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

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(Slated for inclusion in v11-02)
(Feature integration in progress)
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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]] (pending approval)
+
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[[PAN|PAN updates (including emissions, deposition, species, chemistry)]]
+
|GCHP carbon simulation
|Emily Fischer (CSU)
+
|Melissa Sulprizio (Harvard)<br>Bob Yantosca (Harvard)
 +
|Carbon
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02a|v11-02a]] (pending approval)
+
*[https://github.com/geoschem/geos-chem/pull/1992 geos-chem PR #1992]
 +
*[https://github.com/geoschem/GCHP/issues/339 GCHP Issue #339]
  
 
|-valign="top"
 
|-valign="top"
|[[EPA/NEI11_North_American_emissions#Monthly_mean_emissions|Monthly mean NEI2011 emissions]]
+
|KORUS-AQ emissions for East Asia (as an option)
|[[GCST]]<br>Katie Travis (Harvard)
+
|Katie Travis (NASA)
 +
|Emissions
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-02#v11-02a|v11-02a]] (pending approval)
 
 
|-bgcolor="#ccffff" valign="top"
 
!colspan="3"|Structural/programming updates
 
  
 
|-valign="top"
 
|-valign="top"
|TBD
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
|  
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
 +
|Emissions
 +
|Simple
 
|
 
|
 
|}
 
 
=== Ready to go in ===
 
 
==== Slated for inclusion in v11-02 ====
 
 
The following items were prioritized for inclusion in [[GEOS-Chem 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"|Chemistry updates
 
  
 
|-valign="top"
 
|-valign="top"
|Updates to isoprene chemistry, includes:
+
|New version of CEDS at 0.1 deg
*Fast photolysis of carbonyl nitrates
+
|Dandan Zhang (WashU)
*Aerosol uptake of organic nitrates
+
|Emissions
*Updated organic deposition
+
|Simple
*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)
+
|Science
+
 
|
 
|
*Delivered to GCST (Mar 2017)
+
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
*Slated for [[GEOS-Chem v11-02#v11-02c|v11-02c]]
+
*'''Currently on hold while an issue with seasonality in the new CEDS data is being investigated'''
  
 
|-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)
|Science
+
|Emissions
 +
|Medium
 
|
 
|
*Delivered to GCST (Apr 2017)
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
*Slated for [[GEOS-Chem v11-02#v11-02c|v11-02c]]
+
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-valign="top"
|[http://acmg.seas.harvard.edu/publications/2016/Marais_SEUS_isopSOA_ACP_2016.pdf Add aqueous isoprene uptake to SOA scheme]
+
|Remove differences in GC-Classic when breaking up runs in time
|Eloise Marais (Harvard)
+
|Lizzie Lundgren (Harvard)
|Science
+
|GC-Classic
 +
|Medium
 
|
 
|
*Delivered to GCST (Jul 2016)
 
*Slated for [[GEOS-Chem v11-02#v11-02c|v11-02c]]
 
  
 
|-valign="top"
 
|-valign="top"
|[[Chemistry_Issues#Fixes_for_carbon_creating_reactions|Carbon balance (fix C creation)]]
+
|GCHP advection diagnostics
|Sarah Safieddine (MIT)
+
|Lizzie Lundgren (Harvard)
|Bug fix
+
|GCHP diagnostics
 +
|Simple
 
|
 
|
*Delivered to GCST (May 2017)
+
*[https://github.com/geoschem/GCHP/pull/395 gchp PR #395]
*Slated for [[GEOS-Chem v11-02#v11-02c|v11-02c]]
+
  
 
|-valign="top"
 
|-valign="top"
|[[Chemistry_Issues#Script_for_evaluating_carbon_balance|Script for checking N, C, etc. balance in chemistry mechanism]]
+
|Only convert units for species that need it
|Barron Henderson (EPA)
+
|Bob Yantosca (Harvard)
|Software
+
|Unit conversions
 +
|Medium
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/2072 geos-chem PR #2072]
 +
*'''This update breaks TOMAS, further development is needed'''
  
|-valign="top"
+
|}
|Halogen chemistry updates
+
|Tom&aacute;s Sherwen (York)<br>Johan Schmidt (Harvard)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Science
+
|
+
*Slated for [[GEOS-Chem v11-02#v11-02d|v11-02d]]
+
  
|-valign="top"
+
== Prioritized and in the queue ==
|Sulfur oxidation by reactive halogens
+
|Qianjie Chen (UW)
+
|Science
+
|
+
*Slated for [[GEOS-Chem v11-02#v11-02d|v11-02d]]
+
*Implement as part of halogen chemistry
+
  
|-valign="top"
+
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
|[[Aerosol_optical_properties#Add_BC_absorption_enhancement_factor|Update density of BC to 1.8 and add absorption enhancement factor in input.geos]]
+
|Xuan Wang (MIT)
+
|Science
+
|
+
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jan 2016)
+
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
  
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
|[[NOx-Ox-HC-aerosol#Monthly mean surface distributions|Monthly mean surface methane distributions]]
+
|-bgcolor="#CCCCCC"
|Lee Murray (NASA GISS/LDEO)
+
!width="200px"|Feature
|Science
+
!width="200px"|Contributor(s)
|
+
!width="100px"|Model scope
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
!width="100px"|Ease of implementation
 +
!width="100px"|Delivery status
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[[UCX_chemistry_mechanism#v11-02|Remove initial stratospheric 2D mixing ratio option]]
+
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
|Seb Eastham (Harvard)
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
|Science
+
|Chemistry
 +
|TBD
 +
|Delivered<br>June 2023
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
*[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"
|[[UCX_chemistry_mechanism#UCX_stratospheric_water_boundary_condition_update|UCX stratospheric water boundary condition update]]
+
|ALK4 & R4N2 chemistry
|Chris Holmes (UC Irvine)<br>Seb Eastham (Harvard)
+
|Jared Brewer (UMN)
|Science
+
|Chemistry
 +
|TBD
 +
|Not delivered
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
*Delivered to GCST (Jan 2017)
+
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., submitted 2023.]
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Metal_catalyzed_oxidation_of_SO2|Metal catalyzed oxidation of SO2]] (as a switch)
+
|[https://github.com/geoschem/geos-chem/pull/1983 Updated gravitational settling, dry mass-weighted mean diameters and hygroscopic growth in aerosol dry deposition]
|Becky Alexander (UW)
+
|Yanshun Li (WashU)
|Science
+
|Aerosols
 +
|Simple
 +
|Delivered<br>Oct 2023
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
*[https://acp.copernicus.org/articles/23/12525/2023/acp-23-12525-2023.html Li et al., ACP, 2023.]
 +
*[https://github.com/geoschem/geos-chem/pull/1983 geos-chem PR #1983]
 +
* '''Waiting on code updates from developer'''
  
 
|-valign="top"
 
|-valign="top"
|[[Option_to_include_spatially_and_seasonally_varying_OM.2FOC|Spatially varying OM/OC]]
+
|Mass flux regridding fix in MAPL
|Sajeev Philip (Dalhousie/NASA Ames)
+
|Lizzie Lundgren (Harvard)<br>Seb Eastham (MIT)
|Science
+
|GCHP input regridding
 +
|Medium
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
 
 
|-valign="top"
 
|[[Rn-Pb-Be_simulation#Radon_flux_diagnostic|Radon flux diagnostic]]
 
|[[GCST]]
 
|Benchmarking
 
 
|
 
|
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
*[https://github.com/GEOS-ESM/MAPL/pull/2056 GEOS-ESM/MAPL PR #2056]
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Mercury updates
+
  
 
|-valign="top"
 
|-valign="top"
|Updates to Hg chemistry from Horowitz et al. (2017)
+
|[https://github.com/geoschem/geos-chem/issues/1747 Parameterization of SNA and OM dry size]
|Hannah Horowitz (U. Washington)<br>Colin Thackray (Harvard)<br>Rebecca Stern (Harvard)
+
|Haihui Zhu (WashU)
|Science
+
|Aerosols
 +
|Medium
 +
|Delivered<br>Aug 2023
 
|
 
|
 +
*[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]
 +
*'''Currently on hold, as this update requires further modifications in the Cloud-J repository'''
  
 
|-valign="top"
 
|-valign="top"
|Year 2010 ocean Hg boundary conditions from ocean model
+
|Capture all trop and PBL height changes in budget diagnostics
|Hannah Horowitz (Harvard)
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
|Science
+
|Diagnostics
 +
|Medium
 
|
 
|
 
|-valign="top"
 
|Historical products emissions from Zhang et al. (2016), should become default
 
|Colin Thackray (Harvard)
 
|Science
 
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
  
|-
+
|}
!colspan="4" bgcolor="#CCFFFF"|Transport updates
+
  
|-valign="top"
+
== Ready to go in ==
|GEOS resolution & subgrid convection
+
|Karen Yu (Harvard)
+
|Science
+
|
+
  
|-
+
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.
!colspan="4" bgcolor="#CCFFFF"|Emission updates
+
  
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
|OMI-based Volcanic emissions 2005-2012
+
|-bgcolor="#CCCCCC"
|Jun Wang (U. Iowa)
+
!width="200px"|Feature
|Science
+
!width="200px"|Contributor(s)
|
+
!width="100px"|Model scope
*Delivered to Christoph Keller?
+
!width="100px"|Delivery status
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[[EDGAR_v4.3_anthropogenic_emissions|EDGAR v4.3.1 emissions]]
+
|Geologic emission of ethane and propane
|Chi Li (Dalhousie)
+
|Matthew Rowlinson and Mat Evans(York)
|Science
+
|Emissions
 +
|Delivered<br>Jan 2023
 
|
 
|
*Delivered to GCST (Nov 2016)
+
*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"
|EPA-derived BC/OA emissions over US (1990-2012)
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
|David Ridley (MIT)<br>Chi Li (Dalhousie)
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Science
 
|Science
 +
|Delivered<br>Feb 2021
 
|
 
|
*Need to coordinate between Ridley and Li versions
+
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
  
 
|-valign="top"
 
|-valign="top"
|[[CAC_anthropogenic_emissions#Historical_emissions|Historical CAC emissions]]
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
|Chi Li (Dalhousie)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
|Science
+
|Emissions
 +
|Delivered<br>Jul 2021
 
|
 
|
*Delivered to GCST (Nov 2016)
+
*Data involves many files- need to think about temporal frequency
  
 
|-valign="top"
 
|-valign="top"
|Ammonia emissions from Arctic seabirds
+
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
|Betty Croft (Dalhousie)
+
|Shixian Zhai (Harvard)
|Science
+
|Emissions
 +
|Delivered
 
|
 
|
 +
*Need permission from Qiang Zhang (Tsinghua U.) to distribute data
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|DMS Chemistry
|Fabien Paulot (NOAA/GFDL)
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
|Science
+
|Chemistry
 +
|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]
+
|Organic acids (RCOOH)
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
*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]]
+
|Improve carbon & nitrogen conservation in reactions
|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
+
|Kelvin Bates (Harvard)
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
+
|Blowing snow sea salt in TOMAS
|Amos Tai (CUHK)
+
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Radon emission update
+
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
|Bo Zhang (NIA/NASA Langley)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
|Science
+
|Hg simulation
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[http://onlinelibrary.wiley.com/doi/10.1002/2016JD025767/full Global ethane emissions]
+
|WRF-GC Hg simulation
|Zitely Tzompa-Sosa (CSU)
+
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
|Science
+
|Hg simulation<br>WRF-GC
 +
|Not delivered
 
|
 
|
*Delivered to GCST (May 2017)
 
  
 
|-valign="top"
 
|-valign="top"
|Inefficient combustion emissions in Africa (DICE-Africa inventory)
+
|Updated HgII gas-partical partitioning
|Eloise Marais (U. Birmingham)<br>Christine Wiedinmyer (NCAR)
+
|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"
|Trash burning emissions
+
|Dry deposition to F90 (readability)
|Eloise Marais (U. Birmingham)<br>Christine Wiedinmyer (NCAR)
+
|Chris Holmes (FSU)
|Science
+
|Dry deposition
 +
|Not delivered
 
|
 
|
  
|-valign="top"
+
|}
|GFAS biomass burning emissions
+
|Mat Evans (York)
+
|Science
+
|
+
  
|-valign="top"
+
== Almost there (< 6 months) ==
|MEIC emissions over China
+
|Jonathan Moch (Harvard), Loretta Mickley (Harvard)
+
|Science
+
|
+
  
|-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.
|Anthropogenic PM2.5 dust source
+
|Sajeev Philip (Dalhousie)
+
|Science
+
|
+
*Delivered to GCST (Mar 2017)
+
  
|-
+
{|border=1 cellspacing=0 cellpadding=5
!colspan="4" bgcolor="#CCFFFF"|Deposition/surface updates
+
|- bgcolor="#cccccc"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Harmonizing Henry's Law coefficients across wet and dry deposition
+
|Replace ISORROPIA with [https://gmd.copernicus.org/preprints/gmd-2023-159/gmd-2023-159.pdf HTEPv1.0]
|[[GCST]]
+
|Seb Eastham (MIT)<br>Lizzie Lundgren (Harvard)
|Science
+
|Aerosol thermodynamics
 
|
 
|
 +
*Will be git submodule
  
 
|-valign="top"
 
|-valign="top"
|[[Aerosols_Working_Group#Sedimentation_of_stratospheric_aerosols|Sedimentation of stratospheric aerosols]]
+
|PPN+hv, PPN+OH
|Sebastian Eastham (Harvard)
+
|Robert Ryan (UCL)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Wet scavenging in mixed-phase clouds
+
|MBO
|Bo Zhang (NIA/NASA Langley)
+
|Michael Vermeuel (UMN)
|Science
+
|Chemistry
 
|
 
|
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
 
  
 
|-valign="top"
 
|-valign="top"
|Oxidant fields from v10 for 2006-2012
+
|Initial conditions for CH4 correcting background and stratospheric biases
*3D chemical source for CO2, CO
+
|Todd Mooring (Harvard)
*OH for tagged CO & CH4
+
|Methane simulation
|Dylan Jones (UofT)
+
|Science
+
 
|
 
|
*Will make data files available on ftp site
 
  
 
|-valign="top"
 
|-valign="top"
|Updated Tagged CO simulation
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
|Jenny Fisher (Wollongong)
+
|Bob Yantosca (Harvard)
|Science
+
|Aerosols<br>Structural
 
|
 
|
 +
*Ongoing
  
 
|-valign="top"
 
|-valign="top"
|India nested-grid for GEOS-5
+
|Re-binning of off-line sea salt and dust for use in TOMAS
|Sreleekha Chaliyakunnel (U. Minnesota)
+
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Africa nested-grid for GEOS-5
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
|Eloise Marais (U. Birmingham)
+
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|West Africa nested-grid for GEOS-FP
+
|ML algorithms for bulk aerosols
|Mat Evans (York)<br>Eleanor Morris (York)
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
|Becky Alexander (UW)
+
|Shixian Zhai (Harvard)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Sea salt aerosol alkalinity
+
|Updates to Hodzic SOA scheme
|Becky Alexander (UW)
+
|Jared Brewer (Harvard)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|AMAP/UNEP 2035 for Hg simulation
+
|Automated reduction in isoprene scheme
|Helene Angot (MIT)
+
|Dan Westervelt (Lamont-Doherty)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Arsenic simulation
+
|Brown carbon chemsitry
|Shiliang Wu (MT)
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
|Science
+
|Aerosols
 
|
 
|
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Structural updates
 
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem_species_units|Uniformity of units]]
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
|[[GCST]]
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
|Structural
+
|Convection
 
|
 
|
*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
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
|Andy Jacobson, NOAA/ESRL
+
|Jintai Lin (PKU)
|Structural
+
|Emissions
 
|
 
|
*Delivered to GCST (May 2017)
+
*Horizontal resolution: 5km, temporal resolution: JJA mean
 +
*monthly data will be available at a later stage; please contact us
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3a: Output diagnostics in NetCDF format]]
+
|Updated biomass burning emission factors and species
|[[GCST]]
+
|Tess Carter (MIT)
|Structural
+
|Emissions
 
|
 
|
  
 
|-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]]
+
|Updated offline sea salt emissions
|[[GCST]]<br>Christoph Keller
+
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
|Bug fix/Structural
+
|Emissions
 
|
 
|
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
 
  
 
|-valign="top"
 
|-valign="top"
|Additional modifications for [[FlexChem]], including:
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, UCX, SOA, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Sam Silva (MIT)
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
|Emissions &<br>Science
|Mike Long (Harvard)<br>[[GCST]]
+
|Structural
+
 
|
 
|
 +
*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"
|FlexGrid: Use HEMCO I/O and regridding capabilities to read and regrid met fields
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
+
|Bob Yantosca (Harvard)
|Structural
+
|Model performance
 
|
 
|
*Delivered to GCST (Oct 2016)
+
*Ongoing (will be done as time allows)
  
 
|-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]]
+
|Retire all BPCH diagnostics
|Seb Eastham (Harvard)
+
|Bob Yantosca (Harvard)
|Science
+
|Diagnostics
 
|
 
|
 
+
*Can be done following the [https://github.com/geoschem/geos-chem/pull/1569 TOMAS update for GCHP]
|}
+
 
+
==== 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
+
  
 
|-valign="top"
 
|-valign="top"
|VBS SOa option
+
|Assess memory leak in GCHP
|Rokjin Park (SNU)
+
|Killian Murphy (York)
|Science
+
|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].  Need to assess if any memory leaks still remain.
  
 
|-valign="top"
 
|-valign="top"
|Benchmark of stratospheric simulation
+
|Hybrid MPI-OpenMP in GCHP
|Dylan Jones (U. Toronto)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
|Benchmarking
+
|Model performance
 
|
 
|
*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
 
 
|}
 
 
==== 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
+
|Improve run directory templating and creation with init_rd.sh and shared directories
|Jiayue Huang (UW)
+
|Jourdan He (WashU)
|Science
+
|Run directories
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Re-evaluation of SST dependence of sea salt emissions
+
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
|Jiayue Huang (UW)
+
|GCST?
|Science
+
|Documentation
 
|
 
|
  
|-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"
+
== Over the horizon (6-12 months) ==
|Lightning NOx chemistry parameterization
+
|Alicia Gressent (MIT)
+
|Science
+
|
+
  
|}
+
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.
 
+
=== Almost there (< 6 months) ===
+
  
 
{| 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"
+
|OH + NO2 rate update
+
|Barron Henderson (EPA)
+
|Science
+
|
+
 
+
|-valign="top"
+
|N2O5 hydrolysis updates
+
|Viral Shah (UW)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Land cover module: Harmonized biosphere-atmosphere exchange and implementing CLM or manual land cover change experiments
+
|Jeff Geddes (BU)
+
|Science
+
|
+
 
+
|-valign="top"
+
|H2 chemistry in UCX
+
|Chris Holmes (FSU)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Uptake of HNO3 onto coarse-mode sea salt
+
|Prasad Kasibhatla (Duke)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Photolysis of NITs
+
|Prasad Kasibhatla (Duke)
+
|Science
+
|
+
 
+
|-valign="top"
+
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Colin Thackray (Harvard)<br>Carey Friedman (formerly MIT)<br>Helen Amos (formerly Harvard)
+
|Science
+
|
+
 
+
 
+
|-valign="top"
+
|New EDGAR sectoral inventory for Hg (1970-2012)
+
|Amanda Giang (MIT)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc.
+
|Sarah Safieddine (MIT)<br>GCST
+
|Science
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive GISS met fields from RCP scenarios for community
+
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
 
|Lee Murray (Rochester)
 
|Lee Murray (Rochester)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Online O3-LAI coupling in GEOS-Chem
+
|Seb aircraft emissions beyond recent 2019 update
|Amos Tai (CUHK)
+
|Seb Eastham (MIT)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Clean up SOA diagnostics
+
|FRP-based fire emsisions for eastern US at 0.2 deg
|GCST
+
|Charlie Fite (FSU)
|Structural
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Calculation consistency throughout code: surface area, HGF (via species database)
+
|Hg iodine chemistry
|GCST
+
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
|Structural
+
|Hg simulation
 
|
 
|
 
|}
 
 
=== 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
+
|Hg simulation in GCHP
|Lee Murray (Rochester)
+
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dynamic fire modeling/prediction
+
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
|Shiliang Wu (MNT)
+
|Yanxu Zhang (Nanjing U.)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Interannually varying ocean model BCs for Hg from ocean model
+
|Dry deposition diagnostics by land cover
|Colin Thackray (Harvard)
+
|Holly Nowell (FSU)
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|PAH & PFCA simulations
+
|Dry deposition process diagnostics
|Peter Ivatt (York)<br>Mat Evans (York)<br>Noelle Selin (MIT)<br>Colin Thackray (Harvard)
+
|Holly Nowell (FSU)
|Science
+
|Diagnostics
|
+
 
+
|-valign="top"
+
|CH4 in full chemistry simulation
+
|Seb Eastham (Harvard)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Standard future land use maps (PFT, LAI) for RCP/CMIP6 simulations
+
|Colette Heald (MIT)<br>Loretta Mickley (Harvard)
+
|Science
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive GISS met fields from CMIP6 scenarios for community
+
|Isotope simulation for CO and CH4 in GCHP
 
|Lee Murray (Rochester)
 
|Lee Murray (Rochester)
|Science
+
|Carbon simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to cold-temperature deposition
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
|Lyatt Jaegle (UW)
+
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
|Science
+
|Emissions<br>CH4 simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Simple parameterization for CO2-O3 dependence of stomatal resistance
+
|Modularization of aerosols code for interface with GOCART in GEOS
|Amos Tai (CUHK)
+
|Christoph Keller (GMAO)
|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
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Cosmogenic tracer production
+
|Improve load balancing in GCHP
|Lee Murray (Rochester)
+
|Seb Eastham (MIT)
|Science
+
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Explore resolution-consistent dust emissions
+
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
*Make high-res concentrations or mass fluxes available offline, implement in met field processing
+
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
|David Ridley (MIT)<br>GCST<br>Nested Model WG
+
|Transport
|Science
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dust emissions at nested-grid resolutions
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
|Yuxuan Wang (U. Houston)<br>Jun Wang (U. Iowa)
+
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
|Science
+
|Transport
 
|
 
|
*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]]
+
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
|Duncan Fairlie (NASA/LARC)  
+
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
|Science
+
|Transport
 
|
 
|
  
 
|}
 
|}
  
=== Longer term (12-24 months)===
+
== Longer term (12-24 months)==
 +
 
 +
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- 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)
 

Revision as of 18:08, 21 March 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
GCHP carbon simulation Melissa Sulprizio (Harvard)
Bob Yantosca (Harvard)
Carbon Medium
KORUS-AQ emissions for East Asia (as an option) Katie Travis (NASA) Emissions Simple
Global continental chlorine (pCl and HCl) emissions Bingqing Zhang (Georgia Tech)
Pengfei Liu (Georgia Tech)
Emissions Simple
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple
  • geos-chem issue #1745
  • Currently on hold while an issue with seasonality in the new CEDS data is being investigated
New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa)
Emissions Medium
Remove differences in GC-Classic when breaking up runs in time Lizzie Lundgren (Harvard) GC-Classic Medium
GCHP advection diagnostics Lizzie Lundgren (Harvard) GCHP diagnostics Simple
Only convert units for species that need it Bob Yantosca (Harvard) Unit conversions 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
Online H2 chemistry Maria Paula Pérez-Peña (UNSW)
Jenny Fisher (UOW)
Dylan Millet (UMN)
Chemistry TBD Delivered
June 2023
ALK4 & R4N2 chemistry Jared Brewer (UMN) Chemistry TBD Not delivered
Updated gravitational settling, dry mass-weighted mean diameters and hygroscopic growth in aerosol dry deposition Yanshun Li (WashU) Aerosols Simple Delivered
Oct 2023
Mass flux regridding fix in MAPL Lizzie Lundgren (Harvard)
Seb Eastham (MIT)
GCHP input regridding Medium
Parameterization of SNA and OM dry size Haihui Zhu (WashU) Aerosols Medium Delivered
Aug 2023
Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard)
Diagnostics Medium

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
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
MEIC (China regional) for 2000-2017 at 0.5x0.625 deg Shixian Zhai (Harvard) Emissions Delivered
  • Need permission from Qiang Zhang (Tsinghua U.) to distribute data
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
Replace ISORROPIA with HTEPv1.0 Seb Eastham (MIT)
Lizzie Lundgren (Harvard)
Aerosol thermodynamics
  • Will be git submodule
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)
Retire all BPCH diagnostics Bob Yantosca (Harvard) Diagnostics
Assess memory leak in GCHP Killian Murphy (York) Model performance
Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT)
Killian Murphy (York)
Model performance
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

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

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