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.
  
=== 13.0.0 ===
+
== Merged and awaiting release ==
  
<span style="color:darkorange">'''This version is now under development.  Please see [[GEOS-Chem 13#13.0.0|the ''GEOS-Chem 13'' wiki page]] for more details.'''''</span>
+
See the links below for items merged and awaiting release.
  
== Priorities not yet assigned to a particular version ==
+
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Patch version in development
 +
!width="200px"|Minor version in development
 +
 
 +
|-valign="top"
 +
|align="center"|'''[[GEOS-Chem 13.3.1]]'''
 +
|align="center"|'''[[GEOS-Chem 13.3.0]]'''
 +
 
 +
|}
  
The following items have been identified as priorities for GEOS-Chem, but have not yet been assigned to a particular GEOS-Chem version.
+
== Feature integration in progress ==
  
=== Ready to go in ===
+
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="100px"|Ease of implementation
 
!width="300px"|Notes
 
!width="300px"|Notes
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+
|[https://github.com/geoschem/geos-chem/pull/459 Updates to enable automated run directory creation]
 +
|Liam Bindle (GCST)<br>Melissa Sulprizio (GCST)
 +
|Run directory
 +
|Medium
 +
|
  
 
|-valign="top"
 
|-valign="top"
|Improved wet scavenging (Luo et al., 2020)
+
|Upgrade Fast-JX to Cloud-J
|Gan Luo (Albany)<br>Fanqun Yu (Albany)
+
|Lizzie Lundgren (GCST)
|Science
+
|Structural
 +
|Difficult
 
|
 
|
*Gan and Fangqun are ready to submit their code upon GCST's request
+
*See [https://github.com/geoschem/cloud-j geoschem/cloud-j]
  
 
|-valign="top"
 
|-valign="top"
|Implement H2 chemistry in UCX
+
|Migrating sulfate chemistry into KPP
|Chris Holmes (FSU)
+
|Mike Long (GCST)
|Science
+
|Chemistry &<br>Structural
 +
|Difficult
 
|
 
|
 +
*Complete but needs validation & further testing
 +
 +
|-valign="top"
 +
|[http://acmg.seas.harvard.edu/publications/2021/shah_est_2021.pdf Updated Hg chemistry in KPP]
 +
|Viral Shah (Harvard)<br>Colin Thackray (Harvard)<br>Mike Long (Harvard)
 +
|Chemistry
 +
|Medium
 +
|
 +
 +
|-valign="top"
 +
|Add capability to use mass fluxes in advection
 +
|Sebastian Eastham (MIT)
 +
|Transport
 +
|Easy
 +
|
 +
*Identified as a priority for GC 13, but not yet delivered
 +
*GCHP only
 +
 +
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
 +
|Melissa Sulprizio (GCST)
 +
|Emissions
 +
|Easy
 +
|
 +
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx], [https://github.com/geoschem/geos-chem/issues/331 biomass burning], and [https://github.com/geoschem/geos-chem/issues/656 volcanoes]
 +
|Lee Murray (Rochester)<br>Melissa Sulprizio (GCST)
 +
|Emissions
 +
|Easy
 +
|
 +
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/pull/945 Add option for driving GEOS-Chem with native GEOS meteorological files]
 +
|Liam Bindle (GCST)
 +
|Structural
 +
|Easy
 +
|
 +
 +
|-valign="top"
 +
|Change State_Chm%Species from 4D to vector of 3D arrays and point them to internal state in GCHP
 +
|Lizzie Lundgren (GCST)
 +
|Structural
 +
|Medium
 +
|
 +
|}
 +
 +
== Feature integration 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
 +
 +
|-valign="top"
 +
|Add PM10 diagnostic
 +
|Aerosols WG
 +
|Diagnostic
 +
|Easy
 +
|
 +
 +
|-valign="top"
 +
|[https://acp.copernicus.org/articles/21/1861/2021/ Updated Rn-222 emissions]
 +
|Bo Zhang
 +
|Emissions
 +
|Easy
 +
|
 +
*Existing Rn emissions will remain as an option
 +
*Submitted code updates built on v11-02f
 +
*Original data at https://doi.org/10.5281/zenodo.3942287
 +
 +
|-valign="top"
 +
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation]
 +
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)
 +
|Specialty simulation
 +
|Medium
 +
|
 +
*See [https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
 +
*Ideally implemented as a chemical mechanism in KPP
 +
 +
|-valign="top"
 +
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option)
 +
|Mike Long (Harvard) <br> Haipeng Lin (Harvard)
 +
|Chemistry
 +
|Difficult
 +
|
 +
*In testing
 +
 +
|}
 +
 +
== Feature integration 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
  
 
|-valign="top"
 
|-valign="top"
 
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
 
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
 
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
 
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
|Science
+
|Chemistry
 +
|Medium
 
|
 
|
 
*Delivered to GCST (Jun 2020)
 
*Delivered to GCST (Jun 2020)
  
 
|-valign="top"
 
|-valign="top"
|[http://acmg.seas.harvard.edu/publications/2020/moch_HMS_submitted_2020.pdf HMS chemistry]
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ MEGAN3]
|Jonathan Moch (Harvard)
+
|Sam Silva (MIT)
|Science
+
|Emissions
 +
|Medium
 
|
 
|
 +
*Implementation details may be found at https://zenodo.org/record/3614062#.XzvrH5NKjOR
  
 
|-valign="top"
 
|-valign="top"
|Trace metal simulation
+
|[https://acp.copernicus.org/articles/17/3699/2017/ GC-YIBs biosphere-atmospheric chemistry coupled model]
|Junwei Xu (Dalhousie)
+
|Xu Yue (NUIST)
 
|Science
 
|Science
|''Updated Aug 2020''
+
|Easy
 
+
|
|-
+
*See [https://github.com/geoschem/geos-chem/issues/425 geoschem/geos-chem #425]
!colspan="4" bgcolor="#CCFFFF"|Emissions and surface fluxes updates
+
  
|-
+
|-valign="top"
|[https://github.com/geoschem/geos-chem/pull/356 Blowing snow emissions of sea salt and bromine]
+
|[http://acmg.seas.harvard.edu/presentations/IGC9/posters/Tue_Posters_lam_joey.pdf Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
|Lyatt Jaegle (UW)
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Science
 
|Science
 +
|Easy
 
|
 
|
*Delivered to GCST (Jun 2020)
+
*Delivered to GCST (Feb 2021)
 +
*See [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
  
 
|-valign="top"
 
|-valign="top"
|Offline CLM Harmonization
+
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
|Anthony Wong (BU)<br>Jeff Geddes (BU)
+
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
|Science
+
|Chemistry
 +
|Easy
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[http://globalchange.bnu.edu.cn/research/laiv6 Updated Yuan/BNU MODIS LAI product (2000-2019)]
+
|Landcover/Fire Emissions Offline LPJlmfire
|Jenny Fisher (U. Wollongong)
+
|Loretta Mickley (Harvard)<br>Yang Li (Harvard)
|Science
+
|Emissions
 +
|Easy
 
|
 
|
*Processing scripts delivered to GCST (Aug 2020)
+
*Data files delivered to GCST (July 2021)
  
 
|-valign="top"
 
|-valign="top"
|[https://gmd.copernicus.org/articles/13/2569/2020/ MEGAN3]
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
 
|Sam Silva (MIT)
 
|Sam Silva (MIT)
 
|Science
 
|Science
 +
|Medium
 
|
 
|
*Implementation details may be found at https://zenodo.org/record/3614062#.XzvrH5NKjOR
+
*Code is available at https://zenodo.org/record/3614062
  
 
|}
 
|}
  
=== Almost there (< 6 months) ===
+
== Almost there (< 6 months) ==
 +
 
 +
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
!width="500px"|Item
+
!width="200px"|Feature
!width="200px"|Author(s)
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="300px"|Notes
+
!width="420px"|Notes
 +
 
  
 
|-valign="top"
 
|-valign="top"
|Distribute CEDS emissions vertically in the boundary layer
+
|[https://github.com/geoschem/geos-chem/issues/559 Implement H2 chemistry in UCX]
|Barron Henderson (EPA)<br>GCST
+
|Chris Holmes (FSU)
|Structural &<br>Science
+
|Chemistry
 
|
 
|
 +
*Identified as a priority for GC 13, but not yet delivered
 +
  
 
|-valign="top"
 
|-valign="top"
|Provide climatologies for lightning NOx, volcano, and open fire emissions
+
|[https://iopscience.iop.org/article/10.1088/1748-9326/ac16a3 New soil NOx parameterization]
|GCST
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|C2H4 and C2H2 chemistry
+
|[[Grid-independent_emissions|Updated offline biogenic emissions]]
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
+
|Hongjian Weng (PKU)
|Science
+
|Emissions
|''Updated Sep 2020''
+
|
 +
*Identified as a priority for GC 13, but not yet delivered
  
 
|-valign="top"
 
|-valign="top"
|Diagnostic to archive XCO2, XCO, and XCH4
+
|[[Grid-independent_emissions|Updated offline sea salt emissions]]
|Dylan Jones (Toronto)
+
|Hongjian Weng (PKU)
|Science
+
|Emissions
 
|
 
|
 +
*Identified as a priority for GC 13, but not yet delivered
  
 
|-valign="top"
 
|-valign="top"
|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
+
|[[Grid-independent_emissions|Updated offline soil NOx emissions]]
|Kazu Miyazaki (JPL)
+
|Hongjian Weng (PKU)
|Science
+
|Emissions
 
|
 
|
 +
*Identified as a priority for GC 13, but not yet delivered
  
 
|-valign="top"
 
|-valign="top"
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+
|Provide recommended rather than hard-coded scaling factors for online emissions
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
+
|GCST
|Science
+
|Emissions
 
|
 
|
 +
*Identified as a priority for GC 13, but not yet developed
  
 
|-valign="top"
 
|-valign="top"
|BrC aging
+
|Diagnostic to archive XCO2, XCO, and XCH4
|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
+
|Dylan Jones (Toronto)
|Science
+
|Diagnostic
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Update of US emissions to NEI16
+
|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
|Barron Henderson (EPA)
+
|Kazu Miyazaki (JPL)
|Science
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|One-Way Coupling w/ GISS ModelE3
+
|BrC aging
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
|Structural
+
|Chemistry
 
|
 
|
  
Line 157: Line 296:
 
|Shared Socioeconomic Pathways Emission Inventories
 
|Shared Socioeconomic Pathways Emission Inventories
 
|Hong Liao (NUIST)
 
|Hong Liao (NUIST)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
+
|Rediagnosis of RAS convection in GEOS-Chem
|Amos Tai (CUHK)
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
|Science
+
|Convection
|''Updated Aug 2020''
+
|
 +
*Work is finished and a manuscript is in preparation.
  
 
|-valign="top"
 
|-valign="top"
|GC-YIBs biosphere-atmospheric chemistry coupled model
+
|Change GCHP advection inputs to use total pressure and mixing ratio rather than dry
|Xu Yue (NUIST)
+
|Sebastian Eastham (MIT)
|Science
+
|Transport
|''Updated Aug 2020''
+
|
 +
*Identified as a priority for GC 13, but not yet delivered
 +
*GCHP only
  
 +
|-valign="top"
 +
|HTAPv3 emissions (0.1 deg, 2002-2018)
 +
|Emissions & Deposition WG
 +
|Emissions
 +
|
  
 
|-valign="top"
 
|-valign="top"
|Rediagnosis of RAS convection in GEOS-Chem
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
+
|GCST
|Science
+
|Chemistry
|''Updated Aug 2020''
+
|
*Work is finished and a manuscript is in preparation.
+
  
 
|}
 
|}
  
=== 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"|Notes
+
!width="420px"|Notes
 
+
 
+
|-valign="top"
+
|Aromatic VOC chemistry
+
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
+
|Science
+
|''Updated Sep 2020''
+
 
+
|-valign="top"
+
|Update OCS simulation in the standard code
+
|Kevin Bowman (JPL)
+
|Science
+
|
+
  
 
|-valign="top"
 
|-valign="top"
 
|Methylethylketone chemistry
 
|Methylethylketone chemistry
 
|Jared Brewer (CSU)
 
|Jared Brewer (CSU)
|Science
+
|Chemistry
 
|
 
|
  
Line 213: Line 348:
 
|Add sulfate dependence to SOA yield from isoprene in simple SOA
 
|Add sulfate dependence to SOA yield from isoprene in simple SOA
 
|Eloise Marais (Leicester)
 
|Eloise Marais (Leicester)
|Science
+
|Chemistry
 
|
 
|
 
|-valign="top"
 
|Updated Hg chemistry:
 
*Streamlining of Hg simulation through HEMCO and KPP
 
*Hg gas-phase photo-reduction
 
|Viral Shah (Harvard)<br>Colin Thackray (Harvard)
 
|Science
 
|''Updated July 2020''
 
  
 
|-valign="top"
 
|-valign="top"
 
|GTMM updates
 
|GTMM updates
 
|Ben Geyman (Harvard)
 
|Ben Geyman (Harvard)
|Science
+
|Hg simulation
|''Updated Aug 2020''
+
|
 +
 
  
 
|-valign="top"
 
|-valign="top"
|Canopy Physics Model
+
|[https://github.com/geoschem/GCHP/issues/19 Integrating GMAO's tracer gridded component in GCHP]
|Sam Silva (MIT)
+
|Christoph Keller (NASA GMAO)
|Structural
+
|Transport Tracer simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Landcover/Fire Emissions Offline LPJlmfire
+
|Streamlining of specialty simulations through HEMCO and KPP
|Loretta Mickley (Harvard)
+
|GCST
|Science
+
|Chemistry, Specialty simulations
 
|
 
|
  
 
|}
 
|}
  
=== 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"|Notes
+
!width="420px"|Notes
  
 
|-valign="top"
 
|-valign="top"
 
|Implement isotope simulation for CO and CH4 in GCHP
 
|Implement isotope simulation for CO and CH4 in GCHP
 
|Lee Murray (Rochester)
 
|Lee Murray (Rochester)
|Science
+
|Specialty simulation
 
|
 
|
  
Line 262: Line 391:
 
|Migrate LETFK DA scheme to GCHP
 
|Migrate LETFK DA scheme to GCHP
 
|Kazu Miyazaki (JPL)
 
|Kazu Miyazaki (JPL)
|Science
+
|Structural
 
|
 
|
  
Line 268: Line 397:
 
|Super fast chemistry scheme  
 
|Super fast chemistry scheme  
 
|Benjamin Brown-Steiner (AER)<br>Makoto Kelp (Harvard)
 
|Benjamin Brown-Steiner (AER)<br>Makoto Kelp (Harvard)
|Science
+
|Chemistry
 
|
 
|
 +
*SF mechanism has been implemented and benchmarked in GEOS-Chem 12.0.0. This mechanism is of interest for those groups wanting fast global simulation of oxidation fields in GEOS-Chem simulations focused on aerosol microphysics.
 +
*The machine-learned chemical solver is still probably 12 months away from online implementation into GEOS-Chem.
  
 
|-valign="top"
 
|-valign="top"
 
|Add non-volatile cations to ISORROPIA
 
|Add non-volatile cations to ISORROPIA
 
|Becky Alexander (UW)
 
|Becky Alexander (UW)
|Science
+
|Aerosols
|''Updated Aug 2020''
+
 
+
|-valign="top"
+
|Update Europe emissions to EMEP 2016
+
|Eloise Marais (Leicester)
+
|Science
+
 
|
 
|
  
Line 286: Line 411:
 
|DMS oxidation scheme updating
 
|DMS oxidation scheme updating
 
|Becky Alexander (UW)<br>Qianjie Chen (UW)
 
|Becky Alexander (UW)<br>Qianjie Chen (UW)
|Science
+
|Chemistry
|''Updated Aug 2020''
+
|
 
*Delayed - implemented pre-KPP
 
*Delayed - implemented pre-KPP
 
*Currently bring implemented in KPP by UC Riverside group
 
*Currently bring implemented in KPP by UC Riverside group
Line 294: Line 419:
 
|Heterogeneous sulfate production
 
|Heterogeneous sulfate production
 
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
 
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
|Science
+
|Chemistry
|''Updated Aug 2020''
+
|
 
*Delayed - implemented pre-KPP
 
*Delayed - implemented pre-KPP
 
|-valign="top"
 
|Streamlining of specialty simulations through HEMCO and KPP
 
|GCST<br>Chris Holmes (FSU)<br>Peter Ivatt (York) for PAH<br>Beata Bukosa (Wollongong) for joint CO-CO2-CH4
 
|Science
 
|
 
  
 
|-valign="top"
 
|-valign="top"
 
|Hg in WRF-GC
 
|Hg in WRF-GC
 
|Yanxu Zhang (Nanjing)
 
|Yanxu Zhang (Nanjing)
|Science
+
|Hg simulation
|''Updated Aug 2020''
+
|
  
 
|-valign="top"
 
|-valign="top"
 
|Hg with blowing snow
 
|Hg with blowing snow
 
|Yanxu Xhang (Nanjing)
 
|Yanxu Xhang (Nanjing)
|Science
+
|Emissions, Hg simulation
|''Updated Aug 2020''
+
|
  
 
|-valign="top"
 
|-valign="top"
 
|Hg isotopes
 
|Hg isotopes
 
|Xiaotian Xu, Yanxu Xhang (Nanjing)
 
|Xiaotian Xu, Yanxu Xhang (Nanjing)
|Science
+
|Hg simulation
|''Added Aug 2020''
+
|
  
 
|-valign="top"
 
|-valign="top"
 
|Hg in CESM CAM-CHEM
 
|Hg in CESM CAM-CHEM
 
|Peng Zhang, Yanxu Xhang (Nanjing)
 
|Peng Zhang, Yanxu Xhang (Nanjing)
|Science
+
|Hg simulation
|''Added Aug 2020''
+
 
+
|-valign="top"
+
|Updated treatment of Hg in ocean
+
|Chris Holmes (FSU)
+
|Science
+
 
|
 
|
  
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|Shannon Capps (Drexel)
 
|Shannon Capps (Drexel)
 
|Structural
 
|Structural
|
 
 
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|Archived CMIP6 Met Products for GEOS-Chem Input
 
|Lee Murray (Rochester)
 
|Science
 
 
|
 
|
  

Revision as of 14:02, 21 October 2021

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 Minor version in development
GEOS-Chem 13.3.1 GEOS-Chem 13.3.0

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
Updates to enable automated run directory creation Liam Bindle (GCST)
Melissa Sulprizio (GCST)
Run directory Medium
Upgrade Fast-JX to Cloud-J Lizzie Lundgren (GCST) Structural Difficult
Migrating sulfate chemistry into KPP Mike Long (GCST) Chemistry &
Structural
Difficult
  • Complete but needs validation & further testing
Updated Hg chemistry in KPP Viral Shah (Harvard)
Colin Thackray (Harvard)
Mike Long (Harvard)
Chemistry Medium
Add capability to use mass fluxes in advection Sebastian Eastham (MIT) Transport Easy
  • Identified as a priority for GC 13, but not yet delivered
  • GCHP only


Provide climatologies for open fire emissions Melissa Sulprizio (GCST) Emissions Easy
Climatologies for lightning NOx, biomass burning, and volcanoes Lee Murray (Rochester)
Melissa Sulprizio (GCST)
Emissions Easy
Add option for driving GEOS-Chem with native GEOS meteorological files Liam Bindle (GCST) Structural Easy
Change State_Chm%Species from 4D to vector of 3D arrays and point them to internal state in GCHP Lizzie Lundgren (GCST) Structural Medium

Feature integration 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
Add PM10 diagnostic Aerosols WG Diagnostic Easy
Updated Rn-222 emissions Bo Zhang Emissions Easy
Joint CO2-CO-CH4-OCS simulation Beata Bukosa (NIWA)
Kevin Bowman (JPL)
Specialty simulation Medium
Adaptive chemical solver (as option) Mike Long (Harvard)
Haipeng Lin (Harvard)
Chemistry Difficult
  • In testing

Feature integration 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
Stratospheric HCN chemistry Armin Kleinbohl (JPL)
Debra Weisenstein (Harvard, retired)
Chemistry Medium
  • Delivered to GCST (Jun 2020)
MEGAN3 Sam Silva (MIT) Emissions Medium
GC-YIBs biosphere-atmospheric chemistry coupled model Xu Yue (NUIST) Science Easy
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam(CUHK)
Amos Tai (CUHK)
Science Easy
Extend UCX into the mesosphere Sebastian Eastham (MIT)
Eric Fleming (NASA GMAO)
Chemistry Easy
Landcover/Fire Emissions Offline LPJlmfire Loretta Mickley (Harvard)
Yang Li (Harvard)
Emissions Easy
  • Data files delivered to GCST (July 2021)
Canopy Physics Model Sam Silva (MIT) Science Medium

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


Implement H2 chemistry in UCX Chris Holmes (FSU) Chemistry
  • Identified as a priority for GC 13, but not yet delivered


New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa)
Emissions
Updated offline biogenic emissions Hongjian Weng (PKU) Emissions
  • Identified as a priority for GC 13, but not yet delivered
Updated offline sea salt emissions Hongjian Weng (PKU) Emissions
  • Identified as a priority for GC 13, but not yet delivered
Updated offline soil NOx emissions Hongjian Weng (PKU) Emissions
  • Identified as a priority for GC 13, but not yet delivered
Provide recommended rather than hard-coded scaling factors for online emissions GCST Emissions
  • Identified as a priority for GC 13, but not yet developed
Diagnostic to archive XCO2, XCO, and XCH4 Dylan Jones (Toronto) Diagnostic
Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations Kazu Miyazaki (JPL) Input data
BrC aging Xuan Wang (Harvard)
Melanie Hammer(Dalhousie)
Chemistry
Shared Socioeconomic Pathways Emission Inventories Hong Liao (NUIST) Emissions
Rediagnosis of RAS convection in GEOS-Chem Tailong He (Toronto)
Dylan Jones (Toronto)
Andrea Molod (NASA/GMAO)
Convection
  • Work is finished and a manuscript is in preparation.
Change GCHP advection inputs to use total pressure and mixing ratio rather than dry Sebastian Eastham (MIT) Transport
  • Identified as a priority for GC 13, but not yet delivered
  • GCHP only
HTAPv3 emissions (0.1 deg, 2002-2018) Emissions & Deposition WG Emissions
Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism GCST Chemistry

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
Methylethylketone chemistry Jared Brewer (CSU) Chemistry
Add sulfate dependence to SOA yield from isoprene in simple SOA Eloise Marais (Leicester) Chemistry
GTMM updates Ben Geyman (Harvard) Hg simulation


Integrating GMAO's tracer gridded component in GCHP Christoph Keller (NASA GMAO) Transport Tracer simulation
Streamlining of specialty simulations through HEMCO and KPP GCST Chemistry, Specialty simulations

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
Implement isotope simulation for CO and CH4 in GCHP Lee Murray (Rochester) Specialty simulation
Migrate LETFK DA scheme to GCHP Kazu Miyazaki (JPL) Structural
Super fast chemistry scheme Benjamin Brown-Steiner (AER)
Makoto Kelp (Harvard)
Chemistry
  • SF mechanism has been implemented and benchmarked in GEOS-Chem 12.0.0. This mechanism is of interest for those groups wanting fast global simulation of oxidation fields in GEOS-Chem simulations focused on aerosol microphysics.
  • The machine-learned chemical solver is still probably 12 months away from online implementation into GEOS-Chem.
Add non-volatile cations to ISORROPIA Becky Alexander (UW) Aerosols
DMS oxidation scheme updating Becky Alexander (UW)
Qianjie Chen (UW)
Chemistry
  • Delayed - implemented pre-KPP
  • Currently bring implemented in KPP by UC Riverside group
Heterogeneous sulfate production Lin Zhang (PKU)
Becky Alexander (UW)
Yuxuan Wang (U. Houston)
Chemistry
  • Delayed - implemented pre-KPP
Hg in WRF-GC Yanxu Zhang (Nanjing) Hg simulation
Hg with blowing snow Yanxu Xhang (Nanjing) Emissions, Hg simulation
Hg isotopes Xiaotian Xu, Yanxu Xhang (Nanjing) Hg simulation
Hg in CESM CAM-CHEM Peng Zhang, Yanxu Xhang (Nanjing) Hg simulation
Complex / multicomplex variables Shannon Capps (Drexel) Structural

GEOS-Chem Main Page | GCHP Main Page