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

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'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
 
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_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.
+
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]].
  
We also invite you to view our [https://trello.com/board/geos-chem-support-team/4fe36668fc79a1d3540ba80b GEOS-Chem Support Team project management board on Trello.com], which shows the current GCST workflow.
+
== Release schedule ==
  
== Priorities assigned to upcoming GEOS-Chem versions ==
+
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.
  
=== 12.4.0 ===
+
== Merged and awaiting release ==
  
<span style="color:darkorange">'''This version is currently in development. See [[GEOS-Chem_12#12.4.0|the ''GEOS-Chem 12'' wiki page]] for details.'''</span>
+
See the links below for items merged and awaiting release.
  
=== 12.5.0 ===
+
{| border=1 cellspacing=0 cellpadding=5  
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Patch version in development
 +
!width="200px"|Major version in development
 +
 
 +
|-valign="top"
 +
|align="center"|'''[[GEOS-Chem 14.0.1]]'''
 +
|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  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
!width="500px"|Feature
+
!width="200px"|Feature
!width="200px"|Submitted by
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="300px"|Status
+
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
|-valign="top
+
|-valign="top"
|Retire obsolete emission inventories
+
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option) / KPP 3.0.0
|Eloise Marais (Leicester)<br>GCST
+
|Mike Long (Harvard) <br> Haipeng Lin (Harvard) <br> Bob Yantosca (GCST) <br> Lu Shen (PKU)
|Science
+
|Chemistry
 +
|Complicated
 
|
 
|
 +
*KPP 3.0.0-rc.0 (release candidate for 3.0.0) is being prepared for concurrent release with Haipeng Lin's paper
 +
*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"
 
|-valign="top"
|Update GCHP to use MAPL v1.0.0 and ESMF v8.0.0 beta snapshot 28
+
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation via KPP]
|Lizzie Lundgren (GCST)
+
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)<br>Mike Long (Harvard)
|Structural
+
|Specialty simulation
 +
|Medium
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
  
 
|-valign="top"
 
|-valign="top"
|Allow GEOS-Chem "Classic" netCDF (History) diagnostics to be subsetted vertically and horizontally
+
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
|GCST
+
|Melissa Sulprizio (Harvard)
|Structural
+
|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"
 +
|[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
 
|
 
|
*Undergoing validation (Jun 2019)
+
*See [https://github.com/geoschem/geos-chem/pull/1134 geoschem/geos-chem #1134]
  
 
|-valign="top"
 
|-valign="top"
|Add capability to compile GEOS-Chem Classic and GCHP using CMake
+
|Upgrade Fast-JX to Cloud-J
|Liam Bindle (Dalhousie University)
+
|Lizzie Lundgren (Harvard)
 
|Structural
 
|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
 +
|
 +
 +
|-valign="top"
 +
|Update transport tracer simulation for consistency with the tracer gridded component in GEOS
 +
|Melissa Sulprizio (Harvard)
 +
|TransportTracer simulation
 +
|Simple
 
|
 
|
  
 
|}
 
|}
  
=== 12.6.0 ===
+
== Delivered and in the queue ==
  
This version will require 1-month and 1-year full-chemistry benchmarks.
+
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  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
!width="500px"|Feature
+
!width="200px"|Feature
!width="200px"|Submitted by
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="300px"|Status
+
!width="100px"|Ease of implementation
 
+
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018JD029133 N2O5, NO3, NO2 reactive uptake updates]
+
|TBD
|Viral Shah (UW)<br>Lyatt Jaegle (UW)<br>Chris Holmes (FSU)<br>Erin McDuffie (Dalhousie)
+
|
|Science
+
|
 +
|
 
|
 
|
*Delivered to GCST (Dec 2018)
+
 
 +
|}
 +
 
 +
== 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.
 +
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|HNO3 cold-temperature deposition
+
|TOMAS in GCHP
|Viral Shah (Harvard)
+
|Betty Croft (WashU)
|Science
+
|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"
 
|-valign="top"
|Bug in aerosol pH calculation when dry
+
|[https://doi.org/10.34894/SZ2KOI AMAP 2015 emissions from GMA2018]
|Becky Alexander (UW)<br>Xuan Wang (Harvard)
+
|Helene Angot(MIT)<br>Ari Feinberg (MIT)<br>Noelle Selin (MIT)
|Science
+
|Hg simulation
 +
|Simple
 
|
 
|
 +
* Delivered to GCST (Jul 2022)
  
 
|-valign="top"
 
|-valign="top"
|Remove isoprene in VBS (leaving aqueous)
+
|Tagged O3 simulation in GCHP
|GCST w/ guidance from Sid Pai (MIT)
+
|Xingpei Yu (PKU)
|Science
+
|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
+
|-valign="top"
|Historical biomass burning emissions (1750-2014, BCC4CMIP and LPJ-LMfire)
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
|Pengfei Liu (Harvard)
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
|Science
+
|Emissions
 +
|Simple
 
|
 
|
 +
*Delivered to GCST (Jun 2022)
  
|-valign="top
+
|-valign="top"
|Checked GFED4 version used by HEMCO
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
|Siddhant Pai (MIT)
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
|Science
+
|Emissions
 +
|Simple
 
|
 
|
*Older versions have bugs
+
*Delivered to GCST (Jul 2022)
  
 
|-valign="top"
 
|-valign="top"
|[[Chemistry_Issues#Correcting_ozone_from_the_height_of_the_lowest_model_level_to_the_surface|Surface diagnostic (O3, HNO3) with user-selected height]]
+
|[https://github.com/geoschem/geos-chem/issues/1301 HTAPv3 at 0.1 deg]
|Katie Travis (MIT)<br>GCST
+
|Dandan Zhang (WashU)
|Science
+
|Emissions
 +
|Simple
 
|
 
|
 +
*Delivered to GCST (Jul 2022)
  
 
|-valign="top"
 
|-valign="top"
|Updated aerosol hygroscopicity and optics
+
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
|Robyn Latimer (Dalhousie)<br>Jun Meng (Dalhousie)
+
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
|Science
+
|Chemistry
 +
|Medium
 
|
 
|
 +
*Delivered to GCST (Jun 2020)
  
 
|-valign="top"
 
|-valign="top"
|Simple parameterization for CO2 dependence of stomatal resistance
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
|Amos Tai (CUHK)
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Science
 
|Science
 +
|Simple
 
|
 
|
 +
*Delivered to GCST (Feb 2021)
 +
* [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/pull/32 Aerosol nitrate photolysis option] (off by default)
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
|Tomas Sherwen (York)<br>Prasad Kasibhatla (Duke)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
|Science
+
|Emissions
 +
|Simple
 
|
 
|
*Delivered to GCST (Mar 2019)
+
*Data files delivered to GCST (July 2021)
 +
*Data are quite large - need to think about storage, compression
  
 
|}
 
|}
  
=== 12.7.0 ===
+
== Ready but not delivered ==
  
This version will require a 1-month full-chemistry benchmark.
+
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="500px"|Feature
+
!width="200px"|Feature
!width="200px"|Submitted by
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="300px"|Status
+
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Subgrid cloud NOy chemistry
+
|Furans / Biomass burning
|Chris Holmes (FSU)
+
|Colette Heald (MIT)<br>Jessica Haskins (MIT)
|Science
+
|Chemistry
 
|
 
|
  
|}
+
|-valign="top"
 +
|Online H2 chemistry
 +
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
 +
|Chemistry
 +
|
  
=== 12.8.0 ===
+
|-valign="top"
 +
|Alk4 & R4N2 chemistry
 +
|Jared Brewer (Harvard)
 +
|Chemistry
 +
|
  
This version will require 1-month and 1-year full-chemistry benchmarks.
+
|-valign="top"
 +
|Organic acids (RCOOH)
 +
|Katie Travis (NASA)
 +
|Chemistry
 +
|
  
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
|-bgcolor="#CCCCCC"
+
|Fix C2H4 chemistry bug
!width="500px"|Feature
+
|Lixu Jin (UMT)
!width="200px"|Submitted by
+
|Chemistry
!width="100px"|Type
+
|
!width="300px"|Status
+
* Bug issue raised by Kelvin, slated for 14.1
  
 
|-valign="top"
 
|-valign="top"
|Wet deposition parameterization
+
|Update reactions with new JPL & IUPAC recommendations
|Kelvin Bates (Harvard)<br>GCST
+
|Kelvin Bates (Harvard)
|Science
+
|Chemistry
 
|
 
|
 +
* Currently running simulations to check magnitude of changes
  
|}
+
|-valign="top"
 +
|Improve carbon & nitrogen conservation in reactions
 +
|Kelvin Bates (Harvard)
 +
|Chemistry
 +
|
  
=== 12.9.0 ===
+
|-valign="top"
 +
|Blowing snow sea salt in TOMAS
 +
|Betty Croft (Dalhousie)
 +
|Aerosols
 +
|
  
This version will require 1-month and 1-year full-chemistry benchmarks.
+
|-valign="top"
 +
|Geologic short-chain alkanes
 +
|Matthew R. (York)
 +
|Emissions
 +
|
  
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
|-bgcolor="#CCCCCC"
+
|New version of CEDS at 0.1 deg
!width="500px"|Feature
+
|Emma Knowland (NASA)
!width="200px"|Submitted by
+
|Emissions
!width="100px"|Type
+
|
!width="300px"|Status
+
  
 
|-valign="top"
 
|-valign="top"
|[https://www.geosci-model-dev.net/12/111/2019/gmd-12-111-2019.pdf Aromatic VOC chemistry]
+
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
|Yingying Yan (PKU)<br>Jintai Lin (PKU)
+
|Shixian Zhai (Harvard)
|Science
+
|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
  
== Priorities not yet assigned to a particular version ==
+
|-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.
  
The following items have been identified as priorities for GEOS-Chem, but have not yet been assigned to a particular GEOS-Chem version.
+
|-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
 +
|
  
=== Ready to go in ===
+
|-valign-"top"
 +
|WRF-GC Hg simulation
 +
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation<br>WRF-GC
 +
|
  
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
|-bgcolor="#CCCCCC"
+
|Updated HgII gas-partical partitioning
!width="500px"|Feature
+
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
!width="200px"|Submitted by
+
|Hg simulation
!width="100px"|Type
+
|
!width="300px"|Status
+
* Should be option, not default
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+
  
 
|-valign="top"
 
|-valign="top"
|Implement H2 chemistry in UCX
+
|Dry deposition to F90 (readability)
 
|Chris Holmes (FSU)
 
|Chris Holmes (FSU)
|Science
+
|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"
 
|-valign="top"
|Joint CO, CO2, CH4 simulation
+
|DMS Chemistry
|Beata Bukosa (Wollongong)
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
|Science
+
|Chemistry
 
|
 
|
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Emissions and surface fluxes updates
+
|PPN+hv, PPN+OH
 +
|Robert Ryan (UCL)
 +
|Chemistry
 +
|
  
|-valign="top
+
|-valign="top"
|Updated Streets Hg emissions
+
|MBO
|Colin Thackray (Harvard)
+
|Michael Vermeuel (UMN)
|Science
+
|Chemistry
 
|
 
|
  
|-valign="top
+
|-valign="top"
|Updated EDGAR 4.3 Hg emissions
+
|Nitrate photolysis
|Amanda Giang (UBC)
+
|Viral Shah (NASA GMAO)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Offline CLM Harmonization
+
|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]
|Anthony Wong (BU)<br>Jeff Geddes (BU)
+
|Seb Eastham (MIT)
 
|Science
 
|Science
 
|
 
|
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+
|Re-binning of off-line sea salt and dust for use in TOMAS
 +
|Betty Croft (Dalhousie)
 +
|Aerosols
 +
|
  
 
|-valign="top"
 
|-valign="top"
|Arctic marine SOA
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
 
|Betty Croft (Dalhousie)
 
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 
|
 
|
*Details on wiki only, not in standard code
 
  
|}
+
|-valign="top"
 +
|ML algorithms for bulk aerosols
 +
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
 +
|Aerosols
 +
|
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+
|-valign="top"
 +
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
 +
|Shixian Zhai (Harvard)
 +
|Aerosols
 +
|
  
=== Almost there (< 6 months) ===
+
|-valign="top"
 +
|Updates to Hodzic SOA scheme
 +
|Jared Brewer (Harvard)
 +
|Aerosols
 +
|
  
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
|- bgcolor="#cccccc"
+
|Automated reduction in isoprene scheme
!width="500px"|Item
+
|Dan Westervelt (Lamont-Doherty)
!width="200px"|Author(s)
+
|Aerosols
!width="100px"|Type
+
|
!width="300px"|Status
+
  
 
|-valign="top"
 
|-valign="top"
|Diagnostic to archive XCO2, XCO, and XCH4
+
|Brown carbon chemsitry
|Dylan Jones (Toronto)
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
|Science
+
|Aerosols
 
|
 
|
 +
  
 
|-valign="top"
 
|-valign="top"
|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
|Kazu Miyazaki (JPL)
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
|Science
+
|Convection
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Evaluate the impact on the tropsophere of using the family approach for transport in the stratosphere
+
|Update surface methane boundary condition using NOAA flask data
|Christoph Keller (NASA/GMAO)  
+
|Lee Murray (Rochester)
|Science
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Examine differences in the lightning NOx schemes in GEOS-Chem and GMI
+
|Provide recommended rather than hard-coded scaling factors for online emissions
|Christoph Keller (NASA/GMAO)<br>Lee Murray (Rochester)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Small alkyl nitrate chemistry
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
|Jenny Fisher (Wollongong)
+
|Jintai Lin (PKU)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Isoprene chemistry
+
|Updated biomass burning emission factors and species
|Kelvin Bates (Harvard)
+
|Tess Carter (MIT)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|HMS chemistry
+
|Updated offline sea salt emissions
|Jonathan Moch (Harvard)
+
|Hongjian Weng (PKU)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Heterogeneous sulfate production
+
|HgII deposition too high in 13.4; Hg0 conc too low; should not use as is
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Viral Shah (NASA GMAO)<br>Yanxu Zhang (Nanjing U.)<br>Ari Feinberg (MIT)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Eliminate 27% scaling on semivolatile fire emissions for complex scheme
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
|Sidhant Pai (MIT)
+
|Sam Silva (MIT)
|Science
+
|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"
 
|-valign="top"
|BrC aging
+
|Python code for processing satellite output to produce column fields using averaging kernels
|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
+
|Hannah Nesser (Harvard)<br>Elise Penn (Harvard)
|Science
+
|Post-processing
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|APM update and integration with most recent GC version
+
|Derived products from a shapefile database for oil and gas infrastructure in North America
|Gan Luo (SUNY-Albany)<br>Fangqun Yu (SUNY-Albany)
+
|Lee Murray (Rochester)
|Science
+
|Post-processing
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Retire carbon-based units for VOCs
+
|Gridded EPA (GEPA) version 2 emissions for 2012-2018
|GCST
+
|Bram Maasakkers (SRON)<br>Erin McDuffie (WashU),<br>Melissa Sulprizio (Harvard)
|Science
+
|Emissions<br>CH4 simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Ozone deposition to the ocean
+
|Reduce dimension of analytical inversion
|Ryan Pound (York)<br>Mat Evans (York)
+
|Hannah Nesser (Harvard)
|Science
+
|Adjoint capability
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Latitudinally and monthly resolved fixed surface concentrations for GGs back to 1850
+
|Retire all BPCH diagnostics
|Tomás Sherwen (York)<br>Lee Murray (Rochester)
+
|Bob Yantosca (Harvard)
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Update of US emissions to NEI16
+
|GEOS-Chem in CESM 2.3
|Barron Henderson (EPA)
+
|Lizzie Lundgren (Harvard)
|Science
+
|Interfacing with ESMs
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updated surface ocean dissolved Hg0 from MITgcm
+
|Assess memory leak in GCHP
|Yanxu Zhang (Nanjing)
+
|Liam Bindle (WashU)<br>Killian Murphy (York)
|Science
+
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|HEMCO improvements
+
|Point to internal state for species mixing ratios in GCHP and GEOS
|Christoph Keller (NASA/GMAO)<br>GCST
+
|Lizzie Lundgren (Harvard)<br>Christoph Keller (NASA)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Cmake in GEOS-Chem
+
|Assess precision in GCHP internal state - use R4 for some?
|Liam Bindle (Dalhousie)
+
|Lizzie Lundgren (Harvard)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|One-Way Coupling w/ GISS ModelE3
+
|Hybrid MPI-OpenMP in GCHP
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
 +
|Model performance
 +
|
 +
 
 +
|-valign="top"
 +
|Convert HEMCO input files to YAML
 +
|Melissa Sulprizio (Harvard)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Online Coupling w/ GEOS CCM
+
|Allow easy disabling of HEMCO emissions for testing
|Lizzie Lundgren (Harvard)<br>Lu Hu (U. MT)<br>Christoph Keller (NASA/GMAO)
+
|Melissa Sulprizio (Harvard)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Shared Socioeconomic Pathways Emission Inventories
+
|Improve run directory templating and creation with init_rd.sh and shared directories
|Hong Liao (NUIST)
+
|Liam Bindle (WashU)
|Science
+
|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
 
|
 
|
  
 
|}
 
|}
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+
== 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="500px"|Item
+
!width="200px"|Feature
!width="200px"|Author(s)
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="300px"|Status
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Update OCS simulation in the standard code
+
|Snow / Icy Bromine
|Kevin Bowman (JPL)
+
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Examine what are the differences in the PSC implementation in GEOS-Chem and GMI and assess the implications of these differences for startospheric ozone
+
|Monoterpene oxidation scheme
|Susan Strahan (Goddard)<br>Sebastian Eastham (MIT)
+
|Jessica Haskins (MIT)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Rainout and washout update
+
|Fire related VOCs including furans
|Gan Luo(SUNY-Albany)<br>Fangqun Yu (SUNY-Albany)
+
|Lu Hu (UMT)<br>Lixu Jin (UMT)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Rediagnosis of RAS convection in GEOS-Chem
+
|Extension of UCX into the mesosphere
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
+
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|New schedule for tracer transport benchmarks (FP change, scavenging change, or major release)
+
|Methane flux ingestion
|Andrea Molod (NASA/GMAO)
+
|Eloise Marais (UCL)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Methanol as part of standard chemical mechanism
+
|Parameterized effective radius
|Dylan Millet (U Minnesota)<br>Katie Travis (NASA)
+
|Haihui Zhu (WashU)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updated cloud water pH
+
|Dust non-sphericity impacts on surface chem and optical properties
|Viral Shah (Harvard)<br>Jonathan Moch (Harvard)
+
|Inderjeet Singh (WashU)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Halogen chemistry update
+
|Size-resolved stratospheric aerosol
|Tomas Sherwen (York)<br>Xuan Wang (Harvard)<br>Shuting Zhai (UW)
+
|Seb Eastham (MIT)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Methylethylketone chemistry
+
|Extend aerosol settling
|Jared Brewer (CSU)
+
|Eloise Marais (UCL)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Add sulfate dependence to SOA yield from isoprene in simple SOA
+
|Stratospheric aerosol APM
|Elo&iuml;se Marais (Leicester)
+
|Fangqun Yu (SUNY)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Trace metal simulation
+
|Plume-in-grid model
|Junwei Xu (Dalhousie)
+
|Hongwei Sun (Harvard)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Hg gas-phase photo-reduction
+
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
|Colin Thackray (Harvard)
+
|Lee Murray (Rochester)
|Science
+
|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"
 
|-valign="top"
|Move GEOS-Chem Classic run directory creation from Unit Tester to source code
+
|Separate mixing and emissions
|GCST
+
|Bob Yantosca (Harvard)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dynamic diagnostic array size allocation based on settings in HISTORY.rc
+
|Modularization of aerosols code for interface with GOCART in GEOS
|GCST
+
|Christoph Keller (GMAO)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Removal of binary punch diagnostics
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
|GCST
+
|Bob Yantosca (Harvard)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|GCPy 1-year benchmark and continued development
+
|Improve load balancing in GCHP
|GCST
+
|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
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
|Amos Tai (CUHK)
+
|Bob Yantosca (Harvard)
|Science
+
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Canopy Physics Model
+
|Limit allocation of State_Met to what is needed per simulation
|Sam Silva (MIT)
+
|Melissa Sulprizio (Harvard)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Landcover/Fire Emissions Offline LPJlmfire
+
|Make frequency of HEMCO restart file configurable
|Loretta Mickley (Harvard)
+
|Melissa Sulprizio (Harvard)
|Science
+
|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:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+
== Longer term (12-24 months)==
  
=== Longer term (12-24 months)===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
!width="500px"|Item
+
!width="200px"|Feature
!width="200px"|Author(s)
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="300px"|Status
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Implement isotope simulation for CO and CH4 in GCHP
+
|Updates to Aromatic chemistry
|Lee Murray (Rochester)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Migrate LETFK DA scheme to GCHP
+
|Nitrate photolysis
|Kazu Miyazaki (JPL)
+
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Super fast chemistry scheme
+
|In aerosol chemistry Halogens
|Benjamin Brown-Steiner (AER)<br>Makoto Kelp (Harvard)
+
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Add non-volatile cations to ISORROPIA
+
|Benchmark box model of GC Chemistry
|Becky Alexander (UW)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Update Europe emissions to EMEP 2016
+
|Alkyl nitrates Alk7, PHAN
|Eloise Marais (Leicester)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|MEGAN3
+
|Add stratospheric ozone species to full-chemistry simulations
|Sam Silva (MIT)<br>Jen Kaiser (GIT)<br>Yuxuan Wang (UH)
+
|Lee Murray (Rochester)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|DMS oxidation scheme updating
+
|Perchlorate chemistry
|Becky Alexander (UW)<br>Qianjie Chen (UW)
+
|Yuk Chun Chan (UWAB)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Streamlining of specialty simulations through HEMCO and KPP
+
|Explicit heterogeneous sulfate chemistry
|GCST<br>Chris Holmes (FSU)<br>Colin Thackray for POPs (Harvard)<br>Peter Ivatt (York) for PAH
+
|Katie Travis (NASA)<br>Becky Alexander (UT)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Hg in WRF-GC
+
|ISORROPIA-lite
|Yanxu Zhang (Nanjing)
+
|Becky Alexander (UW)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Hg with blowing snow
+
|HOx and ozone "emissions" from lightning as option in model to play with
|Yanxu Xhang (Nanjing)
+
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updated treatment of Hg in ocean
+
|Sea salt aerosol from sea ice leads
|Chris Holmes (FSU)
+
|Hannah Horowitz (U. Illinois)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|GTMM updates
+
|Drought-stress algorithm
|Ben Geyman (Harvard)
+
|Wei Li (U. Houston)
|Science
+
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Complex / multicomplex variables
+
|Biomass burning injection height profiles
|Shannon Capps (Drexel)
+
|Inderjeet Singh (WashU)
|Structural
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Build KPP when you compile GC
+
|OCIM integration
|GCST
+
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
|Structural
+
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Restructure source code folders
+
|Updating landcover products in GEOS-Chem
|GCST
+
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
|Structural
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archived CMIP6 Met Products for GEOS-Chem Input
+
|Dry deposition physical improvement
|Lee Murray (Rochester)
+
|Chris Holmes (FSU)
|Science
+
|Dry deposition
 +
|
 +
 
 +
|-valign="top"
 +
|Extend the IMI system to other trace gases
 +
|Lucas Estrada (Harvard)
 +
|Adjoint capabilities
 
|
 
|
  
|}
 
  
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+
|-valign="top"
 +
|TOMAS WRF-GC in regional Thailand simulation
 +
|Win Trivitayanurak (Chulalongkorn U)
 +
|Aerosols
 +
|
 +
 
 +
|}
  
 
----------------
 
----------------
  
 
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
 
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''

Latest revision as of 16:43, 3 August 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 14.0.1 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
Adaptive chemical solver (as option) / KPP 3.0.0 Mike Long (Harvard)
Haipeng Lin (Harvard)
Bob Yantosca (GCST)
Lu Shen (PKU)
Chemistry Complicated
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
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
Update transport tracer simulation for consistency with the tracer gridded component in GEOS Melissa Sulprizio (Harvard) TransportTracer simulation 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
TBD

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
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
AMAP 2015 emissions from GMA2018 Helene Angot(MIT)
Ari Feinberg (MIT)
Noelle Selin (MIT)
Hg simulation Simple
  • Delivered to GCST (Jul 2022)
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 to GCST (Jun 2022)
Global continental chlorine (pCl and HCl) emissions Bingqing Zhang (Georgia Tech)
Pengfei Liu (Georgia Tech)
Emissions Simple
  • Delivered to GCST (Jul 2022)
HTAPv3 at 0.1 deg Dandan Zhang (WashU) Emissions Simple
  • Delivered to GCST (Jul 2022)
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)
Jessica Haskins (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
  • Bug issue raised by Kelvin, slated for 14.1
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 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.
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)
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
Updated biomass burning emission factors and species Tess Carter (MIT) 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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