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

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(→‎Over the horizon (6-12 months))
 
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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 [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 ==
  
−
== Priorities assigned to upcoming GEOS-Chem versions ==
+
See the links below for items merged and awaiting release.
−
 
+
−
=== 12.1.0 ===
+
−
 
+
−
<span style="color:darkorange">'''This version is currently in development. See [[GEOS-Chem_12#12.1.0|the ''GEOS-Chem 12'' wiki page]] for details.'''</span>
+
−
 
+
−
=== 12.2.0 ===
+
−
 
+
−
The items listed below are slated to be included in GEOS-Chem 12.2.0.  This is a feature release which will be benchmarked with a 1-month benchmark simulation and a 1-year Rn-Pb-Be benchmark simulation.
+
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
−
!width="500px"|Feature
+
!width="300px"|Mergeable at any time
−
!width="200px"|Submitted by
+
!width="200px"|Version in development
−
!width="100px"|Type
+
−
!width="300px"|Status
+
−
 
+
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Features NOT affecting the full-chemistry simulation:
+
  
 
|-valign="top"
 
|-valign="top"
−
|[[Transport_Working_Group#Common_set_of_tracers_in_GEOS-Chem_and_GEOS|Common set of tracers in GEOS-Chem and GEOS]]
+
|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
−
|Transport WG<br>[[GCST]]
+
|align="center"|'''[[GEOS-Chem 14.4.0]]'''
−
|Benchmarking
+
−
|
+
−
*[[Transport_Working_Group#List_of_tracers_in_GEOS|A set of passive species]] will be added to the GEOS-Chem Rn-Pb-Be benchmark simulation. This will facilitate comparisons between GEOS-Chem "Classic" and/or GCHP vs. the NASA GEOS-DAS system.
+
  
 
|}
 
|}
  
−
=== 12.3.0 ===
+
== Feature integration in progress ==
  
−
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.
+
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.  
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
−
!width="500px"|Feature
+
!width="200px"|Feature
−
!width="200px"|Submitted by
+
!width="200px"|Contributor(s)
−
!width="100px"|Type
+
!width="100px"|Model scope
−
!width="300px"|Status
+
!width="100px"|Ease of implementation
−
 
+
!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]]
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
−
|Seb Eastham (Harvard)
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
−
|Science
+
|Emissions
 +
|Simple
 
|
 
|
−
*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://github.com/geoschem/geos-chem/issues/1747 Parameterization of SNA and OM dry size]
−
|Jenny Fisher (Wollongong) <br>Barron Henderson (US EPA)
+
|Haihui Zhu (WashU)
−
|Science
+
|Aerosols
 +
|Medium
 
|
 
|
−
*Will require reworking of LAI regridding in GEOS-Chem Classic and pre-processing land map data
+
*[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"
−
|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#Updated_PFT_file|Updated PFT file for MEGAN]]
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
−
|Jenny Fisher (Wollongong)<br>Dylan Millet (UMN)
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
−
|Science
+
|Emissions
 +
|Medium
 
|
 
|
−
*Delivered to GCST (May 2018)
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-valign="top"
−
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+
|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
−
|Sebastian Eastham (MIT)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GC-Classic
 +
|Medium
 
|
 
|
 +
*[https://github.com/geoschem/HEMCO/issues/18 hemco issue #18]
  
 
|-valign="top"
 
|-valign="top"
−
|[[Volcanic_SO2_emissions_from_Aerocom#OMI-based_volcanic_emissions|OMI-based Volcanic emissions 2005-2012]]
+
|Capture all trop and PBL height changes in budget diagnostics
−
|Cui Ge (U. Iowa)<br>Jun Wang (U. Iowa)
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
−
|Science
+
|Diagnostics
 +
|Medium
 
|
 
|
−
*Working with developers to obtain alternate data for Oct-Dec 2012.
+
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
  
 
|}
 
|}
  
−
== Priorities not yet assigned to a particular version ==
+
== Prioritized and in the queue ==
  
−
The following items have been identified as priorities for GEOS-Chem, but have not yet been assigned to a particular GEOS-Chem version.
+
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
−
 
+
−
=== Ready to go in ===
+
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
−
!width="500px"|Feature
+
!width="200px"|Feature
−
!width="200px"|Submitted by
+
!width="200px"|Contributor(s)
−
!width="100px"|Type
+
!width="100px"|Model scope
−
!width="300px"|Status
+
!width="100px"|Ease of implementation
−
 
+
!width="100px"|Delivery status
−
|-
+
!width="300px"|Notes and References
−
!colspan="4" bgcolor="#CCFFFF"|Emissions and surface fluxes updates
+
  
 
|-valign="top"
 
|-valign="top"
−
|Carbon bottom up fluxes: anthro, ocean, land
+
|ALK4 & R4N2 chemistry
−
|Kevin Bowman (JPL)
+
|Jared Brewer (UMN)
−
|Science
+
|Chemistry
−
|Kevin Bowman wrote:
+
|TBD
−
*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:
+
|Not delivered
−
**CMSFluxFire
+
|
−
**CMSFluxFossilfuel
+
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
−
**CMSFluxNEE
+
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., 2023.]
−
**CMSFluxOcean
+
−
 
+
−
 
+
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Wet deposition updates
+
  
 
|-valign="top"
 
|-valign="top"
−
|Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc.
+
|Mass flux regridding fix in MAPL
−
|Sarah Safieddine (MIT)<br>GCST
+
|Tom Clune (GMAO)<br>Seb Eastham (MIT)
−
|Science
+
|GCHP input regridding
 +
|Medium
 
|
 
|
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
 
−
 
−
|-valign="top"
 
−
|Sea salt aerosol alkalinity
 
−
|Qianjie Chen (UW)<br>Becky Alexander (UW)<br>Xuan Wang (Harvard)
 
−
|Science
 
 
|
 
|
−
*UW version delivered to GCST (Nov 2017)
+
*[https://github.com/geoschem/GCHP/issues/377 GCHP Issue #377]
 +
*'''Currently on hold, as the submitted update results in zero diff'''
  
 
|-valign="top"
 
|-valign="top"
−
|VBS SOA option
+
|New version of CEDS at 0.1 deg
−
|Rokjin Park (SNU)
+
|Dandan Zhang (WashU)
−
|Science
+
|Emissions
 +
|Simple
 +
|Delivered
 
|
 
|
−
*Code has been implemented in the ancient v9-01-02 version. 
+
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
−
*Bringing this up to the current SOA model (simple SOA, complex SOA) will likely involve significant effort.
+
*'''Currently on hold while an issue with seasonality in the new CEDS data is being investigated by the authors.'''
  
−
|-
+
|}
−
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
+
  
−
|-valign="top"
+
== Ready to go in ==
−
|AMAP/UNEP 2035 for Hg simulation
+
−
|Helene Angot (MIT)
+
−
|Science
+
−
|
+
−
*Data is available, but has not been transferred to GCST yet
+
  
−
|-valign="top"
+
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.
−
|Oxidant fields from v10 for 2006-2012
+
 
−
*3D chemical source for CO2, CO
+
{| border=1 cellspacing=0 cellpadding=5
−
*OH for tagged CO & CH4
+
|-bgcolor="#CCCCCC"
−
|Dylan Jones (UofT)
+
!width="200px"|Feature
−
|Science
+
!width="200px"|Contributor(s)
−
|
+
!width="100px"|Model scope
−
*Will make data files available on ftp site
+
!width="100px"|Delivery status
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Africa nested-grid for GEOS-FP and MERRA-2
+
|KORUS-AQ emissions for East Asia (as an option)
−
|Eloise Marais (U. Birmingham)
+
|Katie Travis (NASA)
−
|Science
+
|Emissions
 +
|Simple
 
|
 
|
−
*Delivered to GCST (Dec 2017)
 
−
*Could be implemented with Jiawei Zhuang's FlexGrid
 
  
 
|-valign="top"
 
|-valign="top"
−
|West Africa nested-grid for GEOS-FP
+
|Geologic emission of ethane and propane
−
|Mat Evans (York)<br>Eleanor Morris (York)
+
|Matthew Rowlinson and Mat Evans(York)
−
|Science
+
|Emissions
 +
|Delivered<br>Jan 2023
 
|
 
|
−
*Could be implemented with Jiawei Zhuang's FlexGrid
+
*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"
−
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
−
|Becky Alexander (UW)
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Science
 
|Science
 +
|Delivered<br>Feb 2021
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
  
 
|-valign="top"
 
|-valign="top"
−
|Arsenic simulation
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
−
|Shiliang Wu (MT)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
−
|Science
+
|Emissions
 +
|Delivered<br>Jul 2021
 
|
 
|
−
 
+
*Data involves many files- need to think about temporal frequency
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|GCHP updates
+
  
 
|-valign="top"
 
|-valign="top"
−
|None
+
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
−
|
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
−
|
+
|Chemistry
 +
|Delivered<br>June 2023
 
|
 
|
−
 
+
*[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
−
!colspan="4" bgcolor="#CCFFFF"|Structural updates
+
  
 
|-valign="top"
 
|-valign="top"
−
|Benchmark of stratospheric simulation
+
|DMS Chemistry
−
|Dylan Jones (U. Toronto)
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
−
|Benchmarking
+
|Chemistry
 +
|Not delivered
 
|
 
|
−
*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"
−
|Add total column O3 to benchmarks
+
|Organic acids (RCOOH)
−
|Chris Holmes (FSU)<br>[[GCST]]
+
|Katie Travis (NASA)
−
|Benchmarking
+
|Chemistry
 +
|Not delivered
 
|
 
|
−
*Deferred until GEOS-Chem 12
 
−
*Also note: GCST plans on migrating benchmark plotting code from IDL to Python in v11-03
 
  
 
|-valign="top"
 
|-valign="top"
−
|ObsPack diagnostic as netCDF replacement for planeflight_mod.F
+
|Improve carbon & nitrogen conservation in reactions
−
|Andy Jacobson (NOAA/ESRL)
+
|Kelvin Bates (Harvard)
−
|Structural
+
|Chemistry
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (May 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|Further structural updates to facilitate interfacing GEOS-Chem with external models (e.g. WRF, CAM, CESM)
+
|Blowing snow sea salt in TOMAS
−
|[[GCST]]
+
|Betty Croft (Dalhousie)
−
|Structural
+
|Aerosols
 +
|Not delivered
 
|
 
|
−
*Ongoing
 
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
 
  
 
|-valign="top"
 
|-valign="top"
−
|Archival of roughness length for temperature z0T
+
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
−
|[[GCST]]
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
−
|Met processing
+
|Hg simulation
 +
|Not delivered
 
|
 
|
−
*Work has not yet begun
 
−
|}
 
−
 
−
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 19:04, 2 August 2018 (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"|Status
 
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Transport updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://www.geosci-model-dev-discuss.net/gmd-2017-125/ GEOS resolution & subgrid convection]
+
|WRF-GC Hg simulation
−
|Karen Yu (Harvard)
+
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
−
|Science
+
|Hg simulation<br>WRF-GC
 +
|Not delivered
 
|
 
|
−
*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
 
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|N2O5 hydrolysis updates
+
|Updated HgII gas-partical partitioning
−
|Viral Shah (UW)
+
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
−
|Science
+
|Hg simulation
 +
|Not delivered
 
|
 
|
−
*Defer until paper is submitted (Summer 2018)
+
*Should be option, not default
−
*Code from v10 (SMVGEAR) needs to be translated to v11 (FlexChem); this may take some effort
+
  
 
|-valign="top"
 
|-valign="top"
−
|H2 chemistry in UCX
+
|Dry deposition to F90 (readability)
 
|Chris Holmes (FSU)
 
|Chris Holmes (FSU)
−
|Science
+
|Dry deposition
 +
|Not delivered
 
|
 
|
−
*Defer until paper is submitted
 
−
*Estimate Fall 2018 or sooner
 
  
−
|-valign="top"
+
|}
−
|Updated chlorine chemistry
+
−
|Xuan Wang (Harvard)
+
−
|Science
+
−
|
+
−
*Defer until the paper is submitted
+
  
−
|-valign="top"
+
== Almost there (< 6 months) ==
−
|[[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]]
+
−
|Katie Travis (MIT)
+
−
|Structural
+
−
|
+
−
*Defer until the paper is submitted
+
  
−
|-valign="top"
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
−
|OH + NO2 rate update
+
−
|Barron Henderson (EPA)
+
−
|Science
+
−
|
+
  
−
|-valign="top"
+
{|border=1 cellspacing=0 cellpadding=5
−
|[[Chemistry_Issues#Script_for_evaluating_carbon_balance|Script for checking N, C, etc. balance in chemistry mechanism]]
+
|- bgcolor="#cccccc"
−
|Barron Henderson (EPA)
+
!width="200px"|Feature
−
|Software
+
!width="200px"|Contributor(s)
−
|Barron Henderson wrote:
+
!width="100px"|Model scope
−
*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]
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Aromatics and dicarbonyl chemistry
+
|PPN+hv, PPN+OH
−
|William Porter (MIT)<br>Tzung-May Fu (PKU)
+
|Robert Ryan (UCL)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Document chemical mechanism in KPP file
+
|MBO
−
|Mat Evans (York)
+
|Michael Vermeuel (UMN)
−
|Structural
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Diurnal variability for NH3
+
|Initial conditions for CH4 correcting background and stratospheric biases
−
|Henze group
+
|Todd Mooring (Harvard)
−
|Science
+
|Methane simulation
−
|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
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[https://www.atmos-chem-phys.net/18/11185/2018/ Photolysis of NITs]
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
−
|Prasad Kasibhatla (Duke)
+
|Bob Yantosca (Harvard)
−
|Science
+
|Aerosols<br>Structural
 
|
 
|
−
 
+
*Ongoing
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Emissions updates
+
  
 
|-valign="top"
 
|-valign="top"
−
|Grid-independent lightning NOx emissions (3-hourly)
+
|Re-binning of off-line sea salt and dust for use in TOMAS
−
|Lee Murray (Rochester)
+
|Betty Croft (Dalhousie)
−
|Science
+
|Aerosols
 
|
 
|
−
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
−
|Grid-independent dust emissions (hourly)
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
−
|David Ridley (MIT)
+
|Betty Croft (Dalhousie)
−
|Science
+
|Aerosols
 
|
 
|
−
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
−
|Grid-independent biogenic emissions (hourly)
+
|ML algorithms for bulk aerosols
−
|Jintai Lin (PKU)
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
−
|Science
+
|Aerosols
 
|
 
|
−
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
−
|Grid-independent sea salt emissions (hourly)
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
−
|Jintai Lin (PKU)
+
|Shixian Zhai (Harvard)
−
|Science
+
|Aerosols
 
|
 
|
−
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
−
|EPA-derived BC/OA emissions over US (1990-2012)
+
|Updates to Hodzic SOA scheme
−
|David Ridley (MIT)<br>Chi Li (Dalhousie)
+
|Jared Brewer (Harvard)
−
|Science
+
|Aerosols
 
|
 
|
−
*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]]
+
|Automated reduction in isoprene scheme
−
|Barron Henderson (US EPA)
+
|Dan Westervelt (Lamont-Doherty)
−
|Science
+
|Aerosols
 
|
 
|
−
*Pending receipt of corrected data files
 
  
 
|-valign="top"
 
|-valign="top"
−
|EPA NEI2011 Version EK
+
|Brown carbon chemsitry
−
|Zitely Tzompa-Sosa (CSU)<br>Emily Fischer (CSU)
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
−
|Science
+
|Aerosols
 
|
 
|
−
*Estimate Late 2018 or sooner
 
  
 
|-valign="top"
 
|-valign="top"
−
|GFAS biomass burning emissions
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
−
|Mat Evans (York)
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
−
|Science
+
|Convection
−
|Mat Evans wrote:
+
−
*For the sake of the documentation and the wiki I think we should replicate the standard benchmark year on our system, and then switch on the GFAS emissions instead of the GFED and then have the GFAS emissions distributed by hieight.  We can do that and then prepare some plots for the documentation.  Estimate summer 2018.
+
−
 
+
−
|-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"
 
|-valign="top"
−
|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
−
|Amos Tai (CUHK)
+
|Jintai Lin (PKU)
−
|Science
+
|Emissions
 
|
 
|
−
*Waiting on data
+
*Horizontal resolution: 5km, temporal resolution: JJA mean
 +
*monthly data will be available at a later stage; please contact us
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|Updated biomass burning emission factors and species
−
|Fabien Paulot (NOAA/GFDL)
+
|Tess Carter (MIT)
−
|Science
+
|Emissions
 
|
 
|
−
*Data files delivered to GCST (Jan 2016)
 
−
*Needs to be implemented via HEMCO, which is the primary delay
 
  
 
|-valign="top"
 
|-valign="top"
−
|Injection height for fire emissions
+
|Updated offline sea salt emissions
−
|Juliet Zhu (CSU)<br>Emily Fischer (CSU)
+
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
−
|Science
+
|Emissions
 
|
 
|
−
*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"
 
|-valign="top"
−
|Land cover module: Harmonized biosphere-atmosphere exchange and implementing CLM or manual land cover change experiments
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
−
|Jeff Geddes (BU)
+
|Sam Silva (MIT)
−
|Science
+
|Emissions &<br>Science
 
|
 
|
−
*Has been added into v9-02 (pre-HEMCO)
+
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
−
*Bringing this up to v11 will probably need significant effort
+
*Needs to be updated to a more recent GEOS-Chem version
−
*BU group/GCST will meet summer 2018 to discuss implementation
+
  
 
|-valign="top"
 
|-valign="top"
−
|Online O3-LAI coupling in GEOS-Chem
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
−
|Amos Tai (CUHK)
+
|Bob Yantosca (Harvard)
−
|Science
+
|Model performance
 
|
 
|
−
 
+
*Ongoing (will be done as time allows)
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Wet deposition updates
+
  
 
|-valign="top"
 
|-valign="top"
−
|Wet scavenging in mixed-phase clouds
+
|Assess memory leak in GCHP
−
|Bo Zhang (NIA/NASA Langley)
+
|Killian Murphy (York)
−
|Science
+
|Model performance
 
|
 
|
−
*Defer until paper is published
+
*NOTE: Most memory leaks in GCHP have been fixed by [https://github.com/geoschem/geos-chem/pull/1353 geoschem/geos-chem PR #1353]. Will wait until MAPL3 to further assess.
−
*Estimate Fall 2018
+
−
 
+
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
+
  
 
|-valign="top"
 
|-valign="top"
−
|Radon emission update
+
|Hybrid MPI-OpenMP in GCHP
−
|Bo Zhang (NIA/NASA Langley)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
−
|Science
+
|Model performance
 
|
 
|
−
*Defer until paper is published
 
−
*Estimate Fall 2018
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Improve pressure handling in GCHP advection
−
|Colin Thackray (Harvard)<br>Carey Friedman (formerly MIT)<br>Helen Amos (formerly Harvard)
+
|Seb Eastham (MIT)<br>Yuanjian Zhang (WashU)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|New EDGAR sectoral inventory for Hg (1970-2012)
+
|Use ExtData2G as default GCHP input module
−
|Amanda Giang (MIT)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
−
|
+
|Will replace ExtData.rc with yaml file
−
 
+
−
|-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
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Flux ingestion
+
−
|Sebastian Eastham (MIT)
+
−
|Science
+
−
|
+
−
 
+
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Structural updates
+
−
 
+
−
|-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)
+
== Over the horizon (6-12 months) ==
  
−
=== Over the horizon (6-12 months) ===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
−
!width="500px"|Item
+
!width="200px"|Feature
−
!width="200px"|Author(s)
+
!width="200px"|Contributor(s)
−
!width="100px"|Type
+
!width="100px"|Model scope
−
!width="300px"|Status
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
+
|Snow / Icy Bromine
−
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
−
|Science
+
|Chemistry
 
|
 
|
−
*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)
+
|Monoterpene oxidation scheme
−
|Lu Shen (Harvard)<br>Melissa Sulprizio (Harvard)
+
|Jessica Haskins (MIT)
−
|Science
+
|Chemistry
 
|
 
|
−
*Defer until MEIC paper is published
 
  
 
|-valign="top"
 
|-valign="top"
−
|GISS-GC (ICECAP/GCAP2) in standard model + benchmark
+
|Fire related VOCs including furans
−
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|Lu Hu (UMT)<br>Lixu Jin (UMT)
−
|Science
+
|Chemistry
−
|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
+
 
|
 
|
−
*Rochester and Harvard groups are coordinating, to avoid duplication of effort
 
  
 
|-valign="top"
 
|-valign="top"
−
|CESM-GC GCHP
+
|Extension of UCX into the mesosphere
−
|Seb Eastham (MIT)
+
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
−
|Science
+
|Chemistry
 
|
 
|
−
*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:
+
|Methane flux ingestion
−
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Eloise Marais (UCL)
−
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
|Chemistry
−
|[[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"
 
|-valign="top"
−
|Dynamic fire modeling/prediction
+
|Dust non-sphericity impacts on surface chem and optical properties
−
|Shiliang Wu (MNT)
+
|Inderjeet Singh (WashU)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Interannually varying ocean model BCs for Hg from ocean model
+
|Size-resolved stratospheric aerosol
−
|Colin Thackray (Harvard)
+
|Seb Eastham (MIT)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|PAH & PFCA simulations
+
|Extend aerosol settling
−
|Peter Ivatt (York)<br>Mat Evans (York)<br>Noelle Selin (MIT)<br>Colin Thackray (Harvard)
+
|Eloise Marais (UCL)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|CH4 in full chemistry simulation
+
|Stratospheric aerosol APM
−
|Seb Eastham (Harvard)
+
|Fangqun Yu (SUNY)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Standard future land use maps (PFT, LAI) for RCP/CMIP6 simulations
+
|Plume-in-grid model
−
|Colette Heald (MIT)<br>Loretta Mickley (Harvard)
+
|Hongwei Sun (Harvard)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Archive GISS met fields from CMIP6 scenarios for community
+
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
 
|Lee Murray (Rochester)
 
|Lee Murray (Rochester)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to cold-temperature deposition
+
|Seb aircraft emissions beyond recent 2019 update
−
|Lyatt Jaegle (UW)
+
|Seb Eastham (MIT)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Simple parameterization for CO2-O3 dependence of stomatal resistance
+
|FRP-based fire emsisions for eastern US at 0.2 deg
−
|Amos Tai (CUHK)
+
|Charlie Fite (FSU)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|NH3 emissions over China
+
|Hg iodine chemistry
−
|Lin Zhang (PKU)
+
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Using GEOS-Chem within GEOS-5
+
|Hg simulation in GCHP
−
|Loretta Mickley (Harvard)
+
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Carbon cycle outputs in xCO2, xCH4 as a diagnostic
+
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
−
|Beata Bukosa (Wollongong)<br>Dylan Jones (UofT)
+
|Yanxu Zhang (Nanjing U.)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Seasonal EMEP emissions back to 1980
+
|Dry deposition diagnostics by land cover
−
|Mat Evans (York)
+
|Holly Nowell (FSU)
−
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to NO2 dry deposition
+
|Dry deposition process diagnostics
−
|Brian Boys (Dalhousie)
+
|Holly Nowell (FSU)
−
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|APM update and integration with most recent GEOS-Chem version
+
|Isotope simulation for CO and CH4 in GCHP
−
|Gan Luo (SUNY Albany)
+
−
|Structural
+
−
|
+
−
 
+
−
|-valign="top"
+
−
|Cosmogenic tracer production
+
 
|Lee Murray (Rochester)
 
|Lee Murray (Rochester)
−
|Science
+
|Carbon simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Explore resolution-consistent dust emissions
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
−
*Make high-res concentrations or mass fluxes available offline, implement in met field processing
+
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
−
|David Ridley (MIT)<br>GCST<br>Nested Model WG
+
|Emissions<br>CH4 simulation
−
|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
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem_species_units|Uniformity of units]]
+
|Modularization of aerosols code for interface with GOCART in GEOS
−
|[[GCST]]
+
|Christoph Keller (GMAO)
 
|Structural
 
|Structural
−
|Lizzie Lundgren wrote:
 
−
*We are not planning on resuming work to unify units in GEOS-Chem anytime soon. Any changes to units in the near future would be for better compatibility with other models, although none are currently planned. However, user consensus on preferred units would still be helpful to move the conversation forward.
 
−
 
−
|}
 
−
 
−
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 19:42, 24 May 2018 (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"|Status
 
−
 
−
|-valign="top"
 
−
|GCHP stretched grid
 
−
|Jiawei Zhuang (Harvard)
 
−
|Science
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|1/8 degree nested-grid simulations with GEOS-FP
+
|Improve load balancing in GCHP
−
|Nested Model WG
+
|Seb Eastham (MIT)
−
|Science
+
|Model performance
 
|
 
|
−
*Wait for more interest
 
  
 
|-valign="top"
 
|-valign="top"
−
|Embedding GEOS-Chem into CESM
+
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
−
|Jean-Francois Lamarque (NCAR)
+
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
−
|Science
+
|Transport
 
|
 
|
−
*NOTE: Seb Eastham is already working on this
 
  
 
|-valign="top"
 
|-valign="top"
−
|Adjoint of carbon cycle simulation in GCHP
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
−
|Kevin Bowman (JPL)
+
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
−
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Isoprene chemistry v2 (new Caltech update)
+
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
−
|Kelvin Bates (Caltech)
+
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
−
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Contemporary land cover: developing historical and updated GEOS-Chem land cover maps based on satellite remote sensing
+
|MAPL version 3
−
|Jeff Geddes (BU)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
−
|
+
|Will include History wildcard handling in GCHP
  
−
|-valign="top"
 
−
|Farquhar-Ball-Barry model to calculate stomatal resistance
 
−
|Amos Tai (CUHK)<br>Jeff Geddes (BU)
 
−
|Science
 
−
|
 
  
 
|-valign="top"
 
|-valign="top"
−
|Impacts of chemistry on ecosystem/carbon cycle
+
|Migrate benchmark meteorology from MERRA2 to GEOS-IT
−
|Kevin Bowman (JPL)<br>Anthony Bloom (JPL)
+
|GCST
−
|Science
+
|Benchmarking
 
|
 
|
  
−
|-valign="top"
+
|}
−
|Improved lightning emission scheme
+
−
|Lee Murray (Rochester)
+
−
|Science
+
−
|
+
  
−
|-valign="top"
+
== Longer term (12-24 months)==
−
|Resolution-independent lightning NOx
+
−
|Lee Murray (Rochester)
+
−
|Science
+
−
|
+
  
−
|-valign="top"
+
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.
−
|Bidirectional NH3 emissions
+
−
|Juliet Zhu (CSU)
+
−
|Science
+
−
|
+
  
−
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
−
|Country-based weekday/weekend variability for EDGAR 4.2
+
|- bgcolor="#cccccc"
−
|Lee Murray (Rochester)<br>Christoph Keller (Harvard)
+
!width="200px"|Feature
−
|Science
+
!width="200px"|Contributor(s)
−
|
+
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Update keytone photolysis
+
|Updates to Aromatic chemistry
−
|Jared Brewer (CSU)<br>Emily Fischer (CSU)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Small alkyl nitrates
+
|Nitrate photolysis
−
|Jenny Fisher (Wollongong)
+
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|YIBS-GC chemistry-biosphere-fire coupling
+
|In aerosol chemistry Halogens
−
|Loretta Mickley (Harvard)<br>Xu Yue (IAP)
+
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Nitrogen-LAI coupling
+
|Benchmark box model of GC Chemistry
−
|Lin Zhang (PKU)<br>Amos Tai (CUHK)
+
|Katie Travis (NASA)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Implementing humidity/VPD dependence of dry deposition
+
|Alkyl nitrates Alk7, PHAN
−
|Jennifer Murphy (U. Toronto)
+
|Katie Travis (NASA)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|SO2 wet scavenging
+
|Add stratospheric ozone species to full-chemistry simulations
−
|Duncan Fairlie (NASA Langley)
+
|Lee Murray (Rochester)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Heterogeneous sulfate production
+
|Perchlorate chemistry
−
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Yuk Chun Chan (UWAB)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|MOSAIC implementation
+
|Explicit heterogeneous sulfate chemistry
−
|Sebastian Eastham (Harvard)
+
|Katie Travis (NASA)<br>Becky Alexander (UT)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Particle size climatology
+
|HOx and ozone "emissions" from lightning as option in model to play with
−
|Fangqun Yu (SUNY Albany)
+
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt/dust size distribution
+
|Sea salt aerosol from sea ice leads
−
|David Ridley (MIT)<br>Colette Heald (MIT)
+
|Hannah Horowitz (U. Illinois)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to GTMM
+
|Drought-stress algorithm
−
|Rebecca Stern (Harvard)
+
|Wei Li (U. Houston)
−
|Science
+
 
|
 
|
−
 
−
|-valign="top"
 
−
|Tracer transport ocean
 
−
|Chris Holmes (FSU)
 
−
|Science
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Include Hg in full chemistry simulation
+
|Biomass burning injection height profiles
−
|Noelle Selin (MIT)
+
|Inderjeet Singh (WashU)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Goddard seasonal weather prediction in GCHP
+
|OCIM integration
−
|Kevin Bowman (JPL)
+
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
−
|Science
+
 
|
 
|
−
 
−
|-valign="top"
 
−
|Climate index diagnostics (drought, etc.)
 
−
|Chemistry-ecosystems-climate WG
 
−
|Structural
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Joint CO/CO2/CH4 simulation
+
|Updating landcover products in GEOS-Chem
−
|Nicholas Deutscher (U. Wollongong)
+
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
−
|Science
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Carbon coupling: oceans and terrestrial models
+
|Dry deposition physical improvement
 
|Chris Holmes (FSU)
 
|Chris Holmes (FSU)
−
|Science
+
|Dry deposition
 
|
 
|
−
*Ocim-pure physical transport, ECCO-Darwin ocean biogeochemistry
 
  
 
|-valign="top"
 
|-valign="top"
−
|DMS oxidation scheme updating
+
|TOMAS WRF-GC in regional Thailand simulation
−
|Qianjie Chen (UW)<br>Chemistry WG
+
|Win Trivitayanurak (Chulalongkorn U)
−
|Science
+
|Aerosols
−
|
+
−
 
+
−
|-valign="top"
+
−
|Limiting NH3 uptake due to OA
+
−
|Rachel Silvern (Harvard)
+
−
|Science
+
 
|
 
|
  
 
|}
 
|}
−
 
−
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 15:32, 23 May 2018 (UTC)
 

Latest revision as of 16:59, 30 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
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)
Assess memory leak in GCHP Killian Murphy (York) Model performance
Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT)
Killian Murphy (York) 		Model performance
Improve pressure handling in GCHP advection Seb Eastham (MIT)
Yuanjian Zhang (WashU) 		GCHP
Use ExtData2G as default GCHP input module Lizzie Lundgren (Harvard) GCHP Will replace ExtData.rc with yaml file

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
MAPL version 3 Lizzie Lundgren (Harvard) GCHP Will include History wildcard handling in GCHP


Migrate benchmark meteorology from MERRA2 to GEOS-IT GCST Benchmarking

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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