthropogenic CO2 sources
+
−
|Ray Nassar (Environment Canada)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|-
+
−
|Replace CASA CO2 biosphere climatology with year-specific fluxes
+
−
|Ray Nassar (Environment Canada)<br>Dylan Jones (U. Toronto)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
  
−
'''''Ray Nassar wrote:'''''
+
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.
−
: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.
+
−
|-
+
−
|[[Boundary_layer_mixing#Online_PBL_height_calculation_in_GEOS-Chem|Online PBL height calculation]]
+
−
|Sajeev Philip (Dalhousie)<br>Erica McGrath-Spangler(NASA GSFC)
+
−
|To be included in [[GEOS-Chem v9-02|v9-02]]
+
−
|}
+
  
−
--[[User:Melissa Payer|Melissa Payer]] 16:52, 14 May 2013 (EDT)
+
{| 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
  
−
=== Ready to go in ===
+
|-valign="top"
 +
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
 +
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
 +
|Emissions
 +
|Simple
 +
|
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|- bgcolor="#cccccc"
+
|[https://github.com/geoschem/geos-chem/issues/1747 Parameterization of SNA and OM dry size]
−
!width="400px"|Item
+
|Haihui Zhu (WashU)
−
!width="300px"|Author(s)
+
|Aerosols
−
!width="400px"|Status
+
|Medium
−
|-
+
−
|[[MEGAN_biogenic_emissions#Update_to_MEGAN2.1_.28Guenther_et_al..2C_2012.29|Update to MEGAN2.1]]
+
−
|Dylan Millet (U. Minnesota)
+
 
|
 
|
−
|-
+
*[https://egusphere.copernicus.org/preprints/2022/egusphere-2022-1292/ Zhu et al., EGUsphere, submitted 2023.]
−
|UNEP 2010 anthropogenic Hg emissions
+
*[https://github.com/geoschem/geos-chem/pull/1902 geos-chem PR #1902]
−
|Shaojie Song (MIT)
+
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
 +
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
 +
|Emissions
 +
|Medium
 
|
 
|
−
|-
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
−
|Historical anthropogenic atmospheric emissions of Hg
+
*Incorporates new met field TSOIL1
−
|Bess Corbitt (Harvard)
+
 
 +
|-valign="top"
 +
|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
 +
|Lizzie Lundgren (Harvard)
 +
|GC-Classic
 +
|Medium
 
|
 
|
−
|-
+
*[https://github.com/geoschem/HEMCO/issues/18 hemco issue #18]
−
|Subsurface ocean Hg concentration update
+
 
−
|Anne Soerensen (Harvard)
+
|-valign="top"
 +
|Capture all trop and PBL height changes in budget diagnostics
 +
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
 +
|Diagnostics
 +
|Medium
 
|
 
|
−
|-
+
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
−
|NEI 2008 Hg emission inventory
+
 
−
|Yanxu Zhang (Harvard)
+
|}
 +
 
 +
== 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"
 +
|ALK4 & R4N2 chemistry
 +
|Jared Brewer (UMN)
 +
|Chemistry
 +
|TBD
 +
|Not delivered
 
|
 
|
−
|-
+
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
−
|NEI 2008 emissions with hourly resolution
+
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., 2023.]
−
|Katie Travis (Harvard)
+
 
 +
|-valign="top"
 +
|Mass flux regridding fix in MAPL
 +
|Tom Clune (GMAO)<br>Seb Eastham (MIT)
 +
|GCHP input regridding
 +
|Medium
 
|
 
|
−
|-
 
−
|CO2 direct effect on isoprene emissions
 
−
|Amos Tai (MIT)
 
 
|
 
|
−
|-
+
*[https://github.com/geoschem/GCHP/issues/377 GCHP Issue #377]
−
|PAN/organics
+
*'''Currently on hold, as the submitted update results in zero diff'''
−
|Emily Fischer (Harvard)
+
 
 +
|-valign="top"
 +
|New version of CEDS at 0.1 deg
 +
|Dandan Zhang (WashU)
 +
|Emissions
 +
|Simple
 +
|Delivered
 
|
 
|
−
|-
+
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
−
|Arctic Hg cycling
+
*'''Currently on hold while an issue with seasonality in the new CEDS data is being investigated by the authors.'''
−
|Jenny Fisher (Wollongong)
+
 
 +
|}
 +
 
 +
== 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"
 +
|KORUS-AQ emissions for East Asia (as an option)
 +
|Katie Travis (NASA)
 +
|Emissions
 +
|Simple
 
|
 
|
−
|-
+
 
−
|Criegee intermediate
+
|-valign="top"
−
|Dylan Millet (U. Minnesota)
+
|Geologic emission of ethane and propane
 +
|Matthew Rowlinson and Mat Evans(York)
 +
|Emissions
 +
|Delivered<br>Jan 2023
 
|
 
|
−
|-
+
*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
−
|VBS SOA option
+
 
−
|Rokjin Park (Seoul Nat'l Univ.)
+
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
 +
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 +
|Science
 +
|Delivered<br>Feb 2021
 
|
 
|
−
|-
+
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
−
|Tagged sulfate and nitrate simulation
+
 
−
|Becky Alexander (U. Washington)
+
|-valign="top"
 +
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
 +
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
 +
|Emissions
 +
|Delivered<br>Jul 2021
 
|
 
|
−
|}
+
*Data involves many files- need to think about temporal frequency
  
−
--[[User:Melissa Payer|Melissa Payer]] 16:41, 14 May 2013 (EDT)
+
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
 +
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
 +
|Chemistry
 +
|Delivered<br>June 2023
 +
|
 +
*[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
  
−
=== Almost there (< 6 months) ===
+
|-valign="top"
 +
|DMS Chemistry
 +
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
 +
|Chemistry
 +
|Not delivered
 +
|
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|- bgcolor="#cccccc"
+
|Organic acids (RCOOH)
−
!width="400px"|Item
+
|Katie Travis (NASA)
−
!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)
+
|Improve carbon & nitrogen conservation in reactions
 +
|Kelvin Bates (Harvard)
 +
|Chemistry
 +
|Not delivered
 
|
 
|
−
|-
+
 
−
|New Hg soil emissions standard from offline GTMM
+
|-valign="top"
−
|Bess Corbitt (Harvard)
+
|Blowing snow sea salt in TOMAS
 +
|Betty Croft (Dalhousie)
 +
|Aerosols
 +
|Not delivered
 
|
 
|
−
|-
+
 
−
|Pre- and online processing of emissions
+
|-valign="top"
−
|Qiang Zhang (Tsinghua)<br>Christoph Keller (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
 
|
 
|
−
|-
+
 
−
|MASAGE NH3 emissions
+
|-valign="top"
−
|Fabien Paulot (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
−
|Online GCRT
+
 
−
|David Ridley (MIT)<br>Colette Heald (MIT)
+
|-valign="top"
 +
|Dry deposition to F90 (readability)
 +
|Chris Holmes (FSU)
 +
|Dry deposition
 +
|Not delivered
 
|
 
|
−
|-
+
 
−
|TOMAS parallelization
+
|}
−
|Sal Farina (CSU)<br>Jeff Pierce (CSU)
+
 
 +
== 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"
 +
|PPN+hv, PPN+OH
 +
|Robert Ryan (UCL)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Reduced TOMAS (12/15 bins)
+
|-valign="top"
−
|Sal Farina (CSU)<br>Jeff Pierce (CSU)
+
|MBO
 +
|Michael Vermeuel (UMN)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|APM v2, synch with v9-02
+
|-valign="top"
−
|Fangqun Yu (SUNY Albany)
+
|Initial conditions for CH4 correcting background and stratospheric biases
 +
|Todd Mooring (Harvard)
 +
|Methane simulation
 
|
 
|
−
|-
+
 
−
|Retain native resolution 2D surface winds
+
|-valign="top"
−
|David Ridley (MIT)<br>[[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
−
|FLEXCHEM
+
 
−
|Mat Evans (York)<br>Mike Long (Harvard)
+
|-valign="top"
 +
|Re-binning of off-line sea salt and dust for use in TOMAS
 +
|Betty Croft (Dalhousie)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Develop new coding standards
+
|-valign="top"
−
|[[GEOS-Chem Support Team]]
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
 +
|Betty Croft (Dalhousie)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Unit testing
+
|-valign="top"
−
|[[GEOS-Chem Support Team]]
+
|ML algorithms for bulk aerosols
 +
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|[[Grid-independent GEOS-Chem]]: Dry deposition
+
|-valign="top"
−
|[[GEOS-Chem Support Team]]<br>GMAO
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
 +
|Shixian Zhai (Harvard)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|[[Grid-Independent GEOS-Chem: Emissions Component|Grid-independent GEOS-Chem: Emissions]]
+
|-valign="top"
−
|Christoph Keller (Harvard)<br>[[GEOS-Chem Support Team]]<br>GMAO
+
|Updates to Hodzic SOA scheme
 +
|Jared Brewer (Harvard)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|[[Grid-independent GEOS-Chem]]: NetCDF I/O
+
|-valign="top"
−
|[[GEOS-Chem Support Team]]
+
|Automated reduction in isoprene scheme
 +
|Dan Westervelt (Lamont-Doherty)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|CMS CO2 ocean fluxes
+
|-valign="top"
−
|Kevin Bowman (JPL)
+
|Brown carbon chemsitry
 +
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Dynamic subsurface ocean
+
|-valign="top"
−
|Helen Amos (Harvard)
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
 +
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
 +
|Convection
 
|
 
|
−
|-
+
 
−
|Updates to PAH code
+
|-valign="top"
−
|Carey Friedman (MIT)<br>Helen Amos (Harvard)
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
 +
|Jintai Lin (PKU)
 +
|Emissions
 
|
 
|
−
|-
+
*Horizontal resolution: 5km, temporal resolution: JJA mean
−
|Fast-JX
+
*monthly data will be available at a later stage; please contact us
−
|Sebastian Eastham (MIT)<br>Jingqiu Mao (NOAA/GFDL)
+
 
 +
|-valign="top"
 +
|Updated biomass burning emission factors and species
 +
|Tess Carter (MIT)
 +
|Emissions
 
|
 
|
−
|-
+
 
−
|Fix for CH4 concentrations after 2008
+
|-valign="top"
−
|Lee Murray (Harvard)
+
|Updated offline sea salt emissions
 +
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
 +
|Emissions
 
|
 
|
−
|-
+
 
−
|Two-way nested grid simulation
+
|-valign="top"
−
|Jintai Lin (Peking)
+
|[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]
−
|Sub-domain within the nested-grid domain
+
*Needs to be updated to a more recent GEOS-Chem version
−
|Yuxuan Wang (Tsinghua)<br>Jintai Lin (Peking)
+
 
 +
|-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)
−
|Offline satellite simulator tool
+
 
−
|[[Nested Model Working Group]]
+
|-valign="top"
 +
|Assess memory leak in GCHP
 +
|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.
−
|Metal catalyzed oxidation of SO2
+
 
−
|Becky Alexander (U. Washington)
+
|-valign="top"
 +
|Hybrid MPI-OpenMP in GCHP
 +
|Seb Eastham (MIT)<br>Killian Murphy (York)
 +
|Model performance
 
|
 
|
−
|-
+
 
−
|Sulfate production on aerosol haze
+
|-valign="top"
−
|Yuxuan Wang (Tsinghua)<br>Rokjin Park (Seoul Nat'l Univ.)
+
|Improve pressure handling in GCHP advection
 +
|Seb Eastham (MIT)<br>Yuanjian Zhang (WashU)
 +
|GCHP
 
|
 
|
−
|-
+
 
−
|Diurnal variation of NH3 emissions
+
|-valign="top"
−
|Daven Henze (UC Boulder)
+
|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.
 +
 
 +
{| 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
 
|
 
|
−
|-
+
 
−
|Impaction scavenging for hydrophobic BC
+
|-valign="top"
−
|Qiaoqiao Wang (Harvard)
+
|Monoterpene oxidation scheme
 +
|Jessica Haskins (MIT)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Homogeneous IN removal
+
|-valign="top"
−
|Qiaoqiao Wang (Harvard)
+
|Fire related VOCs including furans
 +
|Lu Hu (UMT)<br>Lixu Jin (UMT)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Time-varying Arctic parameterizations
+
|-valign="top"
−
|Jenny Fisher (Wollongong)
+
|Extension of UCX into the mesosphere
 +
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Future US emissions inventories of Hg
+
|-valign="top"
−
|Amanda Giang (MIT)
+
|Methane flux ingestion
 +
|Eloise Marais (UCL)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Coastal inputs of Hg: Rivers and anthropogenic point sources
+
|-valign="top"
−
|Helen Amos (Harvard)
+
|Dust non-sphericity impacts on surface chem and optical properties
 +
|Inderjeet Singh (WashU)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Complete revamp of [[Mercury#GTMM|GTMM]]
+
|-valign="top"
−
|Bess Corbitt (Harvard)
+
|Size-resolved stratospheric aerosol
 +
|Seb Eastham (MIT)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Dust PDF for global simulations
+
|-valign="top"
−
|David Ridley (MIT)
+
|Extend aerosol settling
 +
|Eloise Marais (UCL)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Stratospheric aerosols
+
|-valign="top"
−
|Sebastian Eastham (MIT)
+
|Stratospheric aerosol APM
 +
|Fangqun Yu (SUNY)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Benchmark for aerosol deposition
+
|-valign="top"
−
|[[Aerosols overview: projects and developments|Aerosols Working Group]]
+
|Plume-in-grid model
 +
|Hongwei Sun (Harvard)
 +
|Chemistry
 
|
 
|
−
|}
 
  
−
--[[User:Melissa Payer|Melissa Payer]] 16:41, 14 May 2013 (EDT)
+
|-valign="top"
 +
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
 +
|Lee Murray (Rochester)
 +
|Emissions
 +
|
  
−
=== Over the horizon (6-12 months) ===
+
|-valign="top"
 +
|Seb aircraft emissions beyond recent 2019 update
 +
|Seb Eastham (MIT)
 +
|Emissions
 +
|
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|- bgcolor="#cccccc"
+
|FRP-based fire emsisions for eastern US at 0.2 deg
−
!width="400px"|Item
+
|Charlie Fite (FSU)
−
!width="300px"|Author(s)
+
|Emissions
−
!width="400px"|Status
+
−
|-
+
−
|Updates to redox chemistry for Hg simulation
+
−
|Bess Corbitt (Harvard)
+
 
|
 
|
−
|-
+
 
−
|High-resolution regional emissions
+
|-valign="top"
−
|[[Nested Model Working Group]]
+
|Hg iodine chemistry
 +
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 
|
 
|
−
|-
+
 
−
|Flexible diagnostic package
+
|-valign="top"
−
|[[GEOS-Chem Support Team]]
+
|Hg simulation in GCHP
 +
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
 +
|Hg simulation
 
|
 
|
−
|-
+
 
−
|[[Grid-independent GEOS-Chem]]: Convection
+
|-valign="top"
−
|TBD
+
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
−
|[[GEOS-Chem Support Team|GCST]] needs help from community
+
|Yanxu Zhang (Nanjing U.)
−
|-
+
|Hg simulation
−
|[[Grid-independent GEOS-Chem]]: Wet scavenging
+
−
|TBD
+
−
|[[GEOS-Chem Support Team|GCST]] needs help from community
+
−
|-
+
−
|[[Grid-independent GEOS-Chem]]: PBL mixing
+
−
|TBD
+
−
|[[GEOS-Chem Support Team|GCST]] needs help from community
+
−
|-
+
−
|[[Grid-independent GEOS-Chem]]: Transport
+
−
|TBD
+
−
|[[GEOS-Chem Support Team|GCST]] needs help from community
+
−
|-
+
−
|[[Grid-independent GEOS-Chem]]: Packaging ESMF/MAPL
+
−
|[[GEOS-Chem Support Team]]<br>GMAO
+
 
|
 
|
−
|-
+
 
−
|3D VOC source for tagged CO simulation and enhanced tagging of secondary CO
+
|-valign="top"
−
|Jenny Fisher (Wollongong)
+
|Dry deposition diagnostics by land cover
 +
|Holly Nowell (FSU)
 +
|Diagnostics
 
|
 
|
−
|-
+
 
−
|Satellite diagnostic for XCO2
+
|-valign="top"
−
|Andrew Schuh (CSU)
+
|Dry deposition process diagnostics
 +
|Holly Nowell (FSU)
 +
|Diagnostics
 
|
 
|
−
|-
+
 
−
|Dynamic precision
+
|-valign="top"
−
|[[GEOS-Chem Support Team]]
+
|Isotope simulation for CO and CH4 in GCHP
 +
|Lee Murray (Rochester)
 +
|Carbon simulation
 
|
 
|
−
|-
+
 
−
|Profiling GEOS-Chem
+
|-valign="top"
−
|TBD
+
|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
 
|
 
|
−
|-
+
 
−
|Methylmercury in the surface ocean
+
|-valign="top"
−
|Anne Soerensen (Harvard)
+
|Modularization of aerosols code for interface with GOCART in GEOS
 +
|Christoph Keller (GMAO)
 +
|Structural
 
|
 
|
−
|-
+
 
−
|Primary marine emissions of OA
+
|-valign="top"
−
|Brett Gantt (NCSU)
+
|Improve load balancing in GCHP
 +
|Seb Eastham (MIT)
 +
|Model performance
 
|
 
|
−
|-
+
 
−
|Recommendations for optimal timesteps
+
|-valign="top"
−
|Sajeev Philip (Dalhousie)
+
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
 +
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
 +
|Transport
 
|
 
|
−
|-
+
 
−
|DMS oxidation scheme updating (DMSO, oxidation by BrO)
+
|-valign="top"
−
|Tom Breider (Harvard)<br>Becky Alexander (U. Washington)
+
|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
 
|
 
|
−
|-
+
 
−
|More options for terrestrial CO2 fluxes
+
|-valign="top"
−
|Kevin Bowman (JPL)
+
|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
 
|
 
|
−
|-
+
 
−
|FINN biomass burning emissions
+
|-valign="top"
−
|Jenny Fisher (Wollongong)
+
|MAPL version 3
−
|
+
|Lizzie Lundgren (Harvard)
−
|-
+
|GCHP
−
|Merge organics from specialized simulations into the mainline code
+
|Will include History wildcard handling in GCHP
−
|Dylan Millet (U. Minnesota)
+
 
 +
 
 +
|-valign="top"
 +
|Migrate benchmark meteorology from MERRA2 to GEOS-IT
 +
|GCST
 +
|Benchmarking
 
|
 
|
 +
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Payer]] 16:41, 14 May 2013 (EDT)
+
== 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="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 interface
+
|-valign="top"
−
|Beno&icirc;t Bovy (U. Li&egrave;ge-Belgium)
+
|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
 
|
 
|
−
|-
+
 
−
|Stratospheric chemistry
+
|-valign="top"
−
|Sebastian Eastham (MIT)
+
|Explicit heterogeneous sulfate chemistry
 +
|Katie Travis (NASA)<br>Becky Alexander (UT)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Iodine chemistry
+
|-valign="top"
−
|Tom&aacute;s Sherwen (York)
+
|HOx and ozone "emissions" from lightning as option in model to play with
 +
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
 +
|Emissions
 
|
 
|
−
|-
+
 
−
|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)
+
|Sea salt aerosol from sea ice leads
 +
|Hannah Horowitz (U. Illinois)
 +
|Emissions
 
|
 
|
−
|-
+
 
−
|[[Grid-independent GEOS-Chem]]: Ocean interface
+
|-valign="top"
−
|Yanxu Zhang (Harvard)
+
|Drought-stress algorithm
 +
|Wei Li (U. Houston)
 
|
 
|
−
|-
 
−
|Updated LAI
 
−
|Kevin Bowman (JPL)<br>Folkert Boersma (KNMI)
 
 
|
 
|
−
|-
+
 
−
|Merge dicarbonyl simulation into standard simulation
+
|-valign="top"
−
|Tzung-May Fu (Peking)
+
|Biomass burning injection height profiles
 +
|Inderjeet Singh (WashU)
 +
|Emissions
 
|
 
|
−
|-
+
 
−
|Global 0.5x0.667 capability for CO2/CH4
+
|-valign="top"
−
|Liang Feng (Edinburgh)<br>Dylan Jones (U. Toronto)
+
|OCIM integration
 +
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
 
|
 
|
−
|-
 
−
|Dynamic multiple boxes subsurface Arctic Ocean
 
−
|Helen Amos (Harvard)<br>Anne Soerensen (Harvard)
 
 
|
 
|
−
|-
+
 
−
|PCB simulation: atmosphere and ocean
+
|-valign="top"
−
|Carey Friedman (MIT)<br>Helen Amos (Harvard)
+
|Updating landcover products in GEOS-Chem
 +
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
 +
|Input data
 
|
 
|
−
|-
+
 
−
|Nighttime isoprene chemistry
+
|-valign="top"
−
|Rebecca Schwantes (Caltech)
+
|Dry deposition physical improvement
 +
|Chris Holmes (FSU)
 +
|Dry deposition
 
|
 
|
−
|-
+
 
−
|ClNO2
+
|-valign="top"
−
|Mat Evans (York)
+
|TOMAS WRF-GC in regional Thailand simulation
 +
|Win Trivitayanurak (Chulalongkorn U)
 +
|Aerosols
 
|
 
|
−
|-
 
−
|Dissolved Fe/Cu
 
−
|Matthew Johnson (NCSU)<br>Jingqiu Mao (NOAA/GFDL)
 
−
|
 
−
|-
 
−
|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.
 
−
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|Plume in-grid lightning NOx emissions
 
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|Alicia Gressent (U. Toulouse)
 
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--[[User:Melissa Payer|Melissa Payer]] 16:41, 14 May 2013 (EDT)
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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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