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

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(Awaiting release)
(Slated for inclusion in v11-02)
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!width="250px"|Author(s)
 
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*Slated for [[GEOS-Chem v11-02#v11-02d|v11-02d]]
 
*Slated for [[GEOS-Chem v11-02#v11-02d|v11-02d]]
  
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|[[EDGAR_v4.3_anthropogenic_emissions|EDGAR v4.3 emissions]]
 
|[[EDGAR_v4.3_anthropogenic_emissions|EDGAR v4.3 emissions]]
 
|Science
 
|Science
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*Delivered to GCST (Nov 2016)
 
*Delivered to GCST (Nov 2016)
  
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|EPA-derived BC/OA emissions over US (1990-2012)
 
|EPA-derived BC/OA emissions over US (1990-2012)
 
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|[[CAC_anthropogenic_emissions#Historical_emissions|Historical CAC emissions]]
 
|[[CAC_anthropogenic_emissions#Historical_emissions|Historical CAC emissions]]
 
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*Delivered to GCST (Nov 2016)
 
*Delivered to GCST (Nov 2016)
  
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|Default US emissions to NEI after 2011
 
|Default US emissions to NEI after 2011
 
|Science
 
|Science
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|Ammonia from Arctic birds
 
|Ammonia from Arctic birds
 
|Science
 
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|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
 
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
 
|Science
 
|Science
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*Needs to be implemented via HEMCO
 
*Needs to be implemented via HEMCO
  
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|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
 
|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
 
|Science
 
|Science
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*Needs to be added as a HEMCO extension
 
*Needs to be added as a HEMCO extension
  
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|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
 
|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
 
|Science
 
|Science
 
|Amos Tai (CUHK)
 
|Amos Tai (CUHK)
 
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|[[GEOS-Chem_species_units|Uniformity of units]]
 
|[[GEOS-Chem_species_units|Uniformity of units]]
 
|Structural
 
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*Phase 4 (removal of area and area-dependent State_Met variables) will be ongoing
 
*Phase 4 (removal of area and area-dependent State_Met variables) will be ongoing
  
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|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3a: Output diagnostics in NetCDF format]]  
 
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3a: Output diagnostics in NetCDF format]]  
 
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|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3b: Updates to eliminate differences between single and multi-segmented GEOS-Chem runs]]  
 
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3b: Updates to eliminate differences between single and multi-segmented GEOS-Chem runs]]  
 
|Bug fix/Structural
 
|Bug fix/Structural
 
|[[GCST]]<br>Christoph Keller
 
|[[GCST]]<br>Christoph Keller
 
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|Additional modifications for [[FlexChem]], including:
 
|Additional modifications for [[FlexChem]], including:
 
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, UCX, SOA, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
 
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, UCX, SOA, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
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|FlexGrid: Use HEMCO I/O and regridding capabilities to read and regrid met fields
 
|FlexGrid: Use HEMCO I/O and regridding capabilities to read and regrid met fields
 
|Structural
 
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*Delivered to GCST (Oct 2016)
 
*Delivered to GCST (Oct 2016)
  
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|Merge standard simulation with specialty simulations for OVOC, acids, aromatics, dicarbonyls, terpenes
 
|Merge standard simulation with specialty simulations for OVOC, acids, aromatics, dicarbonyls, terpenes
 
|Science
 
|Science
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|Nested CO2, CH4, Hg, TOMAS, adjoint, etc.
 
|Nested CO2, CH4, Hg, TOMAS, adjoint, etc.
 
|Science
 
|Science

Revision as of 20:21, 20 April 2017

On this page we list the current priorities for GEOS-Chem development. This list was compiled by the user Working Groups at the last 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.

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

List of priorities as of Nov 2016

The items listed below are in different stages of readiness and will be included in future versions of the model.

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. More information on those items can be obtained on the GEOS-Chem v11-02 wiki page.

Item Author(s) Status
Science updates
Updating chemistry rate constants based on JPL Publication 15-10 Barron Henderson (U. Florida)
Mat Evans (U. York)
Oxidants and Chemistry WG
  • Will be included in v11-02a (pending approval)
PAN updates Emily Fischer (CSU)
  • Will be included in v11-02a (pending approval)
Monthly mean NEI2011 emissions GCST
Katie Travis (Harvard)
  • Will be included in v11-02a (pending approval)
Structural/programming updates
TBD
Documentation
TBD

--Melissa Sulprizio (talk) 20:08, 9 March 2017 (UTC)

Ready to go in

Slated for inclusion in v11-02

The following items were prioritized for inclusion in GEOS-Chem v11-02.

Item Type Author(s) Status
Chemistry updates
Halogen chemistry updates Science Tomás Sherwen (York)
Johan Schmidt (Harvard)
Oxidants and Chemistry WG
Enhance default GEOS-Chem simple SOA Science Aerosol Working Group Chairs
Updates to isoprene chemistry, includes:
  • Fast photolysis of carbonyl nitrates
  • Aerosol uptake of organic nitrates
  • Nighttime isoprene chemistry
Science Jenny Fisher (U. Wollongong)
Eloïse Marais (Harvard)
Katie Travis (Harvard)
Kelvin Bates (Caltech)
Rebecca Schwantes(Caltech)
  • Delivered to GCST (Mar 2017)
  • Slated for v11-02c
Add aqueous isoprene uptake to SOA scheme Science Eloise Marais (Harvard)
  • Delivered to GCST (Jul 2016)
  • Slated for v11-02c
Update density of BC to 1.8 and add absorption enhancement factor in input.geos Science Xuan Wang (MIT)
Monthly mean surface methane distributions Science Lee Murray (NASA GISS/LDEO)
Radon flux diagnostic Benchmarking GCST
Emission updates
EDGAR v4.3 emissions Science Chi Li (Dalhousie)
  • Delivered to GCST (Nov 2016)
EPA-derived BC/OA emissions over US (1990-2012) Science David Ridley (MIT)
Historical CAC emissions Science Chi Li (Dalhousie)
  • Delivered to GCST (Nov 2016)
Default US emissions to NEI after 2011 Science Dalhousie group
Ammonia from Arctic birds Science Dalhousie group
Ocean ammonia emission inventory Science Fabien Paulot (NOAA/GFDL)
  • Data files delivered to GCST (Jan 2016)
  • Needs to be implemented via HEMCO
A snow NOx source from deep snowpack Science Maria Zatko (UW)
Becky Alexander (UW)
  • Implemented in v9-01-01
  • Needs to be added as a HEMCO extension
Non-agricultural NH3 for use with MASAGE Science Amos Tai (CUHK)
Deposition/surface updates
Fix to direct/diffuse radiation Science Katie Travis (Harvard)
Species Database Phase 3:
  • Harmonizing Henry's Law coefficients across wet and dry deposition
Science GCST
Updated organic deposition Science Katie Travis (Harvard)
Jenny Fisher (U. Wollongong)
Remove dependence of species drydep on HNO3 drydep Science Katie Travis (Harvard)
Jenny Fisher (U. Wollongong)
Update SO2 scavenging in convective updrafts for consistency Science Duncan Fairlie (NASA/LARC)
Sedimentation of stratospheric aerosols Science Sebastian Eastham (Harvard)
Structural updates
Uniformity of units Structural GCST
  • 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
NetCDF Output Phase 3a: Output diagnostics in NetCDF format Structural GCST
NetCDF Output Phase 3b: Updates to eliminate differences between single and multi-segmented GEOS-Chem runs Bug fix/Structural GCST
Christoph Keller
Hg and POPs updates
PCB simulation Science Carey Friedman (MIT)
Helen Amos (Harvard)
Hg code updates (chemistry, ocean, land) Science Hg and POPs Working Group
Surface ocean Hg boundary conditions from MITgcm Science Hannah Horowitz (Harvard)
Expansion of model capabilities
Additional modifications for FlexChem, including:
  • Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, UCX, SOA, SOA-SVPOA) with Kppa
  • Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
Structural Mike Long (Harvard)
GCST
FlexGrid: Use HEMCO I/O and regridding capabilities to read and regrid met fields Structural Jiawei Zhuang (Harvard)
Jintai Lin (PKU)
  • Delivered to GCST (Oct 2016)
Merge standard simulation with specialty simulations for OVOC, acids, aromatics, dicarbonyls, terpenes Science Dylan Millet (UMN)
Xin Chen (UMN)
Nested CO2, CH4, Hg, TOMAS, adjoint, etc. Science Nested Model Working Group

--Melissa Sulprizio (talk) 16:13, 7 November 2016 (UTC)

Defer to v11-03 unless ready in time for v11-02

Item Type Author(s) Status
Global evaluation of using LWC and IWC from met fields for wet scavenging Science Hongyu Liu (NIA/NASA LARC)
Bo Zhang (NIA)
Kz eddy mixing scheme Science Karen Yu (Harvard)
VBS SOA option Science Rokjin Park (SNU)
Benchmark of stratosphere simulation Benchmarking Dylan Jones (U. Toronto)
  • 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

--Melissa Sulprizio (talk) 16:13, 7 November 2016 (UTC)

Not prioritized for v11-02 (revisit at IGC8)

Item Type Author(s) Status
Python GEOS-Chem output processing and visualization package Software package Benoît Bovy (U. Liège-Belgium)
  • Users may download, test it, and submit feedback to Benoit Bovy.
Sea salt emission from sea ice Science Jiayue Huang (UW)
Re-evaluation of SST dependence of sea salt emissions Science Jiayue Huang (UW)
MOSAIC implementation Science Sebastian Eastham (Harvard)
Update MODIS LAI fields through 2015 Science Barron Henderson (UF)
Lightning NOx chemistry parameterization Science Alicia Gressent (MIT)

--Melissa Sulprizio (talk) 16:13, 7 November 2016 (UTC)

Over the horizon (6-12 months)

Item Type Author(s) Status
Dust emissions at nested-grid resolution Science Yuxuan Wang (Texas A&M)
Jun Wang (UNL)
Archive meteorological fields with higher resolution (for RCPs) Science Lee Murray (NASA GISS/LDEO)
Land cover module in GEOS-Chem Science Jeffrey Geddes (MIT)
Michael Long (Harvard)
Improved lightning emission scheme Science Lee Murray (NASA GISS/LDEO)
Archive high resolution wind fields for sea salt Science GEOS-Chem Support Team
Cl chemistry updates Science Lyatt Jaeglé (UW)
Automate redistribution of NOx in HEMCO Science Lee Murray (NASA GISS/LDEO)
Injection height for fire emissions Science Emily Fischer (CSU)
Include Hg in full chemistry Science Noelle Selin (MIT)
DMS oxidation scheme updating Science Tom Breider (Harvard)
Becky Alexander (U. Washington)
Oxidants and Chemistry Working Group
Historical Hg emissions (1850-present) Science Hannah Horowitz (Harvard)
  • Awaiting completion of David Street's revised 1850-present inventory
Joint CO/CO2/CH4 forward model simulation Science Nicholas Deutscher (U. Wollongong)
Past and future fire emissions under RCPs Science Loretta Mickley (Harvard)
Yuhang Wang (GIT)
Shiliang Wu (MT)
  • 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.
Benchmark for 0.25x0.3125 nested NA model Benchmarking Jun Wang (UNL)
Emission scheme of dust: subgrid wind variation to remove resolution dependence and better interannual variability Science David Ridley (MIT)

--Melissa Sulprizio (talk) 16:13, 7 November 2016 (UTC)

Longer term (12-24 months)

Item Type Author(s) Status
Tagged sulfate and nitrate simulation, including Science Becky Alexander (UW)
  • 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
CO2 dependence of stomata conductance in dry deposition Science Amos Tai (CUHK)
Ozone damage to vegetation Science Amos Tai (CUHK)
Bi-directional NH3 emissions Science Juliet Zhu (CSU)
Lin Zhang (PKU)
Arsenic simulation Science Shiliang Wu (MT)
Dry deposition: Update the ozone dry deposition scheme Science Murphy group (UofT)
Country-based weekend/weekday variability for EDGAR v4.2 Science Lee Murray (NASA GISS/LDEO)
Christoph Keller (Harvard)
Resolution-independent lightning NOx scaling Science Lee Murray (NASA GISS/LDEO)
Nested-grid model with GEOS-FP at 1/2° x 5/8° resolution Structural Nested Model Working Group
Update HCN simulation, implement in standard model via FlexChem Science Jenny Fisher (U. Wollongong)
  • Not a priority
TNO emissions over Europe (7km) Science Greece team
  • On hold indefinitely
Implement biogenic emissions of ethane, propane Science Zitely Tzompa (CSU)
  • On hold indefinitely
Subgrid scale precipitation variability Science Harvard group
  • On hold indefinitely

--Melissa Sulprizio (talk) 16:13, 7 November 2016 (UTC)