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

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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/2015/index.html International GEOS-Chem Meeting (IGC7)] in May 2015 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 May 2015 ==
+
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 14.5.0]]'''
  
{| border=1 cellspacing=0 cellpadding=5
+
|}
|- bgcolor="#cccccc"
+
!width="400px"|Item
+
!width="300px"|Author(s)
+
!width="400px"|Status
+
  
|- bgcolor="#ccffff"
+
== Feature integration in progress ==
!width="400px"|Science updates
+
 
!width="300px"|
+
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="400px"|
+
 
 +
{| 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="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[[Air_Quantity_Updates_for_v11-01|Correction for wet/dry pressure]]
+
|ALK4 & R4N2 chemistry
|Lizzie Lundgren (Harvard)<br>Meemong Lee (JPL)
+
|Jared Brewer (UMN)
 +
|Chemistry
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01a|v11-01a]] (approved 07 Jul 2015)
+
*[https://github.com/geoschem/geos-chem/pull/2352 geos-chem PR #1625]
*''Update 30 July 2015:'' A moisture signature is observed in CO2 concentrations during carbon simulations with zero emissions and constant 370 ppm initial conditions. The moisture signature is expected for wet mixing ratio (v/v total air) but not dry mixing ratio (v/v dry air). This issue is currently under investigation.  
+
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., 2023.]
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Update_DMS_climatology_to_Lana|Update DMS climatology to Lana]]
+
|Fix pressure handling in HEMCO standalone
|Tom Breider (Harvard)
+
|Melissa Sulprizio (Harvard)
 +
|HEMCO
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]] (approved 19 Aug 2015)
+
*[https://github.com/geoschem/HEMCO/issues/277 HEMCO issue #277]
  
 
|-valign="top"
 
|-valign="top"
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Impaction scavenging for hydrophobic BC]]
+
|Uncomment zeroed out Ca, Mg, and K cations passed to aerosol thermo (HETP)
|Qiaoqiao Wang (Max Planck Institute)
+
|Becky Alexander (UW)
 +
|Aerosols
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]] (approved 19 Aug 2015)
+
*[https://github.com/geoschem/geos-chem/pull/2398 geos-chem PR #2398]
  
 
|-valign="top"
 
|-valign="top"
|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Homogeneous IN removal]]
+
|Add 1/2-degree GC-Classic global transport tracer run directory option for GEOS-IT
|Qiaoqiao Wang (Max Planck Institute)
+
|Lizzie Lundgren (Harvard)
 +
|Run directories
 +
|Simple
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]] (approved 19 Aug 2015)
+
*[https://github.com/geoschem/geos-chem/pull/2397 geos-chem PR #2397]
  
 
|-valign="top"
 
|-valign="top"
|[[Aerosol emissions#Online emission of marine primary organic aerosol .28POA.29|Online emission of marine primary organic aerosol (POA)]]
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
|Brett Gantt (NCSU)<br>Matthew Johnson (NASA Ames)
+
|Yi Wang (Iowa)<br>Jun Wang (Iowa)
 +
|Emissions
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]] (approved 19 Aug 2015)
+
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-valign="top"
|[[Aerosols_Working_Group#Organic_Aerosol_Density_.28v.10-01.29|Density of OA update]]
+
|Fix obspack - not working in 14.4.0
|Melanie Hammer (Dalhousie)<br>Elo&iuml;se Marais (Harvard)
+
|Bob Yantosca (Harvard)
 +
|Diagnostics
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]] (approved 19 Aug 2015)
+
*[https://github.com/geoschem/geos-chem/issues/2328 geos-chem issue #2328]
  
 
|-valign="top"
 
|-valign="top"
|[[Aerosol_optical_properties#Implementation_of_optical_properties_for_brown_carbon|Addition of BrC UV absorption to address impacts on OH]]
+
|Cloud-J v8.0 including UV H2O absorption
|Melanie Hammer (Dalhousie)
+
|Lizzie Lundgren (Harvard)<br>Michael Prather (UCI)
 +
|Photolysis
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]] (approved 19 Aug 2015)
+
*[https://github.com/geoschem/Cloud-J/issues/12 Cloud-J issue #12]
 +
*[https://datadryad.org/stash/dataset/doi:10.7280/D1Q398 Dataset]
 +
*[https://www.science.org/doi/10.1126/science.adn0415 Prather and Zhu (2024)]
  
 
|-valign="top"
 
|-valign="top"
|[[Mineral_dust_aerosols#Surface_chemistry_on_dust|Acid uptake on dust aerosols]]
+
|Make GC-Classic bit-for-bit reproducible upon restart
|T. Duncan Fairlie (NASA/LARC)
+
|Lizzie Lundgren (Harvard)
 +
|GC-Classic
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]] (approved 19 Aug 2015)
+
*[https://github.com/geoschem/HEMCO/issues/18 HEMCO issue #18]
  
 
|-valign="top"
 
|-valign="top"
|[[Mineral_dust_aerosols#Improved_dust_size_distribution_scheme|Improved dust size distribution scheme]]
+
|Capture all trop and PBL height changes in budget diagnostics
|Li Zhang (Colorado U.)<br>Daven Henze (Colorado U.)
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
 +
|Diagnostics
 +
|Medium
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01b|v11-01b]] (approved 19 Aug 2015)
+
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
 +
 
 +
|}
 +
 
 +
== Prioritized and in the queue ==
 +
 
 +
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
 +
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="100px"|Delivery status
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[[POPs_simulation#Updates_to_PAH_code|Updates to PAH code]]
+
|Retire CH4, CO2, tagCO simulations in favor of carbon simulation
|Carey Friedman (MIT)
+
|Melissa Sulprizio (Harvard)
 +
|Carbon gases
 +
|Simple
 +
|
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01c|v11-01c]] (approved 14 Sep 2015)
+
*[https://github.com/geoschem/geos-chem/issues/2387 geos-chem issue #2387]
  
 +
|-valign="top"
 +
|New version of CEDS at 0.1 deg
 +
|Dandan Zhang (WashU)
 +
|Emissions
 +
|Simple
 +
|Delivered June 2024
 +
|
 +
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
  
 
|-valign="top"
 
|-valign="top"
|[[Mercury#Hg ocean MLD bug fixes|Hg Ocean MLD bug fixes]]
+
|Chemistry for RCOOH, updated monoterpenes, new PNs and ANs
|Amanda Giang (MIT)
+
|Katie Travis (NASA)<br>Kelvin Bates (CU Boulder)
 +
|GC-Classic
 +
|Simple
 +
|Delivered June 2024
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01c|v11-01c]] (approved 14 Sep 2015)
+
*[https://github.com/geoschem/geos-chem/pull/2318 geos-chem PR #2318]
  
 +
|-valign="top"
 +
|Use USTAR read from GEOS instead of calculating from U10M and V10M
 +
|Yuanjian Zhang (WashU)
 +
|Emissions
 +
|Simple
 +
|Delivered June 2024
 +
|
 +
*[https://github.com/geoschem/HEMCO/pull/279 HEMCO PR #279]
 +
*NOTE: Mass tuning factors must be recomputed for each met field & resolution (GCClassic)
  
 
|-valign="top"
 
|-valign="top"
|[[Mercury#Hg ocean rate coefficients|Hg Ocean rate coefficients]] (as an option, not default)
+
|Correct the issue that injection height has been artifically decreased by HEMCO
|Shaojie Song (MIT)
+
|Yuanjian Zhang (WashU)
 +
|Emissions
 +
|Simple
 +
|Delivered June 2024
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01c|v11-01c]] (approved 14 Sep 2015)
+
*[https://github.com/geoschem/geos-chem/pull/279 geos-chem PR #2358]
  
 +
|-valign="top"
 +
|PPN photolysis
 +
|Bex Horner (UCL)
 +
|Chemistry
 +
|Medium
 +
|Delivered June 2024
 +
|
 +
*[https://github.com/geoschem/geos-chem/pull/2371 geos-chem PR #2371]
 +
*[https://doi.org/10.5194/egusphere-2024-1541 Horner et al. (2024)]
 +
*Need to update Cloud-J input files accordingly
  
|-valign="top"  
+
|}
|[[Mercury#Updates_to_Arctic_Hg_processes|Hg Arctic process updates]]
+
 
|Jenny Fisher (Wollongong)
+
== 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
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01c|v11-01c]] (approved 14 Sep 2015)
+
*[https://github.com/geoschem/geos-chem/issues/2392 geos-chem issue #2392]
  
 +
|-valign="top"
 +
|Update UCX to include gravitational settling of aerosol species beyond just BCPI
 +
|Conor Barker (UCL)<br>Eloise Marais (UCL)
 +
|Aerosols
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
|[[Mercury#Hg emission updates|Hg emission updates (NEI2011, NPRI2011, UNEP2010 with adjustments for in-plume reduction and emission controls)]]
+
|Seasalt aerosol from sea ice leads (2002-2011)
|Yanxu Zhang (Harvard)<br>Amanda Giang (MIT)
+
|Hannah Horrowitz (UIUC)
 +
|Aerosols
 +
|Not delivered
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01c|v11-01c]] (approved 14 Sep 2015)
+
*Offline and online, ready to go in HEMCO (optional in addition to existing seasalt emissions)
  
 
|-valign="top"
 
|-valign="top"
|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#CO2_direct_effect_on_isoprene_emissions|CO2 direct effect on isoprene emissions]]
+
|Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.)
 +
|Katie Travis (NASA)<br>Kelvin Bates (CU Boulder)
 +
|Emissions
 +
|Not delivered
 +
|
 +
*[https://github.com/geoschem/geos-chem/issues/2390 geos-chem issue #2390]
 +
 
 +
|-valign="top"
 +
|Global organic N dep from various emissions; nitrate aromatics updates
 +
|May Fu (SUSTech)
 +
|Chemistry +<br>Deposition
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|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]
 +
 
 +
|-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]
 +
 
 +
|-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]
 +
 
 +
|-valign="top"
 +
|China agriculture NH3 emissions
 
|Amos Tai (CUHK)
 
|Amos Tai (CUHK)
 +
|Emissions
 +
|Not delivered
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01d|v11-01d]] (approved 12 Dec 2015)
 
  
 
|-valign="top"
 
|-valign="top"
|[[Organics Working Group#Criegee intermediates|Criegee intermediates]]
+
|T-dependent anthropogenic VOCs
|Dylan Millet (U. Minnesota)<br>Elo&iuml;se Marais (Harvard)
+
|May Fu (SUSTech)
 +
|Emissions
 +
|Not delivered
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01d|v11-01d]] (approved 12 Dec 2015)
+
*Option. Requires processing existing anthropogenic VOC emissions to generate offline emissions to read in. Parameterised for China.
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem species database|Developing a common data structure to contain Henry's law constants and other relevant parameters for each species]]
+
|New source functions for transport tracers beryllium-7 and beryllium-10
 +
|Minjie Zheng (ETH)
 +
|Emissions
 +
|Delivered<br>June 2024
 
|
 
|
[[GEOS-Chem Support Team]]<br>Katie Travis (Harvard)
+
*Available at https://zenodo.org/records/8372652
 +
 
 +
|-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
 
|
 
|
*Introduced in [[GEOS-Chem v11-01#v11-01d|v11-01d]] (approved 12 Dec 2015)
+
*Data involves many files- need to think about temporal frequency
*Modified in [[GEOS-Chem v11-01#v11-01e|v11-01e]] (approved 04 Jan 2016)
+
  
|-bgcolor="#ccffff" valign="top"
+
|-valign="top"
!width="400px"|Structural/programming updates
+
|Australian Hg emissions (2000-2019)
!width="300px"|  
+
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
!width="400px"|
+
|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
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem timers]]
+
|Hg geogenic emissions (volcanic, rock weathering)
|Matt Yannetti (GCST)
+
|Eric Roy (MIT)
 +
|Emissions
 +
|Not delivered
 
|
 
|
*Included in [[GEOS-Chem v11-01#v11-01c|v11-01c]] (approved 14 Sep 2015)
+
*[https://github.com/geoschem/geos-chem/issues/2361 geos-chem #2361]
 +
*[https://gmd.copernicus.org/preprints/gmd-2024-65/ Dastoor et al. (2024)]
  
 
|-valign="top"
 
|-valign="top"
|[[MERRA-2|Adding support for MERRA-2 meteorology]]
+
|Hg biomass burning - FINN2.5 & GFED4
|[[GEOS-Chem Support Team]]
+
|Eric Roy (MIT)
 +
|Emissions
 +
|Not delivered
 
|
 
|
*Initial modifications for running with MERRA-2 were included in [[GEOS-Chem v11-01#v11-01c|v11-01c]], which was approved on 14 Sept 2015
+
*[https://github.com/geoschem/geos-chem/issues/2361 geos-chem #2361]
*Full integration of MERRA-2 in GEOS-Chem (i.e. making "full-chemistry" simulations compatible with MERRA-2) is slated for inclusion in [[GEOS-Chem v11-01#v11-01f|v11-01f]]
+
*[https://gmd.copernicus.org/preprints/gmd-2024-65/ Dastoor et al. (2024)]
**Scale factors for lightning, dust, and other emissions will need to be recomputed based on 1-year (or longer) simulations.
+
  
 
|-valign="top"
 
|-valign="top"
|Structural updates for GEOS-Chem HP
+
|BCC-GC online
|[[GEOS-Chem Support Team]]<br>NASA/GMAO
+
|Lin Zhang (PKU)
 +
|External Model
 +
|Not delivered
 
|
 
|
*This will be an ongoing process that will occur simultaneously as the above science updates are brought into GEOS-Chem.
 
  
|-bgcolor="#ccffff" valign="top"
+
|-valign="top"
!width="400px"|Documentation
+
|GC-YIBS with online fire emissions
!width="300px"|  
+
|Xu Yue (NUIST)<br>Hong Liao (NUIST)
!width="400px"|
+
|External Model
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|GISS-GC offline (GCAP)
 +
|Lee Murray (Rochester)
 +
|GCAP
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem_v10-01#Adding_documentation_to_describe_internal_changes_made_to_GMAO_met_field_products|Update wiki documentation for GMAO met field products]]:
+
|Archived TCR-2 OH fields for carbon simulations
*Naming convention used by GMAO
+
|Kazu Miyazaki (JPL)
*Version numbers corresponding to dates of met field data
+
|Input data
|[[GEOS-Chem Support Team]]<br>NASA/GMAO
+
|Not delivered
 
|
 
|
*In progress
+
*This will be the default OH, but users will have the option of selecting other OH fields
  
 
|}
 
|}
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 15:51, 27 January 2016 (UTC)
+
== Almost there (< 6 months) ==
  
=== Ready to go in ===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
  
{| border=1 cellspacing=0 cellpadding=5
+
{|border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
!width="400px"|Item
+
!width="200px"|Feature
!width="300px"|Author(s)
+
!width="200px"|Contributor(s)
!width="400px"|Status
+
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|FlexChem
+
|Dust non-sphericity impacts on optical properties
|Mike Long (Harvard)
+
|Inderjeet Singh (WashU)
 +
|Aerosols
 
|
 
|
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01g|v11-01g]]
 
  
 
|-valign="top"
 
|-valign="top"
|[[PAN|PAN updates]]
+
|Fixes to stratospheric aerosol settling
|Emily Fischer (CSU)
+
|Connor Barker (UCL)<br>Eloise Marais (UCL)
 +
|Aerosols
 
|
 
|
*Delivered to [[GEOS-Chem Support Team|GCST]] (May 2013)
 
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01h|v11-01h]]
 
  
 
|-valign="top"
 
|-valign="top"
|Halogen chemistry updates
+
|DMS chemistry in v14
|Tom&aacute;s Sherwen (York)<br>Johan Schmidt (Harvard)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Linia Tashmim (UCR)<br>Will Porter (UCR)
 +
|Chemistry
 
|
 
|
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01h|v11-01h]]
 
  
 
|-valign="top"
 
|-valign="top"
|[[Updates_in_JPL_Publication_15-10|Updating chemistry rate constants based on ''JPL Publication 15-10'']]
+
|KPP standalone + 3D Interface
|Barron Henderson (U. Florida)<br>Mat Evans (U. York)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Obin Sturm (USC)
 +
|Chemistry
 
|
 
|
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01h|v11-01h]]
+
 
 
|-valign="top"
 
|-valign="top"
|[[NOx-Ox-HC-aerosol#Monthly mean surface distributions|Monthly mean surface methane distributions]]
+
|NO2+OH+H2O kinetics
|Lee Murray (NASA GISS/LDEO)
+
|Mat Evans (York)
 +
|Chemistry
 
|
 
|
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01h|v11-01h]]
 
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|LSODES solver in KPP for faster kinetics
|Fabien Paulot (NOAA/GFDL)
+
|Haipeng Lin (Harvard)
 +
|Chemistry
 
|
 
|
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jan 2016)
 
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01h|v11-01h]]
 
  
 
|-valign="top"
 
|-valign="top"
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Temporary fix to remove SO2 scavenging in convective updrafts]]
+
|Load balancing in chemistry solver (GCHP)
|Duncan Fairlie (NASA/LARC)  
+
|Zhouran Sun (WashU)
 +
|Chemistry +<br>Performance
 
|
 
|
*Delivered to [[GEOS-Chem Support Team|GCST]] (Nov 2015)
 
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01h|v11-01h]]
 
  
 
|-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]]
+
|Active chemistry in mesosphere for both GCHP and GCClassic
|Xuan Wang (MIT)
+
|Helena McDonald (MIT)<br>Sebastian Eastham (ICL)
 +
|Chemistry
 
|
 
|
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jan 2016)
 
*Slated for inclusion in [[GEOS-Chem v11-01#v11-01h|v11-01h]]
 
  
 
|-valign="top"
 
|-valign="top"
|Sub-grid non-linear chemistry of NOx-O3 system related to lightning NOx emissions
+
|Updated aromatic oxidation
|Alicia Gressent (MIT)
+
|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
 +
|Chemistry
 
|
 
|
*Slated for inclusion after FlexChem
 
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Metal_catalyzed_oxidation_of_SO2|Metal catalyzed oxidation of SO2]] (as a switch)
+
|MCO3 uptake by cloud forming MP; leading to lower PAN
|Becky Alexander (UW)
+
|Laura Yang (Harvard)
 +
|Chemistry
 
|
 
|
*Slated for inclusion after FlexChem
 
*'''''Becky Alexander wrote on 14 Sep 2015:'''''
 
:I've incorporated both the metal catalyzed chemistry and the sulfate isotopes into v10. The metal catalyzed chemistry is much slower than it is when run in v8 and v9. I still have not yet figured out why. I'm not comfortable adding this into the standard model until I figure it out. The emissions are quite different in v10 because of HEMCO, and metal catalyzed chemistry is very sensitive to emissions of primary anthropogenic sulfate, so that's my current hypothesis for the difference. I will probably not get back to debugging this until late October.
 
  
 
|-valign="top"
 
|-valign="top"
|Fix to direct/diffuse radiation
+
|Implement isotope simulation for CH4 in the carbon simulation
|Katie Travis (Harvard)
+
|Lee Murray (Rochester)
 +
|Chemistry
 
|
 
|
 +
*Will have to change negative emissions from soil to a first-order loss process
  
 
|-valign="top"
 
|-valign="top"
|[[Dry_deposition#Fix_for_NO3_.2B_ISOP_product|Fix for NO3 + ISOP product]]
+
|Documentation for adding additional aerosol species
|Katie Travis (Harvard)
+
|Connor Barker (UCL)
 +
|Documentation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Update OH + NO2 rate
+
|Column diagnostics
|Barron Henderson (UF)
+
|Lizzie Lundgren (Harvard)<br>Viral Shah (GMAO)
 +
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate and nitrate simulation]]
+
|TOMAS rate diagnostics -- improve performance
|Becky Alexander (UW)
+
|Betty Croft (WashU/Dal)
 +
|Diagnostics +<br>Performance
 
|
 
|
  
|}
+
|-valign="top"
 +
|Archive gamma values from heterogeneous chemistry
 +
|Bob Yantosca (Harvard)
 +
|Diagnostics
 +
|
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 15:51, 27 January 2016 (UTC)
+
|-valign="top"
 +
|RRTMG Documentation
 +
|GCST
 +
|Documentation
 +
|
  
=== Almost there (< 6 months) ===
+
|-valign="top"
 +
|Canopy Physics Model
 +
|Sam Silva (MIT)
 +
|Dry Deposition
 +
|
 +
*Available at https://zenodo.org/records/3614062#.XzvrH5NKjOR (GEOS-Chem 12.3.0)
  
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
|- bgcolor="#cccccc"
+
|Dry deposition diagnostics by land cover
!width="400px"|Item
+
|Holly Nowell (FSU)<br>Chris Holmes (FSU)
!width="300px"|Author(s)
+
|Dry Deposition
!width="400px"|Status
+
|
  
 
|-valign="top"
 
|-valign="top"
|Update MODIS LAI fields through 2015
+
|Dry deposition process diagnostics
|Barron Henderson (UF)
+
|Holly Nowell (FSU)<br>Chris Holmes (FSU)
 +
|Dry Deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[Python code for GEOS-Chem|Python GEOS-Chem output processing and visualization package]]
+
|Biomass burning for TOMAS
|Beno&icirc;t Bovy (U. Li&egrave;ge-Belgium)
+
|Nicole June (CSU)
 +
|Emissions +<br>Microphysics
 
|
 
|
*Users may download and test it and submit feedback to Benoit Bovy.
 
  
 
|-valign="top"
 
|-valign="top"
|Benchmark of stratosphere simulation
+
|Historic biomass burning (1750-2010)
|Dylan Jones (U. Toronto)
+
|Pengfei Liu (Georgia Tech)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Benchmark for nested NA model
+
|Rice methane emissions
|Jun Wang (UNL)
+
|Zichong Cheng (Harvard)
 +
|Emissions+<br>Carbon simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|High-resolution regional emissions (to be implemented via HEMCO)
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
|Lin Zhang (PKU)<br>Yuxuan Wang (Texas A&M)
+
|Tia Scarpelli (Carbon Mapper)<br>Melissa Sulprizio (Harvard)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to isoprene chemistry, includes:
+
|New prior CO2 biospheric fluxes from CMS-FLUX and GMAO
*Fast photolysis of carbonyl nitrates
+
|Kevin Bowman (JPL)<br>Lesley Ott (GMAO)
*Aerosol uptake of organic nitrates
+
|Emissions
|Jenny Fisher (U. Wollongong)<br>Elo&iuml;se Marais (Harvard)<br>Kelvin Bates (Caltech)<br>Katie Travis (Harvard)
+
 
|
 
|
*This has already been added to the SEAC4RS research version of GEOS-Chem
+
*GMAO can provide high-resolution  fluxes (as high as 12 km)
  
 
|-valign="top"
 
|-valign="top"
|3D chemical source for CO2 and CO; OH for tagged CO and CH4 simulations
+
|Snowpack Br2 emission
|Dylan Jones (U. Toronto)
+
|Chris Holmes (FSU)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Hg code updates (emissions, chemistry, ocean, land)
+
|EDGAR v8.1_toxHg emissions for 1970-2022
|[[Hg and POPs Working Group]]
+
|Eric Roy (MIT)
 +
|Emissions
 
|
 
|
  
 +
|-valign="top"
 +
|Improve pressure handling in GCHP advection
 +
|Yuanjian Zhang (WashU)<br>Seb Eastham (ICL)
 +
|GCHP
 +
|
  
 
|-valign="top"
 
|-valign="top"
|Lightning NOx plume chemistry
+
|Add error trap for duplicate scale factors in HEMCO
|Alicia Gressent (U. Paul Sabatier)
+
|Bob Yantosca (Harvard)
 +
|HEMCO
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Nested CO2, CH4, Hg, TOMAS, adjoint, etc.
+
|Integration testing: Add stretched grid
|[[Nested Model Working Group]]
+
|Lizzie Lundgren (Harvard)
 +
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updated nighttime isoprene chemistry
+
|Integration testing: Add GCHP mass flux run
|Rebecca Schwantes (Caltech)
+
|Lizzie Lundgren (Harvard)
 +
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updated organic deposition
+
|Integration testing: Add run with all diagnostics turned on
|Katie Travis (Harvard)<br>Jenny Fisher (U. Wollongong)
+
|GCST
 +
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|EPA-derived BC/OA emissions over US (1990-2012)
+
|Integration testing: Reinstate TOMAS40
|David Ridley (MIT)
+
|Betty Croft (Dalhousie/WashU)
 +
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Observation operators for CO2 OCO-2 in GEOS-Chem Adjoint
+
|Strat-adjusted RF in GCC and GCHP
|Kevin Bowman (JPL)<br>Dylan Jones (U. Toronto)
+
|Connor Barker (UCL)<br>Eloise Marais (UCL)
 +
|Radiation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Observation operators for CH4 GOSAT, SCIAMACHY in GEOS-Chem Adjoint
+
|Continue cleanup of C-preprocessor switches
|Dylan Jones (U. Toronto)<br>Alex Turner (Harvard)
+
|Lizzie Lundgren (Harvard)
 +
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Remove dependence of species drydep on HNO3 drydep
+
|Updates to Luo deposition scheme
|Katie Travis (Harvard)<br>Jenny Fisher (U. Wollongong)
+
|Gan Luo (Albany)
 +
|Wet Deposition
 
|
 
|
 +
*New version, keep as switch (not default)
  
 
|-valign="top"
 
|-valign="top"
|Arctic Hg cycling
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
|Jenny Fisher (U. Wollongong)
+
|Gan Luo (Albany)<br>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.
 +
 +
{| 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"
|MOSAIC implementation
+
|ML algorithms for bulk aerosol
|Sebastian Eastham (MIT)
+
|Arshad Nair (Albany)<br>Fangqun Yu (Albany)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updated documentation on setting up new nested domains
+
|Heterogeneous sulfate chemistry
|Lin Zhang (PKU)<br>Yuxuan Wang (Texas A&M)
+
|Katie Travis (NASA)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Nested model publication wiki page
+
|H2 as an active species
|Jun Wang (UNL)
+
|Seb Eastham (ICL)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Past and future fire emissions under RCPs
+
|HCN, acetonitrile as fire tracers
|Loretta Mickley (Harvard)<br>Yuhang Wang (GIT)<br>Shiliang Wu (MT)
+
|Kevin Bates (CU Boulder)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|QFED fire emissions (up to 2014)
+
|Implement ethane in carbon simulation
|Christoph Keller (Harvard)<br>Katie Travis (Harvard)
+
|Yuzhong Zhang (Westlake)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem tracer units|Uniformity of units]]
+
|Mesospheric source of CO
|[[GEOS-Chem Support Team]]
+
|Dylan Jones (UofT)<br>Pam Wales (NASA GSFC)
 +
|Emissions
 
|
 
|
*Phase 1 was completed in v11-01e (04 Jan 2016)
 
*Remaining phases will be started after FlexChem
 
  
 
|-valign="top"
 
|-valign="top"
|Update SO2 scavenging in convective updrafts for consistency
+
|Drought-stress algorithm
|Duncan Fairlie (NASA/LARC)  
+
|Wei Li (Houston)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[Aerosols_Working_Group#Sedimentation_of_stratospheric_aerosols|Sedimentation of stratospheric aerosols]]
+
|Physically-based resolution correction for BVOC emissions using MEGAN
|Sebastian Eastham (MIT)
+
|May Fu (SUSTech)
 +
|Emissions
 
|
 
|
  
|}
+
|-valign="top"
 +
|Canadian forest fire prediction system (Canada government forecast model)
 +
|Robin Stevens (Montreal)
 +
|Emissions
 +
|
  
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 20:50, 17 February 2016 (UTC)
+
|-valign="top"
 +
|Cooking emissions (not biofuel)
 +
|Kelvin Bates (CU Boulder)
 +
|Emissions
 +
|
  
=== Over the horizon (6-12 months) ===
+
|-valign="top"
 +
|State-specific annual emissions scaling factors (US) (1990-2021)
 +
|Ishir Dutta (MIT)
 +
|Emissions
 +
|
  
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
|- bgcolor="#cccccc"
+
|GISS-GC online
!width="400px"|Item
+
|Lee Murray (Rochester)
!width="300px"|Author(s)
+
|External model
!width="400px"|Status
+
|
  
 
|-valign="top"
 
|-valign="top"
|A snow NOx source from deep snowpack
+
|Hybrid MPI-OpenMP in GCHP
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)<br>Lizzie Lundgren (Harvard)
 +
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dust emissions at nested-grid resolution
+
|MAPL3: Update to MAPL3 in GCHP, including replacement of ExtData.rc and HISTORY.rc with YAML files
|Yuxuan Wang (Texas A&M)<br>Jun Wang (UNL)
+
|Lizzie Lundgren (Harvard)
 +
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive meteorological fields with higher resolution (for RCPs)
+
|MAPL3: Comply with MAPL "positive" standard in GCHP diagnostic files
|Lee Murray (NASA GISS/LDEO)
+
|Lizzie Lundgren (Harvard)
 +
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Land cover module in GEOS-Chem
+
|MAPL3: Wildcards in GCHP History
|Jeffrey Geddes (MIT)<br>Michael Long (Harvard)
+
|Lizzie Lundgren (Harvard)
 +
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Improved lightning emission scheme
+
|MAPL3: Output emissions with positive up convention in GCHP
|Lee Murray (NASA GISS/LDEO)
+
|Lizzie Lundgren (Harvard)
 +
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive high resolution wind fields for sea salt
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
|[[GEOS-Chem Support Team]]
+
|Bob Yantosca (Harvard)
 +
|Performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Photophysical oxidation of aldehydes
|Carey Friedman (MIT)<br>Helen Amos (Harvard)
+
|Paulo Sebastianelli (Wollongong)<br>Jenny Fisher (Wollongong)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|VBS SOA option
+
|DMS updates
|Rokjin Park (SNU)
+
|Will Porter (UCR)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Kz eddy mixing scheme
+
|Furans emission and chemistry
|Karen Yu (Harvard)
+
|Lixu Jin (Montana)<br>Lu Hu (Montana)
 +
|Chemistry + <br>Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Update HCN simulation, implement in standard model via Flexchem
+
|Cl2 prodcution from Fe aerosol
|Jenny Fisher (U. Wollongong)
+
|Qianjie Chen (HK Poly)<br>Becky Alexander (UW)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Merge standard simulation with specialty simulations for OVOC, acids, aromatics, dicarbonyls, terpenes
+
|VCP emissions
|Dylan Millet (UMN)<br>Xin Chen (UMN)
+
|Kevin Bates (CU Boulder)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Cl chemistry updates
+
|Bidirectional land-atmosphere exchange for Hg
|Lyatt Jaegl&eacute; (UW)
+
|Yuying Cui (MIT/Tsinghua)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Automate redistribution of NOx in HEMCO
+
|OH covariances for inversions
|Lee Murray (NASA GISS/LDEO)
+
|Elise Penn (Harvard)
 +
|Inversions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Injection height for fire emissions
+
|CESM2-GC offline
|Emily Fischer (CSU)
+
|Seb Eastham (ICL)<br>Lee Murray (Rochester)
 +
|Met fields
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Option for daily OH, etc. for Hg simulation
+
|Re-binning of off-line sea salt and dust for TOMAS
|Noelle Selin (MIT)
+
|Betty Croft (Dalhousie)
 +
|Microphysics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Surface ocean Hg boundary conditions from MITgcm
+
|TOMAS nucleation updates
|Hannah Horowitz (Harvard)
+
|Sam O'Donnell (CSU)
 +
|Microphysics
 
|
 
|
  
|-
+
|-valign="top"
|NetCDF output: Flexible diagnostic package and tracer restart file
+
|Stratospheric aerosol APM
|[[GEOS-Chem Support Team]]
+
|Fangqun Yu (SUNY Albany)
 +
|Microphysics
 +
|
 +
 
 +
|-valign="top"
 +
|Transition from MERRA-2 to GEOS-IT for benchmarking
 +
|Yuanjian Zhang (WashU)
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Automate integration testing on AWS
 +
|Yidan Tang (WashU)
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Integration testing: Add across end of year run
 +
|GCST
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Integration testing: Add GEOS-IT
 +
|Yuanjian Zhang (WashU)
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Separate mixing, emissions, and drydep
 +
|Yuanjian Zhang (WashU)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Intel IFX compiler
 +
|Bob Yantosca (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|CMake option to only build libraries but not executable, also passing C-preprocessor statements to turn off code
 +
|Bob Yantosca (Harvard)<br>Lee Murray (Rochester)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Remove differences introduced when breaking up GC-Classic runs in time; and flexible precision in HEMCO
 +
|Lizzie Lundgren (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Limit allocation of State_Met to what is needed per simulation
 +
|Melissa Sulprizio (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|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 Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:56, 9 June 2015 (UTC)
+
== Longer term (12-24 months)==
  
=== Longer term (12-24 months)===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
!width="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
  
 
|-valign="top"
 
|-valign="top"
|Global GEOS-FP native-resolution met fields to enable flexible nested domains
+
|Modal aerosol model (MAM7) in GCHP
|Jintai Lin (PKU)<br>Lin Zhang (PKU)<br>[[GEOS-Chem Support Team]]
+
|Shreya Sharma (MIT)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|DMS oxidation scheme updating
+
|Online OCIM ocean biogeochemistry
|Tom Breider (Harvard)<br>Becky Alexander (U. Washington)<br>[[Chemistry Issues|Oxidants and Chemistry Working Group]]
+
|Lee Murray (Rochester)<br>Hannah Horowitz (UIUC)<br>Chris Holmes (FSU)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dynamics of stomatal conductance in dry deposition
+
|Perchlorate chemistry
|Amos Tai (CUHK)
+
|Yuk Chun Chan (UW)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|New dry deposition module (Zhang et al., 2013)
+
|Non-stomatal dry deposition (2-layer canopy model)
|Jintai Lin (PKU)
+
|Michael Vermeuel (Purdue)
 +
|Dry Deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Bi-directional NH3 emissions
+
|Continental chloride particle emissions (salty dust, road salt)
|Juliet Zhu (CSU)<br>Lin Zhang (PKU)
+
|Jessica Haskins (Utah)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Arsenic simulation
+
|Multivolatility emission inventory to address gaps in EDGAR/HTAP etc.
|Shiliang Wu (MT)
+
|Ruochong (Tshingua)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Hg benchmark updates for atmosphere and ocean
+
|Lightning NOx production rates
|Hannah Horowitz (Harvard)<br>Viral Shah (UW)<br>Shaojie Song (MIT)
+
|Bex Horner (UCL)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Emission scheme of dust: subgrid wind variation to remove resolution dependence and better interannual variability
+
|HFO and CF3CHO
|David Ridley (MIT)
+
|Beth Killen (Wollongong)<br>Jenny Fisher (Wollongong)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Ozone damage to vegetation
+
|Glyoxal updates from isoprene
|Amos Tai (CUHK)
+
|Tzung-May Fu (SUSTech)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Implement biogenic emissions of ethane, propane
+
|Iodine chemistry
|Zitely Tzompa (CSU)
+
|Becky Alexander (UW)<br>Xuan Wang (CUHK)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Global evaluation of using LWC and ICW variables from met fields
+
|GFED5 biomass burning
|[http://web.atmos.ucla.edu/~qli/trop/Home.html UCLA group]<br>Hongyu Liu (NIA/NASA LARC)<br>Betty Croft (Dalhousie)
+
|Eric Roy (MIT)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Joint CO/CO2/CH4 forward model simulation
+
|Ocean Hg surface concentrations for 2010-2020 from multi-model ensemble
|Nicholas Deutscher (U. Wollongong)
+
|Eric Roy (MIT)<br>Ari Feinberg (IQF-CSIC)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Subgrid scale precipitation variability
+
|Soil Hg emissions 2010-2020
|[http://acmg.seas.harvard.edu/ Harvard group]
+
|Eric Roy (MIT)<br>Ari Feinberg (IQF-CSIC)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dry deposition: Update the ozone dry deposition scheme
+
|Air-sea exchange parameterization
|Murphy group (UofT)
+
|Eric Roy (MIT)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Country-based weekend/weekday variability for EDGAR v4.2
+
|Soil Hg emissions parameterization
|Lee Murray (NASA GISS/LDEO)<br>Christoph Keller (Harvard)
+
|Ari Feinberg (IQF-CSIC)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Sea salt emission from sea ice
+
|Sea salt uptake of GOM
|Jiayue Huang (UW)
+
|Eric Roy (MIT)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Resolution-independent lightning NOx scaling
+
|Photoreduction rate constant
|Lee Murray (NASA GISS/LDEO)
+
|Eric Roy (MIT)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Historical Hg emissions (1850-present)
+
|New observations (2010-2020) in standardized Hg benchmark for intercomparison
|Hannah Horowitz (Harvard)
+
|Eric Roy (MIT)/Ari Feinberg (IQF-CSIC)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Nested-grid model with GEOS-FP at 1/2&deg; x 5/8&deg; resolution
+
|Hg simulation in GCHP
|[[Nested Model Working Group]]
+
|Eric Roy (MIT)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|TNO emissions over Europe (7km)
+
|OCIM - biogeochemical model - (C/P/N/Fe - no Hg yet) (MATLAB)
|[http://acmg.seas.harvard.edu/geos/geos_people.html#athens Greece team]
+
|Hannah Horowitz (UIUC)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Re-evaluation of SST dependence of sea salt emissions
+
|Possibly updating Hg oxidation chemistry based on Utah field campaigns
|Jiayue Huang (UW)
+
|Jessica Haskins (Utah)
 +
|Hg simulation
 
|
 
|
  
|}
+
|-valign="top"
 +
|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
 +
|
  
--[[User:Melissa Payer|Melissa Sulprizio]] 14:08, 11 May 2015 (EDT)
+
|-valign="top"
 +
|Extend IMI to CO2 (ICI)
 +
|Hannah Nesser (JPL)
 +
|Inversions
 +
|
 +
 
 +
|-valign="top"
 +
|Global emission inventory of metals
 +
|Tzung-May Fu (SUSTech); He Zhong Tian (Peking Normal U)
 +
|Metals simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Investigate and improve performance of aerosol chemistry
 +
|Bob Yantosca (Harvard)
 +
|Performance
 +
|
 +
 
 +
|-valign="top"
 +
|PAH - update from version 11
 +
|Lexia Cicone (MIT)
 +
|POPs simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Species database more accessible; doc updates; TOL discussion
 +
|Jessica Haskins (Utah)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Stretched-grid plotting in GCPy
 +
|Killian Murphy (York)
 +
|Tools
 +
|
 +
 
 +
|-valign="top"
 +
|Model inter-comparison of transport (GEOS, GCHP, GCClassic)
 +
|Lizzie Lundgren (Harvard), Emma Knowland (NASA)
 +
|Transport
 +
|
 +
 
 +
|-valign="top"
 +
|Comparing mass fluxes in GCHP vs. traditional lat/lon wind
 +
|Yuanjian Zhang (WashU), Seb Eastham (ICL)
 +
|Transport
 +
|
 +
 
 +
|}

Latest revision as of 14:54, 25 July 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
Fix pressure handling in HEMCO standalone Melissa Sulprizio (Harvard) HEMCO Simple
Uncomment zeroed out Ca, Mg, and K cations passed to aerosol thermo (HETP) Becky Alexander (UW) Aerosols Simple
Add 1/2-degree GC-Classic global transport tracer run directory option for GEOS-IT Lizzie Lundgren (Harvard) Run directories Simple
New soil NOx parameterization Yi Wang (Iowa)
Jun Wang (Iowa)
Emissions Medium
Fix obspack - not working in 14.4.0 Bob Yantosca (Harvard) Diagnostics Medium
Cloud-J v8.0 including UV H2O absorption Lizzie Lundgren (Harvard)
Michael Prather (UCI)
Photolysis Medium
Make GC-Classic bit-for-bit reproducible upon restart Lizzie Lundgren (Harvard) GC-Classic Medium
Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard)
Diagnostics Medium

Prioritized and in the queue

Features listed in this table are prioritized for integration into GEOS-Chem in the near future.

Feature Contributor(s) Model scope Ease of implementation Delivery status Notes and References
Retire CH4, CO2, tagCO simulations in favor of carbon simulation Melissa Sulprizio (Harvard) Carbon gases Simple
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple Delivered June 2024
Chemistry for RCOOH, updated monoterpenes, new PNs and ANs Katie Travis (NASA)
Kelvin Bates (CU Boulder)
GC-Classic Simple Delivered June 2024
Use USTAR read from GEOS instead of calculating from U10M and V10M Yuanjian Zhang (WashU) Emissions Simple Delivered June 2024
  • HEMCO PR #279
  • NOTE: Mass tuning factors must be recomputed for each met field & resolution (GCClassic)
Correct the issue that injection height has been artifically decreased by HEMCO Yuanjian Zhang (WashU) Emissions Simple Delivered June 2024
PPN photolysis Bex Horner (UCL) Chemistry Medium Delivered June 2024

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)
Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.) Katie Travis (NASA)
Kelvin Bates (CU Boulder)
Emissions Not delivered
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
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
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
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: 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
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