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

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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
+
  
−
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
−
|[[Updates_in_JPL_Publication_15-10|Updating chemistry rate constants based on ''JPL Publication 15-10'']]
+
|-bgcolor="#CCCCCC"
−
|Barron Henderson (U. Florida)<br>Mat Evans (U. York)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
!width="200px"|Feature
−
|
+
!width="200px"|Contributor(s)
−
*Included in [[GEOS-Chem v11-02#v11-02a|v11-02a]] (pending approval)
+
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[[PAN|PAN updates (including emissions, deposition, species, chemistry)]]
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
−
|Emily Fischer (CSU)
+
|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"
−
|[[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"
+
−
!colspan="3"|Structural/programming updates
+
  
 
|-valign="top"
 
|-valign="top"
−
|TBD
+
|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]
−
|-bgcolor="#ccffff" valign="top"
+
−
!colspan="3"|Documentation
+
  
 
|-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]
  
 
|}
 
|}
  
−
=== Ready to go in ===
+
== Prioritized and in the queue ==
  
−
==== Slated for inclusion in v11-02 ====
+
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
  
−
The following items were prioritized for inclusion in [[GEOS-Chem v11-02]].
+
{| border=1 cellspacing=0 cellpadding=5  
−
 
+
|-bgcolor="#CCCCCC"
−
{| border=1 cellspacing=0 cellpadding=5
+
!width="200px"|Feature
−
|- bgcolor="#cccccc"
+
!width="200px"|Contributor(s)
−
!width="400px"|Item
+
!width="100px"|Model scope
−
!width="250px"|Author(s)
+
!width="100px"|Ease of implementation
−
!width="80px"|Type
+
!width="100px"|Delivery status
−
!width="250px"|Status
+
!width="300px"|Notes and References
−
 
+
−
|-
+
−
!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]]
 
−
 
−
|-valign="top"
 
−
|Add aqueous isoprene uptake to SOA scheme
 
−
|Eloise Marais (Harvard)
 
−
|Science
 
 
|
 
|
−
*Delivered to GCST (Jul 2016)
+
*[https://github.com/geoschem/GCHP/issues/377 GCHP Issue #377]
−
*Slated for [[GEOS-Chem v11-02#v11-02c|v11-02c]]
+
*'''Currently on hold, as the submitted update results in zero diff'''
  
 
|-valign="top"
 
|-valign="top"
−
|Carbon balance (fix C creation)
+
|New version of CEDS at 0.1 deg
−
|Sarah Safieddine (MIT)
+
|Dandan Zhang (WashU)
−
|Bug fix
+
|Emissions
 +
|Simple
 +
|Delivered
 
|
 
|
−
*Slated for [[GEOS-Chem v11-02#v11-02c|v11-02c]]
+
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
 +
*'''Currently on hold while an issue with seasonality in the new CEDS data is being investigated by the authors.'''
  
−
|-valign="top"
+
|}
−
|Other N, C, etc. balance
+
−
|Barron Henderson (EPA)
+
−
|External script
+
−
|
+
  
−
|-valign="top"
+
== Ready to go in ==
−
|Halogen chemistry updates
+
−
|Tom&aacute;s Sherwen (York)<br>Johan Schmidt (Harvard)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
−
|Science
+
−
|
+
−
*Slated for [[GEOS-Chem v11-02#v11-02d|v11-02d]]
+
  
−
|-valign="top"
+
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.
−
|Sulfur oxidation by reactive halogens
+
−
|Qianjie Chen (UW)
+
−
|Science
+
−
|
+
−
*Slated for [[GEOS-Chem v11-02#v11-02d|v11-02d]]
+
−
*Implement as part of halogen chemistry
+
  
−
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
−
|[[Aerosol_optical_properties#Add_BC_absorption_enhancement_factor|Update density of BC to 1.8 and add absorption enhancement factor in input.geos]]
+
|-bgcolor="#CCCCCC"
−
|Xuan Wang (MIT)
+
!width="200px"|Feature
−
|Science
+
!width="200px"|Contributor(s)
−
|
+
!width="100px"|Model scope
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jan 2016)
+
!width="100px"|Delivery status
−
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[[NOx-Ox-HC-aerosol#Monthly mean surface distributions|Monthly mean surface methane distributions]]
+
|KORUS-AQ emissions for East Asia (as an option)
−
|Lee Murray (NASA GISS/LDEO)
+
|Katie Travis (NASA)
−
|Science
+
|Emissions
 +
|Simple
 
|
 
|
−
*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]]
+
|Geologic emission of ethane and propane
−
|Seb Eastham (Harvard)
+
|Matthew Rowlinson and Mat Evans(York)
−
|Science
+
|Emissions
 +
|Delivered<br>Jan 2023
 
|
 
|
−
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
*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"
−
|[[UCX_chemistry_mechanism#UCX_stratospheric_water_boundary_condition_update|UCX stratospheric water boundary condition update]]
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
−
|Chris Holmes (UC Irvine)<br>Seb Eastham (Harvard)
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Science
 
|Science
 +
|Delivered<br>Feb 2021
 
|
 
|
−
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
−
*Delivered to GCST (Jan 2017)
+
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Metal_catalyzed_oxidation_of_SO2|Metal catalyzed oxidation of SO2]] (as a switch)
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
−
|Becky Alexander (UW)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
−
|Science
+
|Emissions
 +
|Delivered<br>Jul 2021
 
|
 
|
−
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
*Data involves many files- need to think about temporal frequency
  
 
|-valign="top"
 
|-valign="top"
−
|[[Rn-Pb-Be_simulation#Radon_flux_diagnostic|Radon flux diagnostic]]
+
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
−
|[[GCST]]
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
−
|Benchmarking
+
|Chemistry
 +
|Delivered<br>June 2023
 
|
 
|
−
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
*[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
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Mercury updates
+
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to Hg chemistry from Horowitz et al. (2017)
+
|DMS Chemistry
−
|Hannah Horowitz (U. Washington)<br>Colin Thackray (Harvard)<br>Rebecca Stern (Harvard)
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
−
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Year 2010 ocean Hg boundary conditions from MITgcm
+
|Organic acids (RCOOH)
−
|Hannah Horowitz (Harvard)
+
|Katie Travis (NASA)
−
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Historical products emissions from Zhang et al. (2016), should become default
+
|Improve carbon & nitrogen conservation in reactions
−
|Colin Thackray (Harvard)
+
|Kelvin Bates (Harvard)
−
|Science
+
|Chemistry
−
|
+
|Not delivered
−
 
+
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Transport updates
+
−
 
+
−
|-valign="top"
+
−
|GEOS resolution & subgrid convection
+
−
|Karen Yu (Harvard)
+
−
|Science
+
−
|
+
−
 
+
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Emission updates
+
−
 
+
−
|-valign="top"
+
−
|OMI-based Volcanic emissions 2005-2012
+
−
|Jun Wang (U. Iowa)
+
−
|Science
+
−
|
+
−
*Delivered to Christoph Keller?
+
−
 
+
−
|-valign="top"
+
−
|[[EDGAR_v4.3_anthropogenic_emissions|EDGAR v4.3.1 emissions]]
+
−
|Chi Li (Dalhousie)
+
−
|Science
+
−
|
+
−
*Delivered to GCST (Nov 2016)
+
−
 
+
−
|-valign="top"
+
−
|EPA-derived BC/OA emissions over US (1990-2012)
+
−
|David Ridley (MIT)<br>Chi Li (Dalhousie)
+
−
|Science
+
−
|
+
−
*Need to coordinate between two versions
+
−
 
+
−
|-valign="top"
+
−
|[[CAC_anthropogenic_emissions#Historical_emissions|Historical CAC emissions]]
+
−
|Chi Li (Dalhousie)
+
−
|Science
+
 
|
 
|
−
*Delivered to GCST (Nov 2016)
 
  
 
|-valign="top"
 
|-valign="top"
−
|Ammonia emissions from Arctic birds
+
|Blowing snow sea salt in TOMAS
 
|Betty Croft (Dalhousie)
 
|Betty Croft (Dalhousie)
−
|Science
+
|Aerosols
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
−
|Fabien Paulot (NOAA/GFDL)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
−
|Science
+
|Hg simulation
 +
|Not delivered
 
|
 
|
−
*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]
+
|WRF-GC Hg simulation
−
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
−
|Science
+
|Hg simulation<br>WRF-GC
 +
|Not delivered
 
|
 
|
−
*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]]
+
|Updated HgII gas-partical partitioning
−
|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
+
|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"
−
|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
+
|Dry deposition to F90 (readability)
−
|Amos Tai (CUHK)
+
|Chris Holmes (FSU)
−
|Science
+
|Dry deposition
 +
|Not delivered
 
|
 
|
  
−
|-valign="top"
+
|}
−
|Radon emission update
+
−
|Bo Zhang (NIA/NASA Langley)
+
−
|Science
+
−
|
+
  
−
|-valign="top"
+
== Almost there (< 6 months) ==
−
|Global ethane emissions
+
−
|Zitely Tzompa (CSU)
+
−
|Science
+
−
|
+
  
−
|-valign="top"
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
−
|Inefficient combustion emissions in Africa (DICE-Africa inventory)
+
−
|Eloise Marais (U. Birmingham)<br>Christine Wiedinmyer (NCAR)
+
−
|Science
+
−
|
+
  
−
|-valign="top"
+
{|border=1 cellspacing=0 cellpadding=5
−
|Trash burning emissions
+
|- bgcolor="#cccccc"
−
|Eloise Marais (U. Birmingham)<br>Christine Wiedinmyer (NCAR)
+
!width="200px"|Feature
−
|Science
+
!width="200px"|Contributor(s)
−
|
+
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|GFAS biomass burning emissions
+
|PPN+hv, PPN+OH
−
|Mat Evans (York)
+
|Robert Ryan (UCL)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|MEIC emissions over China
+
|MBO
−
|Jonathan Moch (Harvard), Loretta Mickley (Harvard)
+
|Michael Vermeuel (UMN)
−
|Science
+
|Chemistry
 
|
 
|
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Deposition/surface updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|Harmonizing Henry's Law coefficients across wet and dry deposition
+
|Initial conditions for CH4 correcting background and stratospheric biases
−
|[[GCST]]
+
|Todd Mooring (Harvard)
−
|Science
+
|Methane simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Aerosols_Working_Group#Sedimentation_of_stratospheric_aerosols|Sedimentation of stratospheric aerosols]]
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
−
|Sebastian Eastham (Harvard)
+
|Bob Yantosca (Harvard)
−
|Science
+
|Aerosols<br>Structural
 
|
 
|
 +
*Ongoing
  
 
|-valign="top"
 
|-valign="top"
−
|Wet scavenging in mixed-phase clouds
+
|Re-binning of off-line sea salt and dust for use in TOMAS
−
|Bo Zhang (NIA/NASA Langley)
+
|Betty Croft (Dalhousie)
−
|Science
+
|Aerosols
 
|
 
|
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|Updated Tagged CO simulation
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
−
|Jenny Fisher (Wollongong)
+
|Betty Croft (Dalhousie)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|India nested-grid for GEOS-5
+
|ML algorithms for bulk aerosols
−
|Sreleekha Chaliyakunnel (U. Minnesota)
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Africa nested-grid for GEOS-5
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
−
|Eloise Marais (U. Birmingham)
+
|Shixian Zhai (Harvard)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|West Africa nested-grid for GEOS-FP
+
|Updates to Hodzic SOA scheme
−
|Mat Evans (York)<br>Eleanor Morris (York)
+
|Jared Brewer (Harvard)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
+
|Automated reduction in isoprene scheme
−
|Becky Alexander (UW)
+
|Dan Westervelt (Lamont-Doherty)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Sea-salt aerosol alkalinity
+
|Brown carbon chemsitry
−
|Becky Alexander (UW)
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|AMAP/UNEP 2035 for Hg simulation
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
−
|Helene Angot (MIT)
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
−
|Science
+
|Convection
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Arsenic simulation
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
−
|Shiliang Wu (MT)
+
|Jintai Lin (PKU)
−
|Science
+
|Emissions
 
|
 
|
−
 
+
*Horizontal resolution: 5km, temporal resolution: JJA mean
−
|-
+
*monthly data will be available at a later stage; please contact us
−
!colspan="4" bgcolor="#CCFFFF"|Structural updates
+
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem_species_units|Uniformity of units]]
+
|Updated biomass burning emission factors and species
−
|[[GCST]]
+
|Tess Carter (MIT)
−
|Structural
+
|Emissions
 
|
 
|
−
*Phase 2 (unit uniformity throughout chemistry) to be implemented after Flexchem
 
−
*Phase 3 (unit uniformity in some specialty simulations) will be implemented in pieces with input from 3rd party developers
 
−
*Phase 4 (removal of area and area-dependent State_Met variables) will be ongoing
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3a: Output diagnostics in NetCDF format]]
+
|Updated offline sea salt emissions
−
|[[GCST]]
+
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
−
|Structural
+
|Emissions
 
|
 
|
  
 
|-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]]  
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
−
|[[GCST]]<br>Christoph Keller
+
|Sam Silva (MIT)
−
|Bug fix/Structural
+
|Emissions &<br>Science
 
|
 
|
−
 
+
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
−
|-
+
*Needs to be updated to a more recent GEOS-Chem version
−
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
+
  
 
|-valign="top"
 
|-valign="top"
−
|Additional modifications for [[FlexChem]], including:
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
−
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, UCX, SOA, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Bob Yantosca (Harvard)
−
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
|Model performance
−
|Mike Long (Harvard)<br>[[GCST]]
+
−
|Structural
+
 
|
 
|
 +
*Ongoing (will be done as time allows)
  
 
|-valign="top"
 
|-valign="top"
−
|FlexGrid: Use HEMCO I/O and regridding capabilities to read and regrid met fields
+
|Assess memory leak in GCHP
−
|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
+
|Killian Murphy (York)
−
|Structural
+
|Model performance
 
|
 
|
−
*Delivered to GCST (Oct 2016)
+
*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.
  
 
|-valign="top"
 
|-valign="top"
−
|Merge standard simulation with specialty simulations for OVOC, acids, aromatics, dicarbonyls, terpenes
+
|Hybrid MPI-OpenMP in GCHP
−
|Dylan Millet (UMN)<br>Xin Chen (UMN)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
−
|Science
+
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Nested CO2, CH4, Hg, TOMAS, adjoint, etc.
+
|Improve pressure handling in GCHP advection
−
|[[Nested Model Working Group]]
+
|Seb Eastham (MIT)<br>Yuanjian Zhang (WashU)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Archival of roughness length for temperature z0T
+
|Use ExtData2G as default GCHP input module
−
|[[GCST]]
+
|Lizzie Lundgren (Harvard)
−
|Met processing
+
|GCHP
−
|
+
|Will replace ExtData.rc with yaml file
  
 
|}
 
|}
  
−
==== Defer to v11-03 unless ready in time for v11-02 ====
+
== Over the horizon (6-12 months) ==
  
−
{| border=1 cellspacing=0 cellpadding=5
+
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.
−
|- bgcolor="#cccccc"
+
−
!width="400px"|Item
+
−
!width="250px"|Author(s)
+
−
!width="80px"|Type
+
−
!width="250px"|Status
+
−
 
+
−
|-valign="top"
+
−
|Global evaluation of using LWC and IWC from met fields for wet scavenging
+
−
|Hongyu Liu (NIA/NASA LARC)<br>Bo Zhang (NIA)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Kz eddy mixing scheme
+
−
|Karen Yu (Harvard)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|VBS SOA option
+
−
|Rokjin Park (SNU)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Benchmark of stratosphere simulation
+
−
|Dylan Jones (U. Toronto)
+
−
|Benchmarking
+
−
|
+
−
*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
+
−
 
+
−
|}
+
−
 
+
−
==== Not prioritized for v11-02 ====
+
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
−
!width="400px"|Item
+
!width="200px"|Feature
−
!width="250px"|Author(s)
+
!width="200px"|Contributor(s)
−
!width="80px"|Type
+
!width="100px"|Model scope
−
!width="250px"|Status
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt emission from sea ice
+
|Snow / Icy Bromine
−
|Jiayue Huang (UW)
+
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Re-evaluation of SST dependence of sea salt emissions
+
|Monoterpene oxidation scheme
−
|Jiayue Huang (UW)
+
|Jessica Haskins (MIT)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#Discussion_of_LAI_Data_Sources|Update MODIS LAI fields through 2015]]
+
|Fire related VOCs including furans
−
|Barron Henderson (UF)
+
|Lu Hu (UMT)<br>Lixu Jin (UMT)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Lightning NOx chemistry parameterization
+
|Extension of UCX into the mesosphere
−
|Alicia Gressent (MIT)
+
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
−
|Science
+
|Chemistry
 
|
 
|
−
 
−
|}
 
−
 
−
=== 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"
−
|Carbon bottom up fluxes: anthro, ocean, land
+
|Methane flux ingestion
−
|Kevin Bowman (JPL)
+
|Eloise Marais (UCL)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|GISS-GC (ICECAP/GCAP2) in standard model + benchmark
+
|Dust non-sphericity impacts on surface chem and optical properties
−
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|Inderjeet Singh (WashU)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|CESM-GC offline coupling in standard model + benchmark
+
|Size-resolved stratospheric aerosol
−
|Rokjin Park (SNU)<br>Daniel Rothenberg (MIT)
+
|Seb Eastham (MIT)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|CESM-GC GCHP
+
|Extend aerosol settling
−
|Daniel Rothenberg (MIT)
+
|Eloise Marais (UCL)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Injection height for fire emissions
+
|Stratospheric aerosol APM
−
|Juliet Zhu (CSU)<br>Emily Fischer (CSU)
+
|Fangqun Yu (SUNY)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Diurnal variability for NH3
+
|Plume-in-grid model
−
|Henze group
+
|Hongwei Sun (Harvard)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|EPA NEI2011 Version EK
+
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
−
|Zitely Tzompa (CSU)<br>Emily Fischer (CSU)
+
|Lee Murray (Rochester)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|OH + NO2 rate update
+
|Seb aircraft emissions beyond recent 2019 update
−
|Barron Henderson (EPA)
+
|Seb Eastham (MIT)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|N2O5 hydrolysis updates
+
|FRP-based fire emsisions for eastern US at 0.2 deg
−
|Viral Shah (UW)
+
|Charlie Fite (FSU)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Land cover module: Harmonized biosphere-atmosphere exchange and implementing CLM or manual land cover change experiments
+
|Hg iodine chemistry
−
|Jeff Geddes (BU)
+
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|H2 chemistry in UCX
+
|Hg simulation in GCHP
−
|Chris Holmes (FSU)
+
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Uptake of HNO3 onto coarse-mode sea salt
+
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
−
|Prasad Kasibhatla (Duke)
+
|Yanxu Zhang (Nanjing U.)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Photolysis of NITs
+
|Dry deposition diagnostics by land cover
−
|Prasad Kasibhatla (Duke)
+
|Holly Nowell (FSU)
−
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Dry deposition process diagnostics
−
|Colin Thackray (Harvard)<br>Carey Friedman (formerly MIT)<br>Helen Amos (formerly Harvard)
+
|Holly Nowell (FSU)
−
|Science
+
|Diagnostics
 
|
 
|
−
 
  
 
|-valign="top"
 
|-valign="top"
−
|New EDGAR sectoral inventory for Hg (1970-2012)
+
|Isotope simulation for CO and CH4 in GCHP
−
|Amanda Giang (MIT)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc.
+
−
|Sarah Safieddine (MIT)<br>GCST
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Archive GISS met fields from RCP scenarios for community
+
 
|Lee Murray (Rochester)
 
|Lee Murray (Rochester)
−
|Science
+
|Carbon simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Online O3-LAI coupling in GEOS-Chem
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
−
|Amos Tai (CUHK)
+
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
−
|Science
+
|Emissions<br>CH4 simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Clean up SOA diagnostics
+
|Modularization of aerosols code for interface with GOCART in GEOS
−
|GCST
+
|Christoph Keller (GMAO)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Calculation consistency throughout code: surface area, HGF (via species database)
+
|Improve load balancing in GCHP
−
|GCST
+
|Seb Eastham (MIT)
−
|Structural
+
|Model performance
 
|
 
|
−
 
−
|}
 
−
 
−
=== 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"
−
|GISS-GC GCHP
+
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
−
|Lee Murray (Rochester)
+
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
−
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Dynamic fire modeling/prediction
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
−
|Shiliang Wu (MNT)
+
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
−
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Interannually varying ocean model BCs for Hg from ocean model
+
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
−
|Colin Thackray (Harvard)
+
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
−
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|PAH & PFCA simulations
+
|MAPL version 3
−
|Peter Ivatt (York)<br>Mat Evans (York)<br>Noelle Selin (MIT)<br>Colin Thackray (Harvard)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
−
|
+
|Will include History wildcard handling in GCHP
  
−
|-valign="top"
 
−
|CH4 in full chemistry simulation
 
−
|Seb Eastham (Harvard)
 
−
|Science
 
−
|
 
  
 
|-valign="top"
 
|-valign="top"
−
|Standard future land use maps (PFT, LAI) for RCP/CMIP6 simulations
+
|Migrate benchmark meteorology from MERRA2 to GEOS-IT
−
|Colette Heald (MIT)<br>Loretta Mickley (Harvard)
+
|GCST
−
|Science
+
|Benchmarking
 
|
 
|
  
−
|-valign="top"
+
|}
−
|Archive GISS met fields from CMIP6 scenarios for community
+
−
|Lee Murray (Rochester)
+
−
|Science
+
−
|
+
  
−
|-valign="top"
+
== Longer term (12-24 months)==
−
|Updates to cold-temperature deposition
+
−
|Lyatt Jaegle (UW)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Simple parameterization for CO2-O3 dependence of stomatal resistance
+
−
|Amos Tai (CUHK)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|NH3 emissions over China
+
−
|Lin Zhang (PKU)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Using GEOS-Chem within GEOS-5
+
−
|Loretta Mickley (Harvard)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Carbon cycle outputs in xCO2, xCH4 as a diagnostic
+
−
|Beata Bukosa (Wollongong)<br>Dylan Jones (UofT)
+
−
|Structural
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Seasonal EMEP emissions back to 1980
+
−
|Mat Evans (York)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Updates to NO2 dry deposition
+
−
|Brian Boys (Dalhousie)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|APM update and integration with most recent GEOS-Chem version
+
−
|Gan Luo (SUNY Albany)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Cosmogenic tracer production
+
−
|Lee Murray (Rochester)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Explore resolution-consistent dust emissions
+
−
*Make high-res concentrations or mass fluxes available offline, implement in met field processing
+
−
|David Ridley (MIT)<br>GCST<br>Nested Model WG
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Update SO2 scavenging in convective updrafts for consistency]]
+
−
|Duncan Fairlie (NASA/LARC)
+
−
|Science
+
−
|
+
−
 
+
−
|}
+
  
−
=== Longer term (12-24 months)===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
−
!width="400px"|Item
+
!width="200px"|Feature
−
!width="250px"|Author(s)
+
!width="200px"|Contributor(s)
−
!width="80px"|Type
+
!width="100px"|Model scope
−
!width="250px"|Status
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Embedding GEOS-Chem into CESM
+
|Updates to Aromatic chemistry
−
|Jean-Francois Lamarque (NCAR)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Adjoint of carbon cycle simulation in GCHP
+
|Nitrate photolysis
−
|Kevin Bowman (JPL)
+
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Isoprene chemistry v2 (new Caltech update)
+
|In aerosol chemistry Halogens
−
|Kelvin Bates (Caltech)
+
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Contemporary land cover: developing historical and updated GEOS-Chem land cover maps based on satellite remote sensing
+
|Benchmark box model of GC Chemistry
−
|Jeff Geddes (BU)
+
|Katie Travis (NASA)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Farquhar-Ball-Barry model to calculate stomatal resistance
+
|Alkyl nitrates Alk7, PHAN
−
|Amos Tai (CUHK)<br>Jeff Geddes (BU)
+
|Katie Travis (NASA)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Impacts of chemistry on ecosystem/carbon cycle
+
|Add stratospheric ozone species to full-chemistry simulations
−
|Kevin Bowman (JPL)<br>Anthony Bloom (JPL)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Improved lightning emission scheme
+
 
|Lee Murray (Rochester)
 
|Lee Murray (Rochester)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Resolution-independent lightning NOx
+
|Perchlorate chemistry
−
|Lee Murray (Rochester)
+
|Yuk Chun Chan (UWAB)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Bidirectional NH3 emissions
+
|Explicit heterogeneous sulfate chemistry
−
|Juliet Zhu (CSU)
+
|Katie Travis (NASA)<br>Becky Alexander (UT)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Country-based weekday/weekend variability for EDGAR 4.2
+
|HOx and ozone "emissions" from lightning as option in model to play with
−
|Lee Murray (Rochester)<br>Christoph Keller (Harvard)
+
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Update keytone photolysis
+
|Sea salt aerosol from sea ice leads
−
|Jared Brewer (CSU)<br>Emily Fischer (CSU)
+
|Hannah Horowitz (U. Illinois)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Small alkyl nitrates
+
|Drought-stress algorithm
−
|Jenny Fisher (Wollongong)
+
|Wei Li (U. Houston)
−
|Science
+
 
|
 
|
−
 
−
|-valign="top"
 
−
|YIBS-GC chemistry-biosphere-fire coupling
 
−
|Loretta Mickley (Harvard)<br>Xu Yue (IAP)
 
−
|Science
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Nitrogen-LAI coupling
+
|Biomass burning injection height profiles
−
|Lin Zhang (PKU)<br>Amos Tai (CUHK)
+
|Inderjeet Singh (WashU)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Implementing humidity/VPD dependence of dry deposition
+
|OCIM integration
−
|Jennifer Murphy (U. Toronto)
+
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
−
|Science
+
 
|
 
|
−
 
−
|-valign="top"
 
−
|SO2 wet scavenging
 
−
|Duncan Fairlie (NASA Langley)
 
−
|Science
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Heterogeneous sulfate production
+
|Updating landcover products in GEOS-Chem
−
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
−
|Science
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|MOSAIC implementation
+
|Dry deposition physical improvement
−
|Sebastian Eastham (Harvard)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Particle size climatology
+
−
|Fangqun Yu (SUNY Albany)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Sea salt/dust size distribution
+
−
|David Ridley (MIT)<br>Colette Heald (MIT)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Updates to GRMM
+
−
|Rebecca Stern (Harvard)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Tracer transport ocean
+
 
|Chris Holmes (FSU)
 
|Chris Holmes (FSU)
−
|Science
+
|Dry deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Include Hg in full chemistry simulation
+
|TOMAS WRF-GC in regional Thailand simulation
−
|Noelle Selin (MIT)
+
|Win Trivitayanurak (Chulalongkorn U)
−
|Science
+
|Aerosols
−
|
+
−
 
+
−
|-valign="top"
+
−
|Goddard seasonal weather prediction in GCHP
+
−
|Kevin Bowman (JPL)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Climate index diagnostics (drought, etc.)
+
−
|Chemistry-ecosystems-climate WG
+
−
|Structural
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Joint CO/CO2/CH4 simulation
+
−
|Nicholas Deutscher (U. Wollongong)
+
−
|Structural
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Carbon coupling: oceans and terrestrial models
+
−
|Chris Holmes (FSU)
+
−
|Science
+
−
|
+
−
*Ocim-pure physical transport, ECCO-Darwin ocean biogeochemistry
+
−
 
+
−
|-valign="top"
+
−
|DMS oxidation scheme updating
+
−
|Qianjie Chen (UW)<br>Chemistry WG
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Limiting NH3 uptake due to OA
+
−
|Rachel Silvern (Harvard)
+
−
|Science
+
 
|
 
|
  
 
|}
 
|}
−
 
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 20:44, 12 May 2017 (UTC)
 

Latest revision as of 20:39, 2 May 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
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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