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

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(→‎Feature integration in progress)
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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.
  
−
=== 12.3.0 ===
+
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="300px"|Mergeable at any time
 +
!width="200px"|Version in development
  
−
<span style="color:darkorange">'''This version is currently in development. See [[GEOS-Chem_12#12.3.0|the ''GEOS-Chem 12'' wiki page]] for details.'''</span>
+
|-valign="top"
 +
|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
 +
|align="center"|'''[[GEOS-Chem 14.5.0]]'''
 +
 
 +
|}
  
−
=== 12.4.0 ===
+
== Feature integration in progress ==
  
−
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.
+
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"
−
|[[Grid-independent_emissions#Dust_emissions|Grid-independent dust emissions]] (hourly)
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
−
|David Ridley (CARB, formerly MIT)
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
−
|Science
+
|Emissions
 +
|Medium
 
|
 
|
−
*Data delivered to GCST (Jan 2019)
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-valign="top"
−
|[[Grid-independent_emissions#Lightning_NOx_emissions|Grid-independent lightning NOx emissions]] (3-hourly)
+
|Horizontal flux regridding fix in MAPL
−
|Lee Murray (Rochester)
+
|Tom Clune (GMAO)
−
|Science
+
|GCHP
 +
|Medium
 
|
 
|
−
*Data delivered to GCST (Jan 2019)
+
*[https://github.com/geoschem/MAPL/pull/36 MAPL PR #36]
  
 
|-valign="top"
 
|-valign="top"
−
|[[Grid-independent_emissions#Biogenic_emissions|Grid-independent biogenic emissions]] (hourly)
+
|Cloud-J 7.7.2 for greater flexibility in external models
−
|Jintai Lin (PKU)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|Photolysis
 +
|Medium
 
|
 
|
−
*Data delivered to GCST (Jan 2019)
+
*[https://github.com/geoschem/Cloud-J/pull/17 Cloud-J PR #17]
 +
*[https://github.com/geoschem/geos-chem/pull/2342 GEOS-Chem PR #2342]
 +
* More Cloud-J PRs in progress
  
 
|-valign="top"
 
|-valign="top"
−
|[[Grid-independent_emissions#Sea_salt_emissions|Grid-independent sea salt emissions]] (hourly)
+
|GCHP run directory improvements for mass flux, stretched grid, and GEOS-IT runs
−
|Jintai Lin (PKU)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 +
|Medium
 
|
 
|
−
*Data delivered to GCST (Jan 2019)
+
*[https://github.com/geoschem/geos-chem/pull/2326 GEOS-Chem PR #2326]
  
 
|-valign="top"
 
|-valign="top"
−
|[[Grid-independent_emissions#Soil_NOx_emissions|Grid-independent soil NOx emissions]] (hourly)
+
|Fixes for GEOS-Chem 14.4 in CESM
−
|Jintai Lin (PKU)
+
|Haipeng Lin (Harvard)<br>Lizzie Lundgren (Harvard)
−
|Science
+
|CESM
 +
|Medium
 
|
 
|
−
*Data delivered to GCST (Jan 2019)
+
*[https://github.com/geoschem/geos-chem/pull/2348 GEOS-Chem PR #2348]
 +
*[https://github.com/geoschem/geos-chem/pull/2349 GEOS-Chem PR #2349]
 +
* More PRs in progress
  
 
|}
 
|}
  
−
== 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
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="100px"|Delivery status
 +
!width="300px"|Notes and References
 +
 
 +
|-valign="top"
 +
|ALK4 & R4N2 chemistry
 +
|Jared Brewer (UMN)
 +
|Chemistry
 +
|TBD
 +
|Delivered
 +
|
 +
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
 +
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., 2023.]
 +
 
 +
|-valign="top"
 +
|New version of CEDS at 0.1 deg
 +
|Dandan Zhang (WashU)
 +
|Emissions
 +
|Simple
 +
|Delivered June 2024
 +
|
 +
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
 +
 
 +
|-valign="top"
 +
|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
 +
|Lizzie Lundgren (Harvard)
 +
|GC-Classic
 +
|Medium
 +
|
 +
|
 +
*[https://github.com/geoschem/HEMCO/issues/18 HEMCO issue #18]
 +
 
 +
|}
 +
 
 +
== Ready to go in ==
 +
 
 +
Features listed in this table are ready to go in but have either not been delivered or are not yet prioritized for integration into GEOS-Chem.
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
−
!width="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"|Delivery status
 +
!width="300px"|Notes and Refereneces
  
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://www.geosci-model-dev-discuss.net/gmd-2018-196/ Aromatic chemistry with the SAPRC-11 mechanism]
+
|Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol
−
|Yingying Yan (China University of Geosciences)
+
|Camilo Serrano and Andreas Zuend (McGill)
−
|Science
+
|Aerosols
 +
|Not delivered
 
|
 
|
−
*Implemented in GEOS-Chem v9-02
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018JD029133 N2O5 hydrolysis updates]
+
|Extend aerosol settling
−
|Viral Shah (UW)<br>Lyatt Jaegle (UW)<br>Chris Holmes (FSU)  
+
|Eloise Marais (UCL)
−
|Science
+
|Aerosols
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Dec 2018)
 
  
 
|-valign="top"
 
|-valign="top"
−
|Cloud reactive uptake of NOx
+
|Comment back in Ca, Mg, and K cations in aerosol thermo (HETP)
−
|Chris Holmes (FSU)
+
|Becky Alexander (UW)
−
|Science
+
|Aerosols
 +
|Not delivered
 
|
 
|
−
*Implemented in [[GEOS-Chem v11-01|v11-01]]
 
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Emissions and surface fluxes updates
+
|Seasalt aerosol from sea ice leads (2002-2011)
 +
|Hannah (UIUC)
 +
|Aerosols
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|Carbon bottom up fluxes: anthro, ocean, land
+
|P/L species should not contribute to the error norm
−
|Kevin Bowman (JPL)
+
|Obin Sturm (PSC)
−
|Science
+
|Chemistry
−
|Kevin Bowman wrote:
+
|Not delivered
−
*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
+
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Wet deposition updates
+
|Additional 6 peroxynitrates (many PANs like species); improve ALK4 & add ALK6
 +
|Katherine Travis (NASA LARC)
 +
|Chemistry
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc.
+
|Monoterpene oxdation more species & oxdiation products
−
|Sarah Safieddine (MIT)<br>GCST
+
|Kevin Bates (CU Boulder)
−
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+
|PPN photolysis
 +
|Eloise Marais (University College London)
 +
|Chemistry
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt aerosol alkalinity
+
|global orgainc N dep from various emissions; nitrate aromatics updates
−
|Qianjie Chen (UW)<br>Becky Alexander (UW)<br>Xuan Wang (Harvard)
+
|Tzung-May Fu (SUSTech)
−
|Science
+
|Chemistry +<br>Deposition
 +
|Not delivered
 
|
 
|
−
*UW version delivered to GCST (Nov 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|VBS SOA option
+
|adaptive chemistry (domain-specific) in WRF-GC
−
|Rokjin Park (SNU)
+
|Tzung-May Fu (SUSTech)
−
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
−
*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.
 
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
+
|Alk4 from biogenic vs anthro
 +
|Jared Brewer (UMN)
 +
|Chemistry
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|AMAP/UNEP 2035 for Hg simulation
+
|Dry deposition to F90 (readability)
−
|Helene Angot (MIT)
+
|Chris Holmes (FSU)
−
|Science
+
|Dry Deposition
 +
|Not delivered
 
|
 
|
−
*Data is available, but has not been transferred to GCST yet
 
  
 
|-valign="top"
 
|-valign="top"
−
|Oxidant fields from v10 for 2006-2012
+
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
−
*3D chemical source for CO2, CO
+
|Joey Lam, Amos Tai (CUHK)
−
*OH for tagged CO & CH4
+
|Dry deposition
−
|Dylan Jones (UofT)
+
|Not delivered
−
|Science
+
 
|
 
|
−
*Will make data files available on ftp site
 
  
 
|-valign="top"
 
|-valign="top"
−
|Africa nested-grid for GEOS-FP and MERRA-2
+
|FRP-based fire emissions for eastern US at 0.2
−
|Eloise Marais (U. Birmingham)
+
|Chris Holmes (FSU)
−
|Science
+
|Emissions
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Dec 2017)
 
−
*Could be implemented with Jiawei Zhuang's FlexGrid
 
  
 
|-valign="top"
 
|-valign="top"
−
|West Africa nested-grid for GEOS-FP
+
|China agriculture NH3 emissions
−
|Mat Evans (York)<br>Eleanor Morris (York)
+
|Amos Tai (CUHK)
−
|Science
+
|Emissions
 +
|Not delivered
 
|
 
|
−
*Could be implemented with Jiawei Zhuang's FlexGrid
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
+
|T-dependent anthropogenic VOCs
−
|Becky Alexander (UW)
+
|May Fu (SUSTech)
−
|Science
+
|Emissions
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Arsenic simulation
+
|Rasterized shapefiles high-resolution for oil and gas infrastructure in North America
−
|Shiliang Wu (MT)
+
|Lee Murray (Rochester)
−
|Science
+
|Emissions
 +
|Not delivered
 
|
 
|
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|GCHP updates
+
|New soil NOx parameterization
 +
|Yi Wang (U. Iowa), Jun Wang (U. Iowa)
 +
|Emissions
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|Update to redistribution of mass in transport
+
|New source functions for transport tracers beryllium-7 and beryllium-10
−
|Seb Eastham (MIT)
+
|Minjie Zheng (ETH)
−
|Science
+
|Emissions
 +
|Not delivered
 
|
 
|
−
*Stop gap solution pending use of mass fluxes instead of winds in advection
 
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Structural updates
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
 +
|Yang Li (Baylor University), Loretta Mickley (Harvard)
 +
|Emissions
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|Benchmark of stratospheric simulation
+
|Australian emissions
−
|Dylan Jones (U. Toronto)
+
|Stephen MacFarlane/Jenny Fisher (UWollongong)
−
|Benchmarking
+
|Emissions
 +
|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
+
|Geogenic emissions (volcanic, rock weathering)
−
|Chris Holmes (FSU)<br>[[GCST]]
+
|Eric Roy (MIT)
−
|Benchmarking
+
|Emissions
 +
|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"
−
|Further structural updates to facilitate interfacing GEOS-Chem with external models (e.g. WRF, CAM, CESM)
+
|Biomass burning - FINN2.5 & GFED4
−
|[[GCST]]
+
|Eric Roy (MIT)
−
|Structural
+
|Emissions
 +
|Not delivered
 
|
 
|
−
*Ongoing
 
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
+
|BCC-GC online
 +
|Lin Zhang (PKU)
 +
|External Model
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|Archival of roughness length for temperature z0T
+
|GC-YIBS with online fire emissions
−
|[[GCST]]
+
|Xu Yue; Hong Liao; Xu Yue (NUIST)
−
|Met processing
+
|External Model
 +
|Not delivered
 
|
 
|
−
*Work has not yet begun
+
 
 +
|-valign="top"
 +
|GISS-GC offline (GCAP)
 +
|Lee Murray (Rochester)
 +
|GCAP
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|Archived TCR-2 OH fields for carbon simulations
 +
|Kazu Miyazaki (JPL)
 +
|Input data
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|GOOPy (General Observation Operator in Python): for processing satellite and model output to produce column fields using averaging kernels
 +
|Hannah Nesser (JPL) , Elise Penn (Harvard)
 +
|Tools
 +
|Not delivered
 +
|
 +
* Could be added into GCPy as a Git submodule
 +
 
 
|}
 
|}
  
−
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 19:04, 2 August 2018 (UTC)
+
== Almost there (< 6 months) ==
  
−
=== 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.
  
−
{| 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
  
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Transport updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|[https://www.geosci-model-dev-discuss.net/gmd-2017-125/ GEOS resolution & subgrid convection]
+
|Capture all trop and PBL height changes in budget diagnostics
−
|Karen Yu (Harvard)
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
−
|Science
+
|Diagnostics
 
|
 
|
−
*To be installed by Bob Yantosca (Harvard), tested by Tailong He (Toronto)
+
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
−
*Work to begin after [[GEOS-Chem 12#12.0.0|GC 12.0.0]] release
+
  
 
|-valign="top"
 
|-valign="top"
−
|Transport families in the stratosphere
+
|Dust non-sphericity impacts on optical properties
−
|Christoph Keller (NASA GMAO)
+
|Inderjeet Singh (WashU)
−
|Science
+
|Aerosols
 
|
 
|
−
*Implemented in GEOS-GC coupled system
 
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+
|Fixes to stratospheric aerosol settling
 +
|Connor Barker, Eloise Marais (UCL)
 +
|Aerosols
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+
|DMS chemistry in v14
−
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
+
|Linia Tashmim and Will Porter (UC Riverside)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|H2 chemistry in UCX
+
|KPP standalone + 3D Interface
−
|Chris Holmes (FSU)
+
|Obin Sturm (PSC)
−
|Science
+
|Chemistry
 
|
 
|
−
*Defer until paper is submitted
 
−
*Estimate Fall 2018 or sooner
 
  
 
|-valign="top"
 
|-valign="top"
−
|Updated chlorine chemistry
+
|Load balancing in chemistry solver (GCHP)
−
|Xuan Wang (Harvard)
+
|Zhouran (Jordan) Sun (WashU)
−
|Science
+
|Chemistry +<br>Performance
 
|
 
|
−
*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]]
+
|UCX chemistry in mesosphere (GCHP/GCClassic)
−
|Katie Travis (MIT)
+
|Helena McDonald (MIT)
−
|Structural
+
|Chemistry
 
|
 
|
−
*Defer until the paper is submitted
 
  
 
|-valign="top"
 
|-valign="top"
−
|OH + NO2 rate update
+
|Updated aromatic oxidation
−
|Barron Henderson (EPA)
+
|Stephen MacFarlane/Jenny Fisher (University of Wollongong)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Chemistry_Issues#Script_for_evaluating_carbon_balance|Script for checking N, C, etc. balance in chemistry mechanism]]
+
|MCO3 uptake by cloud forming MP; leading to lower PAN
−
|Barron Henderson (EPA)
+
|Laura Yang (Harvard)
−
|Software
+
|Chemistry
−
|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"
 
|-valign="top"
−
|Aromatics and dicarbonyl chemistry
+
|Implement isotope simulation for CH4 in the carbon simulation
−
|William Porter (MIT)<br>Tzung-May Fu (PKU)
+
|Lee Murray (Rochester)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Document chemical mechanism in KPP file
+
|Active mesospheric chemistry
−
|Mat Evans (York)
+
|Helena McDonald (MIT), Seb Eastham (IC)
−
|Structural
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Diurnal variability for NH3
+
|Documentation for adding additional aerosol species
−
|Henze group
+
|Connor Barker (UCL)
−
|Science
+
|Documentation
−
|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"
 
|-valign="top"
−
|Uptake of HNO3 onto coarse-mode sea salt
+
|Column diagnostics
−
|Prasad Kasibhatla (Duke)
+
|Lizzie Lundgren (Harvard), Viral Shah (GMAO)
−
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[https://www.atmos-chem-phys.net/18/11185/2018/ Photolysis of NITs]
+
|TOMAS rate diagnostics -- improve performance
−
|Prasad Kasibhatla (Duke)
+
|Betty Croft (WashU/Dal)
−
|Science
+
|Diagnostics +<br>Performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Update heterogeneous processes to address high bias in nitrate
+
|Fix obspack - not working in 14.4.0
−
|Chris Holmes (FSU)
+
|Bob Yantosca (Harvard)
−
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|UCX-mini chemical mechanism
+
|Archive gamma values from heterogeneous chemistry
−
|Sebastian Eastham (MIT)
+
|Bob Yantosca (Harvard)
−
|Science
+
|Diagnostics
 
|
 
|
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+
|RRTMG Documentation
 +
|GCST
 +
|Documentation
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|[https://www.atmos-chem-phys-discuss.net/acp-2018-459/ Update to hygroscopic growth]
+
|Canopy Physics Model
−
|Robyn Latimer (Dalhousie)<br>Randall Martin (Dalhousie)
+
|Sam Silva (MIT)
−
|Science
+
|Dry Deposition
 
|
 
|
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Emissions updates
+
|Dry deposition diagnostics by land cover
 +
|Holly Nowell, Chris Holmes (FSU)
 +
|Dry Deposition
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|EPA-derived BC/OA emissions over US (1990-2012)
+
|Dry deposition process diagnostics
−
|David Ridley (MIT)<br>Chi Li (Dalhousie)
+
|Holly Nowell, Chris Holmes (FSU)
−
|Science
+
|Dry Deposition
 
|
 
|
−
*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]]
+
|Biomass burning for TOMAS
−
|Barron Henderson (US EPA)
+
|Nicole June (CSU)
−
|Science
+
|Emissions +<br>Microphysics
 
|
 
|
−
*Pending receipt of corrected data files
 
  
 
|-valign="top"
 
|-valign="top"
−
|EPA NEI2011 Version EK
+
|Historic biomass burning ()
−
|Zitely Tzompa-Sosa (CSU)<br>Emily Fischer (CSU)
+
|Pengfei (Gtech)
−
|Science
+
|Emissions
 
|
 
|
−
*Estimate Late 2018 or sooner
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[MASAGE_NH3_inventory|MASAGE inventory in HEMCO as default]]
+
|Rice methane
−
|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
+
|Zichong Cheng (Harvard)
−
|Science
+
|Emissions
 
|
 
|
−
*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]]
+
|Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.)
−
|Amos Tai (CUHK)
+
|Katie Travis / Kelvin Bates
−
|Science
+
|Emissions
 
|
 
|
−
*Waiting on data
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
−
|Fabien Paulot (NOAA/GFDL)
+
|Melissa Sulprizio (Harvard), Tia Scarpelli (Carbon MAPPER)
−
|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
+
|New prior biospheric fluxes from CMS-FLUX and GMAO
−
|Juliet Zhu (CSU)<br>Emily Fischer (CSU)
+
|Kevin Bowman (JPL), Lesley Ott (GMAO)
−
|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
+
|Snowpack Br2 emission
−
|Jeff Geddes (BU)
+
|Chris Holmes (FSU)
−
|Science
+
|Emissions
 
|
 
|
−
*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"
 
|-valign="top"
−
|Online O3-LAI coupling in GEOS-Chem
+
|EDGAR v8.1_toxHg emissions for 1970-2022
−
|Amos Tai (CUHK)
+
|Eric Roy (MIT)
−
|Science
+
|Emissions
 
|
 
|
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Wet deposition updates
+
|Improve pressure handling in GCHP advection
 +
|Yuanjian Zhang (WashU), Seb Eastham (ICL)
 +
|GCHP
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|Wet scavenging in mixed-phase clouds
+
|Add error trap for duplicate scale factors in HEMCO
−
|Bo Zhang (NIA/NASA Langley)
+
|Bob Yantosca (Harvard)
−
|Science
+
|HEMCO
 
|
 
|
−
*Defer until paper is published
 
−
*Estimate Fall 2018
 
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
+
|Fix pressure handling in HEMCO standalone
 +
|Melissa Sulprizio (Harvard)
 +
|HEMCO
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|Radon emission update
+
|Integration testing: Add stretched grid
−
|Bo Zhang (NIA/NASA Langley)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|Quality Assurance
 
|
 
|
−
*Defer until paper is published
 
−
*Estimate Fall 2018
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Integration testing: Add GCAP2
−
|Colin Thackray (Harvard)<br>Carey Friedman (formerly MIT)<br>Helen Amos (formerly Harvard)
+
|GCST
−
|Science
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|New EDGAR sectoral inventory for Hg (1970-2012)
+
|Integration testing: Add GCHP mass flux run
−
|Amanda Giang (MIT)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Archive GISS met fields from RCP scenarios for community
+
|Integration testing: Add run with all diagnostics turned on
−
|Lee Murray (Rochester)
+
|GCST
−
|Science
+
|Quality Assurance
 
|
 
|
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|GCHP updates
+
|Integration testing: Reinstate TOMAS40
 +
|Betty Croft (Dalhousie/WashU)
 +
|Quality Assurance
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|New version of MAPL
+
|Strat-adjusted RF in GCC and GCHP
−
|GMAO<br>Lizzie Lundgren (GCST)
+
|Connor Barker, Eloise Marais (UCL)
 +
|Radiation
 +
|
 +
 
 +
|-valign="top"
 +
|Continue cleanup of C-preprocessor switches
 +
|Lizzie Lundgren (Harvard)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Flux ingestion
+
|updates to Luo deposition scheme
−
|Sebastian Eastham (MIT)
+
|Gan Luo
−
|Science
+
|Wet Deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Use CMake to simplify GCHP build process
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
−
|Liam Bindle (Dalhousie)
+
|Gan Luo (Albany), Fangqun Yu (Albany)
−
|Structural
+
|Wet Deposition
 
|
 
|
  
−
|-
+
|}
−
!colspan="4" bgcolor="#CCFFFF"|Structural updates
+
 
 +
== Over the horizon (6-12 months) ==
 +
 
 +
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.
 +
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|- bgcolor="#cccccc"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[[FlexGrid|FlexGrid Stage 2: Enable nested simulations over any custom domains]]
+
|ML algorithms for bulk aerosol
−
|Jiawei Zhuang (Harvard)<br>Melissa Sulprizio ([[GCST]])
+
|Arshad Nair and Fangqun Yu (SUNY Albany)
−
|Structural
+
|Aerosols
 
|
 
|
 +
  
 
|-valign="top"
 
|-valign="top"
−
|Clean up SOA diagnostics
+
|Heterogeneous sulfate chemistry
−
|GCST
+
|Katie Travis
−
|Structural
+
|Chemistry
 
|
 
|
−
*GCST has implemented many existing SOA diagnostics in netCDF
 
−
*GCST would need help from the community to streamline these diagnostics
 
  
 
|-valign="top"
 
|-valign="top"
−
|Calculation consistency throughout code: surface area, HGF (via species database)
+
|H2 as an active species
−
|GCST
+
|Seb Eastham (IC)
−
|Structural
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Harmonizing Henry's Law coefficients across wet and dry deposition
+
|HCN, acetonitrile as fire tracers
−
|[[GCST]]
+
|Kevin Bates (CU Boulder)
−
|Science
+
|Chemistry
 
|
 
|
−
*Work not started yet. Will need input from the community.
 
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
+
|Implement ethane in carbon simulation
 +
|Yuzhong Zhang (Westlake)
 +
|Chemistry
 +
|
 +
 
 +
 
 +
 
  
 
|-valign="top"
 
|-valign="top"
−
|CESM-GC offline coupling in standard model + benchmark
+
|VCPs emissions
−
|Rokjin Park (SNU)<br>Daniel Rothenberg (MIT)
+
|Kelvin Bates (CU Boulder)
−
|Science
+
|Emissions
 
|
 
|
−
*Rokjin Park says code is ready
 
−
*Waiting on clarification in which version this is implemented in.
 
  
−
|}
+
|-valign="top"
 +
|Mesospheric source of CO
 +
|Dylan Jones (UofT), Pam Wales (GSFC)
 +
|Emissions
 +
|
  
−
--[[User:Lizzie Lundgren|Lizzie Lundgren]] ([[User talk:Lizzie Lundgren|talk]]) 15:11, 29 June 2018 (UTC)
+
|-valign="top"
 +
|Drought-stress algorithm
 +
|Wei Li (U. Houston)
 +
|Emissions
 +
|
  
−
=== Over the horizon (6-12 months) ===
+
|-valign="top"
 +
|Physically-based resolution correction for BVOC emissions using MEGAN
 +
|May Fu (SUSTech)
 +
|Emissions
 +
|
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|- bgcolor="#cccccc"
+
|Canadian forest fire prediction system (Canada government forecast model)
−
!width="500px"|Item
+
|Robin (Montreal)
−
!width="200px"|Author(s)
+
|Emissions
−
!width="100px"|Type
+
|
−
!width="300px"|Status
+
  
 
|-valign="top"
 
|-valign="top"
−
|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
+
|Furan emission factors (updates existing emissions)
−
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Lu Hu/Lixu Jin (Montana)
−
|Science
+
|Emissions
 
|
 
|
−
*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"
−
|GISS-GC (ICECAP/GCAP2) in standard model + benchmark
+
|Cooking emissions (not biofuel)
−
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|Kelvin Bates (CU Boulder)
−
|Science
+
|Emissions
−
|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"
 
|-valign="top"
−
|GISS-GC GCHP
+
|State-specific annual emissions scaling factors (US) (1990-2021)
−
|Lee Murray (Rochester)<br>Pengfei Liu (Harvard)<br>Yang Li (Harvard)
+
|Ishir Dutta (MIT)
−
|Science
+
|Emissions
 
|
 
|
−
*Rochester and Harvard groups are coordinating, to avoid duplication of effort
 
  
 
|-valign="top"
 
|-valign="top"
−
|CESM-GC GCHP
+
|GISS-GC online
−
|Seb Eastham (MIT)
+
|Lee Murray (Rochester)
−
|Science
+
|External model
 
|
 
|
−
*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:
+
|Hybrid MPI-OpenMP in GCHP
−
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Seb Eastham (MIT); Killian Murphy (York); Lizzie Lundgren (Harvard)
−
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
|GCHP
−
|[[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
+
|MAPL3: Update to MAPL3 in GCHP, including replacement of ExtData.rc and HISTORY.rc with YAML files
−
|Shiliang Wu (MNT)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Interannually varying ocean model BCs for Hg from ocean model
+
|MAPL3: Comply with MAPL "positive" standard in GCHP diagnostic files
−
|Colin Thackray (Harvard)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|PAH & PFCA simulations
+
|MAPL3: Wildcards in GCHP History
−
|Peter Ivatt (York)<br>Mat Evans (York)<br>Noelle Selin (MIT)<br>Colin Thackray (Harvard)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|CH4 in full chemistry simulation
+
|MAPL3: Output emissions with positive up convention in GCHP
−
|Seb Eastham (Harvard)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Standard future land use maps (PFT, LAI) for RCP/CMIP6 simulations
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
−
|Colette Heald (MIT)<br>Loretta Mickley (Harvard)
+
|Bob Yantosca (Harvard)
−
|Science
+
|Performance
 
|
 
|
 +
 +
  
 
|-valign="top"
 
|-valign="top"
−
|Archive GISS met fields from CMIP6 scenarios for community
+
|Photophysical oxidation of aldehydes
−
|Lee Murray (Rochester)
+
|Paulo Sebastianelli/Jenny Fisher (University of Wollongong)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to cold-temperature deposition
+
|DMS updates
−
|Lyatt Jaegle (UW)
+
|Will Porter (UCR)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Simple parameterization for CO2-O3 dependence of stomatal resistance
+
|Furans emission and chemistry
−
|Amos Tai (CUHK)
+
|Lixu Jin/Lu Hu(U Montana)
−
|Science
+
|Chemistry + <br>Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|NH3 emissions over China
+
|Cl2 prodcution from Fe aerosol Qianjie Chen
−
|Lin Zhang (PKU)
+
|(Hong Kong Poly)/Becky Alexander (UW)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Using GEOS-Chem within GEOS-5
+
|VCP, cooking: tracers species added i.e., D5, ethanol affecting PAN
−
|Loretta Mickley (Harvard)
+
|Kevin Bates (CU Boulder)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Carbon cycle outputs in xCO2, xCH4 as a diagnostic
+
|bidirectional land-atmosphere exchange for Hg
−
|Beata Bukosa (Wollongong)<br>Dylan Jones (UofT)
+
|Yuying Cui (MIT/Tsinghua)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Seasonal EMEP emissions back to 1980
+
|OH covariances for inversions
−
|Mat Evans (York)
+
|Elise Penn (Harvard)
−
|Science
+
|Inversions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to NO2 dry deposition
+
|CESM2-GC offline
−
|Brian Boys (Dalhousie)
+
|Seb Eastham (ICL); Lee Murray (Rochester)
−
|Science
+
|Met fields
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|APM update and integration with most recent GEOS-Chem version
+
|Re-binning of off-line sea salt and dust for TOMAS
−
|Gan Luo (SUNY Albany)
+
|Betty Croft (Dalhousie)
−
|Structural
+
|Microphysics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Cosmogenic tracer production
+
|TOMAS nucleation updates
−
|Lee Murray (Rochester)
+
|Sam O'Donnell (CSU)
−
|Science
+
|Microphysics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Explore resolution-consistent dust emissions
+
|Stratospheric aerosol APM
−
*Make high-res concentrations or mass fluxes available offline, implement in met field processing
+
|Fangqun Yu (SUNY Albany)
−
|David Ridley (MIT)<br>GCST<br>Nested Model WG
+
|Microphysics
−
|Science
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Dust emissions at nested-grid resolutions
+
|Transition from MERRA-2 to GEOS-IT for benchmarking
−
|Yuxuan Wang (U. Houston)<br>Jun Wang (U. Iowa)
+
|Yuanjian Zhang (WashU)
−
|Science
+
|Quality Assurance
 
|
 
|
−
*Check for overlap with resolution-consistent dust emissions above
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Update SO2 scavenging in convective updrafts for consistency]]
+
|Automate integration testing on AWS
−
|Duncan Fairlie (NASA/LARC)  
+
|Yidan Tang (WashU)
−
|Science
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt emission from sea ice
+
|Integration testing: Add across end of year run
−
|Jiayue Huang (UW)
+
|GCST
−
|Science
+
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Integration testing: Add GEOS-IT
 +
|Yuanjian Zhang (WashU)
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Separate mixing, emissions, and drydep
 +
|Yuanjian Zhang (WashU)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Intel IFX compiler
 +
|Bob Yantosca (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|CMake option to only build libraries but not executable, also passing C-preprocessor statements to turn off code
 +
|Bob Yantosca (Harvard); Lee Murray (Rochester)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Remove differences introduced when breaking up GC-Classic runs in time; and flexible precision in HEMCO
 +
|Lizzie Lundgren (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Limit allocation of State_Met to what is needed per simulation
 +
|Melissa Sulprizio (Harvard)
 +
|Structural
 
|
 
|
  
 
|}
 
|}
  
−
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 19:42, 24 May 2018 (UTC)
+
== Longer term (12-24 months)==
  
−
=== Longer term (12-24 months)===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
−
!width="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"
−
|GCHP stretched grid
+
|Modal aerosol model (MAM7) in GCHP
−
|Jiawei Zhuang (Harvard)
+
|Shreya Sharma (MIT)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|1/8 degree nested-grid simulations with GEOS-FP
+
|Online OCIM ocean biogeochemistry
−
|Nested Model WG
+
|Lee Murray (Rochester); Hannah Horowitz (UIUC); Chris Holmes (FSU)
−
|Science
+
|Chemistry
 
|
 
|
−
*Wait for more interest
 
  
 
|-valign="top"
 
|-valign="top"
−
|Embedding GEOS-Chem into CESM
+
|Perchlorate chemistry
−
|Jean-Francois Lamarque (NCAR)
+
|Yuk Chun Chan (UW)
−
|Science
+
|Chemistry
 
|
 
|
−
*NOTE: Seb Eastham is already working on this
 
  
 
|-valign="top"
 
|-valign="top"
−
|Adjoint of carbon cycle simulation in GCHP
+
|Non-stomatal dry deposition (2-layer canopy model)
−
|Kevin Bowman (JPL)
+
|Michael Vermeuel (Purdue)
−
|Science
+
|Dry Deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Isoprene chemistry v2 (new Caltech update)
+
|Continental chloride particle emissions (salty dust, road salt)
−
|Kelvin Bates (Caltech)
+
|Jessica Haskins (Utah)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Contemporary land cover: developing historical and updated GEOS-Chem land cover maps based on satellite remote sensing
+
|Multivolatility emission inventory to address gaps in EDGAR/HTAP etc.
−
|Jeff Geddes (BU)
+
|Ruochong (Tshingua)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Farquhar-Ball-Barry model to calculate stomatal resistance
+
|Lightning NOx production rates
−
|Amos Tai (CUHK)<br>Jeff Geddes (BU)
+
|Bex Horner (UCL)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Impacts of chemistry on ecosystem/carbon cycle
+
|HFO and CF3CHO
−
|Kevin Bowman (JPL)<br>Anthony Bloom (JPL)
+
|Beth Killen/Jenny Fisher (University of Wollongong)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Improved lightning emission scheme
+
|Glyoxal updates from isoprene
−
|Lee Murray (Rochester)
+
|Tzung-May Fu (SUSTech)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Resolution-independent lightning NOx
+
|Iodine chemistry
−
|Lee Murray (Rochester)
+
|Becky Alexander (UW)/Xuan Wang (cityU HK)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Bidirectional NH3 emissions
+
|Chlorine/Perchlorate
−
|Juliet Zhu (CSU)
+
|Yukchun Chan (UW)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Country-based weekday/weekend variability for EDGAR 4.2
+
|Playa dust chemistry to improve Cl over land
−
|Lee Murray (Rochester)<br>Christoph Keller (Harvard)
+
|Jessica Haskins (Utah)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Update keytone photolysis
+
|GFED5 biomass burning
−
|Jared Brewer (CSU)<br>Emily Fischer (CSU)
+
|Eric Roy (MIT)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Small alkyl nitrates
+
|Ocean Hg surface concentrations for 2010-2020 from multi-model ensemble
−
|Jenny Fisher (Wollongong)
+
|Eric Roy (MIT)/Ari Feinberg (IQF-CSIC)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|YIBS-GC chemistry-biosphere-fire coupling
+
|Soil Hg emissions 2010-2020
−
|Loretta Mickley (Harvard)<br>Xu Yue (IAP)
+
|Eric Roy (MIT)/Ari Feinberg (IQF-CSIC)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Nitrogen-LAI coupling
+
|Air-sea exchange parameterization
−
|Lin Zhang (PKU)<br>Amos Tai (CUHK)
+
|Eric Roy (MIT)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Implementing humidity/VPD dependence of dry deposition
+
|Soil Hg emissions parameterization
−
|Jennifer Murphy (U. Toronto)
+
|Ari Feinberg (IQF-CSIC)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|SO2 wet scavenging
+
|Sea salt uptake of GOM
−
|Duncan Fairlie (NASA Langley)
+
|Eric Roy (MIT)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Heterogeneous sulfate production
+
|Photoreduction rate constant
−
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Eric Roy (MIT)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|MOSAIC implementation
+
|new observations (2010-2020) in standardized Hg benchmark for intercomparison
−
|Sebastian Eastham (Harvard)
+
|Eric Roy (MIT)/Ari Feinberg (IQF-CSIC)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Particle size climatology
+
|Hg simulation in GCHP
−
|Fangqun Yu (SUNY Albany)
+
|Eric Roy (MIT)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt/dust size distribution
+
|OCIM - biogeochemical model - (C/P/N/Fe - no Hg yet) (MATLAB)
−
|David Ridley (MIT)<br>Colette Heald (MIT)
+
|Hannah Horowitz (UIUC)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to GTMM
+
|possibly updating Hg oxidation chemistry based on Utah field campaigns
−
|Rebecca Stern (Harvard)
+
|Jessica Haskins (Utah)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Tracer transport ocean
+
|New halogen/aerosol fields (surface area / AOD) from 10-year 14.4 benchmark simulation available online
−
|Chris Holmes (FSU)
+
|Viral Shah (NASA GMAO); Eric Roy (MIT); Ari Feinberg (IQF-CSIC)
−
|Science
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Include Hg in full chemistry simulation
+
|Extend IMI to CO2 (ICI)
−
|Noelle Selin (MIT)
+
|Hannah Nesser (JPL)  
−
|Science
+
|Inversions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Goddard seasonal weather prediction in GCHP
+
|Global emission inventory of metals
−
|Kevin Bowman (JPL)
+
|Tzung-May Fu (SUSTech); He Zhong Tian (Peking Normal U)
−
|Science
+
|Metals simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Climate index diagnostics (drought, etc.)
+
|Investigate and improve performance of aerosol chemistry
−
|Chemistry-ecosystems-climate WG
+
|Bob Yantosca (Harvard)
−
|Structural
+
|Performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Joint CO/CO2/CH4 simulation
+
|PAH - update from version 11
−
|Nicholas Deutscher (U. Wollongong)
+
|Lexia Cicone (MIT)
−
|Science
+
|POPs simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Carbon coupling: oceans and terrestrial models
+
|Species database more accessible; doc updates; TOL discussion
−
|Chris Holmes (FSU)
+
|Jessica Haskins (Utah)
−
|Science
+
|Structural
 
|
 
|
−
*Ocim-pure physical transport, ECCO-Darwin ocean biogeochemistry
 
  
 
|-valign="top"
 
|-valign="top"
−
|DMS oxidation scheme updating
+
|Stretched-grid plotting in GCPy
−
|Qianjie Chen (UW)<br>Chemistry WG
+
|Killian Murphy (York)
−
|Science
+
|Tools
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Limiting NH3 uptake due to OA
+
|Model inter-comparison of transport (GEOS, GCHP, GCClassic)
−
|Rachel Silvern (Harvard)
+
|Lizzie Lundgren (Harvard), Emma Knowland (NASA)
−
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem_species_units|Uniformity of units throughout GEOS-Chem components]]
+
|Comparing mass fluxes in GCHP vs. traditional lat/lon wind
−
|[[GCST]]
+
|Yuanjian Zhang (WashU), Seb Eastham (ICL)
−
|Structural
+
|Transport
 
|
 
|
  
 
|}
 
|}
−
 
−
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 15:32, 23 May 2018 (UTC)
 

Revision as of 14:19, 25 June 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 14.5.0

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
New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa) 		Emissions Medium
Horizontal flux regridding fix in MAPL Tom Clune (GMAO) GCHP Medium
Cloud-J 7.7.2 for greater flexibility in external models Lizzie Lundgren (Harvard) Photolysis Medium
GCHP run directory improvements for mass flux, stretched grid, and GEOS-IT runs Lizzie Lundgren (Harvard) GCHP Medium
Fixes for GEOS-Chem 14.4 in CESM Haipeng Lin (Harvard)
Lizzie Lundgren (Harvard) 		CESM 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 Delivered
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple Delivered June 2024
Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4 Lizzie Lundgren (Harvard) GC-Classic Medium

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 Refereneces


Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol Camilo Serrano and Andreas Zuend (McGill) Aerosols Not delivered
Extend aerosol settling Eloise Marais (UCL) Aerosols Not delivered
Comment back in Ca, Mg, and K cations in aerosol thermo (HETP) Becky Alexander (UW) Aerosols Not delivered
Seasalt aerosol from sea ice leads (2002-2011) Hannah (UIUC) Aerosols Not delivered
P/L species should not contribute to the error norm Obin Sturm (PSC) Chemistry Not delivered
Additional 6 peroxynitrates (many PANs like species); improve ALK4 & add ALK6 Katherine Travis (NASA LARC) Chemistry Not delivered
Monoterpene oxdation more species & oxdiation products Kevin Bates (CU Boulder) Chemistry Not delivered
PPN photolysis Eloise Marais (University College London) Chemistry Not delivered
global orgainc N dep from various emissions; nitrate aromatics updates Tzung-May Fu (SUSTech) Chemistry +
Deposition 		Not delivered
adaptive chemistry (domain-specific) in WRF-GC Tzung-May Fu (SUSTech) Chemistry Not delivered
Alk4 from biogenic vs anthro Jared Brewer (UMN) Chemistry Not delivered
Dry deposition to F90 (readability) Chris Holmes (FSU) Dry Deposition Not delivered
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam, Amos Tai (CUHK) Dry deposition Not delivered
FRP-based fire emissions for eastern US at 0.2 Chris Holmes (FSU) Emissions Not delivered
China agriculture NH3 emissions Amos Tai (CUHK) Emissions Not delivered
T-dependent anthropogenic VOCs May Fu (SUSTech) Emissions Not delivered
Rasterized shapefiles high-resolution for oil and gas infrastructure in North America Lee Murray (Rochester) Emissions Not delivered
New soil NOx parameterization Yi Wang (U. Iowa), Jun Wang (U. Iowa) Emissions Not delivered
New source functions for transport tracers beryllium-7 and beryllium-10 Minjie Zheng (ETH) Emissions Not delivered
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100 Yang Li (Baylor University), Loretta Mickley (Harvard) Emissions Not delivered
Australian emissions Stephen MacFarlane/Jenny Fisher (UWollongong) Emissions Not delivered
Geogenic emissions (volcanic, rock weathering) Eric Roy (MIT) Emissions Not delivered
Biomass burning - FINN2.5 & GFED4 Eric Roy (MIT) Emissions Not delivered
BCC-GC online Lin Zhang (PKU) External Model Not delivered
GC-YIBS with online fire emissions Xu Yue; Hong Liao; Xu Yue (NUIST) External Model Not delivered
GISS-GC offline (GCAP) Lee Murray (Rochester) GCAP Not delivered
Archived TCR-2 OH fields for carbon simulations Kazu Miyazaki (JPL) Input data Not delivered
GOOPy (General Observation Operator in Python): for processing satellite and model output to produce column fields using averaging kernels Hannah Nesser (JPL) , Elise Penn (Harvard) Tools Not delivered
  • Could be added into GCPy as a Git submodule

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


Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard) 		Diagnostics
Dust non-sphericity impacts on optical properties Inderjeet Singh (WashU) Aerosols
Fixes to stratospheric aerosol settling Connor Barker, Eloise Marais (UCL) Aerosols
DMS chemistry in v14 Linia Tashmim and Will Porter (UC Riverside) Chemistry
KPP standalone + 3D Interface Obin Sturm (PSC) Chemistry
Load balancing in chemistry solver (GCHP) Zhouran (Jordan) Sun (WashU) Chemistry +
Performance
UCX chemistry in mesosphere (GCHP/GCClassic) Helena McDonald (MIT) Chemistry
Updated aromatic oxidation Stephen MacFarlane/Jenny Fisher (University of Wollongong) Chemistry
MCO3 uptake by cloud forming MP; leading to lower PAN Laura Yang (Harvard) Chemistry
Implement isotope simulation for CH4 in the carbon simulation Lee Murray (Rochester) Chemistry
Active mesospheric chemistry Helena McDonald (MIT), Seb Eastham (IC) Chemistry
Documentation for adding additional aerosol species Connor Barker (UCL) Documentation
Column diagnostics Lizzie Lundgren (Harvard), Viral Shah (GMAO) Diagnostics
TOMAS rate diagnostics -- improve performance Betty Croft (WashU/Dal) Diagnostics +
Performance
Fix obspack - not working in 14.4.0 Bob Yantosca (Harvard) Diagnostics
Archive gamma values from heterogeneous chemistry Bob Yantosca (Harvard) Diagnostics
RRTMG Documentation GCST Documentation
Canopy Physics Model Sam Silva (MIT) Dry Deposition
Dry deposition diagnostics by land cover Holly Nowell, Chris Holmes (FSU) Dry Deposition
Dry deposition process diagnostics Holly Nowell, Chris Holmes (FSU) Dry Deposition
Biomass burning for TOMAS Nicole June (CSU) Emissions +
Microphysics
Historic biomass burning () Pengfei (Gtech) Emissions
Rice methane Zichong Cheng (Harvard) Emissions
Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.) Katie Travis / Kelvin Bates Emissions
Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3) Melissa Sulprizio (Harvard), Tia Scarpelli (Carbon MAPPER) Emissions
New prior biospheric fluxes from CMS-FLUX and GMAO Kevin Bowman (JPL), Lesley Ott (GMAO) Emissions
Snowpack Br2 emission Chris Holmes (FSU) Emissions
EDGAR v8.1_toxHg emissions for 1970-2022 Eric Roy (MIT) Emissions
Improve pressure handling in GCHP advection Yuanjian Zhang (WashU), Seb Eastham (ICL) GCHP
Add error trap for duplicate scale factors in HEMCO Bob Yantosca (Harvard) HEMCO
Fix pressure handling in HEMCO standalone Melissa Sulprizio (Harvard) HEMCO
Integration testing: Add stretched grid Lizzie Lundgren (Harvard) Quality Assurance
Integration testing: Add GCAP2 GCST Quality Assurance
Integration testing: Add GCHP mass flux run Lizzie Lundgren (Harvard) Quality Assurance
Integration testing: Add run with all diagnostics turned on GCST Quality Assurance
Integration testing: Reinstate TOMAS40 Betty Croft (Dalhousie/WashU) Quality Assurance
Strat-adjusted RF in GCC and GCHP Connor Barker, Eloise Marais (UCL) Radiation
Continue cleanup of C-preprocessor switches Lizzie Lundgren (Harvard) Structural
updates to Luo deposition scheme Gan Luo Wet Deposition
Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer Gan Luo (Albany), Fangqun Yu (Albany) Wet Deposition

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
ML algorithms for bulk aerosol Arshad Nair and Fangqun Yu (SUNY Albany) Aerosols


Heterogeneous sulfate chemistry Katie Travis Chemistry
H2 as an active species Seb Eastham (IC) Chemistry
HCN, acetonitrile as fire tracers Kevin Bates (CU Boulder) Chemistry
Implement ethane in carbon simulation Yuzhong Zhang (Westlake) Chemistry



VCPs emissions Kelvin Bates (CU Boulder) Emissions
Mesospheric source of CO Dylan Jones (UofT), Pam Wales (GSFC) Emissions
Drought-stress algorithm Wei Li (U. Houston) Emissions
Physically-based resolution correction for BVOC emissions using MEGAN May Fu (SUSTech) Emissions
Canadian forest fire prediction system (Canada government forecast model) Robin (Montreal) Emissions
Furan emission factors (updates existing emissions) Lu Hu/Lixu Jin (Montana) Emissions
Cooking emissions (not biofuel) Kelvin Bates (CU Boulder) Emissions
State-specific annual emissions scaling factors (US) (1990-2021) Ishir Dutta (MIT) Emissions
GISS-GC online Lee Murray (Rochester) External model


Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT); Killian Murphy (York); Lizzie Lundgren (Harvard) GCHP


MAPL3: Update to MAPL3 in GCHP, including replacement of ExtData.rc and HISTORY.rc with YAML files Lizzie Lundgren (Harvard) GCHP
MAPL3: Comply with MAPL "positive" standard in GCHP diagnostic files Lizzie Lundgren (Harvard) GCHP
MAPL3: Wildcards in GCHP History Lizzie Lundgren (Harvard) GCHP
MAPL3: Output emissions with positive up convention in GCHP Lizzie Lundgren (Harvard) GCHP
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone Bob Yantosca (Harvard) Performance


Photophysical oxidation of aldehydes Paulo Sebastianelli/Jenny Fisher (University of Wollongong) Chemistry
DMS updates Will Porter (UCR) Chemistry
Furans emission and chemistry Lixu Jin/Lu Hu(U Montana) Chemistry +
Emissions
Cl2 prodcution from Fe aerosol Qianjie Chen (Hong Kong Poly)/Becky Alexander (UW) Chemistry
VCP, cooking: tracers species added i.e., D5, ethanol affecting PAN Kevin Bates (CU Boulder) Emissions
bidirectional land-atmosphere exchange for Hg Yuying Cui (MIT/Tsinghua) Hg simulation
OH covariances for inversions Elise Penn (Harvard) Inversions
CESM2-GC offline Seb Eastham (ICL); Lee Murray (Rochester) Met fields
Re-binning of off-line sea salt and dust for TOMAS Betty Croft (Dalhousie) Microphysics
TOMAS nucleation updates Sam O'Donnell (CSU) Microphysics
Stratospheric aerosol APM Fangqun Yu (SUNY Albany) Microphysics
Transition from MERRA-2 to GEOS-IT for benchmarking Yuanjian Zhang (WashU) Quality Assurance
Automate integration testing on AWS Yidan Tang (WashU) Quality Assurance
Integration testing: Add across end of year run GCST Quality Assurance
Integration testing: Add GEOS-IT Yuanjian Zhang (WashU) Quality Assurance
Separate mixing, emissions, and drydep Yuanjian Zhang (WashU) Structural
Intel IFX compiler Bob Yantosca (Harvard) Structural
CMake option to only build libraries but not executable, also passing C-preprocessor statements to turn off code Bob Yantosca (Harvard); Lee Murray (Rochester) Structural
Remove differences introduced when breaking up GC-Classic runs in time; and flexible precision in HEMCO Lizzie Lundgren (Harvard) Structural
Limit allocation of State_Met to what is needed per simulation Melissa Sulprizio (Harvard) Structural

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
Modal aerosol model (MAM7) in GCHP Shreya Sharma (MIT) Aerosols
Online OCIM ocean biogeochemistry Lee Murray (Rochester); Hannah Horowitz (UIUC); Chris Holmes (FSU) Chemistry
Perchlorate chemistry Yuk Chun Chan (UW) Chemistry
Non-stomatal dry deposition (2-layer canopy model) Michael Vermeuel (Purdue) Dry Deposition
Continental chloride particle emissions (salty dust, road salt) Jessica Haskins (Utah) Emissions
Multivolatility emission inventory to address gaps in EDGAR/HTAP etc. Ruochong (Tshingua) Emissions
Lightning NOx production rates Bex Horner (UCL) Emissions
HFO and CF3CHO Beth Killen/Jenny Fisher (University of Wollongong) Chemistry
Glyoxal updates from isoprene Tzung-May Fu (SUSTech) Chemistry
Iodine chemistry Becky Alexander (UW)/Xuan Wang (cityU HK) Chemistry
Chlorine/Perchlorate Yukchun Chan (UW) Chemistry
Playa dust chemistry to improve Cl over land Jessica Haskins (Utah) Chemistry
GFED5 biomass burning Eric Roy (MIT) Emissions
Ocean Hg surface concentrations for 2010-2020 from multi-model ensemble Eric Roy (MIT)/Ari Feinberg (IQF-CSIC) Hg simulation
Soil Hg emissions 2010-2020 Eric Roy (MIT)/Ari Feinberg (IQF-CSIC) Hg simulation
Air-sea exchange parameterization Eric Roy (MIT) Hg simulation
Soil Hg emissions parameterization Ari Feinberg (IQF-CSIC) Hg simulation
Sea salt uptake of GOM Eric Roy (MIT) Hg simulation
Photoreduction rate constant Eric Roy (MIT) Hg simulation
new observations (2010-2020) in standardized Hg benchmark for intercomparison Eric Roy (MIT)/Ari Feinberg (IQF-CSIC) Hg simulation
Hg simulation in GCHP Eric Roy (MIT) Hg simulation
OCIM - biogeochemical model - (C/P/N/Fe - no Hg yet) (MATLAB) Hannah Horowitz (UIUC) Hg simulation
possibly updating Hg oxidation chemistry based on Utah field campaigns Jessica Haskins (Utah) Hg simulation
New halogen/aerosol fields (surface area / AOD) from 10-year 14.4 benchmark simulation available online Viral Shah (NASA GMAO); Eric Roy (MIT); Ari Feinberg (IQF-CSIC) Input data
Extend IMI to CO2 (ICI) Hannah Nesser (JPL) Inversions
Global emission inventory of metals Tzung-May Fu (SUSTech); He Zhong Tian (Peking Normal U) Metals simulation
Investigate and improve performance of aerosol chemistry Bob Yantosca (Harvard) Performance
PAH - update from version 11 Lexia Cicone (MIT) POPs simulation
Species database more accessible; doc updates; TOL discussion Jessica Haskins (Utah) Structural
Stretched-grid plotting in GCPy Killian Murphy (York) Tools
Model inter-comparison of transport (GEOS, GCHP, GCClassic) Lizzie Lundgren (Harvard), Emma Knowland (NASA) Transport
Comparing mass fluxes in GCHP vs. traditional lat/lon wind Yuanjian Zhang (WashU), Seb Eastham (ICL) Transport
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