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

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(Over the horizon (6-12 months))
(Feature integration in progress)
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On this page we list the priorities for ongoing GEOS-Chem model development.  We also list the items that were once identified as priorities but have since been added to the standard mainline GEOS-Chem code.
+
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
  
== List of priorities as of Dec 2011 ==
+
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]].
  
This is list of planned GEOS-Chem model development items updated from the [[GEOS-Chem model development priorities#List of priorities identified at IGC5|List of priorities identified at IGC5]]. The key model developer or model contact is identified for each item.
+
== Release schedule ==
  
We count on user input to augment and prioritize this list, please contact your [http://acmg.seas.harvard.edu/geos/geos_working_groups.html Working Group Chair] or model scientist [mailto:djacob@fas.harvard.edu Daniel Jacob].
+
Please see the [http://wiki.seas.harvard.edu/geos-chem/images/e/e1/GEOS-Chem_Release_Proposal.pdf GEOS-Chem Release Proposal] outlining the procedure and schedule for releasing GEOS-Chem versions.  
  
=== Awaiting release ===
+
== Merged and awaiting release ==
  
{| border=1 cellspacing=0 cellpadding=5
+
See the links below for items merged and awaiting release.
|- bgcolor="#cccccc"
+
!width="400px"|Item
+
!Author(s)
+
!Status
+
|-
+
|[[Acetone|Improved acetone simulation]]
+
|Emily Fischer (Harvard)
+
|Delivered to [[GEOS-Chem Support Team|GCST]], slated for [[GEOS-Chem v9-01-03|v9-01-03]]
+
|-
+
|Complete shift of biogenic VOC emissions from GEIA to MEGAN; retire GEIA
+
|Dylan Millet (U. Minnesota)
+
|Delivered to GCST, slated for v9-01-03
+
|-
+
|OVOC's dry deposition
+
|Jingqiu Mao (NOAA/GFDL)
+
|Delivered to GCST; slated for v9-01-03
+
|-
+
|Improved sea salt [[Sea salt aerosols#SST dependent sea salt emissions|emission]] & [[Sea salt aerosols#Updates to sea salt dry deposition|deposition]]
+
|Lyatt Jaeglé (U. Washington)
+
|Delivered to GCST, slated for v9-01-03
+
|-
+
|Dust submicron size distribution for optics
+
|David Ridley (Colo. State)
+
|Delivered to GCST, slated for v9-01-03
+
|-
+
|Improved [[Wet_deposition#Add_scavenging_by_snow|snow scavenging]] and [[Wet_deposition#Allow_both_washout_and_rainout_when_precipitation_forms|washout parameterization]]
+
|Qiaoqiao Wang (Harvard)
+
|Delivered to GCST, slated for v9-01-03
+
|-
+
|[[Ship emissions#PARANOX ship plume model|PARANOX ship plume emissions]]
+
|Geert Vinken (Eindhoven)
+
|Delivered to GCST, slated for v9-01-03
+
|-
+
|[[Secondary_organic_aerosols#SOA_simulation_with_semi-volatile_POA|Expanded SOA]]
+
|Havala Pye (EPA/ORD)
+
|Delivered to GCST; slated for v9-01-03
+
|-
+
|[[Stratospheric_chemistry|Stratospheric P and k (monthly climatological)]]
+
|Lee Murray (Harvard)
+
|Code is ready (awaiting delivery to GCST); slated for v9-01-03
+
|-
+
|[[EPA/NEI05_North_American_emissions|EPA/NEI2005 Hg emissions for US]]
+
|Lyatt Jaeglé (U. Washington)
+
|Code is ready, slated for v9-01-03
+
|-
+
|Satellite-based NOx emission trends
+
|Lok Lamsal (NASA GSFC)
+
|Delivered to GCST, slated for v9-01-03
+
|-
+
|Streets future Hg emissions
+
|Bess Corbitt (Harvard)
+
|Code is ready, slated for v9-01-03
+
|-
+
|Hg(II) gas-aerosol partitioning
+
|Helen Amos (Harvard)
+
|Code is ready, slated for v9-01-03
+
|-
+
|Nested-grid Hg simulation
+
|Lyatt Jaeglé (U. Washington)
+
|Delivered to GCST; slated for v9-01-03
+
|-
+
|Nested-grid CO2 simulation
+
|Yuxuan Wang (Tsinghua U.)
+
|Delivered to GCST; slated for v9-01-03
+
|-
+
|[[Sources_and_Sinks_Working_Group#Available_Historical_and_Future_Emissions|Historical emission inventories of SO2, NOx, BC, and POA]]
+
|Eric Leibensperger (MIT)
+
|Delivered to GCST, slated for v9-01-03
+
|-
+
|}
+
  
--[[User:Bmy|Bob Y.]] 11:59, 28 November 2011 (EST)
+
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Patch version in development
 +
!width="200px"|Major version in development
  
=== Ready to go in ===
+
|-valign="top"
 +
|align="center"| -
 +
|align="center"|'''[[GEOS-Chem 14.0.0]]'''
  
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="400px"|Item
 
!Author(s)
 
!Status
 
|-
 
|[[Updating_standard_chemistry_with_JPL_10-6|Inorganic chemistry updates]]
 
|Mat Evans (Leeds)
 
|Delivered to GCST; awaiting implementation
 
|-
 
|[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]]
 
|Rynda Hudman (UC Berkeley)
 
|Delivered to GCST, awaiting implementation
 
|-
 
|Methyl peroxy nitrate (MPN) chemistry
 
|Ellie Browne (UC Berkeley)
 
|Delivered to GCST, awaiting implementation
 
|-
 
|[[Mineral_dust_aerosols#Surface_chemistry_on_dust|Acid uptake on dust aerosols]]
 
|T. Duncan Fairlie (NASA/LARC)
 
|Delivered to GCST, awaiting implementation
 
|-
 
|Replacing [[Implementation_of_RETRO_Anthropogenic_Emissions|RETRO C2H6 emissons]] with emissions from the C2H6 offline simulation
 
|Yaping Xiao (UNH)
 
|Awaiting implementation
 
|-
 
 
|}
 
|}
  
--[[User:Melissa Payer|Melissa Payer]] 15:36, 23 November 2011 (EST)
+
== Feature integration in progress ==
  
=== Almost there (< 6 months) ===
+
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.
  
{| border=1 cellspacing=0 cellpadding=5
+
{| border=1 cellspacing=0 cellpadding=5  
|- bgcolor="#cccccc"
+
|-bgcolor="#CCCCCC"
!width="400px"|Item
+
!width="200px"|Feature
!Author(s)
+
!width="200px"|Contributor(s)
!Status
+
!width="100px"|Model scope
|-
+
!width="100px"|Ease of implementation
|[[Aircraft_emissions#FAA_aircraft_emissions_inventory|FAA/AEDT aircraft emissions inventory]]
+
!width="300px"|Notes and References
|Steven Barrett et al (MIT)
+
 
|Code delivered to [[GEOS-Chem Support Team|GCST]], on hold
+
 
|-
+
|-valign="top"
|Longwave & shortwave RF codes for chemistry-climate
+
|TOMAS in GCHP
|Fangqun Yu (SUNY Albany)
+
|Betty Croft (WashU)
 +
|Aerosols
 +
|Simple
 
|
 
|
|-
+
*[https://github.com/geoschem/GCHP/pull/221 geoschem/GCHP PR #221]
|[[APM aerosol microphysics|APM]] capability for nested grid
+
*[https://github.com/geoschem/geos-chem/pull/1261 geoschem/geos-chem PR #1261]
|Fangqun Yu (SUNY Albany)
+
*[https://github.com/geoschem/HEMCO/pull/145 geoschem/HEMCO PR #145]
|
+
 
|-
+
|-valign="top"
|[[TOMAS aerosol microphysics|TOMAS]] capability for nested grid
+
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option) / KPP 3.0.0
|Jeff Pierce (Dalhousie)
+
|Mike Long (Harvard) <br> Haipeng Lin (Harvard) <br> Bob Yantosca (GCST) <br> Lu Shen (PKU)
|  
+
|Chemistry
|-
+
|Complicated
|Update to EDGAR 4 anthropogenic emissions
+
|Qiang Zhang (Tsinghua)
+
|  
+
|-
+
|Interannual lightning
+
|Lee Murray (Harvard)
+
 
|
 
|
|-
+
*Lin, H., M.S. Long, R. Sander, R.M. Yantosca, L.A. Estrada, L. Shen, and D.J. Jacob, An adaptive auto-reduction solver for speeding up integration of chemical kinetics in atmospheric chemistry models: implementation and evaluation in the Kinetic Pre-Processor (KPP) version 3.0.0, submitted to JAMES,  https://doi.org/10.31223/X5505V, 2022.
|Primary marine OA emissions
+
|-valign="top"
|Kateryna Lapina (CSU)
+
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation via KPP]
|
+
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)<br>Mike Long (Harvard)
|-
+
|Specialty simulation
|Implement GISS advection scheme for GISS-driven applications
+
|Medium
|[[GEOS-Chem Support Team]]
+
|
+
|-
+
|[[Bromine chemistry mechanism|Tropospheric bromine chemistry]]
+
|Justin Parrella (Harvard)
+
|
+
|-
+
|Updated [[Dicarbonyls simulation|dicarbonyl simulation]]
+
|May Fu (Peking U.)
+
|
+
|-
+
|Satellite diagnostic for XCO2
+
|Liang Feng (U. Edinburgh)
+
|
+
|-
+
|Cloudwater pH for sulfate formation
+
|Becky Alexander (U. Washington)
+
|Code is ready, pending paper acceptance
+
|-
+
|Tagged sulfate and nitrate simulation
+
|Becky Alexander (U. Washington)
+
|
+
|-
+
|Improve temporal resolution of anthropogenic CO2 sources
+
|Ray Nassar (Environment Canada)
+
|
+
|-
+
|Replace existing regridding routines with the MAP_A2A regridding package
+
|Matt Cooper (Dalhousie)
+
 
|
 
|
|-
+
*[https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
|}
+
  
--[[User:Melissa Payer|Melissa Payer]] 15:17, 6 October 2011 (EDT)
+
|-valign="top"
 +
|RO2 diagnostic
 +
|Melissa Sulprizio (Harvard)
 +
|Diagnostics
 +
|Simple
 +
|
  
=== Over the horizon (6-12 months) ===
+
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/770 Output satellite diagnostics as NetCDF]
 +
|Eloise Marais (UCL)
 +
|Diagnostics
 +
|Simple
 +
|
 +
*See [https://github.com/geoschem/geos-chem/pull/1134 geoschem/geos-chem #1134]
  
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
|- bgcolor="#cccccc"
+
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
!width="400px"|Item
+
|Melissa Sulprizio (Harvard)
!Author(s)
+
|Emissions
!Status
+
|Simple
|-
+
|Update HCN simulation
+
|Qian Li (U. Edinburgh)<br>Dylan Jones (U. Toronto)
+
|
+
|-
+
|Working with [[GEOS-5.7.2|GEOS-5.7.2]]
+
|[[GEOS-Chem Support Team]]
+
|Development is ongoing
+
|-
+
|Nested-grid model at 0.25&deg; x 0.3125&deg; resolution
+
|Yuxuan Wang (Tsinghua)
+
|
+
|-
+
|High-resolution emissions for above nested-grid model
+
|Yuxuan Wang (Tsinghua)
+
|
+
|-
+
|Improved planeflight diagnostic
+
|Mat Evans (Leeds)
+
|
+
|-
+
|Chemistry diagnostics
+
|Mat Evans (Leeds)
+
|
+
|-
+
|Improved operator splitting
+
|Mauricio Santillana (Harvard)
+
|Development is ongoing
+
|-
+
|3-D VOC source for [[Tagged_CO_simulation|tagged CO simulations]]
+
|Dylan Jones (U. Toronto)
+
|
+
|-
+
|Move to 2&deg; x 2.5&deg; versions of GISS GCM ModelE and Model3
+
|Loretta Mickley (Harvard)
+
|For more information, please see the [http://acmg.seas.harvard.edu/geos/word_pdf_docs/steering_cmte/stercomm.telecon.ltmurray.GISS.pdf GISS Model E Memo]<br>by (Lee Murray and Loretta Mickley).
+
|-
+
|Implement IPCC AR5 scenarios
+
|Loretta Mickley (Harvard)
+
 
|
 
|
|-
+
 
|Improved dust simulation in nested-grid model
+
|-valign="top"
|Rokjin Park (Seoul Nat'l Univ.)
+
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx]
 +
|Lee Murray (Rochester)
 +
|Emissions
 +
|Simple
 
|
 
|
|-
+
 
|Isoprene chemistry
+
|-valign="top"
|Mat Evans (Leeds)<br>Jingqiu Mao (NOAA/GFDL)
+
|[https://github.com/geoschem/geos-chem/discussions/1022 Add new species concentration diagnostic in units of molec/cm3]
|Paper is in progress
+
|Haipeng Lin (Harvard)
|-
+
|Diagnostics
|Unified emissions pre-processor
+
|Simple
|Qiang Zhang (Tsinghua)
+
|
+
|-
+
|Update Asian emissions
+
|Qiang Zhang (Tsinghua)
+
|
+
|-
+
|Improve ocean CO2 flux
+
|Ray Nassar (Environment Canada)<br>Kevin Bowman (JPL)
+
|
+
|-
+
|CESM/CAM5 interface for chemistry-climate
+
|Rokjin Park (Seoul Nat'l Univ.)<br>Joshua Fu (U. Tennessee)
+
|  
+
|-
+
|Standardize the two-film parameterization of air-sea exchange
+
|[[Hg and POPs Working Group]]
+
 
|
 
|
|-
+
*See [https://github.com/geoschem/geos-chem/pull/1264 geoschem/geos-chem PR #1264]
|}
+
  
--[[User:Melissa Payer|Melissa Payer]] 11:16, 2 December 2011 (EST)
+
|-valign="top"
 +
|Identify and remove memory leaks and similar issues
 +
|Bob Yantosca (Harvard)
 +
|Structural
 +
|Medium
 +
|
 +
*See [https://github.com/geoschem/geos-chem/pull/1353 github.com/geos-chem PR #1353]
  
=== Longer term (> 12 months)===
+
|-valign="top"
 +
|Update transport tracer simulation for consistency with the tracer gridded component in GEOS
 +
|Melissa Sulprizio (Harvard)
 +
|TransportTracer simulation
 +
|Simple
 +
|
 +
 
 +
|-valign="top"
 +
|Bug fix for GFAS in GCHP
 +
|Lizzie Lundgren (Harvard)
 +
|GCHP
 +
|Simple
 +
|
 +
 
 +
|-valign="top"
 +
|Use pointers to internal state for species arrays in GCHP/GEOS
 +
|Lizzie Lundgren (Harvard)
 +
|GCHP/GEOS
 +
|Medium
 +
|
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1274 Revision to a rate constant for the C2H4 scheme]
 +
|Kelvin Bates (Harvard)
 +
|Chemistry
 +
|Easy
 +
|
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1298 Fix product in HOBr/Cl + S(IV) reactions]
 +
|Xuan Wang (CUHK)
 +
|Chemistry
 +
|Easy
 +
|
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1235 Add MO2 + NO3 reaction]
 +
|Kelvin Bates (Harvard)
 +
|Chemistry
 +
|Easy
 +
|
  
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="400px"|Item
 
!Author(s)
 
!Status
 
|-
 
|[[Grid-independent GEOS-Chem]]
 
|[[GEOS-Chem Support Team]]
 
|Development is ongoing
 
|-
 
|Improved atmospheric-ocean-land coupling of Hg simulation
 
|[[Hg and POPs Working Group]]
 
|
 
|-
 
|Primary biological aerosol particles (PBAP's)
 
|Colette Heald (Colo. State)
 
|Only to be implemented if users identified
 
|-
 
|Unified radiative forcing module for GEOS-Chem
 
|[[Aerosols_overview:_projects_and_developments|Aerosols Working Group]]
 
|Under discussion/investigation
 
|-
 
|Effective meteorolgical fields for dust and sea-salt emissions
 
|[[GEOS-Chem Support Team]]
 
|
 
|-
 
|Dust simulation expansion; tagged simulation, oxalate, Fe, P
 
|Matthew Johnson (NCSU)
 
|
 
|-
 
|Benchmark for aerosol deposition
 
|Colette Heald (Colo. State)
 
|TBD
 
|-
 
|Read emission data at native resolution and regrid on the fly
 
|[[GEOS-Chem Support Team]]
 
|
 
|-
 
|Link column version of GEOS-Chem with GEOS-GCM for chemistry-climate
 
|[[GEOS-Chem Support Team]]
 
|
 
|-
 
|CO2 inhibition effect for isoprene emission
 
|Loretta Mickley (Harvard)
 
|
 
|-
 
|Replace CASA CO2 biosphere climatology with year-specific fluxes
 
|Ray Nassar (Environment Canada)<br>Dylan Jones (U. Toronto)
 
|TBD
 
|-
 
 
|}
 
|}
  
--[[User:Melissa Payer|Melissa Payer]] 15:17, 6 October 2011 (EDT)
+
== Delivered and in the queue ==
  
=== Items no longer being worked on===
+
Features listed in this table have been delivered to the GEOS-Chem Support Team and are prioritized to be integrated 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="300px"|Notes and References
 +
 
 +
|-valign="top"
 +
|[https://doi.org/10.34894/SZ2KOI AMAP 2015 emissions from GMA2018]
 +
|Helene Angot(MIT)<br>Ari Feinberg (MIT)<br>Noelle Selin (MIT)
 +
|Hg simulation
 +
|Simple
 +
|
 +
* Delivered to GCST (Jul 2022)
 +
 
 +
|-valign="top"
 +
|[https://pubs.rsc.org/en/content/articlehtml/2022/em/d2em00032f Improvements in modelled Hg0 dry deposition to land]
 +
|Ari Feinberg (MIT)<br>Noelle Selin (MIT)<br>Thandolwethu Dlamini (MIT)<br>Martin Jiskra (UBasel)<br>Viral Shah (Harvard)
 +
|Hg simulation
 +
|Simple
 +
|
 +
* See [https://github.com/geoschem/geos-chem/pull/1367 geoschem/geos-chem PR #1367]
 +
* The study is already published and could be incorporated into the standard model as a default. Some tweaking to the reduction rate may be required as the model halogen oxidation has also been updated in v13.4.
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1301 HTAPv3 at 0.1 deg]
 +
|Dandan Zhang (WashU)
 +
|Emissions
 +
|Simple
 +
|
 +
*Delivered to GCST (Jul 2022)
  
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="400px"|Item
 
!Author(s)
 
!Status
 
|-
 
|Fix of global OH diagnostic
 
|Mat Evans (Leeds)<br>Jingqiu Mao (NOAA/GFDL)
 
|This is no longer an issue after the [[Restart_files#Potential_issue_with_reading_restart.cspec_file|CSPEC restart bug fix]] in v9-01-02 (awaiting release).
 
|-
 
|Updated diurnal variation of US NEI emissions
 
|Rynda Hudman (UC Berkeley)
 
|
 
|-
 
 
|}
 
|}
  
--[[User:Melissa Payer|Melissa Payer]] 15:17, 6 October 2011 (EDT)
+
== Delivered but not yet prioritized ==
  
== List of priorities identified at IGC5 ==
+
Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integration into GEOS-Chem.
  
This is a list of planned GEOS-Chem model development items, based on discussions and Working Group reports from the  and [http://acmg.seas.harvard.edu/geos/geos_meeting_2011.html 5th International GEOS-Chem Meeting] (aka '''IGC5''').  The key model developer or model contact is identified for each item. 
+
{| 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
  
We count on user input to augment and prioritize this list, please contact your [http://acmg.seas.harvard.edu/geos/geos_working_groups.html Working Group Chair] or model scientist [mailto:djacob@fas.harvard.edu Daniel Jacob].
+
|-valign="top"
 +
|Tagged O3 simulation in GCHP
 +
|Xingpei Yu (PKU)<br>Jourdan He (WashU)
 +
|TagO3 simulation
 +
|Simple
 +
|
 +
*[https://github.com/geoschem/geos-chem/pull/1167 geoschem/geos-chem PR #1167]
 +
* Needs to be updated to a more recent version of GCHP
  
=== For immediate implementation (awaiting release) ===
+
|-valign="top"
 +
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
 +
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
 +
|Emissions
 +
|Simple
 +
|
 +
*Delivered to GCST (Jul 2022)
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
 +
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 +
|Science
 +
|Simple
 +
|
 +
*Delivered to GCST (Feb 2021)
 +
* [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
 +
 
 +
|-valign="top"
 +
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
 +
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
 +
|Emissions
 +
|Simple
 +
|
 +
*Data files delivered to GCST (July 2021)
 +
*Data are quite large - need to think about storage, compression
 +
 
 +
|-valign="top"
 +
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
 +
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
 +
|Chemistry
 +
|Medium
 +
|
 +
*Delivered to GCST (Jun 2020)
  
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="400px"|Item
 
!Author(s)
 
!Status
 
|-
 
|[[APM aerosol microphysics]]
 
|Fangqun Yu (SUNY Albany)
 
|Added to [[GEOS-Chem v9-01-02|v9-01-02]]; awaiting release
 
|-
 
|[[Biomass_burning_emissions#GFED3|GFED3 biomass burning]]
 
|Prasad Kasibhatla (Duke)
 
|Added to v9-01-02; awaiting release
 
|-
 
|[[Aircraft_emissions#FAA_aircraft_emissions_inventory|FAA/AEDT aircraft emissions inventory]]
 
|Steven Barrett et al (MIT)
 
|
 
|-
 
|[[Dry_deposition#Aerosol_dry_deposition_velocities_over_snow_and_ice_surfaces|Aerosol deposition over snow/ice]]
 
|Jenny Fisher (Harvard)
 
|Added to v9-01-02; awaiting release
 
|-
 
|[[Anthropogenic_emissions#Streets_2000|Seasonal variation of Asian NH3 emissions]]
 
|Jenny Fisher (Harvard)
 
|Added to v9-01-02; awaiting release
 
|-
 
|[[GEOS-Chem_v9-01-02#Aerosol_optical_depth|Cleanup of AOD diagnostics]]
 
|Sungshik Patrick Kim (Harvard)
 
|Added to v9-01-02; awaiting release
 
|-
 
|[[Implementation_of_RETRO_Anthropogenic_Emissions|RETRO anthropogenic VOC emissions]]
 
|Dylan Millet (U. Minnesota)
 
|Added to v9-01-02; awaiting release
 
|-
 
 
|}
 
|}
  
--[[User:Bmy|Bob Y.]] 15:56, 23 August 2011 (EDT)
+
== Ready but not delivered ==
  
=== Ready to go in ===
+
Features listed in this table are ready but have not been delivered to the GEOS-Chem Support Team.
  
{| border=1 cellspacing=0 cellpadding=5
+
{| border=1 cellspacing=0 cellpadding=5  
|- bgcolor="#cccccc"
+
|-bgcolor="#CCCCCC"
!width="400px"|Item
+
!width="200px"|Feature
!Author(s)
+
!width="200px"|Contributor(s)
!Status
+
!width="100px"|Model scope
|-
+
!width="300px"|Notes and References
|Nested-grid Hg simulation
+
 
|Lyatt Jaegl&eacute; (U. Washington)
+
|-valign="top"
|  
+
|Updating VOC fire emissions and adding lumped furan
|-
+
|Colette Heald (MIT)<br>Jessica Haskins (MIT)
|Nested-grid CO2 simulation
+
|Chemistry
|Yuxuan Wang (Tsinghua U.)
+
|
|  
+
* Carter, T. S., Heald, C. L., Kroll, J. H., Apel, E. C., Blake, D., Coggon, M., Edtbauer, A., Gkatzelis, G., Hornbrook, R. S., Peischl, J., Pfannerstill, E. Y., Piel, F., Reijrink, N. G., Ringsdorf, A., Warneke, C., Williams, J., Wisthaler, A., and Xu, L.: An Improved Representation of Fire Non-Methane Organic Gases (NMOGs) in Models: Emissions to Reactivity, Atmos. Chem. Phys. Discuss. [preprint], https://doi.org/10.5194/acp-2022-438, in review, 2022.
|-
+
 
|Stratospheric P and k (monthly climatological)
+
|-valign="top"
|Lee Murray (Harvard)
+
|Nitrate photolysis
|  
+
|Viral Shah (NASA GMAO)
|-
+
|Chemistry
|Inorganic chemistry updates
+
|
|Mat Evans (Leeds)
+
* Shah, V., D.J. Jacob, R. Dang, L.N. Lamsal, S.A. Strode, S.D. Steenrod, K.F. Boersma, S.D. Eastham, T.M. Fritz, C. Thompson, J. Peischl, I. Bourgeois, I.B. Pollack, B.A. Nault, R.C. Cohen, P. Campuzano-Jost, J.L. Jimenez, S.T. Andersen, L.J. Carpenter, T. Sherwen, and M.J. Evans, Nitrogen oxides in the free troposphere: Implications for tropospheric oxidants and the interpretation of satellite NO2 measurements, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2022-656, 2022.
|  
+
 
|-
+
|-valign="top"
|GEIA 2005 Hg emissions
+
|Online H2 chemistry
|Bess Corbitt (Harvard)
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
|Delivered to GCST
+
|Chemistry
|-
+
|
|[[Secondary_organic_aerosols#SOA_simulation_with_semi-volatile_POA|Expanded SOA]]
+
 
|Havala Pye (EPA/ORD)
+
|-valign="top"
|Delivered to [[GEOS-Chem Support Team|GCST]], undergoing final testing
+
|Alk4 & R4N2 chemistry
|-
+
|Jared Brewer (Harvard)
|Dust submicron size distribution for optics
+
|Chemistry
|David Ridley (Colo. State)
+
|
|  
+
* Brewer, J.F., D.J. Jacob, S.H. Jathar, Y. He, A. Akherati, S. Zhai, D.S. Jo, A. Hodzic, B.A. Nault, P. Campuzano-Jost, J.L. Jimenez, R.J. Park, Y.J. Oak, and H. Liao, A scheme for representing aromatic secondary organic aerosols in chemical transport models: application to source attribution of organic aerosols over South Korea during the KORUS-AQ campaign, submitted to J. Geophys. Res., 2022.
|-
+
 
|[[Carbon Gases and Organics Working Group#GEIA anthropogenic scaling factors|GEIA emissions scale factor fix]]
+
|-valign="top"
|Dylan Millet (U. Minnesota)
+
|Organic acids (RCOOH)
|Added to [[GEOS-Chem v9-01-02|v9-01-02]]; awaiting release
+
|Katie Travis (NASA)
|-
+
|Chemistry
|Longwave & shortwave RF codes for chemistry-climate
+
|
|Fangqun Yu (SUNY Albany)
+
 
|  
+
|-valign="top"
|-
+
|Update reactions with new JPL & IUPAC recommendations
|Improved sea salt [[Sea salt aerosols#SST dependent sea salt emissions|emission]] & [[Sea salt aerosols#Updates to sea salt dry deposition|deposition]]
+
|Kelvin Bates (Harvard)
|Lyatt Jaegl&eacute; (U. Washington)
+
|Chemistry
|Code delivered to [[GEOS-Chem Support Team|GCST]], awaiting implementation
+
|
|-
+
* Currently running simulations to check magnitude of changes
|Improved snow scavenging and washout parameterization
+
 
|Qiaoqiao Wang (Harvard)
+
|-valign="top"
|  
+
|Improve carbon & nitrogen conservation in reactions
|-
+
|Kelvin Bates (Harvard)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Blowing snow sea salt in TOMAS
 +
|Betty Croft (Dalhousie)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Geologic emission of ethane and propane
 +
|Matthew Rowlinson and Mat Evans(York)
 +
|Emissions
 +
|
 +
* Global source from https://doi.org/10.1038/s41561-018-0073-0 with spatial distribution from https://doi.org/10.5194/essd-11-1-2019
 +
 
 +
|-valign="top"
 +
|New version of CEDS at 0.1 deg
 +
|Emma Knowland (NASA)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
 +
|Shixian Zhai (Harvard)
 +
|Emissions
 +
|
 +
* Need permission from Qiang Zhang (Tsinghua U.) to distribute data
 +
 
 +
|-valign="top"
 +
|KORUS-AQ emissions for East Asia
 +
|Katie Travis (NASA)
 +
|Emissions
 +
|
 +
* Need permission to distribute data
 +
 
 +
|-valign-"top"
 +
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
 +
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign-"top"
 +
|WRF-GC Hg simulation
 +
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation<br>WRF-GC
 +
|
 +
 
 +
|-valign="top"
 +
|Updated HgII gas-partical partitioning
 +
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
 +
|Hg simulation
 +
|
 +
* Should be option, not default
 +
 
 +
|-valign="top"
 +
|Dry deposition to F90 (readability)
 +
|Chris Holmes (FSU)
 +
|Dry deposition
 +
|
 
|}
 
|}
  
--[[User:Bmy|Bob Y.]] 11:04, 30 August 2011 (EDT)
+
== Almost there (< 6 months) ==
  
=== Almost there (< 6 months) ===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
  
{| border=1 cellspacing=0 cellpadding=5
+
{|border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
!width="400px"|Item
+
!width="200px"|Feature
!Author(s)
+
!width="200px"|Contributor(s)
!Status
+
!width="100px"|Model scope
|-
+
!width="420px"|Notes and References
|[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]]
+
 
|Rynda Hudman (UC Berkeley)
+
 
|Code delivered to [[GEOS-Chem Support Team|GCST]], awaiting implementation
+
|-valign="top"
|-
+
|DMS Chemistry
|[[APM aerosol microphysics|APM]] capability for nested grid
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
|Fangqun Yu (SUNY Albany)
+
|Chemistry
|  
+
|
|-
+
 
|[[TOMAS aerosol microphysics|TOMAS]] capability for nested grid
+
|-valign="top"
|Jeff Pierce (Dalhousie)
+
|PPN+hv, PPN+OH
|  
+
|Robert Ryan (UCL)
|-
+
|Chemistry
|Fix of global OH diagnostic
+
|
|Mat Evans (Leeds)<br>Jingqiu Mao (NOAA/GFDL)
+
 
|  
+
|-valign="top"
|-
+
|MBO
|Chemical updates for atmospheric Hg
+
|Michael Vermeuel (UMN)
|Bess Corbitt (Harvard)<br>Jenny Fisher (Harvard)
+
|Chemistry
|  
+
|
|-
+
 
|Streets future Hg emissions
+
|-valign="top"
|Bess Corbitt (Harvard)
+
|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]
|  
+
|Seb Eastham (MIT)
|-
+
|Science
|[[EPA/NEI05_North_American_emissions|EPA/NEI2005 Hg emissions for US]]
+
|
|Lyatt Jaegl&eacute; (U. Washington)
+
 
|  
+
|-valign="top"
|-
+
|Re-binning of off-line sea salt and dust for use in TOMAS
|Hg(II) gas-aerosol partitioning
+
|Betty Croft (Dalhousie)
|Helen Amos (Harvard)
+
|Aerosols
|  
+
|
|-
+
 
|Update to EDGAR 4 anthropogenic emissions
+
|-valign="top"
|Qiang Zhang (Tsinghua)
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
|  
+
|Betty Croft (Dalhousie)
|-
+
|Aerosols
|Updated diurnal variation of US NEI emissions
+
|
|Rynda Hudman (UC Berkeley)
+
 
|  
+
|-valign="top"
|-
+
|ML algorithms for bulk aerosols
|Satellite-based NOx emission trends
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
|Lok Lamsal (NASA GSFC)
+
|Aerosols
|  
+
|
|-
+
 
|PARANOX ship plume emissions
+
|-valign="top"
|Geert Vinken (Eindhoven)
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
|  
+
|Shixian Zhai (Harvard)
|-
+
|Aerosols
|Interannual lightning
+
|
|Lee Murray (Harvard)
+
 
|  
+
|-valign="top"
|-
+
|Updates to Hodzic SOA scheme
|Primary marine OA emissions
+
|Jared Brewer (Harvard)
|Kateryna Lapina (CSU)
+
|Aerosols
|  
+
|
|-
+
 
|Complete shift of biogenic VOC emissions from GEIA to MEGAN; retire GEIA
+
|-valign="top"
|Dylan Millet (U. Minnesota)
+
|Automated reduction in isoprene scheme
|Slated for [[GEOS-Chem v9-01-03|v9-01-03]]
+
|Dan Westervelt (Lamont-Doherty)
|-
+
|Aerosols
|Update HCN simulation
+
|
|Qian Li (U. Edinburgh)<br>Dylan Jones (U. Toronto)
+
 
|  
+
|-valign="top"
|-
+
|Brown carbon chemsitry
|Implement GISS advection scheme for GISS-driven applications
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
|[[GEOS-Chem Support Team]]
+
|Aerosols
|  
+
|
|-
+
 
 +
 
 +
|-valign="top"
 +
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
 +
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
 +
|Convection
 +
|
 +
 
 +
|-valign="top"
 +
|Update surface methane boundary condition using NOAA flask data
 +
|Lee Murray (Rochester)
 +
|Input data
 +
|
 +
 
 +
|-valign="top"
 +
|Provide recommended rather than hard-coded scaling factors for online emissions
 +
|Melissa Sulprizio (Harvard)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
 +
|Jintai Lin (PKU)
 +
|Emissions
 +
|Horizontal resolution: 5km, temporal resolution: JJA mean (monthly data will be available at a later stage; please contact us).
 +
 
 +
|-valign="top"
 +
|Updated biomass burning emission factors and species
 +
|Tess Carter (MIT)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Updated offline sea salt emissions
 +
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|HgII deposition too high in 13.4; Hg0 conc too low; should not use as is
 +
|Viral Shah (NASA GMAO)<br>Yanxu Zhang (Nanjing U.)<br>Ari Feinberg (MIT)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
 +
|Sam Silva (MIT)
 +
|Emissions &<br>Science
 +
|
 +
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
 +
*Needs to be updated to a more recent GEOS-Chem version
 +
 
 +
|-valign="top"
 +
|Gridded EPA (GEPA) version 2 emissions for 2012-2018
 +
|Bram Maasakkers (SRON)<br>Erin McDuffie (WashU),<br>Melissa Sulprizio (Harvard)
 +
|Emissions<br>CH4 simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Reduce dimension of analytical inversion
 +
|Hannah Nesser (Harvard)
 +
|Adjoint capability
 +
|
 +
 
 +
|-valign="top"
 +
|Retire all BPCH diagnostics
 +
|Bob Yantosca (Harvard)
 +
|Diagnostics
 +
|
 +
 
 +
|-valign="top"
 +
|GEOS-Chem in CESM 2.3
 +
|Lizzie Lundgren (Harvard)
 +
|Interfacing with ESMs
 +
|
 +
 
 +
|-valign="top"
 +
|Assess memory leak in GCHP
 +
|Killian Murphy (York)
 +
|Model performance
 +
|
 +
 
 +
|-valign="top"
 +
|Point to internal state for species mixing ratios in GCHP and GEOS
 +
|Lizzie Lundgren (Harvard)<br>Christoph Keller (NASA)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Assess precision in GCHP internal state - use R4 for some?
 +
|Lizzie Lundgren (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Hybrid MPI-OpenMP in GCHP
 +
|Seb Eastham (MIT)<br>Killian Murphy (York)
 +
|Model performance
 +
|
 +
 
 +
|-valign="top"
 +
|Convert HEMCO input files to YAML
 +
|Melissa Sulprizio (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Allow easy disabling of HEMCO emissions for testing
 +
|Melissa Sulprizio (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Improve run directory templating and creation with init_rd.sh and shared directories
 +
|Jourdan He (WashU)
 +
|Run directories
 +
|
 +
 
 +
|-valign="top"
 +
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
 +
|GCST?
 +
|Documentation
 +
|
 +
 
 +
|-valign="top"<
 +
|Upgrade Fast-JX to Cloud-J
 +
|Lizzie Lundgren (Harvard)
 +
|Structural
 +
|
 +
 
 
|}
 
|}
  
--[[User:Bmy|Bob Y.]] 11:10, 6 June 2011 (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
!Author(s)
+
!width="200px"|Contributor(s)
!Status
+
!width="100px"|Model scope
|-
+
!width="420px"|Notes and References
|Working with [[GEOS-5.7.2|GEOS-5.7.2]]
+
 
|[[GEOS-Chem Support Team]]
+
|-valign="top"
|Ongoing
+
|Snow / Icy Bromine
|-
+
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
|Nested-grid model at 0.25&deg; x 0.3125&deg; resolution
+
|Chemistry
|Yuxuan Wang (Tsinghua)
+
|
+
|-
+
|High-resolution emissions for above nested-grid model
+
|Yuxuan Wang (Tsinghua)
+
|
+
|-
+
|[[Acetone|Improved acetone simulation]]
+
|Emily Fischer (Harvard)
+
|Slated for inclusion in [[GEOS-Chem v9-01-03|v9-01-03]]
+
|-
+
|[[Bromine chemistry mechanism|Tropospheric bromine chemistry]]
+
|Justin Parrella (Harvard)
+
|
+
|-
+
|OVOC's dry deposition
+
|Jingqiu Mao (NOAA/GFDL)
+
|
+
|-
+
|Improved planeflight diagnostic
+
|Mat Evans (Leeds)
+
|
+
|-
+
|Chemistry diagnostics
+
|Mat Evans (Leeds)
+
|
+
|-
+
|Documentation of chemical mechanism
+
|Jingqiu Mao (NOAA/GFDL)
+
|
+
|-
+
|[[DSMACC_chemical_box_model|Box model]] version of GEOS-Chem chemical mechanism
+
|Jingqiu Mao (NOAA/GFDL)
+
|
+
|-
+
|Improved operator splitting
+
|Mauricio Santillana (Harvard)
+
|
+
|-
+
|Updated [[Dicarbonyls simulation|dicarbonyl simulation]]
+
|May Fu (Peking U.)
+
|
+
|-
+
|3-D VOC source for [[Tagged_CO_simulation|tagged CO simulations]]
+
|Dylan Jones (U. Toronto)
+
|
+
|-
+
|Replace CASA CO2 biosphere climatology with year-specific fluxes
+
|Ray Nassar (Environment Canada)<br>Dylan Jones (U. Toronto)
+
|
+
|-
+
|Satellite diagnostic for XCO2
+
|Liang Feng (U. Edinburgh)
+
|
+
|-
+
|Move to 2&deg; x 2.5&deg; versions of GISS GCM ModelE and Model3
+
|Loretta Mickley (Harvard)
+
|For more information, please see the [http://acmg.seas.harvard.edu/geos/word_pdf_docs/steering_cmte/stercomm.telecon.ltmurray.GISS.pdf GISS Model E Memo]<br>by (Lee Murray and Loretta Mickley).
+
|-
+
|Implement IPCC AR5 scenarios
+
|Loretta Mickley (Harvard)
+
 
|
 
|
|-
+
 
|CO2 inhibition effect for isoprene emission
+
|-valign="top"
|Loretta Mickley (Harvard)
+
|Monoterpene oxidation scheme
|  
+
|Jessica Haskins (MIT)
|-
+
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Fire related VOCs including furans
 +
|Lu Hu (UMT)<br>Lixu Jin (UMT)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Extension of UCX into the mesosphere
 +
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Methane flux ingestion
 +
|Eloise Marais (UCL)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Parameterized effective radius
 +
|Haihui Zhu (WashU)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Dust non-sphericity impacts on surface chem and optical properties
 +
|Inderjeet Singh (WashU)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Size-resolved stratospheric aerosol
 +
|Seb Eastham (MIT)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Extend aerosol settling
 +
|Eloise Marais (UCL)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Stratospheric aerosol APM
 +
|Fangqun Yu (SUNY)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Plume-in-grid model
 +
|Hongwei Sun (Harvard)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
 +
|Lee Murray (Rochester)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Seb aircraft emissions beyond recent 2019 update
 +
|Seb Eastham (MIT)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|FRP-based fire emsisions for eastern US at 0.2 deg
 +
|Charlie Fite (FSU)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Hg iodine chemistry
 +
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Hg simulation in GCHP
 +
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
 +
|Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Dry deposition diagnostics by land cover
 +
|Holly Nowell (FSU)
 +
|Diagnostics
 +
|
 +
 
 +
|-valign="top"
 +
|Dry deposition process diagnostics
 +
|Holly Nowell (FSU)
 +
|Diagnostics
 +
|
 +
 
 +
|-valign="top"
 +
|Isotope simulation for CO and CH4 in GCHP
 +
|Lee Murray (Rochester)
 +
|Carbon simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
 +
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
 +
|Emissions<br>CH4 simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Separate mixing and emissions
 +
|Bob Yantosca (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Modularization of aerosols code for interface with GOCART in GEOS
 +
|Christoph Keller (GMAO)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
 +
|Bob Yantosca (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Improve load balancing in GCHP
 +
|Seb Eastham (MIT)
 +
|Model performance
 +
|
 +
 
 +
|-valign="top"
 +
|Update to MAPL 3 in GCHP, including replacement of ExtData.rc with YAML file
 +
|Lizzie Lundgren (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
 +
|Bob Yantosca (Harvard)
 +
|Model performance
 +
|
 +
 
 +
|-valign="top"
 +
|Limit allocation of State_Met to what is needed per simulation
 +
|Melissa Sulprizio (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Make frequency of HEMCO restart file configurable
 +
|Melissa Sulprizio (Harvard)
 +
|Diagnostics
 +
|
 +
 
 +
|-valign="top"
 +
|Apply masks/scaling in HEMCO based on input category or flag
 +
|Melissa Sulprizio (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
 +
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
 +
|Transport
 +
|
 +
 
 +
|-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 (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
 +
|Transport
 +
|
 +
 
 +
|-valign="top"
 +
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
 +
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
 +
|Transport
 +
|
 +
 
 
|}
 
|}
  
--[[User:Bmy|Bob Y.]] 11:25, 30 August 2011 (EDT)
+
== Longer term (12-24 months)==
  
=== Longer term (> 12 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
!Author(s)
+
!width="200px"|Contributor(s)
!Status
+
!width="100px"|Model scope
|-
+
!width="420px"|Notes and References
|[[Grid-independent GEOS-Chem]]
+
 
|[[GEOS-Chem Support Team]]
+
 
|Development is ongoing
+
|-valign="top"
|-
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
|Improved dust simulation in nested-grid model
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
|Rokjin Park (Seoul Nat'l Univ.)
+
|Emissions
|
+
|-
+
|Isoprene chemistry
+
|Mat Evans (Leeds)<br>Jingqiu Mao (NOAA/GFDL)
+
|  
+
|-
+
|Improved atmospheric-ocean-land coupling of Hg simulation
+
|[[Hg and POPs Working Group]]
+
|
+
|-
+
|Unified emissions pre-processor
+
|Qiang Zhang (Tsinghua)
+
|
+
|-
+
|Update Asian emissions
+
|Qiang Zhang (Tsinghua)
+
|
+
|-
+
|Primary biological aerosol particles (PBAP's)
+
|Colette Heald (Colo. State)
+
 
|
 
|
|-
+
*See [https://github.com/geoschem/geos-chem/issues/1288 geoschem/geos-chem #1288]
|Unified radiative forcing module for GEOS-Chem
+
*[https://github.com/geoschem/geos-chem/issues/1288#issuecomment-1255103962 NOTE: This feature has been tabled for the time being.]
|[[Aerosols_overview:_projects_and_developments|Aerosols Working Group]]
+
 
 +
|-valign="top"
 +
|Updates to Aromatic chemistry
 +
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
 +
|Chemistry
 
|
 
|
|-
+
 
|Effective meteorolgical fields for dust and sea-salt emissions
+
|-valign="top"
|[[GEOS-Chem Support Team]]
+
|Nitrate photolysis
|  
+
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
|-
+
|Chemistry
|Dust simulation expansion; tagged simulation, oxalate, Fe, P
+
|Matthew Johnson (NCSU)
+
|
+
|-
+
|Cloudwater pH for sulfate formation
+
|Becky Alexander (U. Washington)
+
|  
+
|-
+
|Benchmark for aerosol deposition
+
|Colette Heald (Colo. State)
+
 
|
 
|
|-
 
|Tagged sulfate and nitrate simulation
 
|Becky Alexander (U. Washington)
 
|
 
|-
 
|Read emission data at native resolution and regrid on the fly
 
|[[GEOS-Chem Support Team]]
 
|
 
|-
 
|Improve ocean CO2 flux and resolution of anthropogenic sources
 
|Ray Nassar (Environment Canada)
 
|
 
|-
 
|CESM/CAM5 interface for chemistry-climate
 
|Rokjin Park (Seoul Nat'l Univ.)<br>Joshua Fu (U. Tennessee)
 
|
 
|-
 
|Link column version of GEOS-Chem with GEOS-GCM for chemistry-climate
 
|[[GEOS-Chem Support Team]]
 
|
 
|-
 
|}
 
  
--[[User:Bmy|Bob Y.]] 11:33, 6 June 2011 (EDT)
+
|-valign="top"
 +
|In aerosol chemistry Halogens
 +
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
 +
|Chemistry
 +
|
  
== Items that are now included in GEOS-Chem ==  
+
|-valign="top"
 +
|Benchmark box model of GC Chemistry
 +
|Katie Travis (NASA)
 +
|Chemistry
 +
|
  
Here we list new features that have since been brought into the standard mainline GEOS-Chem code.  Each of these was identified as a priority at the [http://acmg.seas.harvard.edu/geos/geos_meeting_2011.html 5th International GEOS-Chem Meeting] in 2011 (aka '''IGC5''').
+
|-valign="top"
 +
|Alkyl nitrates Alk7, PHAN
 +
|Katie Travis (NASA)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Add stratospheric ozone species to full-chemistry simulations
 +
|Lee Murray (Rochester)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Perchlorate chemistry
 +
|Yuk Chun Chan (UWAB)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Explicit heterogeneous sulfate chemistry
 +
|Katie Travis (NASA)<br>Becky Alexander (UT)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|ISORROPIA-lite
 +
|Becky Alexander (UW)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|HOx and ozone "emissions" from lightning as option in model to play with
 +
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Sea salt aerosol from sea ice leads
 +
|Hannah Horowitz (U. Illinois)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Drought-stress algorithm
 +
|Wei Li (U. Houston)
 +
|
 +
|
 +
 
 +
|-valign="top"
 +
|Biomass burning injection height profiles
 +
|Inderjeet Singh (WashU)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|OCIM integration
 +
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
 +
|
 +
|
 +
 
 +
|-valign="top"
 +
|Updating landcover products in GEOS-Chem
 +
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
 +
|Input data
 +
|
 +
 
 +
|-valign="top"
 +
|Dry deposition physical improvement
 +
|Chris Holmes (FSU)
 +
|Dry deposition
 +
|
 +
 
 +
|-valign="top"
 +
|Extend the IMI system to other trace gases
 +
|Lucas Estrada (Harvard)
 +
|Adjoint capabilities
 +
|
 +
 
 +
 
 +
|-valign="top"
 +
|TOMAS WRF-GC in regional Thailand simulation
 +
|Win Trivitayanurak (Chulalongkorn U)
 +
|Aerosols
 +
|
  
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="400px"|Item
 
!Author(s)
 
!Completion Date
 
|-
 
|[[APM aerosol microphysics]]
 
|Fangqun Yu (SUNY Albany)
 
|28 Nov 2011 ([[GEOS-Chem v9-01-02|v9-01-02]] release)
 
|-
 
|[[Biomass_burning_emissions#GFED3|GFED3 biomass burning]]
 
|Prasad Kasibhatla (Duke)
 
|28 Nov 2011 ([[GEOS-Chem v9-01-02|v9-01-02]] release)
 
|-
 
|[[Dry_deposition#Aerosol_dry_deposition_velocities_over_snow_and_ice_surfaces|Aerosol deposition over snow/ice]]
 
|Jenny Fisher (Harvard)
 
|28 Nov 2011 ([[GEOS-Chem v9-01-02|v9-01-02]] release)
 
|-
 
|[[Anthropogenic_emissions#Streets_2000|Seasonal variation of Asian NH3 emissions]]
 
|Jenny Fisher (Harvard)
 
|28 Nov 2011 ([[GEOS-Chem v9-01-02|v9-01-02]] release)
 
|-
 
|[[GEOS-Chem_v9-01-02#Aerosol_optical_depth|Cleanup of AOD diagnostics]]
 
|Sungshik Patrick Kim (Harvard)
 
|28 Nov 2011 ([[GEOS-Chem v9-01-02|v9-01-02]] release)
 
|-
 
|[[Implementation_of_RETRO_Anthropogenic_Emissions|RETRO anthropogenic VOC emissions]]
 
|Dylan Millet (U. Minnesota)
 
|28 Nov 2011 ([[GEOS-Chem v9-01-02|v9-01-02]] release)
 
|-
 
|[[Carbon Gases and Organics Working Group#GEIA anthropogenic scaling factors|GEIA emissions scale factor fix]]
 
|Dylan Millet (U. Minnesota)
 
|28 Nov 2011 ([[GEOS-Chem v9-01-02|v9-01-02]] release)
 
|-
 
|Chemical updates for atmospheric Hg
 
|Bess Corbitt (Harvard)<br>Jenny Fisher (Harvard)
 
|28 Nov 2011 ([[GEOS-Chem v9-01-02|v9-01-02]] release)
 
|-
 
|[[Mercury#Anthropogenic_Emissions|GEIA 2005 Hg emissions]]
 
|Bess Corbitt (Harvard)
 
|28 Nov 2011 ([[GEOS-Chem v9-01-02|v9-01-02]] release)
 
|-
 
|[[Updating_standard_chemistry_with_JPL_10-6#current_standard_chemistry|Documentation of chemical mechanism]]
 
|Jingqiu Mao (NOAA/GFDL)
 
|30 Jun 2011
 
|-
 
|[http://pumpkin.aquila.infn.it/flexaod/ FlexAOD postprocessor]<br>''NOTE: This is a separate standalone [http://acmg.seas.harvard.edu/geos/geos_software_tools.html software tool].''
 
|Gabriele Curci (U. L'Aquila)
 
|26 May 2011
 
|-
 
|[[DSMACC chemical box model]]<br>''NOTE: This is a separate standalone [http://acmg.seas.harvard.edu/geos/geos_software_tools.html software tool].''
 
|Mat Evans (York U.)<br>Jingqiu Mao (Harvard)<br>Eloise Marais (Harvard)
 
|Summer 2011
 
 
|}
 
|}
  
--[[User:Bmy|Bob Y.]] 11:53, 28 November 2011 (EST)
+
----------------
 +
 
 +
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''

Revision as of 18:24, 22 September 2022

GEOS-Chem Main Page | GCHP Main Page

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.

Release schedule

Please see the GEOS-Chem Release Proposal outlining the procedure and schedule for releasing GEOS-Chem versions.

Merged and awaiting release

See the links below for items merged and awaiting release.

Patch version in development Major version in development
- GEOS-Chem 14.0.0

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


TOMAS in GCHP Betty Croft (WashU) Aerosols Simple
Adaptive chemical solver (as option) / KPP 3.0.0 Mike Long (Harvard)
Haipeng Lin (Harvard)
Bob Yantosca (GCST)
Lu Shen (PKU)
Chemistry Complicated
  • Lin, H., M.S. Long, R. Sander, R.M. Yantosca, L.A. Estrada, L. Shen, and D.J. Jacob, An adaptive auto-reduction solver for speeding up integration of chemical kinetics in atmospheric chemistry models: implementation and evaluation in the Kinetic Pre-Processor (KPP) version 3.0.0, submitted to JAMES, https://doi.org/10.31223/X5505V, 2022.
Joint CO2-CO-CH4-OCS simulation via KPP Beata Bukosa (NIWA)
Kevin Bowman (JPL)
Mike Long (Harvard)
Specialty simulation Medium
RO2 diagnostic Melissa Sulprizio (Harvard) Diagnostics Simple
Output satellite diagnostics as NetCDF Eloise Marais (UCL) Diagnostics Simple
Provide climatologies for open fire emissions Melissa Sulprizio (Harvard) Emissions Simple
Climatologies for lightning NOx Lee Murray (Rochester) Emissions Simple
Add new species concentration diagnostic in units of molec/cm3 Haipeng Lin (Harvard) Diagnostics Simple
Identify and remove memory leaks and similar issues Bob Yantosca (Harvard) Structural Medium
Update transport tracer simulation for consistency with the tracer gridded component in GEOS Melissa Sulprizio (Harvard) TransportTracer simulation Simple
Bug fix for GFAS in GCHP Lizzie Lundgren (Harvard) GCHP Simple
Use pointers to internal state for species arrays in GCHP/GEOS Lizzie Lundgren (Harvard) GCHP/GEOS Medium
Revision to a rate constant for the C2H4 scheme Kelvin Bates (Harvard) Chemistry Easy
Fix product in HOBr/Cl + S(IV) reactions Xuan Wang (CUHK) Chemistry Easy
Add MO2 + NO3 reaction Kelvin Bates (Harvard) Chemistry Easy

Delivered and in the queue

Features listed in this table have been delivered to the GEOS-Chem Support Team and are prioritized to be integrated into GEOS-Chem in the near future.

Feature Contributor(s) Model scope Ease of implementation Notes and References
AMAP 2015 emissions from GMA2018 Helene Angot(MIT)
Ari Feinberg (MIT)
Noelle Selin (MIT)
Hg simulation Simple
  • Delivered to GCST (Jul 2022)
Improvements in modelled Hg0 dry deposition to land Ari Feinberg (MIT)
Noelle Selin (MIT)
Thandolwethu Dlamini (MIT)
Martin Jiskra (UBasel)
Viral Shah (Harvard)
Hg simulation Simple
  • See geoschem/geos-chem PR #1367
  • The study is already published and could be incorporated into the standard model as a default. Some tweaking to the reduction rate may be required as the model halogen oxidation has also been updated in v13.4.
HTAPv3 at 0.1 deg Dandan Zhang (WashU) Emissions Simple
  • Delivered to GCST (Jul 2022)

Delivered but not yet prioritized

Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integration into GEOS-Chem.

Feature Contributor(s) Model scope Ease of implementation Notes and References
Tagged O3 simulation in GCHP Xingpei Yu (PKU)
Jourdan He (WashU)
TagO3 simulation Simple
Global continental chlorine (pCl and HCl) emissions Bingqing Zhang (Georgia Tech)
Pengfei Liu (Georgia Tech)
Emissions Simple
  • Delivered to GCST (Jul 2022)
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam(CUHK)
Amos Tai (CUHK)
Science Simple
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100 Yang Li (Baylor University)
Loretta Mickley (Harvard)
Emissions Simple
  • Data files delivered to GCST (July 2021)
  • Data are quite large - need to think about storage, compression
Stratospheric HCN chemistry Armin Kleinbohl (JPL)
Debra Weisenstein (Harvard, retired)
Chemistry Medium
  • Delivered to GCST (Jun 2020)

Ready but not delivered

Features listed in this table are ready but have not been delivered to the GEOS-Chem Support Team.

Feature Contributor(s) Model scope Notes and References
Updating VOC fire emissions and adding lumped furan Colette Heald (MIT)
Jessica Haskins (MIT)
Chemistry
  • Carter, T. S., Heald, C. L., Kroll, J. H., Apel, E. C., Blake, D., Coggon, M., Edtbauer, A., Gkatzelis, G., Hornbrook, R. S., Peischl, J., Pfannerstill, E. Y., Piel, F., Reijrink, N. G., Ringsdorf, A., Warneke, C., Williams, J., Wisthaler, A., and Xu, L.: An Improved Representation of Fire Non-Methane Organic Gases (NMOGs) in Models: Emissions to Reactivity, Atmos. Chem. Phys. Discuss. [preprint], https://doi.org/10.5194/acp-2022-438, in review, 2022.
Nitrate photolysis Viral Shah (NASA GMAO) Chemistry
  • Shah, V., D.J. Jacob, R. Dang, L.N. Lamsal, S.A. Strode, S.D. Steenrod, K.F. Boersma, S.D. Eastham, T.M. Fritz, C. Thompson, J. Peischl, I. Bourgeois, I.B. Pollack, B.A. Nault, R.C. Cohen, P. Campuzano-Jost, J.L. Jimenez, S.T. Andersen, L.J. Carpenter, T. Sherwen, and M.J. Evans, Nitrogen oxides in the free troposphere: Implications for tropospheric oxidants and the interpretation of satellite NO2 measurements, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2022-656, 2022.
Online H2 chemistry Maria Paula Pérez-Peña (UNSW)
Jenny Fisher (UOW)
Dylan Millet (UMN)
Chemistry
Alk4 & R4N2 chemistry Jared Brewer (Harvard) Chemistry
  • Brewer, J.F., D.J. Jacob, S.H. Jathar, Y. He, A. Akherati, S. Zhai, D.S. Jo, A. Hodzic, B.A. Nault, P. Campuzano-Jost, J.L. Jimenez, R.J. Park, Y.J. Oak, and H. Liao, A scheme for representing aromatic secondary organic aerosols in chemical transport models: application to source attribution of organic aerosols over South Korea during the KORUS-AQ campaign, submitted to J. Geophys. Res., 2022.
Organic acids (RCOOH) Katie Travis (NASA) Chemistry
Update reactions with new JPL & IUPAC recommendations Kelvin Bates (Harvard) Chemistry
  • Currently running simulations to check magnitude of changes
Improve carbon & nitrogen conservation in reactions Kelvin Bates (Harvard) Chemistry
Blowing snow sea salt in TOMAS Betty Croft (Dalhousie) Aerosols
Geologic emission of ethane and propane Matthew Rowlinson and Mat Evans(York) Emissions
New version of CEDS at 0.1 deg Emma Knowland (NASA) Emissions
MEIC (China regional) for 2000-2017 at 0.5x0.625 deg Shixian Zhai (Harvard) Emissions
  • Need permission from Qiang Zhang (Tsinghua U.) to distribute data
KORUS-AQ emissions for East Asia Katie Travis (NASA) Emissions
  • Need permission to distribute data
Australian anthropogenic Hg emissions Stephen MacFarlane (UOW)
Jenny Fisher (UOW)
Hannah Horowitz (U. Illinois)
Viral Shah (Harvard)
Hg simulation
WRF-GC Hg simulation Xiaotian Xu (Nanjing U.)
Yanxu Zhang (Nanjing U.)
Hg simulation
WRF-GC
Updated HgII gas-partical partitioning Kaiyun Liu (Tsinghua U.)
Qingru Wu (Tsinghua U.)
Shuxiao Wang (Tsinghua U.)
Hg simulation
  • Should be option, not default
Dry deposition to F90 (readability) Chris Holmes (FSU) Dry deposition

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


DMS Chemistry Linia Tashmim (UC Riverside)
William Porter (UC Riverside)
Chemistry
PPN+hv, PPN+OH Robert Ryan (UCL) Chemistry
MBO Michael Vermeuel (UMN) Chemistry
Stratospheric adjustment with RRTMG in GEOS-Chem Seb Eastham (MIT) Science
Re-binning of off-line sea salt and dust for use in TOMAS Betty Croft (Dalhousie) Aerosols
Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90 Betty Croft (Dalhousie) Aerosols
ML algorithms for bulk aerosols Arshad Nair (SUNY Albany)
Fangqun Yu (SUNY Albany)
Aerosols
PM2.5 and PM10 calculations: aerodynamic vs geometric diameters Shixian Zhai (Harvard) Aerosols
Updates to Hodzic SOA scheme Jared Brewer (Harvard) Aerosols
Automated reduction in isoprene scheme Dan Westervelt (Lamont-Doherty) Aerosols
Brown carbon chemsitry Jingqiu Mao (U. Alaska)
Xuan Wang (CUHK)
Aerosols


GEOS resolution and subgrid convection - Part 2 RAS parameter tuning Tailong He (Toronto)
Dylan Jones (Toronto)
Andrea Molod (NASA GMAO)
Convection
Update surface methane boundary condition using NOAA flask data Lee Murray (Rochester) Input data
Provide recommended rather than hard-coded scaling factors for online emissions Melissa Sulprizio (Harvard) Emissions
High-res top-down TROPOMI-derived seasonal mean NOx emissions for China Jintai Lin (PKU) Emissions Horizontal resolution: 5km, temporal resolution: JJA mean (monthly data will be available at a later stage; please contact us).
Updated biomass burning emission factors and species Tess Carter (MIT) Emissions
Updated offline sea salt emissions Hongjian Weng (PKU)
Jintai Lin (PKU)
Emissions
HgII deposition too high in 13.4; Hg0 conc too low; should not use as is Viral Shah (NASA GMAO)
Yanxu Zhang (Nanjing U.)
Ari Feinberg (MIT)
Hg simulation
Canopy Physics Model Sam Silva (MIT) Emissions &
Science
Gridded EPA (GEPA) version 2 emissions for 2012-2018 Bram Maasakkers (SRON)
Erin McDuffie (WashU),
Melissa Sulprizio (Harvard)
Emissions
CH4 simulation
Reduce dimension of analytical inversion Hannah Nesser (Harvard) Adjoint capability
Retire all BPCH diagnostics Bob Yantosca (Harvard) Diagnostics
GEOS-Chem in CESM 2.3 Lizzie Lundgren (Harvard) Interfacing with ESMs
Assess memory leak in GCHP Killian Murphy (York) Model performance
Point to internal state for species mixing ratios in GCHP and GEOS Lizzie Lundgren (Harvard)
Christoph Keller (NASA)
Structural
Assess precision in GCHP internal state - use R4 for some? Lizzie Lundgren (Harvard) Structural
Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT)
Killian Murphy (York)
Model performance
Convert HEMCO input files to YAML Melissa Sulprizio (Harvard) Structural
Allow easy disabling of HEMCO emissions for testing Melissa Sulprizio (Harvard) Structural
Improve run directory templating and creation with init_rd.sh and shared directories Jourdan He (WashU) Run directories
Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc GCST? Documentation
Upgrade Fast-JX to Cloud-J Lizzie Lundgren (Harvard) Structural

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
Snow / Icy Bromine Becky Alexander (UW)
William Swanson (U. Alaska)
Shuting Zhai (UW)
Chemistry
Monoterpene oxidation scheme Jessica Haskins (MIT) Chemistry
Fire related VOCs including furans Lu Hu (UMT)
Lixu Jin (UMT)
Chemistry
Extension of UCX into the mesosphere Seb Eastham (MIT)
Eric Fleming (NASA)
Chemistry
Methane flux ingestion Eloise Marais (UCL) Chemistry
Parameterized effective radius Haihui Zhu (WashU) Aerosols
Dust non-sphericity impacts on surface chem and optical properties Inderjeet Singh (WashU) Aerosols
Size-resolved stratospheric aerosol Seb Eastham (MIT) Aerosols
Extend aerosol settling Eloise Marais (UCL) Aerosols
Stratospheric aerosol APM Fangqun Yu (SUNY) Aerosols
Plume-in-grid model Hongwei Sun (Harvard) Chemistry
Updated lightning NOx: Prescribe from ground and geostationary lightning flashes Lee Murray (Rochester) Emissions
Seb aircraft emissions beyond recent 2019 update Seb Eastham (MIT) Emissions
FRP-based fire emsisions for eastern US at 0.2 deg Charlie Fite (FSU) Emissions
Hg iodine chemistry Yiming Fu
Yanxu Zhang (Nanjing U.)
Hg simulation
Hg simulation in GCHP Ari Feinberg (MIT)
Lyssa Freese (MIT)
Hg simulation
Update Hg ocean and soil boundary conditions for consistency with new chemistry Yanxu Zhang (Nanjing U.) Hg simulation
Dry deposition diagnostics by land cover Holly Nowell (FSU) Diagnostics
Dry deposition process diagnostics Holly Nowell (FSU) Diagnostics
Isotope simulation for CO and CH4 in GCHP Lee Murray (Rochester) Carbon simulation
Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3) Melissa Sulprizio (Harvard)
Tia Scarpelli (U. Edinburgh)
Zichong Chen (Harvard)
Emissions
CH4 simulation
Separate mixing and emissions Bob Yantosca (Harvard) Structural
Modularization of aerosols code for interface with GOCART in GEOS Christoph Keller (GMAO) Structural
Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism Bob Yantosca (Harvard) Structural
Improve load balancing in GCHP Seb Eastham (MIT) Model performance
Update to MAPL 3 in GCHP, including replacement of ExtData.rc with YAML file Lizzie Lundgren (Harvard) Structural
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone Bob Yantosca (Harvard) Model performance
Limit allocation of State_Met to what is needed per simulation Melissa Sulprizio (Harvard) Structural
Make frequency of HEMCO restart file configurable Melissa Sulprizio (Harvard) Diagnostics
Apply masks/scaling in HEMCO based on input category or flag Melissa Sulprizio (Harvard) Structural
Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer Bo Zhang (NIA)
Hongyu Liu (NIA / NASA Langley)
Transport
Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer Gan Luo (SUNY Albany)
Fangqun Yu (SUNY-Albany)
Transport
Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons Seb Eastham (MIT)
Clara Orbe (NASA GISS)
Andrew Schuh (CSU)
Transport

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


New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa)
Emissions
Updates to Aromatic chemistry Stephen MacFarlane (UOW)
Jenny Fisher (UOW)
Chemistry
Nitrate photolysis Mat Evans (York)
Thomas Sherwen (York)
Matthew Rowlinson (York)
Chemistry
In aerosol chemistry Halogens Mat Evans (York)
Hansen Cao (CU Boulder)
Chemistry
Benchmark box model of GC Chemistry Katie Travis (NASA) Chemistry
Alkyl nitrates Alk7, PHAN Katie Travis (NASA) Chemistry
Add stratospheric ozone species to full-chemistry simulations Lee Murray (Rochester) Chemistry
Perchlorate chemistry Yuk Chun Chan (UWAB) Chemistry
Explicit heterogeneous sulfate chemistry Katie Travis (NASA)
Becky Alexander (UT)
Chemistry
ISORROPIA-lite Becky Alexander (UW) Aerosols
HOx and ozone "emissions" from lightning as option in model to play with Jingqiu (Alaska)
Lee Murray (Rochester)
Emissions
Sea salt aerosol from sea ice leads Hannah Horowitz (U. Illinois) Emissions
Drought-stress algorithm Wei Li (U. Houston)
Biomass burning injection height profiles Inderjeet Singh (WashU) Emissions
OCIM integration Chris Holmes (FSU)
Lee Murray (Rochester)
Updating landcover products in GEOS-Chem Chris Holmes (FSU)
Jeff Geddes (BU)
Input data
Dry deposition physical improvement Chris Holmes (FSU) Dry deposition
Extend the IMI system to other trace gases Lucas Estrada (Harvard) Adjoint capabilities


TOMAS WRF-GC in regional Thailand simulation Win Trivitayanurak (Chulalongkorn U) Aerosols

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