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

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On this page we list the current priorities for GEOS-Chem development.  This list was compiled by the user Working Groups at the last [http://acmg.seas.harvard.edu/geos/meetings/2017/index.html International GEOS-Chem Meeting (IGC8)] in May 2017 and was updated in May 2018 following the release of v11-02 which included a number of these priorities. This list will be continuously updated based on code readiness and input from the Working Groups and the Steering Committee.
+
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main 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.
+
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]].
  
== List of priorities from IGC8 ==
+
== Release schedule ==
  
----
+
Please see the [http://wiki.seas.harvard.edu/geos-chem/images/e/e1/GEOS-Chem_Release_Proposal.pdf GEOS-Chem Release Proposal] outlining the procedure and schedule for releasing GEOS-Chem versions.  
----
+
<big><strong>GEOS-Chem v11-02-final</strong> '''will also carry the designation''' <strong>GEOS-Chem 12.0.0</strong>'''.'''  We are migrating to a purely numeric versioning system in order to adhere more closely to software development best practices. For a complete description of the new versioning system, please see [[GEOS-Chem version numbering system|our ''GEOS-Chem version numbering system'' wiki page]].</big>
+
----
+
----
+
  
 +
== Merged and awaiting release ==
  
The items listed below are in different stages of readiness and will be included in future versions of the model.
+
See the links below for items merged and awaiting release.
  
=== Ready to go in ===
+
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Patch version in development
 +
!width="200px"|Major version in development
  
The following updates are now being considered for inclusion into GEOS-Chem.
+
|-valign="top"
 +
|align="center"|None
 +
|align="center"|'''[[GEOS-Chem 14.1.0]]'''
 +
 
 +
|}
 +
 
 +
== 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="400px"|Feature
+
!width="200px"|Feature
!width="250px"|Submitted by
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="300px"|Status
+
!width="100px"|Ease of implementation
 
+
!width="300px"|Notes and References
|-
+
!colspan="4" bgcolor="#CCFFFF"|Transport updates
+
  
 
|-valign="top"
 
|-valign="top"
|[[Transport_Working_Group#Common_set_of_tracers_in_GEOS-Chem_and_GEOS|Common set of tracers in GEOS-Chem and GEOS]]
+
|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option) / KPP 3.0.0
|Transport WG<br>[[GCST]]
+
|Mike Long (Harvard) <br> Haipeng Lin (Harvard) <br> Bob Yantosca (GCST) <br> Lu Shen (PKU)
|Benchmarking
+
|Chemistry
 +
|Complicated
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.2.0|GEOS-Chem 12.2.0]]
+
*See H. Lin et al. [2022]<br>(DOI: [https://doi.org/10.31223/X5505V 10.31223/X5505V])
 
+
*[https://github.com/KineticPreProcessor/KPP/releases/tag/3.0.0 KPP 3.0.0 is now released]
|-
+
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+
  
 
|-valign="top"
 
|-valign="top"
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+
|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation via KPP]
|Sebastian Eastham (MIT)
+
|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)<br>Mike Long (Harvard)
|Science
+
|Specialty simulation
 +
|Medium
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.3.0|GEOS-Chem 12.3.0]]
+
*Slated for 14.1.0
 
+
*[https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
|-
+
!colspan="4" bgcolor="#CCFFFF"|Emissions updates
+
  
 
|-valign="top"
 
|-valign="top"
|[[Volcanic_SO2_emissions_from_Aerocom#OMI-based_volcanic_emissions|OMI-based volcanic emissions 2005-2012]]
+
|TOMAS in GCHP
|Cui Ge (U. Iowa)<br>Jun Wang (U. Iowa)
+
|Betty Croft (WashU)
|Science
+
|Aerosols
 +
|Simple
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.3.0|GEOS-Chem 12.3.0]]
+
*Slated for 14.1.0
 +
*[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"
|[[Mineral_dust_aerosols#Anthropogenic_PM2.5_dust_source_in_GEOS-Chem|Anthropogenic PM2.5 dust source]]
+
|[https://github.com/geoschem/geos-chem/issues/1429 Update SO4 production in cloud-droplets over oceans]
|Sajeev Philip (Dalhousie)
+
|Becky Alexander
|Science
+
|Aerosols
 +
|Simple
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.1.0|GEOS-Chem 12.1.0]]
+
*Slated for 14.1.0
 +
*See [https://github.com/geoschem/geos-chem/pull/1434 geoschem/geos-chem PR #1434]
 +
*See [https://github.com/geoschem/geos-chem/issues/1429 geoschem/geos-chem #1429]
  
 
|-valign="top"
 
|-valign="top"
|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#Discussion_of_LAI_Data_Sources|Update MODIS LAI fields for 2005-2016 using Yuan et al. (2011) ]]
+
|[https://github.com/geoschem/geos-chem/pull/1334 RO2 diagnostic]
|Jenny Fisher (Wollongong) <br>Barron Henderson (US EPA)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Diagnostics
 +
|Simple
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.3.0|GEOS-Chem 12.3.0]]
+
* See [https://github.com/geoschem/geos-chem/pull/1334 geoschem/geos-chem PR #1334]
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+
  
 
|-valign="top"
 
|-valign="top"
|Sea salt aerosol alkalinity
+
|[https://github.com/geoschem/geos-chem/issues/770 Output satellite diagnostics as NetCDF]
|Qianjie Chen (UW)<br>Becky Alexander (UW)<br>Xuan Wang (Harvard)
+
|Eloise Marais (UCL)  
|Science
+
|Diagnostics
 +
|Simple
 
|
 
|
*UW version delivered to GCST (Nov 2017)
+
*See [https://github.com/geoschem/geos-chem/pull/1478 geoschem/geos-chem PR #1478]
 +
*See [https://github.com/geoschem/geos-chem/issues/770 geoschem/geos-chem #770]
  
 
|-valign="top"
 
|-valign="top"
|VBS SOA option
+
|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
|Rokjin Park (SNU)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Emissions
 +
|Simple
 
|
 
|
*Code has been implemented in the ancient v9-01-02 version. 
 
*Bringing this up to the current SOA model (simple SOA, complex SOA) will likely involve significant effort.
 
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
 
  
 
|-valign="top"
 
|-valign="top"
|AMAP/UNEP 2035 for Hg simulation
+
|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx]
|Helene Angot (MIT)
+
|Lee Murray (Rochester)
|Science
+
|Emissions
 +
|Simple
 
|
 
|
*Data is available, but has not been transferred to GCST yet
 
  
 
|-valign="top"
 
|-valign="top"
|Oxidant fields from v10 for 2006-2012
+
|[https://github.com/geoschem/geos-chem/discussions/1022 Add new species concentration diagnostic in units of molec/cm3]
*3D chemical source for CO2, CO
+
|Haipeng Lin (Harvard)
*OH for tagged CO & CH4
+
|Diagnostics
|Dylan Jones (UofT)
+
|Simple
|Science
+
 
|
 
|
*Will make data files available on ftp site
+
*See [https://github.com/geoschem/geos-chem/pull/1264 geoschem/geos-chem PR #1264]
  
 
|-valign="top"
 
|-valign="top"
|Africa nested-grid for GEOS-FP and MERRA-2
+
|Update transport tracer simulation for consistency with the tracer gridded component in GEOS
|Eloise Marais (U. Birmingham)
+
|Melissa Sulprizio (Harvard)
|Science
+
|TransportTracer simulation
 +
|Simple
 
|
 
|
*Delivered to GCST (Dec 2017)
 
*Could be implemented with Jiawei Zhuang's FlexGrid
 
  
 
|-valign="top"
 
|-valign="top"
|West Africa nested-grid for GEOS-FP
+
|Update MAPL to v2.26.0
|Mat Evans (York)<br>Eleanor Morris (York)
+
|Lizzie Lundgren (Harvard)
|Science
+
|GCHP
 +
|Simple
 
|
 
|
*Could be implemented with Jiawei Zhuang's FlexGrid
+
*See [https://github.com/geoschem/GCHP/issues/265 geoschem/gchp #265]
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
+
|Retire land-water-ice (LWI) input field
|Becky Alexander (UW)
+
|Lizzie Lundgren (Harvard)
|Science
+
|Met-fields
 +
|Simple
 
|
 
|
 +
*See [https://github.com/geoschem/geos-chem/pull/1435 geoschem/geos-chem PR #1435]
 +
*See [https://github.com/geoschem/HEMCO/pull/170 geoschem/hemco PR #170]
  
 
|-valign="top"
 
|-valign="top"
|Arsenic simulation
+
|Fix missing value handling in GCHP
|Shiliang Wu (MT)
+
|Lizzie Lundgren (Harvard)
|Science
+
|GCHP/GEOS
 +
|Simple
 
|
 
|
 +
*See [https://github.com/geoschem/GCHP/issues/258 geoschem/gchp #258]
  
|-
+
|}
!colspan="4" bgcolor="#CCFFFF"|GCHP updates
+
  
|-valign="top"
+
== Delivered and in the queue ==
|None
+
|
+
|
+
|
+
  
|-
+
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.
!colspan="4" bgcolor="#CCFFFF"|Structural updates
+
  
|-valign="top"
+
{| border=1 cellspacing=0 cellpadding=5
|Updated flux diagnostics
+
|-bgcolor="#CCCCCC"
|Chris Holmes (Florida State)<br>[[GCST]]
+
!width="200px"|Feature
|Structural/<br>Benchmarking
+
!width="200px"|Contributor(s)
|
+
!width="100px"|Model scope
*Currently slated for [[GEOS-Chem 12#12.1.0|GEOS-Chem 12.1.0]]
+
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Benchmark of stratospheric simulation
+
|[https://github.com/geoschem/geos-chem/issues/1301 HTAPv3 at 0.1 deg]
|Dylan Jones (U. Toronto)
+
|Dandan Zhang (WashU)
|Benchmarking
+
|Emissions
 +
|Simple
 
|
 
|
*1-yr benchmarks for GEOS-Chem v11-01d and later include comparisons with OSIRIS O3
+
*Delivered to GCST (Jul 2022)
*Waiting on OSIRIS NO2 data
+
*Waiting on comparisons with ACE-FTS data
+
  
 
|-valign="top"
 
|-valign="top"
|Add total column O3 to benchmarks
+
|Updating VOC fire emissions and adding lumped furan
|Chris Holmes (FSU)<br>[[GCST]]
+
|Colette Heald (MIT)<br>Tess Carter (MIT)
|Benchmarking
+
|Chemistry
 +
|Simple
 
|
 
|
*Deferred until GEOS-Chem 12
+
*See T. Carter et al., [2022]<br>(DOI: [https://doi.org/10.5194/acp-2022-438 10.5194/acp-2022-438])
*Also note: GCST plans on migrating benchmark plotting code from IDL to Python in v11-03
+
  
|-valign="top"
+
|}
|ObsPack diagnostic as netCDF replacement for planeflight_mod.F
+
 
|Andy Jacobson (NOAA/ESRL)
+
== Delivered but not yet prioritized ==
|Structural
+
 
|
+
Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integration into GEOS-Chem.
*Delivered to GCST (May 2017)
+
 
 +
{| 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"
|[[GEOS-Chem_v11-02#Discrepancies_in_single-stage_simulations_vs_multi-stage_simulations|Updates to eliminate differences between single and multi-segmented GEOS-Chem runs]]
+
|Tagged O3 simulation in GCHP
|[[GCST]]<br>Christoph Keller
+
|Xingpei Yu (PKU)<br>Jourdan He (WashU)
|Bug fix<br>Structural
+
|TagO3 simulation
 +
|Simple
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.1.0|GEOS-Chem 12.1.0]]
+
*[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"
|Further structural updates to facilitate interfacing GEOS-Chem with external models (e.g. WRF, CAM, CESM)
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
|[[GCST]]
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
|Structural
+
|Emissions
 +
|Simple
 
|
 
|
*Ongoing
+
*Delivered to GCST (Jul 2022)
 
+
|-
+
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
+
  
 
|-valign="top"
 
|-valign="top"
|[[FlexGrid|FlexGrid: Use HEMCO to read met fields and enable nested simulations over any custom domains]]
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
|Structural
+
|Science
 +
|Simple
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.1.0|GEOS-Chem 12.1.0]]
+
*Delivered to GCST (Feb 2021)
 +
* [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
  
 
|-valign="top"
 
|-valign="top"
|[[ISORROPIA_II#Investigating_persistent_noise_observed_in_ISORROPIA_output|Update ISORROPIA from v2.0 to v2.2, in order to remove persistent noise in output]]
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
|Seb Eastham (Harvard)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
|Science
+
|Emissions
 +
|Simple
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.3.0|GEOS-Chem 12.3.0]]
+
*Data files delivered to GCST (July 2021)
 +
*Data are quite large - need to think about storage, compression
  
 
|-valign="top"
 
|-valign="top"
|Archival of roughness length for temperature z0T
+
|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
|[[GCST]]
+
|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
|Met processing
+
|Chemistry
 +
|Medium
 
|
 
|
*Work has not yet begun
+
*Delivered to GCST (Jun 2020)
 +
 
 
|}
 
|}
  
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 16:10, 20 June 2018 (UTC)
+
== Ready but not delivered ==
  
=== Almost there (< 6 months) ===
+
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="400px"|Item
+
!width="200px"|Feature
!width="250px"|Author(s)
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="300px"|Status
+
!width="300px"|Notes and References
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Transport updates
+
|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.
  
 
|-valign="top"
 
|-valign="top"
|[https://www.geosci-model-dev-discuss.net/gmd-2017-125/ GEOS resolution & subgrid convection]
+
|Online H2 chemistry
|Karen Yu (Harvard)
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
|Science
+
|Chemistry
 
|
 
|
*To be installed by Bob Yantosca (Harvard), tested by Tailong He (Toronto)
 
*Work to begin after v11-02 release
 
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+
|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.
  
 
|-valign="top"
 
|-valign="top"
|N2O5 hydrolysis updates
+
|Organic acids (RCOOH)
|Viral Shah (UW)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 
|
 
|
*Defer until paper is submitted (Summer 2018)
 
*Code from v10 (SMVGEAR) needs to be translated to v11 (FlexChem); this may take some effort
 
  
 
|-valign="top"
 
|-valign="top"
|H2 chemistry in UCX
+
|Update reactions with new JPL & IUPAC recommendations
|Chris Holmes (FSU)
+
|Kelvin Bates (Harvard)
|Science
+
|Chemistry
 
|
 
|
*Defer until paper is submitted
+
* Currently running simulations to check magnitude of changes
*Estimate Fall 2018 or sooner
+
  
 
|-valign="top"
 
|-valign="top"
|Updated chlorine chemistry
+
|Improve carbon & nitrogen conservation in reactions
|Xuan Wang (Harvard)
+
|Kelvin Bates (Harvard)
|Science
+
|Chemistry
 
|
 
|
*Defer until the paper is submitted
 
  
 
|-valign="top"
 
|-valign="top"
|[[Chemistry_Issues#Correcting_ozone_from_the_height_of_the_lowest_model_level_to_the_surface|ND49 timeseries diagnostic for correcting ozone from the height of the lowest model level to 10m]]
+
|Blowing snow sea salt in TOMAS
|Katie Travis (MIT)
+
|Betty Croft (Dalhousie)
|Structural
+
|Aerosols
 
|
 
|
*Defer until the paper is submitted
 
  
 
|-valign="top"
 
|-valign="top"
|OH + NO2 rate update
+
|Geologic emission of ethane and propane
|Barron Henderson (EPA)
+
|Matthew Rowlinson and Mat Evans(York)
|Science
+
|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
  
 
|-valign="top"
 
|-valign="top"
|[[Chemistry_Issues#Script_for_evaluating_carbon_balance|Script for checking N, C, etc. balance in chemistry mechanism]]
+
|New version of CEDS at 0.1 deg
|Barron Henderson (EPA)
+
|Emma Knowland (NASA)
|Software
+
|Emissions
|Barron Henderson wrote:
+
|
*The script for checking the carbon balance exists and works. Ideally, we would move some of the structures into the KPP files to codify them instead of storing them in the script itself. This would be less than 6 months. [https://www.evernote.com/shard/s315/sh/82219b0a-0031-4f3c-a9ca-401964d3b4c5/7af8ad1c743543fa20bf91201ecab2f0 Click HERE for script]
+
  
 
|-valign="top"
 
|-valign="top"
|Aromatics and dicarbonyl chemistry
+
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
|William Porter (MIT)<br>Tzung-May Fu (PKU)
+
|Shixian Zhai (Harvard)
|Science
+
|Emissions
 
|
 
|
 +
* Need permission from Qiang Zhang (Tsinghua U.) to distribute data
  
 
|-valign="top"
 
|-valign="top"
|Document chemical mechanism in KPP file
+
|KORUS-AQ emissions for East Asia
|Mat Evans (York)
+
|Katie Travis (NASA)
|Structural
+
|Emissions
 +
|
 +
* Need permission to distribute data
 +
 
 +
|-valign-"top"
 +
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
 +
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign-"top"
 +
|WRF-GC Hg simulation
 +
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation<br>WRF-GC
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Diurnal variability for NH3
+
|Updated HgII gas-partical partitioning
|Henze group
+
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
|Science
+
|Hg simulation
|Daven Henze wrote:
+
*The FORTRAN code for implementing NH3 emissions diurnal variability is fairly straightforward. However, it involves calculation of some quantities that depend upon met fields in the future, and we’re unsure of how to accomplish this in a robust and elegant manner.  
+
*In particular, we need to know the aerodynamic resistance and surface temperature at every emission time step over the course of a time period X, where X is the time resolution of the NH3 livestock emissions inventory being used. This is typically monthly, but I could foresee future inventories having higher resolution, so maybe we want to consider this more generically. 
+
*One approach would be to pre-process this quantity at high resolution for all years, as is currently being done e.g. for dust emissions.  Another would be to add code to read in this information from met files online, but this would add some i/o to the model.
+
+
|-valign="top"
+
|Uptake of HNO3 onto coarse-mode sea salt
+
|Prasad Kasibhatla (Duke)
+
|Science
+
 
|
 
|
 +
* Should be option, not default
  
 
|-valign="top"
 
|-valign="top"
|Photolysis of NITs
+
|Dry deposition to F90 (readability)
|Prasad Kasibhatla (Duke)
+
|Chris Holmes (FSU)
|Science
+
|Dry deposition
 
|
 
|
 +
|}
 +
 +
== Almost there (< 6 months) ==
 +
 +
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
 +
 +
{|border=1 cellspacing=0 cellpadding=5
 +
|- bgcolor="#cccccc"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
|-
 
!colspan="4" bgcolor="#CCFFFF"|Emissions updates
 
  
 
|-valign="top"
 
|-valign="top"
|Grid-independent lightning NOx emissions (3-hourly)
+
|DMS Chemistry
|Lee Murray (Rochester)
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
|Science
+
|Chemistry
 
|
 
|
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
|Grid-independent dust emissions (hourly)
+
|PPN+hv, PPN+OH
|David Ridley (MIT)
+
|Robert Ryan (UCL)
|Science
+
|Chemistry
 
|
 
|
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
|Grid-independent biogenic emissions (hourly)
+
|MBO
|Jintai Lin (PKU)
+
|Michael Vermeuel (UMN)
|Science
+
|Chemistry
 
|
 
|
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
|Grid-independent sea salt emissions (hourly)
+
|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]
|Jintai Lin (PKU)
+
|Seb Eastham (MIT)
 
|Science
 
|Science
 
|
 
|
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
|EPA-derived BC/OA emissions over US (1990-2012)
+
|Re-binning of off-line sea salt and dust for use in TOMAS
|David Ridley (MIT)<br>Chi Li (Dalhousie)
+
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 
|
 
|
*Emissions are available but need to be formatted properly.
 
*Could be ready by Fall-Winter 2018, depending on D. Ridley's availability
 
  
 
|-valign="top"
 
|-valign="top"
|[[FINNv1_biomass_burning_emissions|FINN biomass burning emissions for 2014-2016]]
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
|Barron Henderson (US EPA)
+
|Betty Croft (Dalhousie)
|Science
+
|Aerosols
 
|
 
|
*Pending receipt of corrected data files
 
  
 
|-valign="top"
 
|-valign="top"
|EPA NEI2011 Version EK
+
|ML algorithms for bulk aerosols
|Zitely Tzompa-Sosa (CSU)<br>Emily Fischer (CSU)
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
|Science
+
|Aerosols
 
|
 
|
*Estimate Late 2018 or sooner
 
  
 
|-valign="top"
 
|-valign="top"
|GFAS biomass burning emissions
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
|Mat Evans (York)
+
|Shixian Zhai (Harvard)
|Science
+
|Aerosols
|Mat Evans wrote:
+
|
*For the sake of the documentation and the wiki I think we should replicate the standard benchmark year on our system, and then switch on the GFAS emissions instead of the GFED and then have the GFAS emissions distributed by hieight.  We can do that and then prepare some plots for the documentation.  Estimate summer 2018.
+
  
 
|-valign="top"
 
|-valign="top"
|[[MASAGE_NH3_inventory|MASAGE inventory in HEMCO as default]]
+
|Updates to Hodzic SOA scheme
|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
+
|Jared Brewer (Harvard)
|Science
+
|Aerosols
 
|
 
|
*MASAGE data is already available.
 
*GCST would need assistance from the user community to prepare HEMCO configuration files such that we do not double-count agricultural NH3 from MASAGE and other inventories.  This has been the main delay.
 
*F. Paulot has left the GC community.
 
  
 
|-valign="top"
 
|-valign="top"
|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
+
|Automated reduction in isoprene scheme
|Amos Tai (CUHK)
+
|Dan Westervelt (Lamont-Doherty)
|Science
+
|Aerosols
 
|
 
|
*Waiting on data
 
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|Brown carbon chemsitry
|Fabien Paulot (NOAA/GFDL)
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
|Science
+
|Aerosols
 
|
 
|
*Data files delivered to GCST (Jan 2016)
+
 
*Needs to be implemented via HEMCO, which is the primary delay
+
  
 
|-valign="top"
 
|-valign="top"
|Injection height for fire emissions
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
|Juliet Zhu (CSU)<br>Emily Fischer (CSU)
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
|Science
+
|Convection
 
|
 
|
*Code was available in pre v9-02 (HEMCO)
 
*Code may have been ported to v11-02a but this option was not activated
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Surface fluxes and land usage updates
 
  
 
|-valign="top"
 
|-valign="top"
|Land cover module: Harmonized biosphere-atmosphere exchange and implementing CLM or manual land cover change experiments
+
|Update surface methane boundary condition using NOAA flask data
|Jeff Geddes (BU)
+
|Lee Murray (Rochester)
|Science
+
|Input data
 
|
 
|
*Has been added into v9-02 (pre-HEMCO)
 
*Bringing this up to v11 will probably need significant effort
 
*BU group/GCST will meet summer 2018 to discuss implementation
 
  
 
|-valign="top"
 
|-valign="top"
|Carbon bottom up fluxes: anthro, ocean, land
+
|Provide recommended rather than hard-coded scaling factors for online emissions
|Kevin Bowman (JPL)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Online O3-LAI coupling in GEOS-Chem
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
|Amos Tai (CUHK)
+
|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"
!colspan="4" bgcolor="#CCFFFF"|Wet deposition updates
+
|Updated offline sea salt emissions
 +
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
 +
|Emissions
 +
|
  
 
|-valign="top"
 
|-valign="top"
|Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc.
+
|HgII deposition too high in 13.4; Hg0 conc too low; should not use as is
|Sarah Safieddine (MIT)<br>GCST
+
|Viral Shah (NASA GMAO)<br>Yanxu Zhang (Nanjing U.)<br>Ari Feinberg (MIT)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Wet scavenging in mixed-phase clouds
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
|Bo Zhang (NIA/NASA Langley)
+
|Sam Silva (MIT)
|Science
+
|Emissions &<br>Science
 
|
 
|
*Defer until paper is published
+
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
*Estimate Fall 2018
+
*Needs to be updated to a more recent GEOS-Chem version
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
+
|Gridded EPA (GEPA) version 2 emissions for 2012-2018
 +
|Bram Maasakkers (SRON)<br>Erin McDuffie (WashU),<br>Melissa Sulprizio (Harvard)
 +
|Emissions<br>CH4 simulation
 +
|
  
 
|-valign="top"
 
|-valign="top"
|Radon emission update
+
|Reduce dimension of analytical inversion
|Bo Zhang (NIA/NASA Langley)
+
|Hannah Nesser (Harvard)
|Science
+
|Adjoint capability
 
|
 
|
*Defer until paper is published
 
*Estimate Fall 2018
 
  
 
|-valign="top"
 
|-valign="top"
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Retire all BPCH diagnostics
|Colin Thackray (Harvard)<br>Carey Friedman (formerly MIT)<br>Helen Amos (formerly Harvard)
+
|Bob Yantosca (Harvard)
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|New EDGAR sectoral inventory for Hg (1970-2012)
+
|GEOS-Chem in CESM 2.3
|Amanda Giang (MIT)
+
|Lizzie Lundgren (Harvard)
|Science
+
|Interfacing with ESMs
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive GISS met fields from RCP scenarios for community
+
|Assess memory leak in GCHP
|Lee Murray (Rochester)
+
|Killian Murphy (York)
|Science
+
|Model performance
 
|
 
|
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|GCHP updates
+
|Point to internal state for species mixing ratios in GCHP and GEOS
 +
|Lizzie Lundgren (Harvard)<br>Christoph Keller (NASA)
 +
|Structural
 +
|
  
 
|-valign="top"
 
|-valign="top"
|New version of MAPL
+
|Assess precision in GCHP internal state - use R4 for some?
|GMAO, Lizzie Lundgren (GCST)
+
|Lizzie Lundgren (Harvard)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Flux ingestion
+
|Hybrid MPI-OpenMP in GCHP
|Sebastian Eastham (MIT)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
|Science
+
|Model performance
 
|
 
|
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Structural updates
 
  
 
|-valign="top"
 
|-valign="top"
|Clean up SOA diagnostics
+
|Convert HEMCO input files to YAML
|GCST
+
|Melissa Sulprizio (Harvard)
 
|Structural
 
|Structural
 
|
 
|
*GCST has implemented many existing SOA diagnostics in netCDF
 
*GCST would need help from the community to streamline these diagnostics
 
  
 
|-valign="top"
 
|-valign="top"
|Calculation consistency throughout code: surface area, HGF (via species database)
+
|Allow easy disabling of HEMCO emissions for testing
|GCST
+
|Melissa Sulprizio (Harvard)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Harmonizing Henry's Law coefficients across wet and dry deposition
+
|Improve run directory templating and creation with init_rd.sh and shared directories
|[[GCST]]
+
|Jourdan He (WashU)
|Science
+
|Run directories
 
|
 
|
*Work not started yet. Will need input from the community.
 
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
 
  
 
|-valign="top"
 
|-valign="top"
|CESM-GC offline coupling in standard model + benchmark
+
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
|Rokjin Park (SNU)<br>Daniel Rothenberg (MIT)
+
|GCST?
|Science
+
|Documentation
 +
|
 +
 
 +
|-valign="top"<
 +
|Upgrade Fast-JX to Cloud-J
 +
|Lizzie Lundgren (Harvard)
 +
|Structural
 
|
 
|
*Rokjin Park says code is ready
 
*Waiting on clarification in which version this is implemented in.
 
  
 
|}
 
|}
  
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 19:16, 23 May 2018 (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="400px"|Item
+
!width="200px"|Feature
!width="250px"|Author(s)
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="300px"|Status
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
+
|Snow / Icy Bromine
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
|Science
+
|Chemistry
 
|
 
|
*Delivered to GCST (Nov 2017)
 
*Needs to be added as a HEMCO extension, but converting from ancient v9-01-01 code may take significant effort.
 
  
 
|-valign="top"
 
|-valign="top"
|MEIC emissions over China (2000-2015)
+
|Monoterpene oxidation scheme
|Lu Shen (Harvard)<br>Melissa Sulprizio (Harvard)
+
|Jessica Haskins (MIT)
|Science
+
|Chemistry
 
|
 
|
*Defer until MEIC paper is published
 
  
 
|-valign="top"
 
|-valign="top"
|GISS-GC (ICECAP/GCAP2) in standard model + benchmark
+
|Fire related VOCs including furans
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|Lu Hu (UMT)<br>Lixu Jin (UMT)
|Science
+
|Chemistry
|Lee Murray replied:
+
|
*"I would say 6-12 months to be safe, but the goal is to have it done by the end of summer 2018.  There will actually be very minimal updates to GEOS-Chem; most of the updates are to modify the GISS model to output MERRA2-like data, to facilitate integration with GCHP and future updates to the CTM."
+
  
 
|-valign="top"
 
|-valign="top"
|GISS-GC GCHP
+
|Extension of UCX into the mesosphere
|Lee Murray (Rochester)<br>Pengfei Liu (Harvard)<br>Yang Li (Harvard)
+
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
|Science
+
|Chemistry
 
|
 
|
*Rochester and Harvard groups are coordinating, to avoid duplication of effort
 
  
 
|-valign="top"
 
|-valign="top"
|CESM-GC GCHP
+
|Methane flux ingestion
|Seb Eastham (MIT)
+
|Eloise Marais (UCL)
|Science
+
|Chemistry
 
|
 
|
*Seb Eastham is now the lead developer.
 
*Estimate late 2018 or early 2019; validation will take time
 
  
 
|-valign="top"
 
|-valign="top"
|Additional modifications for [[FlexChem]], including:
+
|Parameterized effective radius
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Haihui Zhu (WashU)
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
|Aerosols
|[[GCST]]
+
|Structural
+
 
|
 
|
*Mike Long, who was the principal proponent behind these updates, has since left the GC community.
 
*We are not sure who will take this over
 
  
 
|-valign="top"
 
|-valign="top"
|Dynamic fire modeling/prediction
+
|Dust non-sphericity impacts on surface chem and optical properties
|Shiliang Wu (MNT)
+
|Inderjeet Singh (WashU)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Interannually varying ocean model BCs for Hg from ocean model
+
|Size-resolved stratospheric aerosol
|Colin Thackray (Harvard)
+
|Seb Eastham (MIT)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|PAH & PFCA simulations
+
|Extend aerosol settling
|Peter Ivatt (York)<br>Mat Evans (York)<br>Noelle Selin (MIT)<br>Colin Thackray (Harvard)
+
|Eloise Marais (UCL)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|CH4 in full chemistry simulation
+
|Stratospheric aerosol APM
|Seb Eastham (Harvard)
+
|Fangqun Yu (SUNY)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Standard future land use maps (PFT, LAI) for RCP/CMIP6 simulations
+
|Plume-in-grid model
|Colette Heald (MIT)<br>Loretta Mickley (Harvard)
+
|Hongwei Sun (Harvard)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive GISS met fields from CMIP6 scenarios for community
+
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
 
|Lee Murray (Rochester)
 
|Lee Murray (Rochester)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to cold-temperature deposition
+
|Seb aircraft emissions beyond recent 2019 update
|Lyatt Jaegle (UW)
+
|Seb Eastham (MIT)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Simple parameterization for CO2-O3 dependence of stomatal resistance
+
|FRP-based fire emsisions for eastern US at 0.2 deg
|Amos Tai (CUHK)
+
|Charlie Fite (FSU)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|NH3 emissions over China
+
|Hg iodine chemistry
|Lin Zhang (PKU)
+
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Using GEOS-Chem within GEOS-5
+
|Hg simulation in GCHP
|Loretta Mickley (Harvard)
+
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Carbon cycle outputs in xCO2, xCH4 as a diagnostic
+
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
|Beata Bukosa (Wollongong)<br>Dylan Jones (UofT)
+
|Yanxu Zhang (Nanjing U.)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Seasonal EMEP emissions back to 1980
+
|Dry deposition diagnostics by land cover
|Mat Evans (York)
+
|Holly Nowell (FSU)
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to NO2 dry deposition
+
|Dry deposition process diagnostics
|Brian Boys (Dalhousie)
+
|Holly Nowell (FSU)
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|APM update and integration with most recent GEOS-Chem version
+
|Isotope simulation for CO and CH4 in GCHP
|Gan Luo (SUNY Albany)
+
|Lee Murray (Rochester)
|Structural
+
|Carbon simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Cosmogenic tracer production
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
|Lee Murray (Rochester)
+
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
|Science
+
|Emissions<br>CH4 simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Explore resolution-consistent dust emissions
+
|Separate mixing and emissions
*Make high-res concentrations or mass fluxes available offline, implement in met field processing
+
|Bob Yantosca (Harvard)
|David Ridley (MIT)<br>GCST<br>Nested Model WG
+
|Structural
|Science
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dust emissions at nested-grid resolutions
+
|Modularization of aerosols code for interface with GOCART in GEOS
|Yuxuan Wang (U. Houston)<br>Jun Wang (U. Iowa)
+
|Christoph Keller (GMAO)
|Science
+
|Structural
 
|
 
|
*Check for overlap with resolution-consistent dust emissions above
 
  
 
|-valign="top"
 
|-valign="top"
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Update SO2 scavenging in convective updrafts for consistency]]
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
|Duncan Fairlie (NASA/LARC)  
+
|Bob Yantosca (Harvard)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Sea salt emission from sea ice
+
|Improve load balancing in GCHP
|Jiayue Huang (UW)
+
|Seb Eastham (MIT)
|Science
+
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem_species_units|Uniformity of units]]
+
|Update to MAPL 3 in GCHP, including replacement of ExtData.rc with YAML file
|[[GCST]]
+
|Lizzie Lundgren (Harvard)
 
|Structural
 
|Structural
|Lizzie Lundgren wrote:
 
*We are not planning on resuming work to unify units in GEOS-Chem anytime soon. Any changes to units in the near future would be for better compatibility with other models, although none are currently planned. However, user consensus on preferred units would still be helpful to move the conversation forward.
 
 
|}
 
 
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 19:42, 24 May 2018 (UTC)
 
 
=== Longer term (12-24 months)===
 
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
!width="400px"|Item
 
!width="250px"|Author(s)
 
!width="100px"|Type
 
!width="300px"|Status
 
 
|-valign="top"
 
|GCHP stretched grid
 
|Jiawei Zhuang (Harvard)
 
|Science
 
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|1/8 degree nested-grid simulations with GEOS-FP
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
|Nested Model WG
+
|Bob Yantosca (Harvard)
|Science
+
|Model performance
 
|
 
|
*Wait for more interest
 
  
 
|-valign="top"
 
|-valign="top"
|Embedding GEOS-Chem into CESM
+
|Limit allocation of State_Met to what is needed per simulation
|Jean-Francois Lamarque (NCAR)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Structural
 
|
 
|
*NOTE: Seb Eastham is already working on this
 
  
 
|-valign="top"
 
|-valign="top"
|Adjoint of carbon cycle simulation in GCHP
+
|Make frequency of HEMCO restart file configurable
|Kevin Bowman (JPL)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Isoprene chemistry v2 (new Caltech update)
+
|Apply masks/scaling in HEMCO based on input category or flag
|Kelvin Bates (Caltech)
+
|Melissa Sulprizio (Harvard)
|Science
+
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Contemporary land cover: developing historical and updated GEOS-Chem land cover maps based on satellite remote sensing
+
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
|Jeff Geddes (BU)
+
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Farquhar-Ball-Barry model to calculate stomatal resistance
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
|Amos Tai (CUHK)<br>Jeff Geddes (BU)
+
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
|Science
+
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Impacts of chemistry on ecosystem/carbon cycle
+
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
|Kevin Bowman (JPL)<br>Anthony Bloom (JPL)
+
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
|Science
+
|Transport
 
|
 
|
  
|-valign="top"
+
|}
|Improved lightning emission scheme
+
|Lee Murray (Rochester)
+
|Science
+
|
+
  
|-valign="top"
+
== Longer term (12-24 months)==
|Resolution-independent lightning NOx
+
|Lee Murray (Rochester)
+
|Science
+
|
+
  
|-valign="top"
+
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.
|Bidirectional NH3 emissions
+
 
|Juliet Zhu (CSU)
+
{| border=1 cellspacing=0 cellpadding=5
|Science
+
|- bgcolor="#cccccc"
|
+
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
|-valign="top"
 
|Country-based weekday/weekend variability for EDGAR 4.2
 
|Lee Murray (Rochester)<br>Christoph Keller (Harvard)
 
|Science
 
|
 
  
 
|-valign="top"
 
|-valign="top"
|Update keytone photolysis
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
|Jared Brewer (CSU)<br>Emily Fischer (CSU)
+
|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"
|Small alkyl nitrates
+
|Updates to Aromatic chemistry
|Jenny Fisher (Wollongong)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|YIBS-GC chemistry-biosphere-fire coupling
+
|Nitrate photolysis
|Loretta Mickley (Harvard)<br>Xu Yue (IAP)
+
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Nitrogen-LAI coupling
+
|In aerosol chemistry Halogens
|Lin Zhang (PKU)<br>Amos Tai (CUHK)
+
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Implementing humidity/VPD dependence of dry deposition
+
|Benchmark box model of GC Chemistry
|Jennifer Murphy (U. Toronto)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|SO2 wet scavenging
+
|Alkyl nitrates Alk7, PHAN
|Duncan Fairlie (NASA Langley)
+
|Katie Travis (NASA)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Heterogeneous sulfate production
+
|Add stratospheric ozone species to full-chemistry simulations
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Lee Murray (Rochester)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|MOSAIC implementation
+
|Perchlorate chemistry
|Sebastian Eastham (Harvard)
+
|Yuk Chun Chan (UWAB)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Particle size climatology
+
|Explicit heterogeneous sulfate chemistry
|Fangqun Yu (SUNY Albany)
+
|Katie Travis (NASA)<br>Becky Alexander (UT)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Sea salt/dust size distribution
+
|ISORROPIA-lite
|David Ridley (MIT)<br>Colette Heald (MIT)
+
|Becky Alexander (UW)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to GTMM
+
|HOx and ozone "emissions" from lightning as option in model to play with
|Rebecca Stern (Harvard)
+
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Tracer transport ocean
+
|Sea salt aerosol from sea ice leads
|Chris Holmes (FSU)
+
|Hannah Horowitz (U. Illinois)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Include Hg in full chemistry simulation
+
|Drought-stress algorithm
|Noelle Selin (MIT)
+
|Wei Li (U. Houston)
|Science
+
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Goddard seasonal weather prediction in GCHP
+
|Biomass burning injection height profiles
|Kevin Bowman (JPL)
+
|Inderjeet Singh (WashU)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Climate index diagnostics (drought, etc.)
+
|OCIM integration
|Chemistry-ecosystems-climate WG
+
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
|Structural
+
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Joint CO/CO2/CH4 simulation
+
|Updating landcover products in GEOS-Chem
|Nicholas Deutscher (U. Wollongong)
+
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
|Science
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Carbon coupling: oceans and terrestrial models
+
|Dry deposition physical improvement
 
|Chris Holmes (FSU)
 
|Chris Holmes (FSU)
|Science
+
|Dry deposition
 
|
 
|
*Ocim-pure physical transport, ECCO-Darwin ocean biogeochemistry
 
  
 
|-valign="top"
 
|-valign="top"
|DMS oxidation scheme updating
+
|Extend the IMI system to other trace gases
|Qianjie Chen (UW)<br>Chemistry WG
+
|Lucas Estrada (Harvard)
|Science
+
|Adjoint capabilities
 
|
 
|
 +
  
 
|-valign="top"
 
|-valign="top"
|Limiting NH3 uptake due to OA
+
|TOMAS WRF-GC in regional Thailand simulation
|Rachel Silvern (Harvard)
+
|Win Trivitayanurak (Chulalongkorn U)
|Science
+
|Aerosols
 
|
 
|
  
 
|}
 
|}
  
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 15:32, 23 May 2018 (UTC)
+
----------------
 +
 
 +
'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''

Latest revision as of 19:33, 1 December 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
None GEOS-Chem 14.1.0

Feature integration in progress

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

Feature Contributor(s) Model scope Ease of implementation Notes and References
Adaptive chemical solver (as option) / KPP 3.0.0 Mike Long (Harvard)
Haipeng Lin (Harvard)
Bob Yantosca (GCST)
Lu Shen (PKU)
Chemistry Complicated
Joint CO2-CO-CH4-OCS simulation via KPP Beata Bukosa (NIWA)
Kevin Bowman (JPL)
Mike Long (Harvard)
Specialty simulation Medium
TOMAS in GCHP Betty Croft (WashU) Aerosols Simple
Update SO4 production in cloud-droplets over oceans Becky Alexander Aerosols Simple
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
Update transport tracer simulation for consistency with the tracer gridded component in GEOS Melissa Sulprizio (Harvard) TransportTracer simulation Simple
Update MAPL to v2.26.0 Lizzie Lundgren (Harvard) GCHP Simple
Retire land-water-ice (LWI) input field Lizzie Lundgren (Harvard) Met-fields Simple
Fix missing value handling in GCHP Lizzie Lundgren (Harvard) GCHP/GEOS Simple

Delivered and in the queue

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

Feature Contributor(s) Model scope Ease of implementation Notes and References
HTAPv3 at 0.1 deg Dandan Zhang (WashU) Emissions Simple
  • Delivered to GCST (Jul 2022)
Updating VOC fire emissions and adding lumped furan Colette Heald (MIT)
Tess Carter (MIT)
Chemistry Simple

Delivered but not yet prioritized

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

GEOS-Chem Main Page | GCHP Main Page