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 ==
+
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="300px"|Mergeable at any time
 +
!width="200px"|Version in development
  
−
=== 12.9.0 ===
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|-valign="top"
 +
|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
 +
|align="center"|'''[[GEOS-Chem 14.5.0]]'''
  
−
<span style="color:darkorange">'''This version is now under development.  Please see [[GEOS-Chem 12#12.9.0|the ''GEOS-Chem 12'' wiki page]] for more details.'''''</span>
+
|}
  
−
=== 13.0.0 ===
+
== Feature integration in progress ==
 +
 
 +
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
+
!width="200px"|Feature
−
!width="200px"|Submitted by
+
!width="200px"|Contributor(s)
−
!width="100px"|Type
+
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 
!width="300px"|Notes and References
 
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Updates that will affect full-chemistry simulations
+
|ALK4 & R4N2 chemistry
 +
|Jared Brewer (UMN)
 +
|Chemistry
 +
|Simple
 +
|
 +
*[https://github.com/geoschem/geos-chem/pull/2352 geos-chem PR #1625]
 +
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., 2023.]
  
 
|-valign="top"
 
|-valign="top"
−
|Retire carbon-based units for VOCs
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
−
|GCST
+
|Yi Wang (Iowa)<br>Jun Wang (Iowa)
−
|Science
+
|Emissions
 +
|Medium
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Updates that will NOT affect full-chemistry simulations
+
|Fix pressure handling in HEMCO standalone
 +
|Melissa Sulprizio (Harvard)
 +
|HEMCO
 +
|Simple
 +
|
 +
*[https://github.com/geoschem/HEMCO/issues/277 HEMCO issue #277]
  
 
|-valign="top"
 
|-valign="top"
−
|Retire the GNU Make build system in both GEOS-Chem Classic and GCHP and replace with CMake
+
|Fix obspack - not working in 14.4.0
−
|Liam Bindle (WashU)<br>GCST
+
|Bob Yantosca (Harvard)
−
|Structural
+
|Diagnostics
 +
|Medium
 +
|
 +
*[https://github.com/geoschem/geos-chem/issues/2328 geos-chem issue #2328]
 +
|-valign="top"
 +
|Horizontal flux regridding fix in MAPL
 +
|Tom Clune (GMAO)
 +
|GCHP
 +
|Medium
 
|
 
|
 +
*[https://github.com/geoschem/MAPL/pull/36 MAPL PR #36]
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/283 Retire the GEOS-Chem Unit Tester repository and move GEOS-Chem run directory creation to the GEOS-Chem source code repository]
+
|Cloud-J 7.7.2 for greater flexibility in external models
−
|Melissa Sulprizio (GCST)
+
|Lizzie Lundgren (Harvard)
−
|Structural
+
|Photolysis
 +
|Medium
 
|
 
|
 +
*[https://github.com/geoschem/Cloud-J/pull/17 Cloud-J PR #17]
 +
*[https://github.com/geoschem/geos-chem/pull/2342 geos-chem PR #2342]
 +
*[https://github.com/geoschem/geos-chem/pull/2353 geos-chem PR #2553]
 +
*[https://github.com/geoschem/Cloud-J/pull/19 Cloud-J PR #19]
  
 
|-valign="top"
 
|-valign="top"
−
|Use GEOS-Chem and HEMCO as separate git submodules inside a new [https://github.com/geoschem/geos-chem-classic GEOS-Chem Classic wrapper repository]
+
|GCHP run directory improvements for mass flux, stretched grid, and GEOS-IT runs
−
|Lizzie Lundgren (GCST)
+
|Lizzie Lundgren (Harvard)
−
|Structural
+
|GCHP
 +
|Medium
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/2326 geos-chem PR #2326]
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to HEMCO for compatibility with CESM
+
|Fixes for GEOS-Chem 14.4 in CESM
−
|Haipeng Lin (Harvard)
+
|Haipeng Lin (Harvard)<br>Lizzie Lundgren (Harvard)
−
|Structural
+
|CESM
 +
|Medium
 
|
 
|
−
*ongoing
+
*[https://github.com/geoschem/geos-chem/pull/2348 geos-chem PR #2348]
 +
*[https://github.com/geoschem/geos-chem/pull/2349 geos-chem PR #2349]
 +
* More PRs in progress
 +
 
 +
|}
 +
 
 +
== 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"
−
|[https://github.com/geoschem/geos-chem/issues/270 Reduction of memory for HISTORY diagnostics with a species dimension]
+
|New version of CEDS at 0.1 deg
−
|Bob Yantosca (GCST)
+
|Dandan Zhang (WashU)
−
|Structural
+
|Emissions
 +
|Simple
 +
|Delivered June 2024
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/311 Removal of HEMCO code from within the non-local PBL mixing modules]
+
|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
−
|Bob Yantosca (GCST)
+
|Lizzie Lundgren (Harvard)
−
|Structural
+
|GC-Classic
 +
|Medium
 
|
 
|
 +
|
 +
*[https://github.com/geoschem/HEMCO/issues/18 HEMCO issue #18]
 +
 +
|}
 +
 +
== Ready to go in ==
 +
 +
Features listed in this table are ready to go in but have either not been delivered or are not yet prioritized for integration into GEOS-Chem.
 +
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Delivery status
 +
!width="300px"|Notes and Refereneces
  
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Features only affecting GCHP:
 
  
 
|-valign="top"
 
|-valign="top"
−
|Retire the existing GCHP repository and replace with a new wrapper repository that uses ESMF as an external library and integrates GEOS-Chem and NASA/GMAO GEOS-ESM git repositories as git submodules
+
|Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol
−
|Lizzie Lundgren (GCST)
+
|Camilo Serrano (McGill)<br>Andreas Zuend (McGill)
−
|Structural
+
|Aerosols
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Separate HEMCO from GEOS-Chem to use as an ESMF gridded component in GCHP
+
|Extend aerosol settling
−
|Lizzie Lundgren (GCST)
+
|Eloise Marais (UCL)
−
|Structural
+
|Aerosols
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Enable a stretched grid capability in GCHP to run global simulations at regional high resolution
+
|Comment back in Ca, Mg, and K cations in aerosol thermo (HETP)
−
|Liam Bindle (WashU)
+
|Becky Alexander (UW)
−
|Structural
+
|Aerosols
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates for compatibility with MAPL 2.1.
+
|Seasalt aerosol from sea ice leads (2002-2011)
−
|Lizzie Lundgren (GCST)<br>Liam Bindle (WashU)
+
|Hannah Horrowitz (UIUC)
−
|Structural
+
|Aerosols
 +
|Not delivered
 
|
 
|
−
This update fixes the remaining outstanding GCHP issues open since 12.5:
+
*Offline and online, ready to go in HEMCO (optional in addition to existing seasalt emissions)
−
*[https://github.com/geoschem/gchp/issues/32 memory leak]
+
−
*[https://github.com/geoschem/gchp/issues/33 input resolution limitation]
+
  
−
|}
+
|-valign="top"
 +
|P/L species should not contribute to the error norm
 +
|Obin Sturm (USC)
 +
|Chemistry
 +
|Not delivered
 +
|
  
−
== Priorities not yet assigned to a particular version ==
+
|-valign="top"
 +
|Additional 6 peroxynitrates (many PANs like species); improve ALK4 & add ALK6
 +
|Katie Travis (NASA LARC)
 +
|Chemistry
 +
|Not delivered
 +
|
  
−
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"
 +
|Monoterpene oxidation more species & oxidation products
 +
|Kevin Bates (CU Boulder)
 +
|Chemistry
 +
|Not delivered
 +
|
  
−
=== Ready to go in ===
+
|-valign="top"
 +
|PPN photolysis
 +
|Eloise Marais (UCL)
 +
|Chemistry
 +
|Not delivered
 +
|
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|-bgcolor="#CCCCCC"
+
|Global organic N dep from various emissions; nitrate aromatics updates
−
!width="500px"|Feature
+
|May Fu (SUSTech)
−
!width="200px"|Submitted by
+
|Chemistry +<br>Deposition
−
!width="100px"|Type
+
|Not delivered
−
!width="300px"|Notes
+
|
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+
|ALK4 from biogenic vs anthro
 +
|Jared Brewer (UMN)
 +
|Chemistry
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|Improved wet scavenging (Luo et al., 2020)
+
|Dry deposition to F90 to improve readability
−
|Gan Luo (Albany)<br>Fanqun Yu (Albany)
+
|Chris Holmes (FSU)
−
|Science
+
|Dry Deposition
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Implement H2 chemistry in UCX
+
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
 +
|Joey Lam  (CUHK)<br>Amos Tai (CUHK)
 +
|Dry deposition
 +
|Delivered<br>Feb 2021
 +
|
 +
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
 +
 
 +
|-valign="top"
 +
|FRP-based fire emissions for eastern US at 0.2 (2019-2020)
 
|Chris Holmes (FSU)
 
|Chris Holmes (FSU)
−
|Science
+
|Emissions
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Joint CO, CO2, CH4 simulation
+
|China agriculture NH3 emissions
−
|Beata Bukosa (Wollongong)
+
|Amos Tai (CUHK)
−
|Science
+
|Emissions
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Jun 2019)
 
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Emissions and surface fluxes updates
+
|T-dependent anthropogenic VOCs
 +
|May Fu (SUSTech)
 +
|Emissions
 +
|Not delivered
 +
|
 +
*Option. Requires processing existing anthropogenic VOC emissions to generate offline emissions to read in. Parameterised for China.
  
 +
|-valign="top"
 +
|New source functions for transport tracers beryllium-7 and beryllium-10
 +
|Minjie Zheng (ETH)
 +
|Emissions
 +
|Delivered<br>June 2024
 +
|
 +
*Available at https://zenodo.org/records/8372652
  
 
|-valign="top"
 
|-valign="top"
−
|Offline CLM Harmonization
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
−
|Anthony Wong (BU)<br>Jeff Geddes (BU)
+
|Yang Li (Baylor U)<br>Loretta Mickley (Harvard)
−
|Science
+
|Emissions
 +
|Delivered
 
|
 
|
 +
*Data involves many files- need to think about temporal frequency
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+
|Australian emissions
 +
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
 +
|Emissions
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|Arctic marine SOA
+
|Hg geogenic emissions (volcanic, rock weathering)
−
|Betty Croft (Dalhousie)
+
|Eric Roy (MIT)
−
|Science
+
|Emissions
 +
|Not delivered
 
|
 
|
−
*Details on wiki only, not in standard code
+
 
 +
|-valign="top"
 +
|Hg biomass burning - FINN2.5 & GFED4
 +
|Eric Roy (MIT)
 +
|Emissions
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|BCC-GC online
 +
|Lin Zhang (PKU)
 +
|External Model
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|GC-YIBS with online fire emissions
 +
|Xu Yue (NUIST)<br>Hong Liao (NUIST)
 +
|External Model
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|GISS-GC offline (GCAP)
 +
|Lee Murray (Rochester)
 +
|GCAP
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|Archived TCR-2 OH fields for carbon simulations
 +
|Kazu Miyazaki (JPL)
 +
|Input data
 +
|Not delivered
 +
|
 +
*This will be the default OH, but users will have the option of selecting other OH fields
  
 
|}
 
|}
  
−
--[[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"|Notes
+
!width="420px"|Notes and References
 +
 
  
 
|-valign="top"
 
|-valign="top"
−
|Provide climatologies for lightning NOx, volcano, and open fire emissions
+
|Capture all trop and PBL height changes in budget diagnostics
−
|GCST
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
−
|Science
+
|Diagnostics
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
  
 
|-valign="top"
 
|-valign="top"
−
|[https://www.geosci-model-dev.net/12/111/2019/gmd-12-111-2019.pdf Aromatic VOC chemistry]
+
|Dust non-sphericity impacts on optical properties
−
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
+
|Inderjeet Singh (WashU)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|C2H4 and C2H2 chemistry
+
|Fixes to stratospheric aerosol settling
−
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
+
|Connor Barker (UCL)<br>Eloise Marais (UCL)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Diagnostic to archive XCO2, XCO, and XCH4
+
|DMS chemistry in v14
−
|Dylan Jones (Toronto)
+
|Linia Tashmim (UCR)<br>Will Porter (UCR)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
+
|KPP standalone + 3D Interface
−
|Kazu Miyazaki (JPL)
+
|Obin Sturm (USC)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Evaluate the impact on the tropsophere of using the family approach for transport in the stratosphere
+
|Load balancing in chemistry solver (GCHP)
−
|Christoph Keller (NASA/GMAO)  
+
|Zhouran (Jordan) Sun (WashU)
−
|Science
+
|Chemistry +<br>Performance
 
|
 
|
−
*Important when [[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|extending UCX into the mesosphere]]
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+
|UCX chemistry in mesosphere (GCHP/GCClassic)
−
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
+
|Helena McDonald (MIT)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Examine differences in the lightning NOx schemes in GEOS-Chem and GMI
+
|Updated aromatic oxidation
−
|Christoph Keller (NASA/GMAO)<br>Lee Murray (Rochester)
+
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|HMS chemistry
+
|MCO3 uptake by cloud forming MP; leading to lower PAN
−
|Jonathan Moch (Harvard)
+
|Laura Yang (Harvard)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Heterogeneous sulfate production
+
|Implement isotope simulation for CH4 in the carbon simulation
−
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Lee Murray (Rochester)
−
|Science
+
|Chemistry
 
|
 
|
 +
*Will have to change negative emissions from soil to a first-order loss process
  
 
|-valign="top"
 
|-valign="top"
−
|BrC aging
+
|Active mesospheric chemistry
−
|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
+
|Helena McDonald (MIT)<br>Seb Eastham (ICL)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Update of US emissions to NEI16
+
|Documentation for adding additional aerosol species
−
|Barron Henderson (EPA)
+
|Connor Barker (UCL)
−
|Science
+
|Documentation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updated surface ocean dissolved Hg0 from MITgcm
+
|Column diagnostics
−
|Yanxu Zhang (Nanjing)
+
|Lizzie Lundgren (Harvard)<br>Viral Shah (GMAO)
−
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|One-Way Coupling w/ GISS ModelE3
+
|TOMAS rate diagnostics -- improve performance
−
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|Betty Croft (WashU/Dal)
−
|Structural
+
|Diagnostics +<br>Performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Shared Socioeconomic Pathways Emission Inventories
+
|Archive gamma values from heterogeneous chemistry
−
|Hong Liao (NUIST)
+
|Bob Yantosca (Harvard)
−
|Science
+
|Diagnostics
 
|
 
|
  
−
|}
+
|-valign="top"
 +
|RRTMG Documentation
 +
|GCST
 +
|Documentation
 +
|
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+
|-valign="top"
 +
|Canopy Physics Model
 +
|Sam Silva (MIT)
 +
|Dry Deposition
 +
|
  
−
=== Over the horizon (6-12 months) ===
+
|-valign="top"
 +
|Dry deposition diagnostics by land cover
 +
|Holly Nowell (FSU)<br>Chris Holmes (FSU)
 +
|Dry Deposition
 +
|
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|- bgcolor="#cccccc"
+
|Dry deposition process diagnostics
−
!width="500px"|Item
+
|Holly Nowell (FSU)<br>Chris Holmes (FSU)
−
!width="200px"|Author(s)
+
|Dry Deposition
−
!width="100px"|Type
+
|
−
!width="300px"|Notes
+
  
 
|-valign="top"
 
|-valign="top"
−
|Update OCS simulation in the standard code
+
|Biomass burning for TOMAS
−
|Kevin Bowman (JPL)
+
|Nicole June (CSU)
−
|Science
+
|Emissions +<br>Microphysics
 
|
 
|
  
 
|-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
+
|Historic biomass burning (1750-2010)
−
|Susan Strahan (Goddard)<br>Sebastian Eastham (MIT)
+
|Pengfei (Gtech)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Rediagnosis of RAS convection in GEOS-Chem
+
|Rice methane emissions
−
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
+
|Zichong Cheng (Harvard)
−
|Science
+
|Emissions+<br>Carbon simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|New schedule for tracer transport benchmarks (FP change, scavenging change, or major release)
+
|Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.)
−
|Andrea Molod (NASA/GMAO)
+
|Katie Travis (NASA)<br>Kelvin Bates (CU Boulder)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updated cloud water pH
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
−
|Viral Shah (Harvard)<br>Jonathan Moch (Harvard)
+
|Tia Scarpelli (Carbon Mapper)<br>Melissa Sulprizio (Harvard)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Methylethylketone chemistry
+
|New prior CO2 biospheric fluxes from CMS-FLUX and GMAO
−
|Jared Brewer (CSU)
+
|Kevin Bowman (JPL)<br>Lesley Ott (GMAO)
−
|Science
+
|Emissions
 
|
 
|
 +
*GMAO can provide high-resolution  fluxes (as high as 12 km)
  
 
|-valign="top"
 
|-valign="top"
−
|Add sulfate dependence to SOA yield from isoprene in simple SOA
+
|Snowpack Br2 emission
−
|Elo&iuml;se Marais (Leicester)
+
|Chris Holmes (FSU)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Trace metal simulation
+
|EDGAR v8.1_toxHg emissions for 1970-2022
−
|Junwei Xu (Dalhousie)
+
|Eric Roy (MIT)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Hg gas-phase photo-reduction
+
|Improve pressure handling in GCHP advection
−
|Colin Thackray (Harvard)
+
|Yuanjian Zhang (WashU)<br>Seb Eastham (ICL)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
+
|Add error trap for duplicate scale factors in HEMCO
−
|Amos Tai (CUHK)
+
|Bob Yantosca (Harvard)
−
|Science
+
|HEMCO
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Canopy Physics Model
+
|Integration testing: Add stretched grid
−
|Sam Silva (MIT)
+
|Lizzie Lundgren (Harvard)
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Integration testing: Add GCAP2
 +
|GCST
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Integration testing: Add GCHP mass flux run
 +
|Lizzie Lundgren (Harvard)
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Integration testing: Add run with all diagnostics turned on
 +
|GCST
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Integration testing: Reinstate TOMAS40
 +
|Betty Croft (Dalhousie/WashU)
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Strat-adjusted RF in GCC and GCHP
 +
|Connor Barker (UCL)<br>Eloise Marais (UCL)
 +
|Radiation
 +
|
 +
 
 +
|-valign="top"
 +
|Continue cleanup of C-preprocessor switches
 +
|Lizzie Lundgren (Harvard)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Landcover/Fire Emissions Offline LPJlmfire
+
|Updates to Luo deposition scheme
−
|Loretta Mickley (Harvard)
+
|Gan Luo (Albany)
−
|Science
+
|Wet Deposition
 +
|
 +
*New version, keep as switch (not default)
 +
 
 +
|-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 (Albany)<br>Fangqun Yu (Albany)
 +
|Wet Deposition
 
|
 
|
  
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+
== Over the horizon (6-12 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 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"|Notes
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Implement isotope simulation for CO and CH4 in GCHP
+
|ML algorithms for bulk aerosol
 +
|Arshad Nair (Albany)<br>Fangqun Yu (Albany)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Heterogeneous sulfate chemistry
 +
|Katie Travis (NASA)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|H2 as an active species
 +
|Seb Eastham (ICL)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|HCN, acetonitrile as fire tracers
 +
|Kevin Bates (CU Boulder)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Implement ethane in carbon simulation
 +
|Yuzhong Zhang (Westlake)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|VCPs emissions
 +
|Kelvin Bates (CU Boulder)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Mesospheric source of CO
 +
|Dylan Jones (UofT)<br>Pam Wales (NASA GSFC)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Drought-stress algorithm
 +
|Wei Li (Houston)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Physically-based resolution correction for BVOC emissions using MEGAN
 +
|May Fu (SUSTech)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Canadian forest fire prediction system (Canada government forecast model)
 +
|Robin Stevens (Montreal)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Furan emission factors (updates existing emissions)
 +
|Lu Hu (Montana)<br>Lixu Jin (Montana)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Cooking emissions (not biofuel)
 +
|Kelvin Bates (CU Boulder)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|State-specific annual emissions scaling factors (US) (1990-2021)
 +
|Ishir Dutta (MIT)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|GISS-GC online
 
|Lee Murray (Rochester)
 
|Lee Murray (Rochester)
−
|Science
+
|External model
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Migrate LETFK DA scheme to GCHP
+
|Hybrid MPI-OpenMP in GCHP
−
|Kazu Miyazaki (JPL)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)<br>Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Super fast chemistry scheme
+
|MAPL3: Update to MAPL3 in GCHP, including replacement of ExtData.rc and HISTORY.rc with YAML files
−
|Benjamin Brown-Steiner (AER)<br>Makoto Kelp (Harvard)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Add non-volatile cations to ISORROPIA
+
|MAPL3: Comply with MAPL "positive" standard in GCHP diagnostic files
−
|Becky Alexander (UW)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Update Europe emissions to EMEP 2016
+
|MAPL3: Wildcards in GCHP History
−
|Eloise Marais (Leicester)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|MEGAN3
+
|MAPL3: Output emissions with positive up convention in GCHP
−
|Sam Silva (MIT)<br>Jen Kaiser (GIT)<br>Yuxuan Wang (UH)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|DMS oxidation scheme updating
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
−
|Becky Alexander (UW)<br>Qianjie Chen (UW)
+
|Bob Yantosca (Harvard)
−
|Science
+
|Performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Streamlining of specialty simulations through HEMCO and KPP
+
|Photophysical oxidation of aldehydes
−
|GCST<br>Chris Holmes (FSU)<br>Colin Thackray for POPs (Harvard)<br>Peter Ivatt (York) for PAH
+
|Paulo Sebastianelli (Wollongong)<br>Jenny Fisher (Wollongong)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Hg in WRF-GC
+
|DMS updates
−
|Yanxu Zhang (Nanjing)
+
|Will Porter (UCR)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Hg with blowing snow
+
|Furans emission and chemistry
−
|Yanxu Xhang (Nanjing)
+
|Lixu Jin (Montana)<br>Lu Hu (Montana)
−
|Science
+
|Chemistry + <br>Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updated treatment of Hg in ocean
+
|Cl2 prodcution from Fe aerosol
−
|Chris Holmes (FSU)
+
|Qianjie Chen (HK Poly)<br>Becky Alexander (UW)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|GTMM updates
+
|VCP, cooking: tracers species added i.e., D5, ethanol affecting PAN
−
|Ben Geyman (Harvard)
+
|Kevin Bates (CU Boulder)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Complex / multicomplex variables
+
|bidirectional land-atmosphere exchange for Hg
−
|Shannon Capps (Drexel)
+
|Yuying Cui (MIT/Tsinghua)
−
|Structural
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Build KPP when you compile GC
+
|OH covariances for inversions
 +
|Elise Penn (Harvard)
 +
|Inversions
 +
|
 +
 
 +
|-valign="top"
 +
|CESM2-GC offline
 +
|Seb Eastham (ICL)<br>Lee Murray (Rochester)
 +
|Met fields
 +
|
 +
 
 +
|-valign="top"
 +
|Re-binning of off-line sea salt and dust for TOMAS
 +
|Betty Croft (Dalhousie)
 +
|Microphysics
 +
|
 +
 
 +
|-valign="top"
 +
|TOMAS nucleation updates
 +
|Sam O'Donnell (CSU)
 +
|Microphysics
 +
|
 +
 
 +
|-valign="top"
 +
|Stratospheric aerosol APM
 +
|Fangqun Yu (SUNY Albany)
 +
|Microphysics
 +
|
 +
 
 +
|-valign="top"
 +
|Transition from MERRA-2 to GEOS-IT for benchmarking
 +
|Yuanjian Zhang (WashU)
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Automate integration testing on AWS
 +
|Yidan Tang (WashU)
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Integration testing: Add across end of year run
 
|GCST
 
|GCST
 +
|Quality Assurance
 +
|
 +
 +
|-valign="top"
 +
|Integration testing: Add GEOS-IT
 +
|Yuanjian Zhang (WashU)
 +
|Quality Assurance
 +
|
 +
 +
|-valign="top"
 +
|Separate mixing, emissions, and drydep
 +
|Yuanjian Zhang (WashU)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Restructure source code folders
+
|Intel IFX compiler
−
|GCST
+
|Bob Yantosca (Harvard)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Archived CMIP6 Met Products for GEOS-Chem Input
+
|CMake option to only build libraries but not executable, also passing C-preprocessor statements to turn off code
−
|Lee Murray (Rochester)
+
|Bob Yantosca (Harvard)<br>Lee Murray (Rochester)
−
|Science
+
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Remove differences introduced when breaking up GC-Classic runs in time; and flexible precision in HEMCO
 +
|Lizzie Lundgren (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Limit allocation of State_Met to what is needed per simulation
 +
|Melissa Sulprizio (Harvard)
 +
|Structural
 
|
 
|
  
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+
== 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.
  
−
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
+
{| border=1 cellspacing=0 cellpadding=5
 +
|- bgcolor="#cccccc"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
 +
 
 +
|-valign="top"
 +
|Modal aerosol model (MAM7) in GCHP
 +
|Shreya Sharma (MIT)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Online OCIM ocean biogeochemistry
 +
|Lee Murray (Rochester)<br>Hannah Horowitz (UIUC)<br>Chris Holmes (FSU)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Perchlorate chemistry
 +
|Yuk Chun Chan (UW)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Non-stomatal dry deposition (2-layer canopy model)
 +
|Michael Vermeuel (Purdue)
 +
|Dry Deposition
 +
|
 +
 
 +
|-valign="top"
 +
|Continental chloride particle emissions (salty dust, road salt)
 +
|Jessica Haskins (Utah)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Multivolatility emission inventory to address gaps in EDGAR/HTAP etc.
 +
|Ruochong (Tshingua)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Lightning NOx production rates
 +
|Bex Horner (UCL)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|HFO and CF3CHO
 +
|Beth Killen (Wollongong)<br>Jenny Fisher (Wollongong)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Glyoxal updates from isoprene
 +
|Tzung-May Fu (SUSTech)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Iodine chemistry
 +
|Becky Alexander (UW)<br>Xuan Wang (CUHK)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Chlorine/Perchlorate
 +
|Yukchun Chan (UW)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Playa dust chemistry to improve Cl over land
 +
|Jessica Haskins (Utah)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|GFED5 biomass burning
 +
|Eric Roy (MIT)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Ocean Hg surface concentrations for 2010-2020 from multi-model ensemble
 +
|Eric Roy (MIT)<br>Ari Feinberg (IQF-CSIC)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Soil Hg emissions 2010-2020
 +
|Eric Roy (MIT)<br>Ari Feinberg (IQF-CSIC)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Air-sea exchange parameterization
 +
|Eric Roy (MIT)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Soil Hg emissions parameterization
 +
|Ari Feinberg (IQF-CSIC)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Sea salt uptake of GOM
 +
|Eric Roy (MIT)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Photoreduction rate constant
 +
|Eric Roy (MIT)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|new observations (2010-2020) in standardized Hg benchmark for intercomparison
 +
|Eric Roy (MIT)/Ari Feinberg (IQF-CSIC)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Hg simulation in GCHP
 +
|Eric Roy (MIT)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|OCIM - biogeochemical model - (C/P/N/Fe - no Hg yet) (MATLAB)
 +
|Hannah Horowitz (UIUC)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|possibly updating Hg oxidation chemistry based on Utah field campaigns
 +
|Jessica Haskins (Utah)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|New halogen/aerosol fields (surface area / AOD) from 10-year 14.4 benchmark simulation available online
 +
|Viral Shah (NASA GMAO); Eric Roy (MIT); Ari Feinberg (IQF-CSIC)
 +
|Input data
 +
|
 +
 
 +
|-valign="top"
 +
|Extend IMI to CO2 (ICI)
 +
|Hannah Nesser (JPL)
 +
|Inversions
 +
|
 +
 
 +
|-valign="top"
 +
|Global emission inventory of metals
 +
|Tzung-May Fu (SUSTech); He Zhong Tian (Peking Normal U)
 +
|Metals simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Investigate and improve performance of aerosol chemistry
 +
|Bob Yantosca (Harvard)
 +
|Performance
 +
|
 +
 
 +
|-valign="top"
 +
|PAH - update from version 11
 +
|Lexia Cicone (MIT)
 +
|POPs simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Species database more accessible; doc updates; TOL discussion
 +
|Jessica Haskins (Utah)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Stretched-grid plotting in GCPy
 +
|Killian Murphy (York)
 +
|Tools
 +
|
 +
 
 +
|-valign="top"
 +
|Model inter-comparison of transport (GEOS, GCHP, GCClassic)
 +
|Lizzie Lundgren (Harvard), Emma Knowland (NASA)
 +
|Transport
 +
|
 +
 
 +
|-valign="top"
 +
|Comparing mass fluxes in GCHP vs. traditional lat/lon wind
 +
|Yuanjian Zhang (WashU), Seb Eastham (ICL)
 +
|Transport
 +
|
 +
 
 +
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Latest revision as of 15:59, 28 June 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 14.5.0

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
ALK4 & R4N2 chemistry Jared Brewer (UMN) Chemistry Simple
New soil NOx parameterization Yi Wang (Iowa)
Jun Wang (Iowa) 		Emissions Medium
Fix pressure handling in HEMCO standalone Melissa Sulprizio (Harvard) HEMCO Simple
Fix obspack - not working in 14.4.0 Bob Yantosca (Harvard) Diagnostics Medium
Horizontal flux regridding fix in MAPL Tom Clune (GMAO) GCHP Medium
Cloud-J 7.7.2 for greater flexibility in external models Lizzie Lundgren (Harvard) Photolysis Medium
GCHP run directory improvements for mass flux, stretched grid, and GEOS-IT runs Lizzie Lundgren (Harvard) GCHP Medium
Fixes for GEOS-Chem 14.4 in CESM Haipeng Lin (Harvard)
Lizzie Lundgren (Harvard) 		CESM 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 June 2024
Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4 Lizzie Lundgren (Harvard) GC-Classic Medium

Ready to go in

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

Feature Contributor(s) Model scope Delivery status Notes and Refereneces


Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol Camilo Serrano (McGill)
Andreas Zuend (McGill) 		Aerosols Not delivered
Extend aerosol settling Eloise Marais (UCL) Aerosols Not delivered
Comment back in Ca, Mg, and K cations in aerosol thermo (HETP) Becky Alexander (UW) Aerosols Not delivered
Seasalt aerosol from sea ice leads (2002-2011) Hannah Horrowitz (UIUC) Aerosols Not delivered
  • Offline and online, ready to go in HEMCO (optional in addition to existing seasalt emissions)
P/L species should not contribute to the error norm Obin Sturm (USC) Chemistry Not delivered
Additional 6 peroxynitrates (many PANs like species); improve ALK4 & add ALK6 Katie Travis (NASA LARC) Chemistry Not delivered
Monoterpene oxidation more species & oxidation products Kevin Bates (CU Boulder) Chemistry Not delivered
PPN photolysis Eloise Marais (UCL) Chemistry Not delivered
Global organic N dep from various emissions; nitrate aromatics updates May Fu (SUSTech) Chemistry +
Deposition 		Not delivered
ALK4 from biogenic vs anthro Jared Brewer (UMN) Chemistry Not delivered
Dry deposition to F90 to improve readability Chris Holmes (FSU) Dry Deposition Not delivered
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam (CUHK)
Amos Tai (CUHK) 		Dry deposition Delivered
Feb 2021
FRP-based fire emissions for eastern US at 0.2 (2019-2020) Chris Holmes (FSU) Emissions Not delivered
China agriculture NH3 emissions Amos Tai (CUHK) Emissions Not delivered
T-dependent anthropogenic VOCs May Fu (SUSTech) Emissions Not delivered
  • Option. Requires processing existing anthropogenic VOC emissions to generate offline emissions to read in. Parameterised for China.
New source functions for transport tracers beryllium-7 and beryllium-10 Minjie Zheng (ETH) Emissions Delivered
June 2024
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100 Yang Li (Baylor U)
Loretta Mickley (Harvard) 		Emissions Delivered
  • Data involves many files- need to think about temporal frequency
Australian emissions Stephen MacFarlane (Wollongong)
Jenny Fisher (Wollongong) 		Emissions Not delivered
Hg geogenic emissions (volcanic, rock weathering) Eric Roy (MIT) Emissions Not delivered
Hg biomass burning - FINN2.5 & GFED4 Eric Roy (MIT) Emissions Not delivered
BCC-GC online Lin Zhang (PKU) External Model Not delivered
GC-YIBS with online fire emissions Xu Yue (NUIST)
Hong Liao (NUIST) 		External Model Not delivered
GISS-GC offline (GCAP) Lee Murray (Rochester) GCAP Not delivered
Archived TCR-2 OH fields for carbon simulations Kazu Miyazaki (JPL) Input data Not delivered
  • This will be the default OH, but users will have the option of selecting other OH fields

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


Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard) 		Diagnostics
Dust non-sphericity impacts on optical properties Inderjeet Singh (WashU) Aerosols
Fixes to stratospheric aerosol settling Connor Barker (UCL)
Eloise Marais (UCL) 		Aerosols
DMS chemistry in v14 Linia Tashmim (UCR)
Will Porter (UCR) 		Chemistry
KPP standalone + 3D Interface Obin Sturm (USC) Chemistry
Load balancing in chemistry solver (GCHP) Zhouran (Jordan) Sun (WashU) Chemistry +
Performance
UCX chemistry in mesosphere (GCHP/GCClassic) Helena McDonald (MIT) Chemistry
Updated aromatic oxidation Stephen MacFarlane (Wollongong)
Jenny Fisher (Wollongong) 		Chemistry
MCO3 uptake by cloud forming MP; leading to lower PAN Laura Yang (Harvard) Chemistry
Implement isotope simulation for CH4 in the carbon simulation Lee Murray (Rochester) Chemistry
  • Will have to change negative emissions from soil to a first-order loss process
Active mesospheric chemistry Helena McDonald (MIT)
Seb Eastham (ICL) 		Chemistry
Documentation for adding additional aerosol species Connor Barker (UCL) Documentation
Column diagnostics Lizzie Lundgren (Harvard)
Viral Shah (GMAO) 		Diagnostics
TOMAS rate diagnostics -- improve performance Betty Croft (WashU/Dal) Diagnostics +
Performance
Archive gamma values from heterogeneous chemistry Bob Yantosca (Harvard) Diagnostics
RRTMG Documentation GCST Documentation
Canopy Physics Model Sam Silva (MIT) Dry Deposition
Dry deposition diagnostics by land cover Holly Nowell (FSU)
Chris Holmes (FSU) 		Dry Deposition
Dry deposition process diagnostics Holly Nowell (FSU)
Chris Holmes (FSU) 		Dry Deposition
Biomass burning for TOMAS Nicole June (CSU) Emissions +
Microphysics
Historic biomass burning (1750-2010) Pengfei (Gtech) Emissions
Rice methane emissions Zichong Cheng (Harvard) Emissions+
Carbon simulation
Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.) Katie Travis (NASA)
Kelvin Bates (CU Boulder) 		Emissions
Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3) Tia Scarpelli (Carbon Mapper)
Melissa Sulprizio (Harvard) 		Emissions
New prior CO2 biospheric fluxes from CMS-FLUX and GMAO Kevin Bowman (JPL)
Lesley Ott (GMAO) 		Emissions
  • GMAO can provide high-resolution fluxes (as high as 12 km)
Snowpack Br2 emission Chris Holmes (FSU) Emissions
EDGAR v8.1_toxHg emissions for 1970-2022 Eric Roy (MIT) Emissions
Improve pressure handling in GCHP advection Yuanjian Zhang (WashU)
Seb Eastham (ICL) 		GCHP
Add error trap for duplicate scale factors in HEMCO Bob Yantosca (Harvard) HEMCO
Integration testing: Add stretched grid Lizzie Lundgren (Harvard) Quality Assurance
Integration testing: Add GCAP2 GCST Quality Assurance
Integration testing: Add GCHP mass flux run Lizzie Lundgren (Harvard) Quality Assurance
Integration testing: Add run with all diagnostics turned on GCST Quality Assurance
Integration testing: Reinstate TOMAS40 Betty Croft (Dalhousie/WashU) Quality Assurance
Strat-adjusted RF in GCC and GCHP Connor Barker (UCL)
Eloise Marais (UCL) 		Radiation
Continue cleanup of C-preprocessor switches Lizzie Lundgren (Harvard) Structural
Updates to Luo deposition scheme Gan Luo (Albany) Wet Deposition
  • New version, keep as switch (not default)
Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer Gan Luo (Albany)
Fangqun Yu (Albany) 		Wet Deposition

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
ML algorithms for bulk aerosol Arshad Nair (Albany)
Fangqun Yu (Albany) 		Aerosols
Heterogeneous sulfate chemistry Katie Travis (NASA) Chemistry
H2 as an active species Seb Eastham (ICL) Chemistry
HCN, acetonitrile as fire tracers Kevin Bates (CU Boulder) Chemistry
Implement ethane in carbon simulation Yuzhong Zhang (Westlake) Chemistry
VCPs emissions Kelvin Bates (CU Boulder) Emissions
Mesospheric source of CO Dylan Jones (UofT)
Pam Wales (NASA GSFC) 		Emissions
Drought-stress algorithm Wei Li (Houston) Emissions
Physically-based resolution correction for BVOC emissions using MEGAN May Fu (SUSTech) Emissions
Canadian forest fire prediction system (Canada government forecast model) Robin Stevens (Montreal) Emissions
Furan emission factors (updates existing emissions) Lu Hu (Montana)
Lixu Jin (Montana) 		Emissions
Cooking emissions (not biofuel) Kelvin Bates (CU Boulder) Emissions
State-specific annual emissions scaling factors (US) (1990-2021) Ishir Dutta (MIT) Emissions
GISS-GC online Lee Murray (Rochester) External model
Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT)
Killian Murphy (York)
Lizzie Lundgren (Harvard) 		GCHP
MAPL3: Update to MAPL3 in GCHP, including replacement of ExtData.rc and HISTORY.rc with YAML files Lizzie Lundgren (Harvard) GCHP
MAPL3: Comply with MAPL "positive" standard in GCHP diagnostic files Lizzie Lundgren (Harvard) GCHP
MAPL3: Wildcards in GCHP History Lizzie Lundgren (Harvard) GCHP
MAPL3: Output emissions with positive up convention in GCHP Lizzie Lundgren (Harvard) GCHP
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone Bob Yantosca (Harvard) Performance
Photophysical oxidation of aldehydes Paulo Sebastianelli (Wollongong)
Jenny Fisher (Wollongong) 		Chemistry
DMS updates Will Porter (UCR) Chemistry
Furans emission and chemistry Lixu Jin (Montana)
Lu Hu (Montana) 		Chemistry +
Emissions
Cl2 prodcution from Fe aerosol Qianjie Chen (HK Poly)
Becky Alexander (UW) 		Chemistry
VCP, cooking: tracers species added i.e., D5, ethanol affecting PAN Kevin Bates (CU Boulder) Emissions
bidirectional land-atmosphere exchange for Hg Yuying Cui (MIT/Tsinghua) Hg simulation
OH covariances for inversions Elise Penn (Harvard) Inversions
CESM2-GC offline Seb Eastham (ICL)
Lee Murray (Rochester) 		Met fields
Re-binning of off-line sea salt and dust for TOMAS Betty Croft (Dalhousie) Microphysics
TOMAS nucleation updates Sam O'Donnell (CSU) Microphysics
Stratospheric aerosol APM Fangqun Yu (SUNY Albany) Microphysics
Transition from MERRA-2 to GEOS-IT for benchmarking Yuanjian Zhang (WashU) Quality Assurance
Automate integration testing on AWS Yidan Tang (WashU) Quality Assurance
Integration testing: Add across end of year run GCST Quality Assurance
Integration testing: Add GEOS-IT Yuanjian Zhang (WashU) Quality Assurance
Separate mixing, emissions, and drydep Yuanjian Zhang (WashU) Structural
Intel IFX compiler Bob Yantosca (Harvard) Structural
CMake option to only build libraries but not executable, also passing C-preprocessor statements to turn off code Bob Yantosca (Harvard)
Lee Murray (Rochester) 		Structural
Remove differences introduced when breaking up GC-Classic runs in time; and flexible precision in HEMCO Lizzie Lundgren (Harvard) Structural
Limit allocation of State_Met to what is needed per simulation Melissa Sulprizio (Harvard) Structural

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
Modal aerosol model (MAM7) in GCHP Shreya Sharma (MIT) Aerosols
Online OCIM ocean biogeochemistry Lee Murray (Rochester)
Hannah Horowitz (UIUC)
Chris Holmes (FSU) 		Chemistry
Perchlorate chemistry Yuk Chun Chan (UW) Chemistry
Non-stomatal dry deposition (2-layer canopy model) Michael Vermeuel (Purdue) Dry Deposition
Continental chloride particle emissions (salty dust, road salt) Jessica Haskins (Utah) Emissions
Multivolatility emission inventory to address gaps in EDGAR/HTAP etc. Ruochong (Tshingua) Emissions
Lightning NOx production rates Bex Horner (UCL) Emissions
HFO and CF3CHO Beth Killen (Wollongong)
Jenny Fisher (Wollongong) 		Chemistry
Glyoxal updates from isoprene Tzung-May Fu (SUSTech) Chemistry
Iodine chemistry Becky Alexander (UW)
Xuan Wang (CUHK) 		Chemistry
Chlorine/Perchlorate Yukchun Chan (UW) Chemistry
Playa dust chemistry to improve Cl over land Jessica Haskins (Utah) Chemistry
GFED5 biomass burning Eric Roy (MIT) Emissions
Ocean Hg surface concentrations for 2010-2020 from multi-model ensemble Eric Roy (MIT)
Ari Feinberg (IQF-CSIC) 		Hg simulation
Soil Hg emissions 2010-2020 Eric Roy (MIT)
Ari Feinberg (IQF-CSIC) 		Hg simulation
Air-sea exchange parameterization Eric Roy (MIT) Hg simulation
Soil Hg emissions parameterization Ari Feinberg (IQF-CSIC) Hg simulation
Sea salt uptake of GOM Eric Roy (MIT) Hg simulation
Photoreduction rate constant Eric Roy (MIT) Hg simulation
new observations (2010-2020) in standardized Hg benchmark for intercomparison Eric Roy (MIT)/Ari Feinberg (IQF-CSIC) Hg simulation
Hg simulation in GCHP Eric Roy (MIT) Hg simulation
OCIM - biogeochemical model - (C/P/N/Fe - no Hg yet) (MATLAB) Hannah Horowitz (UIUC) Hg simulation
possibly updating Hg oxidation chemistry based on Utah field campaigns Jessica Haskins (Utah) Hg simulation
New halogen/aerosol fields (surface area / AOD) from 10-year 14.4 benchmark simulation available online Viral Shah (NASA GMAO); Eric Roy (MIT); Ari Feinberg (IQF-CSIC) Input data
Extend IMI to CO2 (ICI) Hannah Nesser (JPL) Inversions
Global emission inventory of metals Tzung-May Fu (SUSTech); He Zhong Tian (Peking Normal U) Metals simulation
Investigate and improve performance of aerosol chemistry Bob Yantosca (Harvard) Performance
PAH - update from version 11 Lexia Cicone (MIT) POPs simulation
Species database more accessible; doc updates; TOL discussion Jessica Haskins (Utah) Structural
Stretched-grid plotting in GCPy Killian Murphy (York) Tools
Model inter-comparison of transport (GEOS, GCHP, GCClassic) Lizzie Lundgren (Harvard), Emma Knowland (NASA) Transport
Comparing mass fluxes in GCHP vs. traditional lat/lon wind Yuanjian Zhang (WashU), Seb Eastham (ICL) Transport
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