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

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(Feature integration in progress)
(Feature integration in progress)
 
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|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
 
!width="200px"|Patch version in development
 
!width="200px"|Patch version in development
!width="200px"|Minor version in development
+
!width="200px"|Major version in development
  
 
|-valign="top"
 
|-valign="top"
|align="center"|'''[[GEOS-Chem 13.2.1]]'''
+
|align="center"| -
|align="center"|'''[[GEOS-Chem 13.2.0]]'''
+
|align="center"|'''[[GEOS-Chem 14.0.0]]'''
  
 
|}
 
|}
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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 [[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"
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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
+
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/547 Update US emissions to NEI2016] (as option)
+
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation via KPP]
|Barron Henderson (EPA)<br>Lyssa Freese (MIT)
+
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)<br>Mike Long (Harvard)
 +
|Specialty simulation
 +
|Medium
 +
|
 +
*[https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
 +
|Melissa Sulprizio (Harvard)
 
|Emissions
 
|Emissions
|Easy
+
|Simple
 
|
 
|
*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."
 
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/pull/459 Updates to enable automated run directory creation]
+
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx]
|GCST
+
|Lee Murray (Rochester)<br>Melissa Sulprizio (Harvard)
|Run directory
+
|Emissions
|Medium
+
|Simple
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/666 Modularize FAST-JX]
+
|[https://github.com/geoschem/geos-chem/discussions/1022 Add new species concentration diagnostic in units of molec/cm3]
|Lizzie Lundgren (GCST)
+
|Haipeng Lin (Harvard)
 +
|Diagnostics
 +
|Simple
 +
|
 +
*See [https://github.com/geoschem/geos-chem/pull/1264 geoschem/geos-chem PR #1264]
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/770 Output satellite diagnostics as NetCDF]
 +
|Eloise Marais (UCL)
 +
|Diagnostics
 +
|Simple
 +
|
 +
*See [https://github.com/geoschem/geos-chem/pull/1134 geoschem/geos-chem #1134]
 +
 
 +
|-valign="top"
 +
|Upgrade Fast-JX to Cloud-J
 +
|Lizzie Lundgren (Harvard)
 
|Structural
 
|Structural
|Difficult
+
|Complicated
 
|
 
|
*Will allow other models to use FAST-JX without rest of GEOS-Chem
+
*See [https://github.com/geoschem/cloud-j geoschem/cloud-j]
  
 
|-valign="top"
 
|-valign="top"
|Migrating sulfate chemistry into KPP
+
|Column diagnostics
|Mike Long (GCST)
+
|Bob Yantosca (Harvard)
|Chemistry &<br>Structural
+
|Diagnostics
|Difficult
+
|Simple
 
|
 
|
* Also includes Moch et al HMS chemistry
 
* Also includes C2H4 and C2H2 chemistry
 
  
 
|-valign="top"
 
|-valign="top"
|[http://acmg.seas.harvard.edu/publications/2020/moch_2020_hms_global.pdf HMS chemistry]
+
|RO2 diagnostic
|Jonathan Moch (Harvard)<br>Mike Long (GCST)
+
|Melissa Sulprizio (Harvard)
|Chemistry
+
|Diagnostics
|Easy
+
|Simple
 
|
 
|
*See [https://github.com/geoschem/geos-chem/pull/456 geoschem/geos-chem PR #456]
+
 
 +
|}
 +
 
 +
== Delivered and in the queue ==
 +
 
 +
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.
 +
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/560 C2H4 and C2H2 chemistry]
+
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option) / KPP 3.0.0
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)<br>Mike Long (GCST)
+
|Mike Long (Harvard) <br> Haipeng Lin (Harvard) <br> Bob Yantosca (GCST) <br> Lu Shen (PKU)
 
|Chemistry
 
|Chemistry
|Easy
+
|Complicated
 
|
 
|
*Includes adding C2H4 and C2H2 as advected species with emissions
+
*In testing, publication expected in mid-to-late 2022
 +
*Previous literature: [https://gmd.copernicus.org/articles/15/1677/2022/ Shen et al., 2022], [https://gmd.copernicus.org/articles/13/2475/2020/ Shen et al., 2020]
  
 
|-valign="top"
 
|-valign="top"
|Cleaning up heterogeneous chemistry reaction rate computations
+
|TOMAS in GCHP
|Bob Yantosca (GCST)
+
|Betty Croft (WashU)
|Chemistry &<br>Structural
+
|Aerosols
|Difficult
+
|Simple
 +
|See:
 +
*[https://github.com/geoschem/GCHP/pull/221 geoschem/GCHP PR #221]
 +
*[https://github.com/geoschem/geos-chem/pull/1261 geoschem/geos-chem PR #1261]
 +
*[https://github.com/geoschem/HEMCO/pull/145 geoschem/HEMCO PR #145]
 +
 
 +
|-valign-"top"
 +
|[https://github.com/arifein/pythonHgBenchmark Updated Hg benchmarking scripts in python]
 +
|Ari Feinberg (MIT)
 +
|Benchmarking
 +
|Simple
 
|
 
|
 +
* Ideally to be incorporated in GCPy
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/HEMCO/issues/92 Avoid double counting of acetone source from monoterpenes when using online MEGAN]
+
|Tagged O3 simulation in GCHP
|Dylan Millet (UMN)
+
|Xingpei Yu (PKU)
 +
|TagO3 simulation
 +
|Simple
 +
|
 +
*[https://github.com/geoschem/geos-chem/pull/1167 geoschem/geos-chem PR #1167]
 +
* Needs to be updated to a more recent version of GCHP
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
 +
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
 
|Emissions
 
|Emissions
|Easy
+
|Simple
 
|
 
|
*See [https://github.com/geoschem/HEMCO/pull/93 geoschem/HEMCO PR #93]
+
 
 +
|}
 +
 
 +
== Delivered but not yet prioritized ==
 +
 
 +
Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integrating into the model.
 +
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[http://acmg.seas.harvard.edu/publications/2021/shah_est_2021.pdf Updated Hg chemistry in KPP]
+
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
|Viral Shah (Harvard)<br>Colin Thackray (Harvard)<br>Mike Long (Harvard)
+
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
 
|Chemistry
 
|Chemistry
 
|Medium
 
|Medium
 
|
 
|
 +
*Delivered to GCST (Jun 2020)
  
 
|-valign="top"
 
|-valign="top"
|[https://acp.copernicus.org/preprints/acp-2021-605/ Aromatic VOC chemistry]
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)<br>Mike Long (Harvard)
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
|Chemistry
+
|Science
|Medium
+
|Simple
 
|
 
|
 +
*Delivered to GCST (Feb 2021)
 +
* [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
 +
  
 
|-valign="top"
 
|-valign="top"
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2020JD033439 CH3O2 + OH reaction]
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
|Kelvin Bates (Harvard)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
|Chemistry
+
|Emissions
|Easy
+
|Simple
 
|
 
|
*Reaction stoichiometry and rate constant in KPP
+
*Data files delivered to GCST (July 2021)
 +
*Data are quite large - need to think about storage, compression
  
 
|}
 
|}
  
== Feature integration in the queue ==
+
== Ready but not delivered ==
 +
 
 +
Features listed in this table are ready but have not been delivered to the GEOS-Chem Support Team.
  
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.
 
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
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!width="200px"|Contributor(s)
 
!width="200px"|Contributor(s)
 
!width="100px"|Model scope
 
!width="100px"|Model scope
!width="100px"|Ease of implementation
+
!width="300px"|Notes and References
!width="300px"|Notes
+
 
 +
|-valign="top"
 +
|Furans / Biomass burning
 +
|Colette Heald (MIT)<br>Tess Carter (MIT)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Online H2 chemistry
 +
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Alk4 & R4N2 chemistry
 +
|Jared Brewer (Harvard)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Organic acids (RCOOH)
 +
|Katie Travis (NASA)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Fix C2H4 chemistry bug
 +
|Lixu Jin (UMT)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Blowing snow sea salt in TOMAS
 +
|Betty Croft (Dalhousie)
 +
|Aerosols
 +
|
  
 
|-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)]
+
|Global continental chlorine (pCl and HCl) emissions
|Jun Meng (WUStL)<br>Yanshun Li (WUStL)
+
|Pengfei Liu (GTech)
 
|Emissions
 
|Emissions
|Easy
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[https://acp.copernicus.org/articles/21/1861/2021/ Updated Rn-222 emissions]
+
|Geologic short-chain alkanes
|Bo Zhang
+
|Matthew R. (York)
 
|Emissions
 
|Emissions
|Easy
 
 
|
 
|
*Existing Rn emissions will remain as an option
 
*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]
+
|New version of CEDS at 0.1 deg
|Lee Murray (Rochester)
+
|Emma Knowland (NASA)
 
|Emissions
 
|Emissions
|Easy
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[https://www.pnas.org/content/117/42/26076 Updated aerosol dry deposition]
+
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
|Jeff Pierce (CSU)
+
|Shixian Zhai (Harvard)
|Dry deposition
+
|Emissions
|Easy
+
 
|
 
|
*See [https://github.com/geoschem/geos-chem/issues/604 geoschem/geos-chem #604]
+
* Need permission from Qiang Zhang (Tsinghua U.) to distribute data
  
 
|-valign="top"
 
|-valign="top"
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option)
+
|KORUS-AQ emissions for East Asia
|Lu Shen (Harvard)
+
|Katie Travis (NASA)
|Chemistry
+
|Emissions
|Difficult
+
 
|
 
|
 +
* Need permission to distribute data
  
 
|-valign="top"
 
|-valign="top"
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation]
+
|[https://pubs.rsc.org/en/content/articlehtml/2022/em/d2em00032f Improvements in modelled Hg0 dry deposition to land]
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)
+
|Ari Feinberg (MIT)<br>Noelle Selin (MIT)<br>Thandolwethu Dlamini (MIT)<br>Martin Jiskra (UBasel)<br>Viral Shah (Harvard)
|Specialty simulation
+
|Hg simulation
|Medium
+
|
 +
* The study is already published and could be incorporated into the standard model as a default. Some tweaking to the reduction rate may be required as the model halogen oxidation has also been updated in v13.4.
 +
 
 +
|-valign="top"
 +
|[https://doi.org/10.34894/SZ2KOI AMAP 2015 emissions from GMA2018]
 +
|Helene Angot(MIT)<br>Ari Feinberg (MIT)<br>Noelle Selin (MIT)
 +
|Hg simulation
 +
|
 +
* Helene Angot has gridded these for input into HEMCO and these could be uploaded from our MIT group servers to the GEOS-Chem HEMCO database.
 +
 
 +
|-valign-"top"
 +
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
 +
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign-"top"
 +
|WRF-GC Hg simulation
 +
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation<br>WRF-GC
 +
|
 +
 
 +
|-valign="top"
 +
|Updated HgII gas-partical partitioning
 +
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
 +
|Hg simulation
 +
|
 +
* Should be option, not default
 +
 
 +
|-valign="top"
 +
|Dry deposition to F90 (readability)
 +
|Chris Holmes (FSU)
 +
|Dry deposition
 
|
 
|
*See [https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
 
*Ideally implemented as a chemical mechanism in KPP
 
  
 
|}
 
|}
  
== Feature integration not yet prioritized ==
+
== Almost there (< 6 months) ==
  
Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integrating into the model.
+
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  
+
 
|-bgcolor="#CCCCCC"
+
{|border=1 cellspacing=0 cellpadding=5
 +
|- 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://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
+
|DMS Chemistry
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
 
|Chemistry
 
|Chemistry
|Medium
 
 
|
 
|
*Delivered to GCST (Jun 2020)
 
  
 
|-valign="top"
 
|-valign="top"
|[https://gmd.copernicus.org/articles/13/2569/2020/ MEGAN3]
+
|PPN+hv, PPN+OH
|Sam Silva (MIT)
+
|Robert Ryan (UCL)
|Emissions
+
|Chemistry
|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]
+
|MBO
|Xu Yue (NUIST)
+
|Michael Vermeuel (UMN)
|Science
+
|Chemistry
|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]
+
|Nitrate photolysis
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
+
|Viral Shah (NASA GMAO)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]
 +
|Seb Eastham (MIT)
 
|Science
 
|Science
|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]]
+
|Re-binning of off-line sea salt and dust for use in TOMAS
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
+
|Betty Croft (Dalhousie)
|Chemistry
+
|Aerosols
|Easy
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archived CMIP6 Met Products for GEOS-Chem Input
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
|Lee Murray (Rochester)
+
|Betty Croft (Dalhousie)
|Input data
+
|Aerosols
|Easy
+
 
|
 
|
*See updates from [http://acmg.seas.harvard.edu/geos/word_pdf_docs/steering_cmte/gc_sc_minutes_24Feb2021.pdf Feb 2021 GCSC meeting]
 
*Official announcement coming soon
 
  
 
|-valign="top"
 
|-valign="top"
|Landcover/Fire Emissions Offline LPJlmfire
+
|ML algorithms for bulk aerosols
|Loretta Mickley (Harvard)<br>Yang Li (Harvard)
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
|Emissions
+
|Aerosols
|Easy
+
 
|
 
|
*Data files delivered to GCST (July 2021)
 
  
 
|-valign="top"
 
|-valign="top"
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
|Sam Silva (MIT)
+
|Shixian Zhai (Harvard)
|Science
+
|Aerosols
|Medium
+
 
|
 
|
*Code is available at https://zenodo.org/record/3614062
 
  
|}
+
|-valign="top"
 +
|Updates to Hodzic SOA scheme
 +
|Jared Brewer (Harvard)
 +
|Aerosols
 +
|
  
== Almost there (< 6 months) ==
+
|-valign="top"
 +
|Automated reduction in isoprene scheme
 +
|Dan Westervelt (Lamont-Doherty)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Brown carbon chemsitry
 +
|Jingqiu Mao (U. Alaska)<vr>Xuan Wang (CUHK)
 +
|Aerosols
 +
|
  
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
 
|- bgcolor="#cccccc"
 
!width="200px"|Feature
 
!width="200px"|Contributor(s)
 
!width="100px"|Model scope
 
!width="420px"|Notes
 
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/559 Implement H2 chemistry in UCX]
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
|Chris Holmes (FSU)
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
|Chemistry
+
|Convection
 
|
 
|
*Identified as a priority for GC 13, but not yet delivered
 
  
 
|-valign="top"
 
|-valign="top"
|[[Grid-independent_emissions|Updated offline biogenic emissions]]
+
|HTAPv3 at 0.1 deg
|Hongjian Weng (PKU)
+
|Dandan Zhang (WashU)
 
|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]]
+
|Update surface methane boundary condition using NOAA flask data
|Hongjian Weng (PKU)
+
|Lee Murray (Rochester)
|Emissions
+
|Input data
 
|
 
|
*Identified as a priority for GC 13, but not yet delivered
 
  
 
|-valign="top"
 
|-valign="top"
|[[Grid-independent_emissions|Updated offline soil NOx emissions]]
+
|Provide recommended rather than hard-coded scaling factors for online emissions
|Hongjian Weng (PKU)
+
|Melissa Sulprizio (Harvard)
 
|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
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
|GCST
+
|Jintai Lin (PKU)
 
|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]
+
|Updated biomass burning emission factors and species
|GCST
+
|Jess Haskins (Utah)
 
|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]
+
|Updated offline sea salt emissions
|GCST
+
|Hongjian Weng (PKU)
 
|Emissions
 
|Emissions
 
|
 
|
*Identified as a priority for GC 13, but not yet developed
 
  
 
|-valign="top"
 
|-valign="top"
|Diagnostic to archive XCO2, XCO, and XCH4
+
|HgII deposition too high in 13.4; Hg0 conc too low; should not use as is
|Dylan Jones (Toronto)
+
|Viral Shah (NASA GMAO)<br>Yanxu Zhang (Nanjing U.)<br>Ari Feinberg (MIT)
|Diagnostic
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
|Kazu Miyazaki (JPL)
+
|Sam Silva (MIT)
|Input data
+
|Emissions &<br>Science
 
|
 
|
 +
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
 +
*Needs to be updated to a more recent GEOS-Chem version
  
 
|-valign="top"
 
|-valign="top"
|BrC aging
+
|Python code for processing satellite output to produce column fields using averaging kernels
|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
+
|Hannah Nesser (Harvard)<br>Elise Penn (Harvard)
|Chemistry
+
|Post-processing
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Shared Socioeconomic Pathways Emission Inventories
+
|Derived products from a shapefile database for oil and gas infrastructure in North America
|Hong Liao (NUIST)
+
|Lee Murray (Rochester)
|Emissions
+
|Post-processing
 
|
 
|
  
 +
|-valign="top"
 +
|Gridded EPA (GEPA) version 2 emissions for 2012-2018
 +
|Bram Maasakkers (SRON)<br>Erin McDuffie (WashU),<br>Melissa Sulprizio (Harvard)
 +
|Emissions<br>CH4 simulation
 +
|
  
 
|-valign="top"
 
|-valign="top"
|Rediagnosis of RAS convection in GEOS-Chem
+
|Reduce dimension of analytical inversion
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
+
|Hannah Nesser (Harvard)
|Convection
+
|Adjoint capability
 
|
 
|
*Work is finished and a manuscript is in preparation.
 
  
 
|-valign="top"
 
|-valign="top"
|Read-in of native GEOS output
+
|Retire all BPCH diagnostics
|WUStL GCST
+
|Bob Yantosca (Harvard)
|Input data
+
|Diagnostics
 
|
 
|
GCHP only
 
  
 
|-valign="top"
 
|-valign="top"
|Change GCHP advection inputs to use total pressure and mixing ratio rather than dry
+
|GEOS-Chem in CESM 2.3
|Sebastian Eastham (MIT)
+
|Lizzie Lundgren (Harvard)
|Transport
+
|Interfacing with ESMs
 
|
 
|
*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
+
|Assess memory leak in GCHP
|Sebastian Eastham (MIT)
+
|Liam Bindle (WashU)<br>Killian Murphy (York)
|Transport
+
|Model performance
 +
|
 +
 
 +
|-valign="top"
 +
|Point to internal state for species mixing ratios in GCHP and GEOS
 +
|Lizzie Lundgren (Harvard)<br>Christoph Keller (NASA)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Assess precision in GCHP internal state - use R4 for some?
 +
|Lizzie Lundgren (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Hybrid MPI-OpenMP in GCHP
 +
|Seb Eastham (MIT)<br>Killian Murphy (York)
 +
|Model performance
 +
|
 +
 
 +
|-valign="top"
 +
|Convert HEMCO input files to YAML
 +
|Melissa Sulprizio (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Allow easy disabling of HEMCO emissions for testing
 +
|Melissa Sulprizio (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Improve run directory templating and creation with init_rd.sh and shared directories
 +
|Liam Bindle (WashU)
 +
|Run directories
 +
|
 +
 
 +
|-valign="top"
 +
|Expand SpeciesConc diagnostic unit options and rename
 +
|Melissa Sulprizio (Harvard)
 +
|Diagnostics
 +
|
 +
 
 +
|-valign="top"
 +
|Incorporate tools for generating input files for Fast-J/Cloud-J and planeflight
 +
|Jared Brewer (Harvard)
 +
|Post-processing
 +
|
 +
 
 +
|-valign="top"
 +
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
 +
|GCST?
 +
|Documentation
 
|
 
|
*Identified as a priority for GC 13, but not yet delivered
 
*GCHP only
 
  
 
|}
 
|}
Line 379: Line 556:
  
 
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.
 
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"
Line 384: Line 562:
 
!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"
|Methylethylketone chemistry
+
|Snow / Icy Bromine
|Jared Brewer (CSU)
+
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
 
|Chemistry
 
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Add sulfate dependence to SOA yield from isoprene in simple SOA
+
|Monoterpene oxidation scheme
|Eloise Marais (Leicester)
+
|Jessica Haskins (MIT)
 
|Chemistry
 
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|GTMM updates
+
|Fire related VOCs including furans
|Ben Geyman (Harvard)
+
|Lu Hu (UMT)<br>Lixu Jin (UMT)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Extension of UCX into the mesosphere
 +
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Methane flux ingestion
 +
|Eloise Marais (UCL)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Parameterized effective radius
 +
|Haihui Zhu (WashU)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Dust non-sphericity impacts on surface chem and optical properties
 +
|Inderjeet Singh (WashU)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Size-resolved stratospheric aerosol
 +
|Seb Eastham (MIT)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Extend aerosol settling
 +
|Eloise Marais (UCL)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Stratospheric aerosol APM
 +
|Fangqun Yu (SUNY)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Plume-in-grid model
 +
|Hongwei Sun (Harvard)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
 +
|Lee Murray (Rochester)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Seb aircraft emissions beyond recent 2019 update
 +
|Seb Eastham (MIT)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|FRP-based fire emsisions for eastern US at 0.2 deg
 +
|Charlie Fite (FSU)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Hg iodine chemistry
 +
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
 
|Hg simulation
 
|Hg simulation
 
|
 
|
  
 +
|-valign="top"
 +
|Hg simulation in GCHP
 +
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
 +
|Hg simulation
 +
|
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/GCHP/issues/19 Integrating GMAO's tracer gridded component in GCHP]
+
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
|Christoph Keller (NASA GMAO)
+
|Yanxu Zhang (Nanjing U.)
|Transport Tracer simulation
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Streamlining of specialty simulations through HEMCO and KPP
+
|Dry deposition diagnostics by land cover
|GCST
+
|Holly Nowell (FSU)
|Chemistry, Specialty simulations
+
|Diagnostics
 +
|
 +
 
 +
|-valign="top"
 +
|Dry deposition process diagnostics
 +
|Holly Nowell (FSU)
 +
|Diagnostics
 +
|
 +
 
 +
|-valign="top"
 +
|Isotope simulation for CO and CH4 in GCHP
 +
|Lee Murray (Rochester)
 +
|Carbon simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
 +
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
 +
|Emissions<br>CH4 simulation
 +
|
 +
 
 +
|-valign="top"
 +
|CHEEREIO EnKF
 +
|Drew Pendergrass (Harvard)
 +
|Adjoint capabilities
 +
|
 +
 
 +
|-valign="top"
 +
|Separate mixing and emissions
 +
|Bob Yantosca (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Modularization of aerosols code for interface with GOCART in GEOS
 +
|Christoph Keller (GMAO)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
 +
|Bob Yantosca (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Improve load balancing in GCHP
 +
|Seb Eastham (MIT)
 +
|Model performance
 +
|
 +
 
 +
|-valign="top"
 +
|Update to MAPL 3 in GCHP, including replacement of ExtData.rc with YAML file
 +
|Lizzie Lundgren (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
 +
|Bob Yantosca (Harvard)
 +
|Model performance
 +
|
 +
 
 +
|-valign="top"
 +
|Limit allocation of State_Met to what is needed per simulation
 +
|Melissa Sulprizio (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Make frequency of HEMCO restart file configurable
 +
|Melissa Sulprizio (Harvard)
 +
|Diagnostics
 +
|
 +
 
 +
|-valign="top"
 +
|Apply masks/scaling in HEMCO based on input category or flag
 +
|Melissa Sulprizio (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
 +
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
 +
|Transport
 +
|
 +
 
 +
|-valign="top"
 +
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
 +
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
 +
|Transport
 +
|
 +
 
 +
|-valign="top"
 +
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
 +
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
 +
|Transport
 
|
 
|
  
Line 422: Line 773:
  
 
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 427: Line 779:
 
!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"
|GCHP Adjoint
+
|Updates to Aromatic chemistry
|Daven Henze (CU Boulder)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
|Structural
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Implement isotope simulation for CO and CH4 in GCHP
+
|Nitrate photolysis
 +
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|In aerosol chemistry Halogens
 +
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Benchmark box model of GC Chemistry
 +
|Katie Travis (NASA)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Alkyl nitrates Alk7, PHAN
 +
|Katie Travis (NASA)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Add stratospheric ozone species to full-chemistry simulations
 
|Lee Murray (Rochester)
 
|Lee Murray (Rochester)
|Specialty simulation
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Migrate LETFK DA scheme to GCHP
+
|Perchlorate chemistry
|Kazu Miyazaki (JPL)
+
|Yuk Chun Chan (UWAB)
|Structural
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Super fast chemistry scheme
+
|Explicit heterogeneous sulfate chemistry
|Benjamin Brown-Steiner (AER)<br>Makoto Kelp (Harvard)
+
|Katie Travis (NASA)<br>Becky Alexander (UT)
 
|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
+
|ISORROPIA-lite
 
|Becky Alexander (UW)
 
|Becky Alexander (UW)
 
|Aerosols
 
|Aerosols
Line 462: Line 836:
  
 
|-valign="top"
 
|-valign="top"
|DMS oxidation scheme updating
+
|HOx and ozone "emissions" from lightning as option in model to play with
|Becky Alexander (UW)<br>Qianjie Chen (UW)
+
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
|Chemistry
+
|Emissions
 
|
 
|
*Delayed - implemented pre-KPP
 
*Currently bring implemented in KPP by UC Riverside group
 
  
 
|-valign="top"
 
|-valign="top"
|Heterogeneous sulfate production
+
|Sea salt aerosol from sea ice leads
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Hannah Horowitz (U. Illinois)
|Chemistry
+
|Emissions
 
|
 
|
*Delayed - implemented pre-KPP
 
  
 
|-valign="top"
 
|-valign="top"
|Hg in WRF-GC
+
|Drought-stress algorithm
|Yanxu Zhang (Nanjing)
+
|Wei Li (U. Houston)
|Hg simulation
+
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Hg with blowing snow
+
|Biomass burning injection height profiles
|Yanxu Xhang (Nanjing)
+
|Inderjeet Singh (WashU)
|Emissions, Hg simulation
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Hg isotopes
+
|OCIM integration
|Xiaotian Xu, Yanxu Xhang (Nanjing)
+
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
|Hg simulation
+
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Hg in CESM CAM-CHEM
+
|Updating landcover products in GEOS-Chem
|Peng Zhang, Yanxu Xhang (Nanjing)
+
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
|Hg simulation
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Complex / multicomplex variables
+
|Dry deposition physical improvement
|Shannon Capps (Drexel)
+
|Chris Holmes (FSU)
|Structural
+
|Dry deposition
 +
|
 +
 
 +
|-valign="top"
 +
|Extend the IMI system to other trace gases
 +
|Lucas Estrada (Harvard)
 +
|Adjoint capabilities
 +
|
 +
 
 +
 
 +
|-valign="top"
 +
|TOMAS WRF-GC in regional Thailand simulation
 +
|Win Trivitayanurak (Chulalongkorn U)
 +
|Aerosols
 
|
 
|
  

Latest revision as of 19:45, 30 June 2022

GEOS-Chem 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 Working Groups and the Steering Committee. For history of past releases see the GEOS-Chem Versions wiki page.

Release schedule

Please see the GEOS-Chem Release Proposal outlining the procedure and schedule for releasing GEOS-Chem versions.

Merged and awaiting release

See the links below for items merged and awaiting release.

Patch version in development Major version in development
- GEOS-Chem 14.0.0

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
Joint CO2-CO-CH4-OCS simulation via KPP Beata Bukosa (NIWA)
Kevin Bowman (JPL)
Mike Long (Harvard)
Specialty simulation Medium
Provide climatologies for open fire emissions Melissa Sulprizio (Harvard) Emissions Simple
Climatologies for lightning NOx Lee Murray (Rochester)
Melissa Sulprizio (Harvard)
Emissions Simple
Add new species concentration diagnostic in units of molec/cm3 Haipeng Lin (Harvard) Diagnostics Simple
Output satellite diagnostics as NetCDF Eloise Marais (UCL) Diagnostics Simple
Upgrade Fast-JX to Cloud-J Lizzie Lundgren (Harvard) Structural Complicated
Column diagnostics Bob Yantosca (Harvard) Diagnostics Simple
RO2 diagnostic Melissa Sulprizio (Harvard) Diagnostics Simple

Delivered and in the queue

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.

Feature Contributor(s) Model scope Ease of implementation Notes and References
Adaptive chemical solver (as option) / KPP 3.0.0 Mike Long (Harvard)
Haipeng Lin (Harvard)
Bob Yantosca (GCST)
Lu Shen (PKU)
Chemistry Complicated
TOMAS in GCHP Betty Croft (WashU) Aerosols Simple See:
Updated Hg benchmarking scripts in python Ari Feinberg (MIT) Benchmarking Simple
  • Ideally to be incorporated in GCPy
Tagged O3 simulation in GCHP Xingpei Yu (PKU) TagO3 simulation Simple
New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa)
Emissions Simple

Delivered but not yet prioritized

Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integrating into the model.

Feature Contributor(s) Model scope Ease of implementation Notes and References
Stratospheric HCN chemistry Armin Kleinbohl (JPL)
Debra Weisenstein (Harvard, retired)
Chemistry Medium
  • Delivered to GCST (Jun 2020)
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam(CUHK)
Amos Tai (CUHK)
Science Simple


LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100 Yang Li (Baylor University)
Loretta Mickley (Harvard)
Emissions Simple
  • Data files delivered to GCST (July 2021)
  • Data are quite large - need to think about storage, compression

Ready but not delivered

Features listed in this table are ready but have not been delivered to the GEOS-Chem Support Team.

Feature Contributor(s) Model scope Notes and References
Furans / Biomass burning Colette Heald (MIT)
Tess Carter (MIT)
Chemistry
Online H2 chemistry Maria Paula Pérez-Peña (UNSW)
Jenny Fisher (UOW)
Dylan Millet (UMN)
Chemistry
Alk4 & R4N2 chemistry Jared Brewer (Harvard) Chemistry
Organic acids (RCOOH) Katie Travis (NASA) Chemistry
Fix C2H4 chemistry bug Lixu Jin (UMT) Chemistry
Blowing snow sea salt in TOMAS Betty Croft (Dalhousie) Aerosols
Global continental chlorine (pCl and HCl) emissions Pengfei Liu (GTech) Emissions
Geologic short-chain alkanes Matthew R. (York) Emissions
New version of CEDS at 0.1 deg Emma Knowland (NASA) Emissions
MEIC (China regional) for 2000-2017 at 0.5x0.625 deg Shixian Zhai (Harvard) Emissions
  • Need permission from Qiang Zhang (Tsinghua U.) to distribute data
KORUS-AQ emissions for East Asia Katie Travis (NASA) Emissions
  • Need permission to distribute data
Improvements in modelled Hg0 dry deposition to land Ari Feinberg (MIT)
Noelle Selin (MIT)
Thandolwethu Dlamini (MIT)
Martin Jiskra (UBasel)
Viral Shah (Harvard)
Hg simulation
  • The study is already published and could be incorporated into the standard model as a default. Some tweaking to the reduction rate may be required as the model halogen oxidation has also been updated in v13.4.
AMAP 2015 emissions from GMA2018 Helene Angot(MIT)
Ari Feinberg (MIT)
Noelle Selin (MIT)
Hg simulation
  • Helene Angot has gridded these for input into HEMCO and these could be uploaded from our MIT group servers to the GEOS-Chem HEMCO database.
Australian anthropogenic Hg emissions Stephen MacFarlane (UOW)
Jenny Fisher (UOW)
Hannah Horowitz (U. Illinois)
Viral Shah (Harvard)
Hg simulation
WRF-GC Hg simulation Xiaotian Xu (Nanjing U.)
Yanxu Zhang (Nanjing U.)
Hg simulation
WRF-GC
Updated HgII gas-partical partitioning Kaiyun Liu (Tsinghua U.)
Qingru Wu (Tsinghua U.)
Shuxiao Wang (Tsinghua U.)
Hg simulation
  • Should be option, not default
Dry deposition to F90 (readability) Chris Holmes (FSU) Dry deposition

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


DMS Chemistry Linia Tashmim (UC Riverside)
William Porter (UC Riverside)
Chemistry
PPN+hv, PPN+OH Robert Ryan (UCL) Chemistry
MBO Michael Vermeuel (UMN) Chemistry
Nitrate photolysis Viral Shah (NASA GMAO) Chemistry
Stratospheric adjustment with RRTMG in GEOS-Chem Seb Eastham (MIT) Science
Re-binning of off-line sea salt and dust for use in TOMAS Betty Croft (Dalhousie) Aerosols
Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90 Betty Croft (Dalhousie) Aerosols
ML algorithms for bulk aerosols Arshad Nair (SUNY Albany)
Fangqun Yu (SUNY Albany)
Aerosols
PM2.5 and PM10 calculations: aerodynamic vs geometric diameters Shixian Zhai (Harvard) Aerosols
Updates to Hodzic SOA scheme Jared Brewer (Harvard) Aerosols
Automated reduction in isoprene scheme Dan Westervelt (Lamont-Doherty) Aerosols
Brown carbon chemsitry Jingqiu Mao (U. Alaska)<vr>Xuan Wang (CUHK) Aerosols


GEOS resolution and subgrid convection - Part 2 RAS parameter tuning Tailong He (Toronto)
Dylan Jones (Toronto)
Andrea Molod (NASA GMAO)
Convection
HTAPv3 at 0.1 deg Dandan Zhang (WashU) Emissions
Update surface methane boundary condition using NOAA flask data Lee Murray (Rochester) Input data
Provide recommended rather than hard-coded scaling factors for online emissions Melissa Sulprizio (Harvard) Emissions
High-res top-down TROPOMI-derived seasonal mean NOx emissions for China Jintai Lin (PKU) Emissions
Updated biomass burning emission factors and species Jess Haskins (Utah) Emissions
Updated offline sea salt emissions Hongjian Weng (PKU) Emissions
HgII deposition too high in 13.4; Hg0 conc too low; should not use as is Viral Shah (NASA GMAO)
Yanxu Zhang (Nanjing U.)
Ari Feinberg (MIT)
Hg simulation
Canopy Physics Model Sam Silva (MIT) Emissions &
Science
Python code for processing satellite output to produce column fields using averaging kernels Hannah Nesser (Harvard)
Elise Penn (Harvard)
Post-processing
Derived products from a shapefile database for oil and gas infrastructure in North America Lee Murray (Rochester) Post-processing
Gridded EPA (GEPA) version 2 emissions for 2012-2018 Bram Maasakkers (SRON)
Erin McDuffie (WashU),
Melissa Sulprizio (Harvard)
Emissions
CH4 simulation
Reduce dimension of analytical inversion Hannah Nesser (Harvard) Adjoint capability
Retire all BPCH diagnostics Bob Yantosca (Harvard) Diagnostics
GEOS-Chem in CESM 2.3 Lizzie Lundgren (Harvard) Interfacing with ESMs
Assess memory leak in GCHP Liam Bindle (WashU)
Killian Murphy (York)
Model performance
Point to internal state for species mixing ratios in GCHP and GEOS Lizzie Lundgren (Harvard)
Christoph Keller (NASA)
Structural
Assess precision in GCHP internal state - use R4 for some? Lizzie Lundgren (Harvard) Structural
Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT)
Killian Murphy (York)
Model performance
Convert HEMCO input files to YAML Melissa Sulprizio (Harvard) Structural
Allow easy disabling of HEMCO emissions for testing Melissa Sulprizio (Harvard) Structural
Improve run directory templating and creation with init_rd.sh and shared directories Liam Bindle (WashU) Run directories
Expand SpeciesConc diagnostic unit options and rename Melissa Sulprizio (Harvard) Diagnostics
Incorporate tools for generating input files for Fast-J/Cloud-J and planeflight Jared Brewer (Harvard) Post-processing
Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc GCST? Documentation

Over the horizon (6-12 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.

Feature Contributor(s) Model scope Notes and References
Snow / Icy Bromine Becky Alexander (UW)
William Swanson (U. Alaska)
Shuting Zhai (UW)
Chemistry
Monoterpene oxidation scheme Jessica Haskins (MIT) Chemistry
Fire related VOCs including furans Lu Hu (UMT)
Lixu Jin (UMT)
Chemistry
Extension of UCX into the mesosphere Seb Eastham (MIT)
Eric Fleming (NASA)
Chemistry
Methane flux ingestion Eloise Marais (UCL) Chemistry
Parameterized effective radius Haihui Zhu (WashU) Aerosols
Dust non-sphericity impacts on surface chem and optical properties Inderjeet Singh (WashU) Aerosols
Size-resolved stratospheric aerosol Seb Eastham (MIT) Aerosols
Extend aerosol settling Eloise Marais (UCL) Aerosols
Stratospheric aerosol APM Fangqun Yu (SUNY) Aerosols
Plume-in-grid model Hongwei Sun (Harvard) Chemistry
Updated lightning NOx: Prescribe from ground and geostationary lightning flashes Lee Murray (Rochester) Emissions
Seb aircraft emissions beyond recent 2019 update Seb Eastham (MIT) Emissions
FRP-based fire emsisions for eastern US at 0.2 deg Charlie Fite (FSU) Emissions
Hg iodine chemistry Yiming Fu
Yanxu Zhang (Nanjing U.)
Hg simulation
Hg simulation in GCHP Ari Feinberg (MIT)
Lyssa Freese (MIT)
Hg simulation
Update Hg ocean and soil boundary conditions for consistency with new chemistry Yanxu Zhang (Nanjing U.) Hg simulation
Dry deposition diagnostics by land cover Holly Nowell (FSU) Diagnostics
Dry deposition process diagnostics Holly Nowell (FSU) Diagnostics
Isotope simulation for CO and CH4 in GCHP Lee Murray (Rochester) Carbon simulation
Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3) Melissa Sulprizio (Harvard)
Tia Scarpelli (U. Edinburgh)
Zichong Chen (Harvard)
Emissions
CH4 simulation
CHEEREIO EnKF Drew Pendergrass (Harvard) Adjoint capabilities
Separate mixing and emissions Bob Yantosca (Harvard) Structural
Modularization of aerosols code for interface with GOCART in GEOS Christoph Keller (GMAO) Structural
Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism Bob Yantosca (Harvard) Structural
Improve load balancing in GCHP Seb Eastham (MIT) Model performance
Update to MAPL 3 in GCHP, including replacement of ExtData.rc with YAML file Lizzie Lundgren (Harvard) Structural
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone Bob Yantosca (Harvard) Model performance
Limit allocation of State_Met to what is needed per simulation Melissa Sulprizio (Harvard) Structural
Make frequency of HEMCO restart file configurable Melissa Sulprizio (Harvard) Diagnostics
Apply masks/scaling in HEMCO based on input category or flag Melissa Sulprizio (Harvard) Structural
Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer Bo Zhang (NIA)
Hongyu Liu (NIA / NASA Langley)
Transport
Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer Gan Luo (SUNY Albany)
Fangqun Yu (SUNY-Albany)
Transport
Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons Seb Eastham (MIT)
Clara Orbe (NASA GISS)
Andrew Schuh (CSU)
Transport

Longer term (12-24 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.

Feature Contributor(s) Model scope Notes and References
Updates to Aromatic chemistry Stephen MacFarlane (UOW)
Jenny Fisher (UOW)
Chemistry
Nitrate photolysis Mat Evans (York)
Thomas Sherwen (York)
Matthew Rowlinson (York)
Chemistry
In aerosol chemistry Halogens Mat Evans (York)
Hansen Cao (CU Boulder)
Chemistry
Benchmark box model of GC Chemistry Katie Travis (NASA) Chemistry
Alkyl nitrates Alk7, PHAN Katie Travis (NASA) Chemistry
Add stratospheric ozone species to full-chemistry simulations Lee Murray (Rochester) Chemistry
Perchlorate chemistry Yuk Chun Chan (UWAB) Chemistry
Explicit heterogeneous sulfate chemistry Katie Travis (NASA)
Becky Alexander (UT)
Chemistry
ISORROPIA-lite Becky Alexander (UW) Aerosols
HOx and ozone "emissions" from lightning as option in model to play with Jingqiu (Alaska)
Lee Murray (Rochester)
Emissions
Sea salt aerosol from sea ice leads Hannah Horowitz (U. Illinois) Emissions
Drought-stress algorithm Wei Li (U. Houston)
Biomass burning injection height profiles Inderjeet Singh (WashU) Emissions
OCIM integration Chris Holmes (FSU)
Lee Murray (Rochester)
Updating landcover products in GEOS-Chem Chris Holmes (FSU)
Jeff Geddes (BU)
Input data
Dry deposition physical improvement Chris Holmes (FSU) Dry deposition
Extend the IMI system to other trace gases Lucas Estrada (Harvard) Adjoint capabilities


TOMAS WRF-GC in regional Thailand simulation Win Trivitayanurak (Chulalongkorn U) Aerosols

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