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

From Geos-chem
Jump to: navigation, search
(→‎Ready to go in)
(→‎Prioritized and in the queue)
 
Line 1: Line 1:
−
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"
−
=== Awaiting release ===
+
!width="300px"|Mergeable at any time
−
 
+
!width="200px"|Version in development
−
{| border=1 cellspacing=0 cellpadding=5
+
−
|- bgcolor="#cccccc"
+
−
!width="400px"|Item
+
−
!width="300px"|Author(s)
+
−
!width="400px"|Status
+
−
 
+
−
|- bgcolor="#ccffff"
+
−
!width="400px"|Science updates
+
−
!width="300px"|
+
−
!width="400px"|
+
  
 
|-valign="top"
 
|-valign="top"
−
|[[Air_Quantity_Updates_for_v11-01|Correction for wet/dry pressure]]
+
|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
−
|Lizzie Lundgren (Harvard)<br>Meemong Lee (JPL)
+
|align="center"|'''[[GEOS-Chem 14.4.0]]'''
−
|
+
−
*Included in [[GEOS-Chem v11-01#v11-01a|v11-01a]] (approved 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"
+
|}
−
|[[Sulfate_aerosols#Update_DMS_climatology_to_Lana|Update DMS climatology to Lana]]
+
−
|Tom Breider (Harvard)
+
−
|
+
−
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]] (approved 19 Aug 2015)
+
  
−
|-valign="top"
+
== Feature integration in progress ==
−
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Impaction scavenging for hydrophobic BC]]
+
−
|Qiaoqiao Wang (Max Planck Institute)
+
−
|
+
−
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]] (approved 19 Aug 2015)
+
  
−
|-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.
−
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Homogeneous IN removal]]
+
−
|Qiaoqiao Wang (Max Planck Institute)
+
−
|
+
−
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]] (approved 19 Aug 2015)
+
  
−
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
−
|[[Aerosol emissions#Online emission of marine primary organic aerosol .28POA.29|Online emission of marine primary organic aerosol (POA)]]
+
|-bgcolor="#CCCCCC"
−
|Brett Gantt (NCSU)<br>Matthew Johnson (NASA Ames)
+
!width="200px"|Feature
−
|
+
!width="200px"|Contributor(s)
−
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]] (approved 19 Aug 2015)
+
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[[Aerosols_Working_Group#Organic_Aerosol_Density_.28v.10-01.29|Density of OA update]]
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
−
|Melanie Hammer (Dalhousie)<br>Elo&iuml;se Marais (Harvard)
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
 +
|Emissions
 +
|Simple
 
|
 
|
−
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]] (approved 19 Aug 2015)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Aerosol_optical_properties#Implementation_of_optical_properties_for_brown_carbon|Addition of BrC UV absorption to address impacts on OH]]
+
|[https://github.com/geoschem/geos-chem/issues/1747 Parameterization of SNA and OM dry size]
−
|Melanie Hammer (Dalhousie)
+
|Haihui Zhu (WashU)
 +
|Aerosols
 +
|Medium
 
|
 
|
−
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]] (approved 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"
−
|[[Mineral_dust_aerosols#Surface_chemistry_on_dust|Acid uptake on dust aerosols]]
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
−
|T. Duncan Fairlie (NASA/LARC)
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
 +
|Emissions
 +
|Medium
 
|
 
|
−
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]] (approved 19 Aug 2015)
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-valign="top"
−
|[[Mineral_dust_aerosols#Improved_dust_size_distribution_scheme|Improved dust size distribution scheme]]
+
|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
−
|Li Zhang (Colorado U.)<br>Daven Henze (Colorado U.)
+
|Lizzie Lundgren (Harvard)
 +
|GC-Classic
 +
|Medium
 
|
 
|
−
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]] (approved 19 Aug 2015)
+
*[https://github.com/geoschem/HEMCO/issues/18 hemco issue #18]
  
 
|-valign="top"
 
|-valign="top"
−
|[[POPs_simulation#Updates_to_PAH_code|Updates to PAH code]]
+
|Replace ISORROPIA with [https://gmd.copernicus.org/articles/17/2197/2024/ HETPv1.0]
−
|Carey Friedman (MIT)
+
|Lizzie Lundgren (Harvard)<br>Seb Eastham (ICL)
 +
|Aerosol thermodynamics
 +
|Medium
 
|
 
|
−
*Included in [[GEOS-Chem v11-01#v11-01c|v11-01c]] (approved 14 Sep 2015)
+
*[https://github.com/geoschem/geos-chem/issues/2235 geos-chem issue #2235]
−
 
+
  
 
|-valign="top"
 
|-valign="top"
−
|[[Mercury#Hg ocean MLD bug fixes|Hg Ocean MLD bug fixes]]
+
|Only convert units for species that need it
−
|Amanda Giang (MIT)
+
|Bob Yantosca (Harvard)
 +
|Unit conversions
 +
|Medium
 
|
 
|
−
*Included in [[GEOS-Chem v11-01#v11-01c|v11-01c]] (approved 14 Sep 2015)
+
*[https://github.com/geoschem/geos-chem/pull/2072 geos-chem PR #2072]
−
 
+
  
 
|-valign="top"
 
|-valign="top"
−
|[[Mercury#Hg ocean rate coefficients|Hg Ocean rate coefficients]] (as an option, not default)
+
|Capture all trop and PBL height changes in budget diagnostics
−
|Shaojie Song (MIT)
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
 +
|Diagnostics
 +
|Medium
 
|
 
|
−
*Included in [[GEOS-Chem v11-01#v11-01c|v11-01c]] (approved 14 Sep 2015)
+
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
  
 +
|}
  
−
|-valign="top"
+
== Prioritized and in the queue ==
−
|[[Mercury#Updates_to_Arctic_Hg_processes|Hg Arctic process updates]]
+
−
|Jenny Fisher (Wollongong)
+
−
|
+
−
*Included in [[GEOS-Chem v11-01#v11-01c|v11-01c]] (approved 14 Sep 2015)
+
  
 +
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
  
−
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
−
|[[Mercury#Hg emission updates|Hg emission updates (NEI2011, NPRI2011, UNEP2010 with adjustments for in-plume reduction and emission controls)]]
+
|-bgcolor="#CCCCCC"
−
|Yanxu Zhang (Harvard)<br>Amanda Giang (MIT)
+
!width="200px"|Feature
−
|
+
!width="200px"|Contributor(s)
−
*Included in [[GEOS-Chem v11-01#v11-01c|v11-01c]] (approved 14 Sep 2015)
+
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="100px"|Delivery status
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#CO2_direct_effect_on_isoprene_emissions|CO2 direct effect on isoprene emissions]]
+
|ALK4 & R4N2 chemistry
−
|Amos Tai (CUHK)
+
|Jared Brewer (UMN)
 +
|Chemistry
 +
|TBD
 +
|Not delivered
 
|
 
|
−
*Included in [[GEOS-Chem v11-01#v11-01d|v11-01d]] (approved 12 Dec 2015)
+
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
 +
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., 2023.]
  
 
|-valign="top"
 
|-valign="top"
−
|[[Organics Working Group#Criegee intermediates|Criegee intermediates]]
+
|Mass flux regridding fix in MAPL
−
|Dylan Millet (U. Minnesota)<br>Elo&iuml;se Marais (Harvard)
+
|Tom Clune (GMAO)<br>Seb Eastham (MIT)
 +
|GCHP input regridding
 +
|Medium
 
|
 
|
−
*Included in [[GEOS-Chem v11-01#v11-01d|v11-01d]] (approved 12 Dec 2015)
 
−
 
−
|-valign="top"
 
−
|[[GEOS-Chem species database|Developing a common data structure to contain Henry's law constants and other relevant parameters for each species]]
 
 
|
 
|
−
[[GEOS-Chem Support Team]]<br>Katie Travis (Harvard)
+
*[https://github.com/geoschem/GCHP/issues/377 GCHP Issue #377]
−
|
+
*'''Currently on hold, as the submitted update results in zero diff'''
−
*Introduced in [[GEOS-Chem v11-01#v11-01d|v11-01d]] (approved 12 Dec 2015)
+
−
*Modified in [[GEOS-Chem v11-01#v11-01e|v11-01e]] (approved 04 Jan 2016)
+
−
 
+
−
|-bgcolor="#ccffff" valign="top"
+
−
!width="400px"|Structural/programming updates
+
−
!width="300px"|
+
−
!width="400px"|
+
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem timers]]
+
|New version of CEDS at 0.1 deg
−
|Matt Yannetti (GCST)
+
|Dandan Zhang (WashU)
 +
|Emissions
 +
|Simple
 +
|Delivered
 
|
 
|
−
*Included in [[GEOS-Chem v11-01#v11-01c|v11-01c]] (approved 14 Sep 2015)
+
*[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.'''
−
|-valign="top"
+
−
|[[MERRA-2|Adding support for MERRA-2 meteorology]]
+
−
|[[GEOS-Chem Support Team]]
+
−
|
+
−
*Initial modifications for running with MERRA-2 were included in [[GEOS-Chem v11-01#v11-01c|v11-01c]], which was approved on 14 Sept 2015
+
−
*Full integration of MERRA-2 in GEOS-Chem (i.e. making "full-chemistry" simulations compatible with MERRA-2) is slated for inclusion in [[GEOS-Chem v11-01#v11-01f|v11-01f]]
+
−
**Scale factors for lightning, dust, and other emissions will need to be recomputed based on 1-year (or longer) simulations.
+
−
 
+
−
|-valign="top"
+
−
|Structural updates for GEOS-Chem HP
+
−
|[[GEOS-Chem Support Team]]<br>NASA/GMAO
+
−
|
+
−
*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
+
  
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 15:51, 27 January 2016 (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"
−
|FlexChem
+
|KORUS-AQ emissions for East Asia (as an option)
−
|Mike Long (Harvard)
+
|Katie Travis (NASA)
 +
|Emissions
 +
|Simple
 
|
 
|
−
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01g|v11-01g]]
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[PAN|PAN updates]]
+
|Geologic emission of ethane and propane
−
|Emily Fischer (CSU)
+
|Matthew Rowlinson and Mat Evans(York)
 +
|Emissions
 +
|Delivered<br>Jan 2023
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (May 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#v11-01h|v11-01h]]
+
  
 
|-valign="top"
 
|-valign="top"
−
|Halogen chemistry updates
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
−
|Tom&aacute;s Sherwen (York)<br>Johan Schmidt (Harvard)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 +
|Science
 +
|Delivered<br>Feb 2021
 
|
 
|
−
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01h|v11-01h]]
+
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
  
 
|-valign="top"
 
|-valign="top"
−
|[[Updates_in_JPL_Publication_15-10|Updating chemistry rate constants based on ''JPL Publication 15-10'']]
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
−
|Barron Henderson (U. Florida)<br>Mat Evans (U. York)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
−
|
+
|Emissions
−
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01h|v11-01h]]
+
|Delivered<br>Jul 2021
−
|-valign="top"
+
−
|[[NOx-Ox-HC-aerosol#Monthly mean surface distributions|Monthly mean surface methane distributions]]
+
−
|Lee Murray (NASA GISS/LDEO)
+
 
|
 
|
−
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01h|v11-01h]]
+
*Data involves many files- need to think about temporal frequency
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
−
|Fabien Paulot (NOAA/GFDL)
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
 +
|Chemistry
 +
|Delivered<br>June 2023
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jan 2016)
+
*[https://acp.copernicus.org/articles/22/12367/2022/acp-22-12367-2022.html Pérez-Peña, M.P. et al., ACP, 2022.]
−
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01h|v11-01h]]
+
*Implemented in v12.5, needs to be brought up to current version
  
 
|-valign="top"
 
|-valign="top"
−
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Temporary fix to remove SO2 scavenging in convective updrafts]]
+
|DMS Chemistry
−
|Duncan Fairlie (NASA/LARC)  
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
 +
|Chemistry
 +
|Not delivered
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Nov 2015)
 
−
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01h|v11-01h]]
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Aerosol_optical_properties#Add_BC_absorption_enhancement_factor|Update density of BC to 1.8 and add absorption enhancement factor in input.geos]]
+
|Organic acids (RCOOH)
−
|Xuan Wang (MIT)
+
|Katie Travis (NASA)
 +
|Chemistry
 +
|Not delivered
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jan 2016)
 
−
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01h|v11-01h]]
 
  
 
|-valign="top"
 
|-valign="top"
−
|Sub-grid non-linear chemistry of NOx-O3 system related to lightning NOx emissions
+
|Improve carbon & nitrogen conservation in reactions
−
|Alicia Gressent (MIT)
+
|Kelvin Bates (Harvard)
 +
|Chemistry
 +
|Not delivered
 
|
 
|
−
*Slated for inclusion after FlexChem
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Metal_catalyzed_oxidation_of_SO2|Metal catalyzed oxidation of SO2]] (as a switch)
+
|Blowing snow sea salt in TOMAS
−
|Becky Alexander (UW)
+
|Betty Croft (Dalhousie)
 +
|Aerosols
 +
|Not delivered
 
|
 
|
−
*Slated for inclusion after FlexChem
 
−
*'''''Becky Alexander wrote on 14 Sep 2015:'''''
 
−
:I've incorporated both the metal catalyzed chemistry and the sulfate isotopes into v10. The metal catalyzed chemistry is much slower than it is when run in v8 and v9. I still have not yet figured out why. I'm not comfortable adding this into the standard model until I figure it out. The emissions are quite different in v10 because of HEMCO, and metal catalyzed chemistry is very sensitive to emissions of primary anthropogenic sulfate, so that's my current hypothesis for the difference. I will probably not get back to debugging this until late October.
 
  
 
|-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]]) 15:51, 27 January 2016 (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"
−
|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"
−
|Observation operators for CO2 OCO-2 in GEOS-Chem Adjoint
+
|Updated biomass burning emission factors and species
−
|Kevin Bowman (JPL)<br>Dylan Jones (U. Toronto)
+
|Tess Carter (MIT)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Observation operators for CH4 GOSAT, SCIAMACHY in GEOS-Chem Adjoint
+
|Updated offline sea salt emissions
−
|Dylan Jones (U. Toronto)<br>Alex Turner (Harvard)
+
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Remove dependence of species drydep on HNO3 drydep
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
−
|Katie Travis (Harvard)<br>Jenny Fisher (U. Wollongong)
+
|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"
−
|Arctic Hg cycling
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
−
|Jenny Fisher (U. Wollongong)
+
|Bob Yantosca (Harvard)
 +
|Model performance
 
|
 
|
 +
*Ongoing (will be done as time allows)
  
 
|-valign="top"
 
|-valign="top"
−
|MOSAIC implementation
+
|Retire all BPCH diagnostics
−
|Sebastian Eastham (MIT)
+
|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"
−
|Updated documentation on setting up new nested domains
+
|Assess memory leak in GCHP
−
|Lin Zhang (PKU)<br>Yuxuan Wang (Texas A&M)
+
|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"
−
|Nested model publication wiki page
+
|Hybrid MPI-OpenMP in GCHP
−
|Jun Wang (UNL)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
 +
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Past and future fire emissions under RCPs
+
|Improve run directory templating and creation with init_rd.sh and shared directories
−
|Loretta Mickley (Harvard)<br>Yuhang Wang (GIT)<br>Shiliang Wu (MT)
+
|Jourdan He (WashU)
 +
|Run directories
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|QFED fire emissions (up to 2014)
+
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
−
|Christoph Keller (Harvard)<br>Katie Travis (Harvard)
+
|GCST?
−
|
+
|Documentation
−
 
+
−
|-valign="top"
+
−
|[[GEOS-Chem tracer units|Uniformity of units]]
+
−
|[[GEOS-Chem Support Team]]
+
−
|
+
−
*Phase 1 was completed in v11-01e (04 Jan 2016)
+
−
*Remaining phases will be started after FlexChem
+
−
 
+
−
|-valign="top"
+
−
|Update SO2 scavenging in convective updrafts for consistency
+
−
|Duncan Fairlie (NASA/LARC)
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|[[Aerosols_Working_Group#Sedimentation_of_stratospheric_aerosols|Sedimentation of stratospheric aerosols]]
+
−
|Sebastian Eastham (MIT)
+
 
|
 
|
  
 
|}
 
|}
  
−
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 20:50, 17 February 2016 (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)
 

Latest revision as of 20:55, 18 April 2024

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

Merged and awaiting release

See the links below for items merged and awaiting release.

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

Feature integration in progress

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

Feature Contributor(s) Model scope Ease of implementation Notes and References
Global continental chlorine (pCl and HCl) emissions Bingqing Zhang (Georgia Tech)
Pengfei Liu (Georgia Tech) 		Emissions Simple
Parameterization of SNA and OM dry size Haihui Zhu (WashU) Aerosols Medium
New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa) 		Emissions Medium
Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4 Lizzie Lundgren (Harvard) GC-Classic Medium
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
ALK4 & R4N2 chemistry Jared Brewer (UMN) Chemistry TBD Not delivered
Mass flux regridding fix in MAPL Tom Clune (GMAO)
Seb Eastham (MIT) 		GCHP input regridding Medium
  • GCHP Issue #377
  • Currently on hold, as the submitted update results in zero diff
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple Delivered
  • geos-chem issue #1745
  • Currently on hold while an issue with seasonality in the new CEDS data is being investigated by the authors.

Ready to go in

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

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

Almost there (< 6 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.

Feature Contributor(s) Model scope Notes and References
PPN+hv, PPN+OH Robert Ryan (UCL) Chemistry
MBO Michael Vermeuel (UMN) Chemistry
Initial conditions for CH4 correcting background and stratospheric biases Todd Mooring (Harvard) Methane simulation
Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism Bob Yantosca (Harvard) Aerosols
Structural
  • Ongoing
Re-binning of off-line sea salt and dust for use in TOMAS Betty Croft (Dalhousie) Aerosols
Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90 Betty Croft (Dalhousie) Aerosols
ML algorithms for bulk aerosols Arshad Nair (SUNY Albany)
Fangqun Yu (SUNY Albany) 		Aerosols
PM2.5 and PM10 calculations: aerodynamic vs geometric diameters Shixian Zhai (Harvard) Aerosols
Updates to Hodzic SOA scheme Jared Brewer (Harvard) Aerosols
Automated reduction in isoprene scheme Dan Westervelt (Lamont-Doherty) Aerosols
Brown carbon chemsitry Jingqiu Mao (U. Alaska)
Xuan Wang (CUHK) 		Aerosols
GEOS resolution and subgrid convection - Part 2 RAS parameter tuning Tailong He (Toronto)
Dylan Jones (Toronto)
Andrea Molod (NASA GMAO) 		Convection
High-res top-down TROPOMI-derived seasonal mean NOx emissions for China Jintai Lin (PKU) Emissions
  • Horizontal resolution: 5km, temporal resolution: JJA mean
  • monthly data will be available at a later stage; please contact us
Updated biomass burning emission factors and species Tess Carter (MIT) Emissions
Updated offline sea salt emissions Hongjian Weng (PKU)
Jintai Lin (PKU) 		Emissions
Canopy Physics Model Sam Silva (MIT) Emissions &
Science
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone Bob Yantosca (Harvard) Model performance
  • Ongoing (will be done as time allows)
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
Retrieved from "https://wiki.seas.harvard.edu/geos-chem/index.php?title=GEOS-Chem_model_development_priorities&oldid=53313"