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

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(→‎Slated for inclusion in v11-02)
(→‎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 as of May 2017 ==
+
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
  
−
=== Awaiting release ===
+
|-valign="top"
 +
|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
 +
|align="center"|'''[[GEOS-Chem 14.5.0]]'''
  
−
Items awaiting release will be part of the next version release of GEOS-Chem and are actively being incorporated into the standard model and benchmarked. More information on those items can be obtained on the [[GEOS-Chem v11-02]] wiki page.
+
|}
  
−
{| border=1 cellspacing=0 cellpadding=5
+
== Feature integration in progress ==
−
|- bgcolor="#cccccc"
+
 
−
!width="400px"|Item
+
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.
−
!width="300px"|Author(s)
+
−
!width="400px"|Status
+
  
−
|- bgcolor="#ccffff"
+
{| border=1 cellspacing=0 cellpadding=5
−
!colspan="3"|Science updates
+
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[[Updates_in_JPL_Publication_15-10|Updating chemistry rate constants based on ''JPL Publication 15-10'']]
+
|ALK4 & R4N2 chemistry
−
|Barron Henderson (U. Florida)<br>Mat Evans (U. York)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Jared Brewer (UMN)
 +
|Chemistry
 +
|Simple
 
|
 
|
−
*Included in [[GEOS-Chem v11-02#v11-02a|v11-02a]] (Approved 12 May 2017)
+
*[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"
−
|[[PAN|PAN updates ]], including:
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
−
*Updates to emissions, deposition, species, chemistry
+
|Yi Wang (Iowa)<br>Jun Wang (Iowa)
−
*Ocean+biogenic ALD2 emissions from Millet al. [2010]
+
|Emissions
−
|Emily Fischer (CSU)
+
|Medium
 
|
 
|
−
*Included in [[GEOS-Chem v11-02#v11-02a|v11-02a]] (Approved 12 May 2017)
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-valign="top"
−
|[[EPA/NEI11_North_American_emissions#Monthly_mean_emissions|Monthly mean NEI2011 emissions]]
+
|Fix pressure handling in HEMCO standalone
−
|[[GCST]]<br>Katie Travis (Harvard)
+
|Melissa Sulprizio (Harvard)
 +
|HEMCO
 +
|Simple
 
|
 
|
−
*Included in [[GEOS-Chem v11-02#v11-02a|v11-02a]] (Approved 12 May 2017)
+
*[https://github.com/geoschem/HEMCO/issues/277 HEMCO issue #277]
  
 
|-valign="top"
 
|-valign="top"
−
|Enhance default GEOS-Chem simple SOA
+
|Fix obspack - not working in 14.4.0
−
|Sal Farina (Colorado State)<br>Aerosol Working Group Chairs
+
|Bob Yantosca (Harvard)
 +
|Diagnostics
 +
|Medium
 
|
 
|
−
*Included in [[GEOS-Chem v11-02#v11-02c|v11-02c]] (Approved 21 Sep 2017)
+
*[https://github.com/geoschem/geos-chem/issues/2328 geos-chem issue #2328]
−
 
+
 
|-valign="top"
 
|-valign="top"
−
|Updates to isoprene chemistry, includes:
+
|Horizontal flux regridding fix in MAPL
−
*Fast photolysis of carbonyl nitrates
+
|Tom Clune (GMAO)
−
*Aerosol uptake of organic nitrates
+
|GCHP
−
*Updated organic deposition
+
|Medium
−
*Remove dependence of species drydep on HNO3 drydep
+
−
|Jenny Fisher (U. Wollongong)<br>Elo&iuml;se Marais (Harvard)<br>Katie Travis (Harvard)<br>Kelvin Bates (Caltech)<br>Rebecca Schwantes(Caltech)
+
 
|
 
|
−
*Included in [[GEOS-Chem v11-02#v11-02c|v11-02c]] (Approved 21 Sep 2017)
+
*[https://github.com/geoschem/MAPL/pull/36 MAPL PR #36]
  
 
|-valign="top"
 
|-valign="top"
−
|[http://acmg.seas.harvard.edu/publications/2016/Marais_SEUS_isopSOA_ACP_2016.pdf Add aqueous isoprene uptake to SOA scheme]
+
|Cloud-J 7.7.2 for greater flexibility in external models
−
|Eloise Marais (Harvard)
+
|Lizzie Lundgren (Harvard)
 +
|Photolysis
 +
|Medium
 
|
 
|
−
*Included in [[GEOS-Chem v11-02#v11-02c|v11-02c]] (Approved 21 Sep 2017)
+
*[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"
−
|[[Chemistry_Issues#Fixes_for_carbon_creating_reactions|Carbon balance (fix C creation)]]
+
|GCHP run directory improvements for mass flux, stretched grid, and GEOS-IT runs
−
|Sarah Safieddine (MIT)
+
|Lizzie Lundgren (Harvard)
 +
|GCHP
 +
|Medium
 
|
 
|
−
*Included in [[GEOS-Chem v11-02#v11-02c|v11-02c]] (Approved 21 Sep 2017)
+
*[https://github.com/geoschem/geos-chem/pull/2326 geos-chem PR #2326]
−
 
+
−
|-bgcolor="#ccffff" valign="top"
+
−
!colspan="3"|Structural/programming updates
+
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem HP|Source code updates for high performance option (GCHP)]]
+
|Fixes for GEOS-Chem 14.4 in CESM
−
|Seb Eastham (Harvard)<br>Lizzie Lundgren (Harvard)<br>Mike Long (Harvard)<br>Jiawei Zhuang (Harvard)<br>Bob Yantosca (Harvard)
+
|Haipeng Lin (Harvard)<br>Lizzie Lundgren (Harvard)
 +
|CESM
 +
|Medium
 
|
 
|
−
*Included in [[GEOS-Chem v11-02#v11-02b|v11-02b]] (Approved 16 Jun 2017)
+
*[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
  
 
|}
 
|}
  
−
=== Ready to go in ===
+
== Prioritized and in the queue ==
  
−
==== Slated for inclusion in v11-02 ====
+
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
  
−
The following items were prioritized for inclusion in [[GEOS-Chem v11-02]].
+
{| 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
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|- bgcolor="#cccccc"
+
|New version of CEDS at 0.1 deg
−
!width="400px"|Item
+
|Dandan Zhang (WashU)
−
!width="250px"|Author(s)
+
|Emissions
−
!width="80px"|Type
+
|Simple
−
!width="250px"|Status
+
|Delivered June 2024
−
 
+
|
−
|-
+
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
−
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+
  
 
|-valign="top"
 
|-valign="top"
−
|[[Chemistry_Issues#Script_for_evaluating_carbon_balance|Script for checking N, C, etc. balance in chemistry mechanism]]
+
|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
−
|Barron Henderson (EPA)
+
|Lizzie Lundgren (Harvard)
−
|Software
+
|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
 +
|-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"
−
|[http://www.atmos-chem-phys.net/16/12239/2016/ Halogen chemistry updates]
+
|Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol
−
|Tom&aacute;s Sherwen (York)<br>Johan Schmidt (Harvard)<br>Seb Eastham (MIT)<br>Lei Zhu (Harvard)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Camilo Serrano (McGill)<br>Andreas Zuend (McGill)
−
|Science
+
|Aerosols
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Jun 2017)
 
−
*Slated for [[GEOS-Chem v11-02#v11-02d|v11-02d]]
 
  
 
|-valign="top"
 
|-valign="top"
−
|[http://onlinelibrary.wiley.com/doi/10.1002/2017GL073812/abstract Sulfur oxidation by reactive halogens]
+
|Extend aerosol settling
−
|Qianjie Chen (UW)
+
|Eloise Marais (UCL)
−
|Science
+
|Aerosols
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Oct 2017)
 
−
*Slated for [[GEOS-Chem v11-02#v11-02d|v11-02d]]
 
−
*Implement as part of halogen chemistry
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Aerosol_optical_properties#Add_BC_absorption_enhancement_factor|Update density of BC to 1.8 and add absorption enhancement factor in input.geos]]
+
|Comment back in Ca, Mg, and K cations in aerosol thermo (HETP)
−
|Xuan Wang (MIT)
+
|Becky Alexander (UW)
−
|Science
+
|Aerosols
 +
|Not delivered
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jan 2016)
 
−
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[NOx-Ox-HC-aerosol#Monthly mean surface distributions|Monthly mean surface methane distributions]]
+
|Seasalt aerosol from sea ice leads (2002-2011)
−
|Lee Murray (NASA GISS/LDEO)
+
|Hannah Horrowitz (UIUC)
−
|Science
+
|Aerosols
 +
|Not delivered
 
|
 
|
−
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
+
*Offline and online, ready to go in HEMCO (optional in addition to existing seasalt emissions)
  
 
|-valign="top"
 
|-valign="top"
−
|[[UCX_chemistry_mechanism#v11-02|Remove initial stratospheric 2D mixing ratio option]]
+
|P/L species should not contribute to the error norm
−
|Seb Eastham (Harvard)
+
|Obin Sturm (USC)
−
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
−
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[UCX_chemistry_mechanism#UCX_stratospheric_water_boundary_condition_update|UCX stratospheric water boundary condition update]]
+
|Additional 6 peroxynitrates (many PANs like species); improve ALK4 & add ALK6
−
|Chris Holmes (UC Irvine)<br>Seb Eastham (Harvard)
+
|Katie Travis (NASA LARC)
−
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
−
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
 
−
*Delivered to GCST (Jan 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Stratospheric_chemistry#Prod.2Floss_rates_from_UCX|Use monthly mean stratospheric prod/loss rates from UCX simulation for all species]]
+
|Monoterpene oxidation more species & oxidation products
−
|[[GCST]]
+
|Kevin Bates (CU Boulder)
−
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Nov 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Metal_catalyzed_oxidation_of_SO2|Metal catalyzed oxidation of SO2]] (as a switch)
+
|PPN photolysis
−
|Viral Shah (UW)<br>Becky Alexander (UW)
+
|Eloise Marais (UCL)
−
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
−
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Particulate_matter_in_GEOS-Chem#Option_to_include_spatially_and_seasonally_varying_OM.2FOC|Spatially varying OM/OC]]
+
|Hlobal organic N dep from various emissions; nitrate aromatics updates
−
|Sajeev Philip (Dalhousie/NASA Ames)
+
|May Fu (SUSTech)
−
|Science
+
|Chemistry +<br>Deposition
 +
|Not delivered
 
|
 
|
−
*Slated for [[GEOS-Chem v11-02#v11-02e|v11-02e]]
 
−
*Delivered to GCST (May 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Chemistry_Issues#Correcting_ozone_from_the_height_of_the_lowest_model_level_to_the_surface|Diagnostic for correcting ozone from the height of the lowest model level to the surface]]
+
|ALK4 from biogenic vs anthro
−
|Structural
+
|Jared Brewer (UMN)
−
|Katie Travis (MIT)
+
|Chemistry
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Nov 2017)
 
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Transport updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|GEOS resolution & subgrid convection
+
|Dry deposition to F90 to improve readability
−
|Karen Yu (Harvard)
+
|Chris Holmes (FSU)
−
|Science
+
|Dry Deposition
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Oct 2017)
 
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Emission updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#Global_0.25x0.25_MEGAN_input_and_MODIS_LAI|Use global 0.25x0.25 files for MEGAN input and MODIS LAI]]
+
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
−
|Jenny Fisher (U. Wollongong)<br>Eloise Marais (U. Birmingham)<br>Dylan Millet (UMN)
+
|Joey Lam  (CUHK)<br>Amos Tai (CUHK)
−
|Bug fix/Science
+
|Dry deposition
 +
|Delivered<br>Feb 2021
 
|
 
|
−
*Delivered to GCST (Nov 2017)
+
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
  
 
|-valign="top"
 
|-valign="top"
−
|[[Implementation_of_HEMCO_in_GEOS-Chem#Features_added_in_v11-02|Update to HEMCO v2.1.003]] (requires updated MODIS LAI data)
+
|FRP-based fire emissions for eastern US at 0.2 (2019-2020)
−
|Christoph Keller (NASA GMAO)
+
|Chris Holmes (FSU)
−
|Structural
+
|Emissions
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Jul 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[http://onlinelibrary.wiley.com/doi/10.1002/2015JD023134/abstract OMI-based Volcanic emissions 2005-2012]
+
|China agriculture NH3 emissions
−
|Cui Ge (U. Iowa)<br>Jun Wang (U. Iowa)
+
|Amos Tai (CUHK)
−
|Science
+
|Emissions
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Nov 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[EDGAR_v4.3_anthropogenic_emissions|EDGAR v4.3.1 emissions]]
+
|T-dependent anthropogenic VOCs
−
|Chi Li (Dalhousie)
+
|May Fu (SUSTech)
−
|Science
+
|Emissions
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Nov 2016)
+
*Option. Requires processing existing anthropogenic VOC emissions to generate offline emissions to read in. Parameterised for China.
  
 
|-valign="top"
 
|-valign="top"
−
|EPA-derived BC/OA emissions over US (1990-2012)
+
|New source functions for transport tracers beryllium-7 and beryllium-10
−
|David Ridley (MIT)<br>Chi Li (Dalhousie)
+
|Minjie Zheng (ETH)
−
|Science
+
|Emissions
 +
|Not delivered
 
|
 
|
−
*Need to coordinate between Ridley and Li versions
+
*https://zenodo.org/records/8372652
  
 
|-valign="top"
 
|-valign="top"
−
|[[CAC_anthropogenic_emissions#Historical_emissions|Historical CAC emissions]]
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
−
|Chi Li (Dalhousie)
+
|Yang Li (Baylor U)<br>Loretta Mickley (Harvard)
−
|Science
+
|Emissions
 +
|Delivered
 
|
 
|
−
*Delivered to GCST (Nov 2016)
+
*Data involves many files- need to think about temporal frequency
  
 
|-valign="top"
 
|-valign="top"
−
|Ammonia emissions from Arctic seabirds
+
|Australian emissions
−
|Betty Croft (Dalhousie)
+
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
−
|Science
+
|Emissions
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Nov 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|Hg geogenic emissions (volcanic, rock weathering)
−
|Fabien Paulot (NOAA/GFDL)
+
|Eric Roy (MIT)
−
|Science
+
|Emissions
 +
|Not delivered
 
|
 
|
−
*Data files delivered to GCST (Jan 2016)
 
−
*Needs to be implemented via HEMCO
 
  
 
|-valign="top"
 
|-valign="top"
−
|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
+
|Hg biomass burning - FINN2.5 & GFED4
−
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Eric Roy (MIT)
−
|Science
+
|Emissions
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Nov 2017)
 
−
*Implemented in v9-01-01
 
−
*Needs to be added as a HEMCO extension
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[MASAGE_NH3_inventory|MASAGE inventory in HEMCO as default]]
+
|BCC-GC online
−
|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
+
|Lin Zhang (PKU)
−
|Science
+
|External Model
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
+
|GC-YIBS with online fire emissions
−
|Amos Tai (CUHK)
+
|Xu Yue (NUIST)<br>Hong Liao (NUIST)
−
|Science
+
|External Model
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Radon emission update
+
|GISS-GC offline (GCAP)
−
|Bo Zhang (NIA/NASA Langley)
+
|Lee Murray (Rochester)
−
|Science
+
|GCAP
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Nov 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[http://onlinelibrary.wiley.com/doi/10.1002/2016JD025767/full Global ethane emissions]
+
|Archived TCR-2 OH fields for carbon simulations
−
|Zitely Tzompa-Sosa (CSU)
+
|Kazu Miyazaki (JPL)
−
|Science
+
|Input data
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (May 2017)
+
*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.
 +
 
 +
{|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"
−
|[*Delivered to GCST (Nov 2017) Inefficient combustion emissions in Africa (DICE-Africa inventory)]
+
|Capture all trop and PBL height changes in budget diagnostics
−
|Eloise Marais (U. Birmingham)<br>Christine Wiedinmyer (NCAR)
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
−
|Science
+
|Diagnostics
 
|
 
|
−
*Delivered to GCST (Nov 2017)
+
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
  
 
|-valign="top"
 
|-valign="top"
−
|Trash burning emissions
+
|Dust non-sphericity impacts on optical properties
−
|Eloise Marais (U. Birmingham)<br>Christine Wiedinmyer (NCAR)
+
|Inderjeet Singh (WashU)
−
|Science
+
|Aerosols
 
|
 
|
−
*Delivered to GCST (Nov 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|GFAS biomass burning emissions
+
|Fixes to stratospheric aerosol settling
−
|Mat Evans (York)
+
|Connor Barker (UCL)<br>Eloise Marais (UCL)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|MEIC emissions over China (2000-2015)
+
|DMS chemistry in v14
−
|Lu Shen (Harvard)<br>Melissa Sulprizio (Harvard)
+
|Linia Tashmim (UCR)<br>Will Porter (UCR)
−
|Science
+
|Chemistry
 
|
 
|
−
*Delivered to GCST (Nov 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[http://www.globalchange.umd.edu/ceds/ CEDS global anthropogenic emissions (1950-2014)]
+
|KPP standalone + 3D Interface
−
|Lu Shen (Harvard)<br>Melissa Sulprizio (Harvard)
+
|Obin Sturm (USC)
−
|Science
+
|Chemistry
 
|
 
|
−
*Delivered to GCST (Nov 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|Anthropogenic PM2.5 dust source
+
|Load balancing in chemistry solver (GCHP)
−
|Sajeev Philip (Dalhousie)
+
|Zhouran (Jordan) Sun (WashU)
−
|Science
+
|Chemistry +<br>Performance
 
|
 
|
−
*Delivered to GCST (Mar 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[FINNv1_biomass_burning_emissions|FINN biomass burning emissions for 2015-2016]]
+
|UCX chemistry in mesosphere (GCHP/GCClassic)
−
|Barron Henderson (US EPA)
+
|Helena McDonald (MIT)
−
|Science
+
|Chemistry
 
|
 
|
−
*Delivered to GCST (Nov 2017)
 
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Deposition/surface updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|Wet scavenging in mixed-phase clouds
+
|Updated aromatic oxidation
−
|Bo Zhang (NIA/NASA Langley)
+
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
−
|Science
+
|Chemistry
 
|
 
|
−
*Delivered to GCST (Nov 2017)
 
−
*Only applied/tested for Pb
 
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|Oxidant fields from v10 for 2006-2012
+
|MCO3 uptake by cloud forming MP; leading to lower PAN
−
*3D chemical source for CO2, CO
+
|Laura Yang (Harvard)
−
*OH for tagged CO & CH4
+
|Chemistry
−
|Dylan Jones (UofT)
+
−
|Science
+
 
|
 
|
−
*Will make data files available on ftp site
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Tagged_CO_simulation#New_tagged_CO_simulation_in_v11-02_and_later|Updated Tagged CO simulation]]
+
|Implement isotope simulation for CH4 in the carbon simulation
−
|Jenny Fisher (Wollongong)
+
|Lee Murray (Rochester)
−
|Science
+
|Chemistry
 
|
 
|
−
*Delivered to GCST (Nov 2017)
+
*Will have to change negative emissions from soil to a first-order loss process
  
 
|-valign="top"
 
|-valign="top"
−
|[[CH4_simulation#Updated_CH4_simulation_in_v11-02_and_later|Updated CH4 simulation]]
+
|Active mesospheric chemistry
−
|Bram Maasakkers (Harvard)<br>Melissa Sulprizio (Harvard)
+
|Helena McDonald (MIT)<br>Seb Eastham (ICL)
−
|Science
+
|Chemistry
 
|
 
|
−
*Delivered to GCST (Oct 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|India nested-grid for GEOS-5
+
|Documentation for adding additional aerosol species
−
|Sreleekha Chaliyakunnel (U. Minnesota)
+
|Connor Barker (UCL)
−
|Science
+
|Documentation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Africa nested-grid for GEOS-FP and MERRA-2
+
|Column diagnostics
−
|Eloise Marais (U. Birmingham)
+
|Lizzie Lundgren (Harvard)<br>Viral Shah (GMAO)
−
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|West Africa nested-grid for GEOS-FP
+
|TOMAS rate diagnostics -- improve performance
−
|Mat Evans (York)<br>Eleanor Morris (York)
+
|Betty Croft (WashU/Dal)
−
|Science
+
|Diagnostics +<br>Performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
+
|Archive gamma values from heterogeneous chemistry
−
|Becky Alexander (UW)
+
|Bob Yantosca (Harvard)
−
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt aerosol alkalinity
+
|RRTMG Documentation
−
|Becky Alexander (UW)
+
|GCST
−
|Science
+
|Documentation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|AMAP/UNEP 2035 for Hg simulation
+
|Canopy Physics Model
−
|Helene Angot (MIT)
+
|Sam Silva (MIT)
−
|Science
+
|Dry Deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Arsenic simulation
+
|Dry deposition diagnostics by land cover
−
|Shiliang Wu (MT)
+
|Holly Nowell (FSU)<br>Chris Holmes (FSU)
−
|Science
+
|Dry Deposition
 
|
 
|
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Structural updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|Updated flux diagnostics
+
|Dry deposition process diagnostics
−
|Chris Holmes (Florida State)<br>[[GCST]]
+
|Holly Nowell (FSU)<br>Chris Holmes (FSU)
−
|Structural/Benchmarking
+
|Dry Deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3a: Output diagnostics in NetCDF format]]
+
|Biomass burning for TOMAS
−
|[[GCST]]
+
|Nicole June (CSU)
−
|Structural
+
|Emissions +<br>Microphysics
 
|
 
|
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
 
  
 
|-valign="top"
 
|-valign="top"
−
|FlexGrid: Use HEMCO I/O and regridding capabilities to read and regrid met fields
+
|Historic biomass burning (1750-2010)
−
|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
+
|Pengfei (Gtech)
−
|Structural
+
|Emissions
 
|
 
|
−
*Delivered to GCST (Oct 2016)
 
  
 
|-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]]
+
|Rice methane emissions
−
|Seb Eastham (Harvard)
+
|Zichong Cheng (Harvard)
−
|Science
+
|Emissions+<br>Carbon simulation
 
|
 
|
−
*Delivered to GCST (May 2017)
 
−
 
−
|}
 
−
 
−
==== Defer to v11-03 unless ready in time for v11-02 ====
 
−
 
−
{| border=1 cellspacing=0 cellpadding=5
 
−
|- bgcolor="#cccccc"
 
−
!width="400px"|Item
 
−
!width="250px"|Author(s)
 
−
!width="80px"|Type
 
−
!width="250px"|Status
 
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Mercury updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to Hg chemistry from Horowitz et al. (2017)
+
|Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.)
−
|Hannah Horowitz (U. Washington)<br>Colin Thackray (Harvard)<br>Rebecca Stern (Harvard)
+
|Katie Travis (NASA)<br>Kelvin Bates (CU Boulder)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Year 2010 ocean Hg boundary conditions from ocean model
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
−
|Hannah Horowitz (Harvard)
+
|Tia Scarpelli (Carbon Mapper)<br>Melissa Sulprizio (Harvard)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Historical products emissions from Zhang et al. (2016), should become default
+
|New prior CO2 biospheric fluxes from CMS-FLUX and GMAO
−
|Colin Thackray (Harvard)
+
|Kevin Bowman (JPL)<br>Lesley Ott (GMAO)
−
|Science
+
|Emissions
 
|
 
|
 +
*GMAO can provide high-resolution  fluxes (as high as 12 km)
  
 
|-valign="top"
 
|-valign="top"
−
|AMAP/UNEP 2035 for Hg simulation
+
|Snowpack Br2 emission
−
|Helene Angot (MIT)
+
|Chris Holmes (FSU)
−
|Science
+
|Emissions
 
|
 
|
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Deposition/surface updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|Harmonizing Henry's Law coefficients across wet and dry deposition
+
|EDGAR v8.1_toxHg emissions for 1970-2022
−
|[[GCST]]
+
|Eric Roy (MIT)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Aerosols_Working_Group#Sedimentation_of_stratospheric_aerosols|Sedimentation of stratospheric aerosols]]
+
|Improve pressure handling in GCHP advection
−
|Sebastian Eastham (Harvard)
+
|Yuanjian Zhang (WashU)<br>Seb Eastham (ICL)
−
|Science
+
|GCHP
 
|
 
|
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|VBS SOA option
+
|Add error trap for duplicate scale factors in HEMCO
−
|Rokjin Park (SNU)
+
|Bob Yantosca (Harvard)
−
|Science
+
|HEMCO
 
|
 
|
−
 
−
|-
 
−
!colspan="4" bgcolor="#CCFFFF"|Structural updates
 
  
 
|-valign="top"
 
|-valign="top"
−
|Additional modifications for [[FlexChem]], including:
+
|Integration testing: Add stretched grid
−
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, UCX, SOA, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Lizzie Lundgren (Harvard)
−
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
|Quality Assurance
−
|Mike Long (Harvard)<br>[[GCST]]
+
−
|Structural
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Benchmark of stratospheric simulation
+
|Integration testing: Add GCAP2
−
|Dylan Jones (U. Toronto)
+
|GCST
−
|Benchmarking
+
|Quality Assurance
 
|
 
|
−
*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"
−
|[[GEOS-Chem_species_units|Uniformity of units]]
+
|Integration testing: Add GCHP mass flux run
−
|[[GCST]]
+
|Lizzie Lundgren (Harvard)
−
|Structural
+
|Quality Assurance
 
|
 
|
−
*Phase 2 (unit uniformity throughout chemistry) to be implemented after Flexchem
 
−
*Phase 3 (unit uniformity in some specialty simulations) will be implemented in pieces with input from 3rd party developers
 
−
*Phase 4 (removal of area and area-dependent State_Met variables) will be ongoing
 
  
 
|-valign="top"
 
|-valign="top"
−
|ObsPack diagnostic as netCDF replacement for planeflight_mod.F
+
|Integration testing: Add run with all diagnostics turned on
−
|Andy Jacobson, NOAA/ESRL
+
|GCST
−
|Structural
+
|Quality Assurance
 
|
 
|
−
*Delivered to GCST (May 2017)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3b: Updates to eliminate differences between single and multi-segmented GEOS-Chem runs]]
+
|Integration testing: Reinstate TOMAS40
−
|[[GCST]]<br>Christoph Keller
+
|Betty Croft (Dalhousie/WashU)
−
|Bug fix/Structural
+
|Quality Assurance
 
|
 
|
−
 
−
|}
 
−
 
−
==== Not prioritized for v11-02 ====
 
−
 
−
{| border=1 cellspacing=0 cellpadding=5
 
−
|- bgcolor="#cccccc"
 
−
!width="400px"|Item
 
−
!width="250px"|Author(s)
 
−
!width="80px"|Type
 
−
!width="250px"|Status
 
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt emission from sea ice
+
|Strat-adjusted RF in GCC and GCHP
−
|Jiayue Huang (UW)
+
|Connor Barker (UCL)<br>Eloise Marais (UCL)
−
|Science
+
|Radiation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Re-evaluation of SST dependence of sea salt emissions
+
|Continue cleanup of C-preprocessor switches
−
|Jiayue Huang (UW)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#Discussion_of_LAI_Data_Sources|Update MODIS LAI fields through 2015]]
+
|Updates to Luo deposition scheme
−
|Barron Henderson (UF)
+
|Gan Luo (Albany)
−
|Science
+
|Wet Deposition
 
|
 
|
 +
*New version, keep as switch (not default)
  
 
|-valign="top"
 
|-valign="top"
−
|Lightning NOx chemistry parameterization
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
−
|Alicia Gressent (MIT)
+
|Gan Luo (Albany)<br>Fangqun Yu (Albany)
−
|Science
+
|Wet Deposition
 
|
 
|
  
 
|}
 
|}
  
−
=== Almost there (< 6 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="80px"|Type
+
!width="100px"|Model scope
−
!width="250px"|Status
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|Aromatics and dicarbonyl chemistry
+
|ML algorithms for bulk aerosol
−
|William Porter (MIT)<br>Tzung-May Fu (PKU)
+
|Arshad Nair (Albany)<br>Fangqun Yu (Albany)
−
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Diagnostic for species lifetime
+
|Heterogeneous sulfate chemistry
−
|[[GCST]]
+
|Katie Travis (NASA)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Document chemical mechanism in KPP file
+
|H2 as an active species
−
|Mat Evans (York)
+
|Seb Eastham (ICL)
−
|Structural
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Carbon bottom up fluxes: anthro, ocean, land
+
|HCN, acetonitrile as fire tracers
−
|Kevin Bowman (JPL)
+
|Kevin Bates (CU Boulder)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|GISS-GC (ICECAP/GCAP2) in standard model + benchmark
+
|Implement ethane in carbon simulation
−
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|Yuzhong Zhang (Westlake)
−
|Science
+
|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
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|CESM-GC GCHP
+
|Mesospheric source of CO
−
|Daniel Rothenberg (MIT)
+
|Dylan Jones (UofT)<br>Pam Wales (NASA GSFC)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Injection height for fire emissions
+
|Drought-stress algorithm
−
|Juliet Zhu (CSU)<br>Emily Fischer (CSU)
+
|Wei Li (Houston)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Diurnal variability for NH3
+
|Physically-based resolution correction for BVOC emissions using MEGAN
−
|Henze group
+
|May Fu (SUSTech)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|EPA NEI2011 Version EK
+
|Canadian forest fire prediction system (Canada government forecast model)
−
|Zitely Tzompa-Sosa (CSU)<br>Emily Fischer (CSU)
+
|Robin Stevens (Montreal)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|OH + NO2 rate update
+
|Furan emission factors (updates existing emissions)
−
|Barron Henderson (EPA)
+
|Lu Hu (Montana)<br>Lixu Jin (Montana)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|N2O5 hydrolysis updates
+
|Cooking emissions (not biofuel)
−
|Viral Shah (UW)
+
|Kelvin Bates (CU Boulder)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Land cover module: Harmonized biosphere-atmosphere exchange and implementing CLM or manual land cover change experiments
+
|State-specific annual emissions scaling factors (US) (1990-2021)
−
|Jeff Geddes (BU)
+
|Ishir Dutta (MIT)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|H2 chemistry in UCX
+
|GISS-GC online
−
|Chris Holmes (FSU)
+
|Lee Murray (Rochester)
−
|Science
+
|External model
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Uptake of HNO3 onto coarse-mode sea salt
+
|Hybrid MPI-OpenMP in GCHP
−
|Prasad Kasibhatla (Duke)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)<br>Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Photolysis of NITs
+
|MAPL3: Update to MAPL3 in GCHP, including replacement of ExtData.rc and HISTORY.rc with YAML files
−
|Prasad Kasibhatla (Duke)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|MAPL3: Comply with MAPL "positive" standard in GCHP diagnostic files
−
|Colin Thackray (Harvard)<br>Carey Friedman (formerly MIT)<br>Helen Amos (formerly Harvard)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
−
 
  
 
|-valign="top"
 
|-valign="top"
−
|New EDGAR sectoral inventory for Hg (1970-2012)
+
|MAPL3: Wildcards in GCHP History
−
|Amanda Giang (MIT)
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc.
+
|MAPL3: Output emissions with positive up convention in GCHP
−
|Sarah Safieddine (MIT)<br>GCST
+
|Lizzie Lundgren (Harvard)
−
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Archive GISS met fields from RCP scenarios for community
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
−
|Lee Murray (Rochester)
+
|Bob Yantosca (Harvard)
−
|Science
+
|Performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Online O3-LAI coupling in GEOS-Chem
+
|Photophysical oxidation of aldehydes
−
|Amos Tai (CUHK)
+
|Paulo Sebastianelli (Wollongong)<br>Jenny Fisher (Wollongong)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Clean up SOA diagnostics
+
|DMS updates
−
|GCST
+
|Will Porter (UCR)
−
|Structural
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Calculation consistency throughout code: surface area, HGF (via species database)
+
|Furans emission and chemistry
−
|GCST
+
|Lixu Jin (Montana)<br>Lu Hu (Montana)
−
|Structural
+
|Chemistry + <br>Emissions
 
|
 
|
−
 
−
|}
 
−
 
−
=== Over the horizon (6-12 months) ===
 
−
 
−
{| border=1 cellspacing=0 cellpadding=5
 
−
|- bgcolor="#cccccc"
 
−
!width="400px"|Item
 
−
!width="250px"|Author(s)
 
−
!width="80px"|Type
 
−
!width="250px"|Status
 
  
 
|-valign="top"
 
|-valign="top"
−
|GISS-GC GCHP
+
|Cl2 prodcution from Fe aerosol
−
|Lee Murray (Rochester)
+
|Qianjie Chen (HK Poly)<br>Becky Alexander (UW)
−
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Dynamic fire modeling/prediction
+
|VCP, cooking: tracers species added i.e., D5, ethanol affecting PAN
−
|Shiliang Wu (MNT)
+
|Kevin Bates (CU Boulder)
−
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Interannually varying ocean model BCs for Hg from ocean model
+
|bidirectional land-atmosphere exchange for Hg
−
|Colin Thackray (Harvard)
+
|Yuying Cui (MIT/Tsinghua)
−
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|PAH & PFCA simulations
+
|OH covariances for inversions
−
|Peter Ivatt (York)<br>Mat Evans (York)<br>Noelle Selin (MIT)<br>Colin Thackray (Harvard)
+
|Elise Penn (Harvard)
−
|Science
+
|Inversions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|CH4 in full chemistry simulation
+
|CESM2-GC offline
−
|Seb Eastham (Harvard)
+
|Seb Eastham (ICL)<br>Lee Murray (Rochester)
−
|Science
+
|Met fields
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Standard future land use maps (PFT, LAI) for RCP/CMIP6 simulations
+
|Re-binning of off-line sea salt and dust for TOMAS
−
|Colette Heald (MIT)<br>Loretta Mickley (Harvard)
+
|Betty Croft (Dalhousie)
−
|Science
+
|Microphysics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Archive GISS met fields from CMIP6 scenarios for community
+
|TOMAS nucleation updates
−
|Lee Murray (Rochester)
+
|Sam O'Donnell (CSU)
−
|Science
+
|Microphysics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to cold-temperature deposition
+
|Stratospheric aerosol APM
−
|Lyatt Jaegle (UW)
+
|Fangqun Yu (SUNY Albany)
−
|Science
+
|Microphysics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Simple parameterization for CO2-O3 dependence of stomatal resistance
+
|Transition from MERRA-2 to GEOS-IT for benchmarking
−
|Amos Tai (CUHK)
+
|Yuanjian Zhang (WashU)
−
|Science
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|NH3 emissions over China
+
|Automate integration testing on AWS
−
|Lin Zhang (PKU)
+
|Yidan Tang (WashU)
−
|Science
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Using GEOS-Chem within GEOS-5
+
|Integration testing: Add across end of year run
−
|Loretta Mickley (Harvard)
+
|GCST
−
|Science
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Carbon cycle outputs in xCO2, xCH4 as a diagnostic
+
|Integration testing: Add GEOS-IT
−
|Beata Bukosa (Wollongong)<br>Dylan Jones (UofT)
+
|Yuanjian Zhang (WashU)
−
|Science
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Seasonal EMEP emissions back to 1980
+
|Separate mixing, emissions, and drydep
−
|Mat Evans (York)
+
|Yuanjian Zhang (WashU)
−
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to NO2 dry deposition
+
|Intel IFX compiler
−
|Brian Boys (Dalhousie)
+
|Bob Yantosca (Harvard)
−
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|APM update and integration with most recent GEOS-Chem version
+
|CMake option to only build libraries but not executable, also passing C-preprocessor statements to turn off code
−
|Gan Luo (SUNY Albany)
+
|Bob Yantosca (Harvard)<br>Lee Murray (Rochester)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Cosmogenic tracer production
+
|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"
−
|Explore resolution-consistent dust emissions
+
|Limit allocation of State_Met to what is needed per simulation
−
*Make high-res concentrations or mass fluxes available offline, implement in met field processing
+
|Melissa Sulprizio (Harvard)
−
|David Ridley (MIT)<br>GCST<br>Nested Model WG
+
|Structural
−
|Science
+
 
|
 
|
  
−
|-valign="top"
+
|}
−
|Dust emissions at nested-grid resolutions
+
−
|Yuxuan Wang (U. Houston)<br>Jun Wang (U. Iowa)
+
−
|Science
+
−
|
+
−
*Check for overlap with resolution-consistent dust emissions above
+
  
−
|-valign="top"
+
== Longer term (12-24 months)==
−
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Update SO2 scavenging in convective updrafts for consistency]]
+
−
|Duncan Fairlie (NASA/LARC)  
+
−
|Science
+
−
|
+
  
−
|}
+
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.
−
 
+
−
=== Longer term (12-24 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="80px"|Type
+
!width="100px"|Model scope
−
!width="250px"|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)<br>Hannah Horowitz (UIUC)<br>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
 
|
 
|
  
 
|-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 (Wollongong)<br>Jenny Fisher (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)<br>Xuan Wang (CUHK)
−
|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)<br>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)<br>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"
 +
|Comparing mass fluxes in GCHP vs. traditional lat/lon wind
 +
|Yuanjian Zhang (WashU), Seb Eastham (ICL)
 +
|Transport
 +
|
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 20:44, 12 May 2017 (UTC)
+
|}

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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