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

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(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/2015/index.html International GEOS-Chem Meeting (IGC7)] in May 2015 and has been continuously updated since 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 2015 ==
+
See the links below for items merged and awaiting release.
  
Items "Awaiting release" will be part of the next version release of GEOS-Chem and are actively being incorporated into the standard model and benchmarked. Other items 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]]'''
  
{| border=1 cellspacing=0 cellpadding=5
+
|}
|- bgcolor="#cccccc"
+
!width="400px"|Item
+
!width="300px"|Author(s)
+
!width="400px"|Status
+
  
|- bgcolor="#ccffff"
+
== Feature integration in progress ==
!width="400px"|Science updates
+
 
!width="300px"|
+
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.
!width="400px"|
+
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[[Air_Quantity_Updates_for_v11-01a|Correction for wet/dry pressure]]
+
|GCHP carbon simulation
|Lizzie Lundgren (Harvard)<br>Meemong Lee (JPL)
+
|Melissa Sulprizio (Harvard)<br>Bob Yantosca (Harvard)
 +
|Carbon
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01a|v11-01a]] and approved on 07 Jul 2015
+
*[https://github.com/geoschem/geos-chem/pull/1992 geos-chem PR #1992]
*''Update 30 July 2015:'' A moisture signature is observed in CO2 concentrations during carbon simulations with zero emissions and constant 370 ppm initial conditions. The moisture signature is expected for wet mixing ratio (v/v total air) but not dry mixing ratio (v/v dry air). This issue is currently under investigation.  
+
*[https://github.com/geoschem/GCHP/issues/339 GCHP Issue #339]
  
 
|-valign="top"
 
|-valign="top"
|Update DMS climatology to Lana
+
|KORUS-AQ emissions for East Asia (as an option)
|Tom Breider (Harvard)
+
|Katie Travis (NASA)
 +
|Emissions
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]], awaiting benchmark approval
 
  
 
|-valign="top"
 
|-valign="top"
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Impaction scavenging for hydrophobic BC]]
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
|Qiaoqiao Wang (Max Planck Institute)
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
 +
|Emissions
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]], awaiting benchmark approval
 
  
 
|-valign="top"
 
|-valign="top"
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Homogeneous IN removal]]
+
|New version of CEDS at 0.1 deg
|Qiaoqiao Wang (Max Planck Institute)
+
|Dandan Zhang (WashU)
 +
|Emissions
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]], awaiting benchmark approval
+
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
 +
*'''Currently on hold while an issue with seasonality in the new CEDS data is being investigated'''
  
 
|-valign="top"
 
|-valign="top"
|[[Aerosol emissions#Online emission of marine primary organic aerosol .28POA.29|Online emission of marine primary organic aerosol (POA)]]
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
|Brett Gantt (NCSU)<br>Matthew Johnson (NASA Ames)
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
 +
|Emissions
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]], awaiting benchmark approval
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-valign="top"
|[[Aerosols_Working_Group#Organic_Aerosol_Density_.28v.10-01.29|Density of OA update]]
+
|Remove differences in GC-Classic when breaking up runs in time
|Melanie Hammer (Dalhousie)<br>Elo&iuml;se Marais (Harvard)
+
|Lizzie Lundgren (Harvard)
 +
|GC-Classic
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]], awaiting benchmark approval
 
  
 
|-valign="top"
 
|-valign="top"
|[[Aerosol_optical_properties#Implementation_of_optical_properties_for_brown_carbon|Addition of BrC UV absorption to address impacts ]]on OH
+
|GCHP advection diagnostics
|Melanie Hammer (Dalhousie)
+
|Lizzie Lundgren (Harvard)
 +
|GCHP diagnostics
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]], awaiting benchmark approval
+
*[https://github.com/geoschem/GCHP/pull/395 gchp PR #395]
  
 
|-valign="top"
 
|-valign="top"
|[[Mineral_dust_aerosols#Surface_chemistry_on_dust|Acid uptake on dust aerosols]]
+
|Only convert units for species that need it
|T. Duncan Fairlie (NASA/LARC)
+
|Bob Yantosca (Harvard)
 +
|Unit conversions
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]], awaiting benchmark approval
+
*[https://github.com/geoschem/geos-chem/pull/2072 geos-chem PR #2072]
 +
*'''This update breaks TOMAS, further development is needed'''
 +
 
 +
|}
 +
 
 +
== Prioritized and in the queue ==
 +
 
 +
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
 +
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="100px"|Delivery status
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[[Mineral_dust_aerosols#Improved_dust_size_distribution_scheme|Improved dust size distribution scheme]]
+
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
|Li Zhang (Colorado U.)<br>Daven Henze (Colorado U.)
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
 +
|Chemistry
 +
|TBD
 +
|Delivered<br>June 2023
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]], awaiting benchmark approval
+
*[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"
|[[POPs_simulation#Updates_to_PAH_code|Updates to PAH code]]
+
|ALK4 & R4N2 chemistry
|Carey Friedman (MIT)
+
|Jared Brewer (UMN)
 +
|Chemistry
 +
|TBD
 +
|Not delivered
 
|
 
|
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01c|v11-01c]]
+
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jun 2015)
+
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., submitted 2023.]
  
 
|-valign="top"
 
|-valign="top"
|Hg Ocean MLD bug fixes
+
|[https://github.com/geoschem/geos-chem/pull/1983 Updated gravitational settling, dry mass-weighted mean diameters and hygroscopic growth in aerosol dry deposition]
|Amanda Giang (MIT)
+
|Yanshun Li (WashU)
 +
|Aerosols
 +
|Simple
 +
|Delivered<br>Oct 2023
 
|
 
|
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01c|v11-01c]]
+
*[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"
|Hg Ocean rate coefficients (as an option, not default)
+
|Mass flux regridding fix in MAPL
|Shaojie Song (MIT)
+
|Lizzie Lundgren (Harvard)<br>Seb Eastham (MIT)
 +
|GCHP input regridding
 +
|Medium
 
|
 
|
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01c|v11-01c]]
 
 
|-valign="top"
 
|Hg Arctic process updates
 
|Jenny Fisher (Wollongong)
 
 
|
 
|
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01c|v11-01c]]
+
*[https://github.com/GEOS-ESM/MAPL/pull/2056 GEOS-ESM/MAPL PR #2056]
  
 
|-valign="top"
 
|-valign="top"
|Hg emission updates (NEI2011, NPRI2011, UNEP2010 with adjustments for in-plume reduction and emission controls)
+
|[https://github.com/geoschem/geos-chem/issues/1747 Parameterization of SNA and OM dry size]
|Yanxu Zhang (Harvard)<br>Amanda Giang (MIT)
+
|Haihui Zhu (WashU)
 +
|Aerosols
 +
|Medium
 +
|Delivered<br>Aug 2023
 
|
 
|
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01c|v11-01c]]
+
*[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]
|-bgcolor="#ccffff" valign="top"
+
*'''Currently on hold, as this update requires further modifications in the Cloud-J repository'''
!width="400px"|Structural/programming updates for HPC
+
!width="300px"|
+
!width="400px"|
+
  
 
|-valign="top"
 
|-valign="top"
|Structural updates for GEOS-Chem HP
+
|Capture all trop and PBL height changes in budget diagnostics
|[[GEOS-Chem Support Team]]<br>NASA/GMAO
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
 +
|Diagnostics
 +
|Medium
 
|
 
|
*This will be an ongoing process that will occur simultaneously as the above science updates are brought into GEOS-Chem.
 
 
|-bgcolor="#ccffff" valign="top"
 
!width="400px"|Documentation
 
!width="300px"|
 
!width="400px"|
 
 
|-valign="top"
 
|[[GEOS-Chem_v10-01#Adding_documentation_to_describe_internal_changes_made_to_GMAO_met_field_products|Update wiki documentation for GMAO met field products]]:
 
*Naming convention used by GMAO
 
*Version numbers corresponding to dates of met field data
 
|[[GEOS-Chem Support Team]]<br>NASA/GMAO
 
 
|
 
|
*In progress
+
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
  
 
|}
 
|}
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 17:30, 10 August 2015 (UTC)
+
== Ready to go in ==
  
=== 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.
  
{| border=1 cellspacing=0 cellpadding=5
+
{| border=1 cellspacing=0 cellpadding=5  
|- bgcolor="#cccccc"
+
|-bgcolor="#CCCCCC"
!width="400px"|Item
+
!width="200px"|Feature
!width="300px"|Author(s)
+
!width="200px"|Contributor(s)
!width="400px"|Status
+
!width="100px"|Model scope
 +
!width="100px"|Delivery status
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[[MEGAN_biogenic_emissions#CO2_direct_effect_on_isoprene_emissions|CO2 direct effect on isoprene emissions]]
+
|Geologic emission of ethane and propane
|Amos Tai (CUHK)
+
|Matthew Rowlinson and Mat Evans(York)
 +
|Emissions
 +
|Delivered<br>Jan 2023
 
|
 
|
*Delivered to [[GEOS-Chem Support Team|GCST]] (Nov 2013)
+
*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
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01d|v11-01d]]
+
  
 
|-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/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
|Becky Alexander (UW)
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 +
|Science
 +
|Delivered<br>Feb 2021
 
|
 
|
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01d|v11-01d]]
+
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
  
 
|-valign="top"
 
|-valign="top"
|[[Organics Working Group#Criegee intermediates|Criegee intermediates]]
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
|Dylan Millet (U. Minnesota)<br>Elo&iuml;se Marais (Harvard)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
 +
|Emissions
 +
|Delivered<br>Jul 2021
 
|
 
|
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jun 2015)
+
*Data involves many files- need to think about temporal frequency
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01d|v11-01d]]
+
  
 
|-valign="top"
 
|-valign="top"
|[[PAN|PAN updates]]
+
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
|Emily Fischer (CSU)
+
|Shixian Zhai (Harvard)
 +
|Emissions
 +
|Delivered
 
|
 
|
*Delivered to [[GEOS-Chem Support Team|GCST]] (May 2013)
+
*Need permission from Qiang Zhang (Tsinghua U.) to distribute data
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01d|v11-01d]]
+
  
 
|-valign="top"
 
|-valign="top"
|[[NOx-Ox-HC-aerosol#Monthly mean surface distributions|Monthly mean surface methane distributions]]
+
|DMS Chemistry
|Lee Murray (NASA GISS/LDEO)
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
 +
|Chemistry
 +
|Not delivered
 
|
 
|
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01d|v11-01d]]
 
  
 
|-valign="top"
 
|-valign="top"
|Developing a common data structure to contain Henry's law constants and other relevant parameters for each species
+
|Organic acids (RCOOH)
 +
|Katie Travis (NASA)
 +
|Chemistry
 +
|Not delivered
 
|
 
|
*[[GEOS-Chem Support Team]]
+
 
*Katie Travis (Harvard)
+
|-valign="top"
 +
|Improve carbon & nitrogen conservation in reactions
 +
|Kelvin Bates (Harvard)
 +
|Chemistry
 +
|Not delivered
 
|
 
|
*In progress
 
*Could be ready for [[GEOS-Chem v11-01#v11-01c|v11-01c]] or [[GEOS-Chem v11-01#v11-01d|v11-01d]]
 
  
 
|-valign="top"
 
|-valign="top"
|[[MERRA2|Adding support for MERRA2 meteorology]]
+
|Blowing snow sea salt in TOMAS
|[[GEOS-Chem Support Team]]
+
|Betty Croft (Dalhousie)
 +
|Aerosols
 +
|Not delivered
 
|
 
|
*In progress
 
*Could be ready for [[GEOS-Chem v11-01#v11-01c|v11-01c]] or [[GEOS-Chem v11-01#v11-01d|v11-01d]]
 
  
 
|-valign="top"
 
|-valign="top"
|Fix to direct/diffuse radiation
+
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
|Katie Travis (Harvard)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
 +
|Hg simulation
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[Dry_deposition#Fix_for_NO3_.2B_ISOP_product|Fix for NO3 + ISOP product]]
+
|WRF-GC Hg simulation
|Katie Travis (Harvard)
+
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation<br>WRF-GC
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Update OH + NO2 rate
+
|Updated HgII gas-partical partitioning
|Barron Henderson (UF)
+
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
 +
|Hg simulation
 +
|Not delivered
 
|
 
|
 +
*Should be option, not default
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate and nitrate simulation]]
+
|Dry deposition to F90 (readability)
|Becky Alexander (UW)
+
|Chris Holmes (FSU)
 +
|Dry deposition
 +
|Not delivered
 
|
 
|
  
 
|}
 
|}
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 14:00, 3 August 2015 (UTC)
+
== Almost there (< 6 months) ==
  
=== Almost there (< 6 months) ===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
  
{| border=1 cellspacing=0 cellpadding=5
+
{|border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
!width="400px"|Item
+
!width="200px"|Feature
!width="300px"|Author(s)
+
!width="200px"|Contributor(s)
!width="400px"|Status
+
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Update MODIS LAI fields through 2015
+
|Replace ISORROPIA with [https://gmd.copernicus.org/preprints/gmd-2023-159/gmd-2023-159.pdf HTEPv1.0]
|Barron Henderson (UF)
+
|Seb Eastham (MIT)<br>Lizzie Lundgren (Harvard)
 +
|Aerosol thermodynamics
 
|
 
|
 +
*Will be git submodule
  
 
|-valign="top"
 
|-valign="top"
|[[Python code for GEOS-Chem|Python GEOS-Chem output processing and visualization package]]
+
|PPN+hv, PPN+OH
|Beno&icirc;t Bovy (U. Li&egrave;ge-Belgium)
+
|Robert Ryan (UCL)
 +
|Chemistry
 
|
 
|
*Users may download and test it and submit feedback to Benoit Bovy.
 
  
 
|-valign="top"
 
|-valign="top"
|Benchmark of stratosphere simulation
+
|MBO
|Dylan Jones (U. Toronto)
+
|Michael Vermeuel (UMN)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Benchmark for nested NA model
+
|Initial conditions for CH4 correcting background and stratospheric biases
|Jun Wang (UNL)
+
|Todd Mooring (Harvard)
 +
|Methane simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|High-resolution regional emissions (to be implemented via HEMCO)
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
|Lin Zhang (PKU)<br>Yuxuan Wang (Texas A&M)
+
|Bob Yantosca (Harvard)
 +
|Aerosols<br>Structural
 
|
 
|
 +
*Ongoing
  
 
|-valign="top"
 
|-valign="top"
|Flexchem
+
|Re-binning of off-line sea salt and dust for use in TOMAS
|Mike Long (Harvard)
+
|Betty Croft (Dalhousie)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to isoprene chemistry, includes:
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
*Fast photolysis of carbonyl nitrates
+
|Betty Croft (Dalhousie)
*Aerosol uptake of organic nitrates
+
|Aerosols
|Jenny Fisher (U. Wollongong)<br>Elo&iuml;se Marais (Harvard)<br>Kelvin Bates (Caltech)<br>Katie Travis (Harvard)
+
 
|
 
|
*This has already been added to the SEAC4RS research version of GEOS-Chem
 
  
 
|-valign="top"
 
|-valign="top"
|3D chemical source for CO2 and CO; OH for tagged CO and CH4 simulations
+
|ML algorithms for bulk aerosols
|Dylan Jones (U. Toronto)
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Hg code updates (emissions, chemistry, ocean, land)
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
|[[Hg and POPs Working Group]]
+
|Shixian Zhai (Harvard)
 +
|Aerosols
 
|
 
|
 
  
 
|-valign="top"
 
|-valign="top"
|Lightning NOx plume chemistry
+
|Updates to Hodzic SOA scheme
|Alicia Gressent (U. Paul Sabatier)
+
|Jared Brewer (Harvard)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Nested CO2, CH4, Hg, TOMAS, adjoint, etc.
+
|Automated reduction in isoprene scheme
|[[Nested Model Working Group]]
+
|Dan Westervelt (Lamont-Doherty)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updated nighttime isoprene chemistry
+
|Brown carbon chemsitry
|Rebecca Schwantes (Caltech)
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updated organic deposition
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
|Katie Travis (Harvard)<br>Jenny Fisher (U. Wollongong)
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
 +
|Convection
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|EPA-derived BC/OA emissions over US (1990-2012)
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
|David Ridley (MIT)
+
|Jintai Lin (PKU)
 +
|Emissions
 
|
 
|
 +
*Horizontal resolution: 5km, temporal resolution: JJA mean
 +
*monthly data will be available at a later stage; please contact us
  
 
|-valign="top"
 
|-valign="top"
|Update density of BC to 1.8 and add absorption enhancement factor in input.geos
+
|Updated biomass burning emission factors and species
|Xuan Wang (MIT)
+
|Tess Carter (MIT)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Observation operators for CO2 OCO-2 in GEOS-Chem Adjoint
+
|Updated offline sea salt emissions
|Kevin Bowman (JPL)<br>Dylan Jones (U. Toronto)
+
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Observation operators for CH4 GOSAT, SCIAMACHY in GEOS-Chem Adjoint
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
|Dylan Jones (U. Toronto)<br>Alex Turner (Harvard)
+
|Sam Silva (MIT)
 +
|Emissions &<br>Science
 
|
 
|
 +
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
 +
*Needs to be updated to a more recent GEOS-Chem version
  
 
|-valign="top"
 
|-valign="top"
|Remove dependence of species drydep on HNO3 drydep
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
|Katie Travis (Harvard)<br>Jenny Fisher (U. Wollongong)
+
|Bob Yantosca (Harvard)
 +
|Model performance
 
|
 
|
 +
*Ongoing (will be done as time allows)
  
 
|-valign="top"
 
|-valign="top"
|Arctic Hg cycling
+
|Retire all BPCH diagnostics
|Jenny Fisher (U. Wollongong)
+
|Bob Yantosca (Harvard)
 +
|Diagnostics
 
|
 
|
 +
*Can be done following the [https://github.com/geoschem/geos-chem/pull/1569 TOMAS update for GCHP]
  
 
|-valign="top"
 
|-valign="top"
|MOSAIC implementation
+
|Assess memory leak in GCHP
|Sebastian Eastham (MIT)
+
|Killian Murphy (York)
 +
|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"
|Updated documentation on setting up new nested domains
+
|Hybrid MPI-OpenMP in GCHP
|Lin Zhang (PKU)<br>Yuxuan Wang (Texas A&M)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
 +
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Nested model publication wiki page
+
|Improve run directory templating and creation with init_rd.sh and shared directories
|Jun Wang (UNL)
+
|Jourdan He (WashU)
 +
|Run directories
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Past and future fire emissions under RCPs
+
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
|Loretta Mickley (Harvard)<br>Yuhang Wang (GIT)<br>Shiliang Wu (MT)
+
|GCST?
|
+
|Documentation
 
+
|-valign="top"
+
|Halogen chemistry updates
+
|Tom&aacute;s Sherwen (York)<br>Johan Schmidt (Harvard)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|
+
 
+
|-valign="top"
+
|QFED fire emissions (up to 2014)
+
|Christoph Keller (Harvard)<br>Katie Travis (Harvard)
+
|
+
 
+
|-
+
|[[Implementation of consistent units in GEOS-Chem|Uniformity of units]]
+
|[[GEOS-Chem Support Team]]
+
 
|
 
|
  
 
|}
 
|}
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 14:41, 11 August 2015 (UTC)
+
== Over the horizon (6-12 months) ==
  
=== Over the horizon (6-12 months) ===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
!width="400px"|Item
+
!width="200px"|Feature
!width="300px"|Author(s)
+
!width="200px"|Contributor(s)
!width="400px"|Status
+
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|A snow NOx source from deep snowpack
+
|Snow / Icy Bromine
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dust emissions at nested-grid resolution
+
|Monoterpene oxidation scheme
|Yuxuan Wang (Texas A&M)<br>Jun Wang (UNL)
+
|Jessica Haskins (MIT)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive meteorological fields with higher resolution (for RCPs)
+
|Fire related VOCs including furans
|Lee Murray (NASA GISS/LDEO)
+
|Lu Hu (UMT)<br>Lixu Jin (UMT)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Land cover module in GEOS-Chem
+
|Extension of UCX into the mesosphere
|Jeffrey Geddes (MIT)<br>Michael Long (Harvard)
+
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Improved lightning emission scheme
+
|Methane flux ingestion
|Lee Murray (NASA GISS/LDEO)
+
|Eloise Marais (UCL)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive high resolution wind fields for sea salt
+
|Dust non-sphericity impacts on surface chem and optical properties
|[[GEOS-Chem Support Team]]
+
|Inderjeet Singh (WashU)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Size-resolved stratospheric aerosol
|Carey Friedman (MIT)<br>Helen Amos (Harvard)
+
|Seb Eastham (MIT)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|VBS SOA option
+
|Extend aerosol settling
|Rokjin Park (SNU)
+
|Eloise Marais (UCL)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Kz eddy mixing scheme
+
|Stratospheric aerosol APM
|Karen Yu (Harvard)
+
|Fangqun Yu (SUNY)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Update HCN simulation, implement in standard model via Flexchem
+
|Plume-in-grid model
|Jenny Fisher (U. Wollongong)
+
|Hongwei Sun (Harvard)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Merge standard simulation with specialty simulations for OVOC, acids, aromatics, dicarbonyls, terpenes
+
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
|Dylan Millet (UMN)<br>Xin Chen (UMN)
+
|Lee Murray (Rochester)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Cl chemistry updates
+
|Seb aircraft emissions beyond recent 2019 update
|Lyatt Jaegl&eacute; (UW)
+
|Seb Eastham (MIT)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Automate redistribution of NOx in HEMCO
+
|FRP-based fire emsisions for eastern US at 0.2 deg
|Lee Murray (NASA GISS/LDEO)
+
|Charlie Fite (FSU)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Injection height for fire emissions
+
|Hg iodine chemistry
|Emily Fischer (CSU)
+
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Option for daily OH, etc. for Hg simulation
+
|Hg simulation in GCHP
|Noelle Selin (MIT)
+
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Surface ocean Hg boundary conditions from MITgcm
+
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
|Hannah Horowitz (Harvard)
+
|Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 
|
 
|
  
|-
+
|-valign="top"
|NetCDF output: Flexible diagnostic package and tracer restart file
+
|Dry deposition diagnostics by land cover
|[[GEOS-Chem Support Team]]
+
|Holly Nowell (FSU)
 +
|Diagnostics
 
|
 
|
  
|}
+
|-valign="top"
 +
|Dry deposition process diagnostics
 +
|Holly Nowell (FSU)
 +
|Diagnostics
 +
|
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:56, 9 June 2015 (UTC)
+
|-valign="top"
 +
|Isotope simulation for CO and CH4 in GCHP
 +
|Lee Murray (Rochester)
 +
|Carbon simulation
 +
|
  
=== Longer term (12-24 months)===
+
|-valign="top"
 
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
{| border=1 cellspacing=0 cellpadding=5
+
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
|- bgcolor="#cccccc"
+
|Emissions<br>CH4 simulation
!width="400px"|Item
+
|
!width="300px"|Author(s)
+
!width="400px"|Status
+
  
 
|-valign="top"
 
|-valign="top"
|Global GEOS-FP native-resolution met fields to enable flexible nested domains
+
|Modularization of aerosols code for interface with GOCART in GEOS
|Jintai Lin (PKU)<br>Lin Zhang (PKU)<br>[[GEOS-Chem Support Team]]
+
|Christoph Keller (GMAO)
 +
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|DMS oxidation scheme updating
+
|Improve load balancing in GCHP
|Tom Breider (Harvard)<br>Becky Alexander (U. Washington)<br>[[Chemistry Issues|Oxidants and Chemistry Working Group]]
+
|Seb Eastham (MIT)
 +
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dynamics of stomatal conductance in dry deposition
+
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
|Amos Tai (CUHK)
+
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
 +
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|New dry deposition module (Zhang et al., 2013)
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
|Jintai Lin (PKU)
+
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
 +
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Bi-directional NH3 emissions
+
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
|Juliet Zhu (CSU)<br>Lin Zhang (PKU)
+
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>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.
 +
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|- bgcolor="#cccccc"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Arsenic simulation
+
|Updates to Aromatic chemistry
|Shiliang Wu (MT)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Hg benchmark updates for atmosphere and ocean
+
|Nitrate photolysis
|Hannah Horowitz (Harvard)<br>Viral Shah (UW)<br>Shaojie Song (MIT)
+
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Emission scheme of dust: subgrid wind variation to remove resolution dependence and better interannual variability
+
|In aerosol chemistry Halogens
|David Ridley (MIT)
+
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Ozone damage to vegetation
+
|Benchmark box model of GC Chemistry
|Amos Tai (CUHK)
+
|Katie Travis (NASA)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Implement biogenic emissions of ethane, propane
+
|Alkyl nitrates Alk7, PHAN
|Zitely Tzompa (CSU)
+
|Katie Travis (NASA)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Global evaluation of using LWC and ICW variables from met fields
+
|Add stratospheric ozone species to full-chemistry simulations
|[http://web.atmos.ucla.edu/~qli/trop/Home.html UCLA group]<br>Hongyu Liu (NIA/NASA LARC)<br>Betty Croft (Dalhousie)
+
|Lee Murray (Rochester)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Joint CO/CO2/CH4 forward model simulation
+
|Perchlorate chemistry
|Nicholas Deutscher (U. Wollongong)
+
|Yuk Chun Chan (UWAB)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Subgrid scale precipitation variability
+
|Explicit heterogeneous sulfate chemistry
|[http://acmg.seas.harvard.edu/ Harvard group]
+
|Katie Travis (NASA)<br>Becky Alexander (UT)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dry deposition: Update the ozone dry deposition scheme
+
|HOx and ozone "emissions" from lightning as option in model to play with
|Murphy group (UofT)
+
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Country-based weekend/weekday variability for EDGAR v4.2
+
|Sea salt aerosol from sea ice leads
|Lee Murray (NASA GISS/LDEO)<br>Christoph Keller (Harvard)
+
|Hannah Horowitz (U. Illinois)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Sea salt emission from sea ice
+
|Drought-stress algorithm
|Jiayue Huang (UW)
+
|Wei Li (U. Houston)
 +
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Resolution-independent lightning NOx scaling
+
|Biomass burning injection height profiles
|Lee Murray (NASA GISS/LDEO)
+
|Inderjeet Singh (WashU)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Historical Hg emissions (1850-present)
+
|OCIM integration
|Hannah Horowitz (Harvard)
+
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
 +
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Nested-grid model with GEOS-FP at 1/2&deg; x 5/8&deg; resolution
+
|Updating landcover products in GEOS-Chem
|[[Nested Model Working Group]]
+
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
 +
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|TNO emissions over Europe (7km)
+
|Dry deposition physical improvement
|[http://acmg.seas.harvard.edu/geos/geos_people.html#athens Greece team]
+
|Chris Holmes (FSU)
 +
|Dry deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Re-evaluation of SST dependence of sea salt emissions
+
|TOMAS WRF-GC in regional Thailand simulation
|Jiayue Huang (UW)
+
|Win Trivitayanurak (Chulalongkorn U)
 +
|Aerosols
 
|
 
|
  
 
|}
 
|}
 
--[[User:Melissa Payer|Melissa Sulprizio]] 14:08, 11 May 2015 (EDT)
 

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