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]]'''''
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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 [http://acmg.seas.harvard.edu/geos/geos_working_groups.html Working Groups] and the [http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html Steering Committee]. For history of past releases see the [[GEOS-Chem_versions|GEOS-Chem Versions wiki page]].
+
−
 
+
−
== Release schedule ==
+
−
 
+
−
Please see the [http://wiki.seas.harvard.edu/geos-chem/images/e/e1/GEOS-Chem_Release_Proposal.pdf GEOS-Chem Release Proposal] outlining the procedure and schedule for releasing GEOS-Chem versions.  
+
  
 
== Merged and awaiting release ==
 
== Merged and awaiting release ==
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{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
−
!width="200px"|Patch version in development
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!width="300px"|Mergeable at any time
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!width="200px"|Minor version in development
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!width="200px"|Version in development
  
 
|-valign="top"
 
|-valign="top"
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|align="center"|TBD
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|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
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|align="center"|'''[[GEOS-Chem 13.3.0]]'''
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|align="center"|'''[[GEOS-Chem 14.5.0]]'''
  
 
|}
 
|}
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== Feature integration in progress ==
 
== Feature integration in progress ==
  
−
Features listed in this table are actively being integrated into GEOS-Chem by the [[GEOS-Chem Support Team]].  
+
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  
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!width="100px"|Model scope
 
!width="100px"|Model scope
 
!width="100px"|Ease of implementation
 
!width="100px"|Ease of implementation
−
!width="300px"|Notes
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!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/547 Update US emissions to NEI2016] (as option)
+
|ALK4 & R4N2 chemistry
−
|Barron Henderson (EPA)<br>Lyssa Freese (MIT)
+
|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"
 +
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
 +
|Yi Wang (Iowa)<br>Jun Wang (Iowa)
 
|Emissions
 
|Emissions
−
|Easy
+
|Medium
 
|
 
|
−
*Files available at [ftp://newftp.epa.gov/Air/aqmg/global/NEI2016fh/ this ftp site]. Barron writes, "They have not yet been used in a publication, so I caution users to look for anything and report back."
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/pull/459 Updates to enable automated run directory creation]
+
|Fix pressure handling in HEMCO standalone
−
|Liam Bindle (GCST)<br>Melissa Sulprizio (GCST)
+
|Melissa Sulprizio (Harvard)
−
|Run directory
+
|HEMCO
 +
|Simple
 +
|
 +
*[https://github.com/geoschem/HEMCO/issues/277 HEMCO issue #277]
 +
 
 +
|-valign="top"
 +
|Fix obspack - not working in 14.4.0
 +
|Bob Yantosca (Harvard)
 +
|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
 
|Medium
 
|
 
|
 +
*[https://github.com/geoschem/MAPL/pull/36 MAPL PR #36]
  
 
|-valign="top"
 
|-valign="top"
−
|Upgrade Fast-J to Cloud-J
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|Cloud-J 7.7.2 for greater flexibility in external models
−
|Lizzie Lundgren (GCST)
+
|Lizzie Lundgren (Harvard)
−
|Structural
+
|Photolysis
−
|Difficult
+
|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]
 +
* More Cloud-J PRs in progress
  
 
|-valign="top"
 
|-valign="top"
−
|Migrating sulfate chemistry into KPP
+
|GCHP run directory improvements for mass flux, stretched grid, and GEOS-IT runs
−
|Mike Long (GCST)
+
|Lizzie Lundgren (Harvard)
−
|Chemistry &<br>Structural
+
|GCHP
−
|Difficult
+
|Medium
 +
|
 +
*[https://github.com/geoschem/geos-chem/pull/2326 geos-chem PR #2326]
 +
 
 +
|-valign="top"
 +
|Fixes for GEOS-Chem 14.4 in CESM
 +
|Haipeng Lin (Harvard)<br>Lizzie Lundgren (Harvard)
 +
|CESM
 +
|Medium
 +
|
 +
*[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"
 +
|New version of CEDS at 0.1 deg
 +
|Dandan Zhang (WashU)
 +
|Emissions
 +
|Simple
 +
|Delivered June 2024
 +
|
 +
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
 +
 
 +
|-valign="top"
 +
|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
 +
|Lizzie Lundgren (Harvard)
 +
|GC-Classic
 +
|Medium
 +
|
 +
|
 +
*[https://github.com/geoschem/HEMCO/issues/18 HEMCO issue #18]
 +
 
 +
|}
 +
 
 +
== 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
 +
 
 +
 
 +
|-valign="top"
 +
|Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol
 +
|Camilo Serrano (McGill)<br>Andreas Zuend (McGill)
 +
|Aerosols
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|Extend aerosol settling
 +
|Eloise Marais (UCL)
 +
|Aerosols
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|Comment back in Ca, Mg, and K cations in aerosol thermo (HETP)
 +
|Becky Alexander (UW)
 +
|Aerosols
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|Seasalt aerosol from sea ice leads (2002-2011)
 +
|Hannah Horrowitz (UIUC)
 +
|Aerosols
 +
|Not delivered
 
|
 
|
−
* Also includes Moch et al HMS chemistry
+
*Offline and online, ready to go in HEMCO (optional in addition to existing seasalt emissions)
−
* Also includes C2H4 and C2H2 chemistry
+
  
 
|-valign="top"
 
|-valign="top"
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|[http://acmg.seas.harvard.edu/publications/2020/moch_2020_hms_global.pdf HMS chemistry]
+
|P/L species should not contribute to the error norm
−
|Jonathan Moch (Harvard)<br>Mike Long (GCST)
+
|Obin Sturm (USC)
 
|Chemistry
 
|Chemistry
−
|Easy
+
|Not delivered
 
|
 
|
−
*See [https://github.com/geoschem/geos-chem/pull/456 geoschem/geos-chem PR #456]
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/560 C2H4 and C2H2 chemistry]
+
|Additional 6 peroxynitrates (many PANs like species); improve ALK4 & add ALK6
−
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)<br>Mike Long (GCST)
+
|Katie Travis (NASA LARC)
 
|Chemistry
 
|Chemistry
−
|Easy
+
|Not delivered
 
|
 
|
−
*Includes adding C2H4 and C2H2 as advected species with emissions
 
−
*See [https://github.com/geoschem/geos-chem/pull/813 geoschem/geos-chem PR #813]
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2020JD033439 CH3O2 + OH reaction]
+
|Monoterpene oxidation more species & oxidation products
−
|Kelvin Bates (Harvard)
+
|Kevin Bates (CU Boulder)
 
|Chemistry
 
|Chemistry
−
|Easy
+
|Not delivered
 
|
 
|
−
*Reaction stoichiometry and rate constant in KPP
 
−
*See [https://github.com/geoschem/geos-chem/pull/814 geoschem/geos-chem PR #814]
 
  
 
|-valign="top"
 
|-valign="top"
−
|Cleaning up heterogeneous chemistry reaction rate computations
+
|PPN photolysis
−
|Bob Yantosca (GCST)
+
|Eloise Marais (UCL)
−
|Chemistry &<br>Structural
+
|Chemistry
−
|Difficult
+
|Not delivered
 
|
 
|
−
*See [https://github.com/geoschem/geos-chem/pull/817 geoschem/geos-chem PR #817]
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/HEMCO/issues/92 Avoid double counting of acetone source from monoterpenes when using online MEGAN]
+
|Hlobal organic N dep from various emissions; nitrate aromatics updates
−
|Dylan Millet (UMN)
+
|May Fu (SUSTech)
−
|Emissions
+
|Chemistry +<br>Deposition
−
|Easy
+
|Not delivered
 
|
 
|
−
*See [https://github.com/geoschem/HEMCO/pull/93 geoschem/HEMCO PR #93]
 
  
 
|-valign="top"
 
|-valign="top"
−
|[http://acmg.seas.harvard.edu/publications/2021/shah_est_2021.pdf Updated Hg chemistry in KPP]
+
|ALK4 from biogenic vs anthro
−
|Viral Shah (Harvard)<br>Colin Thackray (Harvard)<br>Mike Long (Harvard)
+
|Jared Brewer (UMN)
 
|Chemistry
 
|Chemistry
−
|Medium
+
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[https://acp.copernicus.org/preprints/acp-2021-605/ Aromatic VOC chemistry]
+
|Dry deposition to F90 to improve readability
−
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)<br>Mike Long (Harvard)
+
|Chris Holmes (FSU)
−
|Chemistry
+
|Dry Deposition
−
|Medium
+
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[https://gmd.copernicus.org/articles/14/4249/2021/gmd-14-4249-2021.html Updated offline dust emissions from Meng et al. (2021)]
+
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
−
|Jun Meng (WUStL)<br>Yanshun Li (WUStL)
+
|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)
 
|Emissions
 
|Emissions
−
|Easy
+
|Not delivered
 
|
 
|
−
*See [https://github.com/geoschem/geos-chem/pull/816 geoschem/geos-chem PR #816]
 
  
 
|-valign="top"
 
|-valign="top"
−
|GEOS updates
+
|China agriculture NH3 emissions
−
|Christoph Keller (GMAO)<br>Lizzie Lundgren (GCST)
+
|Amos Tai (CUHK)
−
|GEOS
+
|Emissions
−
|Medium (ongoing)
+
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|CESM-GC updates
+
|T-dependent anthropogenic VOCs
−
|Thibaud Fritz (MIT)<br>Lizzie Lundgren (GCST)
+
|May Fu (SUSTech)
−
|CESM
+
|Emissions
−
|Medium (ongoing)
+
|Not delivered
 
|
 
|
 +
*Option. Requires processing existing anthropogenic VOC emissions to generate offline emissions to read in. Parameterised for China.
  
 
|-valign="top"
 
|-valign="top"
−
|GMAO library version updates
+
|New source functions for transport tracers beryllium-7 and beryllium-10
−
|Tom Clune (GMAO)<br>Ben Auer (GMAO)<br>Atanas Trayanov<br>GCST
+
|Minjie Zheng (ETH)
−
|GCHP
+
|Emissions
−
|Medium (ongoing)
+
|Not delivered
 
|
 
|
 +
*https://zenodo.org/records/8372652
  
 
|-valign="top"
 
|-valign="top"
−
|GCHP Adjoint updates
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
−
|Colin Lee (Wash U.)
+
|Yang Li (Baylor U)<br>Loretta Mickley (Harvard)
−
|GCHP Adjoint
+
|Emissions
−
|Medium (ongoing)
+
|Delivered
 
|
 
|
−
*See [https://github.com/geoschem/MAPL/pull/12 geoschem/MAPL PR #12]
+
*Data involves many files- need to think about temporal frequency
  
−
|}
+
|-valign="top"
 +
|Australian emissions
 +
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
 +
|Emissions
 +
|Not delivered
 +
|
  
−
== Ongoing feature integration ==
+
|-valign="top"
 +
|Hg geogenic emissions (volcanic, rock weathering)
 +
|Eric Roy (MIT)
 +
|Emissions
 +
|Not delivered
 +
|
  
−
Features listed in this table are in progress and work is ongoing. Updates are continuously added to the standard model as they are available.
+
|-valign="top"
 +
|Hg biomass burning - FINN2.5 & GFED4
 +
|Eric Roy (MIT)
 +
|Emissions
 +
|Not delivered
 +
|
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|-bgcolor="#CCCCCC"
+
|BCC-GC online
−
!width="200px"|Feature
+
|Lin Zhang (PKU)
−
!width="200px"|Contributor(s)
+
|External Model
−
!width="100px"|Model scope
+
|Not delivered
−
!width="100px"|Ease of implementation
+
|
−
!width="300px"|Notes
+
  
 
|-valign="top"
 
|-valign="top"
−
|GCHP Adjoint
+
|GC-YIBS with online fire emissions
−
|Colin Lee (CU Boulder)<br>Daven Henze (CU Boulder)
+
|Xu Yue (NUIST)<br>Hong Liao (NUIST)
−
|Structural
+
|External Model
 +
|Not delivered
 
|
 
|
 +
 +
|-valign="top"
 +
|GISS-GC offline (GCAP)
 +
|Lee Murray (Rochester)
 +
|GCAP
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|CESM-GC
+
|Archived TCR-2 OH fields for carbon simulations
−
|Sebastian Eastham (MIT)<br>Thibauld Fritz (MIT)<br>Haipeng Lin (Harvard)<br>Lizzie Lundgren (Harvard)
+
|Kazu Miyazaki (JPL)
−
|Structural
+
|Input data
−
|
+
|Not delivered
 
|
 
|
 +
*This will be the default OH, but users will have the option of selecting other OH fields
  
 
|}
 
|}
  
−
== Feature integration in the queue ==
+
== Almost there (< 6 months) ==
  
−
Features listed in this table have been delivered to the GEOS-Chem Support Team and are prioritized to be integrated into GEOS-Chem in the near future.
+
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="200px"|Feature
 
!width="200px"|Feature
 
!width="200px"|Contributor(s)
 
!width="200px"|Contributor(s)
 
!width="100px"|Model scope
 
!width="100px"|Model scope
−
!width="100px"|Ease of implementation
+
!width="420px"|Notes and References
−
!width="300px"|Notes
+
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://acp.copernicus.org/articles/21/1861/2021/ Updated Rn-222 emissions]
+
|Capture all trop and PBL height changes in budget diagnostics
−
|Bo Zhang
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
−
|Emissions
+
|Diagnostics
−
|Easy
+
 
|
 
|
−
*Existing Rn emissions will remain as an option
+
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
−
*Original data at https://doi.org/10.5281/zenodo.3942287
+
−
*Waiting for data submission in NetCDF format
+
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/331 Climatologies for lightning NOx]
+
|Dust non-sphericity impacts on optical properties
−
|Lee Murray (Rochester)
+
|Inderjeet Singh (WashU)
−
|Emissions
+
|Aerosols
−
|Easy
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[https://www.pnas.org/content/117/42/26076 Updated aerosol dry deposition]
+
|Fixes to stratospheric aerosol settling
−
|Jeff Pierce (CSU)
+
|Connor Barker (UCL)<br>Eloise Marais (UCL)
−
|Dry deposition
+
|Aerosols
−
|Easy
+
 
|
 
|
−
*See [https://github.com/geoschem/geos-chem/issues/604 geoschem/geos-chem #604]
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://doi.org/10.5194/acp-2021-441 Updates to IONO2 hydrolysis from Wang et al. (2021)]
+
|DMS chemistry in v14
−
|Tomas Sherwen (York)
+
|Linia Tashmim (UCR)<br>Will Porter (UCR)
 
|Chemistry
 
|Chemistry
−
|Medium
 
 
|
 
|
−
*See [https://github.com/geoschem/geos-chem/pull/719 geoschem/geos-chem PR #719]
 
−
*Needs to be merged with Bob Yantosca's gckpp_HetRates.F90 updates slated for 13.3.0
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation]
+
|KPP standalone + 3D Interface
−
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)
+
|Obin Sturm (USC)
−
|Specialty simulation
+
|Chemistry
−
|Medium
+
 
|
 
|
−
*See [https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
 
−
*Ideally implemented as a chemical mechanism in KPP
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option)
+
|Load balancing in chemistry solver (GCHP)
−
|Lu Shen (Harvard)
+
|Zhouran (Jordan) Sun (WashU)
 +
|Chemistry +<br>Performance
 +
|
 +
 
 +
|-valign="top"
 +
|UCX chemistry in mesosphere (GCHP/GCClassic)
 +
|Helena McDonald (MIT)
 
|Chemistry
 
|Chemistry
−
|Difficult
 
 
|
 
|
−
*Needs to be merged with Bob Yantosca's gckpp_HetRates.F90 updates slated for 13.3.0
 
  
−
|}
+
|-valign="top"
 +
|Updated aromatic oxidation
 +
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
 +
|Chemistry
 +
|
  
−
== Feature integration not yet prioritized ==
+
|-valign="top"
 +
|MCO3 uptake by cloud forming MP; leading to lower PAN
 +
|Laura Yang (Harvard)
 +
|Chemistry
 +
|
  
−
Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integrating into the model.
+
|-valign="top"
−
 
+
|Implement isotope simulation for CH4 in the carbon simulation
−
{| border=1 cellspacing=0 cellpadding=5
+
|Lee Murray (Rochester)
−
|-bgcolor="#CCCCCC"
+
|Chemistry
−
!width="200px"|Feature
+
|
−
!width="200px"|Contributor(s)
+
*Will have to change negative emissions from soil to a first-order loss process
−
!width="100px"|Model scope
+
−
!width="100px"|Ease of implementation
+
−
!width="300px"|Notes
+
  
 
|-valign="top"
 
|-valign="top"
−
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
+
|Active mesospheric chemistry
−
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
+
|Helena McDonald (MIT)<br>Seb Eastham (ICL)
 
|Chemistry
 
|Chemistry
−
|Medium
 
 
|
 
|
−
*Delivered to GCST (Jun 2020)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://gmd.copernicus.org/articles/13/2569/2020/ MEGAN3]
+
|Documentation for adding additional aerosol species
 +
|Connor Barker (UCL)
 +
|Documentation
 +
|
 +
 
 +
|-valign="top"
 +
|Column diagnostics
 +
|Lizzie Lundgren (Harvard)<br>Viral Shah (GMAO)
 +
|Diagnostics
 +
|
 +
 
 +
|-valign="top"
 +
|TOMAS rate diagnostics -- improve performance
 +
|Betty Croft (WashU/Dal)
 +
|Diagnostics +<br>Performance
 +
|
 +
 
 +
|-valign="top"
 +
|Archive gamma values from heterogeneous chemistry
 +
|Bob Yantosca (Harvard)
 +
|Diagnostics
 +
|
 +
 
 +
|-valign="top"
 +
|RRTMG Documentation
 +
|GCST
 +
|Documentation
 +
|
 +
 
 +
|-valign="top"
 +
|Canopy Physics Model
 
|Sam Silva (MIT)
 
|Sam Silva (MIT)
 +
|Dry Deposition
 +
|
 +
 +
|-valign="top"
 +
|Dry deposition diagnostics by land cover
 +
|Holly Nowell (FSU)<br>Chris Holmes (FSU)
 +
|Dry Deposition
 +
|
 +
 +
|-valign="top"
 +
|Dry deposition process diagnostics
 +
|Holly Nowell (FSU)<br>Chris Holmes (FSU)
 +
|Dry Deposition
 +
|
 +
 +
|-valign="top"
 +
|Biomass burning for TOMAS
 +
|Nicole June (CSU)
 +
|Emissions +<br>Microphysics
 +
|
 +
 +
|-valign="top"
 +
|Historic biomass burning (1750-2010)
 +
|Pengfei (Gtech)
 
|Emissions
 
|Emissions
−
|Medium
 
 
|
 
|
−
*Implementation details may be found at https://zenodo.org/record/3614062#.XzvrH5NKjOR
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://acp.copernicus.org/articles/17/3699/2017/ GC-YIBs biosphere-atmospheric chemistry coupled model]
+
|Rice methane emissions
−
|Xu Yue (NUIST)
+
|Zichong Cheng (Harvard)
−
|Science
+
|Emissions+<br>Carbon simulation
−
|Easy
+
 
|
 
|
−
*See [https://github.com/geoschem/geos-chem/issues/425 geoschem/geos-chem #425]
 
  
 
|-valign="top"
 
|-valign="top"
−
|[http://acmg.seas.harvard.edu/presentations/IGC9/posters/Tue_Posters_lam_joey.pdf Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
+
|Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.)
−
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
+
|Katie Travis (NASA)<br>Kelvin Bates (CU Boulder)
−
|Science
+
|Emissions
−
|Easy
+
 
|
 
|
−
*Delivered to GCST (Feb 2021)
 
−
*See [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
−
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
+
|Tia Scarpelli (Carbon Mapper)<br>Melissa Sulprizio (Harvard)
−
|Chemistry
+
|Emissions
−
|Easy
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Archived CMIP6 Met Products for GEOS-Chem Input
+
|New prior CO2 biospheric fluxes from CMS-FLUX and GMAO
−
|Lee Murray (Rochester)
+
|Kevin Bowman (JPL)<br>Lesley Ott (GMAO)
−
|Input data
+
|Emissions
−
|Easy
+
 
|
 
|
−
*See updates from [http://acmg.seas.harvard.edu/geos/word_pdf_docs/steering_cmte/gc_sc_minutes_24Feb2021.pdf Feb 2021 GCSC meeting]
+
*GMAO can provide high-resolution  fluxes (as high as 12 km)
−
*Official announcement coming soon
+
  
 
|-valign="top"
 
|-valign="top"
−
|Landcover/Fire Emissions Offline LPJlmfire
+
|Snowpack Br2 emission
−
|Loretta Mickley (Harvard)<br>Yang Li (Harvard)
+
|Chris Holmes (FSU)
 
|Emissions
 
|Emissions
−
|Easy
 
 
|
 
|
−
*Data files delivered to GCST (July 2021)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
+
|EDGAR v8.1_toxHg emissions for 1970-2022
−
|Sam Silva (MIT)
+
|Eric Roy (MIT)
−
|Science
+
|Emissions
−
|Medium
+
|
 +
 
 +
|-valign="top"
 +
|Improve pressure handling in GCHP advection
 +
|Yuanjian Zhang (WashU)<br>Seb Eastham (ICL)
 +
|GCHP
 +
|
 +
 
 +
|-valign="top"
 +
|Add error trap for duplicate scale factors in HEMCO
 +
|Bob Yantosca (Harvard)
 +
|HEMCO
 +
|
 +
 
 +
|-valign="top"
 +
|Integration testing: Add stretched grid
 +
|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
 +
|
 +
 
 +
|-valign="top"
 +
|Updates to Luo deposition scheme
 +
|Gan Luo (Albany)
 +
|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
 
|
 
|
−
*Code is available at https://zenodo.org/record/3614062
 
  
 
|}
 
|}
  
−
== Almost there (< 6 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 within the next 6 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
Line 341: Line 576:
 
!width="200px"|Contributor(s)
 
!width="200px"|Contributor(s)
 
!width="100px"|Model scope
 
!width="100px"|Model scope
−
!width="420px"|Notes
+
!width="420px"|Notes and References
  
 +
|-valign="top"
 +
|ML algorithms for bulk aerosol
 +
|Arshad Nair (Albany)<br>Fangqun Yu (Albany)
 +
|Aerosols
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/559 Implement H2 chemistry in UCX]
+
|Heterogeneous sulfate chemistry
−
|Chris Holmes (FSU)
+
|Katie Travis (NASA)
 
|Chemistry
 
|Chemistry
 
|
 
|
−
*Identified as a priority for GC 13, but not yet delivered
 
  
 +
|-valign="top"
 +
|H2 as an active species
 +
|Seb Eastham (ICL)
 +
|Chemistry
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|[https://iopscience.iop.org/article/10.1088/1748-9326/ac16a3 New soil NOx parameterization]
+
|HCN, acetonitrile as fire tracers
−
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
+
|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
 
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Grid-independent_emissions|Updated offline biogenic emissions]]
+
|Mesospheric source of CO
−
|Hongjian Weng (PKU)
+
|Dylan Jones (UofT)<br>Pam Wales (NASA GSFC)
 
|Emissions
 
|Emissions
 
|
 
|
−
*Identified as a priority for GC 13, but not yet delivered
 
−
*Waiting on updated MODIS LAI data
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Grid-independent_emissions|Updated offline sea salt emissions]]
+
|Drought-stress algorithm
−
|Hongjian Weng (PKU)
+
|Wei Li (Houston)
 
|Emissions
 
|Emissions
 
|
 
|
−
*Identified as a priority for GC 13, but not yet delivered
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Grid-independent_emissions|Updated offline soil NOx emissions]]
+
|Physically-based resolution correction for BVOC emissions using MEGAN
−
|Hongjian Weng (PKU)
+
|May Fu (SUSTech)
 
|Emissions
 
|Emissions
 
|
 
|
−
*Identified as a priority for GC 13, but not yet delivered
 
  
 
|-valign="top"
 
|-valign="top"
−
|Provide recommended rather than hard-coded scaling factors for online emissions
+
|Canadian forest fire prediction system (Canada government forecast model)
−
|GCST
+
|Robin Stevens (Montreal)
 
|Emissions
 
|Emissions
 
|
 
|
−
*Identified as a priority for GC 13, but not yet developed
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for volcano emissions]
+
|Furan emission factors (updates existing emissions)
−
|GCST
+
|Lu Hu (Montana)<br>Lixu Jin (Montana)
 
|Emissions
 
|Emissions
 
|
 
|
−
*Identified as a priority for GC 13, but not yet developed
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
+
|Cooking emissions (not biofuel)
−
|GCST
+
|Kelvin Bates (CU Boulder)
 
|Emissions
 
|Emissions
 
|
 
|
−
*Identified as a priority for GC 13, but not yet developed
 
  
 
|-valign="top"
 
|-valign="top"
−
|Diagnostic to archive XCO2, XCO, and XCH4
+
|State-specific annual emissions scaling factors (US) (1990-2021)
−
|Dylan Jones (Toronto)
+
|Ishir Dutta (MIT)
−
|Diagnostic
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
+
|GISS-GC online
−
|Kazu Miyazaki (JPL)
+
|Lee Murray (Rochester)
−
|Input data
+
|External model
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|BrC aging
+
|Hybrid MPI-OpenMP in GCHP
−
|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)<br>Lizzie Lundgren (Harvard)
−
|Chemistry
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Shared Socioeconomic Pathways Emission Inventories
+
|MAPL3: Update to MAPL3 in GCHP, including replacement of ExtData.rc and HISTORY.rc with YAML files
−
|Hong Liao (NUIST)
+
|Lizzie Lundgren (Harvard)
−
|Emissions
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Rediagnosis of RAS convection in GEOS-Chem
+
|MAPL3: Comply with MAPL "positive" standard in GCHP diagnostic files
−
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
+
|Lizzie Lundgren (Harvard)
−
|Convection
+
|GCHP
 
|
 
|
−
*Work is finished and a manuscript is in preparation.
 
  
 
|-valign="top"
 
|-valign="top"
−
|Read-in of native GEOS output
+
|MAPL3: Wildcards in GCHP History
−
|WUStL GCST
+
|Lizzie Lundgren (Harvard)
−
|Input data
+
|GCHP
 
|
 
|
−
*GCHP only
 
  
 
|-valign="top"
 
|-valign="top"
−
|Change GCHP advection inputs to use total pressure and mixing ratio rather than dry
+
|MAPL3: Output emissions with positive up convention in GCHP
−
|Sebastian Eastham (MIT)
+
|Lizzie Lundgren (Harvard)
−
|Transport
+
|GCHP
 
|
 
|
−
*Identified as a priority for GC 13, but not yet delivered
 
−
*GCHP only
 
  
 
|-valign="top"
 
|-valign="top"
−
|Add capability to read mass fluxes for use in advection
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
−
|Sebastian Eastham (MIT)
+
|Bob Yantosca (Harvard)
−
|Transport
+
|Performance
 
|
 
|
−
*Identified as a priority for GC 13, but not yet delivered
 
−
*GCHP only
 
  
 
|-valign="top"
 
|-valign="top"
−
|HTAPv3 emissions (0.1 deg, 2002-2018)
+
|Photophysical oxidation of aldehydes
−
|Emissions & Deposition WG
+
|Paulo Sebastianelli (Wollongong)<br>Jenny Fisher (Wollongong)
−
|Emissions
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
+
|DMS updates
−
|GCST
+
|Will Porter (UCR)
 
|Chemistry
 
|Chemistry
 
|
 
|
  
−
|}
+
|-valign="top"
 +
|Furans emission and chemistry
 +
|Lixu Jin (Montana)<br>Lu Hu (Montana)
 +
|Chemistry + <br>Emissions
 +
|
  
−
== Over the horizon (6-12 months) ==
+
|-valign="top"
 +
|Cl2 prodcution from Fe aerosol
 +
|Qianjie Chen (HK Poly)<br>Becky Alexander (UW)
 +
|Chemistry
 +
|
  
−
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.
+
|-valign="top"
 +
|VCP, cooking: tracers species added i.e., D5, ethanol affecting PAN
 +
|Kevin Bates (CU Boulder)
 +
|Emissions
 +
|
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|- bgcolor="#cccccc"
+
|bidirectional land-atmosphere exchange for Hg
−
!width="200px"|Feature
+
|Yuying Cui (MIT/Tsinghua)
−
!width="200px"|Contributor(s)
+
|Hg simulation
−
!width="100px"|Model scope
+
|
−
!width="420px"|Notes
+
  
 
|-valign="top"
 
|-valign="top"
−
|Methylethylketone chemistry
+
|OH covariances for inversions
−
|Jared Brewer (CSU)
+
|Elise Penn (Harvard)
−
|Chemistry
+
|Inversions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Add sulfate dependence to SOA yield from isoprene in simple SOA
+
|CESM2-GC offline
−
|Eloise Marais (Leicester)
+
|Seb Eastham (ICL)<br>Lee Murray (Rochester)
−
|Chemistry
+
|Met fields
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|GTMM updates
+
|Re-binning of off-line sea salt and dust for TOMAS
−
|Ben Geyman (Harvard)
+
|Betty Croft (Dalhousie)
−
|Hg simulation
+
|Microphysics
 
|
 
|
  
 +
|-valign="top"
 +
|TOMAS nucleation updates
 +
|Sam O'Donnell (CSU)
 +
|Microphysics
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|[https://github.com/geoschem/GCHP/issues/19 Integrating GMAO's tracer gridded component in GCHP]
+
|Stratospheric aerosol APM
−
|Christoph Keller (NASA GMAO)
+
|Fangqun Yu (SUNY Albany)
−
|Transport Tracer simulation
+
|Microphysics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Streamlining of specialty simulations through HEMCO and KPP
+
|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
−
|Chemistry, Specialty simulations
+
|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
 +
|
 +
 
 +
|-valign="top"
 +
|Intel IFX compiler
 +
|Bob Yantosca (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|CMake option to only build libraries but not executable, also passing C-preprocessor statements to turn off code
 +
|Bob Yantosca (Harvard)<br>Lee Murray (Rochester)
 +
|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
 
|
 
|
  
Line 516: Line 823:
  
 
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.
 
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"
Line 521: Line 829:
 
!width="200px"|Contributor(s)
 
!width="200px"|Contributor(s)
 
!width="100px"|Model scope
 
!width="100px"|Model scope
−
!width="420px"|Notes
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Implement isotope simulation for CO and CH4 in GCHP
+
|Modal aerosol model (MAM7) in GCHP
−
|Lee Murray (Rochester)
+
|Shreya Sharma (MIT)
−
|Specialty simulation
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Migrate LETFK DA scheme to GCHP
+
|Online OCIM ocean biogeochemistry
−
|Kazu Miyazaki (JPL)
+
|Lee Murray (Rochester)<br>Hannah Horowitz (UIUC)<br>Chris Holmes (FSU)
−
|Structural
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Super fast chemistry scheme
+
|Perchlorate chemistry
−
|Benjamin Brown-Steiner (AER)<br>Makoto Kelp (Harvard)
+
|Yuk Chun Chan (UW)
 
|Chemistry
 
|Chemistry
 
|
 
|
−
*SF mechanism has been implemented and benchmarked in GEOS-Chem 12.0.0. This mechanism is of interest for those groups wanting fast global simulation of oxidation fields in GEOS-Chem simulations focused on aerosol microphysics.
 
−
*The machine-learned chemical solver is still probably 12 months away from online implementation into GEOS-Chem.
 
  
 
|-valign="top"
 
|-valign="top"
−
|Add non-volatile cations to ISORROPIA
+
|Non-stomatal dry deposition (2-layer canopy model)
−
|Becky Alexander (UW)
+
|Michael Vermeuel (Purdue)
−
|Aerosols
+
|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"
 
|-valign="top"
−
|DMS oxidation scheme updating
+
|HFO and CF3CHO
−
|Becky Alexander (UW)<br>Qianjie Chen (UW)
+
|Beth Killen (Wollongong)<br>Jenny Fisher (Wollongong)
 
|Chemistry
 
|Chemistry
 
|
 
|
−
*Delayed - implemented pre-KPP
 
−
*Currently bring implemented in KPP by UC Riverside group
 
  
 
|-valign="top"
 
|-valign="top"
−
|Heterogeneous sulfate production
+
|Glyoxal updates from isoprene
−
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Tzung-May Fu (SUSTech)
 
|Chemistry
 
|Chemistry
 
|
 
|
−
*Delayed - implemented pre-KPP
 
  
 
|-valign="top"
 
|-valign="top"
−
|Hg in WRF-GC
+
|Iodine chemistry
−
|Yanxu Zhang (Nanjing)
+
|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
 
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Hg with blowing snow
+
|Soil Hg emissions 2010-2020
−
|Yanxu Xhang (Nanjing)
+
|Eric Roy (MIT)<br>Ari Feinberg (IQF-CSIC)
−
|Emissions, Hg simulation
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Hg isotopes
+
|Air-sea exchange parameterization
−
|Xiaotian Xu, Yanxu Xhang (Nanjing)
+
|Eric Roy (MIT)
 
|Hg simulation
 
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Hg in CESM CAM-CHEM
+
|Soil Hg emissions parameterization
−
|Peng Zhang, Yanxu Xhang (Nanjing)
+
|Ari Feinberg (IQF-CSIC)
 
|Hg simulation
 
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Complex / multicomplex variables
+
|Sea salt uptake of GOM
−
|Shannon Capps (Drexel)
+
|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
 
|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
 +
|
  
−
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
+
|-valign="top"
 +
|Comparing mass fluxes in GCHP vs. traditional lat/lon wind
 +
|Yuanjian Zhang (WashU), Seb Eastham (ICL)
 +
|Transport
 +
|
 +
 
 +
|}

Revision as of 13:36, 26 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
Hlobal 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 Not delivered
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
Retrieved from "https://wiki.seas.harvard.edu/geos-chem/index.php?title=GEOS-Chem_model_development_priorities&oldid=53844"