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 [https://geos-chem.seas.harvard.edu/geos-working-groups Working Groups] and the [https://geos-chem.seas.harvard.edu/geos-steering-cmte Steering Committee]. For history of past releases see the [[GEOS-Chem_versions|GEOS-Chem Versions wiki page]].
  
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"| -
 +
|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"|Notes
+
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
 +
 
  
 
|-valign="top"
 
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Updates that will affect full-chemistry simulations
+
|TOMAS in GCHP
 +
|Betty Croft (WashU)
 +
|Aerosols
 +
|Simple
 +
|
 +
*[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"
 
|-valign="top"
|[[Stratospheric_chemistry#Bug_fix:_make_sure_stratospheric_BrY_concentrations_are_read_properly_each_month|Bug fix: make sure stratospheric BrY concentrations are read properly each month]]
+
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option) / KPP 3.0.0
|Lyatt Jaegl&eacute; (U. Washington)
+
|Mike Long (Harvard) <br> Haipeng Lin (Harvard) <br> Bob Yantosca (GCST) <br> Lu Shen (PKU)
|Bug fix
+
|Chemistry
 +
|Complicated
 
|
 
|
*Ready for implementation (Jun 2019)
+
*Lin, H., M.S. Long, R. Sander, R.M. Yantosca, L.A. Estrada, L. Shen, and D.J. Jacob, An adaptive auto-reduction solver for speeding up integration of chemical kinetics in atmospheric chemistry models: implementation and evaluation in the Kinetic Pre-Processor (KPP) version 3.0.0, submitted to JAMES,  https://doi.org/10.31223/X5505V, 2022.
 +
|-valign="top"
 +
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation via KPP]
 +
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)<br>Mike Long (Harvard)
 +
|Specialty simulation
 +
|Medium
 +
|
 +
*[https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
  
 
|-valign="top"
 
|-valign="top"
|Retire obsolete emission inventories
+
|RO2 diagnostic
|Eloise Marais (Leicester)<br>GCST
+
|Melissa Sulprizio (Harvard)
|Science
+
|Diagnostics
 +
|Simple
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Fixes for GFED4 emissions, including:
+
|[https://github.com/geoschem/geos-chem/issues/770 Output satellite diagnostics as NetCDF]
*Change the HEMCO cycling flag so that the model crashes if it doesn't find the right GFED year
+
|Eloise Marais (UCL)  
*Remove the 27% scaling of POG to POA and emit 1:1 instead
+
|Diagnostics
|Sidhant Pai (MIT)
+
|Simple
|Bug fix
+
 
|
 
|
 +
*See [https://github.com/geoschem/geos-chem/pull/1134 geoschem/geos-chem #1134]
  
 
|-valign="top"
 
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Updates that will NOT affect full-chemistry simulations
+
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
 +
|Melissa Sulprizio (Harvard)
 +
|Emissions
 +
|Simple
 +
|
  
 
|-valign="top"
 
|-valign="top"
|Enable GEOS-Chem "Classic" netCDF (History) diagnostics to be subsetted vertically and horizontally
+
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx]
|Bob Yantosca (GCST)
+
|Lee Murray (Rochester)
|Structural
+
|Emissions
 +
|Simple
 
|
 
|
*Validation complete (Jun 2019)
 
  
 
|-valign="top"
 
|-valign="top"
|Add capability to compile GEOS-Chem Classic and GCHP using CMake
+
|[https://github.com/geoschem/geos-chem/discussions/1022 Add new species concentration diagnostic in units of molec/cm3]
|Liam Bindle (Dalhousie)
+
|Haipeng Lin (Harvard)
|Structural
+
|Diagnostics
 +
|Simple
 
|
 
|
 +
*See [https://github.com/geoschem/geos-chem/pull/1264 geoschem/geos-chem PR #1264]
  
 
|-valign="top"
 
|-valign="top"
|Enable accurate cloud pH diagnostic calculation via post-processing
+
|Identify and remove memory leaks and similar issues
|Jonathan Moch (Harvard)
+
|Bob Yantosca (Harvard)
 
|Structural
 
|Structural
 +
|Medium
 
|
 
|
*Applies to NetCDF diagnostic only
+
*See [https://github.com/geoschem/geos-chem/pull/1353 github.com/geos-chem PR #1353]
  
 
|-valign="top"
 
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Updates that will only affect GCHP
+
|Update transport tracer simulation for consistency with the tracer gridded component in GEOS
 +
|Melissa Sulprizio (Harvard)
 +
|TransportTracer simulation
 +
|Simple
 +
|
  
 
|-valign="top"
 
|-valign="top"
|Update GCHP to use MAPL v1.0.0 and ESMF v8.0.0 beta snapshot 28
+
|Bug fix for GFAS in GCHP
|Lizzie Lundgren (GCST)
+
|Lizzie Lundgren (Harvard)
|Structural
+
|GCHP
 +
|Simple
 +
|
 +
 
 +
|-valign="top"
 +
|Use pointers to internal state for species arrays in GCHP/GEOS
 +
|Lizzie Lundgren (Harvard)
 +
|GCHP/GEOS
 +
|Medium
 +
|
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1274 Revision to a rate constant for the C2H4 scheme]
 +
|Kelvin Bates (Harvard)
 +
|Chemistry
 +
|Easy
 +
|
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1298 Fix product in HOBr/Cl + S(IV) reactions]
 +
|Xuan Wang (CUHK)
 +
|Chemistry
 +
|Easy
 +
|
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1235 Add MO2 + NO3 reaction]
 +
|Kelvin Bates (Harvard)
 +
|Chemistry
 +
|Easy
 
|
 
|
*Replaces external tile files with online ESMF regridding weights
 
*Includes parallel file I/O module
 
*Enables use of GNU fortran compiler
 
  
 
|}
 
|}
  
=== 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"|Notes
+
!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]
+
|[https://doi.org/10.34894/SZ2KOI AMAP 2015 emissions from GMA2018]
|Viral Shah (UW)<br>Lyatt Jaegle (UW)<br>Chris Holmes (FSU)<br>Erin McDuffie (Dalhousie)
+
|Helene Angot(MIT)<br>Ari Feinberg (MIT)<br>Noelle Selin (MIT)
|Science
+
|Hg simulation
 +
|Simple
 
|
 
|
*Delivered to GCST (Dec 2018)
+
* Delivered to GCST (Jul 2022)
  
 
|-valign="top"
 
|-valign="top"
|HNO3 cold-temperature deposition
+
|[https://pubs.rsc.org/en/content/articlehtml/2022/em/d2em00032f Improvements in modelled Hg0 dry deposition to land]
|Viral Shah (Harvard)
+
|Ari Feinberg (MIT)<br>Noelle Selin (MIT)<br>Thandolwethu Dlamini (MIT)<br>Martin Jiskra (UBasel)<br>Viral Shah (Harvard)
|Science
+
|Hg simulation
 +
|Simple
 
|
 
|
 +
* See [https://github.com/geoschem/geos-chem/pull/1367 geoschem/geos-chem PR #1367]
 +
* The study is already published and could be incorporated into the standard model as a default. Some tweaking to the reduction rate may be required as the model halogen oxidation has also been updated in v13.4.
  
 
|-valign="top"
 
|-valign="top"
|Bug in aerosol pH calculation when dry
+
|[https://github.com/geoschem/geos-chem/issues/1301 HTAPv3 at 0.1 deg]
|Becky Alexander (UW)<br>Xuan Wang (Harvard)
+
|Dandan Zhang (WashU)
|Science
+
|Emissions
 +
|Simple
 
|
 
|
 +
*Delivered to GCST (Jul 2022)
 +
 +
|}
 +
 +
== Delivered but not yet prioritized ==
 +
 +
Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integration into GEOS-Chem.
 +
 +
{| 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"
|Remove isoprene in VBS (leaving aqueous)
+
|Tagged O3 simulation in GCHP
|GCST w/ guidance from Sid Pai (MIT)
+
|Xingpei Yu (PKU)<br>Jourdan He (WashU)
|Science
+
|TagO3 simulation
|
+
|Simple
 
+
|-valign="top
+
|Historical biomass burning emissions (1750-2014, BCC4CMIP and LPJ-LMfire)
+
|Pengfei Liu (Harvard)
+
|Science
+
 
|
 
|
 +
*[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"
|[[Chemistry_Issues#Correcting_ozone_from_the_height_of_the_lowest_model_level_to_the_surface|Surface diagnostic (O3, HNO3) with user-selected height]]
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
|Katie Travis (MIT)<br>GCST
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
|Science
+
|Emissions
 +
|Simple
 
|
 
|
 +
*Delivered to GCST (Jul 2022)
  
 
|-valign="top"
 
|-valign="top"
|Updated aerosol hygroscopicity and optics
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
|Robyn Latimer (Dalhousie)<br>Jun Meng (Dalhousie)
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 
|Science
 
|Science
 +
|Simple
 
|
 
|
*Delivered to GCST (Jun 2019)
+
*Delivered to GCST (Feb 2021)
 +
* [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
  
 
|-valign="top"
 
|-valign="top"
|Simple parameterization for CO2 dependence of stomatal resistance
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
|Amos Tai (CUHK)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
|Science
+
|Emissions
 +
|Simple
 
|
 
|
 +
*Data files delivered to GCST (July 2021)
 +
*Data are quite large - need to think about storage, compression
  
 
|-valign="top"
 
|-valign="top"
|[https://github.com/geoschem/geos-chem/pull/32 Aerosol nitrate photolysis option] (off by default)
+
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
|Tomas Sherwen (York)<br>Prasad Kasibhatla (Duke)
+
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
|Science
+
|Chemistry
 +
|Medium
 
|
 
|
*Delivered to GCST (Mar 2019)
+
*Delivered to GCST (Jun 2020)
  
 
|}
 
|}
  
=== 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"|Notes
+
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Subgrid cloud NOy chemistry
+
|Updating VOC fire emissions and adding lumped furan
|Chris Holmes (FSU)
+
|Colette Heald (MIT)<br>Jessica Haskins (MIT)
|Science
+
|Chemistry
 
|
 
|
 +
* Carter, T. S., Heald, C. L., Kroll, J. H., Apel, E. C., Blake, D., Coggon, M., Edtbauer, A., Gkatzelis, G., Hornbrook, R. S., Peischl, J., Pfannerstill, E. Y., Piel, F., Reijrink, N. G., Ringsdorf, A., Warneke, C., Williams, J., Wisthaler, A., and Xu, L.: An Improved Representation of Fire Non-Methane Organic Gases (NMOGs) in Models: Emissions to Reactivity, Atmos. Chem. Phys. Discuss. [preprint], https://doi.org/10.5194/acp-2022-438, in review, 2022.
  
|}
+
|-valign="top"
 +
|Nitrate photolysis
 +
|Viral Shah (NASA GMAO)
 +
|Chemistry
 +
|
 +
* Shah, V., D.J. Jacob, R. Dang, L.N. Lamsal, S.A. Strode, S.D. Steenrod, K.F. Boersma, S.D. Eastham, T.M. Fritz, C. Thompson, J. Peischl, I. Bourgeois, I.B. Pollack, B.A. Nault, R.C. Cohen, P. Campuzano-Jost, J.L. Jimenez, S.T. Andersen, L.J. Carpenter, T. Sherwen, and M.J. Evans, Nitrogen oxides in the free troposphere: Implications for tropospheric oxidants and the interpretation of satellite NO2 measurements, EGUsphere [preprint], https://doi.org/10.5194/egusphere-2022-656, 2022.
  
=== 12.8.0 ===
+
|-valign="top"
 +
|Online H2 chemistry
 +
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
 +
|Chemistry
 +
|
  
This version will require 1-month and 1-year full-chemistry benchmarks.
+
|-valign="top"
 +
|Alk4 & R4N2 chemistry
 +
|Jared Brewer (Harvard)
 +
|Chemistry
 +
|
 +
* Brewer, J.F., D.J. Jacob, S.H. Jathar, Y. He, A. Akherati, S. Zhai, D.S. Jo, A. Hodzic, B.A. Nault, P. Campuzano-Jost, J.L. Jimenez, R.J. Park, Y.J. Oak, and H. Liao, A scheme for representing aromatic secondary organic aerosols in chemical transport models: application to source attribution of organic aerosols over South Korea during the KORUS-AQ campaign, submitted to J. Geophys. Res., 2022.
  
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
|-bgcolor="#CCCCCC"
+
|Organic acids (RCOOH)
!width="500px"|Feature
+
|Katie Travis (NASA)
!width="200px"|Submitted by
+
|Chemistry
!width="100px"|Type
+
|
!width="300px"|Notes
+
  
 
|-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 emission of ethane and propane
 +
|Matthew Rowlinson and Mat Evans(York)
 +
|Emissions
 +
|
 +
* Global source from https://doi.org/10.1038/s41561-018-0073-0 with spatial distribution from https://doi.org/10.5194/essd-11-1-2019
  
{| 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"|Notes
+
  
 
|-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/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
 +
|
  
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"
 +
|WRF-GC Hg simulation
 +
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation<br>WRF-GC
 +
|
  
=== Ready to go in ===
+
|-valign="top"
 +
|Updated HgII gas-partical partitioning
 +
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
 +
|Hg simulation
 +
|
 +
* Should be option, not default
  
{| border=1 cellspacing=0 cellpadding=5  
+
|-valign="top"
|-bgcolor="#CCCCCC"
+
|Dry deposition to F90 (readability)
!width="500px"|Feature
+
|Chris Holmes (FSU)
!width="200px"|Submitted by
+
|Dry deposition
!width="100px"|Type
+
|
!width="300px"|Notes
+
|}
 +
 
 +
== 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
  
|-
 
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
 
  
 
|-valign="top"
 
|-valign="top"
|Implement H2 chemistry in UCX
+
|DMS Chemistry
|Chris Holmes (FSU)
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Joint CO, CO2, CH4 simulation
+
|PPN+hv, PPN+OH
|Beata Bukosa (Wollongong)
+
|Robert Ryan (UCL)
|Science
+
|Chemistry
 
|
 
|
*Delivered to GCST (Jun 2019)
 
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Emissions and surface fluxes updates
 
  
|-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
+
|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]
|Amanda Giang (UBC)
+
|Seb Eastham (MIT)
 
|Science
 
|Science
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Offline CLM Harmonization
+
|Re-binning of off-line sea salt and dust for use in TOMAS
|Anthony Wong (BU)<br>Jeff Geddes (BU)
+
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 
|
 
|
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
 
  
 
|-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
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
 
+
|Aerosols
=== Almost there (< 6 months) ===
+
|
 
+
{| border=1 cellspacing=0 cellpadding=5
+
|- bgcolor="#cccccc"
+
!width="500px"|Item
+
!width="200px"|Author(s)
+
!width="100px"|Type
+
!width="300px"|Notes
+
  
 
|-valign="top"
 
|-valign="top"
|Diagnostic to archive XCO2, XCO, and XCH4
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
|Dylan Jones (Toronto)
+
|Shixian Zhai (Harvard)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
+
|Updates to Hodzic SOA scheme
|Kazu Miyazaki (JPL)
+
|Jared Brewer (Harvard)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Evaluate the impact on the tropsophere of using the family approach for transport in the stratosphere
+
|Automated reduction in isoprene scheme
|Christoph Keller (NASA/GMAO)  
+
|Dan Westervelt (Lamont-Doherty)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Examine differences in the lightning NOx schemes in GEOS-Chem and GMI
+
|Brown carbon chemsitry
|Christoph Keller (NASA/GMAO)<br>Lee Murray (Rochester)
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
|Science
+
|Aerosols
 
|
 
|
 +
  
 
|-valign="top"
 
|-valign="top"
|Small alkyl nitrate chemistry
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
|Jenny Fisher (Wollongong)
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
|Science
+
|Convection
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Isoprene chemistry
+
|Update surface methane boundary condition using NOAA flask data
|Kelvin Bates (Harvard)
+
|Lee Murray (Rochester)
|Science
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|HMS chemistry
+
|Provide recommended rather than hard-coded scaling factors for online emissions
|Jonathan Moch (Harvard)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Heterogeneous sulfate production
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Jintai Lin (PKU)
|Science
+
|Emissions
 +
|Horizontal resolution: 5km, temporal resolution: JJA mean (monthly data will be available at a later stage; please contact us).
 +
 
 +
|-valign="top"
 +
|Updated biomass burning emission factors and species
 +
|Tess Carter (MIT)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Eliminate 27% scaling on semivolatile fire emissions for complex scheme
+
|Updated offline sea salt emissions
|Sidhant Pai (MIT)
+
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|BrC aging
+
|HgII deposition too high in 13.4; Hg0 conc too low; should not use as is
|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
+
|Viral Shah (NASA GMAO)<br>Yanxu Zhang (Nanjing U.)<br>Ari Feinberg (MIT)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|APM update and integration with most recent GC version
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
|Gan Luo (SUNY-Albany)<br>Fangqun Yu (SUNY-Albany)
+
|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"
|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)
+
|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)
+
|Jourdan He (WashU)
|Science
+
|Run directories
 +
|
 +
 
 +
|-valign="top"
 +
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
 +
|GCST?
 +
|Documentation
 +
|
 +
 
 +
|-valign="top"<
 +
|Upgrade Fast-JX to Cloud-J
 +
|Lizzie Lundgren (Harvard)
 +
|Structural
 
|
 
|
  
 
|}
 
|}
  
--[[User: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"|Notes
+
!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"
 
|-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"|Notes
+
!width="420px"|Notes and References
 +
 
  
 
|-valign="top"
 
|-valign="top"
|Implement isotope simulation for CO and CH4 in GCHP
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
|Lee Murray (Rochester)
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
|Science
+
|Emissions
 
|
 
|
 +
*See [https://github.com/geoschem/geos-chem/issues/1288 geoschem/geos-chem #1288]
 +
*[https://github.com/geoschem/geos-chem/issues/1288#issuecomment-1255103962 NOTE: This feature has been tabled for the time being.]
  
 
|-valign="top"
 
|-valign="top"
|Migrate LETFK DA scheme to GCHP
+
|Updates to Aromatic chemistry
|Kazu Miyazaki (JPL)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Super fast chemistry scheme
+
|Nitrate photolysis
|Benjamin Brown-Steiner (AER)<br>Makoto Kelp (Harvard)
+
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Add non-volatile cations to ISORROPIA
+
|In aerosol chemistry Halogens
|Becky Alexander (UW)
+
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Update Europe emissions to EMEP 2016
+
|Benchmark box model of GC Chemistry
|Eloise Marais (Leicester)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|MEGAN3
+
|Alkyl nitrates Alk7, PHAN
|Sam Silva (MIT)<br>Jen Kaiser (GIT)<br>Yuxuan Wang (UH)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|DMS oxidation scheme updating
+
|Add stratospheric ozone species to full-chemistry simulations
|Becky Alexander (UW)<br>Qianjie Chen (UW)
+
|Lee Murray (Rochester)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Streamlining of specialty simulations through HEMCO and KPP
+
|Perchlorate chemistry
|GCST<br>Chris Holmes (FSU)<br>Colin Thackray for POPs (Harvard)<br>Peter Ivatt (York) for PAH
+
|Yuk Chun Chan (UWAB)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Hg in WRF-GC
+
|Explicit heterogeneous sulfate chemistry
|Yanxu Zhang (Nanjing)
+
|Katie Travis (NASA)<br>Becky Alexander (UT)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Hg with blowing snow
+
|ISORROPIA-lite
|Yanxu Xhang (Nanjing)
+
|Becky Alexander (UW)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updated treatment of Hg in ocean
+
|HOx and ozone "emissions" from lightning as option in model to play with
|Chris Holmes (FSU)
+
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|GTMM updates
+
|Sea salt aerosol from sea ice leads
|Ben Geyman (Harvard)
+
|Hannah Horowitz (U. Illinois)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Complex / multicomplex variables
+
|Drought-stress algorithm
|Shannon Capps (Drexel)
+
|Wei Li (U. Houston)
|Structural
+
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Build KPP when you compile GC
+
|Biomass burning injection height profiles
|GCST
+
|Inderjeet Singh (WashU)
|Structural
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Restructure source code folders
+
|OCIM integration
|GCST
+
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
|Structural
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|-valign="top"
 
|-valign="top"
|Archived CMIP6 Met Products for GEOS-Chem Input
+
|Updating landcover products in GEOS-Chem
|Lee Murray (Rochester)
+
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
|Science
+
|Input data
 
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|}
+
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|Dry deposition physical improvement
 +
|Chris Holmes (FSU)
 +
|Dry deposition
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--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
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|-valign="top"
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|Extend the IMI system to other trace gases
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|Lucas Estrada (Harvard)
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|Adjoint capabilities
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|TOMAS WRF-GC in regional Thailand simulation
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|Win Trivitayanurak (Chulalongkorn U)
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|Aerosols
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|}
  
 
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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]]'''''

Revision as of 18:24, 22 September 2022

GEOS-Chem Main Page | GCHP Main Page

On this page we list the current priorities for GEOS-Chem development. This list is continuously updated based on code readiness and input from the Working Groups and the Steering Committee. For history of past releases see the GEOS-Chem Versions wiki page.

Release schedule

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

Merged and awaiting release

See the links below for items merged and awaiting release.

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

Feature integration in progress

Features listed in this table are actively being integrated into GEOS-Chem by the GEOS-Chem Support Team. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.

Feature Contributor(s) Model scope Ease of implementation Notes and References


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

Delivered and in the queue

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

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

Delivered but not yet prioritized

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

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

Ready but not delivered

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

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

Almost there (< 6 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.

Feature Contributor(s) Model scope Notes and References


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


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

Over the horizon (6-12 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.

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

Longer term (12-24 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.

Feature Contributor(s) Model scope Notes and References


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


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

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