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.
+
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
 +
 
 +
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.
  
 
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.
 
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.
  
== List of priorities as of Oct 2016 ==
+
== Priorities assigned to upcoming GEOS-Chem versions ==
  
The items listed below are in different stages of readiness and will be included in future versions of the model.
+
=== 12.8.0 ===
  
=== Awaiting release ===
+
<span style="color:darkorange">'''This version is currently in development. See [[GEOS-Chem_12#12.8.0|the ''GEOS-Chem 12'' wiki page]] for details.'''</span>
  
Items awaiting release will be part of the next version release of GEOS-Chem and are actively being incorporated into the standard model and benchmarked. More information on those items can be obtained on the [[GEOS-Chem v11-01]] wiki page.
+
=== 12.9.0 ===
  
=== Ready to go in ===
+
This version will require 1-month and 1-year full-chemistry benchmarks.
  
{| border=1 cellspacing=0 cellpadding=5
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{| border=1 cellspacing=0 cellpadding=5  
|- bgcolor="#cccccc"
+
|-bgcolor="#CCCCCC"
!width="400px"|Item
+
!width="500px"|Feature
!width="300px"|Author(s)
+
!width="200px"|Submitted by
!width="400px"|Status
+
!width="100px"|Type
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Halogen chemistry updates
+
!colspan="4" bgcolor="#CCFFFF"|Updates that WILL AFFECT the full-chemistry simulation
|Tom&aacute;s Sherwen (York)<br>Johan Schmidt (Harvard)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|
+
  
 
|-valign="top"
 
|-valign="top"
|[[Updates_in_JPL_Publication_15-10|Updating chemistry rate constants based on ''JPL Publication 15-10'']]
+
|[https://www.atmos-chem-phys.net/19/3981/2019/ Updated halogen chemistry]
|Barron Henderson (U. Florida)<br>Mat Evans (U. York)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Xuan Wang (Harvard)<br>Tomas Sherwen (York)<br>Shuting Zhai (UW)
 +
|Science
 
|
 
|
 +
*Delivered to GCST (Sep 2019)
 +
*Originally implemented in v11-02e and updated to 12.5.0 by Will Downs (GCST)
  
 
|-valign="top"
 
|-valign="top"
|[[PAN|PAN updates]]
+
|Fix incorrect rates in stratosphere for HOBr + SO3/HSO3
|Emily Fischer (CSU)
+
|Seb Eastham (MIT)
 +
|Science
 
|
 
|
*Delivered to GCST (May 2013)
+
*[https://github.com/geoschem/geos-chem/issues/138 geoschem/geos-chem #138]
  
 
|-valign="top"
 
|-valign="top"
|[[NOx-Ox-HC-aerosol#Monthly mean surface distributions|Monthly mean surface methane distributions]]
+
!colspan="4" bgcolor="#CCFFFF"|Updates that WILL NOT AFFECT the full-chemistry simulation
|Lee Murray (NASA GISS/LDEO)
+
|
+
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|Reduction of memory for HISTORY diagnostics with a species dimension
|Fabien Paulot (NOAA/GFDL)
+
|Bob Yantosca ([[GCST]])
 +
|Structural
 
|
 
|
*Data files delivered to GCST (Jan 2016)
+
*[https://github.com/geoschem/geos-chem/issues/270 geoschem/geos-chem #270]
*Needs to be implemented via HEMCO
+
  
|-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]]
+
|Xuan Wang (MIT)
+
|
+
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jan 2016)
+
  
|-valign="top"
+
=== 13.0.0 ===
|Lightning NOx chemistry parameterization
+
|Alicia Gressent (MIT)
+
|
+
  
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
|Update OH + NO2 rate
+
|-bgcolor="#CCCCCC"
|Barron Henderson (UF)
+
!width="500px"|Feature
|
+
!width="200px"|Submitted by
 +
!width="100px"|Type
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Fix to direct/diffuse radiation
+
!colspan="4" bgcolor="#CCFFFF"|Updates that will NOT affect full-chemistry simulations
|Katie Travis (Harvard)
+
|
+
  
 
|-valign="top"
 
|-valign="top"
|[[Dry_deposition#Fix_for_NO3_.2B_ISOP_product|Fix for NO3 + ISOP product]]
+
|Retire the GNU Make build system in both GEOS-Chem Classic and GCHP and replace with CMake
|Katie Travis (Harvard)
+
|Liam Bindle (WashU)
 +
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Lightning update based on Travis et al. (submitted) and Zhang et al. (2014, ACP)
+
|Retire the GEOS-Chem Unit Tester repository and move GEOS-Chem run directory creation to the GEOS-Chem source code repository
|Katie Travis (Harvard)
+
|Melissa Sulprizio (GCST)
|
+
|Structural
|-valign="top"
+
|Updated organic deposition
+
|Katie Travis (Harvard)<br>Jenny Fisher (U. Wollongong)
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Remove dependence of species drydep on HNO3 drydep
+
|Make HEMCO a Git submodule in GEOS-Chem
|Katie Travis (Harvard)<br>Jenny Fisher (U. Wollongong)
+
|[[GCST]]
 +
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Add aqueous isoprene uptake to SOA scheme
+
|Dynamic diagnostic array size allocation based on settings in HISTORY.rc
|Eloise Marais (Harvard)
+
|Bob Yantosca (GCST)
 +
|Structural
 
|
 
|
*Delivered to GCST (Jul 2016)
 
  
|-valign="top"
+
|-
|Enhance default GEOS-Chem simple SOA
+
!colspan="4" bgcolor="#CCFFFF"|Features only affecting GCHP:
|Aerosol Working Group Chairs
+
|
+
  
 
|-valign="top"
 
|-valign="top"
|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
+
|Retire the existing GCHP repository and replace with a new wrapper repository that uses ESMF as an external library and integrates GEOS-Chem and NASA/GMAO GEOS-ESM git repositories as git submodules
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Lizzie Lundgren (GCST)
 +
|Structural
 
|
 
|
*Implemented in v9-01-01
 
*Needs to be added as a HEMCO extension
 
  
 
|-valign="top"
 
|-valign="top"
|FlexGrid: Use HEMCO I/O and regridding capabilities to read and regrid met fields
+
|Separate HEMCO from GEOS-Chem to use as an ESMF gridded component in GCHP
|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
+
|Lizzie Lundgren (GCST)
 +
|Structural
 
|
 
|
*Delivered to GCST (Oct 2016)
 
  
|-valign="top"
+
|}
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Carey Friedman (MIT)<br>Helen Amos (Harvard)
+
|
+
  
|-valign="top"
+
== Priorities not yet assigned to a particular version ==
|VBS SOA option
+
|Rokjin Park (SNU)
+
|
+
  
|-valign="top"
+
The following items have been identified as priorities for GEOS-Chem, but have not yet been assigned to a particular GEOS-Chem version.
|[[EDGAR_v4.3_anthropogenic_emissions|EDGAR v4.3 emissions]]
+
|Chi Li (Dalhousie)
+
|
+
  
|-valign="top"
+
=== Ready to go in ===
|[[CAC_anthropogenic_emissions#Historical_emissions|Historical CAC emissions]]
+
|Chi Li (Dalhousie)
+
|
+
  
|}
+
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="500px"|Feature
 +
!width="200px"|Submitted by
 +
!width="100px"|Type
 +
!width="300px"|Notes
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 13:56, 2 November 2016 (UTC)
+
|-
 
+
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
=== 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"
|Additional modifications for [[FlexChem]], including:
+
|Improved wet scavenging (Luo et al., 2020)
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, UCX, SOA, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Gan Luo (Albany)<br>Fanqun Yu (Albany)
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
|Science
|Mike Long (Harvard)<br>[[GCST]]
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3a: Output diagnostics in NetCDF format]]
+
|Implement H2 chemistry in UCX
|[[GCST]]
+
|Chris Holmes (FSU)
 +
|Science
 
|
 
|
  
 
|-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]]
+
|Joint CO, CO2, CH4 simulation
|[[GCST]]<br>Christoph Keller
+
|Beata Bukosa (Wollongong)
 +
|Science
 
|
 
|
 +
*Delivered to GCST (Jun 2019)
  
|-valign="top"
+
|-
|Species Database Phase 3:
+
!colspan="4" bgcolor="#CCFFFF"|Emissions and surface fluxes updates
*Harmonizing Henry's Law coefficients across wet and dry deposition
+
|[[GCST]]
+
|
+
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem_tracer_units|Uniformity of units]]
+
|ODIAC fossil fuel emissions for CO2 simulations
|Lizzie Lundgren ([[GCST]])
+
|Jenny Fisher (UOW)<br>Yi Cao (UOW)
 +
|Science
 
|
 
|
*Phase 2 (unit uniformity throughout chemistry) to be implemented after Flexchem
+
*Delivered to GCST (Jan 2020)
*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
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Temporary fix to remove SO2 scavenging in convective updrafts]]
+
|Updated Streets Hg emissions
|Duncan Fairlie (NASA/LARC)  
+
|Colin Thackray (Harvard)
 +
|Science
 
|
 
|
*Delivered to [[GEOS-Chem Support Team|GCST]] (Nov 2015)
 
*'''''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]]
+
|Updated EDGAR 4.3 Hg emissions
|Duncan Fairlie (NASA/LARC)  
+
|Amanda Giang (UBC)
 +
|Science
 
|
 
|
*Still needs to be fully validated
 
  
 
|-valign="top"
 
|-valign="top"
|Update MODIS LAI fields through 2015
+
|Offline CLM Harmonization
|Barron Henderson (UF)
+
|Anthony Wong (BU)<br>Jeff Geddes (BU)
 +
|Science
 
|
 
|
 +
 +
|-
 +
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
  
 
|-valign="top"
 
|-valign="top"
|[[Python code for GEOS-Chem|Python GEOS-Chem output processing and visualization package]]
+
|Arctic marine SOA
|Beno&icirc;t Bovy (U. Li&egrave;ge-Belgium)
+
|Betty Croft (Dalhousie)
 +
|Science
 
|
 
|
*Users may download, test it, and submit feedback to Benoit Bovy.
+
*Details on wiki only, not in standard code
 +
 
 +
|}
 +
 
 +
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
 +
 
 +
=== Almost there (< 6 months) ===
 +
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|- bgcolor="#cccccc"
 +
!width="500px"|Item
 +
!width="200px"|Author(s)
 +
!width="100px"|Type
 +
!width="300px"|Notes
  
 
|-valign="top"
 
|-valign="top"
|Benchmark of stratosphere simulation
+
|[https://www.geosci-model-dev.net/12/111/2019/gmd-12-111-2019.pdf Aromatic VOC chemistry]
|Dylan Jones (U. Toronto)
+
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
 +
|Science
 
|
 
|
*1-yr benchmarks for GEOS-Chem v11-01d and later include comparisons with OSIRIS O3
 
*Waiting on OSIRIS NO2 data
 
*Waiting on comparisons with ACE-FTS data
 
  
 
|-valign="top"
 
|-valign="top"
|Updates to isoprene chemistry, includes:
+
|C2H4 and C2H2 chemistry
*Fast photolysis of carbonyl nitrates
+
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
*Aerosol uptake of organic nitrates
+
|Science
|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"
|Updated nighttime isoprene chemistry
+
|Diagnostic to archive XCO2, XCO, and XCH4
|Kelvin Bates (Caltech)<br>Rebecca Schwantes (Caltech)
+
|Dylan Jones (Toronto)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|3D chemical source for CO2 and CO; OH for tagged CO and CH4 simulations
+
|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
|Dylan Jones (U. Toronto)
+
|Kazu Miyazaki (JPL)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Hg code updates (chemistry, ocean, land)
+
|Evaluate the impact on the tropsophere of using the family approach for transport in the stratosphere
|[[Hg and POPs Working Group]]
+
|Christoph Keller (NASA/GMAO)  
 +
|Science
 
|
 
|
 +
*Important when [[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|extending UCX into the mesosphere]]
  
 
|-valign="top"
 
|-valign="top"
|Nested CO2, CH4, Hg, TOMAS, adjoint, etc.
+
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
|[[Nested Model Working Group]]
+
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|EPA-derived BC/OA emissions over US (1990-2012)
+
|Examine differences in the lightning NOx schemes in GEOS-Chem and GMI
|David Ridley (MIT)
+
|Christoph Keller (NASA/GMAO)<br>Lee Murray (Rochester)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Surface ocean Hg boundary conditions from MITgcm
+
|HMS chemistry
|Hannah Horowitz (Harvard)
+
|Jonathan Moch (Harvard)
 +
|Science
 
|
 
|
*Paper is being prepared for submission
 
  
 
|-valign="top"
 
|-valign="top"
|Kz eddy mixing scheme
+
|Heterogeneous sulfate production
|Karen Yu (Harvard)
+
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Global evaluation of using LWC and IWC from met fields for wet scavenging
+
|BrC aging
|Hongyu Liu (NIA/NASA LARC)<br>Bo Zhang (NIA)
+
|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Sea salt emission from sea ice
+
|Retire carbon-based units for VOCs
|Jiayue Huang (UW)
+
|GCST
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Re-evaluation of SST dependence of sea salt emissions
+
|Update of US emissions to NEI16
|Jiayue Huang (UW)
+
|Barron Henderson (EPA)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Merge standard simulation with specialty simulations for OVOC, acids, aromatics, dicarbonyls, terpenes
+
|Updated surface ocean dissolved Hg0 from MITgcm
|Dylan Millet (UMN)<br>Xin Chen (UMN)
+
|Yanxu Zhang (Nanjing)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|MOSAIC implementation
+
|One-Way Coupling w/ GISS ModelE3
|Sebastian Eastham (Harvard)
+
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
 +
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[Aerosols_Working_Group#Sedimentation_of_stratospheric_aerosols|Sedimentation of stratospheric aerosols]]
+
|Shared Socioeconomic Pathways Emission Inventories
|Sebastian Eastham (Harvard)
+
|Hong Liao (NUIST)
 +
|Science
 
|
 
|
  
 
|}
 
|}
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 15:12, 26 October 2016 (UTC)
+
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
  
 
=== Over the horizon (6-12 months) ===
 
=== Over the horizon (6-12 months) ===
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{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
!width="400px"|Item
+
!width="500px"|Item
!width="300px"|Author(s)
+
!width="200px"|Author(s)
!width="400px"|Status
+
!width="100px"|Type
 +
!width="300px"|Notes
  
 
|-valign="top"
 
|-valign="top"
|Dust emissions at nested-grid resolution
+
|Update OCS simulation in the standard code
|Yuxuan Wang (Texas A&M)<br>Jun Wang (UNL)
+
|Kevin Bowman (JPL)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive meteorological fields with higher resolution (for RCPs)
+
|Examine what are the differences in the PSC implementation in GEOS-Chem and GMI and assess the implications of these differences for startospheric ozone
|Lee Murray (NASA GISS/LDEO)
+
|Susan Strahan (Goddard)<br>Sebastian Eastham (MIT)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Land cover module in GEOS-Chem
+
|Rediagnosis of RAS convection in GEOS-Chem
|Jeffrey Geddes (MIT)<br>Michael Long (Harvard)
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Improved lightning emission scheme
+
|New schedule for tracer transport benchmarks (FP change, scavenging change, or major release)
|Lee Murray (NASA GISS/LDEO)
+
|Andrea Molod (NASA/GMAO)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive high resolution wind fields for sea salt
+
|Updated cloud water pH
|[[GEOS-Chem Support Team]]
+
|Viral Shah (Harvard)<br>Jonathan Moch (Harvard)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Cl chemistry updates
+
|Methylethylketone chemistry
|Lyatt Jaegl&eacute; (UW)
+
|Jared Brewer (CSU)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Automate redistribution of NOx in HEMCO
+
|Add sulfate dependence to SOA yield from isoprene in simple SOA
|Lee Murray (NASA GISS/LDEO)
+
|Elo&iuml;se Marais (Leicester)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Injection height for fire emissions
+
|Trace metal simulation
|Emily Fischer (CSU)
+
|Junwei Xu (Dalhousie)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Include Hg in full chemistry
+
|Hg gas-phase photo-reduction
|Noelle Selin (MIT)
+
|Colin Thackray (Harvard)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|DMS oxidation scheme updating
+
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
|Tom Breider (Harvard)<br>Becky Alexander (U. Washington)<br>[[Chemistry Issues|Oxidants and Chemistry Working Group]]
+
|Amos Tai (CUHK)
 +
|Science
 
|
 
|
*Currently being worked on by a member of the [http://www.atmos.washington.edu/blog/beckya/group-members/ Alexander group]
 
  
 
|-valign="top"
 
|-valign="top"
|Historical Hg emissions (1850-present)
+
|Canopy Physics Model
|Hannah Horowitz (Harvard)
+
|Sam Silva (MIT)
 +
|Structural
 
|
 
|
*Awaiting completion of David Street's revised 1850-present inventory
 
  
 
|-valign="top"
 
|-valign="top"
|Joint CO/CO2/CH4 forward model simulation
+
|Landcover/Fire Emissions Offline LPJlmfire
|Nicholas Deutscher (U. Wollongong)
+
|Loretta Mickley (Harvard)
 +
|Science
 
|
 
|
 +
 +
|}
 +
 +
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
 +
 +
=== Longer term (12-24 months)===
 +
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|- bgcolor="#cccccc"
 +
!width="500px"|Item
 +
!width="200px"|Author(s)
 +
!width="100px"|Type
 +
!width="300px"|Notes
  
 
|-valign="top"
 
|-valign="top"
|Past and future fire emissions under RCPs
+
|Implement isotope simulation for CO and CH4 in GCHP
|Loretta Mickley (Harvard)<br>Yuhang Wang (GIT)<br>Shiliang Wu (MT)
+
|Lee Murray (Rochester)
 +
|Science
 
|
 
|
*Some regional (western US, Canada, and Alaska) inventories for the 2050s A1B scenario are available by request (Loretta Mickley).
 
*Further work on global scale and other scenarios are underway.
 
  
 
|-valign="top"
 
|-valign="top"
|Benchmark for 0.25x0.3125 nested NA model
+
|Migrate LETFK DA scheme to GCHP
|Jun Wang (UNL)
+
|Kazu Miyazaki (JPL)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Emission scheme of dust: subgrid wind variation to remove resolution dependence and better interannual variability
+
|Super fast chemistry scheme  
|David Ridley (MIT)
+
|Benjamin Brown-Steiner (AER)<br>Makoto Kelp (Harvard)
 +
|Science
 
|
 
|
 
|}
 
 
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 15:12, 26 October 2016 (UTC)
 
 
=== Longer term (12-24 months)===
 
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="400px"|Item
 
!width="300px"|Author(s)
 
!width="400px"|Status
 
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate and nitrate simulation]], including
+
|Add non-volatile cations to ISORROPIA
*[[Sulfate_aerosols#Metal_catalyzed_oxidation_of_SO2|Metal catalyzed oxidation of SO2]] (as a switch)
+
 
|Becky Alexander (UW)
 
|Becky Alexander (UW)
 +
|Science
 
|
 
|
*These updates been implemented in v9-02, but have not been successfully merged with HEMCO in v10-01
 
*Improvements for the tagged nitrate simulation are in the pipeline
 
  
 
|-valign="top"
 
|-valign="top"
|CO2 dependence of stomata conductance in dry deposition
+
|Update Europe emissions to EMEP 2016
|Amos Tai (CUHK)
+
|Eloise Marais (Leicester)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Ozone damage to vegetation
+
|MEGAN3
|Amos Tai (CUHK)
+
|Sam Silva (MIT)<br>Jen Kaiser (GIT)<br>Yuxuan Wang (UH)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Bi-directional NH3 emissions
+
|DMS oxidation scheme updating
|Juliet Zhu (CSU)<br>Lin Zhang (PKU)
+
|Becky Alexander (UW)<br>Qianjie Chen (UW)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Arsenic simulation
+
|Streamlining of specialty simulations through HEMCO and KPP
|Shiliang Wu (MT)
+
|GCST<br>Chris Holmes (FSU)<br>Colin Thackray for POPs (Harvard)<br>Peter Ivatt (York) for PAH
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dry deposition: Update the ozone dry deposition scheme
+
|Hg in WRF-GC
|[http://www.chem.utoronto.ca/wp/murphygroup/ Murphy group] (UofT)
+
|Yanxu Zhang (Nanjing)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Country-based weekend/weekday variability for EDGAR v4.2
+
|Hg with blowing snow
|Lee Murray (NASA GISS/LDEO)<br>Christoph Keller (Harvard)
+
|Yanxu Xhang (Nanjing)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Resolution-independent lightning NOx scaling
+
|Updated treatment of Hg in ocean
|Lee Murray (NASA GISS/LDEO)
+
|Chris Holmes (FSU)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Nested-grid model with GEOS-FP at 1/2&deg; x 5/8&deg; resolution
+
|GTMM updates
|[[Nested Model Working Group]]
+
|Ben Geyman (Harvard)
 +
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Update HCN simulation, implement in standard model via FlexChem
+
|Complex / multicomplex variables
|Jenny Fisher (U. Wollongong)
+
|Shannon Capps (Drexel)
 +
|Structural
 
|
 
|
*Not a priority
 
  
 
|-valign="top"
 
|-valign="top"
|TNO emissions over Europe (7km)
+
|Build KPP when you compile GC
|[http://acmg.seas.harvard.edu/geos/geos_people.html#athens Greece team]
+
|GCST
 +
|Structural
 
|
 
|
*On hold indefinitely
 
  
 
|-valign="top"
 
|-valign="top"
|Implement biogenic emissions of ethane, propane
+
|Restructure source code folders
|Zitely Tzompa (CSU)
+
|GCST
 +
|Structural
 
|
 
|
*On hold indefinitely
 
  
 
|-valign="top"
 
|-valign="top"
|Subgrid scale precipitation variability
+
|Archived CMIP6 Met Products for GEOS-Chem Input
|[http://acmg.seas.harvard.edu/ Harvard group]
+
|Lee Murray (Rochester)
 +
|Science
 
|
 
|
*On hold indefinitely
 
  
 
|}
 
|}
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 15:12, 26 October 2016 (UTC)
+
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
 +
 
 +
----------------
 +
 
 +
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''

Revision as of 15:50, 3 April 2020

GEOS-Chem Main Page | GCHP Main Page

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.

We also invite you to view our GEOS-Chem Support Team project management board on Trello.com, which shows the current GCST workflow.

Priorities assigned to upcoming GEOS-Chem versions

12.8.0

This version is currently in development. See the GEOS-Chem 12 wiki page for details.

12.9.0

This version will require 1-month and 1-year full-chemistry benchmarks.

Feature Submitted by Type Notes and References
Updates that WILL AFFECT the full-chemistry simulation
Updated halogen chemistry Xuan Wang (Harvard)
Tomas Sherwen (York)
Shuting Zhai (UW)
Science
  • Delivered to GCST (Sep 2019)
  • Originally implemented in v11-02e and updated to 12.5.0 by Will Downs (GCST)
Fix incorrect rates in stratosphere for HOBr + SO3/HSO3 Seb Eastham (MIT) Science
Updates that WILL NOT AFFECT the full-chemistry simulation
Reduction of memory for HISTORY diagnostics with a species dimension Bob Yantosca (GCST) Structural

13.0.0

Feature Submitted by Type Notes and References
Updates that will NOT affect full-chemistry simulations
Retire the GNU Make build system in both GEOS-Chem Classic and GCHP and replace with CMake Liam Bindle (WashU) Structural
Retire the GEOS-Chem Unit Tester repository and move GEOS-Chem run directory creation to the GEOS-Chem source code repository Melissa Sulprizio (GCST) Structural
Make HEMCO a Git submodule in GEOS-Chem GCST Structural
Dynamic diagnostic array size allocation based on settings in HISTORY.rc Bob Yantosca (GCST) Structural
Features only affecting GCHP:
Retire the existing GCHP repository and replace with a new wrapper repository that uses ESMF as an external library and integrates GEOS-Chem and NASA/GMAO GEOS-ESM git repositories as git submodules Lizzie Lundgren (GCST) Structural
Separate HEMCO from GEOS-Chem to use as an ESMF gridded component in GCHP Lizzie Lundgren (GCST) Structural

Priorities not yet assigned to a particular version

The following items have been identified as priorities for GEOS-Chem, but have not yet been assigned to a particular GEOS-Chem version.

Ready to go in

Feature Submitted by Type Notes
Chemistry updates
Improved wet scavenging (Luo et al., 2020) Gan Luo (Albany)
Fanqun Yu (Albany)
Science
Implement H2 chemistry in UCX Chris Holmes (FSU) Science
Joint CO, CO2, CH4 simulation Beata Bukosa (Wollongong) Science
  • Delivered to GCST (Jun 2019)
Emissions and surface fluxes updates
ODIAC fossil fuel emissions for CO2 simulations Jenny Fisher (UOW)
Yi Cao (UOW)
Science
  • Delivered to GCST (Jan 2020)
Updated Streets Hg emissions Colin Thackray (Harvard) Science
Updated EDGAR 4.3 Hg emissions Amanda Giang (UBC) Science
Offline CLM Harmonization Anthony Wong (BU)
Jeff Geddes (BU)
Science
Aerosol updates
Arctic marine SOA Betty Croft (Dalhousie) Science
  • Details on wiki only, not in standard code

--Melissa Sulprizio (talk) 16:38, 14 May 2019 (UTC)

Almost there (< 6 months)

Item Author(s) Type Notes
Aromatic VOC chemistry Kelvin Bates (Harvard)
Ke Li (Harvard)
Science
C2H4 and C2H2 chemistry Kelvin Bates (Harvard)
Ke Li (Harvard)
Science
Diagnostic to archive XCO2, XCO, and XCH4 Dylan Jones (Toronto) Science
Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations Kazu Miyazaki (JPL) Science
Evaluate the impact on the tropsophere of using the family approach for transport in the stratosphere Christoph Keller (NASA/GMAO) Science
Extend UCX into the mesosphere Sebastian Eastham (MIT)
Eric Fleming (NASA GMAO)
Science
Examine differences in the lightning NOx schemes in GEOS-Chem and GMI Christoph Keller (NASA/GMAO)
Lee Murray (Rochester)
Science
HMS chemistry Jonathan Moch (Harvard) Science
Heterogeneous sulfate production Lin Zhang (PKU)
Becky Alexander (UW)
Yuxuan Wang (U. Houston)
Science
BrC aging Xuan Wang (Harvard)
Melanie Hammer(Dalhousie)
Science
Retire carbon-based units for VOCs GCST Science
Update of US emissions to NEI16 Barron Henderson (EPA) Science
Updated surface ocean dissolved Hg0 from MITgcm Yanxu Zhang (Nanjing) Science
One-Way Coupling w/ GISS ModelE3 Lee Murray (Rochester)
Eric Leibensperger (SUNY Plattsburgh)
Structural
Shared Socioeconomic Pathways Emission Inventories Hong Liao (NUIST) Science

--Melissa Sulprizio (talk) 16:38, 14 May 2019 (UTC)

Over the horizon (6-12 months)

Item Author(s) Type Notes
Update OCS simulation in the standard code Kevin Bowman (JPL) Science
Examine what are the differences in the PSC implementation in GEOS-Chem and GMI and assess the implications of these differences for startospheric ozone Susan Strahan (Goddard)
Sebastian Eastham (MIT)
Science
Rediagnosis of RAS convection in GEOS-Chem Tailong He (Toronto)
Dylan Jones (Toronto)
Andrea Molod (NASA/GMAO)
Science
New schedule for tracer transport benchmarks (FP change, scavenging change, or major release) Andrea Molod (NASA/GMAO) Science
Updated cloud water pH Viral Shah (Harvard)
Jonathan Moch (Harvard)
Science
Methylethylketone chemistry Jared Brewer (CSU) Science
Add sulfate dependence to SOA yield from isoprene in simple SOA Eloïse Marais (Leicester) Science
Trace metal simulation Junwei Xu (Dalhousie) Science
Hg gas-phase photo-reduction Colin Thackray (Harvard) Science
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Amos Tai (CUHK) Science
Canopy Physics Model Sam Silva (MIT) Structural
Landcover/Fire Emissions Offline LPJlmfire Loretta Mickley (Harvard) Science

--Melissa Sulprizio (talk) 16:38, 14 May 2019 (UTC)

Longer term (12-24 months)

Item Author(s) Type Notes
Implement isotope simulation for CO and CH4 in GCHP Lee Murray (Rochester) Science
Migrate LETFK DA scheme to GCHP Kazu Miyazaki (JPL) Science
Super fast chemistry scheme Benjamin Brown-Steiner (AER)
Makoto Kelp (Harvard)
Science
Add non-volatile cations to ISORROPIA Becky Alexander (UW) Science
Update Europe emissions to EMEP 2016 Eloise Marais (Leicester) Science
MEGAN3 Sam Silva (MIT)
Jen Kaiser (GIT)
Yuxuan Wang (UH)
Science
DMS oxidation scheme updating Becky Alexander (UW)
Qianjie Chen (UW)
Science
Streamlining of specialty simulations through HEMCO and KPP GCST
Chris Holmes (FSU)
Colin Thackray for POPs (Harvard)
Peter Ivatt (York) for PAH
Science
Hg in WRF-GC Yanxu Zhang (Nanjing) Science
Hg with blowing snow Yanxu Xhang (Nanjing) Science
Updated treatment of Hg in ocean Chris Holmes (FSU) Science
GTMM updates Ben Geyman (Harvard) Science
Complex / multicomplex variables Shannon Capps (Drexel) Structural
Build KPP when you compile GC GCST Structural
Restructure source code folders GCST Structural
Archived CMIP6 Met Products for GEOS-Chem Input Lee Murray (Rochester) Science

--Melissa Sulprizio (talk) 16:38, 14 May 2019 (UTC)


GEOS-Chem Main Page | GCHP Main Page