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]]'''''
 
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
  
On this page we list the current priorities for GEOS-Chem development. This list is continuously updated based on code readiness and input from the Working Groups and the Steering Committee.
+
On this page we list the current priorities for GEOS-Chem development. This list is continuously updated based on code readiness and input from the [https://geos-chem.seas.harvard.edu/geos-working-groups Working Groups] and the [https://geos-chem.seas.harvard.edu/geos-steering-cmte Steering Committee]. For history of past releases see the [[GEOS-Chem_versions|GEOS-Chem Versions wiki page]].
 +
 
 +
== 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 ==
 +
 +
See the links below for items merged and awaiting release.
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
!width="200px"|Feature
+
!width="200px"|Patch version in development
!width="200px"|Contributor(s)
+
!width="200px"|Major version in development
!width="100px"|Model scope
+
!width="300px"|Notes
+
  
 
|-valign="top"
 
|-valign="top"
|TBD
+
|align="center"|'''[[GEOS-Chem 14.0.2]]'''
|
+
|align="center"|'''[[GEOS-Chem 14.1.0]]'''
|
+
|
+
  
 
|}
 
|}
  
 
== 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]]. 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  
Line 28: Line 32:
 
!width="100px"|Model scope
 
!width="100px"|Model scope
 
!width="100px"|Ease of implementation
 
!width="100px"|Ease of implementation
!width="200px"|Notes
+
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/547 Update US emissions to NEI2016]
+
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option) / KPP 3.0.0
|Barron Henderson (EPA)<br>Lyssa Freese (MIT)
+
|Mike Long (Harvard) <br> Haipeng Lin (Harvard) <br> Bob Yantosca (GCST) <br> Lu Shen (PKU)
 +
|Chemistry
 +
|Complicated
 +
|
 +
*See H. Lin et al. [2022]<br>(DOI: [https://doi.org/10.31223/X5505V 10.31223/X5505V])
 +
*[https://github.com/KineticPreProcessor/KPP/releases/tag/3.0.0 KPP 3.0.0 is now released]
 +
 
 +
|-valign="top"
 +
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation via KPP]
 +
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)<br>Mike Long (Harvard)
 +
|Specialty simulation
 +
|Medium
 +
|
 +
*Slated for 14.1.0
 +
*[https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
 +
 
 +
|-valign="top"
 +
|TOMAS in GCHP
 +
|Betty Croft (WashU)
 +
|Aerosols
 +
|Simple
 +
|
 +
*Slated for 14.1.0
 +
*[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/geoschem/geos-chem/issues/1429 Update SO4 production in cloud-droplets over oceans]
 +
|Becky Alexander
 +
|Aerosols
 +
|Simple
 +
|
 +
*Slated for 14.1.0
 +
*See [https://github.com/geoschem/geos-chem/pull/1434 geoschem/geos-chem PR #1434]
 +
*See [https://github.com/geoschem/geos-chem/issues/1429 geoschem/geos-chem #1429]
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/pull/1334 RO2 diagnostic]
 +
|Melissa Sulprizio (Harvard)
 +
|Diagnostics
 +
|Simple
 +
|
 +
* See [https://github.com/geoschem/geos-chem/pull/1334 geoschem/geos-chem PR #1334]
 +
 
 +
|-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/1478 geoschem/geos-chem PR #1478]
 +
*See [https://github.com/geoschem/geos-chem/issues/770 geoschem/geos-chem #770]
 +
 
 +
|-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://data.pnnl.gov/dataset/CEDS-4-21-21 CEDS v2 emissions through 2019]
+
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx]
|Patrick Campbell (NOAA-ARL)
+
|Lee Murray (Rochester)
 
|Emissions
 
|Emissions
|Easy
+
|Simple
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[http://globalchange.bnu.edu.cn/research/laiv6 Updated Yuan/BNU MODIS LAI product (2000-2019)]
+
|[https://github.com/geoschem/geos-chem/discussions/1022 Add new species concentration diagnostic in units of molec/cm3]
|Jenny Fisher (U. Wollongong)
+
|Haipeng Lin (Harvard)
|Emissions<br>Dry deposition
+
|Diagnostics
|Easy
+
|Simple
 
|
 
|
*Processing scripts delivered to GCST (Aug 2020)
+
*See [https://github.com/geoschem/geos-chem/pull/1264 geoschem/geos-chem PR #1264]
  
 
|-valign="top"
 
|-valign="top"
|[[Grid-independent_emissions|Updated offline dust emissions]]
+
|Update transport tracer simulation for consistency with the tracer gridded component in GEOS
|Yanshun Li (WUStL)
+
|Melissa Sulprizio (Harvard)
|Emissions
+
|TransportTracer simulation
|Easy
+
|Simple
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/pull/459 Updates to enable automated run directory creation]
+
|Update MAPL to v2.26.0
|GCST
+
|Lizzie Lundgren (Harvard)
|Run directory
+
|GCHP
|Medium
+
|Simple
 
|
 
|
 +
*See [https://github.com/geoschem/GCHP/issues/265 geoschem/gchp #265]
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/666 Modularize FAST-JX]
+
|Retire land-water-ice (LWI) input field
|Lizzie Lundgren (GCST)
+
|Lizzie Lundgren (Harvard)
|Structural
+
|Met-fields
|Medium
+
|Simple
 
|
 
|
 +
*See [https://github.com/geoschem/geos-chem/pull/1435 geoschem/geos-chem PR #1435]
 +
*See [https://github.com/geoschem/HEMCO/pull/170 geoschem/hemco PR #170]
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/pull/728 Updates for GEOS-Chem in CESM]
+
|Fix missing value handling in GCHP
|Thibaud Fritz (MIT)
+
|Lizzie Lundgren (Harvard)
|Structural
+
|GCHP/GEOS
|Easy
+
|Simple
 
|
 
|
 +
*See [https://github.com/geoschem/GCHP/issues/258 geoschem/gchp #258]
  
 
|}
 
|}
  
== Feature integration in the queue ==
+
== 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  
 
{| border=1 cellspacing=0 cellpadding=5  
Line 91: Line 156:
 
!width="100px"|Model scope
 
!width="100px"|Model scope
 
!width="100px"|Ease of implementation
 
!width="100px"|Ease of implementation
!width="200px"|Notes
+
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
!colspan="5" bgcolor="#CCFFFF"|Updates that will affect full-chemistry simulations
+
|[https://github.com/geoschem/geos-chem/issues/1301 HTAPv3 at 0.1 deg]
 +
|Dandan Zhang (WashU)
 +
|Emissions
 +
|Simple
 +
|
 +
*Delivered to GCST (Jul 2022)
  
 +
|-valign="top"
 +
|Updating VOC fire emissions and adding lumped furan
 +
|Colette Heald (MIT)<br>Tess Carter (MIT)
 +
|Chemistry
 +
|Simple
 +
|
 +
*See T. Carter et al., [2022]<br>(DOI: [https://doi.org/10.5194/acp-2022-438 10.5194/acp-2022-438])
 +
 +
|}
 +
 +
== 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 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"|Ease of implementation
 +
!width="300px"|Notes and References
 +
 +
|-valign="top"
 +
|Tagged O3 simulation in GCHP
 +
|Xingpei Yu (PKU)<br>Jourdan He (WashU)
 +
|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"
 
|-valign="top"
|[https://gmd.copernicus.org/preprints/gmd-2020-380/ Dust emissions from Meng et al. (in review)]
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
|Jun Meng (WUStL)<br>Yanshun Li (WUStL)
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
 
|Emissions
 
|Emissions
|Easy
+
|Simple
 
|
 
|
 +
*Delivered to GCST (Jul 2022)
  
 
|-valign="top"
 
|-valign="top"
|[https://gmd.copernicus.org/articles/13/2879/2020/ Improved wet scavenging from Luo et al. (2020)] (as option)
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
|Gan Luo (Albany)<br>Fangqun Yu (Albany)
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
|Wet deposition
+
|Science
|Medium
+
|Simple
 
|
 
|
*Delivered to GCST (Nov 2020)
+
*Delivered to GCST (Feb 2021)
*See [https://github.com/geoschem/geos-chem/pull/522 geoschem/geos-chem PR #522]
+
* [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
*These updates will replace the Luo et al. (2019) option
+
  
 
|-valign="top"
 
|-valign="top"
|[https://acp.copernicus.org/articles/21/1861/2021/ Updated Rn-222 emissions]
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
|Bo Zhang
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
 
|Emissions
 
|Emissions
|Difficult
+
|Simple
 
|
 
|
*The existing Rn emissions will remain as an option
+
*Data files delivered to GCST (July 2021)
*Data are available at https://doi.org/10.5281/zenodo.3942287
+
*Data are quite large - need to think about storage, compression
*Code is based on v11-02f
+
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/331 Climatologies for lightning NOx]
+
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
|Lee Murray (Rochester)
+
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
|Emissions
+
|Chemistry
|Easy
+
|Medium
 
|
 
|
 +
*Delivered to GCST (Jun 2020)
 +
 +
|}
 +
 +
== Ready but not delivered ==
 +
 +
Features listed in this table are ready but have not been delivered to the GEOS-Chem Support Team.
 +
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[https://www.sciencedirect.com/science/article/abs/pii/S1352231019305138?via%3Dihub Trace metal simulation]
+
|Nitrate photolysis
|Junwei Xu (Dalhousie)
+
|Viral Shah (NASA GMAO)
|Specialty simulation
+
|Chemistry
|Easy
+
 
|
 
|
*Delivered to GCST (Nov 2020)
+
* Shah, V., D.J. Jacob, R. Dang, L.N. Lamsal, S.A. Strode, S.D. Steenrod, K.F. Boersma, S.D. Eastham, T.M. Fritz, C. Thompson, J. Peischl, I. Bourgeois, I.B. Pollack, B.A. Nault, R.C. Cohen, P. Campuzano-Jost, J.L. Jimenez, S.T. Andersen, L.J. Carpenter, T. Sherwen, and M.J. Evans, Nitrogen oxides in the free troposphere: Implications for tropospheric oxidants and the interpretation of satellite NO2 measurements, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2022-656, 2022.
*See [https://github.com/geoschem/geos-chem/pull/511 geoschem/geos-chem PR #511]
+
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/560 C2H4 and C2H2 chemistry]
+
|Online H2 chemistry
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
 
|Chemistry
 
|Chemistry
|Medium
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[http://acmg.seas.harvard.edu/publications/2020/moch_2020_hms_global.pdf HMS chemistry]
+
|Alk4 & R4N2 chemistry
|Jonathan Moch (Harvard)
+
|Jared Brewer (Harvard)
 
|Chemistry
 
|Chemistry
|Medium
 
 
|
 
|
*Delivered to GCST (Sep 2020)
+
* Brewer, J.F., D.J. Jacob, S.H. Jathar, Y. He, A. Akherati, S. Zhai, D.S. Jo, A. Hodzic, B.A. Nault, P. Campuzano-Jost, J.L. Jimenez, R.J. Park, Y.J. Oak, and H. Liao, A scheme for representing aromatic secondary organic aerosols in chemical transport models: application to source attribution of organic aerosols over South Korea during the KORUS-AQ campaign, submitted to J. Geophys. Res., 2022.
*See [https://github.com/geoschem/geos-chem/pull/456 geoschem/geos-chem PR #456]
+
  
|-
+
|-valign="top"
|[https://acp.copernicus.org/articles/17/3699/2017/ Blowing snow emissions of sea salt and sea salt bromide]
+
|Organic acids (RCOOH)
|Lyatt Jaegle (UW)
+
|Katie Travis (NASA)
|Emissions
+
|Chemistry
|Medium
+
 
|
 
|
*Delivered to GCST (Jun 2020)
 
*See [https://github.com/geoschem/geos-chem/pull/356 geoschem/geos-chem PR #356]
 
  
 
|-valign="top"
 
|-valign="top"
|[https://www.pnas.org/content/117/42/26076 Updated aerosol dry deposition]
+
|Update reactions with new JPL & IUPAC recommendations
|Jeff Pierce (CSU)
+
|Kelvin Bates (Harvard)
|Dry deposition
+
|Chemistry
|Easy
+
 
|
 
|
*See [https://github.com/geoschem/geos-chem/issues/604 geoschem/geos-chem #604]
+
* Currently running simulations to check magnitude of changes
  
 
|-valign="top"
 
|-valign="top"
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option)
+
|Improve carbon & nitrogen conservation in reactions
|Lu Shen (Harvard)
+
|Kelvin Bates (Harvard)
 
|Chemistry
 
|Chemistry
|Difficult
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation]
+
|Blowing snow sea salt in TOMAS
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)
+
|Betty Croft (Dalhousie)
|Specialty simulation
+
|Aerosols
|Medium
+
 
|
 
|
*See [https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
 
*Ideally implemented as a chemical mechanism in KPP
 
  
 +
|-valign="top"
 +
|Geologic emission of ethane and propane
 +
|Matthew Rowlinson and Mat Evans(York)
 +
|Emissions
 +
|
 +
* Global source from https://doi.org/10.1038/s41561-018-0073-0 with spatial distribution from https://doi.org/10.5194/essd-11-1-2019
 +
 +
|-valign="top"
 +
|New version of CEDS at 0.1 deg
 +
|Emma Knowland (NASA)
 +
|Emissions
 +
|
 +
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
 +
|Shixian Zhai (Harvard)
 +
|Emissions
 +
|
 +
* Need permission from Qiang Zhang (Tsinghua U.) to distribute data
 +
 +
|-valign="top"
 +
|KORUS-AQ emissions for East Asia
 +
|Katie Travis (NASA)
 +
|Emissions
 +
|
 +
* Need permission to distribute data
 +
 +
|-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
 +
|
 
|}
 
|}
  
== Feature integration not yet prioritized ==
+
== Almost there (< 6 months) ==
  
 +
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
  
{| border=1 cellspacing=0 cellpadding=5  
+
{|border=1 cellspacing=0 cellpadding=5
|-bgcolor="#CCCCCC"
+
|- bgcolor="#cccccc"
 
!width="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="200px"|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]
+
|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
+
|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"
|[http://acmg.seas.harvard.edu/publications/2021/shah_est_2021.pdf Updated Hg chemistry]
+
|ML algorithms for bulk aerosols
|Viral Shah (Harvard)<br>Colin Thackray (Harvard)
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
|Chemistry
+
|Aerosols
|Medium
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Landcover/Fire Emissions Offline LPJlmfire
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
|Loretta Mickley (Harvard)<br>Yang Li (Harvard)
+
|Shixian Zhai (Harvard)
|Emissions
+
|Aerosols
|Easy
+
 
|
 
|
  
|}
+
|-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)<br>Xuan Wang (CUHK)
 +
|Aerosols
 +
|
  
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="200px"|Feature
 
!width="200px"|Contributor(s)
 
!width="100px"|Model scope
 
!width="300px"|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"
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
+
|Update surface methane boundary condition using NOAA flask data
|Sam Silva (MIT)
+
|Lee Murray (Rochester)
|Science
+
|Input data
 
|
 
|
*Identified as a priority for GC 13, but not yet delivered
 
  
 
|-valign="top"
 
|-valign="top"
|[[Grid-independent_emissions|Updated offline biogenic 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
 
*Waiting on updated MODIS LAI data
 
  
 
|-valign="top"
 
|-valign="top"
|[[Grid-independent_emissions|Updated offline sea salt emissions]]
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
|Hongjian Weng (PKU)
+
|Jintai Lin (PKU)
 
|Emissions
 
|Emissions
|
+
|Horizontal resolution: 5km, temporal resolution: JJA mean (monthly data will be available at a later stage; please contact us).
*Identified as a priority for GC 13, but not yet delivered
+
  
 
|-valign="top"
 
|-valign="top"
|[[Grid-independent_emissions|Updated offline soil NOx emissions]]
+
|Updated biomass burning emission factors and species
|Hongjian Weng (PKU)
+
|Tess Carter (MIT)
 
|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
+
|Updated offline sea salt emissions
|GCST
+
|Hongjian Weng (PKU) <br> 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]
+
|HgII deposition too high in 13.4; Hg0 conc too low; should not use as is
|GCST
+
|Viral Shah (NASA GMAO)<br>Yanxu Zhang (Nanjing U.)<br>Ari Feinberg (MIT)
|Emissions
+
|Hg simulation
 
|
 
|
*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]
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
|GCST
+
|Sam Silva (MIT)
|Emissions
+
|Emissions &<br>Science
 
|
 
|
*Identified as a priority for GC 13, but not yet developed
+
*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"
|Diagnostic to archive XCO2, XCO, and XCH4
+
|Gridded EPA (GEPA) version 2 emissions for 2012-2018
|Dylan Jones (Toronto)
+
|Bram Maasakkers (SRON)<br>Erin McDuffie (WashU),<br>Melissa Sulprizio (Harvard)
|Diagnostic
+
|Emissions<br>CH4 simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
+
|Reduce dimension of analytical inversion
|Kazu Miyazaki (JPL)
+
|Hannah Nesser (Harvard)
|Input data
+
|Adjoint capability
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Aromatic VOC chemistry
+
|Retire all BPCH diagnostics
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
+
|Bob Yantosca (Harvard)
|Chemistry
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|BrC aging
+
|GEOS-Chem in CESM 2.3
|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
+
|Lizzie Lundgren (Harvard)
|Chemistry
+
|Interfacing with ESMs
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Shared Socioeconomic Pathways Emission Inventories
+
|Assess memory leak in GCHP
|Hong Liao (NUIST)
+
|Killian Murphy (York)
|Emissions
+
|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"
 
|-valign="top"
|Rediagnosis of RAS convection in GEOS-Chem
+
|Assess precision in GCHP internal state - use R4 for some?
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
+
|Lizzie Lundgren (Harvard)
|Convection
+
|Structural
 
|
 
|
*Work is finished and a manuscript is in preparation.
 
  
 
|-valign="top"
 
|-valign="top"
|Read-in of native GEOS output in GCHP
+
|Hybrid MPI-OpenMP in GCHP
|WUStL GCST
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
|Input data
+
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Modularization of GEOS-Chem: FAST-JX as proof-of-concept
+
|Convert HEMCO input files to YAML
|Lizzie Lundgren (GCST)
+
|Melissa Sulprizio (Harvard)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Change GCHP advection inputs to use total pressure and mixing ratio rather than dry
+
|Allow easy disabling of HEMCO emissions for testing
|Sebastian Eastham (MIT)
+
|Melissa Sulprizio (Harvard)
|GCHP<br>Transport
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Add capability to read mass fluxes for use in advection
+
|Improve run directory templating and creation with init_rd.sh and shared directories
|Sebastian Eastham (MIT)
+
|Jourdan He (WashU)
|GCHP<br>Input data<br>Transport
+
|Run directories
 +
|
 +
 
 +
|-valign="top"
 +
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
 +
|GCST?
 +
|Documentation
 +
|
 +
 
 +
|-valign="top"<
 +
|Upgrade Fast-JX to Cloud-J
 +
|Lizzie Lundgren (Harvard)
 +
|Structural
 
|
 
|
  
Line 398: Line 552:
  
 
== Over the horizon (6-12 months) ==
 
== Over the horizon (6-12 months) ==
 +
 +
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
Line 404: Line 560:
 
!width="200px"|Contributor(s)
 
!width="200px"|Contributor(s)
 
!width="100px"|Model scope
 
!width="100px"|Model scope
!width="300px"|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"
 +
|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 440: Line 763:
  
 
== Longer term (12-24 months)==
 
== Longer term (12-24 months)==
 +
 +
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
Line 446: Line 771:
 
!width="200px"|Contributor(s)
 
!width="200px"|Contributor(s)
 
!width="100px"|Model scope
 
!width="100px"|Model scope
!width="300px"|Notes
+
!width="420px"|Notes and References
 +
 
  
 
|-valign="top"
 
|-valign="top"
|GCHP Adjoint
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
|Daven Henze (CU Boulder)
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
|Structural
+
|Emissions
 
|
 
|
 +
*See [https://github.com/geoschem/geos-chem/issues/1288 geoschem/geos-chem #1288]
 +
*[https://github.com/geoschem/geos-chem/issues/1288#issuecomment-1255103962 NOTE: This feature has been tabled for the time being.]
  
 
|-valign="top"
 
|-valign="top"
|Implement isotope simulation for CO and CH4 in GCHP
+
|Updates to Aromatic chemistry
 +
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|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 481: Line 837:
  
 
|-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 19:42, 18 November 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 14.0.2 GEOS-Chem 14.1.0

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
Adaptive chemical solver (as option) / KPP 3.0.0 Mike Long (Harvard)
Haipeng Lin (Harvard)
Bob Yantosca (GCST)
Lu Shen (PKU)
Chemistry Complicated
Joint CO2-CO-CH4-OCS simulation via KPP Beata Bukosa (NIWA)
Kevin Bowman (JPL)
Mike Long (Harvard)
Specialty simulation Medium
TOMAS in GCHP Betty Croft (WashU) Aerosols Simple
Update SO4 production in cloud-droplets over oceans Becky Alexander Aerosols Simple
RO2 diagnostic Melissa Sulprizio (Harvard) Diagnostics Simple
Output satellite diagnostics as NetCDF Eloise Marais (UCL) Diagnostics Simple
Provide climatologies for open fire emissions Melissa Sulprizio (Harvard) Emissions Simple
Climatologies for lightning NOx Lee Murray (Rochester) Emissions Simple
Add new species concentration diagnostic in units of molec/cm3 Haipeng Lin (Harvard) Diagnostics Simple
Update transport tracer simulation for consistency with the tracer gridded component in GEOS Melissa Sulprizio (Harvard) TransportTracer simulation Simple
Update MAPL to v2.26.0 Lizzie Lundgren (Harvard) GCHP Simple
Retire land-water-ice (LWI) input field Lizzie Lundgren (Harvard) Met-fields Simple
Fix missing value handling in GCHP Lizzie Lundgren (Harvard) GCHP/GEOS 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
HTAPv3 at 0.1 deg Dandan Zhang (WashU) Emissions Simple
  • Delivered to GCST (Jul 2022)
Updating VOC fire emissions and adding lumped furan Colette Heald (MIT)
Tess Carter (MIT)
Chemistry 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 integration into GEOS-Chem.

Feature Contributor(s) Model scope Ease of implementation Notes and References
Tagged O3 simulation in GCHP Xingpei Yu (PKU)
Jourdan He (WashU)
TagO3 simulation Simple
Global continental chlorine (pCl and HCl) emissions Bingqing Zhang (Georgia Tech)
Pengfei Liu (Georgia Tech)
Emissions Simple
  • Delivered to GCST (Jul 2022)
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
Stratospheric HCN chemistry Armin Kleinbohl (JPL)
Debra Weisenstein (Harvard, retired)
Chemistry Medium
  • Delivered to GCST (Jun 2020)

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
Nitrate photolysis Viral Shah (NASA GMAO) Chemistry
  • Shah, V., D.J. Jacob, R. Dang, L.N. Lamsal, S.A. Strode, S.D. Steenrod, K.F. Boersma, S.D. Eastham, T.M. Fritz, C. Thompson, J. Peischl, I. Bourgeois, I.B. Pollack, B.A. Nault, R.C. Cohen, P. Campuzano-Jost, J.L. Jimenez, S.T. Andersen, L.J. Carpenter, T. Sherwen, and M.J. Evans, Nitrogen oxides in the free troposphere: Implications for tropospheric oxidants and the interpretation of satellite NO2 measurements, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2022-656, 2022.
Online H2 chemistry Maria Paula Pérez-Peña (UNSW)
Jenny Fisher (UOW)
Dylan Millet (UMN)
Chemistry
Alk4 & R4N2 chemistry Jared Brewer (Harvard) Chemistry
  • Brewer, J.F., D.J. Jacob, S.H. Jathar, Y. He, A. Akherati, S. Zhai, D.S. Jo, A. Hodzic, B.A. Nault, P. Campuzano-Jost, J.L. Jimenez, R.J. Park, Y.J. Oak, and H. Liao, A scheme for representing aromatic secondary organic aerosols in chemical transport models: application to source attribution of organic aerosols over South Korea during the KORUS-AQ campaign, submitted to J. Geophys. Res., 2022.
Organic acids (RCOOH) Katie Travis (NASA) Chemistry
Update reactions with new JPL & IUPAC recommendations Kelvin Bates (Harvard) Chemistry
  • Currently running simulations to check magnitude of changes
Improve carbon & nitrogen conservation in reactions Kelvin Bates (Harvard) Chemistry
Blowing snow sea salt in TOMAS Betty Croft (Dalhousie) Aerosols
Geologic emission of ethane and propane Matthew Rowlinson and Mat Evans(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
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
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)
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
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 Horizontal resolution: 5km, temporal resolution: JJA mean (monthly data will be available at a later stage; please contact us).
Updated biomass burning emission factors and species Tess Carter (MIT) Emissions
Updated offline sea salt emissions Hongjian Weng (PKU)
Jintai Lin (PKU)
Emissions
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
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 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 Jourdan He (WashU) Run directories
Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc GCST? Documentation
Upgrade Fast-JX to Cloud-J Lizzie Lundgren (Harvard) Structural

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
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


New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa)
Emissions
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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