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

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(→‎Slated for inclusion in v11-02)
(→‎Over the horizon (6-12 months))
 
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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.
+
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]].
  
−
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.
+
== Merged and awaiting release ==
  
−
== List of priorities as of May 2017 ==
+
See the links below for items merged and awaiting release.
  
−
The items listed below are in different stages of readiness and will be included in future versions of the model.
+
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="300px"|Mergeable at any time
 +
!width="200px"|Version in development
  
−
=== Awaiting release ===
+
|-valign="top"
 +
|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
 +
|align="center"|'''[[GEOS-Chem 14.4.0]]'''
  
−
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.
+
|}
  
−
{| border=1 cellspacing=0 cellpadding=5
+
== Feature integration in progress ==
−
|- bgcolor="#cccccc"
+
−
!width="400px"|Item
+
−
!width="300px"|Author(s)
+
−
!width="400px"|Status
+
  
−
|- bgcolor="#ccffff"
+
Features listed in this table are actively being integrated into GEOS-Chem by the [https://geoschem.github.io/support-team.html GEOS-Chem Support Team]. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.
−
!colspan="3"|Science updates
+
  
−
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
−
|[[Updates_in_JPL_Publication_15-10|Updating chemistry rate constants based on ''JPL Publication 15-10'']]
+
|-bgcolor="#CCCCCC"
−
|Barron Henderson (U. Florida)<br>Mat Evans (U. York)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
!width="200px"|Feature
−
|
+
!width="200px"|Contributor(s)
−
*Included in [[GEOS-Chem v11-02#v11-02a|v11-02a]] (Approved 12 May 2017)
+
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[[PAN|PAN updates ]], including:
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
−
*Updates to emissions, deposition, species, chemistry
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
−
*Ocean+biogenic ALD2 emissions from Millet al. [2010]
+
|Emissions
−
|Emily Fischer (CSU)
+
|Simple
 
|
 
|
−
*Included in [[GEOS-Chem v11-02#v11-02a|v11-02a]] (Approved 12 May 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[EPA/NEI11_North_American_emissions#Monthly_mean_emissions|Monthly mean NEI2011 emissions]]
+
|[https://github.com/geoschem/geos-chem/issues/1747 Parameterization of SNA and OM dry size]
−
|[[GCST]]<br>Katie Travis (Harvard)
+
|Haihui Zhu (WashU)
 +
|Aerosols
 +
|Medium
 
|
 
|
−
*Included in [[GEOS-Chem v11-02#v11-02a|v11-02a]] (Approved 12 May 2017)
+
*[https://egusphere.copernicus.org/preprints/2022/egusphere-2022-1292/ Zhu et al., EGUsphere, submitted 2023.]
 +
*[https://github.com/geoschem/geos-chem/pull/1902 geos-chem PR #1902]
  
 
|-valign="top"
 
|-valign="top"
−
|Enhance default GEOS-Chem simple SOA
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
−
|Sal Farina (Colorado State)<br>Aerosol Working Group Chairs
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
 +
|Emissions
 +
|Medium
 
|
 
|
−
*Included in [[GEOS-Chem v11-02#v11-02c|v11-02c]] (Approved 21 Sep 2017)
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to isoprene chemistry, includes:
+
|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
−
*Fast photolysis of carbonyl nitrates
+
|Lizzie Lundgren (Harvard)
−
*Aerosol uptake of organic nitrates
+
|GC-Classic
−
*Updated organic deposition
+
|Medium
−
*Remove dependence of species drydep on HNO3 drydep
+
−
|Jenny Fisher (U. Wollongong)<br>Elo&iuml;se Marais (Harvard)<br>Katie Travis (Harvard)<br>Kelvin Bates (Caltech)<br>Rebecca Schwantes(Caltech)
+
 
|
 
|
−
*Included in [[GEOS-Chem v11-02#v11-02c|v11-02c]] (Approved 21 Sep 2017)
+
*[https://github.com/geoschem/HEMCO/issues/18 hemco issue #18]
  
 
|-valign="top"
 
|-valign="top"
−
|[http://acmg.seas.harvard.edu/publications/2016/Marais_SEUS_isopSOA_ACP_2016.pdf Add aqueous isoprene uptake to SOA scheme]
+
|Capture all trop and PBL height changes in budget diagnostics
−
|Eloise Marais (Harvard)
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
 +
|Diagnostics
 +
|Medium
 
|
 
|
−
*Included in [[GEOS-Chem v11-02#v11-02c|v11-02c]] (Approved 21 Sep 2017)
+
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
−
 
+
−
|-valign="top"
+
−
|[[Chemistry_Issues#Fixes_for_carbon_creating_reactions|Carbon balance (fix C creation)]]
+
−
|Sarah Safieddine (MIT)
+
−
|
+
−
*Included in [[GEOS-Chem v11-02#v11-02c|v11-02c]] (Approved 21 Sep 2017)
+
−
 
+
−
|-bgcolor="#ccffff" valign="top"
+
−
!colspan="3"|Structural/programming updates
+
−
 
+
−
|-valign="top"
+
−
|[[GEOS-Chem HP|Source code updates for high performance option (GCHP)]]
+
−
|Seb Eastham (Harvard)<br>Lizzie Lundgren (Harvard)<br>Mike Long (Harvard)<br>Jiawei Zhuang (Harvard)<br>Bob Yantosca (Harvard)
+
−
|
+
−
*Included in [[GEOS-Chem v11-02#v11-02b|v11-02b]] (Approved 16 Jun 2017)
+
  
 
|}
 
|}
  
−
=== Ready to go in ===
+
== Prioritized and in the queue ==
  
−
==== Slated for inclusion in v11-02 ====
+
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
  
−
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="100px"|Delivery status
−
!width="250px"|Status
+
!width="300px"|Notes and References
−
 
+
−
|-
+
−
!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]]
+
|ALK4 & R4N2 chemistry
−
|Barron Henderson (EPA)
+
|Jared Brewer (UMN)
−
|Software
+
|Chemistry
 +
|TBD
 +
|Not delivered
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
 +
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., 2023.]
  
 
|-valign="top"
 
|-valign="top"
−
|[http://www.atmos-chem-phys.net/16/12239/2016/ Halogen chemistry updates]
+
|Mass flux regridding fix in MAPL
−
|Tom&aacute;s Sherwen (York)<br>Johan Schmidt (Harvard)<br>Seb Eastham (MIT)<br>Lei Zhu (Harvard)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Tom Clune (GMAO)<br>Seb Eastham (MIT)
−
|Science
+
|GCHP input regridding
 +
|Medium
 
|
 
|
−
*Delivered to GCST (Jun 2017)
 
−
*Slated for [[GEOS-Chem v11-02#v11-02d|v11-02d]]
 
−
 
−
|-valign="top"
 
−
|[http://onlinelibrary.wiley.com/doi/10.1002/2017GL073812/abstract Sulfur oxidation by reactive halogens]
 
−
|Qianjie Chen (UW)
 
−
|Science
 
 
|
 
|
−
*Delivered to GCST (Oct 2017)
+
*[https://github.com/geoschem/GCHP/issues/377 GCHP Issue #377]
−
*Slated for [[GEOS-Chem v11-02#v11-02d|v11-02d]]
+
*'''Currently on hold, as the submitted update results in zero diff'''
−
*Implement as part of halogen chemistry
+
  
 
|-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]]
+
|New version of CEDS at 0.1 deg
−
|Xuan Wang (MIT)
+
|Dandan Zhang (WashU)
−
|Science
+
|Emissions
 +
|Simple
 +
|Delivered
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jan 2016)
+
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
−
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
*'''Currently on hold while an issue with seasonality in the new CEDS data is being investigated by the authors.'''
  
−
|-valign="top"
+
|}
−
|[[NOx-Ox-HC-aerosol#Monthly mean surface distributions|Monthly mean surface methane distributions]]
+
−
|Lee Murray (NASA GISS/LDEO)
+
−
|Science
+
−
|
+
−
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
  
−
|-valign="top"
+
== Ready to go in ==
−
|[[UCX_chemistry_mechanism#v11-02|Remove initial stratospheric 2D mixing ratio option]]
+
−
|Seb Eastham (Harvard)
+
−
|Science
+
−
|
+
−
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
  
−
|-valign="top"
+
Features listed in this table are ready to go in but have either not been delivered or are not yet prioritized for integration into GEOS-Chem.
−
|[[UCX_chemistry_mechanism#UCX_stratospheric_water_boundary_condition_update|UCX stratospheric water boundary condition update]]
+
−
|Chris Holmes (UC Irvine)<br>Seb Eastham (Harvard)
+
−
|Science
+
−
|
+
−
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
−
*Delivered to GCST (Jan 2017)
+
  
−
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
−
|[[Stratospheric_chemistry#Prod.2Floss_rates_from_UCX|Use monthly mean stratospheric prod/loss rates from UCX simulation for all species]]
+
|-bgcolor="#CCCCCC"
−
|[[GCST]]
+
!width="200px"|Feature
−
|Science
+
!width="200px"|Contributor(s)
−
|
+
!width="100px"|Model scope
−
*Delivered to GCST (Nov 2017)
+
!width="100px"|Delivery status
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Metal_catalyzed_oxidation_of_SO2|Metal catalyzed oxidation of SO2]] (as a switch)
+
|KORUS-AQ emissions for East Asia (as an option)
−
|Viral Shah (UW)<br>Becky Alexander (UW)
+
|Katie Travis (NASA)
−
|Science
+
|Emissions
 +
|Simple
 
|
 
|
−
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Particulate_matter_in_GEOS-Chem#Option_to_include_spatially_and_seasonally_varying_OM.2FOC|Spatially varying OM/OC]]
+
|Geologic emission of ethane and propane
−
|Sajeev Philip (Dalhousie/NASA Ames)
+
|Matthew Rowlinson and Mat Evans(York)
−
|Science
+
|Emissions
 +
|Delivered<br>Jan 2023
 
|
 
|
−
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
*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
−
*Delivered to GCST (May 2017)
+
  
 
|-valign="top"
 
|-valign="top"
−
|[[Chemistry_Issues#Correcting_ozone_from_the_height_of_the_lowest_model_level_to_the_surface|Diagnostic for correcting ozone from the height of the lowest model level to the surface]]
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
−
|Structural
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
−
|Katie Travis (MIT)
+
−
|
+
−
*Delivered to GCST (Nov 2017)
+
−
 
+
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Transport updates
+
−
 
+
−
|-valign="top"
+
−
|GEOS resolution & subgrid convection
+
−
|Karen Yu (Harvard)
+
 
|Science
 
|Science
 +
|Delivered<br>Feb 2021
 
|
 
|
−
*Delivered to GCST (Oct 2017)
+
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
−
 
+
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Emission updates
+
  
 
|-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]]
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
−
|Jenny Fisher (U. Wollongong)<br>Eloise Marais (U. Birmingham)<br>Dylan Millet (UMN)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
−
|Bug fix/Science
+
|Emissions
 +
|Delivered<br>Jul 2021
 
|
 
|
−
*Delivered to GCST (Nov 2017)
+
*Data involves many files- need to think about temporal frequency
  
 
|-valign="top"
 
|-valign="top"
−
|[[Implementation_of_HEMCO_in_GEOS-Chem#Features_added_in_v11-02|Update to HEMCO v2.1.003]] (requires updated MODIS LAI data)
+
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
−
|Christoph Keller (NASA GMAO)
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
−
|Structural
+
|Chemistry
 +
|Delivered<br>June 2023
 
|
 
|
−
*Delivered to GCST (Jul 2017)
+
*[https://acp.copernicus.org/articles/22/12367/2022/acp-22-12367-2022.html Pérez-Peña, M.P. et al., ACP, 2022.]
 +
*Implemented in v12.5, needs to be brought up to current version
  
 
|-valign="top"
 
|-valign="top"
−
|OMI-based Volcanic emissions 2005-2012
+
|DMS Chemistry
−
|Cui Ge (U. Iowa)<br>Jun Wang (U. Iowa)
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
−
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Nov 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[EDGAR_v4.3_anthropogenic_emissions|EDGAR v4.3.1 emissions]]
+
|Organic acids (RCOOH)
−
|Chi Li (Dalhousie)
+
|Katie Travis (NASA)
−
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Nov 2016)
 
  
 
|-valign="top"
 
|-valign="top"
−
|EPA-derived BC/OA emissions over US (1990-2012)
+
|Improve carbon & nitrogen conservation in reactions
−
|David Ridley (MIT)<br>Chi Li (Dalhousie)
+
|Kelvin Bates (Harvard)
−
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
−
*Need to coordinate between Ridley and Li versions
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[CAC_anthropogenic_emissions#Historical_emissions|Historical CAC emissions]]
+
|Blowing snow sea salt in TOMAS
−
|Chi Li (Dalhousie)
+
−
|Science
+
−
|
+
−
*Delivered to GCST (Nov 2016)
+
−
 
+
−
|-valign="top"
+
−
|Ammonia emissions from Arctic seabirds
+
 
|Betty Croft (Dalhousie)
 
|Betty Croft (Dalhousie)
−
|Science
+
|Aerosols
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Nov 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
−
|Fabien Paulot (NOAA/GFDL)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
−
|Science
+
|Hg simulation
 +
|Not delivered
 
|
 
|
−
*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]
+
|WRF-GC Hg simulation
−
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
−
|Science
+
|Hg simulation<br>WRF-GC
 +
|Not delivered
 
|
 
|
−
*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]]
+
|Updated HgII gas-partical partitioning
−
|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
+
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
−
|Science
+
|Hg simulation
 +
|Not delivered
 
|
 
|
 +
*Should be option, not default
  
 
|-valign="top"
 
|-valign="top"
−
|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
+
|Dry deposition to F90 (readability)
−
|Amos Tai (CUHK)
+
|Chris Holmes (FSU)
−
|Science
+
|Dry deposition
 +
|Not delivered
 
|
 
|
  
−
|-valign="top"
+
|}
−
|Radon emission update
+
−
|Bo Zhang (NIA/NASA Langley)
+
−
|Science
+
−
|
+
−
*Delivered to GCST (Nov 2017)
+
  
−
|-valign="top"
+
== Almost there (< 6 months) ==
−
|[http://onlinelibrary.wiley.com/doi/10.1002/2016JD025767/full Global ethane emissions]
+
−
|Zitely Tzompa-Sosa (CSU)
+
−
|Science
+
−
|
+
−
*Delivered to GCST (May 2017)
+
  
−
|-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.
−
|Inefficient combustion emissions in Africa (DICE-Africa inventory)
+
−
|Eloise Marais (U. Birmingham)<br>Christine Wiedinmyer (NCAR)
+
−
|Science
+
−
|
+
  
−
|-valign="top"
+
{|border=1 cellspacing=0 cellpadding=5
−
|Trash burning emissions
+
|- bgcolor="#cccccc"
−
|Eloise Marais (U. Birmingham)<br>Christine Wiedinmyer (NCAR)
+
!width="200px"|Feature
−
|Science
+
!width="200px"|Contributor(s)
−
|
+
!width="100px"|Model scope
−
*Delivered to GCST (Nov 2017)
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|GFAS biomass burning emissions
+
|PPN+hv, PPN+OH
−
|Mat Evans (York)
+
|Robert Ryan (UCL)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|MEIC emissions over China (2000-2015)
+
|MBO
−
|Lu Shen (Harvard)<br>Melissa Sulprizio (Harvard)
+
|Michael Vermeuel (UMN)
−
|Science
+
|Chemistry
 
|
 
|
−
*Delivered to GCST (Nov 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[http://www.globalchange.umd.edu/ceds/ CEDS global anthropogenic emissions (1950-2014)]
+
|Initial conditions for CH4 correcting background and stratospheric biases
−
|Lu Shen (Harvard)<br>Melissa Sulprizio (Harvard)
+
|Todd Mooring (Harvard)
−
|Science
+
|Methane simulation
 
|
 
|
−
*Delivered to GCST (Nov 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|Anthropogenic PM2.5 dust source
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
−
|Sajeev Philip (Dalhousie)
+
|Bob Yantosca (Harvard)
−
|Science
+
|Aerosols<br>Structural
 
|
 
|
−
*Delivered to GCST (Mar 2017)
+
*Ongoing
  
 
|-valign="top"
 
|-valign="top"
−
|[[FINNv1_biomass_burning_emissions|FINN biomass burning emissions for 2015-2016]]
+
|Re-binning of off-line sea salt and dust for use in TOMAS
−
|Barron Henderson (US EPA)
+
|Betty Croft (Dalhousie)
−
|Science
+
|Aerosols
 
|
 
|
−
*Delivered to GCST (Nov 2017)
 
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Deposition/surface updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|Wet scavenging in mixed-phase clouds
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
−
|Bo Zhang (NIA/NASA Langley)
+
|Betty Croft (Dalhousie)
−
|Science
+
|Aerosols
 
|
 
|
−
*Delivered to GCST (Nov 2017)
 
−
*Only applied/tested for Pb
 
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|Oxidant fields from v10 for 2006-2012
+
|ML algorithms for bulk aerosols
−
*3D chemical source for CO2, CO
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
−
*OH for tagged CO & CH4
+
|Aerosols
−
|Dylan Jones (UofT)
+
−
|Science
+
 
|
 
|
−
*Will make data files available on ftp site
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Tagged_CO_simulation#New_tagged_CO_simulation_in_v11-02_and_later|Updated Tagged CO simulation]]
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
−
|Jenny Fisher (Wollongong)
+
|Shixian Zhai (Harvard)
−
|Science
+
|Aerosols
 
|
 
|
−
*Delivered to GCST (Nov 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[CH4_simulation#Updated_CH4_simulation_in_v11-02_and_later|Updated CH4 simulation]]
+
|Updates to Hodzic SOA scheme
−
|Bram Maasakkers (Harvard)<br>Melissa Sulprizio (Harvard)
+
|Jared Brewer (Harvard)
−
|Science
+
|Aerosols
 
|
 
|
−
*Delivered to GCST (Oct 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|India nested-grid for GEOS-5
+
|Automated reduction in isoprene scheme
−
|Sreleekha Chaliyakunnel (U. Minnesota)
+
|Dan Westervelt (Lamont-Doherty)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Africa nested-grid for GEOS-FP and MERRA-2
+
|Brown carbon chemsitry
−
|Eloise Marais (U. Birmingham)
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|West Africa nested-grid for GEOS-FP
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
−
|Mat Evans (York)<br>Eleanor Morris (York)
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
−
|Science
+
|Convection
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
−
|Becky Alexander (UW)
+
|Jintai Lin (PKU)
−
|Science
+
|Emissions
 
|
 
|
 +
*Horizontal resolution: 5km, temporal resolution: JJA mean
 +
*monthly data will be available at a later stage; please contact us
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt aerosol alkalinity
+
|Updated biomass burning emission factors and species
−
|Becky Alexander (UW)
+
|Tess Carter (MIT)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|AMAP/UNEP 2035 for Hg simulation
+
|Updated offline sea salt emissions
−
|Helene Angot (MIT)
+
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Arsenic simulation
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
−
|Shiliang Wu (MT)
+
|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
−
!colspan="4" bgcolor="#CCFFFF"|Structural updates
+
  
 
|-valign="top"
 
|-valign="top"
−
|Updated flux diagnostics
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
−
|Chris Holmes (Florida State)<br>[[GCST]]
+
|Bob Yantosca (Harvard)
−
|Structural/Benchmarking
+
|Model performance
 
|
 
|
 +
*Ongoing (will be done as time allows)
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3a: Output diagnostics in NetCDF format]]
+
|Assess memory leak in GCHP
−
|[[GCST]]
+
|Killian Murphy (York)
−
|Structural
+
|Model performance
 
|
 
|
−
 
+
*NOTE: Most memory leaks in GCHP have been fixed by [https://github.com/geoschem/geos-chem/pull/1353 geoschem/geos-chem PR #1353]. Will wait until MAPL3 to further assess.
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
+
  
 
|-valign="top"
 
|-valign="top"
−
|FlexGrid: Use HEMCO I/O and regridding capabilities to read and regrid met fields
+
|Hybrid MPI-OpenMP in GCHP
−
|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
−
|Structural
+
|Model performance
 
|
 
|
−
*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]]
+
|Improve pressure handling in GCHP advection
−
|Seb Eastham (Harvard)
+
|Seb Eastham (MIT)<br>Yuanjian Zhang (WashU)
−
|Science
+
|GCHP
 
|
 
|
−
*Delivered to GCST (May 2017)
 
−
 
−
|}
 
−
 
−
==== Defer to v11-03 unless ready in time for v11-02 ====
 
−
 
−
{| border=1 cellspacing=0 cellpadding=5
 
−
|- bgcolor="#cccccc"
 
−
!width="400px"|Item
 
−
!width="250px"|Author(s)
 
−
!width="80px"|Type
 
−
!width="250px"|Status
 
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Mercury updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to Hg chemistry from Horowitz et al. (2017)
+
|Use ExtData2G as default GCHP input module
−
|Hannah Horowitz (U. Washington)<br>Colin Thackray (Harvard)<br>Rebecca Stern (Harvard)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
−
|
+
|Will replace ExtData.rc with yaml file
−
 
+
−
|-valign="top"
+
−
|Year 2010 ocean Hg boundary conditions from ocean model
+
−
|Hannah Horowitz (Harvard)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Historical products emissions from Zhang et al. (2016), should become default
+
−
|Colin Thackray (Harvard)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|AMAP/UNEP 2035 for Hg simulation
+
−
|Helene Angot (MIT)
+
−
|Science
+
−
|
+
−
 
+
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Deposition/surface updates
+
−
 
+
−
|-valign="top"
+
−
|Harmonizing Henry's Law coefficients across wet and dry deposition
+
−
|[[GCST]]
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|[[Aerosols_Working_Group#Sedimentation_of_stratospheric_aerosols|Sedimentation of stratospheric aerosols]]
+
−
|Sebastian Eastham (Harvard)
+
−
|Science
+
−
|
+
−
 
+
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+
−
 
+
−
|-valign="top"
+
−
|VBS SOA option
+
−
|Rokjin Park (SNU)
+
−
|Science
+
−
|
+
−
 
+
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Structural updates
+
−
 
+
−
|-valign="top"
+
−
|Additional modifications for [[FlexChem]], including:
+
−
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, UCX, SOA, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
−
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
−
|Mike Long (Harvard)<br>[[GCST]]
+
−
|Structural
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Benchmark of stratospheric simulation
+
−
|Dylan Jones (U. Toronto)
+
−
|Benchmarking
+
−
|
+
−
*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"
+
−
|[[GEOS-Chem_species_units|Uniformity of units]]
+
−
|[[GCST]]
+
−
|Structural
+
−
|
+
−
*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"
+
−
|ObsPack diagnostic as netCDF replacement for planeflight_mod.F
+
−
|Andy Jacobson, NOAA/ESRL
+
−
|Structural
+
−
|
+
−
*Delivered to GCST (May 2017)
+
−
 
+
−
|-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]]
+
−
|[[GCST]]<br>Christoph Keller
+
−
|Bug fix/Structural
+
−
|
+
  
 
|}
 
|}
  
−
==== Not prioritized for v11-02 ====
+
== 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"
+
−
|Sea salt emission from sea ice
+
−
|Jiayue Huang (UW)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Re-evaluation of SST dependence of sea salt emissions
+
−
|Jiayue Huang (UW)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#Discussion_of_LAI_Data_Sources|Update MODIS LAI fields through 2015]]
+
−
|Barron Henderson (UF)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Lightning NOx chemistry parameterization
+
−
|Alicia Gressent (MIT)
+
−
|Science
+
−
|
+
−
 
+
−
|}
+
  
−
=== Almost there (< 6 months) ===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
−
!width="400px"|Item
+
!width="200px"|Feature
−
!width="250px"|Author(s)
+
!width="200px"|Contributor(s)
−
!width="80px"|Type
+
!width="100px"|Model scope
−
!width="250px"|Status
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Aromatics and dicarbonyl chemistry
+
|Snow / Icy Bromine
−
|William Porter (MIT)<br>Tzung-May Fu (PKU)
+
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Diagnostic for species lifetime
+
|Monoterpene oxidation scheme
−
|[[GCST]]
+
|Jessica Haskins (MIT)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Document chemical mechanism in KPP file
+
|Fire related VOCs including furans
−
|Mat Evans (York)
+
|Lu Hu (UMT)<br>Lixu Jin (UMT)
−
|Structural
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Carbon bottom up fluxes: anthro, ocean, land
+
|Extension of UCX into the mesosphere
−
|Kevin Bowman (JPL)
+
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|GISS-GC (ICECAP/GCAP2) in standard model + benchmark
+
|Methane flux ingestion
−
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|Eloise Marais (UCL)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|CESM-GC offline coupling in standard model + benchmark
+
|Dust non-sphericity impacts on surface chem and optical properties
−
|Rokjin Park (SNU)<br>Daniel Rothenberg (MIT)
+
|Inderjeet Singh (WashU)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|CESM-GC GCHP
+
|Size-resolved stratospheric aerosol
−
|Daniel Rothenberg (MIT)
+
|Seb Eastham (MIT)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Injection height for fire emissions
+
|Extend aerosol settling
−
|Juliet Zhu (CSU)<br>Emily Fischer (CSU)
+
|Eloise Marais (UCL)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Diurnal variability for NH3
+
|Stratospheric aerosol APM
−
|Henze group
+
|Fangqun Yu (SUNY)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|EPA NEI2011 Version EK
+
|Plume-in-grid model
−
|Zitely Tzompa-Sosa (CSU)<br>Emily Fischer (CSU)
+
|Hongwei Sun (Harvard)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|OH + NO2 rate update
+
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
−
|Barron Henderson (EPA)
+
|Lee Murray (Rochester)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|N2O5 hydrolysis updates
+
|Seb aircraft emissions beyond recent 2019 update
−
|Viral Shah (UW)
+
|Seb Eastham (MIT)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Land cover module: Harmonized biosphere-atmosphere exchange and implementing CLM or manual land cover change experiments
+
|FRP-based fire emsisions for eastern US at 0.2 deg
−
|Jeff Geddes (BU)
+
|Charlie Fite (FSU)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|H2 chemistry in UCX
+
|Hg iodine chemistry
−
|Chris Holmes (FSU)
+
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Uptake of HNO3 onto coarse-mode sea salt
+
|Hg simulation in GCHP
−
|Prasad Kasibhatla (Duke)
+
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Photolysis of NITs
+
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
−
|Prasad Kasibhatla (Duke)
+
|Yanxu Zhang (Nanjing U.)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Dry deposition diagnostics by land cover
−
|Colin Thackray (Harvard)<br>Carey Friedman (formerly MIT)<br>Helen Amos (formerly Harvard)
+
|Holly Nowell (FSU)
−
|Science
+
|Diagnostics
 
|
 
|
−
 
  
 
|-valign="top"
 
|-valign="top"
−
|New EDGAR sectoral inventory for Hg (1970-2012)
+
|Dry deposition process diagnostics
−
|Amanda Giang (MIT)
+
|Holly Nowell (FSU)
−
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc.
+
|Isotope simulation for CO and CH4 in GCHP
−
|Sarah Safieddine (MIT)<br>GCST
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Archive GISS met fields from RCP scenarios for community
+
 
|Lee Murray (Rochester)
 
|Lee Murray (Rochester)
−
|Science
+
|Carbon simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Online O3-LAI coupling in GEOS-Chem
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
−
|Amos Tai (CUHK)
+
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
−
|Science
+
|Emissions<br>CH4 simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Clean up SOA diagnostics
+
|Modularization of aerosols code for interface with GOCART in GEOS
−
|GCST
+
|Christoph Keller (GMAO)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Calculation consistency throughout code: surface area, HGF (via species database)
+
|Improve load balancing in GCHP
−
|GCST
+
|Seb Eastham (MIT)
−
|Structural
+
|Model performance
 
|
 
|
−
 
−
|}
 
−
 
−
=== 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
+
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
−
|Lee Murray (Rochester)
+
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
−
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Dynamic fire modeling/prediction
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
−
|Shiliang Wu (MNT)
+
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
−
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Interannually varying ocean model BCs for Hg from ocean model
+
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
−
|Colin Thackray (Harvard)
+
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
−
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|PAH & PFCA simulations
+
|MAPL version 3
−
|Peter Ivatt (York)<br>Mat Evans (York)<br>Noelle Selin (MIT)<br>Colin Thackray (Harvard)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
−
|
+
|Will include History wildcard handling in GCHP
  
−
|-valign="top"
 
−
|CH4 in full chemistry simulation
 
−
|Seb Eastham (Harvard)
 
−
|Science
 
−
|
 
  
 
|-valign="top"
 
|-valign="top"
−
|Standard future land use maps (PFT, LAI) for RCP/CMIP6 simulations
+
|Migrate benchmark meteorology from MERRA2 to GEOS-IT
−
|Colette Heald (MIT)<br>Loretta Mickley (Harvard)
+
|GCST
−
|Science
+
|Benchmarking
 
|
 
|
  
−
|-valign="top"
+
|}
−
|Archive GISS met fields from CMIP6 scenarios for community
+
−
|Lee Murray (Rochester)
+
−
|Science
+
−
|
+
  
−
|-valign="top"
+
== Longer term (12-24 months)==
−
|Updates to cold-temperature deposition
+
−
|Lyatt Jaegle (UW)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Simple parameterization for CO2-O3 dependence of stomatal resistance
+
−
|Amos Tai (CUHK)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|NH3 emissions over China
+
−
|Lin Zhang (PKU)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Using GEOS-Chem within GEOS-5
+
−
|Loretta Mickley (Harvard)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Carbon cycle outputs in xCO2, xCH4 as a diagnostic
+
−
|Beata Bukosa (Wollongong)<br>Dylan Jones (UofT)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Seasonal EMEP emissions back to 1980
+
−
|Mat Evans (York)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Updates to NO2 dry deposition
+
−
|Brian Boys (Dalhousie)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|APM update and integration with most recent GEOS-Chem version
+
−
|Gan Luo (SUNY Albany)
+
−
|Structural
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Cosmogenic tracer production
+
−
|Lee Murray (Rochester)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Explore resolution-consistent dust emissions
+
−
*Make high-res concentrations or mass fluxes available offline, implement in met field processing
+
−
|David Ridley (MIT)<br>GCST<br>Nested Model WG
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Dust emissions at nested-grid resolutions
+
−
|Yuxuan Wang (U. Houston)<br>Jun Wang (U. Iowa)
+
−
|Science
+
−
|
+
−
*Check for overlap with resolution-consistent dust emissions above
+
−
 
+
−
|-valign="top"
+
−
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Update SO2 scavenging in convective updrafts for consistency]]
+
−
|Duncan Fairlie (NASA/LARC)
+
−
|Science
+
−
|
+
−
 
+
−
|}
+
  
−
=== Longer term (12-24 months)===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
−
!width="400px"|Item
+
!width="200px"|Feature
−
!width="250px"|Author(s)
+
!width="200px"|Contributor(s)
−
!width="80px"|Type
+
!width="100px"|Model scope
−
!width="250px"|Status
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|GCHP stretched grid
+
|Updates to Aromatic chemistry
−
|Jiawei Zhuang (Harvard)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|1/8 degree nested-grid simulations with GEOS-FP
+
|Nitrate photolysis
−
|Nested Model WG
+
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
−
|Science
+
|Chemistry
 
|
 
|
−
*Wait for more interest
 
  
 
|-valign="top"
 
|-valign="top"
−
|Embedding GEOS-Chem into CESM
+
|In aerosol chemistry Halogens
−
|Jean-Francois Lamarque (NCAR)
+
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Adjoint of carbon cycle simulation in GCHP
+
|Benchmark box model of GC Chemistry
−
|Kevin Bowman (JPL)
+
|Katie Travis (NASA)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Isoprene chemistry v2 (new Caltech update)
+
|Alkyl nitrates Alk7, PHAN
−
|Kelvin Bates (Caltech)
+
|Katie Travis (NASA)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Contemporary land cover: developing historical and updated GEOS-Chem land cover maps based on satellite remote sensing
+
|Add stratospheric ozone species to full-chemistry simulations
−
|Jeff Geddes (BU)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Farquhar-Ball-Barry model to calculate stomatal resistance
+
−
|Amos Tai (CUHK)<br>Jeff Geddes (BU)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Impacts of chemistry on ecosystem/carbon cycle
+
−
|Kevin Bowman (JPL)<br>Anthony Bloom (JPL)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Improved lightning emission scheme
+
 
|Lee Murray (Rochester)
 
|Lee Murray (Rochester)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Resolution-independent lightning NOx
+
|Perchlorate chemistry
−
|Lee Murray (Rochester)
+
|Yuk Chun Chan (UWAB)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Bidirectional NH3 emissions
+
|Explicit heterogeneous sulfate chemistry
−
|Juliet Zhu (CSU)
+
|Katie Travis (NASA)<br>Becky Alexander (UT)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Country-based weekday/weekend variability for EDGAR 4.2
+
|HOx and ozone "emissions" from lightning as option in model to play with
−
|Lee Murray (Rochester)<br>Christoph Keller (Harvard)
+
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Update keytone photolysis
+
|Sea salt aerosol from sea ice leads
−
|Jared Brewer (CSU)<br>Emily Fischer (CSU)
+
|Hannah Horowitz (U. Illinois)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Small alkyl nitrates
+
|Drought-stress algorithm
−
|Jenny Fisher (Wollongong)
+
|Wei Li (U. Houston)
−
|Science
+
 
|
 
|
−
 
−
|-valign="top"
 
−
|YIBS-GC chemistry-biosphere-fire coupling
 
−
|Loretta Mickley (Harvard)<br>Xu Yue (IAP)
 
−
|Science
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Nitrogen-LAI coupling
+
|Biomass burning injection height profiles
−
|Lin Zhang (PKU)<br>Amos Tai (CUHK)
+
|Inderjeet Singh (WashU)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Implementing humidity/VPD dependence of dry deposition
+
|OCIM integration
−
|Jennifer Murphy (U. Toronto)
+
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
−
|Science
+
 
|
 
|
−
 
−
|-valign="top"
 
−
|SO2 wet scavenging
 
−
|Duncan Fairlie (NASA Langley)
 
−
|Science
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Heterogeneous sulfate production
+
|Updating landcover products in GEOS-Chem
−
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
−
|Science
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|MOSAIC implementation
+
|Dry deposition physical improvement
−
|Sebastian Eastham (Harvard)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Particle size climatology
+
−
|Fangqun Yu (SUNY Albany)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Sea salt/dust size distribution
+
−
|David Ridley (MIT)<br>Colette Heald (MIT)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Updates to GTMM
+
−
|Rebecca Stern (Harvard)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Tracer transport ocean
+
 
|Chris Holmes (FSU)
 
|Chris Holmes (FSU)
−
|Science
+
|Dry deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Include Hg in full chemistry simulation
+
|TOMAS WRF-GC in regional Thailand simulation
−
|Noelle Selin (MIT)
+
|Win Trivitayanurak (Chulalongkorn U)
−
|Science
+
|Aerosols
−
|
+
−
 
+
−
|-valign="top"
+
−
|Goddard seasonal weather prediction in GCHP
+
−
|Kevin Bowman (JPL)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Climate index diagnostics (drought, etc.)
+
−
|Chemistry-ecosystems-climate WG
+
−
|Structural
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Joint CO/CO2/CH4 simulation
+
−
|Nicholas Deutscher (U. Wollongong)
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Carbon coupling: oceans and terrestrial models
+
−
|Chris Holmes (FSU)
+
−
|Science
+
−
|
+
−
*Ocim-pure physical transport, ECCO-Darwin ocean biogeochemistry
+
−
 
+
−
|-valign="top"
+
−
|DMS oxidation scheme updating
+
−
|Qianjie Chen (UW)<br>Chemistry WG
+
−
|Science
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Limiting NH3 uptake due to OA
+
−
|Rachel Silvern (Harvard)
+
−
|Science
+
 
|
 
|
  
 
|}
 
|}
−
 
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 20:44, 12 May 2017 (UTC)
 

Latest revision as of 16:59, 30 April 2024

On this page we list the current priorities for GEOS-Chem development. This list is continuously updated based on code readiness and input from the Working Groups and the Steering Committee. For history of past releases see the GEOS-Chem Versions wiki page.

Merged and awaiting release

See the links below for items merged and awaiting release.

Mergeable at any time Version in development
GEOS-Chem no-diff-to-benchmark GEOS-Chem 14.4.0

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
Global continental chlorine (pCl and HCl) emissions Bingqing Zhang (Georgia Tech)
Pengfei Liu (Georgia Tech) 		Emissions Simple
Parameterization of SNA and OM dry size Haihui Zhu (WashU) Aerosols Medium
New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa) 		Emissions Medium
Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4 Lizzie Lundgren (Harvard) GC-Classic Medium
Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard) 		Diagnostics Medium

Prioritized and in the queue

Features listed in this table are prioritized for integration into GEOS-Chem in the near future.

Feature Contributor(s) Model scope Ease of implementation Delivery status Notes and References
ALK4 & R4N2 chemistry Jared Brewer (UMN) Chemistry TBD Not delivered
Mass flux regridding fix in MAPL Tom Clune (GMAO)
Seb Eastham (MIT) 		GCHP input regridding Medium
  • GCHP Issue #377
  • Currently on hold, as the submitted update results in zero diff
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple Delivered
  • geos-chem issue #1745
  • Currently on hold while an issue with seasonality in the new CEDS data is being investigated by the authors.

Ready to go in

Features listed in this table are ready to go in but have either not been delivered or are not yet prioritized for integration into GEOS-Chem.

Feature Contributor(s) Model scope Delivery status Notes and References
KORUS-AQ emissions for East Asia (as an option) Katie Travis (NASA) Emissions Simple
Geologic emission of ethane and propane Matthew Rowlinson and Mat Evans(York) Emissions Delivered
Jan 2023
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam(CUHK)
Amos Tai (CUHK) 		Science Delivered
Feb 2021
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100 Yang Li (Baylor University)
Loretta Mickley (Harvard) 		Emissions Delivered
Jul 2021
  • Data involves many files- need to think about temporal frequency
Online H2 chemistry Maria Paula Pérez-Peña (UNSW)
Jenny Fisher (UOW)
Dylan Millet (UMN) 		Chemistry Delivered
June 2023
DMS Chemistry Linia Tashmim (UC Riverside)
William Porter (UC Riverside) 		Chemistry Not delivered
Organic acids (RCOOH) Katie Travis (NASA) Chemistry Not delivered
Improve carbon & nitrogen conservation in reactions Kelvin Bates (Harvard) Chemistry Not delivered
Blowing snow sea salt in TOMAS Betty Croft (Dalhousie) Aerosols Not delivered
Australian anthropogenic Hg emissions Stephen MacFarlane (UOW)
Jenny Fisher (UOW)
Hannah Horowitz (U. Illinois)
Viral Shah (Harvard) 		Hg simulation Not delivered
WRF-GC Hg simulation Xiaotian Xu (Nanjing U.)
Yanxu Zhang (Nanjing U.) 		Hg simulation
WRF-GC 		Not delivered
Updated HgII gas-partical partitioning Kaiyun Liu (Tsinghua U.)
Qingru Wu (Tsinghua U.)
Shuxiao Wang (Tsinghua U.) 		Hg simulation Not delivered
  • Should be option, not default
Dry deposition to F90 (readability) Chris Holmes (FSU) Dry deposition Not delivered

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
PPN+hv, PPN+OH Robert Ryan (UCL) Chemistry
MBO Michael Vermeuel (UMN) Chemistry
Initial conditions for CH4 correcting background and stratospheric biases Todd Mooring (Harvard) Methane simulation
Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism Bob Yantosca (Harvard) Aerosols
Structural
  • Ongoing
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
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
Canopy Physics Model Sam Silva (MIT) Emissions &
Science
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone Bob Yantosca (Harvard) Model performance
  • Ongoing (will be done as time allows)
Assess memory leak in GCHP Killian Murphy (York) Model performance
Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT)
Killian Murphy (York) 		Model performance
Improve pressure handling in GCHP advection Seb Eastham (MIT)
Yuanjian Zhang (WashU) 		GCHP
Use ExtData2G as default GCHP input module Lizzie Lundgren (Harvard) GCHP Will replace ExtData.rc with yaml file

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
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
Modularization of aerosols code for interface with GOCART in GEOS Christoph Keller (GMAO) Structural
Improve load balancing in GCHP Seb Eastham (MIT) Model performance
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
MAPL version 3 Lizzie Lundgren (Harvard) GCHP Will include History wildcard handling in GCHP


Migrate benchmark meteorology from MERRA2 to GEOS-IT GCST Benchmarking

Longer term (12-24 months)

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

Feature Contributor(s) Model scope Notes and References
Updates to Aromatic chemistry Stephen MacFarlane (UOW)
Jenny Fisher (UOW) 		Chemistry
Nitrate photolysis Mat Evans (York)
Thomas Sherwen (York)
Matthew Rowlinson (York) 		Chemistry
In aerosol chemistry Halogens Mat Evans (York)
Hansen Cao (CU Boulder) 		Chemistry
Benchmark box model of GC Chemistry Katie Travis (NASA) Chemistry
Alkyl nitrates Alk7, PHAN Katie Travis (NASA) Chemistry
Add stratospheric ozone species to full-chemistry simulations Lee Murray (Rochester) Chemistry
Perchlorate chemistry Yuk Chun Chan (UWAB) Chemistry
Explicit heterogeneous sulfate chemistry Katie Travis (NASA)
Becky Alexander (UT) 		Chemistry
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
TOMAS WRF-GC in regional Thailand simulation Win Trivitayanurak (Chulalongkorn U) Aerosols
Retrieved from "https://wiki.seas.harvard.edu/geos-chem/index.php?title=GEOS-Chem_model_development_priorities&oldid=53341"