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

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'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
+
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]].
  
−
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.
+
== Merged and awaiting release ==
  
−
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.
+
See the links below for items merged and awaiting release.
  
−
== Priorities assigned to upcoming GEOS-Chem versions ==
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{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Patch version in development
 +
!width="200px"|Version in development
  
−
=== 12.4.0 ===
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|-valign="top"
 +
|align="center"|'''[[GEOS-Chem 14.2.1]]'''
 +
|align="center"|'''[[GEOS-Chem 14.2.0]]'''
 +
 
 +
|}
  
−
<span style="color:darkorange">'''This version is currently in development. See [[GEOS-Chem_12#12.4.0|the ''GEOS-Chem 12'' wiki page]] for details.'''</span>
+
== Feature integration in progress ==
  
−
=== 12.5.0 ===
+
Features listed in this table are actively being integrated into GEOS-Chem by the [https://geoschem.github.io/support-team.html GEOS-Chem Support Team]. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.  
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
−
!width="500px"|Feature
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!width="200px"|Feature
−
!width="200px"|Submitted by
+
!width="200px"|Contributor(s)
−
!width="100px"|Type
+
!width="100px"|Model scope
−
!width="300px"|Status
+
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
−
|-valign="top
+
|-valign="top"
−
|Retire obsolete emission inventories
+
|TOMAS in GCHP
−
|Eloise Marais (Leicester)<br>GCST
+
|Betty Croft (Dalhousie)
−
|Science
+
|TOMAS
 +
|Simple
 
|
 
|
 +
*[https://github.com/geoschem/GCHP/pull/221 GCHP PR #221]
 +
*[https://github.com/geoschem/geos-chem/pull/1261 geos-chem PR #1261]
 +
*[https://github.com/geoschem/HEMCO/pull/145 geoschem/HEMCO PR #145]
  
 
|-valign="top"
 
|-valign="top"
−
|Update GCHP to use MAPL v1.0.0 and ESMF v8.0.0 beta snapshot 28
+
|[https://github.com/geoschem/geos-chem/issues/1511 Bug fix for TOMAS sulfate production rates]
−
|Lizzie Lundgren (GCST)
+
|Betty Croft (Dalhousie)
−
|Structural
+
|TOMAS
 +
|Simple
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/1569 geos-chem PR #1569]
  
 
|-valign="top"
 
|-valign="top"
−
|Enable GEOS-Chem "Classic" netCDF (History) diagnostics to be subsetted vertically and horizontally
+
|Update surface methane boundary condition using NOAA flask data
−
|GCST
+
|Lee Murray (Rochester)
−
|Structural
+
|Input data
 +
|Simple
 
|
 
|
−
*Undergoing validation (Jun 2019)
+
*[https://github.com/geoschem/geos-chem/issues/1626 geos-chem issue #1626]
  
 
|-valign="top"
 
|-valign="top"
−
|Add capability to compile GEOS-Chem Classic and GCHP using CMake
+
|Include NO3A1 in Ox family
−
|Liam Bindle (Dalhousie)
+
|Melissa Sulprizio (Harvard)
−
|Structural
+
|Chemistry<br>Diagnostics
 +
|Simple
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Enable accurate cloud pH diagnostic calculation via post-processing
+
|GCHP carbon simulation
−
|Jonathan Moch (Harvard)
+
|Bob Yantosca (Harvard)
−
|Structural
+
|Carbon
 +
|Medium
 
|
 
|
−
*Applies to NetCDF diagnostic only
+
*[https://github.com/geoschem/GCHP/issues/339 geos-chem Issue #339]
  
−
|}
+
|-valign="top"
 +
|GEOS-IT meteorology
 +
|Lizzie Lundgren (Harvard)
 +
|New meteorology option
 +
|Medium
 +
|
 +
*[https://github.com/geoschem/geos-chem/pull/1848 geos-chem PR #1848]
  
−
=== 12.6.0 ===
+
|-valign="top"
−
 
+
|Cloud-J for computing photolysis rates
−
This version will require 1-month and 1-year full-chemistry benchmarks.
+
|Lizzie Lundgren (Harvard)
−
 
+
|Photolysis
−
{| border=1 cellspacing=0 cellpadding=5
+
|Medium
−
|-bgcolor="#CCCCCC"
+
|
−
!width="500px"|Feature
+
*[https://github.com/geoschem/geos-chem/pull/1522 geos-chem PR #1848]
−
!width="200px"|Submitted by
+
*[https://github.com/geoschem/GCClassic/pull/27 gcclassic PR #27]
−
!width="100px"|Type
+
−
!width="300px"|Status
+
  
 +
|-valign="top"
 +
|Mass flux regridding fix in MAPL
 +
|Lizzie Lundgren (Harvard)<br>Seb Eastham (MIT)
 +
|GCHP input regridding
 +
|Medium
 +
|
 +
*[https://github.com/GEOS-ESM/MAPL/pull/2056 GEOS-ESM/MAPL PR #2056]
  
 
|-valign="top"
 
|-valign="top"
−
|[https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018JD029133 N2O5, NO3, NO2 reactive uptake updates]
+
|Improve pressure level computation for GCHP advection
−
|Viral Shah (UW)<br>Lyatt Jaegle (UW)<br>Chris Holmes (FSU)<br>Erin McDuffie (Dalhousie)
+
|Lizzie Lundgren (Harvard)<br>Seb Eastham (MIT)
−
|Science
+
|GCHP advection
 +
|Medium
 
|
 
|
−
*Delivered to GCST (Dec 2018)
 
  
 
|-valign="top"
 
|-valign="top"
−
|HNO3 cold-temperature deposition
+
|GCHP advection diagnostics
−
|Viral Shah (Harvard)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP diagnostics
 +
|Medium
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Bug in aerosol pH calculation when dry
+
|Move Aerosol_Mod module variables to State_Chm
−
|Becky Alexander (UW)<br>Xuan Wang (Harvard)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|Aerosols
 +
|Medium
 
|
 
|
 +
 +
|}
 +
 +
== Prioritized and in the queue ==
 +
 +
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
 +
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="100px"|Delivery status
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Remove isoprene in VBS (leaving aqueous)
+
|New version of CEDS at 0.1 deg
−
|GCST w/ guidance from Sid Pai (MIT)
+
|Dandan Zhang (WashU)
−
|Science
+
|Emissions
 +
|Simple
 +
|Delivered<br>Apr 2023
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
  
 
|-valign="top
 
|-valign="top
−
|Historical biomass burning emissions (1750-2014, BCC4CMIP and LPJ-LMfire)
+
|Update volcano emissions through 2022
−
|Pengfei Liu (Harvard)
+
|Melissa Sulprizio (Harvard)
−
|Science
+
|Emissions
 +
|Simple
 +
|Delivered<br>Sep 2023
 
|
 
|
 +
*https://gmao.gsfc.nasa.gov/gmaoftp/geoscf/volcano_so2/v202302/
  
−
|-valign="top
+
|-valign="top"
−
|Checked GFED4 version used by HEMCO
+
|KORUS-AQ emissions for East Asia (as an option)
−
|Siddhant Pai (MIT)
+
|Katie Travis (NASA)
−
|Science
+
|Emissions
 +
|Simple
 +
|Delivered<br>Apr 2023
 
|
 
|
−
*Older versions have bugs
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Chemistry_Issues#Correcting_ozone_from_the_height_of_the_lowest_model_level_to_the_surface|Surface diagnostic (O3, HNO3) with user-selected height]]
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
−
|Katie Travis (MIT)<br>GCST
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
−
|Science
+
|Emissions
 +
|Simple
 +
|Delivered<br>Jul 2022
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updated aerosol hygroscopicity and optics
+
|ALK4 & R4N2 chemistry
−
|Robyn Latimer (Dalhousie)<br>Jun Meng (Dalhousie)
+
|Jared Brewer (UMN)
−
|Science
+
|Chemistry
 +
|TBD
 +
|Not delivered
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
 +
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., submitted 2023.]
  
 
|-valign="top"
 
|-valign="top"
−
|Simple parameterization for CO2 dependence of stomatal resistance
+
|Update reactions with new JPL & IUPAC recommendations
−
|Amos Tai (CUHK)
+
|Kelvin Bates (NOAA CSL)
−
|Science
+
|Chemistry
 +
|Simple
 +
|Delivered<br>Apr 2023
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/1765 geos-chem PR 1765]
 +
*[https://acmg.seas.harvard.edu/sites/projects.iq.harvard.edu/files/acmg/files/bates2023_jpl.pdf Bates, K.H., et al., submitted to Geophys. Model Dev., 2023.]
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/pull/32 Aerosol nitrate photolysis option] (off by default)
+
|[https://github.com/geoschem/geos-chem/issues/1747 Parameterization of SNA and OM dry size]
−
|Tomas Sherwen (York)<br>Prasad Kasibhatla (Duke)
+
|Haihui Zhu (WashU)
−
|Science
+
|Aerosols
 +
|Simple
 +
|Delivered<br>Aug 2023
 
|
 
|
−
*Delivered to GCST (Mar 2019)
+
*[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"
 +
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
 +
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
 +
|Emissions
 +
|TBD
 +
|Not delivered
 +
|
 +
*See [https://github.com/geoschem/geos-chem/issues/1288 geoschem/geos-chem #1288]
  
−
=== 12.7.0 ===
 
−
 
−
This version will require a 1-month full-chemistry benchmark.
 
−
 
−
{| border=1 cellspacing=0 cellpadding=5
 
−
|-bgcolor="#CCCCCC"
 
−
!width="500px"|Feature
 
−
!width="200px"|Submitted by
 
−
!width="100px"|Type
 
−
!width="300px"|Status
 
  
 
|-valign="top"
 
|-valign="top"
−
|Subgrid cloud NOy chemistry
+
|[https://github.com/geoschem/geos-chem/issues/1928 Updated 0.1x0.1 timezone file accounting for daylight savings]
−
|Chris Holmes (FSU)
+
|Karn Vohra (UCL)
−
|Science
+
|Emissions
 +
|Simple
 +
|Not delivered
 
|
 
|
  
 
|}
 
|}
  
−
=== 12.8.0 ===
+
== Ready to go in ==
  
−
This version will require 1-month and 1-year full-chemistry benchmarks.
+
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  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
−
!width="500px"|Feature
+
!width="200px"|Feature
−
!width="200px"|Submitted by
+
!width="200px"|Contributor(s)
−
!width="100px"|Type
+
!width="100px"|Model scope
−
!width="300px"|Status
+
!width="100px"|Delivery status
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Wet deposition parameterization
+
|Geologic emission of ethane and propane
−
|Kelvin Bates (Harvard)<br>GCST
+
|Matthew Rowlinson and Mat Evans(York)
−
|Science
+
|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
−
|}
+
−
 
+
−
=== 12.9.0 ===
+
−
 
+
−
This version will require 1-month and 1-year full-chemistry benchmarks.
+
−
 
+
−
{| border=1 cellspacing=0 cellpadding=5
+
−
|-bgcolor="#CCCCCC"
+
−
!width="500px"|Feature
+
−
!width="200px"|Submitted by
+
−
!width="100px"|Type
+
−
!width="300px"|Status
+
  
 
|-valign="top"
 
|-valign="top"
−
|[https://www.geosci-model-dev.net/12/111/2019/gmd-12-111-2019.pdf Aromatic VOC chemistry]
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
−
|Yingying Yan (PKU)<br>Jintai Lin (PKU)
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Science
 
|Science
 +
|Delivered<br>Feb 2021
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
  
−
|}
+
|-valign="top"
 +
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
 +
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
 +
|Emissions
 +
|Delivered<br>Jul 2021
 +
|
 +
*Data involves many files- need to think about temporal frequency
  
−
== Priorities not yet assigned to a particular version ==
+
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
 +
|Shixian Zhai (Harvard)
 +
|Emissions
 +
|Delivered
 +
|
 +
*Need permission from Qiang Zhang (Tsinghua U.) to distribute data
  
−
The following items have been identified as priorities for GEOS-Chem, but have not yet been assigned to a particular GEOS-Chem version.
+
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
 +
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
 +
|Chemistry
 +
|Delivered<br>June 2023
 +
|
 +
*[https://acp.copernicus.org/articles/22/12367/2022/acp-22-12367-2022.html Pérez-Peña, M.P. et al., ACP, 2022.]
 +
*Implemented in v12.5, needs to be brought up to current version
  
−
=== Ready to go in ===
 
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|-bgcolor="#CCCCCC"
+
|DMS Chemistry
−
!width="500px"|Feature
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
−
!width="200px"|Submitted by
+
|Chemistry
−
!width="100px"|Type
+
|Not delivered
−
!width="300px"|Status
+
|
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+
|Organic acids (RCOOH)
 +
|Katie Travis (NASA)
 +
|Chemistry
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|Implement H2 chemistry in UCX
+
|Improve carbon & nitrogen conservation in reactions
−
|Chris Holmes (FSU)
+
|Kelvin Bates (Harvard)
−
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Joint CO, CO2, CH4 simulation
+
|Blowing snow sea salt in TOMAS
−
|Beata Bukosa (Wollongong)
+
|Betty Croft (Dalhousie)
−
|Science
+
|Aerosols
 +
|Not delivered
 
|
 
|
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Emissions and surface fluxes updates
+
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
−
 
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
−
|-valign="top
+
|Hg simulation
−
|Updated Streets Hg emissions
+
|Not delivered
−
|Colin Thackray (Harvard)
+
−
|Science
+
 
|
 
|
  
−
|-valign="top
+
|-valign="top"
−
|Updated EDGAR 4.3 Hg emissions
+
|WRF-GC Hg simulation
−
|Amanda Giang (UBC)
+
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
−
|Science
+
|Hg simulation<br>WRF-GC
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Offline CLM Harmonization
+
|Updated HgII gas-partical partitioning
−
|Anthony Wong (BU)<br>Jeff Geddes (BU)
+
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
−
|Science
+
|Hg simulation
 +
|Not delivered
 
|
 
|
−
 
+
*Should be option, not default
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+
  
 
|-valign="top"
 
|-valign="top"
−
|Arctic marine SOA
+
|Dry deposition to F90 (readability)
−
|Betty Croft (Dalhousie)
+
|Chris Holmes (FSU)
−
|Science
+
|Dry deposition
 +
|Not delivered
 
|
 
|
−
*Details on wiki only, not in standard code
 
  
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+
== Almost there (< 6 months) ==
  
−
=== Almost there (< 6 months) ===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
  
−
{| border=1 cellspacing=0 cellpadding=5
+
{|border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
−
!width="500px"|Item
+
!width="200px"|Feature
−
!width="200px"|Author(s)
+
!width="200px"|Contributor(s)
−
!width="100px"|Type
+
!width="100px"|Model scope
−
!width="300px"|Status
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Diagnostic to archive XCO2, XCO, and XCH4
+
|PPN+hv, PPN+OH
−
|Dylan Jones (Toronto)
+
|Robert Ryan (UCL)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
+
|MBO
−
|Kazu Miyazaki (JPL)
+
|Michael Vermeuel (UMN)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Evaluate the impact on the tropsophere of using the family approach for transport in the stratosphere
+
|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]
−
|Christoph Keller (NASA/GMAO)  
+
|Seb Eastham (MIT)
 
|Science
 
|Science
 
|
 
|
 +
  
 
|-valign="top"
 
|-valign="top"
−
|Examine differences in the lightning NOx schemes in GEOS-Chem and GMI
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
−
|Christoph Keller (NASA/GMAO)<br>Lee Murray (Rochester)
+
|Bob Yantosca (Harvard)
−
|Science
+
|Aerosols<br>Structural
 
|
 
|
 +
*Ongoing
  
 
|-valign="top"
 
|-valign="top"
−
|Small alkyl nitrate chemistry
+
|Re-binning of off-line sea salt and dust for use in TOMAS
−
|Jenny Fisher (Wollongong)
+
|Betty Croft (Dalhousie)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Isoprene chemistry
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
−
|Kelvin Bates (Harvard)
+
|Betty Croft (Dalhousie)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|HMS chemistry
+
|ML algorithms for bulk aerosols
−
|Jonathan Moch (Harvard)
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Heterogeneous sulfate production
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
−
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Shixian Zhai (Harvard)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Eliminate 27% scaling on semivolatile fire emissions for complex scheme
+
|Updates to Hodzic SOA scheme
−
|Sidhant Pai (MIT)
+
|Jared Brewer (Harvard)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|BrC aging
+
|Automated reduction in isoprene scheme
−
|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
+
|Dan Westervelt (Lamont-Doherty)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|APM update and integration with most recent GC version
+
|Brown carbon chemsitry
−
|Gan Luo (SUNY-Albany)<br>Fangqun Yu (SUNY-Albany)
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Retire carbon-based units for VOCs
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
−
|GCST
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
−
|Science
+
|Convection
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Ozone deposition to the ocean
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
−
|Ryan Pound (York)<br>Mat Evans (York)
+
|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"
−
|Latitudinally and monthly resolved fixed surface concentrations for GGs back to 1850
+
|Updated biomass burning emission factors and species
−
|Tomás Sherwen (York)<br>Lee Murray (Rochester)
+
|Tess Carter (MIT)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Update of US emissions to NEI16
+
|Updated offline sea salt emissions
−
|Barron Henderson (EPA)
+
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updated surface ocean dissolved Hg0 from MITgcm
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
−
|Yanxu Zhang (Nanjing)
+
|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"
−
|HEMCO improvements
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
−
|Christoph Keller (NASA/GMAO)<br>GCST
+
|Bob Yantosca (Harvard)
−
|Structural
+
|Model performance
 
|
 
|
 +
*Ongoing (will be done as time allows)
  
 
|-valign="top"
 
|-valign="top"
−
|Cmake in GEOS-Chem
+
|Retire all BPCH diagnostics
−
|Liam Bindle (Dalhousie)
+
|Bob Yantosca (Harvard)
−
|Structural
+
|Diagnostics
 
|
 
|
 +
*Can be done following the [https://github.com/geoschem/geos-chem/pull/1569 TOMAS update for GCHP]
  
 
|-valign="top"
 
|-valign="top"
−
|One-Way Coupling w/ GISS ModelE3
+
|Assess memory leak in GCHP
−
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|Killian Murphy (York)
−
|Structural
+
|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"
−
|Online Coupling w/ GEOS CCM
+
|Hybrid MPI-OpenMP in GCHP
−
|Lizzie Lundgren (Harvard)<br>Lu Hu (U. MT)<br>Christoph Keller (NASA/GMAO)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
−
|Structural
+
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Shared Socioeconomic Pathways Emission Inventories
+
|Improve run directory templating and creation with init_rd.sh and shared directories
−
|Hong Liao (NUIST)
+
|Jourdan He (WashU)
−
|Science
+
|Run directories
 +
|
 +
 
 +
|-valign="top"
 +
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
 +
|GCST?
 +
|Documentation
 
|
 
|
  
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+
== Over the horizon (6-12 months) ==
  
−
=== Over the horizon (6-12 months) ===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
−
!width="500px"|Item
+
!width="200px"|Feature
−
!width="200px"|Author(s)
+
!width="200px"|Contributor(s)
−
!width="100px"|Type
+
!width="100px"|Model scope
−
!width="300px"|Status
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Update OCS simulation in the standard code
+
|Snow / Icy Bromine
−
|Kevin Bowman (JPL)
+
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Examine what are the differences in the PSC implementation in GEOS-Chem and GMI and assess the implications of these differences for startospheric ozone
+
|Monoterpene oxidation scheme
−
|Susan Strahan (Goddard)<br>Sebastian Eastham (MIT)
+
|Jessica Haskins (MIT)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Rainout and washout update
+
|Fire related VOCs including furans
−
|Gan Luo(SUNY-Albany)<br>Fangqun Yu (SUNY-Albany)
+
|Lu Hu (UMT)<br>Lixu Jin (UMT)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Rediagnosis of RAS convection in GEOS-Chem
+
|Extension of UCX into the mesosphere
−
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
+
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|New schedule for tracer transport benchmarks (FP change, scavenging change, or major release)
+
|Methane flux ingestion
−
|Andrea Molod (NASA/GMAO)
+
|Eloise Marais (UCL)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Methanol as part of standard chemical mechanism
+
|Dust non-sphericity impacts on surface chem and optical properties
−
|Dylan Millet (U Minnesota)<br>Katie Travis (NASA)
+
|Inderjeet Singh (WashU)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updated cloud water pH
+
|Size-resolved stratospheric aerosol
−
|Viral Shah (Harvard)<br>Jonathan Moch (Harvard)
+
|Seb Eastham (MIT)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Halogen chemistry update
+
|Extend aerosol settling
−
|Tomas Sherwen (York)<br>Xuan Wang (Harvard)<br>Shuting Zhai (UW)
+
|Eloise Marais (UCL)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Methylethylketone chemistry
+
|Stratospheric aerosol APM
−
|Jared Brewer (CSU)
+
|Fangqun Yu (SUNY)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Add sulfate dependence to SOA yield from isoprene in simple SOA
+
|Plume-in-grid model
−
|Elo&iuml;se Marais (Leicester)
+
|Hongwei Sun (Harvard)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Trace metal simulation
+
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
−
|Junwei Xu (Dalhousie)
+
|Lee Murray (Rochester)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Hg gas-phase photo-reduction
+
|Seb aircraft emissions beyond recent 2019 update
−
|Colin Thackray (Harvard)
+
|Seb Eastham (MIT)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Move GEOS-Chem Classic run directory creation from Unit Tester to source code
+
|FRP-based fire emsisions for eastern US at 0.2 deg
−
|GCST
+
|Charlie Fite (FSU)
−
|Structural
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Dynamic diagnostic array size allocation based on settings in HISTORY.rc
+
|Hg iodine chemistry
−
|GCST
+
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
−
|Structural
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Removal of binary punch diagnostics
+
|Hg simulation in GCHP
−
|GCST
+
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
−
|Structural
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|GCPy 1-year benchmark and continued development
+
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
−
|GCST
+
|Yanxu Zhang (Nanjing U.)
−
|Structural
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
+
|Dry deposition diagnostics by land cover
−
|Amos Tai (CUHK)
+
|Holly Nowell (FSU)
−
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Canopy Physics Model
+
|Dry deposition process diagnostics
−
|Sam Silva (MIT)
+
|Holly Nowell (FSU)
 +
|Diagnostics
 +
|
 +
 
 +
|-valign="top"
 +
|Isotope simulation for CO and CH4 in GCHP
 +
|Lee Murray (Rochester)
 +
|Carbon simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
 +
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
 +
|Emissions<br>CH4 simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Modularization of aerosols code for interface with GOCART in GEOS
 +
|Christoph Keller (GMAO)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Landcover/Fire Emissions Offline LPJlmfire
+
|Improve load balancing in GCHP
−
|Loretta Mickley (Harvard)
+
|Seb Eastham (MIT)
−
|Science
+
|Model performance
 +
|
 +
 
 +
|-valign="top"
 +
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
 +
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
 +
|Transport
 +
|
 +
 
 +
|-valign="top"
 +
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
 +
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
 +
|Transport
 +
|
 +
 
 +
|-valign="top"
 +
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
 +
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
 +
|Transport
 
|
 
|
  
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+
== Longer term (12-24 months)==
  
−
=== Longer term (12-24 months)===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
−
!width="500px"|Item
+
!width="200px"|Feature
−
!width="200px"|Author(s)
+
!width="200px"|Contributor(s)
−
!width="100px"|Type
+
!width="100px"|Model scope
−
!width="300px"|Status
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Implement isotope simulation for CO and CH4 in GCHP
+
|Updates to Aromatic chemistry
−
|Lee Murray (Rochester)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Migrate LETFK DA scheme to GCHP
+
|Nitrate photolysis
−
|Kazu Miyazaki (JPL)
+
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Super fast chemistry scheme
+
|In aerosol chemistry Halogens
−
|Benjamin Brown-Steiner (AER)<br>Makoto Kelp (Harvard)
+
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Add non-volatile cations to ISORROPIA
+
|Benchmark box model of GC Chemistry
−
|Becky Alexander (UW)
+
|Katie Travis (NASA)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Update Europe emissions to EMEP 2016
+
|Alkyl nitrates Alk7, PHAN
−
|Eloise Marais (Leicester)
+
|Katie Travis (NASA)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|MEGAN3
+
|Add stratospheric ozone species to full-chemistry simulations
−
|Sam Silva (MIT)<br>Jen Kaiser (GIT)<br>Yuxuan Wang (UH)
+
|Lee Murray (Rochester)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|DMS oxidation scheme updating
+
|Perchlorate chemistry
−
|Becky Alexander (UW)<br>Qianjie Chen (UW)
+
|Yuk Chun Chan (UWAB)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Streamlining of specialty simulations through HEMCO and KPP
+
|Explicit heterogeneous sulfate chemistry
−
|GCST<br>Chris Holmes (FSU)<br>Colin Thackray for POPs (Harvard)<br>Peter Ivatt (York) for PAH
+
|Katie Travis (NASA)<br>Becky Alexander (UT)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Hg in WRF-GC
+
|ISORROPIA-lite
−
|Yanxu Zhang (Nanjing)
+
|Becky Alexander (UW)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Hg with blowing snow
+
|HOx and ozone "emissions" from lightning as option in model to play with
−
|Yanxu Xhang (Nanjing)
+
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updated treatment of Hg in ocean
+
|Sea salt aerosol from sea ice leads
−
|Chris Holmes (FSU)
+
|Hannah Horowitz (U. Illinois)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|GTMM updates
+
|Drought-stress algorithm
−
|Ben Geyman (Harvard)
+
|Wei Li (U. Houston)
−
|Science
+
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Complex / multicomplex variables
+
|Biomass burning injection height profiles
−
|Shannon Capps (Drexel)
+
|Inderjeet Singh (WashU)
−
|Structural
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Build KPP when you compile GC
+
|OCIM integration
−
|GCST
+
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
−
|Structural
+
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Restructure source code folders
+
|Updating landcover products in GEOS-Chem
−
|GCST
+
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
−
|Structural
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Archived CMIP6 Met Products for GEOS-Chem Input
+
|Dry deposition physical improvement
−
|Lee Murray (Rochester)
+
|Chris Holmes (FSU)
−
|Science
+
|Dry deposition
 
|
 
|
  
−
|}
+
|-valign="top"
 +
|TOMAS WRF-GC in regional Thailand simulation
 +
|Win Trivitayanurak (Chulalongkorn U)
 +
|Aerosols
 +
|
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+
|}
−
 
+
−
----------------
+
−
 
+
−
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
+

Latest revision as of 23:54, 25 September 2023

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.

Patch version in development Version in development
GEOS-Chem 14.2.1 GEOS-Chem 14.2.0

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
TOMAS in GCHP Betty Croft (Dalhousie) TOMAS Simple
Bug fix for TOMAS sulfate production rates Betty Croft (Dalhousie) TOMAS Simple
Update surface methane boundary condition using NOAA flask data Lee Murray (Rochester) Input data Simple
Include NO3A1 in Ox family Melissa Sulprizio (Harvard) Chemistry
Diagnostics 		Simple
GCHP carbon simulation Bob Yantosca (Harvard) Carbon Medium
GEOS-IT meteorology Lizzie Lundgren (Harvard) New meteorology option Medium
Cloud-J for computing photolysis rates Lizzie Lundgren (Harvard) Photolysis Medium
Mass flux regridding fix in MAPL Lizzie Lundgren (Harvard)
Seb Eastham (MIT) 		GCHP input regridding Medium
Improve pressure level computation for GCHP advection Lizzie Lundgren (Harvard)
Seb Eastham (MIT) 		GCHP advection Medium
GCHP advection diagnostics Lizzie Lundgren (Harvard) GCHP diagnostics Medium
Move Aerosol_Mod module variables to State_Chm Lizzie Lundgren (Harvard) Aerosols 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
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple Delivered
Apr 2023
Update volcano emissions through 2022 Melissa Sulprizio (Harvard) Emissions Simple Delivered
Sep 2023
KORUS-AQ emissions for East Asia (as an option) Katie Travis (NASA) Emissions Simple Delivered
Apr 2023
Global continental chlorine (pCl and HCl) emissions Bingqing Zhang (Georgia Tech)
Pengfei Liu (Georgia Tech) 		Emissions Simple Delivered
Jul 2022
ALK4 & R4N2 chemistry Jared Brewer (UMN) Chemistry TBD Not delivered
Update reactions with new JPL & IUPAC recommendations Kelvin Bates (NOAA CSL) Chemistry Simple Delivered
Apr 2023
Parameterization of SNA and OM dry size Haihui Zhu (WashU) Aerosols Simple Delivered
Aug 2023
New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa) 		Emissions TBD Not delivered


Updated 0.1x0.1 timezone file accounting for daylight savings Karn Vohra (UCL) Emissions Simple Not delivered

Ready to go in

Features listed in this table are ready to go in but have either not been delivered or are not yet prioritized for integration into GEOS-Chem.

Feature Contributor(s) Model scope Delivery status Notes and References
Geologic emission of ethane and propane Matthew Rowlinson and Mat Evans(York) Emissions Delivered
Jan 2023
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam(CUHK)
Amos Tai (CUHK) 		Science Delivered
Feb 2021
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100 Yang Li (Baylor University)
Loretta Mickley (Harvard) 		Emissions Delivered
Jul 2021
  • Data involves many files- need to think about temporal frequency
MEIC (China regional) for 2000-2017 at 0.5x0.625 deg Shixian Zhai (Harvard) Emissions Delivered
  • Need permission from Qiang Zhang (Tsinghua U.) to distribute data
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
Stratospheric adjustment with RRTMG in GEOS-Chem Seb Eastham (MIT) Science


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
ISORROPIA-lite Becky Alexander (UW) Aerosols
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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