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

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(Items that have yet to be included in GEOS-Chem)
(Delivered and in the queue)
 
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This is a list of planned GEOS-Chem model development items over the next two years, based on discussions and  [http://acmg.seas.harvard.edu/geos/geos_meeting_2009.html#wg_reports GEOS-Chem Working Group reports] from the April 2009 GEOS-Chem Users' Meeting. The key model developer or model contact is identified for each item. Items are listed in rough order of decreasing readiness, although this can quickly change. 
+
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
  
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].
+
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 [http://acmg.seas.harvard.edu/geos/geos_working_groups.html Working Groups] and the [http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html Steering Committee]. For history of past releases see the [[GEOS-Chem_versions|GEOS-Chem Versions wiki page]].
  
== Items that are now included in GEOS-Chem ==  
+
== Release schedule ==
 +
 
 +
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.
 +
 
 +
== Merged and awaiting release ==
 +
 
 +
See the links below for items merged and awaiting release.
 +
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Patch version in development
 +
!width="200px"|Major version in development
 +
 
 +
|-valign="top"
 +
|align="center"| -
 +
|align="center"|'''[[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.
 +
 
 +
{| 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://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
 +
|Medium
 +
|
 +
*[https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
 +
|Melissa Sulprizio (Harvard)
 +
|Emissions
 +
|Simple
 +
|
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx]
 +
|Lee Murray (Rochester)<br>Melissa Sulprizio (Harvard)
 +
|Emissions
 +
|Simple
 +
|
 +
 
 +
|-valign="top"
 +
|[[Grid-independent_emissions|Updated offline biogenic emissions]]
 +
|Hongjian Weng (PKU)
 +
|Emissions
 +
|Simple
 +
|
 +
*Delivered to GCST (Dec 2021)
 +
 
 +
|-valign="top"
 +
|[[Grid-independent_emissions|Updated offline soil NOx emissions]]
 +
|Hongjian Weng (PKU)
 +
|Emissions
 +
|Simple
 +
|
 +
*Delivered to GCST (Dec 2021)
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/discussions/1022 Add new species concentration diagnostic in units of molec/cm3]
 +
|Haipeng Lin (Harvard)
 +
|Diagnostics
 +
|Simple
 +
|
 +
*See [https://github.com/geoschem/geos-chem/pull/1264 geoschem/geos-chem PR #1264]
 +
 
 +
|-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]
 +
 
 +
|-valign="top"
 +
|Upgrade Fast-JX to Cloud-J
 +
|Lizzie Lundgren (Harvard)
 +
|Structural
 +
|Complicated
 +
|
 +
*See [https://github.com/geoschem/cloud-j geoschem/cloud-j]
 +
 
 +
|-valign="top"
 +
|Column diagnostics
 +
|Bob Yantosca (Harvard)
 +
|Diagnostics
 +
|Simple
 +
|
 +
 
 +
|-valign="top"
 +
|RO2 diagnostic
 +
|Melissa Sulprizio (Harvard)
 +
|Diagnostics
 +
|Simple
 +
|
 +
 
 +
|}
 +
 
 +
== 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.
 +
 
 +
{| 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://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option) / KPP 3.0.0
 +
|Mike Long (Harvard) <br> Haipeng Lin (Harvard) <br> Bob Yantosca (GCST) <br> Lu Shen (PKU)
 +
|Chemistry
 +
|Complicated
 +
|
 +
*In testing, publication expected in mid-to-late 2022
 +
*Previous literature: [https://gmd.copernicus.org/articles/15/1677/2022/ Shen et al., 2022], [https://gmd.copernicus.org/articles/13/2475/2020/ Shen et al., 2020]
 +
 
 +
|-valign="top"
 +
|TOMAS in GCHP
 +
|Betty Croft (WashU)
 +
|Aerosols
 +
|Simple
 +
|See:
 +
*[https://github.com/geoschem/GCHP/pull/221 geoschem/GCHP PR #221]
 +
*[https://github.com/geoschem/geos-chem/pull/1261 geoschem/geos-chem PR #1261]
 +
*[https://github.com/geoschem/HEMCO/pull/145 geoschem/HEMCO PR #145]
 +
 
 +
|-valign-"top"
 +
|[https://github.com/arifein/pythonHgBenchmark Updated Hg benchmarking scripts in python]
 +
|Ari Feinberg (MIT)
 +
|Benchmarking
 +
|Simple
 +
|
 +
* Ideally to be incorporated in GCPy
 +
 
 +
|-valign="top"
 +
|Tagged O3 simulation in GCHP
 +
|Xingpei Yu (PKU)
 +
|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
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
 +
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
 +
|Emissions
 +
|Simple
 +
|
 +
 
 +
|}
 +
 
 +
== 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 integrating into the model.
 +
 
 +
{| 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://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)
 +
 
 +
|-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
 +
 
 +
|}
 +
 
 +
== Ready but not delivered ==
 +
 
 +
Features listed in this table are ready but have not been delivered to the GEOS-Chem Support Team.
 +
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="300px"|Notes and References
 +
 
 +
|-valign="top"
 +
|Furans / Biomass burning
 +
|Colette Heald (MIT)<br>Tess Carter (MIT)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Online H2 chemistry
 +
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Alk4 & R4N2 chemistry
 +
|Jared Brewer (Harvard)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Organic acids (RCOOH)
 +
|Katie Travis (NASA)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Fix C2H4 chemistry bug
 +
|Lixu Jin (UMT)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Blowing snow sea salt in TOMAS
 +
|Betty Croft (Dalhousie)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Global continental chlorine (pCl and HCl) emissions
 +
|Pengfei Liu (GTech)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Geologic short-chain alkanes
 +
|Matthew R. (York)
 +
|Emissions
 +
|
 +
 
 +
|-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/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
 +
|
 +
* 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://doi.org/10.34894/SZ2KOI AMAP 2015 emissions from GMA2018]
 +
|Helene Angot(MIT)<br>Ari Feinberg (MIT)<br>Noelle Selin (MIT)
 +
|Hg simulation
 +
|
 +
* Helene Angot has gridded these for input into HEMCO and these could be uploaded from our MIT group servers to the GEOS-Chem HEMCO database.
 +
 
 +
|-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
 +
|
 +
 
 +
|}
 +
 
 +
== Almost there (< 6 months) ==
 +
 
 +
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
 +
 
 +
{|border=1 cellspacing=0 cellpadding=5
 +
|- bgcolor="#cccccc"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
 +
 
 +
 
 +
|-valign="top"
 +
|DMS Chemistry
 +
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|PPN+hv, PPN+OH
 +
|Robert Ryan (UCL)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|MBO
 +
|Michael Vermeuel (UMN)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Nitrate photolysis
 +
|Viral Shah (NASA GMAO)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]
 +
|Seb Eastham (MIT)
 +
|Science
 +
|
 +
 
 +
|-valign="top"
 +
|Re-binning of off-line sea salt and dust for use in TOMAS
 +
|Betty Croft (Dalhousie)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
 +
|Betty Croft (Dalhousie)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|ML algorithms for bulk aerosols
 +
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
 +
|Shixian Zhai (Harvard)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Updates to Hodzic SOA scheme
 +
|Jared Brewer (Harvard)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Automated reduction in isoprene scheme
 +
|Dan Westervelt (Lamont-Doherty)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Brown carbon chemsitry
 +
|Jingqiu Mao (U. Alaska)<vr>Xuan Wang (CUHK)
 +
|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"
 +
|HTAPv3 at 0.1 deg
 +
|Dandan Zhang (WashU)
 +
|Emissions
 +
|
 +
 
 +
|-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
 +
|
 +
 
 +
|-valign="top"
 +
|Updated biomass burning emission factors and species
 +
|Jess Haskins (Utah)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Updated offline sea salt emissions
 +
|Hongjian Weng (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"
 +
|Python code for processing satellite output to produce column fields using averaging kernels
 +
|Hannah Nesser (Harvard)<br>Elise Penn (Harvard)
 +
|Post-processing
 +
|
 +
 
 +
|-valign="top"
 +
|Derived products from a shapefile database for oil and gas infrastructure in North America
 +
|Lee Murray (Rochester)
 +
|Post-processing
 +
|
 +
 
 +
|-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
 +
|Liam Bindle (WashU)<br>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
 +
|Liam Bindle (WashU)
 +
|Run directories
 +
|
 +
 
 +
|-valign="top"
 +
|Expand SpeciesConc diagnostic unit options and rename
 +
|Melissa Sulprizio (Harvard)
 +
|Diagnostics
 +
|
 +
 
 +
|-valign="top"
 +
|Incorporate tools for generating input files for Fast-J/Cloud-J and planeflight
 +
|Jared Brewer (Harvard)
 +
|Post-processing
 +
|
 +
 
 +
|-valign="top"
 +
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
 +
|GCST?
 +
|Documentation
 +
|
 +
 
 +
|}
 +
 
 +
== 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"
!Item
+
!width="200px"|Feature
!Author(s)
+
!width="200px"|Contributor(s)
!Completion Date
+
!width="100px"|Model scope
|-
+
!width="420px"|Notes and References
|Improved BL mixing scheme  
+
 
|Jintai Lin
+
|-valign="top"
|Now included in [[GEOS-Chem v8-02-02]]; released 08 Jun 2009
+
|Snow / Icy Bromine
|-
+
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
|BC/OC aerosol emissions from Bond inventory
+
|Chemistry
|Eric Leibensperger
+
|
|Now included in [[GEOS-Chem v8-02-02]]; released 08 Jun 2009
+
 
|-
+
|-valign="top"
|Chemical updates
+
|Monoterpene oxidation scheme
|Mat Evans<br>Fabien Paulot<br>Jingqiu Mao<br>Paul Palmer
+
|Jessica Haskins (MIT)
|Updated chemical mechanism and photolysis files<br><tt>globchem.dat</tt>, <tt>jv_spec.dat</tt>, <tt>ratj.d</tt><br>(see [http://www.as.harvard.edu/ctm/geos/wiki_docs/chemistry/chemistry_updates_v4.pdf documentation])<br>Now included in [[GEOS-Chem v8-02-01]]; released 26 May 2009
+
|Chemistry
|-
+
|
|Common model adjoint and documentation
+
 
|Daven Henze<br>Kumaresh Singh<br>Monika Kopacz
+
|-valign="top"
|Code merging session took place June 6-9, 2009 @ Virginia Tech<br>
+
|Fire related VOCs including furans
*Merged 3 branches of adjoint
+
|Lu Hu (UMT)<br>Lixu Jin (UMT)
*Forward model now based on v8-02-01 (w/ GEOS-5)
+
|Chemistry
*Input files cleaned up and standardized
+
|
*New makefiles; code separated into subdirectories
+
 
*New CVS repository @ U. Colorado for code access
+
|-valign="top"
*Some minor cleanup may still be needed (as of June 2009)
+
|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"
 +
|CHEEREIO EnKF
 +
|Drew Pendergrass (Harvard)
 +
|Adjoint capabilities
 +
|
 +
 
 +
|-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.]] 14:08, 15 June 2009 (EDT)
+
== Longer term (12-24 months)==
  
== Items that have yet to be included in GEOS-Chem ==
+
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"
!Item
+
!width="200px"|Feature
!Author(s)
+
!width="200px"|Contributor(s)
!Status
+
!width="100px"|Model scope
|-
+
!width="420px"|Notes and References
|Local stratospheric ozone column from GEOS-5
+
 
|GEOS-Chem Support Team
+
|-valign="top"
|Mature, will be released in [[GEOS-Chem v8-02-03]]
+
|Updates to Aromatic chemistry
|-
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
|KPP chemical solver
+
|Chemistry
|Kumaresh Singh
+
|
|Mature, will be released in [[GEOS-Chem v8-02-03]]
+
 
|-
+
|-valign="top"
|Sectional aerosol
+
|Nitrate photolysis
|Fangqun Yu (APM)<br>Peter Adams (TOMAS)
+
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
|Win T. & G-C support team shall install TOMAS into G-C
+
|Chemistry
|-
+
|
|Linoz stratospheric ozone
+
 
|Dylan Jones
+
|-valign="top"
|Code has been delivered to G-C support team
+
|In aerosol chemistry Halogens
|-
+
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
|Methane including tagged tracers
+
|Chemistry
|Kevin Wecht
+
|
|Code is being cleaned up & tested
+
 
|-
+
|-valign="top"
|CO2 including tagged tracers
+
|Benchmark box model of GC Chemistry
|Ray Nassar
+
|Katie Travis (NASA)
|Waiting upon delivery to G-C support team
+
|Chemistry
|-
+
|
|Anthropogenic VOCs update
+
 
|Dylan Millet<br>
+
|-valign="top"
|Need new MEGAN emission from terpenes
+
|Alkyl nitrates Alk7, PHAN
|-
+
|Katie Travis (NASA)
|COADS ship emissions
+
|Chemistry
|Chulkyu Lee
+
|
|Updates have been transferred to G-C support team; will be included in code soon
+
 
|-
+
|-valign="top"
|Update aerosol optical properties
+
|Add stratospheric ozone species to full-chemistry simulations
|Colette Heald<br>Randall Martin<br>and the Aerosols Working Group
+
|Lee Murray (Rochester)
|Randall Martin will create "master list"<br>of aerosol optical properties
+
|Chemistry
|-
+
|
|Addition of aromatics to SOA simulation
+
 
|Daven Henze
+
|-valign="top"
|to be added in short order following v8-02-01 release
+
|Perchlorate chemistry
|-
+
|Yuk Chun Chan (UWAB)
|Archive tropospheric OH fields from benchmark runs
+
|Chemistry
|GEOS-Chem Support Team
+
|
|&nbsp;
+
 
|-
+
|-valign="top"
|Flexible region mask for tagged tracers
+
|Explicit heterogeneous sulfate chemistry
|Dylan Jones<br>Prasad Kasibhatla
+
|Katie Travis (NASA)<br>Becky Alexander (UT)
|&nbsp;
+
|Chemistry
|-
+
|
|Updated strat chem. from GMI Combo
+
 
|Dylan Jones
+
|-valign="top"
|&nbsp;
+
|ISORROPIA-lite
|-
+
|Becky Alexander (UW)
|Acquire long-term MERRA archive
+
|Aerosols
|GEOS-Chem Support Team
+
|
|&nbsp;
+
 
|-
+
|-valign="top"
|Convert model output to NetCDF
+
|HOx and ozone "emissions" from lightning as option in model to play with
|GEOS-Chem Support Team
+
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
|&nbsp;
+
|Emissions
|-
+
|
|Global 1x1.25 model capability
+
 
|Lok Lamsal
+
|-valign="top"
|&nbsp;
+
|Sea salt aerosol from sea ice leads
|-
+
|Hannah Horowitz (U. Illinois)
|Aerosol data sets for benchmarking
+
|Emissions
|Colette Heald
+
|
|&nbsp;
+
 
|-
+
|-valign="top"
|Data servers for chemistry/climate databases
+
|Drought-stress algorithm
|Loretta Mickley
+
|Wei Li (U. Houston)
|&nbsp;
+
|
|-
+
|
|GFED3 biomass burning
+
 
|Prasad Kasibhatla
+
|-valign="top"
|&nbsp;
+
|Biomass burning injection height profiles
|-
+
|Inderjeet Singh (WashU)
|Updated aircraft emissions
+
|Emissions
|Lee Murray
+
|
|&nbsp;
+
 
|-
+
|-valign="top"
|Interannual lightning
+
|OCIM integration
|Lee Murray
+
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
|&nbsp;
+
|
|-
+
|
|ISORROPIA II
+
 
|Havala Pye<br>Thanos Nenes<br>Becky Alexander
+
|-valign="top"
|&nbsp;
+
|Updating landcover products in GEOS-Chem
|-
+
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
|Fire injection heights
+
|Input data
|Maria Val Martin
+
|
|&nbsp;
+
 
|-
+
|-valign="top"
|CCSM3 interface
+
|Dry deposition physical improvement
|Rokjin Park
+
|Chris Holmes (FSU)
|&nbsp;
+
|Dry deposition
|-
+
|
|Soil NOx emission
+
 
|Randall Martin<br>Rynda Hudman
+
|-valign="top"
|&nbsp;
+
|Extend the IMI system to other trace gases
|-
+
|Lucas Estrada (Harvard)
|PBAP
+
|Adjoint capabilities
|Colette Heald
+
|
|&nbsp;
+
 
|-
+
 
|Sulfate/nitrate isotopes
+
|-valign="top"
|Becky Alexander
+
|TOMAS WRF-GC in regional Thailand simulation
|&nbsp;
+
|Win Trivitayanurak (Chulalongkorn U)
|-
+
|Aerosols
|Tropospheric bromine chemistry
+
|
|Justin Parrella
+
 
|&nbsp;
+
|-
+
|ESMF/MPI capability
+
|GEOS-Chem Support Team
+
|Currently working on [[GEOS-Chem column code|columnizing the<br>GEOS-Chem chemistry code]] for inclusion<br>into the GEOS-5 GCM
+
|-
+
|Spatial reduction mechanism
+
|Mauricio Santillana
+
|&nbsp;
+
|-
+
|GISS Model E interface
+
|Lee Murray
+
|&nbsp;
+
|-
+
|Terrestrial and deep ocean mercury
+
|Nicole Smith-Downey<br>Elsie Sunderland
+
|&nbsp;
+
 
|}
 
|}
  
--[[User:Bmy|Bob Y.]] 14:03, 15 June 2009 (EDT)
+
----------------
 +
 
 +
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''

Latest revision as of 19:41, 21 June 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
Joint CO2-CO-CH4-OCS simulation via KPP Beata Bukosa (NIWA)
Kevin Bowman (JPL)
Mike Long (Harvard)
Specialty simulation Medium
Provide climatologies for open fire emissions Melissa Sulprizio (Harvard) Emissions Simple
Climatologies for lightning NOx Lee Murray (Rochester)
Melissa Sulprizio (Harvard)
Emissions Simple
Updated offline biogenic emissions Hongjian Weng (PKU) Emissions Simple
  • Delivered to GCST (Dec 2021)
Updated offline soil NOx emissions Hongjian Weng (PKU) Emissions Simple
  • Delivered to GCST (Dec 2021)
Add new species concentration diagnostic in units of molec/cm3 Haipeng Lin (Harvard) Diagnostics Simple
Output satellite diagnostics as NetCDF Eloise Marais (UCL) Diagnostics Simple
Upgrade Fast-JX to Cloud-J Lizzie Lundgren (Harvard) Structural Complicated
Column diagnostics Bob Yantosca (Harvard) Diagnostics Simple
RO2 diagnostic Melissa Sulprizio (Harvard) Diagnostics Simple

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
Adaptive chemical solver (as option) / KPP 3.0.0 Mike Long (Harvard)
Haipeng Lin (Harvard)
Bob Yantosca (GCST)
Lu Shen (PKU)
Chemistry Complicated
TOMAS in GCHP Betty Croft (WashU) Aerosols Simple See:
Updated Hg benchmarking scripts in python Ari Feinberg (MIT) Benchmarking Simple
  • Ideally to be incorporated in GCPy
Tagged O3 simulation in GCHP Xingpei Yu (PKU) TagO3 simulation Simple
New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa)
Emissions Simple

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 integrating into the model.

Feature Contributor(s) Model scope Ease of implementation Notes and References
Stratospheric HCN chemistry Armin Kleinbohl (JPL)
Debra Weisenstein (Harvard, retired)
Chemistry Medium
  • Delivered to GCST (Jun 2020)
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

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
Furans / Biomass burning Colette Heald (MIT)
Tess Carter (MIT)
Chemistry
Online H2 chemistry Maria Paula Pérez-Peña (UNSW)
Jenny Fisher (UOW)
Dylan Millet (UMN)
Chemistry
Alk4 & R4N2 chemistry Jared Brewer (Harvard) Chemistry
Organic acids (RCOOH) Katie Travis (NASA) Chemistry
Fix C2H4 chemistry bug Lixu Jin (UMT) Chemistry
Blowing snow sea salt in TOMAS Betty Croft (Dalhousie) Aerosols
Global continental chlorine (pCl and HCl) emissions Pengfei Liu (GTech) Emissions
Geologic short-chain alkanes Matthew R. (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
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
  • 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.
AMAP 2015 emissions from GMA2018 Helene Angot(MIT)
Ari Feinberg (MIT)
Noelle Selin (MIT)
Hg simulation
  • Helene Angot has gridded these for input into HEMCO and these could be uploaded from our MIT group servers to the GEOS-Chem HEMCO database.
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
Nitrate photolysis Viral Shah (NASA GMAO) 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)<vr>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
HTAPv3 at 0.1 deg Dandan Zhang (WashU) Emissions
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
Updated biomass burning emission factors and species Jess Haskins (Utah) Emissions
Updated offline sea salt emissions Hongjian Weng (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
Python code for processing satellite output to produce column fields using averaging kernels Hannah Nesser (Harvard)
Elise Penn (Harvard)
Post-processing
Derived products from a shapefile database for oil and gas infrastructure in North America Lee Murray (Rochester) Post-processing
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 Liam Bindle (WashU)
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 Liam Bindle (WashU) Run directories
Expand SpeciesConc diagnostic unit options and rename Melissa Sulprizio (Harvard) Diagnostics
Incorporate tools for generating input files for Fast-J/Cloud-J and planeflight Jared Brewer (Harvard) Post-processing
Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc GCST? Documentation

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
CHEEREIO EnKF Drew Pendergrass (Harvard) Adjoint capabilities
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
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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