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

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On this page we list the current priorities for GEOS-Chem development.  This list was compiled by the user Working Groups at the last [http://acmg.seas.harvard.edu/geos/meetings/2017/index.html International GEOS-Chem Meeting (IGC8)] in May 2017 and will be continuously updated based on code readiness and input from the Working Groups and the Steering Committee.
+
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
  
We also invite you to view our [https://trello.com/board/geos-chem-support-team/4fe36668fc79a1d3540ba80b GEOS-Chem Support Team project management board on Trello.com], which shows the current GCST workflow.
+
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]].
  
== List of priorities as of May 2017 ==
+
== Release schedule ==
  
The items listed below are in different stages of readiness and will be included in future versions of the model.
+
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.  
  
=== Awaiting release ===
+
== Merged and awaiting release ==
  
Items awaiting release will be part of the next version release of GEOS-Chem and are actively being incorporated into the standard model and benchmarked. More information on those items can be obtained on the [[GEOS-Chem v11-02]] wiki page.
+
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="400px"|Item
+
!width="200px"|Patch version in development
!width="300px"|Author(s)
+
!width="200px"|Major version in development
!width="400px"|Status
+
  
 
|-valign="top"
 
|-valign="top"
|[[Updates_in_JPL_Publication_15-10|Updating chemistry rate constants based on ''JPL Publication 15-10'']]
+
|align="center"| -
|Barron Henderson (U. Florida)<br>Mat Evans (U. York)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|align="center"|'''[[GEOS-Chem 14.0.0]]'''
|
+
*Included in [[GEOS-Chem v11-02#v11-02a|v11-02a]] (Approved 12 May 2017)
+
  
|-valign="top"
+
|}
|[[PAN|PAN updates ]], including:
+
*Updates to emissions, deposition, species, chemistry
+
*Ocean+biogenic ALD2 emissions from Millet al. [2010]
+
|Emily Fischer (CSU)
+
|
+
*Included in [[GEOS-Chem v11-02#v11-02a|v11-02a]] (Approved 12 May 2017)
+
  
|-valign="top"
+
== Feature integration in progress ==
|[[EPA/NEI11_North_American_emissions#Monthly_mean_emissions|Monthly mean NEI2011 emissions]]
+
|[[GCST]]<br>Katie Travis (Harvard)
+
|
+
*Included in [[GEOS-Chem v11-02#v11-02a|v11-02a]] (Approved 12 May 2017)
+
  
|-valign="top"
+
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.
|Enhance default GEOS-Chem simple SOA
+
|Sal Farina (Colorado State)<br>Aerosol Working Group Chairs
+
|
+
*Included in [[GEOS-Chem v11-02#v11-02c|v11-02c]] (Approved 21 Sep 2017)
+
  
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
|Updates to isoprene chemistry, includes:
+
|-bgcolor="#CCCCCC"
*Fast photolysis of carbonyl nitrates
+
!width="200px"|Feature
*Aerosol uptake of organic nitrates
+
!width="200px"|Contributor(s)
*Updated organic deposition
+
!width="100px"|Model scope
*Remove dependence of species drydep on HNO3 drydep
+
!width="100px"|Ease of implementation
|Jenny Fisher (U. Wollongong)<br>Elo&iuml;se Marais (Harvard)<br>Katie Travis (Harvard)<br>Kelvin Bates (Caltech)<br>Rebecca Schwantes(Caltech)
+
!width="300px"|Notes and References
|
+
*Included in [[GEOS-Chem v11-02#v11-02c|v11-02c]] (Approved 21 Sep 2017)
+
  
|-valign="top"
 
|[http://acmg.seas.harvard.edu/publications/2016/Marais_SEUS_isopSOA_ACP_2016.pdf Add aqueous isoprene uptake to SOA scheme]
 
|Eloise Marais (Harvard)
 
|
 
*Included in [[GEOS-Chem v11-02#v11-02c|v11-02c]] (Approved 21 Sep 2017)
 
  
 
|-valign="top"
 
|-valign="top"
|[[Chemistry_Issues#Fixes_for_carbon_creating_reactions|Carbon balance (fix C creation)]]
+
|TOMAS in GCHP
|Sarah Safieddine (MIT)
+
|Betty Croft (WashU)
 +
|Aerosols
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02c|v11-02c]] (Approved 21 Sep 2017)
+
*[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"
|[http://www.atmos-chem-phys.net/16/12239/2016/ Halogen chemistry updates]
+
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option) / KPP 3.0.0
|Tom&aacute;s Sherwen (York)<br>Johan Schmidt (Harvard)<br>Seb Eastham (MIT)<br>Lei Zhu (Harvard)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Mike Long (Harvard) <br> Haipeng Lin (Harvard) <br> Bob Yantosca (GCST) <br> Lu Shen (PKU)
 +
|Chemistry
 +
|Complicated
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02d|v11-02d]] (Approved 12 Feb 2018)
+
*Lin, H., M.S. Long, R. Sander, R.M. Yantosca, L.A. Estrada, L. Shen, and D.J. Jacob, An adaptive auto-reduction solver for speeding up integration of chemical kinetics in atmospheric chemistry models: implementation and evaluation in the Kinetic Pre-Processor (KPP) version 3.0.0, submitted to JAMES,  https://doi.org/10.31223/X5505V, 2022.
 
+
 
|-valign="top"
 
|-valign="top"
|[http://onlinelibrary.wiley.com/doi/10.1002/2017GL073812/abstract Sulfur oxidation by reactive halogens]
+
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation via KPP]
|Qianjie Chen (UW)
+
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)<br>Mike Long (Harvard)
 +
|Specialty simulation
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02d|v11-02d]] (Approved 12 Feb 2018)
+
*[https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
  
 
|-valign="top"
 
|-valign="top"
|[[Aerosol_optical_properties#Add_BC_absorption_enhancement_factor|Update density of BC to 1.8 and add absorption enhancement factor in input.geos]]
+
|RO2 diagnostic
|Xuan Wang (MIT)
+
|Melissa Sulprizio (Harvard)
 +
|Diagnostics
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02e|v11-02e]] (Approved 24 Mar 2018)
 
  
 
|-valign="top"
 
|-valign="top"
|[[NOx-Ox-HC-aerosol#Monthly mean surface distributions|Monthly mean surface methane distributions]]
+
|[https://github.com/geoschem/geos-chem/issues/770 Output satellite diagnostics as NetCDF]
|Lee Murray (Rochester)
+
|Eloise Marais (UCL)  
 +
|Diagnostics
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02e|v11-02e]] (Approved 24 Mar 2018)
+
*See [https://github.com/geoschem/geos-chem/pull/1134 geoschem/geos-chem #1134]
  
 
|-valign="top"
 
|-valign="top"
|[[UCX_chemistry_mechanism#v11-02|Remove initial stratospheric 2D mixing ratio option]]
+
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
|Seb Eastham (Harvard)
+
|Melissa Sulprizio (Harvard)
 +
|Emissions
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02e|v11-02e]] (Approved 24 Mar 2018)
 
  
 
|-valign="top"
 
|-valign="top"
|[[UCX_chemistry_mechanism#UCX_stratospheric_water_boundary_condition_update|UCX stratospheric water boundary condition update]]
+
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx]
|Chris Holmes (UC Irvine)<br>Seb Eastham (Harvard)
+
|Lee Murray (Rochester)
 +
|Emissions
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02e|v11-02e]] (Approved 24 Mar 2018)
 
  
 
|-valign="top"
 
|-valign="top"
|[[Stratospheric_chemistry#Prod.2Floss_rates_from_UCX|Use monthly mean stratospheric prod/loss rates from UCX simulation for all species]]
+
|[https://github.com/geoschem/geos-chem/discussions/1022 Add new species concentration diagnostic in units of molec/cm3]
|[[GCST]]
+
|Haipeng Lin (Harvard)
 +
|Diagnostics
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02e|v11-02e]] (Approved 24 Mar 2018)
+
*See [https://github.com/geoschem/geos-chem/pull/1264 geoschem/geos-chem PR #1264]
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Metal_catalyzed_oxidation_of_SO2|Metal catalyzed oxidation of SO2]] (as a switch)
+
|Identify and remove memory leaks and similar issues
|Viral Shah (UW)<br>Becky Alexander (UW)
+
|Bob Yantosca (Harvard)
 +
|Structural
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02e|v11-02e]] (Approved 24 Mar 2018)
+
*See [https://github.com/geoschem/geos-chem/pull/1353 github.com/geos-chem PR #1353]
  
 
|-valign="top"
 
|-valign="top"
|[[Particulate_matter_in_GEOS-Chem#Option_to_include_spatially_and_seasonally_varying_OM.2FOC|Spatially varying OM/OC]]
+
|Update transport tracer simulation for consistency with the tracer gridded component in GEOS
|Sajeev Philip (Dalhousie/NASA Ames)
+
|Melissa Sulprizio (Harvard)
 +
|TransportTracer simulation
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02e|v11-02e]] (Approved 24 Mar 2018)
 
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem HP|Source code updates for high performance option (GCHP)]]
+
|Bug fix for GFAS in GCHP
|Seb Eastham (Harvard)<br>Lizzie Lundgren (Harvard)<br>Mike Long (Harvard)<br>Jiawei Zhuang (Harvard)<br>Bob Yantosca (Harvard)
+
|Lizzie Lundgren (Harvard)
 +
|GCHP
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02b|v11-02b]] (Approved 16 Jun 2017)
 
  
 
|-valign="top"
 
|-valign="top"
|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#Global_0.25x0.25_MEGAN_input_and_MODIS_LAI|Use global 0.25x0.25 files for MEGAN input and MODIS LAI]]
+
|Use pointers to internal state for species arrays in GCHP/GEOS
|Jenny Fisher (U. Wollongong)<br>Eloise Marais (U. Birmingham)<br>Dylan Millet (UMN)
+
|Lizzie Lundgren (Harvard)
 +
|GCHP/GEOS
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02f|v11-02f]]
 
  
 
|-valign="top"
 
|-valign="top"
|[[Implementation_of_HEMCO_in_GEOS-Chem#Features_added_in_v11-02|Update HEMCO from v2.1.001 to v2.1.005]]
+
|[https://github.com/geoschem/geos-chem/issues/1274 Revision to a rate constant for the C2H4 scheme]
*HEMCO v2.1.003 requires updated MODIS LAI data
+
|Kelvin Bates (Harvard)
|Christoph Keller (NASA GMAO)
+
|Chemistry
 +
|Easy
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02f|v11-02f]]
 
  
 
|-valign="top"
 
|-valign="top"
|[http://www.globalchange.umd.edu/ceds/ CEDS global anthropogenic emissions (1950-2014)]
+
|[https://github.com/geoschem/geos-chem/issues/1298 Fix product in HOBr/Cl + S(IV) reactions]
*This inventory will be the default global anthropogenic emissions inventory
+
|Xuan Wang (CUHK)
|Lu Shen (Harvard)<br>Melissa Sulprizio (Harvard)
+
|Chemistry
 +
|Easy
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02f|v11-02f]]
 
  
 
|-valign="top"
 
|-valign="top"
|[[EDGAR_v4.3_anthropogenic_emissions|EDGAR v4.3.1 emissions]]
+
|[https://github.com/geoschem/geos-chem/issues/1235 Add MO2 + NO3 reaction]
*This inventory will be included as an option
+
|Kelvin Bates (Harvard)
|Chi Li (Dalhousie)
+
|Chemistry
 +
|Easy
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02f|v11-02f]]
 
  
|-valign="top"
+
|}
|[[CAC_anthropogenic_emissions#Historical_Canadian_emissions|Historical Canadian emissions]]
+
|Chi Li (Dalhousie)
+
|
+
*Included in [[GEOS-Chem v11-02#v11-02f|v11-02f]]
+
  
|-valign="top"
+
== Delivered and in the queue ==
|[https://www2.acom.ucar.edu/modeling/dice-africa Inefficient combustion emissions in Africa (DICE-Africa inventory)]
+
|Eloise Marais (U. Birmingham)<br>Christine Wiedinmyer (NCAR)
+
|
+
*Included in [[GEOS-Chem v11-02#v11-02f|v11-02f]]
+
  
|-valign="top"
+
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.
|Trash burning emissions
+
|Eloise Marais (U. Birmingham)<br>Christine Wiedinmyer (NCAR)
+
|
+
*Included in [[GEOS-Chem v11-02#v11-02f|v11-02f]]
+
  
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
|Ammonia emissions from Arctic seabirds
+
|-bgcolor="#CCCCCC"
|Betty Croft (Dalhousie)
+
!width="200px"|Feature
|
+
!width="200px"|Contributor(s)
*Included in [[GEOS-Chem v11-02#v11-02f|v11-02f]]
+
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[[CH4_simulation#Updated_CH4_simulation_in_v11-02_and_later|Updated CH4 simulation]]
+
|[https://doi.org/10.34894/SZ2KOI AMAP 2015 emissions from GMA2018]
|Bram Maasakkers (Harvard)<br>Melissa Sulprizio (Harvard)
+
|Helene Angot(MIT)<br>Ari Feinberg (MIT)<br>Noelle Selin (MIT)
 +
|Hg simulation
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02f|v11-02f]]
+
* Delivered to GCST (Jul 2022)
  
 
|-valign="top"
 
|-valign="top"
|[[Tagged_CO_simulation#New_tagged_CO_simulation_in_v11-02_and_later|Updated Tagged CO simulation]]
+
|[https://pubs.rsc.org/en/content/articlehtml/2022/em/d2em00032f Improvements in modelled Hg0 dry deposition to land]
|Jenny Fisher (Wollongong)
+
|Ari Feinberg (MIT)<br>Noelle Selin (MIT)<br>Thandolwethu Dlamini (MIT)<br>Martin Jiskra (UBasel)<br>Viral Shah (Harvard)
 +
|Hg simulation
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02f|v11-02f]]
+
* See [https://github.com/geoschem/geos-chem/pull/1367 geoschem/geos-chem PR #1367]
 +
* 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"
 
|-valign="top"
|Updates to Hg chemistry from Horowitz et al. (2017)
+
|[https://github.com/geoschem/geos-chem/issues/1301 HTAPv3 at 0.1 deg]
|Hannah Horowitz (U. Washington)<br>Colin Thackray (Harvard)<br>Rebecca Stern (Harvard)
+
|Dandan Zhang (WashU)
 +
|Emissions
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02f|v11-02f]]
+
*Delivered to GCST (Jul 2022)
 
+
|-valign="top"
+
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3a: Output diagnostics in NetCDF format]]
+
|[[GCST]]
+
|
+
*Included in [[GEOS-Chem v11-02#v11-02f|v11-02f]]
+
  
 
|}
 
|}
  
=== Ready to go in ===
+
== Delivered but not yet prioritized ==
  
==== Slated for inclusion in v11-02 ====
+
Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integration into GEOS-Chem.
  
The following items were prioritized for inclusion in [[GEOS-Chem v11-02]].
+
{| border=1 cellspacing=0 cellpadding=5  
 
+
|-bgcolor="#CCCCCC"
{| border=1 cellspacing=0 cellpadding=5
+
!width="200px"|Feature
|- bgcolor="#cccccc"
+
!width="200px"|Contributor(s)
!width="400px"|Item
+
!width="100px"|Model scope
!width="250px"|Author(s)
+
!width="100px"|Ease of implementation
!width="80px"|Type
+
!width="300px"|Notes and References
!width="250px"|Status
+
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+
  
 
|-valign="top"
 
|-valign="top"
|[[Chemistry_Issues#Script_for_evaluating_carbon_balance|Script for checking N, C, etc. balance in chemistry mechanism]]
+
|Tagged O3 simulation in GCHP
|Barron Henderson (EPA)
+
|Xingpei Yu (PKU)<br>Jourdan He (WashU)
|Software
+
|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"
|[[Chemistry_Issues#Correcting_ozone_from_the_height_of_the_lowest_model_level_to_the_surface|ND49 timeseries diagnostic for correcting ozone from the height of the lowest model level to 10m]]
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
|Structural
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
|Katie Travis (MIT)
+
|Emissions
 +
|Simple
 
|
 
|
*Delivered to GCST (Nov 2017)
+
*Delivered to GCST (Jul 2022)
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Emission updates
+
  
 
|-valign="top"
 
|-valign="top"
|[[Volcanic_SO2_emissions_from_Aerocom#OMI-based_volcanic_emissions|OMI-based volcanic emissions 2005-2012]]
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
|Cui Ge (U. Iowa)<br>Jun Wang (U. Iowa)
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Science
 
|Science
 +
|Simple
 
|
 
|
*Delivered to GCST (Nov 2017)
+
*Delivered to GCST (Feb 2021)
*Need to implement a fix to handle missing data for the last 3 months of 2012. Deferred to v11-03.
+
* [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
  
 
|-valign="top"
 
|-valign="top"
|[[Anthropogenic_emissions#C2H6|Global ethane emissions]]
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
|Zitely Tzompa-Sosa (CSU)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
|Science
+
|Emissions
 +
|Simple
 
|
 
|
*Delivered to GCST (May 2017)
+
*Data files delivered to GCST (July 2021)
 +
*Data are quite large - need to think about storage, compression
  
 
|-valign="top"
 
|-valign="top"
|[https://www2.acom.ucar.edu/modeling/dice-africa Inefficient combustion emissions in Africa (DICE-Africa inventory)]
+
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
|Eloise Marais (U. Birmingham)<br>Christine Wiedinmyer (NCAR)
+
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
|Science
+
|Chemistry
 +
|Medium
 
|
 
|
*Delivered to GCST (Nov 2017)
+
*Delivered to GCST (Jun 2020)
  
|-valign="top"
+
|}
|MEIC emissions over China (2000-2015)
+
|Lu Shen (Harvard)<br>Melissa Sulprizio (Harvard)
+
|Science
+
|
+
*Implementation delayed until MEIC paper is published
+
  
|-valign="top"
+
== Ready but not delivered ==
|[[Mineral_dust_aerosols#Anthropogenic_PM2.5_dust_source_in_GEOS-Chem|Anthropogenic PM2.5 dust source]]
+
|Sajeev Philip (Dalhousie)
+
|Science
+
|
+
*Deferred to v11-03.  Need to fix an "under-the-hood" issue in HEMCO that causes 1200 Tg of dust to be emitted by this update.
+
  
|-valign="top"
+
Features listed in this table are ready but have not been delivered to the GEOS-Chem Support Team.
|[[FINNv1_biomass_burning_emissions|FINN biomass burning emissions for 2014-2016]]
+
|Barron Henderson (US EPA)
+
|Science
+
|
+
*Deferred to v11-03, pending receipt of corrected data files
+
 
+
|-valign="top"
+
|EPA NEI2011 Version EK
+
|Zitely Tzompa-Sosa (CSU)<br>Emily Fischer (CSU)
+
|Science
+
|
+
*Deferred to v11-03; need extra time for validation
+
 
+
|}
+
 
+
==== Defer to v11-03 ====
+
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
!width="500px"|Feature
+
!width="200px"|Feature
!width="200px"|Submitted by
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="150px"|Status
+
!width="300px"|Notes and References
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Transport updates
+
  
 
|-valign="top"
 
|-valign="top"
|[https://www.geosci-model-dev-discuss.net/gmd-2017-125/ GEOS resolution & subgrid convection]
+
|Updating VOC fire emissions and adding lumped furan
|Karen Yu (Harvard)
+
|Colette Heald (MIT)<br>Jessica Haskins (MIT)
|Science
+
|Chemistry
 
|
 
|
*Delivered to GCST (Oct 2017)
+
* Carter, T. S., Heald, C. L., Kroll, J. H., Apel, E. C., Blake, D., Coggon, M., Edtbauer, A., Gkatzelis, G., Hornbrook, R. S., Peischl, J., Pfannerstill, E. Y., Piel, F., Reijrink, N. G., Ringsdorf, A., Warneke, C., Williams, J., Wisthaler, A., and Xu, L.: An Improved Representation of Fire Non-Methane Organic Gases (NMOGs) in Models: Emissions to Reactivity, Atmos. Chem. Phys. Discuss. [preprint], https://doi.org/10.5194/acp-2022-438, in review, 2022.
  
 
|-valign="top"
 
|-valign="top"
|[[Transport_Working_Group#Common_set_of_tracers_in_GEOS-Chem_and_GEOS|Common set of tracers in GEOS-Chem and GEOS]]
+
|Nitrate photolysis
|Transport WG<br>[[GCST]]
+
|Viral Shah (NASA GMAO)
|Benchmarking
+
|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.
|-
+
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+
  
 
|-valign="top"
 
|-valign="top"
|Updated chlorine chemistry
+
|Online H2 chemistry
|Xuan Wang (Harvard)
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+
|Alk4 & R4N2 chemistry
|Sebastian Eastham (MIT)
+
|Jared Brewer (Harvard)
|Science
+
|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.
|-
+
!colspan="4" bgcolor="#CCFFFF"|Emissions updates
+
  
 
|-valign="top"
 
|-valign="top"
|Grid-independent emissions, including:
+
|Organic acids (RCOOH)
*Lightning NOx emissions (3-hourly)
+
|Katie Travis (NASA)
*Dust emissions (hourly)
+
|Chemistry
*Biogenic and sea salt emissions (hourly)
+
|Randall Martin (Dalhousie)<br>Lee Murray (Rochester)<br>David Ridley (MIT)<br>Jintai Lin (PKU)
+
|Science
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|EPA-derived BC/OA emissions over US (1990-2012)
+
|Update reactions with new JPL & IUPAC recommendations
|David Ridley (MIT)<br>Chi Li (Dalhousie)
+
|Kelvin Bates (Harvard)
|Science
+
|Chemistry
 
|
 
|
*Need to coordinate between Ridley and Li versions
+
* Currently running simulations to check magnitude of changes
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|Improve carbon & nitrogen conservation in reactions
|Fabien Paulot (NOAA/GFDL)
+
|Kelvin Bates (Harvard)
|Science
+
|Chemistry
 
|
 
|
*Data files delivered to GCST (Jan 2016)
 
*Needs to be implemented via HEMCO
 
  
 
|-valign="top"
 
|-valign="top"
|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
+
|Blowing snow sea salt in TOMAS
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 
|
 
|
*Delivered to GCST (Nov 2017)
 
*Implemented in v9-01-01
 
*Needs to be added as a HEMCO extension
 
  
 
|-valign="top"
 
|-valign="top"
|[[MASAGE_NH3_inventory|MASAGE inventory in HEMCO as default]]
+
|Geologic emission of ethane and propane
|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
+
|Matthew Rowlinson and Mat Evans(York)
|Science
+
|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"
|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
+
|New version of CEDS at 0.1 deg
|Amos Tai (CUHK)
+
|Emma Knowland (NASA)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Radon emission update
+
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
|Bo Zhang (NIA/NASA Langley)
+
|Shixian Zhai (Harvard)
|Science
+
|Emissions
 
|
 
|
*Delivered to GCST (Nov 2017)
+
* Need permission from Qiang Zhang (Tsinghua U.) to distribute data
*Implementation pending paper submission
+
  
 
|-valign="top"
 
|-valign="top"
|GFAS biomass burning emissions
+
|KORUS-AQ emissions for East Asia
|Mat Evans (York)
+
|Katie Travis (NASA)
|Science
+
|Emissions
 
|
 
|
 +
* Need permission to distribute data
  
|-
+
|-valign-"top"
!colspan="4" bgcolor="#CCFFFF"|Deposition/surface updates
+
|[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"
+
|-valign-"top"
|Wet scavenging in mixed-phase clouds
+
|WRF-GC Hg simulation
|Bo Zhang (NIA/NASA Langley)
+
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
|Science
+
|Hg simulation<br>WRF-GC
 
|
 
|
*Delivered to GCST (Nov 2017)
 
*Only applied/tested for Pb
 
*Implementation pending paper submission
 
  
 
|-valign="top"
 
|-valign="top"
|Harmonizing Henry's Law coefficients across wet and dry deposition
+
|Updated HgII gas-partical partitioning
|[[GCST]]
+
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
|Science
+
|Hg simulation
 
|
 
|
 +
* Should be option, not default
  
 
|-valign="top"
 
|-valign="top"
|[[Aerosols_Working_Group#Sedimentation_of_stratospheric_aerosols|Sedimentation of stratospheric aerosols]]
+
|Dry deposition to F90 (readability)
|Sebastian Eastham (Harvard)
+
|Chris Holmes (FSU)
|Science
+
|Dry deposition
 
|
 
|
 +
|}
  
|-
+
== Almost there (< 6 months) ==
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+
  
|-valign="top"
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
|Sea salt aerosol alkalinity
+
|Qianjie Chen (UW)<br>Becky Alexander (UW)<br>Xuan Wang (Harvard)
+
|Science
+
|
+
*UW version delivered to GCST (Nov 2017)
+
  
|-valign="top"
+
{|border=1 cellspacing=0 cellpadding=5
|VBS SOA option
+
|- bgcolor="#cccccc"
|Rokjin Park (SNU)
+
!width="200px"|Feature
|Science
+
!width="200px"|Contributor(s)
|
+
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
|-
 
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
 
  
 
|-valign="top"
 
|-valign="top"
|Oxidant fields from v10 for 2006-2012
+
|DMS Chemistry
*3D chemical source for CO2, CO
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
*OH for tagged CO & CH4
+
|Chemistry
|Dylan Jones (UofT)
+
|Science
+
 
|
 
|
*Will make data files available on ftp site
 
  
 
|-valign="top"
 
|-valign="top"
|Year 2010 ocean Hg boundary conditions from ocean model
+
|PPN+hv, PPN+OH
|Hannah Horowitz (Harvard)
+
|Robert Ryan (UCL)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Historical products emissions from Zhang et al. (2016), should become default
+
|MBO
|Colin Thackray (Harvard)
+
|Michael Vermeuel (UMN)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|AMAP/UNEP 2035 for Hg simulation
+
|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]
|Helene Angot (MIT)
+
|Seb Eastham (MIT)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Africa nested-grid for GEOS-FP and MERRA-2
+
|Re-binning of off-line sea salt and dust for use in TOMAS
|Eloise Marais (U. Birmingham)
+
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 
|
 
|
*Delivered to GCST (Dec 2017)
 
  
 
|-valign="top"
 
|-valign="top"
|West Africa nested-grid for GEOS-FP
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
|Mat Evans (York)<br>Eleanor Morris (York)
+
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
+
|ML algorithms for bulk aerosols
|Becky Alexander (UW)
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Arsenic simulation
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
|Shiliang Wu (MT)
+
|Shixian Zhai (Harvard)
|Science
+
|Aerosols
 
|
 
|
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Structural updates
 
  
 
|-valign="top"
 
|-valign="top"
|Updated flux diagnostics
+
|Updates to Hodzic SOA scheme
|Chris Holmes (Florida State)<br>[[GCST]]
+
|Jared Brewer (Harvard)
|Structural/<br>Benchmarking
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Additional modifications for [[FlexChem]], including:
+
|Automated reduction in isoprene scheme
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Dan Westervelt (Lamont-Doherty)
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
|Aerosols
|[[GCST]]
+
|Structural
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Benchmark of stratospheric simulation
+
|Brown carbon chemsitry
|Dylan Jones (U. Toronto)
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
|Benchmarking
+
|Aerosols
 
|
 
|
*1-yr benchmarks for GEOS-Chem v11-01d and later include comparisons with OSIRIS O3
+
 
*Waiting on OSIRIS NO2 data
+
*Waiting on comparisons with ACE-FTS data
+
  
 
|-valign="top"
 
|-valign="top"
|Add total column O3 to benchmarks
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
|Chris Holmes (FSU)<br>[[GCST]]
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
|Benchmarking
+
|Convection
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem_species_units|Uniformity of units]]
+
|Update surface methane boundary condition using NOAA flask data
|[[GCST]]
+
|Lee Murray (Rochester)
|Structural
+
|Input data
 
|
 
|
*Phase 2 (unit uniformity throughout chemistry) to be implemented after Flexchem
 
*Phase 3 (unit uniformity in some specialty simulations) will be implemented in pieces with input from 3rd party developers
 
*Phase 4 (removal of area and area-dependent State_Met variables) will be ongoing
 
  
 
|-valign="top"
 
|-valign="top"
|ObsPack diagnostic as netCDF replacement for planeflight_mod.F
+
|Provide recommended rather than hard-coded scaling factors for online emissions
|Andy Jacobson (NOAA/ESRL)
+
|Melissa Sulprizio (Harvard)
|Structural
+
|Emissions
 
|
 
|
*Delivered to GCST (May 2017)
 
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3b: Updates to eliminate differences between single and multi-segmented GEOS-Chem runs]]
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
|[[GCST]]<br>Christoph Keller
+
|Jintai Lin (PKU)
|Bug fix/Structural
+
|Emissions
|
+
|Horizontal resolution: 5km, temporal resolution: JJA mean (monthly data will be available at a later stage; please contact us).
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
+
  
 
|-valign="top"
 
|-valign="top"
|[[FlexGrid|FlexGrid: Use HEMCO to read met fields and enable nested simulations over any custom domains]]
+
|Updated biomass burning emission factors and species
|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
+
|Tess Carter (MIT)
|Structural
+
|Emissions
 
|
 
|
*Delivered to GCST (Oct 2016)
 
  
 
|-valign="top"
 
|-valign="top"
|[[ISORROPIA_II#Investigating_persistent_noise_observed_in_ISORROPIA_output|Update ISORROPIA from v2.0 to v2.2, in order to remove persistent noise in output]]
+
|Updated offline sea salt emissions
|Seb Eastham (Harvard)
+
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
|Science
+
|Emissions
 
|
 
|
*Delivered to GCST (May 2017)
 
  
 
|-valign="top"
 
|-valign="top"
|Archival of roughness length for temperature z0T
+
|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)
|Met processing
+
|Hg simulation
 
|
 
|
 
|}
 
 
==== Not prioritized for v11-02 ====
 
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="400px"|Item
 
!width="250px"|Author(s)
 
!width="80px"|Type
 
!width="250px"|Status
 
  
 
|-valign="top"
 
|-valign="top"
|Sea salt emission from sea ice
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
|Jiayue Huang (UW)
+
|Sam Silva (MIT)
|Science
+
|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"
|Re-evaluation of SST dependence of sea salt emissions
+
|Gridded EPA (GEPA) version 2 emissions for 2012-2018
|Jiayue Huang (UW)
+
|Bram Maasakkers (SRON)<br>Erin McDuffie (WashU),<br>Melissa Sulprizio (Harvard)
|Science
+
|Emissions<br>CH4 simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#Discussion_of_LAI_Data_Sources|Update MODIS LAI fields through 2015]]
+
|Reduce dimension of analytical inversion
|Barron Henderson (UF)
+
|Hannah Nesser (Harvard)
|Science
+
|Adjoint capability
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Lightning NOx chemistry parameterization
+
|Retire all BPCH diagnostics
|Alicia Gressent (MIT)
+
|Bob Yantosca (Harvard)
|Science
+
|Diagnostics
 
|
 
|
 
|}
 
 
=== Almost there (< 6 months) ===
 
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="400px"|Item
 
!width="250px"|Author(s)
 
!width="80px"|Type
 
!width="250px"|Status
 
  
 
|-valign="top"
 
|-valign="top"
|Aromatics and dicarbonyl chemistry
+
|GEOS-Chem in CESM 2.3
|William Porter (MIT)<br>Tzung-May Fu (PKU)
+
|Lizzie Lundgren (Harvard)
|Science
+
|Interfacing with ESMs
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Diagnostic for species lifetime
+
|Assess memory leak in GCHP
|[[GCST]]
+
|Killian Murphy (York)
|Science
+
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Document chemical mechanism in KPP file
+
|Point to internal state for species mixing ratios in GCHP and GEOS
|Mat Evans (York)
+
|Lizzie Lundgren (Harvard)<br>Christoph Keller (NASA)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Carbon bottom up fluxes: anthro, ocean, land
+
|Assess precision in GCHP internal state - use R4 for some?
|Kevin Bowman (JPL)
+
|Lizzie Lundgren (Harvard)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|GISS-GC (ICECAP/GCAP2) in standard model + benchmark
+
|Hybrid MPI-OpenMP in GCHP
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
|Science
+
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|CESM-GC offline coupling in standard model + benchmark
+
|Convert HEMCO input files to YAML
|Rokjin Park (SNU)<br>Daniel Rothenberg (MIT)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|CESM-GC GCHP
+
|Allow easy disabling of HEMCO emissions for testing
|Daniel Rothenberg (MIT)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Injection height for fire emissions
+
|Improve run directory templating and creation with init_rd.sh and shared directories
|Juliet Zhu (CSU)<br>Emily Fischer (CSU)
+
|Jourdan He (WashU)
|Science
+
|Run directories
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Diurnal variability for NH3
+
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
|Henze group
+
|GCST?
|Science
+
|Documentation
 
|
 
|
  
|-valign="top"
+
|-valign="top"<
|OH + NO2 rate update
+
|Upgrade Fast-JX to Cloud-J
|Barron Henderson (EPA)
+
|Lizzie Lundgren (Harvard)
|Science
+
|Structural
 
|
 
|
  
|-valign="top"
+
|}
|N2O5 hydrolysis updates
+
|Viral Shah (UW)
+
|Science
+
|
+
  
|-valign="top"
+
== Over the horizon (6-12 months) ==
|Land cover module: Harmonized biosphere-atmosphere exchange and implementing CLM or manual land cover change experiments
+
|Jeff Geddes (BU)
+
|Science
+
|
+
  
|-valign="top"
+
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.
|H2 chemistry in UCX
+
|Chris Holmes (FSU)
+
|Science
+
|
+
  
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
|Uptake of HNO3 onto coarse-mode sea salt
+
|- bgcolor="#cccccc"
|Prasad Kasibhatla (Duke)
+
!width="200px"|Feature
|Science
+
!width="200px"|Contributor(s)
|
+
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Photolysis of NITs
+
|Snow / Icy Bromine
|Prasad Kasibhatla (Duke)
+
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Monoterpene oxidation scheme
|Colin Thackray (Harvard)<br>Carey Friedman (formerly MIT)<br>Helen Amos (formerly Harvard)
+
|Jessica Haskins (MIT)
|Science
+
|Chemistry
 
|
 
|
 
  
 
|-valign="top"
 
|-valign="top"
|New EDGAR sectoral inventory for Hg (1970-2012)
+
|Fire related VOCs including furans
|Amanda Giang (MIT)
+
|Lu Hu (UMT)<br>Lixu Jin (UMT)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc.
+
|Extension of UCX into the mesosphere
|Sarah Safieddine (MIT)<br>GCST
+
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive GISS met fields from RCP scenarios for community
+
|Methane flux ingestion
|Lee Murray (Rochester)
+
|Eloise Marais (UCL)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Online O3-LAI coupling in GEOS-Chem
+
|Parameterized effective radius
|Amos Tai (CUHK)
+
|Haihui Zhu (WashU)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Clean up SOA diagnostics
+
|Dust non-sphericity impacts on surface chem and optical properties
|GCST
+
|Inderjeet Singh (WashU)
|Structural
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Calculation consistency throughout code: surface area, HGF (via species database)
+
|Size-resolved stratospheric aerosol
|GCST
+
|Seb Eastham (MIT)
|Structural
+
|Aerosols
 
|
 
|
 
|}
 
 
=== Over the horizon (6-12 months) ===
 
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="400px"|Item
 
!width="250px"|Author(s)
 
!width="80px"|Type
 
!width="250px"|Status
 
  
 
|-valign="top"
 
|-valign="top"
|GISS-GC GCHP
+
|Extend aerosol settling
|Lee Murray (Rochester)
+
|Eloise Marais (UCL)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dynamic fire modeling/prediction
+
|Stratospheric aerosol APM
|Shiliang Wu (MNT)
+
|Fangqun Yu (SUNY)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Interannually varying ocean model BCs for Hg from ocean model
+
|Plume-in-grid model
|Colin Thackray (Harvard)
+
|Hongwei Sun (Harvard)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|PAH & PFCA simulations
+
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
|Peter Ivatt (York)<br>Mat Evans (York)<br>Noelle Selin (MIT)<br>Colin Thackray (Harvard)
+
|Lee Murray (Rochester)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|CH4 in full chemistry simulation
+
|Seb aircraft emissions beyond recent 2019 update
|Seb Eastham (Harvard)
+
|Seb Eastham (MIT)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Standard future land use maps (PFT, LAI) for RCP/CMIP6 simulations
+
|FRP-based fire emsisions for eastern US at 0.2 deg
|Colette Heald (MIT)<br>Loretta Mickley (Harvard)
+
|Charlie Fite (FSU)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive GISS met fields from CMIP6 scenarios for community
+
|Hg iodine chemistry
|Lee Murray (Rochester)
+
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to cold-temperature deposition
+
|Hg simulation in GCHP
|Lyatt Jaegle (UW)
+
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Simple parameterization for CO2-O3 dependence of stomatal resistance
+
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
|Amos Tai (CUHK)
+
|Yanxu Zhang (Nanjing U.)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|NH3 emissions over China
+
|Dry deposition diagnostics by land cover
|Lin Zhang (PKU)
+
|Holly Nowell (FSU)
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Using GEOS-Chem within GEOS-5
+
|Dry deposition process diagnostics
|Loretta Mickley (Harvard)
+
|Holly Nowell (FSU)
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Carbon cycle outputs in xCO2, xCH4 as a diagnostic
+
|Isotope simulation for CO and CH4 in GCHP
|Beata Bukosa (Wollongong)<br>Dylan Jones (UofT)
+
|Lee Murray (Rochester)
|Science
+
|Carbon simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Seasonal EMEP emissions back to 1980
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
|Mat Evans (York)
+
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
|Science
+
|Emissions<br>CH4 simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to NO2 dry deposition
+
|Separate mixing and emissions
|Brian Boys (Dalhousie)
+
|Bob Yantosca (Harvard)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|APM update and integration with most recent GEOS-Chem version
+
|Modularization of aerosols code for interface with GOCART in GEOS
|Gan Luo (SUNY Albany)
+
|Christoph Keller (GMAO)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Cosmogenic tracer production
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
|Lee Murray (Rochester)
+
|Bob Yantosca (Harvard)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Explore resolution-consistent dust emissions
+
|Improve load balancing in GCHP
*Make high-res concentrations or mass fluxes available offline, implement in met field processing
+
|Seb Eastham (MIT)
|David Ridley (MIT)<br>GCST<br>Nested Model WG
+
|Model performance
|Science
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dust emissions at nested-grid resolutions
+
|Update to MAPL 3 in GCHP, including replacement of ExtData.rc with YAML file
|Yuxuan Wang (U. Houston)<br>Jun Wang (U. Iowa)
+
|Lizzie Lundgren (Harvard)
|Science
+
|Structural
 
|
 
|
*Check for overlap with resolution-consistent dust emissions above
 
  
 
|-valign="top"
 
|-valign="top"
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Update SO2 scavenging in convective updrafts for consistency]]
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
|Duncan Fairlie (NASA/LARC)  
+
|Bob Yantosca (Harvard)
|Science
+
|Model performance
 
|
 
|
 
|}
 
 
=== Longer term (12-24 months)===
 
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="400px"|Item
 
!width="250px"|Author(s)
 
!width="80px"|Type
 
!width="250px"|Status
 
  
 
|-valign="top"
 
|-valign="top"
|GCHP stretched grid
+
|Limit allocation of State_Met to what is needed per simulation
|Jiawei Zhuang (Harvard)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|1/8 degree nested-grid simulations with GEOS-FP
+
|Make frequency of HEMCO restart file configurable
|Nested Model WG
+
|Melissa Sulprizio (Harvard)
|Science
+
|Diagnostics
 
|
 
|
*Wait for more interest
 
  
 
|-valign="top"
 
|-valign="top"
|Embedding GEOS-Chem into CESM
+
|Apply masks/scaling in HEMCO based on input category or flag
|Jean-Francois Lamarque (NCAR)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Adjoint of carbon cycle simulation in GCHP
+
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
|Kevin Bowman (JPL)
+
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Isoprene chemistry v2 (new Caltech update)
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
|Kelvin Bates (Caltech)
+
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Contemporary land cover: developing historical and updated GEOS-Chem land cover maps based on satellite remote sensing
+
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
|Jeff Geddes (BU)
+
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
|Science
+
|Transport
 
|
 
|
  
|-valign="top"
+
|}
|Farquhar-Ball-Barry model to calculate stomatal resistance
+
|Amos Tai (CUHK)<br>Jeff Geddes (BU)
+
|Science
+
|
+
  
|-valign="top"
+
== Longer term (12-24 months)==
|Impacts of chemistry on ecosystem/carbon cycle
+
|Kevin Bowman (JPL)<br>Anthony Bloom (JPL)
+
|Science
+
|
+
  
|-valign="top"
+
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.
|Improved lightning emission scheme
+
|Lee Murray (Rochester)
+
|Science
+
|
+
  
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
|Resolution-independent lightning NOx
+
|- bgcolor="#cccccc"
|Lee Murray (Rochester)
+
!width="200px"|Feature
|Science
+
!width="200px"|Contributor(s)
|
+
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
|-valign="top"
 
|Bidirectional NH3 emissions
 
|Juliet Zhu (CSU)
 
|Science
 
|
 
  
 
|-valign="top"
 
|-valign="top"
|Country-based weekday/weekend variability for EDGAR 4.2
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
|Lee Murray (Rochester)<br>Christoph Keller (Harvard)
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
|Science
+
|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"
|Update keytone photolysis
+
|Updates to Aromatic chemistry
|Jared Brewer (CSU)<br>Emily Fischer (CSU)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Small alkyl nitrates
+
|Nitrate photolysis
|Jenny Fisher (Wollongong)
+
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|YIBS-GC chemistry-biosphere-fire coupling
+
|In aerosol chemistry Halogens
|Loretta Mickley (Harvard)<br>Xu Yue (IAP)
+
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Nitrogen-LAI coupling
+
|Benchmark box model of GC Chemistry
|Lin Zhang (PKU)<br>Amos Tai (CUHK)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Implementing humidity/VPD dependence of dry deposition
+
|Alkyl nitrates Alk7, PHAN
|Jennifer Murphy (U. Toronto)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|SO2 wet scavenging
+
|Add stratospheric ozone species to full-chemistry simulations
|Duncan Fairlie (NASA Langley)
+
|Lee Murray (Rochester)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Heterogeneous sulfate production
+
|Perchlorate chemistry
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Yuk Chun Chan (UWAB)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|MOSAIC implementation
+
|Explicit heterogeneous sulfate chemistry
|Sebastian Eastham (Harvard)
+
|Katie Travis (NASA)<br>Becky Alexander (UT)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Particle size climatology
+
|ISORROPIA-lite
|Fangqun Yu (SUNY Albany)
+
|Becky Alexander (UW)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Sea salt/dust size distribution
+
|HOx and ozone "emissions" from lightning as option in model to play with
|David Ridley (MIT)<br>Colette Heald (MIT)
+
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to GTMM
+
|Sea salt aerosol from sea ice leads
|Rebecca Stern (Harvard)
+
|Hannah Horowitz (U. Illinois)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Tracer transport ocean
+
|Drought-stress algorithm
|Chris Holmes (FSU)
+
|Wei Li (U. Houston)
|Science
+
 
|
 
|
 
|-valign="top"
 
|Include Hg in full chemistry simulation
 
|Noelle Selin (MIT)
 
|Science
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Goddard seasonal weather prediction in GCHP
+
|Biomass burning injection height profiles
|Kevin Bowman (JPL)
+
|Inderjeet Singh (WashU)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Climate index diagnostics (drought, etc.)
+
|OCIM integration
|Chemistry-ecosystems-climate WG
+
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
|Structural
+
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Joint CO/CO2/CH4 simulation
+
|Updating landcover products in GEOS-Chem
|Nicholas Deutscher (U. Wollongong)
+
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
|Science
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Carbon coupling: oceans and terrestrial models
+
|Dry deposition physical improvement
 
|Chris Holmes (FSU)
 
|Chris Holmes (FSU)
|Science
+
|Dry deposition
 
|
 
|
*Ocim-pure physical transport, ECCO-Darwin ocean biogeochemistry
 
  
 
|-valign="top"
 
|-valign="top"
|DMS oxidation scheme updating
+
|Extend the IMI system to other trace gases
|Qianjie Chen (UW)<br>Chemistry WG
+
|Lucas Estrada (Harvard)
|Science
+
|Adjoint capabilities
 
|
 
|
 +
  
 
|-valign="top"
 
|-valign="top"
|Limiting NH3 uptake due to OA
+
|TOMAS WRF-GC in regional Thailand simulation
|Rachel Silvern (Harvard)
+
|Win Trivitayanurak (Chulalongkorn U)
|Science
+
|Aerosols
 
|
 
|
  
 
|}
 
|}
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 20:44, 12 May 2017 (UTC)
+
----------------
 +
 
 +
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''

Revision as of 18:24, 22 September 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


TOMAS in GCHP Betty Croft (WashU) Aerosols Simple
Adaptive chemical solver (as option) / KPP 3.0.0 Mike Long (Harvard)
Haipeng Lin (Harvard)
Bob Yantosca (GCST)
Lu Shen (PKU)
Chemistry Complicated
  • Lin, H., M.S. Long, R. Sander, R.M. Yantosca, L.A. Estrada, L. Shen, and D.J. Jacob, An adaptive auto-reduction solver for speeding up integration of chemical kinetics in atmospheric chemistry models: implementation and evaluation in the Kinetic Pre-Processor (KPP) version 3.0.0, submitted to JAMES, https://doi.org/10.31223/X5505V, 2022.
Joint CO2-CO-CH4-OCS simulation via KPP Beata Bukosa (NIWA)
Kevin Bowman (JPL)
Mike Long (Harvard)
Specialty simulation Medium
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
Identify and remove memory leaks and similar issues Bob Yantosca (Harvard) Structural Medium
Update transport tracer simulation for consistency with the tracer gridded component in GEOS Melissa Sulprizio (Harvard) TransportTracer simulation Simple
Bug fix for GFAS in GCHP Lizzie Lundgren (Harvard) GCHP Simple
Use pointers to internal state for species arrays in GCHP/GEOS Lizzie Lundgren (Harvard) GCHP/GEOS Medium
Revision to a rate constant for the C2H4 scheme Kelvin Bates (Harvard) Chemistry Easy
Fix product in HOBr/Cl + S(IV) reactions Xuan Wang (CUHK) Chemistry Easy
Add MO2 + NO3 reaction Kelvin Bates (Harvard) Chemistry Easy

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
AMAP 2015 emissions from GMA2018 Helene Angot(MIT)
Ari Feinberg (MIT)
Noelle Selin (MIT)
Hg simulation Simple
  • Delivered to GCST (Jul 2022)
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 Simple
  • See geoschem/geos-chem PR #1367
  • 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.
HTAPv3 at 0.1 deg Dandan Zhang (WashU) Emissions Simple
  • Delivered to GCST (Jul 2022)

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
Updating VOC fire emissions and adding lumped furan Colette Heald (MIT)
Jessica Haskins (MIT)
Chemistry
  • Carter, T. S., Heald, C. L., Kroll, J. H., Apel, E. C., Blake, D., Coggon, M., Edtbauer, A., Gkatzelis, G., Hornbrook, R. S., Peischl, J., Pfannerstill, E. Y., Piel, F., Reijrink, N. G., Ringsdorf, A., Warneke, C., Williams, J., Wisthaler, A., and Xu, L.: An Improved Representation of Fire Non-Methane Organic Gases (NMOGs) in Models: Emissions to Reactivity, Atmos. Chem. Phys. Discuss. [preprint], https://doi.org/10.5194/acp-2022-438, in review, 2022.
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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