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

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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 Oct 2016 ==
+
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  
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+
|-bgcolor="#CCCCCC"
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=== Awaiting release ===
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!width="300px"|Mergeable at any time
−
 
+
!width="200px"|Version in development
−
{| border=1 cellspacing=0 cellpadding=5
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−
|- bgcolor="#cccccc"
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−
!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)
+
−
*A [[GEOS-Chem_v11-01#Incorrect_incorporation_of_moisture_in_GEOS-Chem_air_quantities|fix to remove the moisture signature]] was included in [[GEOS-Chem v11-01#v11-01h|v11-01h]] (approved 11 Oct 2015)
+
  
−
|-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)
 
 
|
 
|
−
*Introduced in [[GEOS-Chem v11-01#v11-01d|v11-01d]] (approved 12 Dec 2015)
+
*[https://github.com/geoschem/GCHP/issues/377 GCHP Issue #377]
−
*Modified in [[GEOS-Chem v11-01#v11-01e|v11-01e]] (approved 04 Jan 2016)
+
*'''Currently on hold, as the submitted update results in zero diff'''
  
 
|-valign="top"
 
|-valign="top"
−
|[[FlexChem]]
+
|New version of CEDS at 0.1 deg
−
|Mike Long (Harvard), [[GCST]]
+
|Dandan Zhang (WashU)
 +
|Emissions
 +
|Simple
 +
|Delivered
 
|
 
|
−
*Included in [[GEOS-Chem v11-01#v11-01g|v11-01g]] (approved 28 Sep 2016)
+
*[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.'''
−
|-bgcolor="#ccffff" valign="top"
+
−
!width="400px"|Structural/programming updates
+
−
!width="300px"|
+
−
!width="400px"|
+
−
 
+
−
|-valign="top"
+
−
|[[GEOS-Chem timers]]
+
−
|Matt Yannetti (GCST)
+
−
|
+
−
*Included in [[GEOS-Chem v11-01#v11-01c|v11-01c]] (approved 14 Sep 2015)
+
−
 
+
−
|-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]] (approved 14 Sept 2015)
+
−
*Full integration of MERRA-2 in GEOS-Chem (i.e. making "full-chemistry" simulations compatible with MERRA-2) was implemented in [[GEOS-Chem v11-01#v11-01f|v11-01f]] (approved 16 Apr 2016)
+
−
 
+
−
|-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.
+
  
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 17:56, 18 October 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
−
|-valigh="top"
+
!width="300px"|Notes and References
−
|[[New_isoprene_scheme#Set_ACTA_and_HCOOH_to_active_in_globchem.dat|Set ACTA and HCOOH to active]]
+
−
|Katie Travis (Harvard)
+
−
|
+
−
*Delivered to GCST
+
  
 
|-valign="top"
 
|-valign="top"
−
|Halogen chemistry updates
+
|KORUS-AQ emissions for East Asia (as an option)
−
|Tom&aacute;s Sherwen (York)<br>Johan Schmidt (Harvard)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Katie Travis (NASA)
 +
|Emissions
 +
|Simple
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Updates_in_JPL_Publication_15-10|Updating chemistry rate constants based on ''JPL Publication 15-10'']]
+
|Geologic emission of ethane and propane
−
|Barron Henderson (U. Florida)<br>Mat Evans (U. York)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Matthew Rowlinson and Mat Evans(York)
 +
|Emissions
 +
|Delivered<br>Jan 2023
 
|
 
|
 +
*Global source from https://doi.org/10.1038/s41561-018-0073-0 with spatial distribution from https://doi.org/10.5194/essd-11-1-2019
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3a: Output diagnostics in NetCDF format]]  
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
−
|[[GCST]]
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 +
|Science
 +
|Delivered<br>Feb 2021
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3b: Updates to eliminate differences between single and multi-segmented GEOS-Chem runs]]
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
−
|[[GCST]], Christoph Keller
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
 +
|Emissions
 +
|Delivered<br>Jul 2021
 
|
 
|
 +
*Data involves many files- need to think about temporal frequency
  
 
|-valign="top"
 
|-valign="top"
−
|[[PAN|PAN updates]]
+
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
−
|Emily Fischer (CSU)
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
 +
|Chemistry
 +
|Delivered<br>June 2023
 
|
 
|
−
*Delivered to GCST (May 2013)
+
*[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"
−
|[[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
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|Organic acids (RCOOH)
−
|Fabien Paulot (NOAA/GFDL)
+
|Katie Travis (NASA)
 +
|Chemistry
 +
|Not delivered
 
|
 
|
−
*Data files delivered to GCST (Jan 2016)
 
−
*Needs to be implemented via HEMCO
 
  
 
|-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]]
+
|Improve carbon & nitrogen conservation in reactions
−
|Xuan Wang (MIT)
+
|Kelvin Bates (Harvard)
 +
|Chemistry
 +
|Not delivered
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jan 2016)
 
  
 
|-valign="top"
 
|-valign="top"
−
|Species Database Phase 3:
+
|Blowing snow sea salt in TOMAS
−
*Harmonizing Henry's Law coefficients across wet and dry deposition
+
|Betty Croft (Dalhousie)
−
|[[GCST]]
+
|Aerosols
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem_tracer_units|Uniformity of units]]
+
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
−
|Lizzie Lundgren ([[GCST]])
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
 +
|Hg simulation
 +
|Not delivered
 
|
 
|
−
*Phase 2 (unit uniformity throughout chemistry) to be implemented after Flexchem
 
−
*Phase 3 (unit uniformity in some specialty simulations) will be implemented in pieces with input from 3rd party developers
 
−
*Phase 4 (removal of area and area-dependent State_Met variables) will be ongoing
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Metal_catalyzed_oxidation_of_SO2|Metal catalyzed oxidation of SO2]] (as a switch)
+
|WRF-GC Hg simulation
−
|Becky Alexander (UW)
+
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation<br>WRF-GC
 +
|Not delivered
 
|
 
|
−
*'''''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"
−
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Temporary fix to remove SO2 scavenging in convective updrafts]]
+
|Updated HgII gas-partical partitioning
−
|Duncan Fairlie (NASA/LARC)  
+
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
 +
|Hg simulation
 +
|Not delivered
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Nov 2015)
+
*Should be option, not default
−
*'''''Duncan Fairlie wrote on 03 Mar 2016:'''''
+
−
:I don't think my fix for this issue is ready for prime time. I get chimneys of essentially unscavenged SO2 extending into the UTLS during Asian monsoon, leading to too much sulfate aloft. I think replacing the instantaneous titration of H2O2 in the standard code with the correct oxidation of SO2 by H2O2 (and O3?) is necessary.
+
  
 
|-valign="top"
 
|-valign="top"
−
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Update SO2 scavenging in convective updrafts for consistency]]
+
|Dry deposition to F90 (readability)
−
|Duncan Fairlie (NASA/LARC)  
+
|Chris Holmes (FSU)
 +
|Dry deposition
 +
|Not delivered
 
|
 
|
  
−
|-valign="top"
+
|}
−
|Sub-grid non-linear chemistry of NOx-O3 system related to lightning NOx emissions
+
−
|Alicia Gressent (MIT)
+
−
|
+
  
−
|-valign="top"
+
== Almost there (< 6 months) ==
−
|Fix to direct/diffuse radiation
+
 
−
|Katie Travis (Harvard)
+
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
 +
|- bgcolor="#cccccc"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[[Dry_deposition#Fix_for_NO3_.2B_ISOP_product|Fix for NO3 + ISOP product]]
+
|PPN+hv, PPN+OH
−
|Katie Travis (Harvard)
+
|Robert Ryan (UCL)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Update OH + NO2 rate
+
|MBO
−
|Barron Henderson (UF)
+
|Michael Vermeuel (UMN)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate and nitrate simulation]]
+
|Initial conditions for CH4 correcting background and stratospheric biases
−
|Becky Alexander (UW)
+
|Todd Mooring (Harvard)
 +
|Methane simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Lightning update based on Travis et al. (submitted) and Zhang et al. (2014, ACP)
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
−
|Katie Travis (Harvard)
+
|Bob Yantosca (Harvard)
 +
|Aerosols<br>Structural
 
|
 
|
 +
*Ongoing
  
 
|-valign="top"
 
|-valign="top"
−
|Add aqueous isoprene uptake to SOA scheme
+
|Re-binning of off-line sea salt and dust for use in TOMAS
−
|Eloise Marais (Harvard)
+
|Betty Croft (Dalhousie)
 +
|Aerosols
 
|
 
|
−
*Delivered to GCST (Jul 2016)
 
  
 
|-valign="top"
 
|-valign="top"
−
|Enhance default GEOS-Chem simple SOA
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
−
|Aerosol Working Group Chairs
+
|Betty Croft (Dalhousie)
 +
|Aerosols
 
|
 
|
−
 
−
 
−
 
−
|}
 
−
 
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 17:56, 18 October 2016 (UTC)
 
−
 
−
=== Almost there (< 6 months) ===
 
−
 
−
{| border=1 cellspacing=0 cellpadding=5
 
−
|- bgcolor="#cccccc"
 
−
!width="400px"|Item
 
−
!width="300px"|Author(s)
 
−
!width="400px"|Status
 
  
 
|-valign="top"
 
|-valign="top"
−
|Update MODIS LAI fields through 2015
+
|ML algorithms for bulk aerosols
−
|Barron Henderson (UF)
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Python code for GEOS-Chem|Python GEOS-Chem output processing and visualization package]]
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
−
|Beno&icirc;t Bovy (U. Li&egrave;ge-Belgium)
+
|Shixian Zhai (Harvard)
 +
|Aerosols
 
|
 
|
−
*Users may download and test it and submit feedback to Benoit Bovy.
 
  
 
|-valign="top"
 
|-valign="top"
−
|Benchmark of stratosphere simulation
+
|Updates to Hodzic SOA scheme
−
|Dylan Jones (U. Toronto)
+
|Jared Brewer (Harvard)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Benchmark for nested NA model
+
|Automated reduction in isoprene scheme
−
|Jun Wang (UNL)
+
|Dan Westervelt (Lamont-Doherty)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|High-resolution regional emissions (to be implemented via HEMCO)
+
|Brown carbon chemsitry
−
|Lin Zhang (PKU)<br>Yuxuan Wang (Texas A&M)
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to isoprene chemistry, includes:
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
−
*Fast photolysis of carbonyl nitrates
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
−
*Aerosol uptake of organic nitrates
+
|Convection
−
|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
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
−
|Dylan Jones (U. Toronto)
+
|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"
−
|Hg code updates (emissions, chemistry, ocean, land)
+
|Updated biomass burning emission factors and species
−
|[[Hg and POPs Working Group]]
+
|Tess Carter (MIT)
 +
|Emissions
 
|
 
|
−
 
  
 
|-valign="top"
 
|-valign="top"
−
|Lightning NOx plume chemistry
+
|Updated offline sea salt emissions
−
|Alicia Gressent (U. Paul Sabatier)
+
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Nested CO2, CH4, Hg, TOMAS, adjoint, etc.
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
−
|[[Nested Model Working Group]]
+
|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"
−
|Updated nighttime isoprene chemistry
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
−
|Rebecca Schwantes (Caltech)
+
|Bob Yantosca (Harvard)
 +
|Model performance
 
|
 
|
 +
*Ongoing (will be done as time allows)
  
 
|-valign="top"
 
|-valign="top"
−
|Updated organic deposition
+
|Retire all BPCH diagnostics
−
|Katie Travis (Harvard)<br>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"
−
|EPA-derived BC/OA emissions over US (1990-2012)
+
|Assess memory leak in GCHP
−
|David Ridley (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"
−
|Observation operators for CO2 OCO-2 in GEOS-Chem Adjoint
+
|Hybrid MPI-OpenMP in GCHP
−
|Kevin Bowman (JPL)<br>Dylan Jones (U. Toronto)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
 +
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Observation operators for CH4 GOSAT, SCIAMACHY in GEOS-Chem Adjoint
+
|Improve run directory templating and creation with init_rd.sh and shared directories
−
|Dylan Jones (U. Toronto)<br>Alex Turner (Harvard)
+
|Jourdan He (WashU)
 +
|Run directories
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Remove dependence of species drydep on HNO3 drydep
+
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
−
|Katie Travis (Harvard)<br>Jenny Fisher (U. Wollongong)
+
|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"
−
|Arctic Hg cycling
+
|Snow / Icy Bromine
−
|Jenny Fisher (U. Wollongong)
+
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|MOSAIC implementation
+
|Monoterpene oxidation scheme
−
|Sebastian Eastham (MIT)
+
|Jessica Haskins (MIT)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updated documentation on setting up new nested domains
+
|Fire related VOCs including furans
−
|Lin Zhang (PKU)<br>Yuxuan Wang (Texas A&M)
+
|Lu Hu (UMT)<br>Lixu Jin (UMT)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Nested model publication wiki page
+
|Extension of UCX into the mesosphere
−
|Jun Wang (UNL)
+
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Past and future fire emissions under RCPs
+
|Methane flux ingestion
−
|Loretta Mickley (Harvard)<br>Yuhang Wang (GIT)<br>Shiliang Wu (MT)
+
|Eloise Marais (UCL)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|QFED fire emissions (up to 2014)
+
|Dust non-sphericity impacts on surface chem and optical properties
−
|Christoph Keller (Harvard)<br>Katie Travis (Harvard)
+
|Inderjeet Singh (WashU)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem tracer units|Uniformity of units]]
+
|Size-resolved stratospheric aerosol
−
|[[GEOS-Chem Support Team]]
+
|Seb Eastham (MIT)
 +
|Aerosols
 
|
 
|
−
*Phase 1 was completed in v11-01e (04 Jan 2016)
 
−
*Remaining phases will be started after FlexChem
 
  
 
|-valign="top"
 
|-valign="top"
−
|Update SO2 scavenging in convective updrafts for consistency
+
|Extend aerosol settling
−
|Duncan Fairlie (NASA/LARC)  
+
|Eloise Marais (UCL)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Aerosols_Working_Group#Sedimentation_of_stratospheric_aerosols|Sedimentation of stratospheric aerosols]]
+
|Stratospheric aerosol APM
−
|Sebastian Eastham (MIT)
+
|Fangqun Yu (SUNY)
 +
|Aerosols
 
|
 
|
−
 
−
|}
 
−
 
−
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 20:50, 17 February 2016 (UTC)
 
−
 
−
=== 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
+
|Plume-in-grid model
−
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Hongwei Sun (Harvard)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Dust emissions at nested-grid resolution
+
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
−
|Yuxuan Wang (Texas A&M)<br>Jun Wang (UNL)
+
|Lee Murray (Rochester)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Archive meteorological fields with higher resolution (for RCPs)
+
|Seb aircraft emissions beyond recent 2019 update
−
|Lee Murray (NASA GISS/LDEO)
+
|Seb Eastham (MIT)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Land cover module in GEOS-Chem
+
|FRP-based fire emsisions for eastern US at 0.2 deg
−
|Jeffrey Geddes (MIT)<br>Michael Long (Harvard)
+
|Charlie Fite (FSU)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Improved lightning emission scheme
+
|Hg iodine chemistry
−
|Lee Murray (NASA GISS/LDEO)
+
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Archive high resolution wind fields for sea salt
+
|Hg simulation in GCHP
−
|[[GEOS-Chem Support Team]]
+
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
−
|Carey Friedman (MIT)<br>Helen Amos (Harvard)
+
|Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|VBS SOA option
+
|Dry deposition diagnostics by land cover
−
|Rokjin Park (SNU)
+
|Holly Nowell (FSU)
 +
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Kz eddy mixing scheme
+
|Dry deposition process diagnostics
−
|Karen Yu (Harvard)
+
|Holly Nowell (FSU)
 +
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Update HCN simulation, implement in standard model via Flexchem
+
|Isotope simulation for CO and CH4 in GCHP
−
|Jenny Fisher (U. Wollongong)
+
|Lee Murray (Rochester)
 +
|Carbon simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Merge standard simulation with specialty simulations for OVOC, acids, aromatics, dicarbonyls, terpenes
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
−
|Dylan Millet (UMN)<br>Xin Chen (UMN)
+
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
 +
|Emissions<br>CH4 simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Cl chemistry updates
+
|Modularization of aerosols code for interface with GOCART in GEOS
−
|Lyatt Jaegl&eacute; (UW)
+
|Christoph Keller (GMAO)
 +
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Automate redistribution of NOx in HEMCO
+
|Improve load balancing in GCHP
−
|Lee Murray (NASA GISS/LDEO)
+
|Seb Eastham (MIT)
 +
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Injection height for fire emissions
+
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
−
|Emily Fischer (CSU)
+
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
 +
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Option for daily OH, etc. for Hg simulation
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
−
|Noelle Selin (MIT)
+
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
 +
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Surface ocean Hg boundary conditions from MITgcm
+
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
−
|Hannah Horowitz (Harvard)
+
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
−
|
+
|Transport
−
 
+
−
|-
+
−
|NetCDF output: Flexible diagnostic package and tracer restart file
+
−
|[[GEOS-Chem Support Team]]
+
 
|
 
|
  
 
|}
 
|}
  
−
--[[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)
+
−
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--[[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
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