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

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(Slated for inclusion in v11-02)
(Prioritized and in the queue)
 
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On this page we list the current priorities for GEOS-Chem development. This list was compiled by the user Working Groups at the last [http://acmg.seas.harvard.edu/geos/meetings/2017/index.html International GEOS-Chem Meeting (IGC8)] in May 2017 and will be continuously updated based on code readiness and input from the Working Groups and the Steering Committee.
+
On this page we list the current priorities for GEOS-Chem development. This list is continuously updated based on code readiness and input from the [https://geos-chem.seas.harvard.edu/geos-working-groups Working Groups] and the [https://geos-chem.seas.harvard.edu/geos-steering-cmte Steering Committee]. For history of past releases see the [[GEOS-Chem_versions|GEOS-Chem Versions wiki page]].
  
We also invite you to view our [https://trello.com/board/geos-chem-support-team/4fe36668fc79a1d3540ba80b GEOS-Chem Support Team project management board on Trello.com], which shows the current GCST workflow.
+
== Merged and awaiting release ==
  
== List of priorities as of May 2017 ==
+
See the links below for items merged and awaiting release.
  
The items listed below 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]]'''
  
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. More information on those items can be obtained on the [[GEOS-Chem v11-02]] wiki page.
+
|}
  
{| border=1 cellspacing=0 cellpadding=5
+
== Feature integration in progress ==
|- bgcolor="#cccccc"
+
!width="400px"|Item
+
!width="300px"|Author(s)
+
!width="400px"|Status
+
  
|- bgcolor="#ccffff"
+
Features listed in this table are actively being integrated into GEOS-Chem by the [https://geoschem.github.io/support-team.html GEOS-Chem Support Team]. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.
!colspan="3"|Science updates
+
 
 +
{| 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
  
 
|-valign="top"
 
|-valign="top"
|[[Updates_in_JPL_Publication_15-10|Updating chemistry rate constants based on ''JPL Publication 15-10'']]
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
|Barron Henderson (U. Florida)<br>Mat Evans (U. York)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
 +
|Emissions
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02a|v11-02a]] (pending approval)
 
  
 
|-valign="top"
 
|-valign="top"
|[[PAN|PAN updates (including emissions, deposition, species, chemistry)]]
+
|[https://github.com/geoschem/geos-chem/issues/1747 Parameterization of SNA and OM dry size]
|Emily Fischer (CSU)
+
|Haihui Zhu (WashU)
 +
|Aerosols
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02a|v11-02a]] (pending approval)
+
*[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]
  
 
|-valign="top"
 
|-valign="top"
|[[EPA/NEI11_North_American_emissions#Monthly_mean_emissions|Monthly mean NEI2011 emissions]]
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
|[[GCST]]<br>Katie Travis (Harvard)
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
 +
|Emissions
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02a|v11-02a]] (pending approval)
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
|-bgcolor="#ccffff" valign="top"
+
|-valign="top"
!colspan="3"|Structural/programming updates
+
|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]
  
 
|-valign="top"
 
|-valign="top"
|TBD
+
|Replace ISORROPIA with [https://gmd.copernicus.org/articles/17/2197/2024/ HETPv1.0]
|  
+
|Lizzie Lundgren (Harvard)<br>Seb Eastham (ICL)
 +
|Aerosol thermodynamics
 +
|Medium
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/issues/2235 geos-chem issue #2235]
  
|-bgcolor="#ccffff" valign="top"
+
|-valign="top"
!colspan="3"|Documentation
+
|Only convert units for species that need it
 +
|Bob Yantosca (Harvard)
 +
|Unit conversions
 +
|Medium
 +
|
 +
*[https://github.com/geoschem/geos-chem/pull/2072 geos-chem PR #2072]
  
 
|-valign="top"
 
|-valign="top"
|TBD
+
|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]
  
 
|}
 
|}
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 17:19, 11 May 2017 (UTC)
+
== Prioritized and in the queue ==
  
=== Ready to go in ===
+
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
  
==== Slated for inclusion in v11-02 ====
+
{| border=1 cellspacing=0 cellpadding=5  
 
+
|-bgcolor="#CCCCCC"
The following items were prioritized for inclusion in [[GEOS-Chem v11-02]].
+
!width="200px"|Feature
 
+
!width="200px"|Contributor(s)
{| border=1 cellspacing=0 cellpadding=5
+
!width="100px"|Model scope
|- bgcolor="#cccccc"
+
!width="100px"|Ease of implementation
!width="400px"|Item
+
!width="100px"|Delivery status
!width="250px"|Author(s)
+
!width="300px"|Notes and References
!width="80px"|Type
+
!width="250px"|Status
+
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+
  
 
|-valign="top"
 
|-valign="top"
|Updates to isoprene chemistry, includes:
+
|ALK4 & R4N2 chemistry
*Fast photolysis of carbonyl nitrates
+
|Jared Brewer (UMN)
*Aerosol uptake of organic nitrates
+
|Chemistry
*Nighttime isoprene chemistry
+
|TBD
*Updated organic deposition
+
|Not delivered
*Remove dependence of species drydep on HNO3 drydep
+
|Jenny Fisher (U. Wollongong)<br>Elo&iuml;se Marais (Harvard)<br>Katie Travis (Harvard)<br>Kelvin Bates (Caltech)<br>Rebecca Schwantes(Caltech)
+
|Science
+
 
|
 
|
*Delivered to GCST (Mar 2017)
+
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
*Slated for [[GEOS-Chem v11-02#v11-02c|v11-02c]]
+
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., 2023.]
  
 
|-valign="top"
 
|-valign="top"
|Enhance default GEOS-Chem simple SOA
+
|Mass flux regridding fix in MAPL
|Aerosol Working Group Chairs
+
|Tom Clune (GMAO)<br>Seb Eastham (MIT)
|Science
+
|GCHP input regridding
 +
|Medium
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02c|v11-02c]]
+
|
 +
*[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"
|Add aqueous isoprene uptake to SOA scheme
+
|New version of CEDS at 0.1 deg
|Eloise Marais (Harvard)
+
|Dandan Zhang (WashU)
|Science
+
|Emissions
 +
|Simple
 +
|Delivered
 
|
 
|
*Delivered to GCST (Jul 2016)
+
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
*Slated for [[GEOS-Chem v11-02#v11-02c|v11-02c]]
+
*'''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"
|Carbon balance (fix C creation)
+
|KORUS-AQ emissions for East Asia (as an option)
|Sarah Safieddine (MIT)
+
|Katie Travis (NASA)
|Bug fix
+
|Emissions
 +
|Simple
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02c|v11-02c]]
 
  
 
|-valign="top"
 
|-valign="top"
|Other N, C, etc. balance
+
|Geologic emission of ethane and propane
|Barron Henderson (EPA)
+
|Matthew Rowlinson and Mat Evans(York)
|External script
+
|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
  
 
|-valign="top"
 
|-valign="top"
|Halogen chemistry updates
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
|Tom&aacute;s Sherwen (York)<br>Johan Schmidt (Harvard)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Science
 
|Science
 +
|Delivered<br>Feb 2021
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02d|v11-02d]]
+
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
  
 
|-valign="top"
 
|-valign="top"
|Sulfur oxidation by reactive halogens
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
|Qianjie Chen (UW)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
|Science
+
|Emissions
 +
|Delivered<br>Jul 2021
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02d|v11-02d]]
+
*Data involves many files- need to think about temporal frequency
*Implement as part of halogen chemistry
+
  
 
|-valign="top"
 
|-valign="top"
|[[Aerosol_optical_properties#Add_BC_absorption_enhancement_factor|Update density of BC to 1.8 and add absorption enhancement factor in input.geos]]
+
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
|Xuan Wang (MIT)
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
|Science
+
|Chemistry
 +
|Delivered<br>June 2023
 
|
 
|
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jan 2016)
+
*[https://acp.copernicus.org/articles/22/12367/2022/acp-22-12367-2022.html Pérez-Peña, M.P. et al., ACP, 2022.]
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
*Implemented in v12.5, needs to be brought up to current version
  
 
|-valign="top"
 
|-valign="top"
|[[NOx-Ox-HC-aerosol#Monthly mean surface distributions|Monthly mean surface methane distributions]]
+
|DMS Chemistry
|Lee Murray (NASA GISS/LDEO)
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
 
  
 
|-valign="top"
 
|-valign="top"
|[[UCX_chemistry_mechanism#v11-02|Remove initial stratospheric 2D mixing ratio option]]
+
|Organic acids (RCOOH)
|Seb Eastham (Harvard)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
 
  
 
|-valign="top"
 
|-valign="top"
|[[UCX_chemistry_mechanism#UCX_stratospheric_water_boundary_condition_update|UCX stratospheric water boundary condition update]]
+
|Improve carbon & nitrogen conservation in reactions
|Chris Holmes (UC Irvine)<br>Seb Eastham (Harvard)
+
|Kelvin Bates (Harvard)
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
 
*Delivered to GCST (Jan 2017)
 
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate and nitrate simulation]], including
+
|Blowing snow sea salt in TOMAS
*[[Sulfate_aerosols#Metal_catalyzed_oxidation_of_SO2|Metal catalyzed oxidation of SO2]] (as a switch)
+
|Betty Croft (Dalhousie)
|Becky Alexander (UW)
+
|Aerosols
|Science
+
|Not delivered
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
 
  
 
|-valign="top"
 
|-valign="top"
|[[Rn-Pb-Be_simulation#Radon_flux_diagnostic|Radon flux diagnostic]]
+
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
|[[GCST]]
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
|Benchmarking
+
|Hg simulation
 +
|Not delivered
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
 
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Mercury updates
 
  
 
|-valign="top"
 
|-valign="top"
|Updates to Hg chemistry from Horowitz et al. (2017)
+
|WRF-GC Hg simulation
|Hannah Horowitz (U. Washington)<br>Colin Thackray (Harvard)<br>Rebecca Stern (Harvard)
+
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
|Science
+
|Hg simulation<br>WRF-GC
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Year 2010 ocean Hg boundary conditions from MITgcm
+
|Updated HgII gas-partical partitioning
|Hannah Horowitz (Harvard)
+
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
|Science
+
|Hg simulation
 +
|Not delivered
 
|
 
|
 +
*Should be option, not default
  
 
|-valign="top"
 
|-valign="top"
|Historical products emissions from Zhang et al. (2016), should become default
+
|Dry deposition to F90 (readability)
|Colin Thackray (Harvard)
+
|Chris Holmes (FSU)
|Science
+
|Dry deposition
 +
|Not delivered
 
|
 
|
  
|-
+
|}
!colspan="4" bgcolor="#CCFFFF"|Transport updates
+
  
|-valign="top"
+
== Almost there (< 6 months) ==
|GEOS resolution & subgrid convection
+
|Karen Yu (Harvard)
+
|Science
+
|
+
  
|-
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
!colspan="4" bgcolor="#CCFFFF"|Emission updates
+
 
 +
{|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"
|OMI-based Volcanic emissions 2005-2012
+
|PPN+hv, PPN+OH
|Jun Wang (U. Iowa)
+
|Robert Ryan (UCL)
|Science
+
|Chemistry
 
|
 
|
*Delivered to Christoph Keller?
 
  
 
|-valign="top"
 
|-valign="top"
|[[EDGAR_v4.3_anthropogenic_emissions|EDGAR v4.3.1 emissions]]
+
|MBO
|Chi Li (Dalhousie)
+
|Michael Vermeuel (UMN)
|Science
+
|Chemistry
 
|
 
|
*Delivered to GCST (Nov 2016)
 
  
 
|-valign="top"
 
|-valign="top"
|EPA-derived BC/OA emissions over US (1990-2012)
+
|Initial conditions for CH4 correcting background and stratospheric biases
|David Ridley (MIT)<br>Chi Li (Dalhousie)
+
|Todd Mooring (Harvard)
|Science
+
|Methane simulation
 
|
 
|
*Need to coordinate between two versions
 
  
 
|-valign="top"
 
|-valign="top"
|[[CAC_anthropogenic_emissions#Historical_emissions|Historical CAC emissions]]
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
|Chi Li (Dalhousie)
+
|Bob Yantosca (Harvard)
|Science
+
|Aerosols<br>Structural
 
|
 
|
*Delivered to GCST (Nov 2016)
+
*Ongoing
  
 
|-valign="top"
 
|-valign="top"
|Ammonia emissions from Arctic birds
+
|Re-binning of off-line sea salt and dust for use in TOMAS
 
|Betty Croft (Dalhousie)
 
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
|Fabien Paulot (NOAA/GFDL)
+
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 
|
 
|
*Data files delivered to GCST (Jan 2016)
 
*Needs to be implemented via HEMCO
 
  
 
|-valign="top"
 
|-valign="top"
|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
+
|ML algorithms for bulk aerosols
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
|Science
+
|Aerosols
 
|
 
|
*Implemented in v9-01-01
 
*Needs to be added as a HEMCO extension
 
  
 
|-valign="top"
 
|-valign="top"
|[[MASAGE_NH3_inventory|MASAGE inventory in HEMCO as default]]
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
+
|Shixian Zhai (Harvard)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
+
|Updates to Hodzic SOA scheme
|Amos Tai (CUHK)
+
|Jared Brewer (Harvard)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Radon emission update
+
|Automated reduction in isoprene scheme
|Bo Zhang (NIA/NASA Langley)
+
|Dan Westervelt (Lamont-Doherty)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Global ethane emissions
+
|Brown carbon chemsitry
|Zitely Tzompa-Sosa (CSU)
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Inefficient combustion emissions in Africa (DICE-Africa inventory)
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
|Eloise Marais (U. Birmingham)<br>Christine Wiedinmyer (NCAR)
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
|Science
+
|Convection
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Trash burning emissions
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
|Eloise Marais (U. Birmingham)<br>Christine Wiedinmyer (NCAR)
+
|Jintai Lin (PKU)
|Science
+
|Emissions
 
|
 
|
 +
*Horizontal resolution: 5km, temporal resolution: JJA mean
 +
*monthly data will be available at a later stage; please contact us
  
 
|-valign="top"
 
|-valign="top"
|GFAS biomass burning emissions
+
|Updated biomass burning emission factors and species
|Mat Evans (York)
+
|Tess Carter (MIT)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|MEIC emissions over China
+
|Updated offline sea salt emissions
|Jonathan Moch (Harvard), Loretta Mickley (Harvard)
+
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
|Science
+
|Emissions
 
|
 
|
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Deposition/surface updates
 
  
 
|-valign="top"
 
|-valign="top"
|Harmonizing Henry's Law coefficients across wet and dry deposition
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
|[[GCST]]
+
|Sam Silva (MIT)
|Science
+
|Emissions &<br>Science
 
|
 
|
 +
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
 +
*Needs to be updated to a more recent GEOS-Chem version
  
 
|-valign="top"
 
|-valign="top"
|[[Aerosols_Working_Group#Sedimentation_of_stratospheric_aerosols|Sedimentation of stratospheric aerosols]]
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
|Sebastian Eastham (Harvard)
+
|Bob Yantosca (Harvard)
|Science
+
|Model performance
 
|
 
|
 
+
*Ongoing (will be done as time allows)
|-
+
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
+
  
 
|-valign="top"
 
|-valign="top"
|Updated Tagged CO simulation
+
|Retire all BPCH diagnostics
|Jenny Fisher (Wollongong)
+
|Bob Yantosca (Harvard)
|Science
+
|Diagnostics
 
|
 
|
 +
*Can be done following the [https://github.com/geoschem/geos-chem/pull/1569 TOMAS update for GCHP]
  
 
|-valign="top"
 
|-valign="top"
|India nested-grid for GEOS-5
+
|Assess memory leak in GCHP
|Sreleekha Chaliyakunnel (U. Minnesota)
+
|Killian Murphy (York)
|Science
+
|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].  Need to assess if any memory leaks still remain.
  
 
|-valign="top"
 
|-valign="top"
|Africa nested-grid for GEOS-5
+
|Hybrid MPI-OpenMP in GCHP
|Eloise Marais (U. Birmingham)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
|Science
+
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|West Africa nested-grid for GEOS-FP
+
|Improve run directory templating and creation with init_rd.sh and shared directories
|Mat Evans (York)<br>Eleanor Morris (York)
+
|Jourdan He (WashU)
|Science
+
|Run directories
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Tagged sulfate simulation
+
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
|Becky Alexander
+
|GCST?
|Science
+
|Documentation
 
|
 
|
  
|-
+
|}
!colspan="4" bgcolor="#CCFFFF"|Structural updates
+
  
|-valign="top"
+
== Over the horizon (6-12 months) ==
|[[GEOS-Chem_species_units|Uniformity of units]]
+
 
|[[GCST]]
+
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.
|Structural
+
 
|
+
{| border=1 cellspacing=0 cellpadding=5
*Phase 2 (unit uniformity throughout chemistry) to be implemented after Flexchem
+
|- bgcolor="#cccccc"
*Phase 3 (unit uniformity in some specialty simulations) will be implemented in pieces with input from 3rd party developers
+
!width="200px"|Feature
*Phase 4 (removal of area and area-dependent State_Met variables) will be ongoing
+
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3a: Output diagnostics in NetCDF format]]
+
|Snow / Icy Bromine
|[[GCST]]
+
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
|Structural
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3b: Updates to eliminate differences between single and multi-segmented GEOS-Chem runs]]
+
|Monoterpene oxidation scheme
|[[GCST]]<br>Christoph Keller
+
|Jessica Haskins (MIT)
|Bug fix/Structural
+
|Chemistry
 
|
 
|
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
 
  
 
|-valign="top"
 
|-valign="top"
|Additional modifications for [[FlexChem]], including:
+
|Fire related VOCs including furans
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, UCX, SOA, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Lu Hu (UMT)<br>Lixu Jin (UMT)
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
|Chemistry
|Mike Long (Harvard)<br>[[GCST]]
+
|Structural
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|FlexGrid: Use HEMCO I/O and regridding capabilities to read and regrid met fields
+
|Extension of UCX into the mesosphere
|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
+
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
|Structural
+
|Chemistry
 
|
 
|
*Delivered to GCST (Oct 2016)
 
  
 
|-valign="top"
 
|-valign="top"
|Merge standard simulation with specialty simulations for OVOC, acids, aromatics, dicarbonyls, terpenes
+
|Methane flux ingestion
|Dylan Millet (UMN)<br>Xin Chen (UMN)
+
|Eloise Marais (UCL)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Nested CO2, CH4, Hg, TOMAS, adjoint, etc.
+
|Dust non-sphericity impacts on surface chem and optical properties
|[[Nested Model Working Group]]
+
|Inderjeet Singh (WashU)
|Science
+
|Aerosols
 
|
 
|
 
|}
 
 
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 17:19, 11 May 2017 (UTC)
 
 
==== Defer to v11-03 unless ready in time for v11-02 ====
 
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="400px"|Item
 
!width="250px"|Author(s)
 
!width="80px"|Type
 
!width="250px"|Status
 
  
 
|-valign="top"
 
|-valign="top"
|Global evaluation of using LWC and IWC from met fields for wet scavenging
+
|Size-resolved stratospheric aerosol
|Hongyu Liu (NIA/NASA LARC)<br>Bo Zhang (NIA)
+
|Seb Eastham (MIT)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Kz eddy mixing scheme
+
|Extend aerosol settling
|Karen Yu (Harvard)
+
|Eloise Marais (UCL)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|VBS SOA option
+
|Stratospheric aerosol APM
|Rokjin Park (SNU)
+
|Fangqun Yu (SUNY)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Benchmark of stratosphere simulation
+
|Plume-in-grid model
|Dylan Jones (U. Toronto)
+
|Hongwei Sun (Harvard)
|Benchmarking
+
|Chemistry
 
|
 
|
*1-yr benchmarks for GEOS-Chem v11-01d and later include comparisons with OSIRIS O3
 
*Waiting on OSIRIS NO2 data
 
*Waiting on comparisons with ACE-FTS data
 
 
|}
 
 
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 17:19, 11 May 2017 (UTC)
 
 
==== Not prioritized for v11-02 ====
 
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="400px"|Item
 
!width="250px"|Author(s)
 
!width="80px"|Type
 
!width="250px"|Status
 
  
 
|-valign="top"
 
|-valign="top"
|[[Python code for GEOS-Chem|Python GEOS-Chem output processing and visualization package]]
+
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
|Beno&icirc;t Bovy (U. Li&egrave;ge-Belgium)
+
|Lee Murray (Rochester)
|Software package
+
|Emissions
 
|
 
|
*Users may download, test it, and submit feedback to Benoit Bovy.
 
  
 
|-valign="top"
 
|-valign="top"
|Sea salt emission from sea ice
+
|Seb aircraft emissions beyond recent 2019 update
|Jiayue Huang (UW)
+
|Seb Eastham (MIT)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Re-evaluation of SST dependence of sea salt emissions
+
|FRP-based fire emsisions for eastern US at 0.2 deg
|Jiayue Huang (UW)
+
|Charlie Fite (FSU)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|MOSAIC implementation
+
|Hg iodine chemistry
|Sebastian Eastham (Harvard)
+
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#Discussion_of_LAI_Data_Sources|Update MODIS LAI fields through 2015]]
+
|Hg simulation in GCHP
|Barron Henderson (UF)
+
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Lightning NOx chemistry parameterization
+
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
|Alicia Gressent (MIT)
+
|Yanxu Zhang (Nanjing U.)
|Science
+
|Hg simulation
 
|
 
|
 
|}
 
 
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 17:19, 11 May 2017 (UTC)
 
 
=== Almost there (< 6 months) ===
 
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="400px"|Item
 
!width="250px"|Author(s)
 
!width="80px"|Type
 
!width="250px"|Status
 
  
 
|-valign="top"
 
|-valign="top"
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Dry deposition diagnostics by land cover
|Colin Thackray (Harvard)<br>Carey Friedman (formerly MIT)<br>Helen Amos (formerly Harvard)
+
|Holly Nowell (FSU)
|Science
+
|Diagnostics
 
|
 
|
 
|}
 
 
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 17:40, 11 May 2017 (UTC)
 
 
=== Over the horizon (6-12 months) ===
 
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="400px"|Item
 
!width="250px"|Author(s)
 
!width="80px"|Type
 
!width="250px"|Status
 
  
 
|-valign="top"
 
|-valign="top"
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Update SO2 scavenging in convective updrafts for consistency]]
+
|Dry deposition process diagnostics
|Duncan Fairlie (NASA/LARC)  
+
|Holly Nowell (FSU)
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dust emissions at nested-grid resolution
+
|Isotope simulation for CO and CH4 in GCHP
|Yuxuan Wang (Texas A&M)<br>Jun Wang (UNL)
+
|Lee Murray (Rochester)
|Science
+
|Carbon simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive meteorological fields with higher resolution (for RCPs)
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
|Lee Murray (NASA GISS/LDEO)
+
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
|Science
+
|Emissions<br>CH4 simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Land cover module in GEOS-Chem
+
|Modularization of aerosols code for interface with GOCART in GEOS
|Jeffrey Geddes (MIT)<br>Michael Long (Harvard)
+
|Christoph Keller (GMAO)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Improved lightning emission scheme
+
|Improve load balancing in GCHP
|Lee Murray (NASA GISS/LDEO)
+
|Seb Eastham (MIT)
|Science
+
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive high resolution wind fields for sea salt
+
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
|[[GEOS-Chem Support Team]]
+
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Cl chemistry updates
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
|Lyatt Jaegl&eacute; (UW)
+
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Automate redistribution of NOx in HEMCO
+
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
|Lee Murray (NASA GISS/LDEO)
+
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
|Science
+
|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.
 +
 +
{| 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"
|Include Hg in full chemistry
+
|Updates to Aromatic chemistry
|Noelle Selin (MIT)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|DMS oxidation scheme updating
+
|Nitrate photolysis
|Tom Breider (Harvard)<br>Becky Alexander (U. Washington)<br>[[Chemistry Issues|Oxidants and Chemistry Working Group]]
+
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
|Science
+
|Chemistry
 
|
 
|
*Currently being worked on by a member of the [http://www.atmos.washington.edu/blog/beckya/group-members/ Alexander group]
 
  
 
|-valign="top"
 
|-valign="top"
|Historical Hg emissions (1850-present)
+
|In aerosol chemistry Halogens
|Hannah Horowitz (Harvard)
+
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
|Science
+
|Chemistry
 
|
 
|
*Awaiting completion of David Street's revised 1850-present inventory
 
  
 
|-valign="top"
 
|-valign="top"
|Joint CO/CO2/CH4 forward model simulation
+
|Benchmark box model of GC Chemistry
|Nicholas Deutscher (U. Wollongong)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Past and future fire emissions under RCPs
+
|Alkyl nitrates Alk7, PHAN
|Loretta Mickley (Harvard)<br>Yuhang Wang (GIT)<br>Shiliang Wu (MT)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 
|
 
|
*Some regional (western US, Canada, and Alaska) inventories for the 2050s A1B scenario are available by request (Loretta Mickley).
 
*Further work on global scale and other scenarios are underway.
 
  
 
|-valign="top"
 
|-valign="top"
|Benchmark for 0.25x0.3125 nested NA model
+
|Add stratospheric ozone species to full-chemistry simulations
|Jun Wang (UNL)
+
|Lee Murray (Rochester)
|Benchmarking
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Emission scheme of dust: subgrid wind variation to remove resolution dependence and better interannual variability
+
|Perchlorate chemistry
|David Ridley (MIT)
+
|Yuk Chun Chan (UWAB)
|Science
+
|Chemistry
 
|
 
|
 
|}
 
 
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 17:19, 11 May 2017 (UTC)
 
 
=== Longer term (12-24 months)===
 
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="400px"|Item
 
!width="250px"|Author(s)
 
!width="80px"|Type
 
!width="250px"|Status
 
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate and nitrate simulation]], including
+
|Explicit heterogeneous sulfate chemistry
*[[Sulfate_aerosols#Metal_catalyzed_oxidation_of_SO2|Metal catalyzed oxidation of SO2]] (as a switch)
+
|Katie Travis (NASA)<br>Becky Alexander (UT)
|Becky Alexander (UW)
+
|Chemistry
|Science
+
 
|
 
|
*These updates been implemented in v9-02, but have not been successfully merged with HEMCO in v10-01
 
*Improvements for the tagged nitrate simulation are in the pipeline
 
  
 
|-valign="top"
 
|-valign="top"
|CO2 dependence of stomata conductance in dry deposition
+
|HOx and ozone "emissions" from lightning as option in model to play with
|Amos Tai (CUHK)
+
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Ozone damage to vegetation
+
|Sea salt aerosol from sea ice leads
|Amos Tai (CUHK)
+
|Hannah Horowitz (U. Illinois)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Bi-directional NH3 emissions
+
|Drought-stress algorithm
|Juliet Zhu (CSU)<br>Lin Zhang (PKU)
+
|Wei Li (U. Houston)
|Science
+
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Arsenic simulation
+
|Biomass burning injection height profiles
|Shiliang Wu (MT)
+
|Inderjeet Singh (WashU)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dry deposition: Update the ozone dry deposition scheme
+
|OCIM integration
|[http://www.chem.utoronto.ca/wp/murphygroup/ Murphy group] (UofT)
+
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
|Science
+
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Country-based weekend/weekday variability for EDGAR v4.2
+
|Updating landcover products in GEOS-Chem
|Lee Murray (NASA GISS/LDEO)<br>Christoph Keller (Harvard)
+
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
|Science
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Resolution-independent lightning NOx scaling
+
|Dry deposition physical improvement
|Lee Murray (NASA GISS/LDEO)
+
|Chris Holmes (FSU)
|Science
+
|Dry deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Nested-grid model with GEOS-FP at 1/2&deg; x 5/8&deg; resolution
+
|TOMAS WRF-GC in regional Thailand simulation
|[[Nested Model Working Group]]
+
|Win Trivitayanurak (Chulalongkorn U)
|Structural
+
|Aerosols
 
|
 
|
  
 
|}
 
|}
 
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 17:19, 11 May 2017 (UTC)
 

Latest revision as of 20:55, 18 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
Replace ISORROPIA with HETPv1.0 Lizzie Lundgren (Harvard)
Seb Eastham (ICL)
Aerosol thermodynamics Medium
Only convert units for species that need it Bob Yantosca (Harvard) Unit conversions 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)
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