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

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(→‎Slated for v11-03)
(→‎Feature integration in progress)
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On this page we list the current priorities for GEOS-Chem development. This list was compiled by the user Working Groups at the last [http://acmg.seas.harvard.edu/geos/meetings/2017/index.html International GEOS-Chem Meeting (IGC8)] in May 2017 and will be 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 ==
  
−
== List of priorities from IGC8 ==
+
See the links below for items merged and awaiting release.
  
−
The items listed below are in different stages of readiness and will be included in future versions of the model.
+
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="300px"|Mergeable at any time
 +
!width="200px"|Version in development
  
−
=== Slated for v11-03 ===
+
|-valign="top"
 +
|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
 +
|align="center"|'''[[GEOS-Chem 14.5.0]]'''
  
−
The following updates are now slated for inclusion into [[GEOS-Chem v11-03]]:
+
|}
 +
 
 +
== Feature integration in progress ==
 +
 
 +
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="400px"|Feature
+
!width="200px"|Feature
−
!width="250px"|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
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Transport updates
+
|ALK4 & R4N2 chemistry
 +
|Jared Brewer (UMN)
 +
|Chemistry
 +
|Simple
 +
|
 +
*[https://github.com/geoschem/geos-chem/pull/2352 geos-chem PR #1625]
 +
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., 2023.]
  
 
|-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]]
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
−
|Transport WG<br>[[GCST]]
+
|Yi Wang (Iowa)<br>Jun Wang (Iowa)
−
|Benchmarking
+
|Emissions
 +
|Medium
 
|
 
|
−
*Ready to be added, ask GMAO
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+
|Fix pressure handling in HEMCO standalone
 +
|Melissa Sulprizio (Harvard)
 +
|HEMCO
 +
|Simple
 +
|
 +
*[https://github.com/geoschem/HEMCO/issues/277 HEMCO issue #277]
  
 
|-valign="top"
 
|-valign="top"
−
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+
|Fix obspack - not working in 14.4.0
−
|Sebastian Eastham (MIT)
+
|Bob Yantosca (Harvard)
−
|Science
+
|Diagnostics
 +
|Medium
 
|
 
|
−
*Ready to be added
+
*[https://github.com/geoschem/geos-chem/issues/2328 geos-chem issue #2328]
 +
|-valign="top"
 +
|Horizontal flux regridding fix in MAPL
 +
|Tom Clune (GMAO)
 +
|GCHP
 +
|Medium
 +
|
 +
*[https://github.com/geoschem/MAPL/pull/36 MAPL PR #36]
  
 
|-valign="top"
 
|-valign="top"
−
|[[Chemistry_Issues#Script_for_evaluating_carbon_balance|Script for checking N, C, etc. balance in chemistry mechanism]]
+
|Cloud-J 7.7.2 for greater flexibility in external models
−
|Barron Henderson (EPA)
+
|Lizzie Lundgren (Harvard)
−
|Software
+
|Photolysis
 +
|Medium
 
|
 
|
 +
*[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"
−
!colspan="4" bgcolor="#CCFFFF"|Emissions updates
+
|GCHP run directory improvements for mass flux, stretched grid, and GEOS-IT runs
 +
|Lizzie Lundgren (Harvard)
 +
|GCHP
 +
|Medium
 +
|
 +
*[https://github.com/geoschem/geos-chem/pull/2326 geos-chem PR #2326]
  
 
|-valign="top"
 
|-valign="top"
−
|[[Volcanic_SO2_emissions_from_Aerocom#OMI-based_volcanic_emissions|OMI-based volcanic emissions 2005-2012]]
+
|Fixes for GEOS-Chem 14.4 in CESM
−
|Cui Ge (U. Iowa)<br>Jun Wang (U. Iowa)
+
|Haipeng Lin (Harvard)<br>Lizzie Lundgren (Harvard)
−
|Science
+
|CESM
 +
|Medium
 
|
 
|
−
*Need to implement a fix to handle missing data for 2012/09 thru 2012/12. We can do one of 2 things:
+
*[https://github.com/geoschem/geos-chem/pull/2348 geos-chem PR #2348]
−
**Create files with zero emissions for 2012/09 thru 2012/12.
+
*[https://github.com/geoschem/geos-chem/pull/2349 geos-chem PR #2349]
−
***But because data for 2013- is copied from 2012, this will mean that the last 3 months of the year have no volcano emissions.
+
* More PRs in progress
−
**Link to the existing volcano emsisions files for September thru December
+
 
 +
|}
 +
 
 +
== Prioritized and in the queue ==
 +
 
 +
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
 +
 
 +
{| 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"
 
|-valign="top"
−
|[[Mineral_dust_aerosols#Anthropogenic_PM2.5_dust_source_in_GEOS-Chem|Anthropogenic PM2.5 dust source]]
+
|New version of CEDS at 0.1 deg
−
|Sajeev Philip (Dalhousie)
+
|Dandan Zhang (WashU)
−
|Science
+
|Emissions
 +
|Simple
 +
|Delivered June 2024
 
|
 
|
−
*Need to fix an "under-the-hood" issue in HEMCO that causes 1200 Tg of dust to be emitted by this update.
+
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
  
 
|-valign="top"
 
|-valign="top"
−
|[[FINNv1_biomass_burning_emissions|FINN biomass burning emissions for 2014-2016]]
+
|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
−
|Barron Henderson (US EPA)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GC-Classic
 +
|Medium
 
|
 
|
−
*Pending receipt of corrected data files
+
|
 +
*[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
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Delivery status
 +
!width="300px"|Notes and Refereneces
 +
 
  
 
|-valign="top"
 
|-valign="top"
−
|GFAS biomass burning emissions
+
|Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol
−
|Mat Evans (York)
+
|Camilo Serrano (McGill)<br>Andreas Zuend (McGill)
−
|Science
+
|Aerosols
 +
|Not delivered
 
|
 
|
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+
|Extend aerosol settling
 +
|Eloise Marais (UCL)
 +
|Aerosols
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt aerosol alkalinity
+
|Comment back in Ca, Mg, and K cations in aerosol thermo (HETP)
−
|Qianjie Chen (UW)<br>Becky Alexander (UW)<br>Xuan Wang (Harvard)
+
|Becky Alexander (UW)
−
|Science
+
|Aerosols
 +
|Not delivered
 
|
 
|
−
*UW version delivered to GCST (Nov 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|VBS SOA option
+
|Seasalt aerosol from sea ice leads (2002-2011)
−
|Rokjin Park (SNU)
+
|Hannah Horrowitz (UIUC)
−
|Science
+
|Aerosols
 +
|Not delivered
 
|
 
|
−
*Code has been implemented in the ancient v9-01-02 version. 
+
*Offline and online, ready to go in HEMCO (optional in addition to existing seasalt emissions)
−
*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
+
|P/L species should not contribute to the error norm
 +
|Obin Sturm (USC)
 +
|Chemistry
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|Oxidant fields from v10 for 2006-2012
+
|Additional 6 peroxynitrates (many PANs like species); improve ALK4 & add ALK6
−
*3D chemical source for CO2, CO
+
|Katie Travis (NASA LARC)
−
*OH for tagged CO & CH4
+
|Chemistry
−
|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
+
|Monoterpene oxidation more species & oxidation products
−
|Eloise Marais (U. Birmingham)
+
|Kevin Bates (CU Boulder)
−
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Dec 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|West Africa nested-grid for GEOS-FP
+
|PPN photolysis
−
|Mat Evans (York)<br>Eleanor Morris (York)
+
|Eloise Marais (UCL)
−
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
+
|Hlobal organic N dep from various emissions; nitrate aromatics updates
−
|Becky Alexander (UW)
+
|May Fu (SUSTech)
−
|Science
+
|Chemistry +<br>Deposition
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Arsenic simulation
+
|ALK4 from biogenic vs anthro
−
|Shiliang Wu (MT)
+
|Jared Brewer (UMN)
−
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Structural updates
+
|Dry deposition to F90 to improve readability
 +
|Chris Holmes (FSU)
 +
|Dry Deposition
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updated flux diagnostics
+
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
−
|Chris Holmes (Florida State)<br>[[GCST]]
+
|Joey Lam  (CUHK)<br>Amos Tai (CUHK)
−
|Structural/<br>Benchmarking
+
|Dry deposition
 +
|Delivered<br>Feb 2021
 
|
 
|
−
*Work has not yet begun
+
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
  
 
|-valign="top"
 
|-valign="top"
−
|Benchmark of stratospheric simulation
+
|FRP-based fire emissions for eastern US at 0.2 (2019-2020)
−
|Dylan Jones (U. Toronto)
+
|Chris Holmes (FSU)
−
|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
+
|China agriculture NH3 emissions
−
|Chris Holmes (FSU)<br>[[GCST]]
+
|Amos Tai (CUHK)
−
|Benchmarking
+
|Emissions
 +
|Not delivered
 
|
 
|
−
*Deferred until v11-03
 
−
*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
+
|T-dependent anthropogenic VOCs
−
|Andy Jacobson (NOAA/ESRL)
+
|May Fu (SUSTech)
−
|Structural
+
|Emissions
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (May 2017)
+
*Option. Requires processing existing anthropogenic VOC emissions to generate offline emissions to read in. Parameterised for China.
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to eliminate differences between single and multi-segmented GEOS-Chem runs
+
|New source functions for transport tracers beryllium-7 and beryllium-10
−
|[[GCST]]<br>Christoph Keller
+
|Minjie Zheng (ETH)
−
|Bug fix<br>Structural
+
|Emissions
 +
|Not delivered
 
|
 
|
 +
*https://zenodo.org/records/8372652
  
 
|-valign="top"
 
|-valign="top"
−
|Further structural updates to facilitate interfacing GEOS-Chem with external models (e.g. WRF, CAM, CESM)
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
−
|[[GCST]]
+
|Yang Li (Baylor U)<br>Loretta Mickley (Harvard)
−
|Structural
+
|Emissions
 +
|Delivered
 
|
 
|
−
*Ongoing
+
*Data involves many files- need to think about temporal frequency
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
+
|Australian emissions
 +
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
 +
|Emissions
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[FlexGrid|FlexGrid: Use HEMCO to read met fields and enable nested simulations over any custom domains]]
+
|Hg geogenic emissions (volcanic, rock weathering)
−
|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
+
|Eric Roy (MIT)
−
|Structural
+
|Emissions
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Oct 2016)
 
−
*Code is ready, we were waiting for a stable v11-02 release
 
−
*FlexGrid will facilitate adding new nested-grids or reading new met field products from disk
 
  
 
|-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]]
+
|Hg biomass burning - FINN2.5 & GFED4
−
|Seb Eastham (Harvard)
+
|Eric Roy (MIT)
−
|Science
+
|Emissions
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (May 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|Archival of roughness length for temperature z0T
+
|BCC-GC online
−
|[[GCST]]
+
|Lin Zhang (PKU)
−
|Met processing
+
|External Model
 +
|Not delivered
 
|
 
|
−
*Work has not yet begun
+
 
 +
|-valign="top"
 +
|GC-YIBS with online fire emissions
 +
|Xu Yue (NUIST)<br>Hong Liao (NUIST)
 +
|External Model
 +
|Not delivered
 +
|
 +
 
 +
|-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
 +
|
 +
*This will be the default OH, but users will have the option of selecting other OH fields
 +
 
 
|}
 
|}
  
−
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 14:12, 24 May 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="400px"|Item
+
!width="200px"|Feature
−
!width="250px"|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 v11-02 release
+
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+
|Dust non-sphericity impacts on optical properties
 +
|Inderjeet Singh (WashU)
 +
|Aerosols
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|N2O5 hydrolysis updates
+
|Fixes to stratospheric aerosol settling
−
|Viral Shah (UW)
+
|Connor Barker (UCL)<br>Eloise Marais (UCL)
−
|Science
+
|Aerosols
 
|
 
|
−
*Defer until paper is submitted (Summer 2018)
 
−
*Code from v10 (SMVGEAR) needs to be translated to v11 (FlexChem); this may take some effort
 
  
 
|-valign="top"
 
|-valign="top"
−
|H2 chemistry in UCX
+
|DMS chemistry in v14
−
|Chris Holmes (FSU)
+
|Linia Tashmim (UCR)<br>Will Porter (UCR)
−
|Science
+
|Chemistry
 
|
 
|
−
*Defer until paper is submitted
 
−
*Estimate Fall 2018 or sooner
 
  
 
|-valign="top"
 
|-valign="top"
−
|Updated chlorine chemistry
+
|KPP standalone + 3D Interface
−
|Xuan Wang (Harvard)
+
|Obin Sturm (USC)
−
|Science
+
|Chemistry
 
|
 
|
−
*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]]
+
|Load balancing in chemistry solver (GCHP)
−
|Katie Travis (MIT)
+
|Zhouran (Jordan) Sun (WashU)
−
|Structural
+
|Chemistry +<br>Performance
 
|
 
|
−
*Defer until the paper is submitted
 
  
 
|-valign="top"
 
|-valign="top"
−
|OH + NO2 rate update
+
|UCX chemistry in mesosphere (GCHP/GCClassic)
−
|Barron Henderson (EPA)
+
|Helena McDonald (MIT)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Aromatics and dicarbonyl chemistry
+
|Updated aromatic oxidation
−
|William Porter (MIT)<br>Tzung-May Fu (PKU)
+
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Document chemical mechanism in KPP file
+
|MCO3 uptake by cloud forming MP; leading to lower PAN
−
|Mat Evans (York)
+
|Laura Yang (Harvard)
−
|Structural
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Diurnal variability for NH3
+
|Implement isotope simulation for CH4 in the carbon simulation
−
|Henze group
+
|Lee Murray (Rochester)
−
|Science
+
|Chemistry
 
|
 
|
 +
*Will have to change negative emissions from soil to a first-order loss process
  
 
|-valign="top"
 
|-valign="top"
−
|Uptake of HNO3 onto coarse-mode sea salt
+
|Active mesospheric chemistry
−
|Prasad Kasibhatla (Duke)
+
|Helena McDonald (MIT)<br>Seb Eastham (ICL)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Photolysis of NITs
+
|Documentation for adding additional aerosol species
−
|Prasad Kasibhatla (Duke)
+
|Connor Barker (UCL)
−
|Science
+
|Documentation
 
|
 
|
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Emissions updates
+
|Column diagnostics
 +
|Lizzie Lundgren (Harvard)<br>Viral Shah (GMAO)
 +
|Diagnostics
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|Grid-independent lightning NOx emissions (3-hourly)
+
|TOMAS rate diagnostics -- improve performance
−
|Lee Murray (Rochester)
+
|Betty Croft (WashU/Dal)
−
|Science
+
|Diagnostics +<br>Performance
 
|
 
|
−
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
−
|Grid-independent dust emissions (hourly)
+
|Archive gamma values from heterogeneous chemistry
−
|David Ridley (MIT)
+
|Bob Yantosca (Harvard)
−
|Science
+
|Diagnostics
 
|
 
|
−
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
−
|Grid-independent biogenic emissions (hourly)
+
|RRTMG Documentation
−
|Jintai Lin (PKU)
+
|GCST
−
|Science
+
|Documentation
 
|
 
|
−
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
−
|Grid-independent sea salt emissions (hourly)
+
|Canopy Physics Model
−
|Jintai Lin (PKU)
+
|Sam Silva (MIT)
−
|Science
+
|Dry Deposition
 
|
 
|
−
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
−
|EPA-derived BC/OA emissions over US (1990-2012)
+
|Dry deposition diagnostics by land cover
−
|David Ridley (MIT)<br>Chi Li (Dalhousie)
+
|Holly Nowell (FSU)<br>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"
−
|EPA NEI2011 Version EK
+
|Dry deposition process diagnostics
−
|Zitely Tzompa-Sosa (CSU)<br>Emily Fischer (CSU)
+
|Holly Nowell (FSU)<br>Chris Holmes (FSU)
−
|Science
+
|Dry Deposition
 
|
 
|
−
*Estimate Late 2018 or sooner
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[MASAGE_NH3_inventory|MASAGE inventory in HEMCO as default]]
+
|Biomass burning for TOMAS
−
|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
+
|Nicole June (CSU)
−
|Science
+
|Emissions +<br>Microphysics
 
|
 
|
−
*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 GEOS-Chem community.
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
+
|Historic biomass burning (1750-2010)
−
|Amos Tai (CUHK)
+
|Pengfei (Gtech)
−
|Science
+
|Emissions
 
|
 
|
−
*Waiting on data
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|Rice methane emissions
−
|Fabien Paulot (NOAA/GFDL)
+
|Zichong Cheng (Harvard)
−
|Science
+
|Emissions+<br>Carbon simulation
 
|
 
|
−
*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
+
|Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.)
−
|Juliet Zhu (CSU)<br>Emily Fischer (CSU)
+
|Katie Travis (NASA)<br>Kelvin Bates (CU Boulder)
−
|Science
+
|Emissions
 
|
 
|
  
−
|-
+
|-valign="top"
−
!colspan="4" bgcolor="#CCFFFF"|Surface fluxes and land usage updates
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
 +
|Tia Scarpelli (Carbon Mapper)<br>Melissa Sulprizio (Harvard)
 +
|Emissions
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|Carbon bottom up fluxes: anthro, ocean, land
+
|New prior CO2 biospheric fluxes from CMS-FLUX and GMAO
−
|Kevin Bowman (JPL)
+
|Kevin Bowman (JPL)<br>Lesley Ott (GMAO)
−
|Science
+
|Emissions
 
|
 
|
 +
*GMAO can provide high-resolution  fluxes (as high as 12 km)
  
 
|-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
 
|
 
|
  
 
|-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
 
|
 
|
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Wet deposition updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc.
+
|Improve pressure handling in GCHP advection
−
|Sarah Safieddine (MIT)<br>GCST
+
|Yuanjian Zhang (WashU)<br>Seb Eastham (ICL)
−
|Science
+
|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
 
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|AMAP/UNEP 2035 for Hg simulation
+
|Integration testing: Add stretched grid
−
|Helene Angot (MIT)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|Quality Assurance
 
|
 
|
−
*Data is available, but has not been transferred to GCST yet
 
  
 
|-valign="top"
 
|-valign="top"
−
|Radon emission update
+
|Integration testing: Add GCAP2
−
|Bo Zhang (NIA/NASA Langley)
+
|GCST
−
|Science
+
|Quality Assurance
 
|
 
|
−
*Defer until paper is published
 
−
*Estimate Fall 2018
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Integration testing: Add GCHP mass flux run
−
|Colin Thackray (Harvard)<br>Carey Friedman (formerly MIT)<br>Helen Amos (formerly Harvard)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|New EDGAR sectoral inventory for Hg (1970-2012)
+
|Integration testing: Add run with all diagnostics turned on
−
|Amanda Giang (MIT)
+
|GCST
−
|Science
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Archive GISS met fields from RCP scenarios for community
+
|Integration testing: Reinstate TOMAS40
−
|Lee Murray (Rochester)
+
|Betty Croft (Dalhousie/WashU)
−
|Science
+
|Quality Assurance
 
|
 
|
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Structural updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|Clean up SOA diagnostics
+
|Strat-adjusted RF in GCC and GCHP
−
|GCST
+
|Connor Barker (UCL)<br>Eloise Marais (UCL)
−
|Structural
+
|Radiation
 
|
 
|
−
*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)
+
|Continue cleanup of C-preprocessor switches
−
|GCST
+
|Lizzie Lundgren (Harvard)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Harmonizing Henry's Law coefficients across wet and dry deposition
+
|Updates to Luo deposition scheme
−
|[[GCST]]
+
|Gan Luo (Albany)
−
|Science
+
|Wet Deposition
 
|
 
|
−
*Work not started yet. Will need input from the community.
+
*New version, keep as switch (not default)
−
 
+
−
|-
+
−
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
+
  
 
|-valign="top"
 
|-valign="top"
−
|CESM-GC offline coupling in standard model + benchmark
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
−
|Rokjin Park (SNU)<br>Daniel Rothenberg (MIT)
+
|Gan Luo (Albany)<br>Fangqun Yu (Albany)
−
|Science
+
|Wet Deposition
 
|
 
|
−
*Dan Rothenberg is no longer working on GEOS-Chem
 
−
*Seb Eastham is already working on CESM-GCHP interface
 
  
 
|}
 
|}
  
−
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 19:16, 23 May 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="400px"|Item
+
!width="200px"|Feature
−
!width="250px"|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]
+
|ML algorithms for bulk aerosol
−
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Arshad Nair (Albany)<br>Fangqun Yu (Albany)
−
|Science
+
|Aerosols
 
|
 
|
−
*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)
+
|Heterogeneous sulfate chemistry
−
|Lu Shen (Harvard)<br>Melissa Sulprizio (Harvard)
+
|Katie Travis (NASA)
−
|Science
+
|Chemistry
 
|
 
|
−
*Defer until MEIC paper is published
 
  
 
|-valign="top"
 
|-valign="top"
−
|GISS-GC (ICECAP/GCAP2) in standard model + benchmark
+
|H2 as an active species
−
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|Seb Eastham (ICL)
−
|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"
 
|-valign="top"
−
|GISS-GC GCHP
+
|HCN, acetonitrile as fire tracers
−
|Lee Murray (Rochester)<br>Pengfei Liu (Harvard)<br>Yang Li (Harvard)
+
|Kevin Bates (CU Boulder)
−
|Science
+
|Chemistry
 
|
 
|
−
*Rochester and Harvard groups are coordinating, to avoid duplication of effort
 
  
 
|-valign="top"
 
|-valign="top"
−
|CESM-GC GCHP
+
|Implement ethane in carbon simulation
−
|Seb Eastham (MIT)
+
|Yuzhong Zhang (Westlake)
−
|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:
+
|VCPs emissions
−
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Kelvin Bates (CU Boulder)
−
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
|Emissions
−
|[[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
+
|Mesospheric source of CO
−
|Shiliang Wu (MNT)
+
|Dylan Jones (UofT)<br>Pam Wales (NASA GSFC)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Interannually varying ocean model BCs for Hg from ocean model
+
|Drought-stress algorithm
−
|Colin Thackray (Harvard)
+
|Wei Li (Houston)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|PAH & PFCA simulations
+
|Physically-based resolution correction for BVOC emissions using MEGAN
−
|Peter Ivatt (York)<br>Mat Evans (York)<br>Noelle Selin (MIT)<br>Colin Thackray (Harvard)
+
|May Fu (SUSTech)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|CH4 in full chemistry simulation
+
|Canadian forest fire prediction system (Canada government forecast model)
−
|Seb Eastham (Harvard)
+
|Robin Stevens (Montreal)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Standard future land use maps (PFT, LAI) for RCP/CMIP6 simulations
+
|Furan emission factors (updates existing emissions)
−
|Colette Heald (MIT)<br>Loretta Mickley (Harvard)
+
|Lu Hu (Montana)<br>Lixu Jin (Montana)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Archive GISS met fields from CMIP6 scenarios for community
+
|Cooking emissions (not biofuel)
 +
|Kelvin Bates (CU Boulder)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|State-specific annual emissions scaling factors (US) (1990-2021)
 +
|Ishir Dutta (MIT)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|GISS-GC online
 
|Lee Murray (Rochester)
 
|Lee Murray (Rochester)
−
|Science
+
|External model
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to cold-temperature deposition
+
|Hybrid MPI-OpenMP in GCHP
−
|Lyatt Jaegle (UW)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)<br>Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Simple parameterization for CO2-O3 dependence of stomatal resistance
+
|MAPL3: Update to MAPL3 in GCHP, including replacement of ExtData.rc and HISTORY.rc with YAML files
−
|Amos Tai (CUHK)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|NH3 emissions over China
+
|MAPL3: Comply with MAPL "positive" standard in GCHP diagnostic files
−
|Lin Zhang (PKU)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Using GEOS-Chem within GEOS-5
+
|MAPL3: Wildcards in GCHP History
−
|Loretta Mickley (Harvard)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Carbon cycle outputs in xCO2, xCH4 as a diagnostic
+
|MAPL3: Output emissions with positive up convention in GCHP
−
|Beata Bukosa (Wollongong)<br>Dylan Jones (UofT)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Seasonal EMEP emissions back to 1980
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
−
|Mat Evans (York)
+
|Bob Yantosca (Harvard)
−
|Science
+
|Performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to NO2 dry deposition
+
|Photophysical oxidation of aldehydes
−
|Brian Boys (Dalhousie)
+
|Paulo Sebastianelli (Wollongong)<br>Jenny Fisher (Wollongong)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|APM update and integration with most recent GEOS-Chem version
+
|DMS updates
−
|Gan Luo (SUNY Albany)
+
|Will Porter (UCR)
−
|Structural
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Cosmogenic tracer production
+
|Furans emission and chemistry
−
|Lee Murray (Rochester)
+
|Lixu Jin (Montana)<br>Lu Hu (Montana)
−
|Science
+
|Chemistry + <br>Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Explore resolution-consistent dust emissions
+
|Cl2 prodcution from Fe aerosol
−
*Make high-res concentrations or mass fluxes available offline, implement in met field processing
+
|Qianjie Chen (HK Poly)<br>Becky Alexander (UW)
−
|David Ridley (MIT)<br>GCST<br>Nested Model WG
+
|Chemistry
−
|Science
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Dust emissions at nested-grid resolutions
+
|VCP, cooking: tracers species added i.e., D5, ethanol affecting PAN
−
|Yuxuan Wang (U. Houston)<br>Jun Wang (U. Iowa)
+
|Kevin Bates (CU Boulder)
−
|Science
+
|Emissions
 
|
 
|
−
*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]]
+
|bidirectional land-atmosphere exchange for Hg
−
|Duncan Fairlie (NASA/LARC)  
+
|Yuying Cui (MIT/Tsinghua)
−
|Science
+
|Hg simulation
 
|
 
|
  
−
|}
+
|-valign="top"
 +
|OH covariances for inversions
 +
|Elise Penn (Harvard)
 +
|Inversions
 +
|
  
−
=== Longer term (12-24 months)===
+
|-valign="top"
 +
|CESM2-GC offline
 +
|Seb Eastham (ICL)<br>Lee Murray (Rochester)
 +
|Met fields
 +
|
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|- bgcolor="#cccccc"
+
|Re-binning of off-line sea salt and dust for TOMAS
−
!width="400px"|Item
+
|Betty Croft (Dalhousie)
−
!width="250px"|Author(s)
+
|Microphysics
−
!width="100px"|Type
+
|
−
!width="300px"|Status
+
  
 
|-valign="top"
 
|-valign="top"
−
|GCHP stretched grid
+
|TOMAS nucleation updates
−
|Jiawei Zhuang (Harvard)
+
|Sam O'Donnell (CSU)
−
|Science
+
|Microphysics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|1/8 degree nested-grid simulations with GEOS-FP
+
|Stratospheric aerosol APM
−
|Nested Model WG
+
|Fangqun Yu (SUNY Albany)
−
|Science
+
|Microphysics
 
|
 
|
−
*Wait for more interest
 
  
 
|-valign="top"
 
|-valign="top"
−
|Embedding GEOS-Chem into CESM
+
|Transition from MERRA-2 to GEOS-IT for benchmarking
−
|Jean-Francois Lamarque (NCAR)
+
|Yuanjian Zhang (WashU)
−
|Science
+
|Quality Assurance
 
|
 
|
−
*NOTE: Seb Eastham is already working on this
 
  
 
|-valign="top"
 
|-valign="top"
−
|Adjoint of carbon cycle simulation in GCHP
+
|Automate integration testing on AWS
−
|Kevin Bowman (JPL)
+
|Yidan Tang (WashU)
−
|Science
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Isoprene chemistry v2 (new Caltech update)
+
|Integration testing: Add across end of year run
−
|Kelvin Bates (Caltech)
+
|GCST
−
|Science
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Contemporary land cover: developing historical and updated GEOS-Chem land cover maps based on satellite remote sensing
+
|Integration testing: Add GEOS-IT
−
|Jeff Geddes (BU)
+
|Yuanjian Zhang (WashU)
−
|Science
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Farquhar-Ball-Barry model to calculate stomatal resistance
+
|Separate mixing, emissions, and drydep
−
|Amos Tai (CUHK)<br>Jeff Geddes (BU)
+
|Yuanjian Zhang (WashU)
−
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Impacts of chemistry on ecosystem/carbon cycle
+
|Intel IFX compiler
−
|Kevin Bowman (JPL)<br>Anthony Bloom (JPL)
+
|Bob Yantosca (Harvard)
−
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Improved lightning emission scheme
+
|CMake option to only build libraries but not executable, also passing C-preprocessor statements to turn off code
−
|Lee Murray (Rochester)
+
|Bob Yantosca (Harvard)<br>Lee Murray (Rochester)
−
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Resolution-independent lightning NOx
+
|Remove differences introduced when breaking up GC-Classic runs in time; and flexible precision in HEMCO
−
|Lee Murray (Rochester)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Bidirectional NH3 emissions
+
|Limit allocation of State_Met to what is needed per simulation
−
|Juliet Zhu (CSU)
+
|Melissa Sulprizio (Harvard)
−
|Science
+
|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.
 +
 +
{| 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"
−
|Country-based weekday/weekend variability for EDGAR 4.2
+
|Modal aerosol model (MAM7) in GCHP
−
|Lee Murray (Rochester)<br>Christoph Keller (Harvard)
+
|Shreya Sharma (MIT)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Update keytone photolysis
+
|Online OCIM ocean biogeochemistry
−
|Jared Brewer (CSU)<br>Emily Fischer (CSU)
+
|Lee Murray (Rochester)<br>Hannah Horowitz (UIUC)<br>Chris Holmes (FSU)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Small alkyl nitrates
+
|Perchlorate chemistry
−
|Jenny Fisher (Wollongong)
+
|Yuk Chun Chan (UW)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|YIBS-GC chemistry-biosphere-fire coupling
+
|Non-stomatal dry deposition (2-layer canopy model)
−
|Loretta Mickley (Harvard)<br>Xu Yue (IAP)
+
|Michael Vermeuel (Purdue)
−
|Science
+
|Dry Deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Nitrogen-LAI coupling
+
|Continental chloride particle emissions (salty dust, road salt)
−
|Lin Zhang (PKU)<br>Amos Tai (CUHK)
+
|Jessica Haskins (Utah)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Implementing humidity/VPD dependence of dry deposition
+
|Multivolatility emission inventory to address gaps in EDGAR/HTAP etc.
−
|Jennifer Murphy (U. Toronto)
+
|Ruochong (Tshingua)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|SO2 wet scavenging
+
|Lightning NOx production rates
−
|Duncan Fairlie (NASA Langley)
+
|Bex Horner (UCL)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Heterogeneous sulfate production
+
|HFO and CF3CHO
−
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Beth Killen (Wollongong)<br>Jenny Fisher (Wollongong)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|MOSAIC implementation
+
|Glyoxal updates from isoprene
−
|Sebastian Eastham (Harvard)
+
|Tzung-May Fu (SUSTech)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Particle size climatology
+
|Iodine chemistry
−
|Fangqun Yu (SUNY Albany)
+
|Becky Alexander (UW)<br>Xuan Wang (CUHK)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt/dust size distribution
+
|Chlorine/Perchlorate
−
|David Ridley (MIT)<br>Colette Heald (MIT)
+
|Yukchun Chan (UW)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to GTMM
+
|Playa dust chemistry to improve Cl over land
−
|Rebecca Stern (Harvard)
+
|Jessica Haskins (Utah)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Tracer transport ocean
+
|GFED5 biomass burning
−
|Chris Holmes (FSU)
+
|Eric Roy (MIT)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Include Hg in full chemistry simulation
+
|Ocean Hg surface concentrations for 2010-2020 from multi-model ensemble
−
|Noelle Selin (MIT)
+
|Eric Roy (MIT)<br>Ari Feinberg (IQF-CSIC)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Goddard seasonal weather prediction in GCHP
+
|Soil Hg emissions 2010-2020
−
|Kevin Bowman (JPL)
+
|Eric Roy (MIT)<br>Ari Feinberg (IQF-CSIC)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Climate index diagnostics (drought, etc.)
+
|Air-sea exchange parameterization
−
|Chemistry-ecosystems-climate WG
+
|Eric Roy (MIT)
−
|Structural
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Joint CO/CO2/CH4 simulation
+
|Soil Hg emissions parameterization
−
|Nicholas Deutscher (U. Wollongong)
+
|Ari Feinberg (IQF-CSIC)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Carbon coupling: oceans and terrestrial models
+
|Sea salt uptake of GOM
−
|Chris Holmes (FSU)
+
|Eric Roy (MIT)
−
|Science
+
|Hg simulation
 
|
 
|
−
*Ocim-pure physical transport, ECCO-Darwin ocean biogeochemistry
 
  
 
|-valign="top"
 
|-valign="top"
−
|DMS oxidation scheme updating
+
|Photoreduction rate constant
−
|Qianjie Chen (UW)<br>Chemistry WG
+
|Eric Roy (MIT)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Limiting NH3 uptake due to OA
+
|new observations (2010-2020) in standardized Hg benchmark for intercomparison
−
|Rachel Silvern (Harvard)
+
|Eric Roy (MIT)/Ari Feinberg (IQF-CSIC)
−
|Science
+
|Hg simulation
 
|
 
|
  
−
|}
+
|-valign="top"
 +
|Hg simulation in GCHP
 +
|Eric Roy (MIT)
 +
|Hg simulation
 +
|
  
−
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 15:32, 23 May 2018 (UTC)
+
|-valign="top"
 +
|OCIM - biogeochemical model - (C/P/N/Fe - no Hg yet) (MATLAB)
 +
|Hannah Horowitz (UIUC)
 +
|Hg simulation
 +
|
  
−
=== Currently not prioritized ===
+
|-valign="top"
 +
|possibly updating Hg oxidation chemistry based on Utah field campaigns
 +
|Jessica Haskins (Utah)
 +
|Hg simulation
 +
|
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|- bgcolor="#cccccc"
+
|New halogen/aerosol fields (surface area / AOD) from 10-year 14.4 benchmark simulation available online
−
!width="400px"|Item
+
|Viral Shah (NASA GMAO); Eric Roy (MIT); Ari Feinberg (IQF-CSIC)
−
!width="250px"|Author(s)
+
|Input data
−
!width="100px"|Type
+
|
−
!width="300px"|Status
+
  
 +
|-valign="top"
 +
|Extend IMI to CO2 (ICI)
 +
|Hannah Nesser (JPL)
 +
|Inversions
 +
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem_species_units|Uniformity of units]]
+
|Global emission inventory of metals
−
|[[GCST]]
+
|Tzung-May Fu (SUSTech); He Zhong Tian (Peking Normal U)
−
|Structural
+
|Metals simulation
 
|
 
|
−
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.
 
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt emission from sea ice
+
|Investigate and improve performance of aerosol chemistry
−
|Jiayue Huang (UW)
+
|Bob Yantosca (Harvard)
−
|Science
+
|Performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Re-evaluation of SST dependence of sea salt emissions
+
|PAH - update from version 11
−
|Jiayue Huang (UW)
+
|Lexia Cicone (MIT)
−
|Science
+
|POPs simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#Discussion_of_LAI_Data_Sources|Update MODIS LAI fields through 2015]]
+
|Species database more accessible; doc updates; TOL discussion
−
|Barron Henderson (UF)
+
|Jessica Haskins (Utah)
−
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Lightning NOx chemistry parameterization
+
|Stretched-grid plotting in GCPy
−
|Alicia Gressent (MIT)
+
|Killian Murphy (York)
−
|Science
+
|Tools
 
|
 
|
  
−
|}
+
|-valign="top"
 +
|Model inter-comparison of transport (GEOS, GCHP, GCClassic)
 +
|Lizzie Lundgren (Harvard), Emma Knowland (NASA)
 +
|Transport
 +
|
  
−
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 20:54, 23 May 2018 (UTC)
+
|-valign="top"
 +
|Comparing mass fluxes in GCHP vs. traditional lat/lon wind
 +
|Yuanjian Zhang (WashU), Seb Eastham (ICL)
 +
|Transport
 +
|
 +
 
 +
|}

Revision as of 13:36, 26 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
ALK4 & R4N2 chemistry Jared Brewer (UMN) Chemistry Simple
New soil NOx parameterization Yi Wang (Iowa)
Jun Wang (Iowa) 		Emissions Medium
Fix pressure handling in HEMCO standalone Melissa Sulprizio (Harvard) HEMCO Simple
Fix obspack - not working in 14.4.0 Bob Yantosca (Harvard) Diagnostics 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
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 (McGill)
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 Horrowitz (UIUC) Aerosols Not delivered
  • Offline and online, ready to go in HEMCO (optional in addition to existing seasalt emissions)
P/L species should not contribute to the error norm Obin Sturm (USC) Chemistry Not delivered
Additional 6 peroxynitrates (many PANs like species); improve ALK4 & add ALK6 Katie Travis (NASA LARC) Chemistry Not delivered
Monoterpene oxidation more species & oxidation products Kevin Bates (CU Boulder) Chemistry Not delivered
PPN photolysis Eloise Marais (UCL) Chemistry Not delivered
Hlobal organic N dep from various emissions; nitrate aromatics updates May Fu (SUSTech) Chemistry +
Deposition 		Not delivered
ALK4 from biogenic vs anthro Jared Brewer (UMN) Chemistry Not delivered
Dry deposition to F90 to improve readability Chris Holmes (FSU) Dry Deposition Not delivered
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam (CUHK)
Amos Tai (CUHK) 		Dry deposition Delivered
Feb 2021
FRP-based fire emissions for eastern US at 0.2 (2019-2020) 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
  • Option. Requires processing existing anthropogenic VOC emissions to generate offline emissions to read in. Parameterised for China.
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 U)
Loretta Mickley (Harvard) 		Emissions Delivered
  • Data involves many files- need to think about temporal frequency
Australian emissions Stephen MacFarlane (Wollongong)
Jenny Fisher (Wollongong) 		Emissions Not delivered
Hg geogenic emissions (volcanic, rock weathering) Eric Roy (MIT) Emissions Not delivered
Hg 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 (NUIST)
Hong Liao (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
  • This will be the default OH, but users will have the option of selecting other OH fields

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 (UCL)
Eloise Marais (UCL) 		Aerosols
DMS chemistry in v14 Linia Tashmim (UCR)
Will Porter (UCR) 		Chemistry
KPP standalone + 3D Interface Obin Sturm (USC) 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 (Wollongong)
Jenny Fisher (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
  • Will have to change negative emissions from soil to a first-order loss process
Active mesospheric chemistry Helena McDonald (MIT)
Seb Eastham (ICL) 		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
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 (FSU)
Chris Holmes (FSU) 		Dry Deposition
Dry deposition process diagnostics Holly Nowell (FSU)
Chris Holmes (FSU) 		Dry Deposition
Biomass burning for TOMAS Nicole June (CSU) Emissions +
Microphysics
Historic biomass burning (1750-2010) Pengfei (Gtech) Emissions
Rice methane emissions Zichong Cheng (Harvard) Emissions+
Carbon simulation
Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.) Katie Travis (NASA)
Kelvin Bates (CU Boulder) 		Emissions
Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3) Tia Scarpelli (Carbon Mapper)
Melissa Sulprizio (Harvard) 		Emissions
New prior CO2 biospheric fluxes from CMS-FLUX and GMAO Kevin Bowman (JPL)
Lesley Ott (GMAO) 		Emissions
  • GMAO can provide high-resolution fluxes (as high as 12 km)
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
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 (UCL)
Eloise Marais (UCL) 		Radiation
Continue cleanup of C-preprocessor switches Lizzie Lundgren (Harvard) Structural
Updates to Luo deposition scheme Gan Luo (Albany) Wet Deposition
  • New version, keep as switch (not default)
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 (Albany)
Fangqun Yu (Albany) 		Aerosols
Heterogeneous sulfate chemistry Katie Travis (NASA) Chemistry
H2 as an active species Seb Eastham (ICL) 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 (NASA GSFC) 		Emissions
Drought-stress algorithm Wei Li (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 Stevens (Montreal) Emissions
Furan emission factors (updates existing emissions) Lu Hu (Montana)
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 (Wollongong)
Jenny Fisher (Wollongong) 		Chemistry
DMS updates Will Porter (UCR) Chemistry
Furans emission and chemistry Lixu Jin (Montana)
Lu Hu (Montana) 		Chemistry +
Emissions
Cl2 prodcution from Fe aerosol Qianjie Chen (HK 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 (Wollongong)
Jenny Fisher (Wollongong) 		Chemistry
Glyoxal updates from isoprene Tzung-May Fu (SUSTech) Chemistry
Iodine chemistry Becky Alexander (UW)
Xuan Wang (CUHK) 		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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