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 [http://acmg.seas.harvard.edu/geos/geos_working_groups.html Working Groups] and the [http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html Steering Committee]. For history of past releases see the [[GEOS-Chem_versions|GEOS-Chem Versions wiki page]].
+
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 ==
 
== Release schedule ==
Line 17: Line 17:
  
 
|-valign="top"
 
|-valign="top"
|align="center"| -
+
|align="center"|None
|align="center"|'''[[GEOS-Chem 14.0.0]]'''
+
|align="center"|'''[[GEOS-Chem 14.1.0]]'''
  
 
|}
 
|}
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!width="100px"|Ease of implementation
 
!width="100px"|Ease of implementation
 
!width="300px"|Notes and References
 
!width="300px"|Notes and References
 +
 +
|-valign="top"
 +
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option) / KPP 3.0.0
 +
|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"
 
|-valign="top"
Line 40: Line 49:
 
|Medium
 
|Medium
 
|
 
|
 +
*Slated for 14.1.0
 
*[https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
 
*[https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
+
|TOMAS in GCHP
|Melissa Sulprizio (Harvard)
+
|Betty Croft (WashU)
|Emissions
+
|Aerosols
|Easy
+
|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"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx]
+
|[https://github.com/geoschem/geos-chem/issues/1429 Update SO4 production in cloud-droplets over oceans]
|Lee Murray (Rochester)<br>Melissa Sulprizio (Harvard)
+
|Becky Alexander
|Emissions
+
|Aerosols
|Easy
+
|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"
 
|-valign="top"
|[[Grid-independent_emissions|Updated offline biogenic emissions]]
+
|[https://github.com/geoschem/geos-chem/pull/1334 RO2 diagnostic]
|Hongjian Weng (PKU)
+
|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/331 Provide climatologies for open fire emissions]
 +
|Melissa Sulprizio (Harvard)
 
|Emissions
 
|Emissions
|Easy
+
|Simple
 
|
 
|
*Delivered to GCST (Dec 2021)
 
  
 
|-valign="top"
 
|-valign="top"
|[[Grid-independent_emissions|Updated offline soil NOx emissions]]
+
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx]
|Hongjian Weng (PKU)
+
|Lee Murray (Rochester)
 
|Emissions
 
|Emissions
|Easy
+
|Simple
 
|
 
|
*Delivered to GCST (Dec 2021)
 
  
 
|-valign="top"
 
|-valign="top"
Line 76: Line 99:
 
|Haipeng Lin (Harvard)
 
|Haipeng Lin (Harvard)
 
|Diagnostics
 
|Diagnostics
|Easy
+
|Simple
 
|
 
|
 
*See [https://github.com/geoschem/geos-chem/pull/1264 geoschem/geos-chem PR #1264]
 
*See [https://github.com/geoschem/geos-chem/pull/1264 geoschem/geos-chem PR #1264]
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/770 Output satellite diagnostics as NetCDF]
+
|Update transport tracer simulation for consistency with the tracer gridded component in GEOS
|Eloise Marais (UCL)  
+
|Melissa Sulprizio (Harvard)
|Diagnostics
+
|TransportTracer simulation
|Easy
+
|Simple
 
|
 
|
*See [https://github.com/geoschem/geos-chem/pull/1134 geoschem/geos-chem #1134]
 
  
 
|-valign="top"
 
|-valign="top"
|Upgrade Fast-JX to Cloud-J
+
|Update MAPL to v2.26.0
 
|Lizzie Lundgren (Harvard)
 
|Lizzie Lundgren (Harvard)
|Structural
+
|GCHP
|Difficult
+
|Simple
 
|
 
|
* [https://github.com/geoschem/cloud-j geoschem/cloud-j]
+
*See [https://github.com/geoschem/GCHP/issues/265 geoschem/gchp #265]
*Ongoing
+
  
 
|-valign="top"
 
|-valign="top"
|Column diagnostics
+
|Retire land-water-ice (LWI) input field
|Bob Yantosca (Harvard)
+
|Lizzie Lundgren (Harvard)
|Diagnostics
+
|Met-fields
|Easy
+
|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"
|RO2 diagnostic
+
|Fix missing value handling in GCHP
|Melissa Sulprizio (Harvard)
+
|Lizzie Lundgren (Harvard)
|Diagnostics
+
|GCHP/GEOS
|Easy
+
|Simple
 
|
 
|
 +
*See [https://github.com/geoschem/GCHP/issues/258 geoschem/gchp #258]
  
 
|}
 
|}
Line 126: Line 150:
  
 
|-valign="top"
 
|-valign="top"
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option) / KPP 3.0.0
+
|[https://github.com/geoschem/geos-chem/issues/1301 HTAPv3 at 0.1 deg]
|Mike Long (Harvard) <br> Haipeng Lin (Harvard) <br> Bob Yantosca (GCST) <br> Lu Shen (PKU)
+
|Dandan Zhang (WashU)
|Chemistry
+
|Emissions
|Difficult
+
|Simple
 
|
 
|
*In testing, publication expected in mid-to-late 2022
+
*Delivered to GCST (Jul 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"
|TOMAS in GCHP
+
|Updating VOC fire emissions and adding lumped furan
|Betty Croft (WashU)
+
|Colette Heald (MIT)<br>Tess Carter (MIT)
|Aerosols
+
|Chemistry
|Easy
+
|Simple
|See:
+
|
*[https://github.com/geoschem/GCHP/pull/221 geoschem/GCHP PR #221]
+
*See T. Carter et al., [2022]<br>(DOI: [https://doi.org/10.5194/acp-2022-438 10.5194/acp-2022-438])
*[https://github.com/geoschem/geos-chem/pull/1261 geoschem/geos-chem PR #1261]
+
*[https://github.com/geoschem/HEMCO/pull/145 geoschem/HEMCO PR #145]
+
  
 
|}
 
|}
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== Delivered but not yet prioritized ==
 
== 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.
+
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  
 
{| border=1 cellspacing=0 cellpadding=5  
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|-valign="top"
 
|-valign="top"
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
+
|Tagged O3 simulation in GCHP
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
+
|Xingpei Yu (PKU)<br>Jourdan He (WashU)
|Chemistry
+
|TagO3 simulation
|Medium
+
|Simple
 
|
 
|
*Delivered to GCST (Jun 2020)
+
*[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://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
 +
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
 +
|Emissions
 +
|Simple
 +
|
 +
*Delivered to GCST (Jul 2022)
  
 
|-valign="top"
 
|-valign="top"
Line 170: Line 200:
 
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Science
 
|Science
|Easy
+
|Simple
 
|
 
|
 
*Delivered to GCST (Feb 2021)
 
*Delivered to GCST (Feb 2021)
Line 176: Line 206:
  
 
|-valign="top"
 
|-valign="top"
|Landcover/Fire Emissions Offline LPJlmfire
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
|Loretta Mickley (Harvard)<br>Yang Li (Harvard)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
 
|Emissions
 
|Emissions
|Easy
+
|Simple
 
|
 
|
 
*Data files delivered to GCST (July 2021)
 
*Data files delivered to GCST (July 2021)
 +
*Data are quite large - need to think about storage, compression
 +
 +
|-valign="top"
 +
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
 +
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
 +
|Chemistry
 +
|Medium
 +
|
 +
*Delivered to GCST (Jun 2020)
  
 
|}
 
|}
Line 197: Line 236:
  
 
|-valign="top"
 
|-valign="top"
|Furans / Biomass burning
+
|Nitrate photolysis
|Colette Heald (MIT)<br>Tess Carter (MIT)
+
|Viral Shah (NASA GMAO)
 
|Chemistry
 
|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.
  
 
|-valign="top"
 
|-valign="top"
Line 213: Line 253:
 
|Chemistry
 
|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.
  
 
|-valign="top"
 
|-valign="top"
Line 221: Line 262:
  
 
|-valign="top"
 
|-valign="top"
|Fix C2H4 chemistry bug
+
|Update reactions with new JPL & IUPAC recommendations
|Lixu Jin (UMT)
+
|Kelvin Bates (Harvard)
 +
|Chemistry
 +
|
 +
* Currently running simulations to check magnitude of changes
 +
 
 +
|-valign="top"
 +
|Improve carbon & nitrogen conservation in reactions
 +
|Kelvin Bates (Harvard)
 
|Chemistry
 
|Chemistry
 
|
 
|
Line 233: Line 281:
  
 
|-valign="top"
 
|-valign="top"
|Global continental chlorine (pCl and HCl) emissions
+
|Geologic emission of ethane and propane
|Pengfei Liu (GTech)
+
|Matthew Rowlinson and Mat Evans(York)
|Emissions
+
|
+
 
+
|-valign="top"
+
|Geologic short-chain alkanes
+
|Matthew R. (York)
+
 
|Emissions
 
|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"
 
|-valign="top"
 
|New version of CEDS at 0.1 deg
 
|New version of CEDS at 0.1 deg
 
|Emma Knowland (NASA)
 
|Emma Knowland (NASA)
|Emissions
 
|
 
 
|-valign="top"
 
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
 
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
 
 
|Emissions
 
|Emissions
 
|
 
|
Line 269: Line 306:
 
|
 
|
 
* Need permission to distribute data
 
* Need permission to distribute data
 
|-valign="top"
 
|[https://pubs.rsc.org/en/content/articlehtml/2022/em/d2em00032f Improvements in modelled Hg0 dry deposition to land]
 
|Ari Feinberg (MIT)<br>Noelle Selin (MIT)<br>Thandolwethu Dlamini (MIT)<br>Martin Jiskra (UBasel)<br>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.
 
 
|-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"
 
|-valign-"top"
Line 295: Line 318:
 
|Hg simulation<br>WRF-GC
 
|Hg simulation<br>WRF-GC
 
|
 
|
 
|-valign-"top"
 
|Updated Hg benchmarking scripts in python
 
|Ari Feinberg (MIT)
 
|Benchmarking
 
|
 
* Ideally to be incorporated in GCPy
 
  
 
|-valign="top"
 
|-valign="top"
Line 309: Line 325:
 
|
 
|
 
* Should be option, not default
 
* Should be option, not default
 
|-valign="top"
 
|Ecophysiology module (JULES)
 
|Amos Tai (CUHK)
 
|
 
|
 
  
 
|-valign="top"
 
|-valign="top"
Line 321: Line 331:
 
|Dry deposition
 
|Dry deposition
 
|
 
|
 
 
|}
 
|}
  
Line 351: Line 360:
 
|MBO
 
|MBO
 
|Michael Vermeuel (UMN)
 
|Michael Vermeuel (UMN)
|Chemistry
 
|
 
 
|-valign="top"
 
|Nitrate photolysis
 
|Viral Shah (NASA GMAO)
 
 
|Chemistry
 
|Chemistry
 
|
 
|
Line 365: Line 368:
 
|Science
 
|Science
 
|
 
|
*[https://github.com/geoschem/geos-chem/issues/1094 geoschem/geos-chem #1094]
 
  
 
|-valign="top"
 
|-valign="top"
Line 405: Line 407:
 
|-valign="top"
 
|-valign="top"
 
|Brown carbon chemsitry
 
|Brown carbon chemsitry
|Jingqiu Mao (U. Alaska)<vr>Xuan Wang (CUHK)
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
 
|Aerosols
 
|Aerosols
 
|
 
|
Line 414: Line 416:
 
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
 
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
 
|Convection
 
|Convection
|
 
 
|-valign="top"
 
|HTAPv3 at 0.1 deg
 
|Dandan Zhang (WashU)
 
|Emissions
 
 
|
 
|
  
Line 438: Line 434:
 
|Jintai Lin (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).
  
 
|-valign="top"
 
|-valign="top"
 
|Updated biomass burning emission factors and species
 
|Updated biomass burning emission factors and species
|Jess Haskins (Utah)
+
|Tess Carter (MIT)
 
|Emissions
 
|Emissions
 
|
 
|
Line 448: Line 444:
 
|-valign="top"
 
|-valign="top"
 
|Updated offline sea salt emissions
 
|Updated offline sea salt emissions
|Hongjian Weng (PKU)
+
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
|Emissions
+
|
+
 
+
|-valign="top"
+
|New soil NOx parameterization
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. owa)
+
 
|Emissions
 
|Emissions
 
|
 
|
Line 471: Line 461:
 
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
 
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
 
*Needs to be updated to a more recent GEOS-Chem version
 
*Needs to be updated to a more recent GEOS-Chem version
 
|-valign="top"
 
|Python code for processing satellite output to produce column fields using averaging kernels
 
|Hannah Nesser (Harvard)<br>Elise Penn (Harvard)
 
|Post-processing
 
|
 
 
|-valign="top"
 
|Derived products from a shapefile database for oil and gas infrastructure in North America
 
|Lee Murray (Rochester)
 
|Post-processing
 
|
 
  
 
|-valign="top"
 
|-valign="top"
Line 507: Line 485:
 
|Interfacing with ESMs
 
|Interfacing with ESMs
 
|
 
|
 
|-valign="top"
 
|Tagged O3 simulation in GCHP
 
|Xingpei Yu (PKU)
 
|TagO3 simulation
 
|
 
*[https://github.com/geoschem/geos-chem/pull/1167 geoschem/geos-chem PR #1167]
 
  
 
|-valign="top"
 
|-valign="top"
 
|Assess memory leak in GCHP
 
|Assess memory leak in GCHP
|Liam Bindle (WashU)<br>Killian Murphy (York)
+
|Killian Murphy (York)
 
|Model performance
 
|Model performance
 
|
 
|
Line 553: Line 524:
 
|-valign="top"
 
|-valign="top"
 
|Improve run directory templating and creation with init_rd.sh and shared directories
 
|Improve run directory templating and creation with init_rd.sh and shared directories
|Liam Bindle (WashU)
+
|Jourdan He (WashU)
 
|Run directories
 
|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
 
 
|
 
|
  
Line 573: Line 532:
 
|GCST?
 
|GCST?
 
|Documentation
 
|Documentation
 +
|
 +
 +
|-valign="top"<
 +
|Upgrade Fast-JX to Cloud-J
 +
|Lizzie Lundgren (Harvard)
 +
|Structural
 
|
 
|
  
Line 712: Line 677:
 
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
 
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
 
|Emissions<br>CH4 simulation
 
|Emissions<br>CH4 simulation
|
 
 
|-valign="top"
 
|CHEEREIO EnKF
 
|Drew Pendergrass (Harvard)
 
|Adjoint capabilities
 
 
|
 
|
  
Line 804: Line 763:
 
!width="100px"|Model scope
 
!width="100px"|Model scope
 
!width="420px"|Notes and References
 
!width="420px"|Notes and References
 +
 +
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
 +
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
 +
|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"
Line 899: Line 867:
 
|Chris Holmes (FSU)
 
|Chris Holmes (FSU)
 
|Dry deposition
 
|Dry deposition
 +
|
  
 
|-valign="top"
 
|-valign="top"

Latest revision as of 18:30, 2 December 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
None 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
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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