GEOS-Chem model development priorities: Difference between revisions

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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/2013/index.html International GEOS-Chem Meeting (IGC6)] in May 2013 and has been continuously updated since 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 August 2013 ==
See the links below for items merged and awaiting release.


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. Other items 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 14.6.0]]'''


{| border=1 cellspacing=0 cellpadding=5
|}
|- bgcolor="#cccccc"
 
!width="400px"|Item
== Feature integration in progress ==
!width="300px"|Author(s)
 
!width="400px"|Status
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.
|-
 
|[[GEOS-5_issues#Updates_on_GEOS-5_PBL_height_.26_diurnal_variation_of_aerosols|Correction for GEOS-5 PBL heights]]
{| border=1 cellspacing=0 cellpadding=5  
|Sajeev Philip (Dalhousie)
|-bgcolor="#CCCCCC"
|Approved 16 Oct 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02a|v9-02a]]); awaiting release
!width="200px"|Feature
|-
!width="200px"|Contributor(s)
|[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]]
!width="100px"|Model scope
|Rynda Hudman (UC Berkeley)<br>Neil Moore (Dalhousie)<br>Bram Maasakkers (Eindhoven)  
!width="100px"|Ease of implementation
|Approved 29 Oct 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02b|v9-02b]]); awaiting release
!width="300px"|Notes and References
|-
 
|[[EPA/NEI05_North_American_emissions|EPA/NEI2005 Hg emissions for US]]
|-valign="top"
|Lyatt Jaegl&eacute; (U. Washington)
|New version of CEDS at 0.1 deg
|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release
|Dandan Zhang (WashU)
|-
|Emissions
|[[Mercury#Streets future Hg emissions|Streets future Hg emissions]]
|Simple
|Bess Corbitt (Harvard)
|
|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release
*[https://github.com/geoschem/geos-chem/pull/2171 geos-chem PR #2171]
|-
 
|[[Mercury#Nested-grid Hg simulation over North America|Nested-grid Hg simulation]]
|-valign="top"
|Lyatt Jaegl&eacute; (U. Washington)
|Use USTAR read from GEOS instead of calculating from U10M and V10M
|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release
|Yuanjian Zhang (WashU)
|-
|Emissions
|[[Mercury#Updated Hg.280.29 oxidation kinetics|Updated Hg(0) oxidation kinetics]]
|Simple
|Bess Corbitt (Harvard)<br>Justin Parrella (Harvard)
|
|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release
*[https://github.com/geoschem/HEMCO/pull/279 HEMCO PR #279]
|-
*NOTE: WashU will recompute mass tuning factors for each met field & resolution (GCClassic)
|[[Mercury#Capability to use GEOS-Chem Br.2FBrO fields in Hg simulation|Capability to use GEOS-Chem Br/BrO fields in Hg simulation]]
 
|Bess Corbitt (Harvard)<br>Justin Parrella (Harvard)
|-valign="top"
|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release
|Carbon simulation fixes in GCClassic and GCHP
|-
|Melissa Sulprizio (Harvard)<br>Lizzie Lundgren (Harvard)
|[[POPs simulation|POPs simulation: Polycyclic aromatic hydrocarbons]]
|Carbon simulation
|Carey Friedman (MIT)
|Medium
|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release
|
|-
*[https://github.com/geoschem/GCHP/issues/440 GCHP issue #440]
|[[Updating_standard_chemistry_with_JPL_10-6|Inorganic chemistry updates]]
*[https://github.com/geoschem/geos-chem/issues/2463 geos-chem issue #2463]
|Mat Evans (York)
*[https://github.com/geoschem/geos-chem/pull/2510 geos-chem PR #2510]
|Approved 07 Feb 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02f|v9-02f]]); awaiting release
 
|-
|-valign="top"
|[[Methyl peroxy nitrate chemistry|Methyl peroxy nitrate (MPN) chemistry]]
|Investigate potential performance gains of replacing the KPP Rosenbrock solver with the LSODE solver
|Ellie Browne (UC Berkeley)
|Bob Yantosca (Harvard)
|Approved 07 Feb 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02f|v9-02f]]); awaiting release
|Chemistry
|-
|Medium
|[[New_isoprene_scheme#Update_One_-_RO2.2BHO2_Reaction_Rate|Fix RO2+HO2 rate constant]]
|
|Fabien Paulot (Harvard)
*[https://github.com/geoschem/geos-chem/pull/2482 geos-chem PR #2482]
|Approved 22 Mar 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02g|v9-02g]]); awaiting release
*[https://github.com/geoschem/geos-chem/pull/2483 geos-chem PR #2483]
|-
 
|[[ChemTelecon20111202|Improvements to isoprene chemistry, standardization of Paulot Scheme]]
|-valign="top"
|Fabien Paulot (Harvard)<br>Eloise Marais (Harvard)<br>Jingqiu Mao (NOAA/GFDL)<br>Mat Evans (York)
|Fix obspack - not working in 14.4.0
|Approved 22 Mar 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02g|v9-02g]]); awaiting release
|Bob Yantosca (Harvard)
|-
|Diagnostics
|[[NOx-Ox-HC-aerosol#Removal of NOx and Ox partitioning|Removal of NOx-Ox partitioning]]
|Medium
|[[GEOS-Chem Support Team]]
|
|Approved 15 May 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02h|v9-02h]]); awaiting release
*[https://github.com/geoschem/geos-chem/issues/2328 geos-chem issue #2328]
|-
 
|[[ChemTelecon20111202|Inhibition of N2O5 hydrolysis by aerosol nitrate]]
|-valign="top"
|Lin Zhang (Peking University)
|Make GC-Classic bit-for-bit reproducible upon restart<br>(part 1 of 2)
|Approved 17 May 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02i|v9-02i]]); awaiting release
|Lizzie Lundgren (Harvard)
|-
|GC-Classic
|[[NOx-Ox-HC-aerosol#Improved HO2 uptake|Improved HO2 uptake by aerosol]]
|Medium
|Jingqiu Mao (NOAA/GFDL)
|
|Approved 28 May 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02j|v9-02j]]); awaiting release
*[https://github.com/geoschem/geos-chem/pull/2521 geos-chem PR #2521]
|-
 
|[[Grid-Independent_GEOS-Chem:_Chemistry_Component|Grid-independent GEOS-Chem: Chemistry]]
|-valign="top"
|[[GEOS-Chem Support Team]]<br>GMAO
|Capture all trop and PBL height changes in budget diagnostics
|Approved 07 Jun 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02k|v9-02k]]); awaiting release
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
|-
|Diagnostics
|[[TOMAS_aerosol_microphysics#Update_April_2013|Inline the TOMAS aerosol microphysics code into standard code]]
|Medium
|Sal Farina (CSU)
|
|Approved 07 Jun 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02k|v9-02k]]); awaiting release
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
|-
 
|[[Anthropogenic_emissions#CAC|Updated Canadian NH3 inventory]]
|-valign="top"
|Wai-Ho Lo (Dalhousie)
|Derive convective precipitation flux if using FP/IT generated with Grell-Freitas
|Approved 26 Jun 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02l|v9-02l]]); awaiting release
|Yuanjian Zhang (WashU)<br>Viral Shah (GMAO)<br>Lizzie Lundgren (Harvard)
|-
|Convection
|[[EPA/NEI05 North American emissions#Updated NH3 seasonal scaling factors in v9-02|Updated NH3 seasonal scaling factors over the US]]
|Medium
|Lin Zhang (Peking University)
|
|Approved 26 Jun 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02l|v9-02l]]); awaiting release
*[https://github.com/geoschem/geos-chem/issues/2469 geos-chem Issue #2469]
|-
*[https://github.com/geoschem/geos-chem/pull/2523 geos-chem PR #2523]
|[[Historical_and_Future_Emissions#RCP_future_emission_scenarios |RCP emission scenarios]]
 
|Chris Holmes (UC Irvine)
|-valign="top"
|Approved 30 Jul 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02m|v9-02m]]); awaiting release
|GCHP mass flux fixes
|-
|Yuanjian Zhang (WashU)
|[[CH4 simulation#Update CH4 emissions to EDGAR v4.2|EDGAR v4.2 emissions for CH4 simulation]]
|GCHP
|Kevin Wecht (Harvard)
|Simple
||Approved 30 Jul 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02m|v9-02m]]); awaiting release
|
|-
*[https://github.com/geoschem/GCHP/pull/456 GCHP PR 456]
|[[Scale factors for anthropogenic emissions|Update anthropogenic scale factors through 2010]]
|Aaron van Donkelaar (Dalhousie)
||Approved 30 Jul 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02m|v9-02m]]); awaiting release
|-
|[[Aircraft emissions#MIT aviation emissions inventory|AEIC aircraft emissions inventory]]
|Sebastian D. Eastham(MIT)<br>Steven Barrett (MIT)
|Approved 12 Aug 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02n|v9-02n]]); awaiting release
|-
|[[Secondary organic aerosols#SOA simulation with semi-volatile POA|Expanded SOA]]
|Havala Pye (EPA/ORD)
|Approved 03 Sep 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02o|v9-02o]]); awaiting release
|-
|[[Sulfate aerosols#Cloud water pH for sulfate formation|Cloud water pH for sulfate formation]]
|Becky Alexander (U. Washington)
|Approved 13 Sep 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02p|v9-02p]]); awaiting release
|-
|[[Aerosol optical properties#Better representation of OC growth with RH and correction to sulfate optics|Update jv_spec.dat with better representation of OC growth with RH and correction to sulfate optics]]
|David Ridley (MIT)<br>Randall Martin (Dalhousie)
|Approved 17 Sep 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02q|v9-02q]]); awaiting release
|-
|[[Mineral_dust_aerosols#Surface_chemistry_on_dust|Acid uptake on dust aerosols]]
|T. Duncan Fairlie (NASA/LARC)
|To be included in [[GEOS-Chem v9-02|v9-02]]
|-
|Global simulations with [[GEOS-FP|GEOS-FP met data product]] from GMAO
|[[GEOS-Chem Support Team]]
|To be included in [[GEOS-Chem v9-02|v9-02]]


*'''''NOTE:''''' The GEOS-5 "FP" product (aka GEOS-5.11.0) is what we will use for the 0.25&deg; x 0.3125&deg; nested simulations.  To run the nested simulations (the 2 items listed below), we also must be able to run the global simulations with this met data product in order to save out transport boundary conditons.
|-valign="top"
*Much of this development work has already been done in advance of the SEAC4RS aircraft mission.
|HEMCO log print updates
|-
|Lizzie Lundgren (Harvard)
|Nested-grid model at 0.25&deg; x 0.3125&deg; resolution
|ESMs
|Yuxuan Wang (Tsinghua)
|Medium
|To be included in [[GEOS-Chem v9-02|v9-02]]
|
|-
*[https://github.com/geoschem/HEMCO/pull/296 HEMCO PR 296]
|High-resolution emissions for above nested-grid model
 
|Yuxuan Wang (Tsinghua)
|-valign="top"
|To be included in [[GEOS-Chem v9-02|v9-02]]
|Fix yaml reader bug with certain compilers
|-
|Lizzie Lundgren (Harvard)
|[[EDGAR anthropogenic emissions|Update to EDGAR 4.2 anthropogenic emissions]]
|Build
|Meng Li and Qiang Zhang (Tsinghua)<br>Sajeev Philip (Dalhousie)
|Simple
|To be included in [[GEOS-Chem v9-02|v9-02]]
|
|-
*[https://github.com/geoschem/geos-chem/pull/2486 geos-chem PR 2486]
|Improve temporal resolution of anthropogenic CO2 sources
|Ray Nassar (Environment Canada)
|To be included in [[GEOS-Chem v9-02|v9-02]]
|-
|Replace CASA CO2 biosphere climatology with year-specific fluxes
|Ray Nassar (Environment Canada)<br>Dylan Jones (U. Toronto)
|To be included in [[GEOS-Chem v9-02|v9-02]]


'''''Ray Nassar wrote:'''''
:SiB Fluxes are available to replace the old CASA fluxes, courtesy of Janina Messerschmidt et al. New CASA fluxes would also be good, such that the user can select options in the input.geos file. 
|}
|}


--[[User:Melissa Payer|Melissa Sulprizio]] 16:38, 13 September 2013 (EDT)
== Prioritized and in the queue ==
 
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.


=== Ready to go in ===
{| border=1 cellspacing=0 cellpadding=5
|-bgcolor="#CCCCCC"
!width="200px"|Feature
!width="200px"|Contributor(s)
!width="100px"|Model scope
!width="100px"|Ease of implementation
!width="100px"|Delivery status
!width="300px"|Notes and References


{| border=1 cellspacing=0 cellpadding=5
|-valign="top"
|- bgcolor="#cccccc"
|Retire CH4, CO2, tagCO simulations in favor of carbon simulation
!width="400px"|Item
|Melissa Sulprizio (Harvard)
!width="300px"|Author(s)
|Carbon gases
!width="400px"|Status
|Simple
|-
|
|[[MEGAN_biogenic_emissions#Update_to_MEGAN2.1_.28Guenther_et_al..2C_2012.29|Update to MEGAN2.1]]
|
|Dylan Millet (U. Minnesota)
*[https://github.com/geoschem/geos-chem/issues/2387 geos-chem issue #2387]
 
|-valign="top"
|Correct the issue that injection height has been artificially decreased by HEMCO
|Lixu Jun (Montana)
|Emissions
|Simple
|Delivered<br>June 2024
|
*[https://github.com/geoschem/geos-chem/issues/2330 geos-chem issue #2330]
*[https://github.com/geoschem/geos-chem/pull/2358 geos-chem PR #2358]
 
|-valign="top"
|Capability to run GCClassic at 0.125x0.15625 resolution
|Melissa Sulprizio (Harvard)<br>Xiaolin Wang (Harvard)
|Nested grid
|Simple
|Delivered
|
*[https://github.com/geoschem/geos-chem/pull/1980 geos-chem PR #1980]
*[https://github.com/geoschem/HEMCO/pull/290 HEMCO PR #290]
 
|-valign="top"
|Strat-adjusted RF in GCC and GCHP
|Connor Barker (UCL)<br>Eloise Marais (UCL)
|Radiation
|Simple
|Delivered
|
|
|-
*[https://github.com/geoschem/geos-chem/pull/2525 geos-chem PR #2525]
|UNEP 2010 anthropogenic Hg emissions
 
|Shaojie Song (MIT)
|-valign="top"
|Archived TCR-2 OH fields for carbon simulations
|Kazu Miyazaki (JPL)<br>Melissa Sulprizio (Harvard)
|Input data
|Simple
|Data delivered<br>Oct 2024
|
|
|-
*This will be the default OH, but users will have the option of selecting other OH fields
|Historical anthropogenic atmospheric emissions of Hg
*[https://github.com/geoschem/geos-chem/issues/2537 geos-chem issue #2537]
|Bess Corbitt (Harvard)
 
|-valign="top"
|Dust non-sphericity impacts on optical properties
|Inderjeet Singh (WashU)
|Aerosols
|Medium
|Not yet delivered
|
|
|-
 
|Subsurface ocean Hg concentration update
|}
|Anne Soerensen (Harvard)
 
== 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"
|Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol
|Camilo Serrano (McGill)<br>Andreas Zuend (McGill)
|Aerosols
|Not delivered
|
|
|-
*[https://github.com/geoschem/geos-chem/issues/2392 geos-chem issue #2392]
|NEI 2008 Hg emission inventory
 
|Yanxu Zhang (Harvard)
|-valign="top"
|Update UCX to include gravitational settling of aerosol species beyond just BCPI
|Conor Barker (UCL)<br>Eloise Marais (UCL)
|Aerosols
|Not delivered
|
|
|-
 
|[[EPA/NEI08 North American emissions|NEI 2008 emissions with hourly resolution]]
|-valign="top"
|Katie Travis (Harvard)
|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)
|CO2 direct effect on isoprene emissions
 
|Amos Tai (MIT)
|-valign="top"
|Global organic N dep from various emissions; nitrate aromatics updates
|May Fu (SUSTech)
|Chemistry +<br>Deposition
|Not delivered
|
|
|-
 
|[[PAN|PAN / Organics]]
|-valign="top"
|Emily Fischer (Harvard)
|Dry deposition to F90 to improve readability
|Chris Holmes (FSU)
|Dry Deposition
|Not delivered
|
|
|-
*[https://github.com/geoschem/geos-chem/issues/2389 geos-chem issue #2389]
|Arctic Hg cycling
 
|Jenny Fisher (Wollongong)
|-valign="top"
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
|Joey Lam  (CUHK)<br>Amos Tai (CUHK)
|Dry deposition
|Delivered<br>Feb 2021
|
|
|-
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
|Criegee intermediate
 
|Dylan Millet (U. Minnesota)
|-valign="top"
|FRP-based fire emissions for eastern US at 0.2 (2019-2020)
|Chris Holmes (FSU)
|Emissions
|Not delivered
|
|
|-
*[https://github.com/geoschem/geos-chem/issues/2388 geos-chem issue #2388]
|VBS SOA option
 
|Rokjin Park (Seoul Nat'l Univ.)
|-valign="top"
|China agriculture NH3 emissions
|Amos Tai (CUHK)
|Emissions
|Not delivered
|
|
|-
 
|Tagged sulfate and nitrate simulation
|-valign="top"
|Becky Alexander (U. Washington)
|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.
|RRTMG radiative transfer code
 
|Fangqun Yu (SUNY Albany)
|-valign="top"
|New source functions for transport tracers beryllium-7 and beryllium-10
|Minjie Zheng (ETH)
|Emissions
|Delivered<br>June 2024
|
|
|-
*Available at https://zenodo.org/records/8372652
|[http://acmg.seas.harvard.edu/publications/murray.2013.jgr.pdf Interannual lightning]
|Lee Murray (Harvard)
|Available for GEOS-4, but still needs to be implemented in GEOS-5
|}


--[[User:Melissa Payer|Melissa Payer]] 09:33, 5 June 2013 (EDT)
|-valign="top"
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
|Yang Li (Baylor U)<br>Loretta Mickley (Harvard)
|Emissions
|Delivered
|
*Data involves many files- need to think about temporal frequency


=== Almost there (< 6 months) ===
|-valign="top"
|Australian Hg emissions (2000-2019)
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
|Emissions
|Not delivered
|
*[https://pubs.rsc.org/en/content/articlelanding/2022/em/d2em00019a MacFarlane et al. (2024)]
*Includes emissions from black and brown coal power plants, various metal production/processing sources (Aluminium, gold, copper, lead, etc), waste products, cement production, oil refining and petroleum, chlor alkali plants, and cremation


{| border=1 cellspacing=0 cellpadding=5
|-valign="top"
|- bgcolor="#cccccc"
|Hg geogenic emissions (volcanic, rock weathering)
!width="400px"|Item
|Eric Roy (MIT)
!width="300px"|Author(s)
|Emissions
!width="400px"|Status
|Not delivered
|-
|[[Boundary_layer_mixing#Online_PBL_height_calculation_in_GEOS-Chem|Online PBL height calculation]]
|Sajeev Philip (Dalhousie)<br>Erica McGrath-Spangler(NASA GSFC)
|
|
|-
*[https://github.com/geoschem/geos-chem/issues/2361 geos-chem #2361]
|Coupling to 3D ocean: OFFTRACK
*[https://gmd.copernicus.org/preprints/gmd-2024-65/ Dastoor et al. (2024)]
|Yanxu Zhang (Harvard)
 
|-valign="top"
|Hg biomass burning - FINN2.5 & GFED4
|Eric Roy (MIT)
|Emissions
|Not delivered
|
|
|-
*[https://github.com/geoschem/geos-chem/issues/2361 geos-chem #2361]
|Dry deposition updates for Hg simulation
*[https://gmd.copernicus.org/preprints/gmd-2024-65/ Dastoor et al. (2024)]
|Bess Corbitt (Harvard)
 
|-valign="top"
|BCC-GC online
|Lin Zhang (PKU)
|External Model
|Not delivered
|
|
|-
 
|New Hg soil emissions standard from offline GTMM
|-valign="top"
|Bess Corbitt (Harvard)
|GC-YIBS with online fire emissions
|Xu Yue (NUIST)<br>Hong Liao (NUIST)
|External Model
|Not delivered
|
|
|-
 
|Pre- and online processing of emissions
|-valign="top"
|Qiang Zhang (Tsinghua)<br>Christoph Keller (Harvard)
|GISS-GC offline (GCAP)
|Lee Murray (Rochester)
|GCAP
|Not delivered
|
|
|-
 
|MASAGE NH3 emissions
|}
|Fabien Paulot (Harvard)
 
== 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"
|Fixes to stratospheric aerosol settling
|Connor Barker (UCL)<br>Eloise Marais (UCL)
|Aerosols
|
|
|-
 
|Benchmark procedure for nested model
|-valign="top"
|[[Nested Model Working Group]]
|DMS chemistry in v14
|Linia Tashmim (UCR)<br>Will Porter (UCR)
|Chemistry
|
|
|-
 
|Online GCRT
|-valign="top"
|David Ridley (MIT)<br>Colette Heald (MIT)
|KPP standalone + 3D Interface
|Obin Sturm (USC)
|Chemistry
|
|
|-
 
|TOMAS parallelization
|-valign="top"
|Sal Farina (CSU)<br>Jeff Pierce (CSU)
|NO2+OH+H2O kinetics
|Mat Evans (York)
|Chemistry
|
|
|-
 
|Reduced TOMAS (12/15 bins)
|-valign="top"
|Sal Farina (CSU)<br>Jeff Pierce (CSU)
|LSODES solver in KPP for faster kinetics
|Haipeng Lin (Harvard)
|Chemistry
|
|
|-
 
|APM v2, synch with v9-02
|-valign="top"
|Fangqun Yu (SUNY Albany)
|Load balancing in chemistry solver (GCHP)
|Zhouran Sun (WashU)
|Chemistry +<br>Performance
|
|
|-
 
|Retain native resolution 2D surface winds
|-valign="top"
|David Ridley (MIT)<br>[[GEOS-Chem Support Team]]
|Active chemistry in mesosphere for both GCHP and GCClassic
|Helena McDonald (MIT)<br>Sebastian Eastham (ICL)
|Chemistry
|
|
|-
 
|FLEXCHEM
|-valign="top"
|Mat Evans (York)<br>Mike Long (Harvard)
|Updated aromatic oxidation
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
|Chemistry
|
|
|-
 
|Develop new coding standards
|-valign="top"
|[[GEOS-Chem Support Team]]
|MCO3 uptake by cloud forming MP; leading to lower PAN
|Laura Yang (Harvard)
|Chemistry
|
|
|-
 
|Unit testing
|-valign="top"
|[[GEOS-Chem Support Team]]
|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
|[[Grid-independent GEOS-Chem]]: Dry deposition
 
|[[GEOS-Chem Support Team]]<br>GMAO
|-valign="top"
|Documentation for adding additional aerosol species
|Connor Barker (UCL)
|Documentation
|
|
|-
 
|[[Grid-Independent GEOS-Chem: Emissions Component|Grid-independent GEOS-Chem: Emissions]]
|-valign="top"
|Christoph Keller (Harvard)<br>[[GEOS-Chem Support Team]]<br>GMAO
|Column diagnostics
|Lizzie Lundgren (Harvard)<br>Viral Shah (GMAO)
|Diagnostics
|
|
|-
 
|[[Grid-independent GEOS-Chem]]: NetCDF I/O
|-valign="top"
|[[GEOS-Chem Support Team]]
|TOMAS rate diagnostics -- improve performance
|Betty Croft (WashU/Dal)
|Diagnostics +<br>Performance
|
|
|-
 
|CMS CO2 ocean fluxes
|-valign="top"
|Kevin Bowman (JPL)
|Archive gamma values from heterogeneous chemistry
|Bob Yantosca (Harvard)
|Diagnostics
|
|
|-
 
|Dynamic subsurface ocean
|-valign="top"
|Helen Amos (Harvard)
|RRTMG Documentation
|GCST
|Documentation
|
|
|-
 
|Updates to PAH code
|-valign="top"
|Carey Friedman (MIT)<br>Helen Amos (Harvard)
|Canopy Physics Model
|Sam Silva (MIT)
|Dry Deposition
|
|
|-
*Available at https://zenodo.org/records/3614062#.XzvrH5NKjOR (GEOS-Chem 12.3.0)
|Fast-JX
 
|Sebastian Eastham (MIT)<br>Jingqiu Mao (NOAA/GFDL)
|-valign="top"
|Dry deposition diagnostics by land cover
|Holly Nowell (FSU)<br>Chris Holmes (FSU)
|Dry Deposition
|
|
|-
 
|Fix for CH4 concentrations after 2008
|-valign="top"
|Lee Murray (Harvard)
|Dry deposition process diagnostics
|Holly Nowell (FSU)<br>Chris Holmes (FSU)
|Dry Deposition
|
|
|-
 
|Two-way nested grid simulation
|-valign="top"
|Jintai Lin (Peking)
|Biomass burning for TOMAS
|Nicole June (CSU)
|Emissions +<br>Microphysics
|
|
|-
 
|Sub-domain within the nested-grid domain
|-valign="top"
|Yuxuan Wang (Tsinghua)<br>Jintai Lin (Peking)
|Historic biomass burning (1750-2010)
|Pengfei Liu (Georgia Tech)
|Emissions
|
|
|-
 
|Offline satellite simulator tool
|-valign="top"
|[[Nested Model Working Group]]
|Rice methane emissions
|Zichong Cheng (Harvard)
|Emissions+<br>Carbon simulation
|
|
|-
 
|Metal catalyzed oxidation of SO2
|-valign="top"
|Becky Alexander (U. Washington)
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
|Tia Scarpelli (Carbon Mapper)<br>Melissa Sulprizio (Harvard)
|Emissions
|
|
|-
 
|Sulfate production on aerosol haze
|-valign="top"
|Yuxuan Wang (Tsinghua)<br>Rokjin Park (Seoul Nat'l Univ.)
|New prior CO2 biospheric fluxes from CMS-FLUX and GMAO
|Kevin Bowman (JPL)<br>Lesley Ott (GMAO)
|Emissions
|
|
|-
*GMAO can provide high-resolution  fluxes (as high as 12 km)
|Diurnal variation of NH3 emissions
 
|Daven Henze (UC Boulder)
|-valign="top"
|Snowpack Br2 emission
|Chris Holmes (FSU)
|Emissions
|
|
|-
 
|Impaction scavenging for hydrophobic BC
|-valign="top"
|Qiaoqiao Wang (Harvard)
|EDGAR v8.1_toxHg emissions for 1970-2022
|Eric Roy (MIT)
|Emissions
|
|
|-
 
|Homogeneous IN removal
|-valign="top"
|Qiaoqiao Wang (Harvard)
|Improve pressure handling in GCHP advection
|Yuanjian Zhang (WashU)<br>Seb Eastham (ICL)
|GCHP
|
|
|-
 
|Time-varying Arctic parameterizations
|-valign="top"
|Jenny Fisher (Wollongong)
|Add error trap for duplicate scale factors in HEMCO
|Bob Yantosca (Harvard)
|HEMCO
|
|
|-
 
|Future US emissions inventories of Hg
|-valign="top"
|Amanda Giang (MIT)
|Integration testing: Add stretched grid
|Lizzie Lundgren (Harvard)
|Quality Assurance
|
|
|-
 
|Coastal inputs of Hg: Rivers and anthropogenic point sources
|-valign="top"
|Helen Amos (Harvard)
|Integration testing: Add GCHP mass flux run
|Lizzie Lundgren (Harvard)
|Quality Assurance
|
|
|-
 
|Complete revamp of [[Mercury#GTMM|GTMM]]
|-valign="top"
|Bess Corbitt (Harvard)
|Integration testing: Reinstate TOMAS40
|Betty Croft (Dalhousie/WashU)
|Quality Assurance
|
|
|-
 
|Dust PDF for global simulations
|-valign="top"
|David Ridley (MIT)
|Continue cleanup of C-preprocessor switches
|Lizzie Lundgren (Harvard)
|Structural
|
|
|-
 
|Stratospheric aerosols
|-valign="top"
|Sebastian Eastham (MIT)
|Updates to Luo deposition scheme
|Gan Luo (Albany)
|Wet Deposition
|
|
|-
*New version, keep as switch (not default)
|Benchmark for aerosol deposition
 
|[[Aerosols overview: projects and developments|Aerosols Working Group]]
|-valign="top"
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
|Gan Luo (Albany)<br>Fangqun Yu (Albany)
|Wet Deposition
|
|
|}
|}


--[[User:Melissa Payer|Melissa Payer]] 09:29, 6 June 2013 (EDT)
== 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="300px"|Author(s)
!width="200px"|Contributor(s)
!width="400px"|Status
!width="100px"|Model scope
|-
!width="420px"|Notes and References
|Updates to redox chemistry for Hg simulation
 
|Bess Corbitt (Harvard)
|-valign="top"
|ML algorithms for bulk aerosol
|Arshad Nair (Albany)<br>Fangqun Yu (Albany)
|Aerosols
|
 
|-valign="top"
|Heterogeneous sulfate chemistry
|Katie Travis (NASA)
|Chemistry
|
 
|-valign="top"
|H2 as an active species
|Seb Eastham (ICL)
|Chemistry
|
|
|-
 
|High-resolution regional emissions
|-valign="top"
|[[Nested Model Working Group]]
|HCN, acetonitrile as fire tracers
|Kevin Bates (CU Boulder)
|Chemistry
|
|
|-
 
|Flexible diagnostic package
|-valign="top"
|[[GEOS-Chem Support Team]]
|Implement ethane in carbon simulation
|Yuzhong Zhang (Westlake)
|Chemistry
|
|
|-
 
|[[Grid-independent GEOS-Chem]]: Convection
|-valign="top"
|TBD
|Mesospheric source of CO
|[[GEOS-Chem Support Team|GCST]] needs help from community
|Dylan Jones (UofT)<br>Pam Wales (NASA GSFC)
|-
|Emissions
|[[Grid-independent GEOS-Chem]]: Wet scavenging
|TBD
|[[GEOS-Chem Support Team|GCST]] needs help from community
|-
|[[Grid-independent GEOS-Chem]]: PBL mixing
|Sajeev Philip (Dalhousie)<br>Christoph Keller (Harvard)<br>GMAO
|
|
|-
 
|[[Grid-independent GEOS-Chem]]: Transport
|-valign="top"
|TBD
|Drought-stress algorithm
|[[GEOS-Chem Support Team|GCST]] needs help from community
|Wei Li (Houston)
|-
|Emissions
|[[Grid-independent GEOS-Chem]]: Packaging ESMF/MAPL
|
|[[GEOS-Chem Support Team]]<br>GMAO
 
|-valign="top"
|Physically-based resolution correction for BVOC emissions using MEGAN
|May Fu (SUSTech)
|Emissions
|
 
|-valign="top"
|Canadian forest fire prediction system (Canada government forecast model)
|Robin Stevens (Montreal)
|Emissions
|
 
|-valign="top"
|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)
|External model
|
 
|-valign="top"
|Hybrid MPI-OpenMP in GCHP
|Seb Eastham (MIT)<br>Killian Murphy (York)<br>Lizzie Lundgren (Harvard)
|GCHP
|
 
|-valign="top"
|MAPL3: Update to MAPL3 in GCHP, including replacement of ExtData.rc and HISTORY.rc with YAML files
|Lizzie Lundgren (Harvard)
|GCHP
|
 
|-valign="top"
|MAPL3: Comply with MAPL "positive" standard in GCHP diagnostic files
|Lizzie Lundgren (Harvard)
|GCHP
|
 
|-valign="top"
|MAPL3: Wildcards in GCHP History
|Lizzie Lundgren (Harvard)
|GCHP
|
 
|-valign="top"
|MAPL3: Output emissions with positive up convention in GCHP
|Lizzie Lundgren (Harvard)
|GCHP
|
 
|-valign="top"
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
|Bob Yantosca (Harvard)
|Performance
|
 
|-valign="top"
|Photophysical oxidation of aldehydes
|Paulo Sebastianelli (Wollongong)<br>Jenny Fisher (Wollongong)
|Chemistry
|
 
|-valign="top"
|DMS updates
|Will Porter (UCR)
|Chemistry
|
 
|-valign="top"
|Furans emission and chemistry
|Lixu Jin (Montana)<br>Lu Hu (Montana)
|Chemistry + <br>Emissions
|
 
|-valign="top"
|Cl2 prodcution from Fe aerosol
|Qianjie Chen (HK Poly)<br>Becky Alexander (UW)
|Chemistry
|
 
|-valign="top"
|VCP emissions
|Kevin Bates (CU Boulder)
|Emissions
|
 
|-valign="top"
|Bidirectional land-atmosphere exchange for Hg
|Yuying Cui (MIT/Tsinghua)
|Hg simulation
|
 
|-valign="top"
|OH covariances for inversions
|Elise Penn (Harvard)
|Inversions
|
 
|-valign="top"
|CESM2-GC offline
|Seb Eastham (ICL)<br>Lee Murray (Rochester)
|Met fields
|
 
|-valign="top"
|Re-binning of off-line sea salt and dust for TOMAS
|Betty Croft (Dalhousie)
|Microphysics
|
 
|-valign="top"
|TOMAS nucleation updates
|Sam O'Donnell (CSU)
|Microphysics
|
|
|-
 
|3D VOC source for tagged CO simulation and enhanced tagging of secondary CO
|-valign="top"
|Jenny Fisher (Wollongong)
|Stratospheric aerosol APM
|Fangqun Yu (SUNY Albany)
|Microphysics
|
|
|-
 
|Satellite diagnostic for XCO2
|-valign="top"
|Andrew Schuh (CSU)
|Transition from MERRA-2 to GEOS-IT for benchmarking
|Yuanjian Zhang (WashU)
|Quality Assurance
|
|
|-
 
|Dynamic precision
|-valign="top"
|[[GEOS-Chem Support Team]]
|Automate integration testing on AWS
|Yidan Tang (WashU)
|Quality Assurance
|
|
|-
 
|Profiling GEOS-Chem
|-valign="top"
|TBD
|Integration testing: Add across end of year run
|GCST
|Quality Assurance
|
|
|-
 
|Methylmercury in the surface ocean
|-valign="top"
|Anne Soerensen (Harvard)
|Integration testing: Add GEOS-IT
|Yuanjian Zhang (WashU)
|Quality Assurance
|
|
|-
 
|Primary marine emissions of OA
|-valign="top"
|Brett Gantt (NCSU)
|Separate mixing, emissions, and drydep
|Yuanjian Zhang (WashU)
|Structural
|
|
|-
 
|Recommendations for optimal timesteps
|-valign="top"
|Sajeev Philip (Dalhousie)
|Intel IFX compiler
|Bob Yantosca (Harvard)
|Structural
|
|
|-
 
|DMS oxidation scheme updating (DMSO, oxidation by BrO)
|-valign="top"
|Tom Breider (Harvard)<br>Becky Alexander (U. Washington)
|CMake option to only build libraries but not executable, also passing C-preprocessor statements to turn off code
|Bob Yantosca (Harvard)<br>Lee Murray (Rochester)
|Structural
|
|
|-
 
|More options for terrestrial CO2 fluxes
|-valign="top"
|Kevin Bowman (JPL)
|Remove differences introduced when breaking up GC-Classic runs in time; and flexible precision in HEMCO
|Lizzie Lundgren (Harvard)
|Structural
|
|
|-
 
|[[Biomass_burning_emissions#FINNv1|FINN biomass burning emissions]]
|-valign="top"
|Jenny Fisher (Wollongong)<br>Min Huang (JPL)
|Limit allocation of State_Met to what is needed per simulation
|Melissa Sulprizio (Harvard)
|Structural
|
|
|-
 
|Merge organics from specialized simulations into the mainline code
|-valign="top"
|Dylan Millet (U. Minnesota)
|Using 3-D precipitation fluxes to calculate precipitation formation and re-evaporation in scavenging (to be consistent with GEOS/GOCART & ground precipitation)
|Gan Luo (Albany)<br>Hongyu Liu (NIA/LaRC)<br>Bo Zhang (NIA/LaRC)
|Wet deposition
|
|
|}
|}


--[[User:Melissa Payer|Melissa Payer]] 16:41, 14 May 2013 (EDT)
== Longer term (12-24 months)==


=== Longer term (12-24 months)===
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.


{| border=1 cellspacing=0 cellpadding=5
{| border=1 cellspacing=0 cellpadding=5
|- bgcolor="#cccccc"
|- bgcolor="#cccccc"
!width="400px"|Item
!width="200px"|Feature
!width="300px"|Author(s)
!width="200px"|Contributor(s)
!width="400px"|Status
!width="100px"|Model scope
|-
!width="420px"|Notes and References
|Coupling to 3D ocean: MIT ocean GCM
 
|Yanxu Zhang (Harvard)
|-valign="top"
|Modal aerosol model (MAM7) in GCHP
|Shreya Sharma (MIT)
|Aerosols
|
|
|-
 
|Python interface
|-valign="top"
|Beno&icirc;t Bovy (U. Li&egrave;ge-Belgium)
|Online OCIM ocean biogeochemistry
|Lee Murray (Rochester)<br>Hannah Horowitz (UIUC)<br>Chris Holmes (FSU)
|Chemistry
|
|
|-
 
|Uniformity of units
|-valign="top"
|[[GEOS-Chem Support Team]]
|Perchlorate chemistry
|Yuk Chun Chan (UW)
|Chemistry
|
|
|-
 
|Historical inventory of Hg in products and processes
|-valign="top"
|Hannah Horowitz (Harvard)
|Non-stomatal dry deposition (2-layer canopy model)
|Michael Vermeuel (Purdue)
|Dry Deposition
|
|
|-
 
|Better link/coupling to ocean processes
|-valign="top"
|[[Chemistry-Climate Working Group]]
|Continental chloride particle emissions (salty dust, road salt)
|Jessica Haskins (Utah)
|Emissions
|
|
|-
 
|Better coupling to biogeochemical cycles
|-valign="top"
|[[Chemistry-Climate Working Group]]
|Multivolatility emission inventory to address gaps in EDGAR/HTAP etc.
|Ruochong (Tshingua)
|Emissions
|
|
|-
 
|Chemistry feedbacks to vegetation ecosystem
|-valign="top"
|Amos Tai (MIT)
|Lightning NOx production rates
|Bex Horner (UCL)
|Emissions
|
|
|-
 
|Stratospheric chemistry
|-valign="top"
|Sebastian Eastham (MIT)
|HFO and CF3CHO
|Beth Killen (Wollongong)<br>Jenny Fisher (Wollongong)
|Chemistry
|
|
|-
 
|-valign="top"
|Glyoxal updates from isoprene
|Tzung-May Fu (SUSTech)
|Chemistry
|
 
|-valign="top"
|Iodine chemistry
|Iodine chemistry
|Tom&aacute;s Sherwen (York)
|Becky Alexander (UW)<br>Xuan Wang (CUHK)
|Chemistry
|
|
|-
 
|Harmonization of aerosol optics (including water uptake)
|-valign="top"
|David Ridley(MIT)<br>Colette Heald (MIT)<br>Peter Adams (Carnegie Mellon)<br>Fangqun Yu (SUNY Albany)<br>Gabriele Curci (U. L'Aquila)<br>Randall Martin (Dalhousie)
|GFED5 biomass burning
|Eric Roy (MIT)
|Emissions
|
|
|-
 
|[[Grid-independent GEOS-Chem]]: Ocean interface
|-valign="top"
|Yanxu Zhang (Harvard)
|Ocean Hg surface concentrations for 2010-2020 from multi-model ensemble
|Eric Roy (MIT)<br>Ari Feinberg (IQF-CSIC)
|Hg simulation
|
|
|-
 
|Updated LAI
|-valign="top"
|Kevin Bowman (JPL)<br>Folkert Boersma (KNMI)
|Soil Hg emissions 2010-2020
|Eric Roy (MIT)<br>Ari Feinberg (IQF-CSIC)
|Hg simulation
|
|
|-
 
|Merge dicarbonyl simulation into standard simulation
|-valign="top"
|Tzung-May Fu (Peking)
|Air-sea exchange parameterization
|Eric Roy (MIT)
|Hg simulation
|
 
|-valign="top"
|Soil Hg emissions parameterization
|Ari Feinberg (IQF-CSIC)
|Hg simulation
|
 
|-valign="top"
|Sea salt uptake of GOM
|Eric Roy (MIT)
|Hg simulation
|
 
|-valign="top"
|Photoreduction rate constant
|Eric Roy (MIT)
|Hg simulation
|
 
|-valign="top"
|New observations (2010-2020) in standardized Hg benchmark for intercomparison
|Eric Roy (MIT)/Ari Feinberg (IQF-CSIC)
|Hg simulation
|
 
|-valign="top"
|Hg simulation in GCHP
|Eric Roy (MIT)
|Hg simulation
|
 
|-valign="top"
|OCIM - biogeochemical model - (C/P/N/Fe - no Hg yet) (MATLAB)
|Hannah Horowitz (UIUC)
|Hg simulation
|
|
|-
 
|Global 0.5x0.667 capability for CO2/CH4
|-valign="top"
|Liang Feng (Edinburgh)<br>Dylan Jones (U. Toronto)
|Possibly updating Hg oxidation chemistry based on Utah field campaigns
|Jessica Haskins (Utah)
|Hg simulation
|
|
|-
 
|Dynamic multiple boxes subsurface Arctic Ocean
|-valign="top"
|Helen Amos (Harvard)<br>Anne Soerensen (Harvard)
|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
|
|
|-
 
|PCB simulation: atmosphere and ocean
|-valign="top"
|Carey Friedman (MIT)<br>Helen Amos (Harvard)
|Extend IMI to CO2 (ICI)
|Hannah Nesser (JPL)  
|Inversions
|
|
|-
 
|Nighttime isoprene chemistry
|-valign="top"
|Rebecca Schwantes (Caltech)
|Global emission inventory of metals
|Tzung-May Fu (SUSTech); He Zhong Tian (Peking Normal U)
|Metals simulation
|
|
|-
 
|ClNO2
|-valign="top"
|Mat Evans (York)
|Investigate and improve performance of aerosol chemistry
|Bob Yantosca (Harvard)
|Performance
|
|
|-
 
|Dissolved Fe/Cu
|-valign="top"
|Matthew Johnson (NCSU)<br>Jingqiu Mao (NOAA/GFDL)
|PAH - update from version 11
|Lexia Cicone (MIT)
|POPs simulation
|
|
|-
 
|UV absorption of organics/brown carbon
|-valign="top"
|Rokjin Park (Seoul Nat'l Univ.)
|Species database more accessible; doc updates; TOL discussion
|Jessica Haskins (Utah)
|Structural
|
|
|-
 
|CO-CO2-CH4 simulation
|-valign="top"
|Dylan Jones (U. Toronto)<br>Annemarie Fraser (Edinburgh)
|Stretched-grid plotting in GCPy
|Killian Murphy (York)
|Tools
|
|
|-
 
|Updated HCN simulation
|-valign="top"
|Dylan Jones (U. Toronto)
|Model inter-comparison of transport (GEOS, GCHP, GCClassic)
|Lizzie Lundgren (Harvard), Emma Knowland (NASA)
|Transport
|
|
|-
 
|[[Adding_Passive_Tracers|Passive tracer module]]
|-valign="top"
|Jenny Fisher (Wollongong)
|Comparing mass fluxes in GCHP vs. traditional lat/lon wind
|'''''[mailto:jennyf@uow.edu.au Jenny Fisher] wrote:'''''
|Yuanjian Zhang (WashU), Seb Eastham (ICL)
:Passive tracers will not (at this stage) be added as a standard feature of GEOS-Chem, but can be implemented by individual users relatively straightforwardly.
|Transport
|-
|Plume in-grid lightning NOx emissions
|Alicia Gressent (U. Toulouse)
|
|
|}
|}
--[[User:Melissa Payer|Melissa Payer]] 16:41, 14 May 2013 (EDT)

Latest revision as of 15:23, 20 November 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 14.6.0

Feature integration in progress

Features listed in this table are actively being integrated into GEOS-Chem by the GEOS-Chem Support Team. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.

Feature Contributor(s) Model scope Ease of implementation Notes and References
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple
Use USTAR read from GEOS instead of calculating from U10M and V10M Yuanjian Zhang (WashU) Emissions Simple
  • HEMCO PR #279
  • NOTE: WashU will recompute mass tuning factors for each met field & resolution (GCClassic)
Carbon simulation fixes in GCClassic and GCHP Melissa Sulprizio (Harvard)
Lizzie Lundgren (Harvard) 		Carbon simulation Medium
Investigate potential performance gains of replacing the KPP Rosenbrock solver with the LSODE solver Bob Yantosca (Harvard) Chemistry Medium
Fix obspack - not working in 14.4.0 Bob Yantosca (Harvard) Diagnostics Medium
Make GC-Classic bit-for-bit reproducible upon restart
(part 1 of 2) 		Lizzie Lundgren (Harvard) GC-Classic Medium
Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard) 		Diagnostics Medium
Derive convective precipitation flux if using FP/IT generated with Grell-Freitas Yuanjian Zhang (WashU)
Viral Shah (GMAO)
Lizzie Lundgren (Harvard) 		Convection Medium
GCHP mass flux fixes Yuanjian Zhang (WashU) GCHP Simple
HEMCO log print updates Lizzie Lundgren (Harvard) ESMs Medium
Fix yaml reader bug with certain compilers Lizzie Lundgren (Harvard) Build Simple

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
Retire CH4, CO2, tagCO simulations in favor of carbon simulation Melissa Sulprizio (Harvard) Carbon gases Simple
Correct the issue that injection height has been artificially decreased by HEMCO Lixu Jun (Montana) Emissions Simple Delivered
June 2024
Capability to run GCClassic at 0.125x0.15625 resolution Melissa Sulprizio (Harvard)
Xiaolin Wang (Harvard) 		Nested grid Simple Delivered
Strat-adjusted RF in GCC and GCHP Connor Barker (UCL)
Eloise Marais (UCL) 		Radiation Simple Delivered
Archived TCR-2 OH fields for carbon simulations Kazu Miyazaki (JPL)
Melissa Sulprizio (Harvard) 		Input data Simple Data delivered
Oct 2024
  • This will be the default OH, but users will have the option of selecting other OH fields
  • geos-chem issue #2537
Dust non-sphericity impacts on optical properties Inderjeet Singh (WashU) Aerosols Medium Not yet delivered

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
Update UCX to include gravitational settling of aerosol species beyond just BCPI Conor Barker (UCL)
Eloise Marais (UCL) 		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)
Global organic N dep from various emissions; nitrate aromatics updates May Fu (SUSTech) Chemistry +
Deposition 		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 Delivered
June 2024
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 Hg emissions (2000-2019) Stephen MacFarlane (Wollongong)
Jenny Fisher (Wollongong) 		Emissions Not delivered
  • MacFarlane et al. (2024)
  • Includes emissions from black and brown coal power plants, various metal production/processing sources (Aluminium, gold, copper, lead, etc), waste products, cement production, oil refining and petroleum, chlor alkali plants, and cremation
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

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
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
NO2+OH+H2O kinetics Mat Evans (York) Chemistry
LSODES solver in KPP for faster kinetics Haipeng Lin (Harvard) Chemistry
Load balancing in chemistry solver (GCHP) Zhouran Sun (WashU) Chemistry +
Performance
Active chemistry in mesosphere for both GCHP and GCClassic Helena McDonald (MIT)
Sebastian Eastham (ICL) 		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
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 Liu (Georgia Tech) Emissions
Rice methane emissions Zichong Cheng (Harvard) Emissions+
Carbon simulation
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 GCHP mass flux run Lizzie Lundgren (Harvard) Quality Assurance
Integration testing: Reinstate TOMAS40 Betty Croft (Dalhousie/WashU) Quality Assurance
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
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
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 emissions 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
Using 3-D precipitation fluxes to calculate precipitation formation and re-evaporation in scavenging (to be consistent with GEOS/GOCART & ground precipitation) Gan Luo (Albany)
Hongyu Liu (NIA/LaRC)
Bo Zhang (NIA/LaRC) 		Wet deposition

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
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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