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

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'''''[[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.
 
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.
  
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== Priorities assigned to upcoming GEOS-Chem versions ==
 
== Priorities assigned to upcoming GEOS-Chem versions ==
  
=== 12.2.0 ===
+
=== 12.8.0 ===
  
<span style="color:darkorange">'''This version is currently in development. See [[GEOS-Chem_12#12.2.0|the ''GEOS-Chem 12'' wiki page]] for details.'''</span>
+
<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>
  
=== 12.3.0 ===
+
=== 12.9.0 ===
  
The items listed below are slated to be included in GEOS-Chem 12.3.0.  This is a feature release which will be validated with a 1-month benchmark simulation.
+
This version will require 1-month and 1-year full-chemistry benchmarks.
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
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!width="200px"|Submitted by
 
!width="200px"|Submitted by
 
!width="100px"|Type
 
!width="100px"|Type
!width="300px"|Status
+
!width="300px"|Notes and References
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Features affecting the full-chemistry simulation:
+
  
 
|-valign="top"
 
|-valign="top"
|[[ISORROPIA_II#Investigating_persistent_noise_observed_in_ISORROPIA_output|Update ISORROPIA from v2.0 to v2.2, in order to remove persistent noise in output]]
+
!colspan="4" bgcolor="#CCFFFF"|Updates that WILL AFFECT the full-chemistry simulation
|Seb Eastham (Harvard)
+
|Science
+
|
+
*Delivered to GCST (May 2017)
+
  
 
|-valign="top"
 
|-valign="top"
|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#Discussion_of_LAI_Data_Sources|Update MODIS LAI fields for 2005-2016 using Yuan et al. (2011) ]]
+
|[https://www.atmos-chem-phys.net/19/3981/2019/ Updated halogen chemistry]
|Jenny Fisher (Wollongong) <br>Barron Henderson (US EPA)
+
|Xuan Wang (Harvard)<br>Tomas Sherwen (York)<br>Shuting Zhai (UW)
 
|Science
 
|Science
 
|
 
|
*Will require reworking of LAI regridding in GEOS-Chem Classic and pre-processing land map data
+
*Delivered to GCST (Sep 2019)
 +
*Originally implemented in v11-02e and updated to 12.5.0 by Will Downs (GCST)
  
 
|-valign="top"
 
|-valign="top"
|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#Updated_PFT_file|Updated PFT file for MEGAN]]
+
|Fix incorrect rates in stratosphere for HOBr + SO3/HSO3
|Jenny Fisher (Wollongong)<br>Dylan Millet (UMN)
+
|Seb Eastham (MIT)
 
|Science
 
|Science
 
|
 
|
*Delivered to GCST (May 2018)
+
*[https://github.com/geoschem/geos-chem/issues/138 geoschem/geos-chem #138]
  
 
|-valign="top"
 
|-valign="top"
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+
!colspan="4" bgcolor="#CCFFFF"|Updates that WILL NOT AFFECT the full-chemistry simulation
|Sebastian Eastham (MIT)
+
|Science
+
|
+
  
 
|-valign="top"
 
|-valign="top"
|[[Volcanic_SO2_emissions_from_Aerocom#OMI-based_volcanic_emissions|OMI-based Volcanic emissions 2005-2012]]
+
|Reduction of memory for HISTORY diagnostics with a species dimension
|Cui Ge (U. Iowa)<br>Jun Wang (U. Iowa)
+
|Bob Yantosca ([[GCST]])
|Science
+
|
+
*Data delivered to GCST (Jan 2019)
+
 
+
|-valign="top"
+
|[[GEOS-Chem_12#Replace_HEMCO_built-in_unit_conversions_with_scale_factors_in_config_file|Replace HEMCO built-in unit conversions with scale factors in config file]]
+
|[[GCST]]
+
 
|Structural
 
|Structural
 
|
 
|
*Differences in precision and order of operations may result in small number differences
+
*[https://github.com/geoschem/geos-chem/issues/270 geoschem/geos-chem #270]
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Features NOT affecting the full-chemistry simulation:
+
 
+
|-valign="top"
+
|TOMAS update: Allow the "emitted" size distribution be a function of a number of properties
+
|Emily Ramnarine (Colorado State)<br>Jeff Pierce (Colorado State)
+
|Science
+
|
+
*Delivered to GCST (Jan 2019)
+
 
+
  
 
|}
 
|}
  
=== 12.4.0 ===
+
=== 13.0.0 ===
 
+
The items listed below are slated to be included in GEOS-Chem 12.4.0.  This is a feature release which will be validated with a 1-month benchmark simulation and a 1-year benchmark simulation.
+
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
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!width="200px"|Submitted by
 
!width="200px"|Submitted by
 
!width="100px"|Type
 
!width="100px"|Type
!width="300px"|Status
+
!width="300px"|Notes and References
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Features affecting the full-chemistry simulation:
+
!colspan="4" bgcolor="#CCFFFF"|Updates that will NOT affect full-chemistry simulations
  
 
|-valign="top"
 
|-valign="top"
|[[Grid-independent_emissions#Dust_emissions|Grid-independent dust emissions]] (hourly)
+
|Retire the GNU Make build system in both GEOS-Chem Classic and GCHP and replace with CMake
|David Ridley (CARB, formerly MIT)
+
|Liam Bindle (WashU)
|Science
+
|Structural
 
|
 
|
*Data delivered to GCST (Jan 2019)
 
  
 
|-valign="top"
 
|-valign="top"
|[[Grid-independent_emissions#Lightning_NOx_emissions|Grid-independent lightning NOx emissions]] (3-hourly)
+
|Retire the GEOS-Chem Unit Tester repository and move GEOS-Chem run directory creation to the GEOS-Chem source code repository
|Lee Murray (Rochester)
+
|Melissa Sulprizio (GCST)
|Science
+
|Structural
 
|
 
|
*Data delivered to GCST (Jan 2019)
 
  
 
|-valign="top"
 
|-valign="top"
|[[Grid-independent_emissions#Biogenic_emissions|Grid-independent biogenic emissions]] (hourly)
+
|Make HEMCO a Git submodule in GEOS-Chem
|Jintai Lin (PKU)
+
|[[GCST]]
|Science
+
|Structural
 
|
 
|
*Data delivered to GCST (Jan 2019)
 
  
 
|-valign="top"
 
|-valign="top"
|[[Grid-independent_emissions#Sea_salt_emissions|Grid-independent sea salt emissions]] (hourly)
+
|Dynamic diagnostic array size allocation based on settings in HISTORY.rc
|Jintai Lin (PKU)
+
|Bob Yantosca (GCST)
|Science
+
|Structural
 
|
 
|
*Data delivered to GCST (Jan 2019)
+
 
 +
|-
 +
!colspan="4" bgcolor="#CCFFFF"|Features only affecting GCHP:
  
 
|-valign="top"
 
|-valign="top"
|[[Grid-independent_emissions#Soil_NOx_emissions|Grid-independent soil NOx emissions]] (hourly)
+
|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
|Jintai Lin (PKU)
+
|Lizzie Lundgren (GCST)
|Science
+
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Separate HEMCO from GEOS-Chem to use as an ESMF gridded component in GCHP
 +
|Lizzie Lundgren (GCST)
 +
|Structural
 
|
 
|
*Data delivered to GCST (Jan 2019)
 
  
 
|}
 
|}
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!width="200px"|Submitted by
 
!width="200px"|Submitted by
 
!width="100px"|Type
 
!width="100px"|Type
!width="300px"|Status
+
!width="300px"|Notes
  
 
|-
 
|-
Line 145: Line 122:
  
 
|-valign="top"
 
|-valign="top"
|[https://www.geosci-model-dev-discuss.net/gmd-2018-196/ Aromatic chemistry with the SAPRC-11 mechanism]
+
|Improved wet scavenging (Luo et al., 2020)
|Yingying Yan (China University of Geosciences)
+
|Gan Luo (Albany)<br>Fanqun Yu (Albany)
 
|Science
 
|Science
 
|
 
|
*Implemented in GEOS-Chem v9-02
 
  
 
|-valign="top"
 
|-valign="top"
|[https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018JD029133 N2O5 hydrolysis updates]
+
|Implement H2 chemistry in UCX
|Viral Shah (UW)<br>Lyatt Jaegle (UW)<br>Chris Holmes (FSU)  
+
|Chris Holmes (FSU)
 
|Science
 
|Science
 
|
 
|
*Delivered to GCST (Dec 2018)
 
  
 
|-valign="top"
 
|-valign="top"
|Cloud reactive uptake of NOx
+
|Joint CO, CO2, CH4 simulation
|Chris Holmes (FSU)
+
|Beata Bukosa (Wollongong)
 
|Science
 
|Science
 
|
 
|
*Implemented in [[GEOS-Chem v11-01|v11-01]]
+
*Delivered to GCST (Jun 2019)
  
 
|-
 
|-
Line 169: Line 144:
  
 
|-valign="top"
 
|-valign="top"
|Carbon bottom up fluxes: anthro, ocean, land
+
|ODIAC fossil fuel emissions for CO2 simulations
|Kevin Bowman (JPL)
+
|Jenny Fisher (UOW)<br>Yi Cao (UOW)
|Science
+
|Kevin Bowman wrote:
+
*This is a a [https://disc.gsfc.nasa.gov/information/news/59e0d52f7cf032426b15c94f/carbon-monitoring-system-cms-carbon-flux-data-sets-released list of data archived from CMS-Flux] that provides bottom up fluxes.  These have been generated for the years 2010-2012 and are ready to go now.  The key datasets are:
+
**CMSFluxFire
+
**CMSFluxFossilfuel
+
**CMSFluxNEE
+
**CMSFluxOcean
+
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Wet deposition updates
+
 
+
|-valign="top"
+
|Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc.
+
|Sarah Safieddine (MIT)<br>GCST
+
 
|Science
 
|Science
 
|
 
|
 +
*Delivered to GCST (Jan 2020)
  
|-
+
|-valign="top
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+
|Updated Streets Hg emissions
 
+
|Colin Thackray (Harvard)
|-valign="top"
+
|Sea salt aerosol alkalinity
+
|Qianjie Chen (UW)<br>Becky Alexander (UW)<br>Xuan Wang (Harvard)
+
 
|Science
 
|Science
 
|
 
|
*UW version delivered to GCST (Nov 2017)
 
  
|-valign="top"
+
|-valign="top
|VBS SOA option
+
|Updated EDGAR 4.3 Hg emissions
|Rokjin Park (SNU)
+
|Amanda Giang (UBC)
 
|Science
 
|Science
 
|
 
|
*Code has been implemented in the ancient v9-01-02 version. 
 
*Bringing this up to the current SOA model (simple SOA, complex SOA) will likely involve significant effort.
 
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
 
  
 
|-valign="top"
 
|-valign="top"
|AMAP/UNEP 2035 for Hg simulation
+
|Offline CLM Harmonization
|Helene Angot (MIT)
+
|Anthony Wong (BU)<br>Jeff Geddes (BU)
|Science
+
|
+
*Data is available, but has not been transferred to GCST yet
+
 
+
|-valign="top"
+
|Oxidant fields from v10 for 2006-2012
+
*3D chemical source for CO2, CO
+
*OH for tagged CO & CH4
+
|Dylan Jones (UofT)
+
|Science
+
|
+
*Will make data files available on ftp site
+
 
+
|-valign="top"
+
|Africa nested-grid for GEOS-FP and MERRA-2
+
|Eloise Marais (U. Birmingham)
+
|Science
+
|
+
*Delivered to GCST (Dec 2017)
+
*Could be implemented with Jiawei Zhuang's FlexGrid
+
 
+
|-valign="top"
+
|West Africa nested-grid for GEOS-FP
+
|Mat Evans (York)<br>Eleanor Morris (York)
+
|Science
+
|
+
*Could be implemented with Jiawei Zhuang's FlexGrid
+
 
+
|-valign="top"
+
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
+
|Becky Alexander (UW)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Arsenic simulation
+
|Shiliang Wu (MT)
+
 
|Science
 
|Science
 
|
 
|
  
 
|-
 
|-
!colspan="4" bgcolor="#CCFFFF"|GCHP updates
+
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
  
 
|-valign="top"
 
|-valign="top"
|Update to redistribution of mass in transport
+
|Arctic marine SOA
|Seb Eastham (MIT)
+
|Betty Croft (Dalhousie)
 
|Science
 
|Science
 
|
 
|
*Stop gap solution pending use of mass fluxes instead of winds in advection
+
*Details on wiki only, not in standard code
  
|-
 
!colspan="4" bgcolor="#CCFFFF"|Structural updates
 
 
|-valign="top"
 
|Benchmark of stratospheric simulation
 
|Dylan Jones (U. Toronto)
 
|Benchmarking
 
|
 
*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"
 
|Add total column O3 to benchmarks
 
|Chris Holmes (FSU)<br>[[GCST]]
 
|Benchmarking
 
|
 
*Deferred until GEOS-Chem 12
 
*Also note: GCST plans on migrating benchmark plotting code from IDL to Python in v11-03
 
 
|-valign="top"
 
|Further structural updates to facilitate interfacing GEOS-Chem with external models (e.g. WRF, CAM, CESM)
 
|[[GCST]]
 
|Structural
 
|
 
*Ongoing
 
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
 
 
|-valign="top"
 
|Archival of roughness length for temperature z0T
 
|[[GCST]]
 
|Met processing
 
|
 
*Work has not yet begun
 
 
|}
 
|}
  
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 19:04, 2 August 2018 (UTC)
+
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
  
 
=== Almost there (< 6 months) ===
 
=== Almost there (< 6 months) ===
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!width="200px"|Author(s)
 
!width="200px"|Author(s)
 
!width="100px"|Type
 
!width="100px"|Type
!width="300px"|Status
+
!width="300px"|Notes
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Transport updates
+
  
 
|-valign="top"
 
|-valign="top"
|[https://www.geosci-model-dev-discuss.net/gmd-2017-125/ GEOS resolution & subgrid convection]
+
|[https://www.geosci-model-dev.net/12/111/2019/gmd-12-111-2019.pdf Aromatic VOC chemistry]
|Karen Yu (Harvard)
+
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
 
|Science
 
|Science
 
|
 
|
*To be installed by Bob Yantosca (Harvard), tested by Tailong He (Toronto)
 
*Work to begin after [[GEOS-Chem 12#12.0.0|GC 12.0.0]] release
 
  
 
|-valign="top"
 
|-valign="top"
|Transport families in the stratosphere
+
|C2H4 and C2H2 chemistry
|Christoph Keller (NASA GMAO)
+
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
 
|Science
 
|Science
 
|
 
|
*Implemented in GEOS-GC coupled system
 
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
 
  
 
|-valign="top"
 
|-valign="top"
|H2 chemistry in UCX
+
|Diagnostic to archive XCO2, XCO, and XCH4
|Chris Holmes (FSU)
+
|Dylan Jones (Toronto)
 
|Science
 
|Science
 
|
 
|
*Defer until paper is submitted
 
*Estimate Fall 2018 or sooner
 
  
 
|-valign="top"
 
|-valign="top"
|Updated chlorine chemistry
+
|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
|Xuan Wang (Harvard)
+
|Kazu Miyazaki (JPL)
 
|Science
 
|Science
 
|
 
|
*Defer until the paper is submitted
 
  
 
|-valign="top"
 
|-valign="top"
|[[Chemistry_Issues#Correcting_ozone_from_the_height_of_the_lowest_model_level_to_the_surface|ND49 timeseries diagnostic for correcting ozone from the height of the lowest model level to 10m]]
+
|Evaluate the impact on the tropsophere of using the family approach for transport in the stratosphere
|Katie Travis (MIT)
+
|Christoph Keller (NASA/GMAO)  
|Structural
+
|
+
*Defer until the paper is submitted
+
 
+
|-valign="top"
+
|OH + NO2 rate update
+
|Barron Henderson (EPA)
+
 
|Science
 
|Science
 
|
 
|
 +
*Important when [[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|extending UCX into the mesosphere]]
  
 
|-valign="top"
 
|-valign="top"
|[[Chemistry_Issues#Script_for_evaluating_carbon_balance|Script for checking N, C, etc. balance in chemistry mechanism]]
+
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
|Barron Henderson (EPA)
+
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
|Software
+
|Science
|Barron Henderson wrote:
+
*The script for checking the carbon balance exists and works. Ideally, we would move some of the structures into the KPP files to codify them instead of storing them in the script itself. This would be less than 6 months. [https://www.evernote.com/shard/s315/sh/82219b0a-0031-4f3c-a9ca-401964d3b4c5/7af8ad1c743543fa20bf91201ecab2f0 Click HERE for script]
+
 
+
|-valign="top"
+
|Aromatics and dicarbonyl chemistry
+
|William Porter (MIT)<br>Tzung-May Fu (PKU)
+
|Science
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Document chemical mechanism in KPP file
+
|Examine differences in the lightning NOx schemes in GEOS-Chem and GMI
|Mat Evans (York)
+
|Christoph Keller (NASA/GMAO)<br>Lee Murray (Rochester)
|Structural
+
|
+
 
+
|-valign="top"
+
|Diurnal variability for NH3
+
|Henze group
+
|Science
+
|Daven Henze wrote:
+
*The FORTRAN code for implementing NH3 emissions diurnal variability is fairly straightforward.  However, it involves calculation of some quantities that depend upon met fields in the future, and we’re unsure of how to accomplish this in a robust and elegant manner. 
+
*In particular, we need to know the aerodynamic resistance and surface temperature at every emission time step over the course of a time period X, where X is the time resolution of the NH3 livestock emissions inventory being used.  This is typically monthly, but I could foresee future inventories having higher resolution, so maybe we want to consider this more generically. 
+
*One approach would be to pre-process this quantity at high resolution for all years, as is currently being done e.g. for dust emissions.  Another would be to add code to read in this information from met files online, but this would add some i/o to the model.
+
+
|-valign="top"
+
|Uptake of HNO3 onto coarse-mode sea salt
+
|Prasad Kasibhatla (Duke)
+
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[https://www.atmos-chem-phys.net/18/11185/2018/ Photolysis of NITs]
+
|HMS chemistry
|Prasad Kasibhatla (Duke)
+
|Jonathan Moch (Harvard)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Update heterogeneous processes to address high bias in nitrate
+
|Heterogeneous sulfate production
|Chris Holmes (FSU)
+
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|UCX-mini chemical mechanism
+
|BrC aging
|Sebastian Eastham (MIT)
+
|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
 
|Science
 
|Science
 
|
 
|
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
 
  
 
|-valign="top"
 
|-valign="top"
|[https://www.atmos-chem-phys-discuss.net/acp-2018-459/ Update to hygroscopic growth]
+
|Retire carbon-based units for VOCs
|Robyn Latimer (Dalhousie)<br>Randall Martin (Dalhousie)
+
|GCST
 
|Science
 
|Science
 
|
 
|
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Emissions updates
 
  
 
|-valign="top"
 
|-valign="top"
|EPA-derived BC/OA emissions over US (1990-2012)
+
|Update of US emissions to NEI16
|David Ridley (MIT)<br>Chi Li (Dalhousie)
+
|Barron Henderson (EPA)
 
|Science
 
|Science
 
|
 
|
*Emissions are available but need to be formatted properly.
 
*Could be ready by Fall-Winter 2018, depending on D. Ridley's availability
 
  
 
|-valign="top"
 
|-valign="top"
|[[FINNv1_biomass_burning_emissions|FINN biomass burning emissions for 2014-2016]]
+
|Updated surface ocean dissolved Hg0 from MITgcm
|Barron Henderson (US EPA)
+
|Yanxu Zhang (Nanjing)
 
|Science
 
|Science
 
|
 
|
*Pending receipt of corrected data files
 
  
 
|-valign="top"
 
|-valign="top"
|EPA NEI2011 Version EK
+
|One-Way Coupling w/ GISS ModelE3
|Zitely Tzompa-Sosa (CSU)<br>Emily Fischer (CSU)
+
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
|Science
+
|
+
*Estimate Late 2018 or sooner
+
 
+
|-valign="top"
+
|[[MASAGE_NH3_inventory|MASAGE inventory in HEMCO as default]]
+
|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
+
|Science
+
|
+
*MASAGE data is already available.
+
*GCST would need assistance from the user community to prepare HEMCO configuration files such that we do not double-count agricultural NH3 from MASAGE and other inventories.  This has been the main delay.
+
*F. Paulot has left the GC community.
+
 
+
|-valign="top"
+
|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
+
|Amos Tai (CUHK)
+
|Science
+
|
+
*Waiting on data
+
 
+
|-valign="top"
+
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|Fabien Paulot (NOAA/GFDL)
+
|Science
+
|
+
*Data files delivered to GCST (Jan 2016)
+
*Needs to be implemented via HEMCO, which is the primary delay
+
 
+
|-valign="top"
+
|Injection height for fire emissions
+
|Juliet Zhu (CSU)<br>Emily Fischer (CSU)
+
|Science
+
|
+
*Code was available in pre v9-02 (HEMCO)
+
*Code may have been ported to v11-02a but this option was not activated
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Surface fluxes and land usage updates
+
 
+
|-valign="top"
+
|Land cover module: Harmonized biosphere-atmosphere exchange and implementing CLM or manual land cover change experiments
+
|Jeff Geddes (BU)
+
|Science
+
|
+
*Has been added into v9-02 (pre-HEMCO)
+
*Bringing this up to v11 will probably need significant effort
+
*BU group/GCST will meet summer 2018 to discuss implementation
+
 
+
|-valign="top"
+
|Online O3-LAI coupling in GEOS-Chem
+
|Amos Tai (CUHK)
+
|Science
+
|
+
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Wet deposition updates
+
 
+
|-valign="top"
+
|Wet scavenging in mixed-phase clouds
+
|Bo Zhang (NIA/NASA Langley)
+
|Science
+
|
+
*Defer until paper is published
+
*Estimate Fall 2018
+
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
+
 
+
|-valign="top"
+
|Radon emission update
+
|Bo Zhang (NIA/NASA Langley)
+
|Science
+
|
+
*Defer until paper is published
+
*Estimate Fall 2018
+
 
+
|-valign="top"
+
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Colin Thackray (Harvard)<br>Carey Friedman (formerly MIT)<br>Helen Amos (formerly Harvard)
+
|Science
+
|
+
 
+
|-valign="top"
+
|New EDGAR sectoral inventory for Hg (1970-2012)
+
|Amanda Giang (MIT)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Archive GISS met fields from RCP scenarios for community
+
|Lee Murray (Rochester)
+
|Science
+
|
+
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|GCHP updates
+
 
+
|-valign="top"
+
|New version of MAPL
+
|GMAO<br>Lizzie Lundgren (GCST)
+
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Flux ingestion
+
|Shared Socioeconomic Pathways Emission Inventories
|Sebastian Eastham (MIT)
+
|Hong Liao (NUIST)
 
|Science
 
|Science
 
|
 
|
 
|-valign="top"
 
|Use CMake to simplify GCHP build process
 
|Liam Bindle (Dalhousie)
 
|Structural
 
|
 
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Structural updates
 
 
|-valign="top"
 
|[[FlexGrid|FlexGrid Stage 2: Enable nested simulations over any custom domains]]
 
|Jiawei Zhuang (Harvard)<br>Melissa Sulprizio ([[GCST]])
 
|Structural
 
|
 
 
|-valign="top"
 
|Clean up SOA diagnostics
 
|GCST
 
|Structural
 
|
 
*GCST has implemented many existing SOA diagnostics in netCDF
 
*GCST would need help from the community to streamline these diagnostics
 
 
|-valign="top"
 
|Calculation consistency throughout code: surface area, HGF (via species database)
 
|GCST
 
|Structural
 
|
 
 
|-valign="top"
 
|Harmonizing Henry's Law coefficients across wet and dry deposition
 
|[[GCST]]
 
|Science
 
|
 
*Work not started yet. Will need input from the community.
 
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
 
 
|-valign="top"
 
|CESM-GC offline coupling in standard model + benchmark
 
|Rokjin Park (SNU)<br>Daniel Rothenberg (MIT)
 
|Science
 
|
 
*Rokjin Park says code is ready
 
*Waiting on clarification in which version this is implemented in.
 
  
 
|}
 
|}
  
--[[User:Lizzie Lundgren|Lizzie Lundgren]] ([[User talk:Lizzie Lundgren|talk]]) 15:11, 29 June 2018 (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) ===
Line 608: Line 293:
 
!width="200px"|Author(s)
 
!width="200px"|Author(s)
 
!width="100px"|Type
 
!width="100px"|Type
!width="300px"|Status
+
!width="300px"|Notes
  
 
|-valign="top"
 
|-valign="top"
|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
+
|Update OCS simulation in the standard code
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Kevin Bowman (JPL)
 
|Science
 
|Science
 
|
 
|
*Delivered to GCST (Nov 2017)
 
*Needs to be added as a HEMCO extension, but converting from ancient v9-01-01 code may take significant effort.
 
  
 
|-valign="top"
 
|-valign="top"
|MEIC emissions over China (2000-2015)
+
|Examine what are the differences in the PSC implementation in GEOS-Chem and GMI and assess the implications of these differences for startospheric ozone
|Lu Shen (Harvard)<br>Melissa Sulprizio (Harvard)
+
|Susan Strahan (Goddard)<br>Sebastian Eastham (MIT)
 
|Science
 
|Science
 
|
 
|
*Defer until MEIC paper is published
 
  
 
|-valign="top"
 
|-valign="top"
|GISS-GC (ICECAP/GCAP2) in standard model + benchmark
+
|Rediagnosis of RAS convection in GEOS-Chem
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
|Science
+
|Lee Murray replied:
+
*"I would say 6-12 months to be safe, but the goal is to have it done by the end of summer 2018.  There will actually be very minimal updates to GEOS-Chem; most of the updates are to modify the GISS model to output MERRA2-like data, to facilitate integration with GCHP and future updates to the CTM."
+
 
+
|-valign="top"
+
|GISS-GC GCHP
+
|Lee Murray (Rochester)<br>Pengfei Liu (Harvard)<br>Yang Li (Harvard)
+
 
|Science
 
|Science
 
|
 
|
*Rochester and Harvard groups are coordinating, to avoid duplication of effort
 
  
 
|-valign="top"
 
|-valign="top"
|CESM-GC GCHP
+
|New schedule for tracer transport benchmarks (FP change, scavenging change, or major release)
|Seb Eastham (MIT)
+
|Andrea Molod (NASA/GMAO)
 
|Science
 
|Science
 
|
 
|
*Seb Eastham is now the lead developer.
 
*Estimate late 2018 or early 2019; validation will take time
 
  
 
|-valign="top"
 
|-valign="top"
|Additional modifications for [[FlexChem]], including:
+
|Updated cloud water pH
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Viral Shah (Harvard)<br>Jonathan Moch (Harvard)
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
|[[GCST]]
+
|Structural
+
|
+
*Mike Long, who was the principal proponent behind these updates, has since left the GC community.
+
*We are not sure who will take this over
+
 
+
|-valign="top"
+
|Dynamic fire modeling/prediction
+
|Shiliang Wu (MNT)
+
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Interannually varying ocean model BCs for Hg from ocean model
+
|Methylethylketone chemistry
|Colin Thackray (Harvard)
+
|Jared Brewer (CSU)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|PAH & PFCA simulations
+
|Add sulfate dependence to SOA yield from isoprene in simple SOA
|Peter Ivatt (York)<br>Mat Evans (York)<br>Noelle Selin (MIT)<br>Colin Thackray (Harvard)
+
|Elo&iuml;se Marais (Leicester)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|CH4 in full chemistry simulation
+
|Trace metal simulation
|Seb Eastham (Harvard)
+
|Junwei Xu (Dalhousie)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Standard future land use maps (PFT, LAI) for RCP/CMIP6 simulations
+
|Hg gas-phase photo-reduction
|Colette Heald (MIT)<br>Loretta Mickley (Harvard)
+
|Colin Thackray (Harvard)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive GISS met fields from CMIP6 scenarios for community
+
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
|Lee Murray (Rochester)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Updates to cold-temperature deposition
+
|Lyatt Jaegle (UW)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Simple parameterization for CO2-O3 dependence of stomatal resistance
+
 
|Amos Tai (CUHK)
 
|Amos Tai (CUHK)
 
|Science
 
|Science
Line 706: Line 356:
  
 
|-valign="top"
 
|-valign="top"
|NH3 emissions over China
+
|Canopy Physics Model
|Lin Zhang (PKU)
+
|Sam Silva (MIT)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Using GEOS-Chem within GEOS-5
+
|Landcover/Fire Emissions Offline LPJlmfire
 
|Loretta Mickley (Harvard)
 
|Loretta Mickley (Harvard)
|Science
 
|
 
 
|-valign="top"
 
|Carbon cycle outputs in xCO2, xCH4 as a diagnostic
 
|Beata Bukosa (Wollongong)<br>Dylan Jones (UofT)
 
|Science
 
|
 
 
|-valign="top"
 
|Seasonal EMEP emissions back to 1980
 
|Mat Evans (York)
 
|Science
 
|
 
 
|-valign="top"
 
|Updates to NO2 dry deposition
 
|Brian Boys (Dalhousie)
 
|Science
 
|
 
 
|-valign="top"
 
|APM update and integration with most recent GEOS-Chem version
 
|Gan Luo (SUNY Albany)
 
|Structural
 
|
 
 
|-valign="top"
 
|Cosmogenic tracer production
 
|Lee Murray (Rochester)
 
|Science
 
|
 
 
|-valign="top"
 
|Explore resolution-consistent dust emissions
 
*Make high-res concentrations or mass fluxes available offline, implement in met field processing
 
|David Ridley (MIT)<br>GCST<br>Nested Model WG
 
|Science
 
|
 
 
|-valign="top"
 
|Dust emissions at nested-grid resolutions
 
|Yuxuan Wang (U. Houston)<br>Jun Wang (U. Iowa)
 
|Science
 
|
 
*Check for overlap with resolution-consistent dust emissions above
 
 
|-valign="top"
 
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Update SO2 scavenging in convective updrafts for consistency]]
 
|Duncan Fairlie (NASA/LARC)
 
|Science
 
|
 
 
|-valign="top"
 
|Sea salt emission from sea ice
 
|Jiayue Huang (UW)
 
 
|Science
 
|Science
 
|
 
|
Line 775: Line 369:
 
|}
 
|}
  
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 19:42, 24 May 2018 (UTC)
+
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
  
 
=== Longer term (12-24 months)===
 
=== Longer term (12-24 months)===
Line 784: Line 378:
 
!width="200px"|Author(s)
 
!width="200px"|Author(s)
 
!width="100px"|Type
 
!width="100px"|Type
!width="300px"|Status
+
!width="300px"|Notes
  
 
|-valign="top"
 
|-valign="top"
|GCHP stretched grid
+
|Implement isotope simulation for CO and CH4 in GCHP
|Jiawei Zhuang (Harvard)
+
|Science
+
|
+
 
+
|-valign="top"
+
|1/8 degree nested-grid simulations with GEOS-FP
+
|Nested Model WG
+
|Science
+
|
+
*Wait for more interest
+
 
+
|-valign="top"
+
|Embedding GEOS-Chem into CESM
+
|Jean-Francois Lamarque (NCAR)
+
|Science
+
|
+
*NOTE: Seb Eastham is already working on this
+
 
+
|-valign="top"
+
|Adjoint of carbon cycle simulation in GCHP
+
|Kevin Bowman (JPL)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Isoprene chemistry v2 (new Caltech update)
+
|Kelvin Bates (Caltech)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Contemporary land cover: developing historical and updated GEOS-Chem land cover maps based on satellite remote sensing
+
|Jeff Geddes (BU)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Farquhar-Ball-Barry model to calculate stomatal resistance
+
|Amos Tai (CUHK)<br>Jeff Geddes (BU)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Impacts of chemistry on ecosystem/carbon cycle
+
|Kevin Bowman (JPL)<br>Anthony Bloom (JPL)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Improved lightning emission scheme
+
 
|Lee Murray (Rochester)
 
|Lee Murray (Rochester)
 
|Science
 
|Science
Line 843: Line 387:
  
 
|-valign="top"
 
|-valign="top"
|Resolution-independent lightning NOx
+
|Migrate LETFK DA scheme to GCHP
|Lee Murray (Rochester)
+
|Kazu Miyazaki (JPL)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Bidirectional NH3 emissions
+
|Super fast chemistry scheme
|Juliet Zhu (CSU)
+
|Benjamin Brown-Steiner (AER)<br>Makoto Kelp (Harvard)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Country-based weekday/weekend variability for EDGAR 4.2
+
|Add non-volatile cations to ISORROPIA
|Lee Murray (Rochester)<br>Christoph Keller (Harvard)
+
|Becky Alexander (UW)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Update keytone photolysis
+
|Update Europe emissions to EMEP 2016
|Jared Brewer (CSU)<br>Emily Fischer (CSU)
+
|Eloise Marais (Leicester)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Small alkyl nitrates
+
|MEGAN3
|Jenny Fisher (Wollongong)
+
|Sam Silva (MIT)<br>Jen Kaiser (GIT)<br>Yuxuan Wang (UH)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|YIBS-GC chemistry-biosphere-fire coupling
+
|DMS oxidation scheme updating
|Loretta Mickley (Harvard)<br>Xu Yue (IAP)
+
|Becky Alexander (UW)<br>Qianjie Chen (UW)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Nitrogen-LAI coupling
+
|Streamlining of specialty simulations through HEMCO and KPP
|Lin Zhang (PKU)<br>Amos Tai (CUHK)
+
|GCST<br>Chris Holmes (FSU)<br>Colin Thackray for POPs (Harvard)<br>Peter Ivatt (York) for PAH
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Implementing humidity/VPD dependence of dry deposition
+
|Hg in WRF-GC
|Jennifer Murphy (U. Toronto)
+
|Yanxu Zhang (Nanjing)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|SO2 wet scavenging
+
|Hg with blowing snow
|Duncan Fairlie (NASA Langley)
+
|Yanxu Xhang (Nanjing)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Heterogeneous sulfate production
+
|Updated treatment of Hg in ocean
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Science
+
|
+
 
+
|-valign="top"
+
|MOSAIC implementation
+
|Sebastian Eastham (Harvard)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Particle size climatology
+
|Fangqun Yu (SUNY Albany)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Sea salt/dust size distribution
+
|David Ridley (MIT)<br>Colette Heald (MIT)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Updates to GTMM
+
|Rebecca Stern (Harvard)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Tracer transport ocean
+
 
|Chris Holmes (FSU)
 
|Chris Holmes (FSU)
 
|Science
 
|Science
Line 933: Line 447:
  
 
|-valign="top"
 
|-valign="top"
|Include Hg in full chemistry simulation
+
|GTMM updates
|Noelle Selin (MIT)
+
|Ben Geyman (Harvard)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Goddard seasonal weather prediction in GCHP
+
|Complex / multicomplex variables
|Kevin Bowman (JPL)
+
|Shannon Capps (Drexel)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Climate index diagnostics (drought, etc.)
+
|Build KPP when you compile GC
|Chemistry-ecosystems-climate WG
+
|GCST
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Joint CO/CO2/CH4 simulation
+
|Restructure source code folders
|Nicholas Deutscher (U. Wollongong)
+
|GCST
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Carbon coupling: oceans and terrestrial models
+
|Archived CMIP6 Met Products for GEOS-Chem Input
|Chris Holmes (FSU)
+
|Lee Murray (Rochester)
 
|Science
 
|Science
 
|
 
|
*Ocim-pure physical transport, ECCO-Darwin ocean biogeochemistry
 
  
|-valign="top"
+
|}
|DMS oxidation scheme updating
+
|Qianjie Chen (UW)<br>Chemistry WG
+
|Science
+
|
+
  
|-valign="top"
+
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
|Limiting NH3 uptake due to OA
+
|Rachel Silvern (Harvard)
+
|Science
+
|
+
  
|-valign="top"
+
----------------
|[[GEOS-Chem_species_units|Uniformity of units throughout GEOS-Chem components]]
+
|[[GCST]]
+
|Structural
+
|
+
 
+
|}
+
  
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 15:32, 23 May 2018 (UTC)
+
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''

Latest 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)


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