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]].
  
== GEOS-Chem versions in development ==
+
== Release schedule ==
  
=== 13.0.0 ===
+
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.  
  
<span style="color:darkorange">'''See the [[GEOS-Chem 13.0.0]] page for more details.'''''</span>
+
== Merged and awaiting release ==
  
== Priorities assigned to upcoming GEOS-Chem versions ==
+
See the links below for items merged and awaiting release.
 
+
=== 13.1.0 ===
+
 
+
This version will require a 1-month full-chemistry benchmark.
+
  
 
{| border=1 cellspacing=0 cellpadding=5  
 
{| border=1 cellspacing=0 cellpadding=5  
 
|-bgcolor="#CCCCCC"
 
|-bgcolor="#CCCCCC"
!width="500px"|Feature
+
!width="200px"|Patch version in development
!width="200px"|Submitted by
+
!width="200px"|Major version in development
!width="100px"|Type
+
!width="300px"|Notes
+
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/HEMCO/issues/46 Distribute emissions vertically in the boundary layer]
+
|align="center"| -
|Barron Henderson (EPA)<br>GCST
+
|align="center"|'''[[GEOS-Chem 14.0.0]]'''
|Structural &<br>Science
+
|
+
*Vertical profiles have been delivered to GCST
+
  
|-valign="top"
+
|}
|[https://pubs.acs.org/doi/10.1021/acs.est.8b07241 Diurnal scale factors of power plants emissions in China]
+
 
|Hongjian Weng (PKU)<br>Jintai Lin (PKU)
+
== Feature integration in progress ==
|Science
+
 
|
+
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.
*See [https://github.com/geoschem/geos-chem/issues/548 geoschem/geos-chem #548]
+
 
 +
{| 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"
|[https://github.com/geoschem/geos-chem/pull/615 Restore J-values for the planeflight diagnostic]
+
|[https://github.com/geoschem/GCHP/pull/214 Upgrade GMAO libraries in GCHP]
|Tomas Sherwen (York)
+
|Liam Bindle (GCST) <br> Lizzie Lundgren (GCST)
 
|Structural
 
|Structural
 +
|Easy
 
|
 
|
 +
*Done, slated for 14.0.0
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/pull/364 Initial modifications for HEMCO internal grid]
+
|[https://github.com/geoschem/geos-chem/pull/1198 Fixes to remove differences when restarting the model]
|Haipeng Lin (Harvard)
+
|Lizzie Lundgren (GCST)
|Structural
+
|Bug fixes
 +
|Medium
 
|
 
|
 +
*Done for GCHP, slated for 14.0.0
 +
*More fixes for GC-Classic will be a later update
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/GCHP/pull/71 Initial modifications for GCHP adjoint - CO2 simulation]
+
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation]
|Colin Lee (CUBoulder)
+
|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"
|[https://github.com/geoschem/GCHP/issues/55 Update GMAO submodules in GCHP]
+
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
|GCST
+
|Melissa Sulprizio (GCST)
|Structural
+
|Emissions
 +
|Easy
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to speed up the chemical solver
+
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx]
#[https://github.com/geoschem/geos-chem/issues/598 Remove useless computations from reaction rate-law functions]
+
|Lee Murray (Rochester)<br>Melissa Sulprizio (GCST)
#[https://github.com/geoschem/geos-chem/pull/496 Use <tt>!$OMP COLLAPSE(3)</tt> to vectorize the parallel loop in DO_FLEXCHEM]
+
|Emissions
|GCST<br>Chris Holmes (FSU)
+
|Easy
|Structural
+
 
|
 
|
 
|}
 
 
=== 13.2.0 ===
 
 
This version will require a 1-month and 1-year full-chemistry benchmarks, with and without Luo wet deposition.
 
 
{| border=1 cellspacing=0 cellpadding=5
 
|-bgcolor="#CCCCCC"
 
!width="500px"|Feature
 
!width="200px"|Submitted by
 
!width="100px"|Type
 
!width="300px"|Notes
 
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/547 Update US emissions to NEI2016]
+
|[[Grid-independent_emissions|Updated offline biogenic emissions]]
|Barron Henderson (EPA)<br>Lyssa Freese (MIT)
+
|Hongjian Weng (PKU)
|Science
+
|Emissions
 +
|Easy
 
|
 
|
*Files available at [ftp://newftp.epa.gov/Air/aqmg/global/NEI2016fh/ this ftp site]. Barron writes, "They have not yet been used in a publication, so I caution users to look for anything and report back."
+
*Delivered to GCST (Dec 2021)
  
 
|-valign="top"
 
|-valign="top"
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
+
|[[Grid-independent_emissions|Updated offline soil NOx emissions]]
|Sam Silva (MIT)
+
|Hongjian Weng (PKU)
|Structural
+
|Emissions
 +
|Easy
 
|
 
|
 +
*Delivered to GCST (Dec 2021)
  
 
|-valign="top"
 
|-valign="top"
|[https://gmd.copernicus.org/articles/13/2879/2020/ Improved wet scavenging from Luo et al. (2020)] (as option)
+
|[https://github.com/geoschem/geos-chem/discussions/1022 Add new species concentration diagnostic in units of molec/cm3]
|Gan Luo (Albany)<br>Fangqun Yu (Albany)
+
|GCST
|Science
+
|Diagnostics
 +
|Easy
 
|
 
|
*Delivered to GCST (Nov 2020)
+
*See [https://github.com/geoschem/geos-chem/issues/1022 geoschem/geos-chem #1022]
*See [https://github.com/geoschem/geos-chem/pull/522 geoschem/geos-chem PR #522]
+
*These updates will replace the Luo et al. (2019) option
+
 
+
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for lightning NOx, volcano, and open fire emissions]
+
|[https://github.com/geoschem/geos-chem/issues/770 Output satellite diagnostics as NetCDF]
|GCST
+
|Eloise Marais (UCL)
|Science
+
|Diagnostics
 +
|Easy
 
|
 
|
 +
*See [https://github.com/geoschem/geos-chem/pull/1134 geoschem/geos-chem #1134]
  
 
|-valign="top"
 
|-valign="top"
|[https://www.sciencedirect.com/science/article/abs/pii/S1352231019305138?via%3Dihub Trace metal simulation]
+
|Upgrade Fast-JX to Cloud-J
|Junwei Xu (Dalhousie)
+
|Lizzie Lundgren (GCST)
|Science
+
|Structural
 +
|Difficult
 
|
 
|
*Delivered to GCST (Nov 2020)
+
* [https://github.com/geoschem/cloud-j geoschem/cloud-j]
*See [https://github.com/geoschem/geos-chem/pull/511 geoschem/geos-chem PR #511]
+
*Ongoing
  
 
|}
 
|}
  
=== 13.3.0 ===
+
== Feature integration in the queue ==
  
This version will require a 1-month and 1-year full-chemistry benchmarks, with and without the adaptive chemical solver.
+
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"|Notes
+
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
|-valign="top"
 
|[https://github.com/geoschem/geos-chem/issues/560 C2H4 and C2H2 chemistry]
 
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
 
|Science
 
|
 
  
 
|-valign="top"
 
|-valign="top"
|[http://acmg.seas.harvard.edu/publications/2020/moch_2020_hms_global.pdf HMS chemistry]
+
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option)
|Jonathan Moch (Harvard)
+
|Mike Long (Harvard) <br> Haipeng Lin (Harvard) <br> Bob Yantosca (GCST) <br> Lu Shen (PKU)
|Science
+
|Chemistry
 +
|Difficult
 
|
 
|
*Delivered to GCST (Sep 2020)
+
*In testing, publication expected in mid-to-late 2022
*See [https://github.com/geoschem/geos-chem/pull/456 geoschem/geos-chem PR #456]
+
*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]
 
+
|-
+
|[https://acp.copernicus.org/articles/17/3699/2017/ Blowing snow emissions of sea salt and sea salt bromide]
+
|Lyatt Jaegle (UW)
+
|Science
+
|
+
*Delivered to GCST (Jun 2020)
+
*See [https://github.com/geoschem/geos-chem/pull/356 geoschem/geos-chem PR #356]
+
  
 
|-valign="top"
 
|-valign="top"
|[https://www.pnas.org/content/117/42/26076 Updated aerosol dry deposition]
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ MEGAN3]
|Jeff Pierce (CSU)
+
|Sam Silva (MIT)
|Science
+
|Emissions
|
+
|Medium
*See [https://github.com/geoschem/geos-chem/issues/604 geoschem/geos-chem #604]
+
|-valign="top"
+
|[http://globalchange.bnu.edu.cn/research/laiv6 Updated Yuan/BNU MODIS LAI product (2000-2019)]
+
|Jenny Fisher (U. Wollongong)
+
|Science
+
 
|
 
|
*Processing scripts delivered to GCST (Aug 2020)
+
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
 +
*Sam Silva and GCST will work on updating this to a more recent GEOS-Chem version in the near future
  
 
|-valign="top"
 
|-valign="top"
|[https://acp.copernicus.org/articles/21/1861/2021/ Updated Rn-222 emissions]
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
|Bo Zhang
+
|Sam Silva (MIT)
|Science
+
|Emissions &<br>Science
|
+
|Medium
*The existing Rn emissions will remain as an option
+
*Data are available at https://doi.org/10.5281/zenodo.3942287
+
 
+
|-valign="top"
+
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option)
+
|Lu Shen (Harvard)
+
|Science
+
 
|
 
|
 +
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
 +
*Sam Silva and GCST will work on updating this to a more recent GEOS-Chem version in the near future
  
 
|}
 
|}
  
== Priorities not yet assigned to a particular version ==
+
== Feature integration not yet prioritized ==
  
The following items have been identified as priorities for GEOS-Chem, but have not yet been assigned to a particular GEOS-Chem version.
+
Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integrating into the model.
 
+
=== Ready to go in ===
+
  
 
{| 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"|Notes
+
!width="100px"|Ease of implementation
 
+
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/issues/559 Implement H2 chemistry in UCX]
+
|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]
|Chris Holmes (FSU)
+
|Seb Eastham (MIT)
 
|Science
 
|Science
 +
|Medium
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/issues/1094 geoschem/geos-chem #1094]
  
 
|-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"
|[https://gmd.copernicus.org/articles/13/2569/2020/ MEGAN3]
+
|[https://gmd.copernicus.org/articles/13/1137/2020/ GC-YIBs biosphere-atmospheric chemistry coupled model]
|Sam Silva (MIT)
+
|Xu Yue (NUIST)
 
|Science
 
|Science
 +
|Easy
 
|
 
|
*Implementation details may be found at https://zenodo.org/record/3614062#.XzvrH5NKjOR
+
* [https://github.com/geoschem/geos-chem/issues/425 geoschem/geos-chem #425]
  
 
|-valign="top"
 
|-valign="top"
|[https://acp.copernicus.org/articles/17/3699/2017/ GC-YIBs biosphere-atmospheric chemistry coupled model]
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
|Xu Yue (NUIST)
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Science
 
|Science
 +
|Easy
 
|
 
|
*See [https://github.com/geoschem/geos-chem/issues/425 geoschem/geos-chem #425]
+
*Delivered to GCST (Feb 2021)
 +
* [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
  
 
|-valign="top"
 
|-valign="top"
 
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
 
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
 
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
 
|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
|Science
+
|Chemistry
 +
|Easy
 
|
 
|
 
  
 
|-valign="top"
 
|-valign="top"
|Archived CMIP6 Met Products for GEOS-Chem Input
+
|Landcover/Fire Emissions Offline LPJlmfire
|Lee Murray (Rochester)
+
|Loretta Mickley (Harvard)<br>Yang Li (Harvard)
|Science
+
|Emissions
 +
|Easy
 
|
 
|
*See updates from [http://acmg.seas.harvard.edu/geos/word_pdf_docs/steering_cmte/gc_sc_minutes_24Feb2021.pdf Feb 2021 GCSC meeting]
+
*Data files delivered to GCST (July 2021)
*Official announcement coming soon
+
  
 
|}
 
|}
  
=== Almost there (< 6 months) ===
+
== Almost there (< 6 months) ==
  
{| border=1 cellspacing=0 cellpadding=5
+
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"
 
|- 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 and References
  
 
|-valign="top"
 
|-valign="top"
|Fix stratospheric flooding
+
|[https://github.com/geoschem/geos-chem/issues/559 Implement H2 chemistry in UCX]
|Sebastian Eastham (MIT)
+
|Chris Holmes (FSU)
|Science/Bug fix
+
|Chemistry
 
|
 
|
 +
*Identified as a priority for GC 13, but not yet delivered
  
 
|-valign="top"
 
|-valign="top"
|Diagnostic to archive XCO2, XCO, and XCH4
+
|[https://iopscience.iop.org/article/10.1088/1748-9326/ac16a3 New soil NOx parameterization]
|Dylan Jones (Toronto)
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
+
|[[Grid-independent_emissions|Updated offline sea salt emissions]]
|Kazu Miyazaki (JPL)
+
|Hongjian Weng (PKU)
|Science
+
|Emissions
 
|
 
|
 +
*Identified as a priority for GC 13, but not yet delivered
  
 
|-valign="top"
 
|-valign="top"
|Aromatic VOC chemistry
+
|Provide recommended rather than hard-coded scaling factors for online emissions
|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
+
|GCST
|Science
+
|Emissions
 
|
 
|
 +
*Identified as a priority for GC 13, but not yet developed
  
 
|-valign="top"
 
|-valign="top"
|BrC aging
+
|Add stratospheric ozone species to full-chemistry simulations
|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
+
|Lee Murray (Rochester)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|One-Way Coupling w/ GISS ModelE3
+
|Diagnostic to archive XCO2, XCO, and XCH4
|Lee Murray (Rochester)
+
|Dylan Jones (Toronto)
|Structural
+
|Diagnostic
 
|
 
|
*Work is finished and a manuscript is in preparation
 
  
 
|-valign="top"
 
|-valign="top"
|Shared Socioeconomic Pathways Emission Inventories
+
|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
|Hong Liao (NUIST)
+
|Kazu Miyazaki (JPL)
|Science
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
+
|BrC aging
|Amos Tai (CUHK)
+
|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
|Science
+
|Chemistry
 
|
 
|
  
 +
|-valign="top"
 +
|Shared Socioeconomic Pathways Emission Inventories
 +
|Hong Liao (NUIST)
 +
|Emissions
 +
|
  
 
|-valign="top"
 
|-valign="top"
 
|Rediagnosis of RAS convection in GEOS-Chem
 
|Rediagnosis of RAS convection in GEOS-Chem
 
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
 
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
|Science
+
|Convection
 
|
 
|
 
*Work is finished and a manuscript is in preparation.  
 
*Work is finished and a manuscript is in preparation.  
  
 
|-valign="top"
 
|-valign="top"
|Read-in of native GEOS output in GCHP
+
|HTAPv3 emissions (0.1 deg, 2002-2018)
|WUStL GCST
+
|Emissions & Deposition WG
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Adoption of the Spack package manager for dependency management
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
|Harvard GCST
+
|GCST
|Structural
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Modularization of GEOS-Chem: FAST-JX as proof-of-concept
+
|Updated parameterization of aerosol size distribution for bulk aerosol simulations
|NASA GMAO
+
|Haihui Zhu (WashU)<br>Shixian Zhai (Harvard)
|Structural
+
|Aerosols
 
|
 
|
  
 
|}
 
|}
  
=== 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 and References
 
+
|-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
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
 
|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 (UCL)
|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
+
 
|
 
|
  
Line 364: Line 341:
 
|GTMM updates
 
|GTMM updates
 
|Ben Geyman (Harvard)
 
|Ben Geyman (Harvard)
|Science
+
|Hg simulation
 
|
 
|
  
|-valign="top"
 
|Landcover/Fire Emissions Offline LPJlmfire
 
|Loretta Mickley (Harvard)
 
|Science
 
|
 
 
|-valign="top"
 
|[https://www.pnas.org/content/117/42/26076 Aerosol dry deposition updates]
 
|Jeff Pierce (CSU)
 
|Science
 
|
 
  
 
|-valign="top"
 
|-valign="top"
 
|[https://github.com/geoschem/GCHP/issues/19 Integrating GMAO's tracer gridded component in GCHP]
 
|[https://github.com/geoschem/GCHP/issues/19 Integrating GMAO's tracer gridded component in GCHP]
 
|Christoph Keller (NASA GMAO)
 
|Christoph Keller (NASA GMAO)
|Structural
+
|Transport Tracer simulation
|
+
 
+
|-valign="top"
+
|Mass flux-based transport in GCHP
+
|Sebastian Eastham (MIT)
+
|Science
+
|
+
 
+
|-valign="top"
+
|Streamlining of specialty simulations through HEMCO and KPP
+
|GCST
+
|Science
+
 
|
 
|
  
 
|}
 
|}
  
=== 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 and References
 
+
|-valign="top"
+
|GCHP Adjoint
+
|Daven Henze (CU Boulder)
+
|Science
+
|
+
  
 
|-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 423: Line 372:
 
|Migrate LETFK DA scheme to GCHP
 
|Migrate LETFK DA scheme to GCHP
 
|Kazu Miyazaki (JPL)
 
|Kazu Miyazaki (JPL)
|Science
+
|Structural
 
|
 
|
  
Line 429: Line 378:
 
|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.  
 
*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.  
Line 437: Line 386:
 
|Add non-volatile cations to ISORROPIA
 
|Add non-volatile cations to ISORROPIA
 
|Becky Alexander (UW)
 
|Becky Alexander (UW)
|Science
+
|Aerosols
 
|
 
|
  
Line 443: Line 392:
 
|DMS oxidation scheme updating
 
|DMS oxidation scheme updating
 
|Becky Alexander (UW)<br>Qianjie Chen (UW)
 
|Becky Alexander (UW)<br>Qianjie Chen (UW)
|Science
+
|Chemistry
 
|
 
|
 
*Delayed - implemented pre-KPP
 
*Delayed - implemented pre-KPP
Line 451: Line 400:
 
|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
 
|
 
|
 
*Delayed - implemented pre-KPP
 
*Delayed - implemented pre-KPP
Line 458: Line 407:
 
|Hg in WRF-GC
 
|Hg in WRF-GC
 
|Yanxu Zhang (Nanjing)
 
|Yanxu Zhang (Nanjing)
|Science
+
|Hg simulation
 
|
 
|
  
Line 464: Line 413:
 
|Hg with blowing snow
 
|Hg with blowing snow
 
|Yanxu Xhang (Nanjing)
 
|Yanxu Xhang (Nanjing)
|Science
+
|Emissions, Hg simulation
 
|
 
|
  
Line 470: Line 419:
 
|Hg isotopes
 
|Hg isotopes
 
|Xiaotian Xu, Yanxu Xhang (Nanjing)
 
|Xiaotian Xu, Yanxu Xhang (Nanjing)
|Science
+
|Hg simulation
 
|
 
|
  
Line 476: Line 425:
 
|Hg in CESM CAM-CHEM
 
|Hg in CESM CAM-CHEM
 
|Peng Zhang, Yanxu Xhang (Nanjing)
 
|Peng Zhang, Yanxu Xhang (Nanjing)
|Science
+
|Hg simulation
 
|
 
|
  

Latest revision as of 23:21, 12 May 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
Upgrade GMAO libraries in GCHP Liam Bindle (GCST)
Lizzie Lundgren (GCST)
Structural Easy
  • Done, slated for 14.0.0
Fixes to remove differences when restarting the model Lizzie Lundgren (GCST) Bug fixes Medium
  • Done for GCHP, slated for 14.0.0
  • More fixes for GC-Classic will be a later update
Joint CO2-CO-CH4-OCS simulation Beata Bukosa (NIWA)
Kevin Bowman (JPL)
Mike Long (Harvard)
Specialty simulation Medium
Provide climatologies for open fire emissions Melissa Sulprizio (GCST) Emissions Easy
Climatologies for lightning NOx Lee Murray (Rochester)
Melissa Sulprizio (GCST)
Emissions Easy
Updated offline biogenic emissions Hongjian Weng (PKU) Emissions Easy
  • Delivered to GCST (Dec 2021)
Updated offline soil NOx emissions Hongjian Weng (PKU) Emissions Easy
  • Delivered to GCST (Dec 2021)
Add new species concentration diagnostic in units of molec/cm3 GCST Diagnostics Easy
Output satellite diagnostics as NetCDF Eloise Marais (UCL) Diagnostics Easy
Upgrade Fast-JX to Cloud-J Lizzie Lundgren (GCST) Structural Difficult

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 and References


Adaptive chemical solver (as option) Mike Long (Harvard)
Haipeng Lin (Harvard)
Bob Yantosca (GCST)
Lu Shen (PKU)
Chemistry Difficult
MEGAN3 Sam Silva (MIT) Emissions Medium
  • DOI: 10.5281/zenodo.3614062
  • Sam Silva and GCST will work on updating this to a more recent GEOS-Chem version in the near future
Canopy Physics Model Sam Silva (MIT) Emissions &
Science
Medium
  • DOI: 10.5281/zenodo.3614062
  • Sam Silva and GCST will work on updating this to a more recent GEOS-Chem version in the near future

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 and References
Stratospheric adjustment with RRTMG in GEOS-Chem Seb Eastham (MIT) Science Medium
Stratospheric HCN chemistry Armin Kleinbohl (JPL)
Debra Weisenstein (Harvard, retired)
Chemistry Medium
  • Delivered to GCST (Jun 2020)
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)

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
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 sea salt 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
Add stratospheric ozone species to full-chemistry simulations Lee Murray (Rochester) Chemistry
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.
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
Updated parameterization of aerosol size distribution for bulk aerosol simulations Haihui Zhu (WashU)
Shixian Zhai (Harvard)
Aerosols

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


Integrating GMAO's tracer gridded component in GCHP Christoph Keller (NASA GMAO) Transport Tracer simulation

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
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