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

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(Almost there (< 6 months))
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On this page we list the current priorities for GEOS-Chem development. This list was compiled by the user Working Groups at the last [http://acmg.seas.harvard.edu/geos/meetings/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"|
+
!width="400px"|
+
  
|-valign="top"
+
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.  
|[[Air_Quantity_Updates_for_v11-01a|Correction for wet/dry pressure]]
+
|Lizzie Lundgren (Harvard)<br>Meemong Lee (JPL)
+
|
+
*Included in [[GEOS-Chem v11-01#v11-01a|v11-01a]] and approved on 07 Jul 2015
+
*''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.  
+
  
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
|Update DMS climatology to Lana
+
|-bgcolor="#CCCCCC"
|Tom Breider (Harvard)
+
!width="200px"|Feature
|
+
!width="200px"|Contributor(s)
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]], which was approved on 19 Aug 2015
+
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Impaction scavenging for hydrophobic BC]]
+
|KORUS-AQ emissions for East Asia (as an option)
|Qiaoqiao Wang (Max Planck Institute)
+
|Katie Travis (NASA)
 +
|Emissions
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]], which was approved on 19 Aug 2015
 
  
 
|-valign="top"
 
|-valign="top"
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Homogeneous IN removal]]
+
|[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]], which was approved on 19 Aug 2015
 
  
 
|-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/1747 Parameterization of SNA and OM dry size]
|Brett Gantt (NCSU)<br>Matthew Johnson (NASA Ames)
+
|Haihui Zhu (WashU)
 +
|Aerosols
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]], which was approved on 19 Aug 2015
+
*[https://egusphere.copernicus.org/preprints/2022/egusphere-2022-1292/ Zhu et al., EGUsphere, submitted 2023.]
 +
*[https://github.com/geoschem/geos-chem/pull/1902 geos-chem PR #1902]
  
 
|-valign="top"
 
|-valign="top"
|[[Aerosols_Working_Group#Organic_Aerosol_Density_.28v.10-01.29|Density of OA update]]
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
|Melanie Hammer (Dalhousie)<br>Elo&iuml;se Marais (Harvard)
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
 +
|Emissions
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]], which was approved on 19 Aug 2015
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-valign="top"
|[[Aerosol_optical_properties#Implementation_of_optical_properties_for_brown_carbon|Addition of BrC UV absorption to address impacts ]]on OH
+
|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
|Melanie Hammer (Dalhousie)
+
|Lizzie Lundgren (Harvard)
 +
|GC-Classic
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]], which was approved on 19 Aug 2015
+
*[https://github.com/geoschem/HEMCO/issues/18 hemco issue #18]
  
 
|-valign="top"
 
|-valign="top"
|[[Mineral_dust_aerosols#Surface_chemistry_on_dust|Acid uptake on dust aerosols]]
+
|Replace ISORROPIA with [https://gmd.copernicus.org/articles/17/2197/2024/ HETPv1.0]
|T. Duncan Fairlie (NASA/LARC)
+
|Lizzie Lundgren (Harvard)<br>Seb Eastham (ICL)
 +
|Aerosol thermodynamics
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]], which was approved on 19 Aug 2015
+
*[https://github.com/geoschem/geos-chem/issues/2235 geos-chem issue #2235]
  
 
|-valign="top"
 
|-valign="top"
|[[Mineral_dust_aerosols#Improved_dust_size_distribution_scheme|Improved dust size distribution scheme]]
+
|Only convert units for species that need it
|Li Zhang (Colorado U.)<br>Daven Henze (Colorado U.)
+
|Bob Yantosca (Harvard)
 +
|Unit conversions
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]], which was approved on 19 Aug 2015
+
*[https://github.com/geoschem/geos-chem/pull/2072 geos-chem PR #2072]
  
 
|-valign="top"
 
|-valign="top"
|[[POPs_simulation#Updates_to_PAH_code|Updates to PAH code]]
+
|Capture all trop and PBL height changes in budget diagnostics
|Carey Friedman (MIT)
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
 +
|Diagnostics
 +
|Medium
 
|
 
|
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01c|v11-01c]]
+
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jun 2015)
+
  
|-valign="top"
+
|}
|Hg Ocean MLD bug fixes
+
 
|Amanda Giang (MIT)
+
== Prioritized and in the queue ==
|
+
 
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01c|v11-01c]]
+
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"
|Hg Ocean rate coefficients (as an option, not default)
+
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
|Shaojie Song (MIT)
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
 +
|Chemistry
 +
|TBD
 +
|Delivered<br>June 2023
 
|
 
|
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01c|v11-01c]]
+
*[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"
+
|Hg Arctic process updates
+
|Jenny Fisher (Wollongong)
+
|
+
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01c|v11-01c]]
+
  
 
|-valign="top"
 
|-valign="top"
|Hg emission updates (NEI2011, NPRI2011, UNEP2010 with adjustments for in-plume reduction and emission controls)
+
|ALK4 & R4N2 chemistry
|Yanxu Zhang (Harvard)<br>Amanda Giang (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]
 
+
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., submitted 2023.]
|-bgcolor="#ccffff" valign="top"
+
!width="400px"|Structural/programming updates for HPC
+
!width="300px"|
+
!width="400px"|
+
  
 
|-valign="top"
 
|-valign="top"
|Structural updates for GEOS-Chem HP
+
|Mass flux regridding fix in MAPL
|[[GEOS-Chem Support Team]]<br>NASA/GMAO
+
|Tom Clune (GMAO)<br>Seb Eastham (MIT)
 +
|GCHP input regridding
 +
|Medium
 
|
 
|
*This will be an ongoing process that will occur simultaneously as the above science updates are brought into GEOS-Chem.
+
|
 
+
*[https://github.com/geoschem/GCHP/issues/377 GCHP Issue #377]
|-bgcolor="#ccffff" valign="top"
+
*'''Currently on hold, as the submitted update results in zero diff'''
!width="400px"|Documentation
+
!width="300px"|
+
!width="400px"|
+
  
 
|-valign="top"
 
|-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]]:
+
|New version of CEDS at 0.1 deg
*Naming convention used by GMAO
+
|Dandan Zhang (WashU)
*Version numbers corresponding to dates of met field data
+
|Emissions
|[[GEOS-Chem Support Team]]<br>NASA/GMAO
+
|Simple
 +
|Delivered
 
|
 
|
*In progress
+
*[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 by the authors.'''
  
 
|}
 
|}
  
--[[User:Bmy|Bob Y.]] ([[User talk:Bmy|talk]]) 14:38, 24 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
+
|PPN+hv, PPN+OH
|Barron Henderson (UF)
+
|Robert Ryan (UCL)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[Python code for GEOS-Chem|Python GEOS-Chem output processing and visualization package]]
+
|MBO
|Beno&icirc;t Bovy (U. Li&egrave;ge-Belgium)
+
|Michael Vermeuel (UMN)
 +
|Chemistry
 
|
 
|
*Users may download and test it and submit feedback to Benoit Bovy.
 
  
 
|-valign="top"
 
|-valign="top"
|Benchmark of stratosphere simulation
+
|Initial conditions for CH4 correcting background and stratospheric biases
|Dylan Jones (U. Toronto)
+
|Todd Mooring (Harvard)
 +
|Methane simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Benchmark for nested NA model
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
|Jun Wang (UNL)
+
|Bob Yantosca (Harvard)
 +
|Aerosols<br>Structural
 
|
 
|
 +
*Ongoing
  
 
|-valign="top"
 
|-valign="top"
|High-resolution regional emissions (to be implemented via HEMCO)
+
|Re-binning of off-line sea salt and dust for use in TOMAS
|Lin Zhang (PKU)<br>Yuxuan Wang (Texas A&M)
+
|Betty Croft (Dalhousie)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Flexchem
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
|Mike Long (Harvard)
+
|Betty Croft (Dalhousie)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to isoprene chemistry, includes:
+
|ML algorithms for bulk aerosols
*Fast photolysis of carbonyl nitrates
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
*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
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
|Dylan Jones (U. Toronto)
+
|Shixian Zhai (Harvard)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Hg code updates (emissions, chemistry, ocean, land)
+
|Updates to Hodzic SOA scheme
|[[Hg and POPs Working Group]]
+
|Jared Brewer (Harvard)
 +
|Aerosols
 
|
 
|
  
 +
|-valign="top"
 +
|Automated reduction in isoprene scheme
 +
|Dan Westervelt (Lamont-Doherty)
 +
|Aerosols
 +
|
  
 
|-valign="top"
 
|-valign="top"
|Lightning NOx plume chemistry
+
|Brown carbon chemsitry
|Alicia Gressent (U. Paul Sabatier)
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Nested CO2, CH4, Hg, TOMAS, adjoint, etc.
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
|[[Nested Model Working Group]]
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
 +
|Convection
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updated nighttime isoprene chemistry
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
|Rebecca Schwantes (Caltech)
+
|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"
|Updated organic deposition
+
|Updated biomass burning emission factors and species
|Katie Travis (Harvard)<br>Jenny Fisher (U. Wollongong)
+
|Tess Carter (MIT)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|EPA-derived BC/OA emissions over US (1990-2012)
+
|Updated offline sea salt emissions
|David Ridley (MIT)
+
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Update density of BC to 1.8 and add absorption enhancement factor in input.geos
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
|Xuan Wang (MIT)
+
|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"
|Observation operators for CO2 OCO-2 in GEOS-Chem Adjoint
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
|Kevin Bowman (JPL)<br>Dylan Jones (U. Toronto)
+
|Bob Yantosca (Harvard)
 +
|Model performance
 
|
 
|
 +
*Ongoing (will be done as time allows)
  
 
|-valign="top"
 
|-valign="top"
|Observation operators for CH4 GOSAT, SCIAMACHY in GEOS-Chem Adjoint
+
|Retire all BPCH diagnostics
|Dylan Jones (U. Toronto)<br>Alex Turner (Harvard)
+
|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"
|Remove dependence of species drydep on HNO3 drydep
+
|Assess memory leak in GCHP
|Katie Travis (Harvard)<br>Jenny Fisher (U. Wollongong)
+
|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"
|Arctic Hg cycling
+
|Hybrid MPI-OpenMP in GCHP
|Jenny Fisher (U. Wollongong)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
 +
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|MOSAIC implementation
+
|Improve run directory templating and creation with init_rd.sh and shared directories
|Sebastian Eastham (MIT)
+
|Jourdan He (WashU)
 +
|Run directories
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updated documentation on setting up new nested domains
+
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
|Lin Zhang (PKU)<br>Yuxuan Wang (Texas A&M)
+
|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.
 +
 +
{| 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"
|Nested model publication wiki page
+
|Snow / Icy Bromine
|Jun Wang (UNL)
+
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Past and future fire emissions under RCPs
+
|Monoterpene oxidation scheme
|Loretta Mickley (Harvard)<br>Yuhang Wang (GIT)<br>Shiliang Wu (MT)
+
|Jessica Haskins (MIT)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Halogen chemistry updates
+
|Fire related VOCs including furans
|Tom&aacute;s Sherwen (York)<br>Johan Schmidt (Harvard)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Lu Hu (UMT)<br>Lixu Jin (UMT)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|QFED fire emissions (up to 2014)
+
|Extension of UCX into the mesosphere
|Christoph Keller (Harvard)<br>Katie Travis (Harvard)
+
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[Implementation of consistent units in GEOS-Chem|Uniformity of units]]
+
|Methane flux ingestion
|[[GEOS-Chem Support Team]]
+
|Eloise Marais (UCL)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Update SO2 scavenging in convective updrafts for consistency
+
|Dust non-sphericity impacts on surface chem and optical properties
|Duncan Fairlie (NASA/LARC)  
+
|Inderjeet Singh (WashU)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[Aerosols_Working_Group#Sedimentation_of_stratospheric_aerosols|Sedimentation of stratospheric aerosols]]
+
|Size-resolved stratospheric aerosol
|Sebastian Eastham (MIT)
+
|Seb Eastham (MIT)
 +
|Aerosols
 
|
 
|
  
|}
+
|-valign="top"
 
+
|Extend aerosol settling
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:39, 20 August 2015 (UTC)
+
|Eloise Marais (UCL)
 
+
|Aerosols
=== Over the horizon (6-12 months) ===
+
|
 
+
{| border=1 cellspacing=0 cellpadding=5
+
|- bgcolor="#cccccc"
+
!width="400px"|Item
+
!width="300px"|Author(s)
+
!width="400px"|Status
+
  
 
|-valign="top"
 
|-valign="top"
|A snow NOx source from deep snowpack
+
|Stratospheric aerosol APM
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Fangqun Yu (SUNY)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dust emissions at nested-grid resolution
+
|Plume-in-grid model
|Yuxuan Wang (Texas A&M)<br>Jun Wang (UNL)
+
|Hongwei Sun (Harvard)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive meteorological fields with higher resolution (for RCPs)
+
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
|Lee Murray (NASA GISS/LDEO)
+
|Lee Murray (Rochester)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Land cover module in GEOS-Chem
+
|Seb aircraft emissions beyond recent 2019 update
|Jeffrey Geddes (MIT)<br>Michael Long (Harvard)
+
|Seb Eastham (MIT)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Improved lightning emission scheme
+
|FRP-based fire emsisions for eastern US at 0.2 deg
|Lee Murray (NASA GISS/LDEO)
+
|Charlie Fite (FSU)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive high resolution wind fields for sea salt
+
|Hg iodine chemistry
|[[GEOS-Chem Support Team]]
+
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Hg simulation in GCHP
|Carey Friedman (MIT)<br>Helen Amos (Harvard)
+
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|VBS SOA option
+
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
|Rokjin Park (SNU)
+
|Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Kz eddy mixing scheme
+
|Dry deposition diagnostics by land cover
|Karen Yu (Harvard)
+
|Holly Nowell (FSU)
 +
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Update HCN simulation, implement in standard model via Flexchem
+
|Dry deposition process diagnostics
|Jenny Fisher (U. Wollongong)
+
|Holly Nowell (FSU)
 +
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Merge standard simulation with specialty simulations for OVOC, acids, aromatics, dicarbonyls, terpenes
+
|Isotope simulation for CO and CH4 in GCHP
|Dylan Millet (UMN)<br>Xin Chen (UMN)
+
|Lee Murray (Rochester)
 +
|Carbon simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Cl chemistry updates
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
|Lyatt Jaegl&eacute; (UW)
+
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
 +
|Emissions<br>CH4 simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Automate redistribution of NOx in HEMCO
+
|Modularization of aerosols code for interface with GOCART in GEOS
|Lee Murray (NASA GISS/LDEO)
+
|Christoph Keller (GMAO)
 +
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Injection height for fire emissions
+
|Improve load balancing in GCHP
|Emily Fischer (CSU)
+
|Seb Eastham (MIT)
 +
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Option for daily OH, etc. for Hg simulation
+
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
|Noelle Selin (MIT)
+
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
 +
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Surface ocean Hg boundary conditions from MITgcm
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
|Hannah Horowitz (Harvard)
+
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
 +
|Transport
 
|
 
|
  
|-
+
|-valign="top"
|NetCDF output: Flexible diagnostic package and tracer restart file
+
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
|[[GEOS-Chem Support Team]]
+
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
 +
|Transport
 
|
 
|
  
 
|}
 
|}
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:56, 9 June 2015 (UTC)
+
== 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="300px"|Author(s)
+
!width="200px"|Contributor(s)
!width="400px"|Status
+
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Global GEOS-FP native-resolution met fields to enable flexible nested domains
+
|Updates to Aromatic chemistry
|Jintai Lin (PKU)<br>Lin Zhang (PKU)<br>[[GEOS-Chem Support Team]]
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|DMS oxidation scheme updating
+
|Nitrate photolysis
|Tom Breider (Harvard)<br>Becky Alexander (U. Washington)<br>[[Chemistry Issues|Oxidants and Chemistry Working Group]]
+
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dynamics of stomatal conductance in dry deposition
+
|In aerosol chemistry Halogens
|Amos Tai (CUHK)
+
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|New dry deposition module (Zhang et al., 2013)
+
|Benchmark box model of GC Chemistry
|Jintai Lin (PKU)
+
|Katie Travis (NASA)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Bi-directional NH3 emissions
+
|Alkyl nitrates Alk7, PHAN
|Juliet Zhu (CSU)<br>Lin Zhang (PKU)
+
|Katie Travis (NASA)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Arsenic simulation
+
|Add stratospheric ozone species to full-chemistry simulations
|Shiliang Wu (MT)
+
|Lee Murray (Rochester)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Hg benchmark updates for atmosphere and ocean
+
|Perchlorate chemistry
|Hannah Horowitz (Harvard)<br>Viral Shah (UW)<br>Shaojie Song (MIT)
+
|Yuk Chun Chan (UWAB)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Emission scheme of dust: subgrid wind variation to remove resolution dependence and better interannual variability
+
|Explicit heterogeneous sulfate chemistry
|David Ridley (MIT)
+
|Katie Travis (NASA)<br>Becky Alexander (UT)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Ozone damage to vegetation
+
|HOx and ozone "emissions" from lightning as option in model to play with
|Amos Tai (CUHK)
+
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Implement biogenic emissions of ethane, propane
+
|Sea salt aerosol from sea ice leads
|Zitely Tzompa (CSU)
+
|Hannah Horowitz (U. Illinois)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Global evaluation of using LWC and ICW variables from met fields
+
|Drought-stress algorithm
|[http://web.atmos.ucla.edu/~qli/trop/Home.html UCLA group]<br>Hongyu Liu (NIA/NASA LARC)<br>Betty Croft (Dalhousie)
+
|Wei Li (U. Houston)
 
|
 
|
 
|-valign="top"
 
|Joint CO/CO2/CH4 forward model simulation
 
|Nicholas Deutscher (U. Wollongong)
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Subgrid scale precipitation variability
+
|Biomass burning injection height profiles
|[http://acmg.seas.harvard.edu/ Harvard group]
+
|Inderjeet Singh (WashU)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dry deposition: Update the ozone dry deposition scheme
+
|OCIM integration
|Murphy group (UofT)
+
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
 
|
 
|
 
|-valign="top"
 
|Country-based weekend/weekday variability for EDGAR v4.2
 
|Lee Murray (NASA GISS/LDEO)<br>Christoph Keller (Harvard)
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Sea salt emission from sea ice
+
|Updating landcover products in GEOS-Chem
|Jiayue Huang (UW)
+
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
 +
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Resolution-independent lightning NOx scaling
+
|Dry deposition physical improvement
|Lee Murray (NASA GISS/LDEO)
+
|Chris Holmes (FSU)
 +
|Dry deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Historical Hg emissions (1850-present)
+
|TOMAS WRF-GC in regional Thailand simulation
|Hannah Horowitz (Harvard)
+
|Win Trivitayanurak (Chulalongkorn U)
|
+
|Aerosols
 
+
|-valign="top"
+
|Nested-grid model with GEOS-FP at 1/2&deg; x 5/8&deg; resolution
+
|[[Nested Model Working Group]]
+
|
+
 
+
|-valign="top"
+
|TNO emissions over Europe (7km)
+
|[http://acmg.seas.harvard.edu/geos/geos_people.html#athens Greece team]
+
|
+
 
+
|-valign="top"
+
|Re-evaluation of SST dependence of sea salt emissions
+
|Jiayue Huang (UW)
+
 
|
 
|
  
 
|}
 
|}
 
--[[User:Melissa Payer|Melissa Sulprizio]] 14:08, 11 May 2015 (EDT)
 

Revision as of 20:02, 16 April 2024

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

Merged and awaiting release

See the links below for items merged and awaiting release.

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

Feature integration in progress

Features listed in this table are actively being integrated into GEOS-Chem by the GEOS-Chem Support Team. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.

Feature Contributor(s) Model scope Ease of implementation Notes and References
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
Parameterization of SNA and OM dry size Haihui Zhu (WashU) Aerosols Medium
New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa)
Emissions Medium
Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4 Lizzie Lundgren (Harvard) GC-Classic Medium
Replace ISORROPIA with HETPv1.0 Lizzie Lundgren (Harvard)
Seb Eastham (ICL)
Aerosol thermodynamics Medium
Only convert units for species that need it Bob Yantosca (Harvard) Unit conversions Medium
Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard)
Diagnostics Medium

Prioritized and in the queue

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

Feature Contributor(s) Model scope Ease of implementation Delivery status Notes and References
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
Mass flux regridding fix in MAPL Tom Clune (GMAO)
Seb Eastham (MIT)
GCHP input regridding Medium
  • GCHP Issue #377
  • Currently on hold, as the submitted update results in zero diff
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple Delivered
  • geos-chem issue #1745
  • Currently on hold while an issue with seasonality in the new CEDS data is being investigated by the authors.

Ready to go in

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

Feature Contributor(s) Model scope Delivery status Notes and References
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
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