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

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(→‎Feature integration in progress)
 
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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/2015/index.html International GEOS-Chem Meeting (IGC7)] in May 2015 and has been continuously updated since 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.
+
== Merged and awaiting release ==
  
−
== List of priorities as of Oct 2016 ==
+
See the links below for items merged and awaiting release.
  
−
Items awaiting release will be part of the next version release of GEOS-Chem and are actively being incorporated into the standard model and benchmarked. More information on those items can be obtained on the [[GEOS-Chem v11-01]] wiki page.
+
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="300px"|Mergeable at any time
 +
!width="200px"|Version in development
  
−
The items listed below are in different stages of readiness and will be included in future versions of the model.
+
|-valign="top"
 +
|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
 +
|align="center"|'''[[GEOS-Chem 14.4.0]]'''
  
−
=== Ready to go in ===
+
|}
  
−
{| border=1 cellspacing=0 cellpadding=5
+
== Feature integration in progress ==
−
|- bgcolor="#cccccc"
+
 
−
!width="400px"|Item
+
Features listed in this table are actively being integrated into GEOS-Chem by the [https://geoschem.github.io/support-team.html 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.
−
!width="300px"|Author(s)
+
 
−
!width="400px"|Status
+
{| 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"
−
|Halogen chemistry updates
+
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
−
|Tom&aacute;s Sherwen (York)<br>Johan Schmidt (Harvard)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
 +
|Emissions
 +
|Simple
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Updates_in_JPL_Publication_15-10|Updating chemistry rate constants based on ''JPL Publication 15-10'']]
+
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
−
|Barron Henderson (U. Florida)<br>Mat Evans (U. York)<br>[[Chemistry Issues|Oxidants and Chemistry WG]]
+
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
 +
|Emissions
 +
|Medium
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
  
 
|-valign="top"
 
|-valign="top"
−
|[[PAN|PAN updates]]
+
|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
−
|Emily Fischer (CSU)
+
|Lizzie Lundgren (Harvard)
 +
|GC-Classic
 +
|Medium
 
|
 
|
−
*Delivered to GCST (May 2013)
+
*[https://github.com/geoschem/HEMCO/issues/18 hemco issue #18]
  
 
|-valign="top"
 
|-valign="top"
−
|[[NOx-Ox-HC-aerosol#Monthly mean surface distributions|Monthly mean surface methane distributions]]
+
|Capture all trop and PBL height changes in budget diagnostics
−
|Lee Murray (NASA GISS/LDEO)
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
 +
|Diagnostics
 +
|Medium
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
 +
 +
|}
 +
 +
== Prioritized and in the queue ==
 +
 +
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
 +
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="100px"|Delivery status
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|ALK4 & R4N2 chemistry
−
|Fabien Paulot (NOAA/GFDL)
+
|Jared Brewer (UMN)
 +
|Chemistry
 +
|TBD
 +
|Not delivered
 
|
 
|
−
*Data files delivered to GCST (Jan 2016)
+
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
−
*Needs to be implemented via HEMCO
+
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., 2023.]
  
 
|-valign="top"
 
|-valign="top"
−
|[[Aerosol_optical_properties#Add_BC_absorption_enhancement_factor|Update density of BC to 1.8 and add absorption enhancement factor in input.geos]]
+
|Mass flux regridding fix in MAPL
−
|Xuan Wang (MIT)
+
|Tom Clune (GMAO)<br>Seb Eastham (MIT)
 +
|GCHP input regridding
 +
|Medium
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Jan 2016)
+
|
 +
*[https://github.com/geoschem/GCHP/issues/377 GCHP Issue #377]
 +
*'''Currently on hold, as the submitted update results in zero diff'''
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3a: Output diagnostics in NetCDF format]]
+
|New version of CEDS at 0.1 deg
−
|[[GCST]]
+
|Dandan Zhang (WashU)
 +
|Emissions
 +
|Simple
 +
|Delivered
 
|
 
|
 +
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
 +
*'''Currently on hold while an issue with seasonality in the new CEDS data is being investigated by the authors.'''
 +
 +
|}
 +
 +
== Ready to go in ==
 +
 +
Features listed in this table are ready to go in but have either not been delivered or 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"|Delivery status
 +
!width="300px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3b: Updates to eliminate differences between single and multi-segmented GEOS-Chem runs]]
+
|KORUS-AQ emissions for East Asia (as an option)
−
|[[GCST]], Christoph Keller
+
|Katie Travis (NASA)
 +
|Emissions
 +
|Simple
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Species Database Phase 3:
+
|Geologic emission of ethane and propane
−
*Harmonizing Henry's Law coefficients across wet and dry deposition
+
|Matthew Rowlinson and Mat Evans(York)
−
|[[GCST]]
+
|Emissions
 +
|Delivered<br>Jan 2023
 
|
 
|
 +
*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"
−
|[[GEOS-Chem_tracer_units|Uniformity of units]]
+
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
−
|Lizzie Lundgren ([[GCST]])
+
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 +
|Science
 +
|Delivered<br>Feb 2021
 
|
 
|
−
*Phase 2 (unit uniformity throughout chemistry) to be implemented after Flexchem
+
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
−
*Phase 3 (unit uniformity in some specialty simulations) will be implemented in pieces with input from 3rd party developers
+
−
*Phase 4 (removal of area and area-dependent State_Met variables) will be ongoing
+
  
 
|-valign="top"
 
|-valign="top"
−
|Lightning NOx chemistry parameterization
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
−
|Alicia Gressent (MIT)
+
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
 +
|Emissions
 +
|Delivered<br>Jul 2021
 
|
 
|
 +
*Data involves many files- need to think about temporal frequency
  
 
|-valign="top"
 
|-valign="top"
−
|Update OH + NO2 rate
+
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
−
|Barron Henderson (UF)
+
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
 +
|Chemistry
 +
|Delivered<br>June 2023
 
|
 
|
 +
*[https://acp.copernicus.org/articles/22/12367/2022/acp-22-12367-2022.html Pérez-Peña, M.P. et al., ACP, 2022.]
 +
*Implemented in v12.5, needs to be brought up to current version
  
 
|-valign="top"
 
|-valign="top"
−
|Fix to direct/diffuse radiation
+
|DMS Chemistry
−
|Katie Travis (Harvard)
+
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
 +
|Chemistry
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Dry_deposition#Fix_for_NO3_.2B_ISOP_product|Fix for NO3 + ISOP product]]
+
|Organic acids (RCOOH)
−
|Katie Travis (Harvard)
+
|Katie Travis (NASA)
 +
|Chemistry
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Lightning update based on Travis et al. (submitted) and Zhang et al. (2014, ACP)
+
|Improve carbon & nitrogen conservation in reactions
−
|Katie Travis (Harvard)
+
|Kelvin Bates (Harvard)
 +
|Chemistry
 +
|Not delivered
 
|
 
|
 +
 
|-valign="top"
 
|-valign="top"
−
|Updated organic deposition
+
|Blowing snow sea salt in TOMAS
−
|Katie Travis (Harvard)<br>Jenny Fisher (U. Wollongong)
+
|Betty Croft (Dalhousie)
 +
|Aerosols
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Remove dependence of species drydep on HNO3 drydep
+
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
−
|Katie Travis (Harvard)<br>Jenny Fisher (U. Wollongong)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
 +
|Hg simulation
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Add aqueous isoprene uptake to SOA scheme
+
|WRF-GC Hg simulation
−
|Eloise Marais (Harvard)
+
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation<br>WRF-GC
 +
|Not delivered
 
|
 
|
−
*Delivered to GCST (Jul 2016)
 
  
 
|-valign="top"
 
|-valign="top"
−
|Enhance default GEOS-Chem simple SOA
+
|Updated HgII gas-partical partitioning
−
|Aerosol Working Group Chairs
+
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
 +
|Hg simulation
 +
|Not delivered
 
|
 
|
 +
*Should be option, not default
  
 
|-valign="top"
 
|-valign="top"
−
|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
+
|Dry deposition to F90 (readability)
−
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Chris Holmes (FSU)
 +
|Dry deposition
 +
|Not delivered
 
|
 
|
 +
 +
|}
 +
 +
== Almost there (< 6 months) ==
 +
 +
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
 +
 +
{|border=1 cellspacing=0 cellpadding=5
 +
|- bgcolor="#cccccc"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|FlexGrid: Use HEMCO I/O and regridding capabilities to read and regrid met fields
+
|PPN+hv, PPN+OH
−
|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
+
|Robert Ryan (UCL)
 +
|Chemistry
 
|
 
|
−
*Delivered to GCST (Oct 2016)
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|MBO
−
|Carey Friedman (MIT)<br>Helen Amos (Harvard)
+
|Michael Vermeuel (UMN)
 +
|Chemistry
 
|
 
|
  
−
|}
+
|-valign="top"
 +
|Initial conditions for CH4 correcting background and stratospheric biases
 +
|Todd Mooring (Harvard)
 +
|Methane simulation
 +
|
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 17:56, 18 October 2016 (UTC)
+
|-valign="top"
 +
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
 +
|Bob Yantosca (Harvard)
 +
|Aerosols<br>Structural
 +
|
 +
*Ongoing
  
−
=== Almost there (< 6 months) ===
+
|-valign="top"
 +
|Re-binning of off-line sea salt and dust for use in TOMAS
 +
|Betty Croft (Dalhousie)
 +
|Aerosols
 +
|
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|- bgcolor="#cccccc"
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
−
!width="400px"|Item
+
|Betty Croft (Dalhousie)
−
!width="300px"|Author(s)
+
|Aerosols
−
!width="400px"|Status
+
|
  
 
|-valign="top"
 
|-valign="top"
−
|Additional modifications for [[FlexChem]], including:
+
|ML algorithms for bulk aerosols
−
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, UCX, SOA, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
−
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
|Aerosols
−
|Mike Long (Harvard), [[GCST]]
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Temporary fix to remove SO2 scavenging in convective updrafts]]
+
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
−
|Duncan Fairlie (NASA/LARC)  
+
|Shixian Zhai (Harvard)
 +
|Aerosols
 
|
 
|
−
*Delivered to [[GEOS-Chem Support Team|GCST]] (Nov 2015)
 
−
*'''''Duncan Fairlie wrote on 03 Mar 2016:'''''
 
−
:I don't think my fix for this issue is ready for prime time. I get chimneys of essentially unscavenged SO2 extending into the UTLS during Asian monsoon, leading to too much sulfate aloft. I think replacing the instantaneous titration of H2O2 in the standard code with the correct oxidation of SO2 by H2O2 (and O3?) is necessary.
 
  
 
|-valign="top"
 
|-valign="top"
−
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Update SO2 scavenging in convective updrafts for consistency]]
+
|Updates to Hodzic SOA scheme
−
|Duncan Fairlie (NASA/LARC)  
+
|Jared Brewer (Harvard)
 +
|Aerosols
 
|
 
|
−
*Still needs to be fully validated
 
  
 
|-valign="top"
 
|-valign="top"
−
|Update MODIS LAI fields through 2015
+
|Automated reduction in isoprene scheme
−
|Barron Henderson (UF)
+
|Dan Westervelt (Lamont-Doherty)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Python code for GEOS-Chem|Python GEOS-Chem output processing and visualization package]]
+
|Brown carbon chemsitry
−
|Beno&icirc;t Bovy (U. Li&egrave;ge-Belgium)
+
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
 +
|Aerosols
 
|
 
|
−
*Users may download, test it, and submit feedback to Benoit Bovy.
 
  
 
|-valign="top"
 
|-valign="top"
−
|Benchmark of stratosphere simulation
+
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
−
|Dylan Jones (U. Toronto)
+
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
 +
|Convection
 
|
 
|
−
*1-yr benchmarks for GEOS-Chem v11-01d and later include comparisons with OSIRIS O3
 
−
*Waiting on OSIRIS NO2 data
 
−
*Waiting on comparisons with ACE-FTS data
 
  
 
|-valign="top"
 
|-valign="top"
−
|Benchmark for nested NA model
+
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
−
|Jun Wang (UNL)
+
|Jintai Lin (PKU)
 +
|Emissions
 
|
 
|
 +
*Horizontal resolution: 5km, temporal resolution: JJA mean
 +
*monthly data will be available at a later stage; please contact us
  
 
|-valign="top"
 
|-valign="top"
−
|High-resolution regional emissions (to be implemented via HEMCO)
+
|Updated biomass burning emission factors and species
−
|Lin Zhang (PKU)<br>Yuxuan Wang (Texas A&M)
+
|Tess Carter (MIT)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updates to isoprene chemistry, includes:
+
|Updated offline sea salt emissions
−
*Fast photolysis of carbonyl nitrates
+
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
−
*Aerosol uptake of organic nitrates
+
|Emissions
−
|Jenny Fisher (U. Wollongong)<br>Elo&iuml;se Marais (Harvard)<br>Kelvin Bates (Caltech)<br>Katie Travis (Harvard)
+
 
|
 
|
−
*This has already been added to the SEAC4RS research version of GEOS-Chem
 
  
 
|-valign="top"
 
|-valign="top"
−
|3D chemical source for CO2 and CO; OH for tagged CO and CH4 simulations
+
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
−
|Dylan Jones (U. Toronto)
+
|Sam Silva (MIT)
 +
|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"
−
|Hg code updates (chemistry, ocean, land)
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
−
|[[Hg and POPs Working Group]]
+
|Bob Yantosca (Harvard)
 +
|Model performance
 
|
 
|
 +
*Ongoing (will be done as time allows)
  
 
|-valign="top"
 
|-valign="top"
−
|Nested CO2, CH4, Hg, TOMAS, adjoint, etc.
+
|Assess memory leak in GCHP
−
|[[Nested Model Working Group]]
+
|Killian Murphy (York)
 +
|Model performance
 
|
 
|
 +
*NOTE: Most memory leaks in GCHP have been fixed by [https://github.com/geoschem/geos-chem/pull/1353 geoschem/geos-chem PR #1353]. Will wait until MAPL3 to further assess.
  
 
|-valign="top"
 
|-valign="top"
−
|Updated nighttime isoprene chemistry
+
|Hybrid MPI-OpenMP in GCHP
−
|Rebecca Schwantes (Caltech)
+
|Seb Eastham (MIT)<br>Killian Murphy (York)
 +
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|EPA-derived BC/OA emissions over US (1990-2012)
+
|Improve pressure handling in GCHP advection
−
|David Ridley (MIT)
+
|Seb Eastham (MIT)<br>Yuanjian Zhang (WashU)
 +
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Updated documentation on setting up new nested domains
+
|Use ExtData2G as default GCHP input module
−
|Lin Zhang (PKU)<br>Yuxuan Wang (Texas A&M)
+
|Lizzie Lundgren (Harvard)
 +
|GCHP
 +
|Will replace ExtData.rc with yaml file
 +
 
 +
|}
 +
 
 +
== 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
 +
|- bgcolor="#cccccc"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
 +
 
 +
|-valign="top"
 +
|Snow / Icy Bromine
 +
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Nested model publication wiki page
+
|Monoterpene oxidation scheme
−
|Jun Wang (UNL)
+
|Jessica Haskins (MIT)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Past and future fire emissions under RCPs
+
|Fire related VOCs including furans
−
|Loretta Mickley (Harvard)<br>Yuhang Wang (GIT)<br>Shiliang Wu (MT)
+
|Lu Hu (UMT)<br>Lixu Jin (UMT)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Surface ocean Hg boundary conditions from MITgcm
+
|Extension of UCX into the mesosphere
−
|Hannah Horowitz (Harvard)
+
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
 +
|Chemistry
 
|
 
|
−
*Paper is being prepared for submission
 
  
 
|-valign="top"
 
|-valign="top"
−
|Kz eddy mixing scheme
+
|Methane flux ingestion
−
|Karen Yu (Harvard)
+
|Eloise Marais (UCL)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|MOSAIC implementation
+
|Dust non-sphericity impacts on surface chem and optical properties
−
|Sebastian Eastham (Harvard)
+
|Inderjeet Singh (WashU)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|[[Aerosols_Working_Group#Sedimentation_of_stratospheric_aerosols|Sedimentation of stratospheric aerosols]]
+
|Size-resolved stratospheric aerosol
−
|Sebastian Eastham (Harvard)
+
|Seb Eastham (MIT)
 +
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Global evaluation of using LWC and ICW from met fields for wet scavenging
+
|Extend aerosol settling
−
|Hongyu Liu (NIA/NASA LARC)<br>Bo Zhang (NIA)
+
|Eloise Marais (UCL)
 +
|Aerosols
 
|
 
|
  
−
|}
+
|-valign="top"
 +
|Stratospheric aerosol APM
 +
|Fangqun Yu (SUNY)
 +
|Aerosols
 +
|
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 18:30, 18 October 2016 (UTC)
+
|-valign="top"
 +
|Plume-in-grid model
 +
|Hongwei Sun (Harvard)
 +
|Chemistry
 +
|
  
−
=== Over the horizon (6-12 months) ===
+
|-valign="top"
 +
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
 +
|Lee Murray (Rochester)
 +
|Emissions
 +
|
  
−
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
−
|- bgcolor="#cccccc"
+
|Seb aircraft emissions beyond recent 2019 update
−
!width="400px"|Item
+
|Seb Eastham (MIT)
−
!width="300px"|Author(s)
+
|Emissions
−
!width="400px"|Status
+
|
  
 
|-valign="top"
 
|-valign="top"
−
|Dust emissions at nested-grid resolution
+
|FRP-based fire emsisions for eastern US at 0.2 deg
−
|Yuxuan Wang (Texas A&M)<br>Jun Wang (UNL)
+
|Charlie Fite (FSU)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Archive meteorological fields with higher resolution (for RCPs)
+
|Hg iodine chemistry
−
|Lee Murray (NASA GISS/LDEO)
+
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Land cover module in GEOS-Chem
+
|Hg simulation in GCHP
−
|Jeffrey Geddes (MIT)<br>Michael Long (Harvard)
+
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Improved lightning emission scheme
+
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
−
|Lee Murray (NASA GISS/LDEO)
+
|Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Archive high resolution wind fields for sea salt
+
|Dry deposition diagnostics by land cover
−
|[[GEOS-Chem Support Team]]
+
|Holly Nowell (FSU)
 +
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|VBS SOA option
+
|Dry deposition process diagnostics
−
|Rokjin Park (SNU)
+
|Holly Nowell (FSU)
 +
|Diagnostics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Merge standard simulation with specialty simulations for OVOC, acids, aromatics, dicarbonyls, terpenes
+
|Isotope simulation for CO and CH4 in GCHP
−
|Dylan Millet (UMN)<br>Xin Chen (UMN)
+
|Lee Murray (Rochester)
 +
|Carbon simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Cl chemistry updates
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
−
|Lyatt Jaegl&eacute; (UW)
+
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
 +
|Emissions<br>CH4 simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Automate redistribution of NOx in HEMCO
+
|Modularization of aerosols code for interface with GOCART in GEOS
−
|Lee Murray (NASA GISS/LDEO)
+
|Christoph Keller (GMAO)
 +
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Injection height for fire emissions
+
|Improve load balancing in GCHP
−
|Emily Fischer (CSU)
+
|Seb Eastham (MIT)
 +
|Model performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Include Hg in full chemistry
+
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
−
|Noelle Selin (MIT)
+
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
 +
|Transport
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|DMS oxidation scheme updating
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
−
|Tom Breider (Harvard)<br>Becky Alexander (U. Washington)<br>[[Chemistry Issues|Oxidants and Chemistry Working Group]]
+
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
 +
|Transport
 
|
 
|
−
*Currently being worked on by a member of the [http://www.atmos.washington.edu/blog/beckya/group-members/ Alexander group]
 
  
 
|-valign="top"
 
|-valign="top"
−
|Historical Hg emissions (1850-present)
+
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
−
|Hannah Horowitz (Harvard)
+
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
 +
|Transport
 
|
 
|
−
*Awaiting completion of David Street's revised 1850-present inventory
 
  
 
|-valign="top"
 
|-valign="top"
−
|Joint CO/CO2/CH4 forward model simulation
+
|MAPL version 3
−
|Nicholas Deutscher (U. Wollongong)
+
|Lizzie Lundgren (Harvard)
 +
|GCHP
 +
|Will include History wildcard handling in GCHP
 +
 
 +
 
 +
|-valign="top"
 +
|Migrate benchmark meteorology from MERRA2 to GEOS-IT
 +
|GCST
 +
|Benchmarking
 
|
 
|
  
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 18:54, 18 October 2016 (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="400px"|Item
+
!width="200px"|Feature
−
!width="300px"|Author(s)
+
!width="200px"|Contributor(s)
−
!width="400px"|Status
+
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
−
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate and nitrate simulation]], including
+
|Updates to Aromatic chemistry
−
*[[Sulfate_aerosols#Metal_catalyzed_oxidation_of_SO2|Metal catalyzed oxidation of SO2]] (as a switch)
+
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
−
|Becky Alexander (UW)
+
|Chemistry
 
|
 
|
−
*These updates been implemented in v9-02, but have not been successfully merged with HEMCO in v10-01
 
−
*Improvements for the tagged nitrate simulation are in the pipeline
 
  
 
|-valign="top"
 
|-valign="top"
−
|CO2 dependence of stomata conductance in dry deposition
+
|Nitrate photolysis
−
|Amos Tai (CUHK)
+
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Bi-directional NH3 emissions
+
|In aerosol chemistry Halogens
−
|Juliet Zhu (CSU)<br>Lin Zhang (PKU)
+
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Arsenic simulation
+
|Benchmark box model of GC Chemistry
−
|Shiliang Wu (MT)
+
|Katie Travis (NASA)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Emission scheme of dust: subgrid wind variation to remove resolution dependence and better interannual variability
+
|Alkyl nitrates Alk7, PHAN
−
|David Ridley (MIT)
+
|Katie Travis (NASA)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Ozone damage to vegetation
+
|Add stratospheric ozone species to full-chemistry simulations
−
|Amos Tai (CUHK)
+
|Lee Murray (Rochester)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Subgrid scale precipitation variability
+
|Perchlorate chemistry
−
|[http://acmg.seas.harvard.edu/ Harvard group]
+
|Yuk Chun Chan (UWAB)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Dry deposition: Update the ozone dry deposition scheme
+
|Explicit heterogeneous sulfate chemistry
−
|[http://www.chem.utoronto.ca/wp/murphygroup/ Murphy group] (UofT)
+
|Katie Travis (NASA)<br>Becky Alexander (UT)
 +
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Country-based weekend/weekday variability for EDGAR v4.2
+
|HOx and ozone "emissions" from lightning as option in model to play with
−
|Lee Murray (NASA GISS/LDEO)<br>Christoph Keller (Harvard)
+
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Sea salt emission from sea ice
+
|Sea salt aerosol from sea ice leads
−
|Jiayue Huang (UW)
+
|Hannah Horowitz (U. Illinois)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Resolution-independent lightning NOx scaling
+
|Drought-stress algorithm
−
|Lee Murray (NASA GISS/LDEO)
+
|Wei Li (U. Houston)
 +
|
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Nested-grid model with GEOS-FP at 1/2&deg; x 5/8&deg; resolution
+
|Biomass burning injection height profiles
−
|[[Nested Model Working Group]]
+
|Inderjeet Singh (WashU)
 +
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Re-evaluation of SST dependence of sea salt emissions
+
|OCIM integration
−
|Jiayue Huang (UW)
+
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
 +
|
 
|
 
|
−
 
−
|}
 
−
 
−
--[[User:Melissa Payer|Melissa Sulprizio]] 14:08, 11 May 2015 (EDT)
 
−
 
−
=== On hold indefinitely ===
 
−
 
−
{| border=1 cellspacing=0 cellpadding=5
 
−
|- bgcolor="#cccccc"
 
−
!width="400px"|Item
 
−
!width="300px"|Author(s)
 
−
!width="400px"|Status
 
  
 
|-valign="top"
 
|-valign="top"
−
|TNO emissions over Europe (7km)
+
|Updating landcover products in GEOS-Chem
−
|[http://acmg.seas.harvard.edu/geos/geos_people.html#athens Greece team]
+
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
 +
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Update HCN simulation, implement in standard model via FlexChem
+
|Dry deposition physical improvement
−
|Jenny Fisher (U. Wollongong)
+
|Chris Holmes (FSU)
 +
|Dry deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
−
|Implement biogenic emissions of ethane, propane
+
|TOMAS WRF-GC in regional Thailand simulation
−
|Zitely Tzompa (CSU)
+
|Win Trivitayanurak (Chulalongkorn U)
 +
|Aerosols
 
|
 
|
  
 
|}
 
|}
−
 
−
--[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 14:14, 20 October 2016 (UTC)
 

Latest revision as of 20:39, 2 May 2024

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.

Merged and awaiting release

See the links below for items merged and awaiting release.

Mergeable at any time Version in development
GEOS-Chem no-diff-to-benchmark GEOS-Chem 14.4.0

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
Global continental chlorine (pCl and HCl) emissions Bingqing Zhang (Georgia Tech)
Pengfei Liu (Georgia Tech) 		Emissions Simple
New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa) 		Emissions Medium
Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4 Lizzie Lundgren (Harvard) GC-Classic Medium
Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard) 		Diagnostics Medium

Prioritized and in the queue

Features listed in this table are prioritized for integration into GEOS-Chem in the near future.

Feature Contributor(s) Model scope Ease of implementation Delivery status Notes and References
ALK4 & R4N2 chemistry Jared Brewer (UMN) Chemistry TBD Not delivered
Mass flux regridding fix in MAPL Tom Clune (GMAO)
Seb Eastham (MIT) 		GCHP input regridding Medium
  • GCHP Issue #377
  • Currently on hold, as the submitted update results in zero diff
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple Delivered
  • geos-chem issue #1745
  • Currently on hold while an issue with seasonality in the new CEDS data is being investigated by the authors.

Ready to go in

Features listed in this table are ready to go in but have either not been delivered or are not yet prioritized for integration into GEOS-Chem.

Feature Contributor(s) Model scope Delivery status Notes and References
KORUS-AQ emissions for East Asia (as an option) Katie Travis (NASA) Emissions Simple
Geologic emission of ethane and propane Matthew Rowlinson and Mat Evans(York) Emissions Delivered
Jan 2023
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam(CUHK)
Amos Tai (CUHK) 		Science Delivered
Feb 2021
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100 Yang Li (Baylor University)
Loretta Mickley (Harvard) 		Emissions Delivered
Jul 2021
  • Data involves many files- need to think about temporal frequency
Online H2 chemistry Maria Paula Pérez-Peña (UNSW)
Jenny Fisher (UOW)
Dylan Millet (UMN) 		Chemistry Delivered
June 2023
DMS Chemistry Linia Tashmim (UC Riverside)
William Porter (UC Riverside) 		Chemistry Not delivered
Organic acids (RCOOH) Katie Travis (NASA) Chemistry Not delivered
Improve carbon & nitrogen conservation in reactions Kelvin Bates (Harvard) Chemistry Not delivered
Blowing snow sea salt in TOMAS Betty Croft (Dalhousie) Aerosols Not delivered
Australian anthropogenic Hg emissions Stephen MacFarlane (UOW)
Jenny Fisher (UOW)
Hannah Horowitz (U. Illinois)
Viral Shah (Harvard) 		Hg simulation Not delivered
WRF-GC Hg simulation Xiaotian Xu (Nanjing U.)
Yanxu Zhang (Nanjing U.) 		Hg simulation
WRF-GC 		Not delivered
Updated HgII gas-partical partitioning Kaiyun Liu (Tsinghua U.)
Qingru Wu (Tsinghua U.)
Shuxiao Wang (Tsinghua U.) 		Hg simulation Not delivered
  • Should be option, not default
Dry deposition to F90 (readability) Chris Holmes (FSU) Dry deposition Not delivered

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
PPN+hv, PPN+OH Robert Ryan (UCL) Chemistry
MBO Michael Vermeuel (UMN) Chemistry
Initial conditions for CH4 correcting background and stratospheric biases Todd Mooring (Harvard) Methane simulation
Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism Bob Yantosca (Harvard) Aerosols
Structural
  • Ongoing
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
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
Canopy Physics Model Sam Silva (MIT) Emissions &
Science
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone Bob Yantosca (Harvard) Model performance
  • Ongoing (will be done as time allows)
Assess memory leak in GCHP Killian Murphy (York) Model performance
Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT)
Killian Murphy (York) 		Model performance
Improve pressure handling in GCHP advection Seb Eastham (MIT)
Yuanjian Zhang (WashU) 		GCHP
Use ExtData2G as default GCHP input module Lizzie Lundgren (Harvard) GCHP Will replace ExtData.rc with yaml file

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
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
Modularization of aerosols code for interface with GOCART in GEOS Christoph Keller (GMAO) Structural
Improve load balancing in GCHP Seb Eastham (MIT) Model performance
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
MAPL version 3 Lizzie Lundgren (Harvard) GCHP Will include History wildcard handling in GCHP


Migrate benchmark meteorology from MERRA2 to GEOS-IT GCST Benchmarking

Longer term (12-24 months)

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

Feature Contributor(s) Model scope Notes and References
Updates to Aromatic chemistry Stephen MacFarlane (UOW)
Jenny Fisher (UOW) 		Chemistry
Nitrate photolysis Mat Evans (York)
Thomas Sherwen (York)
Matthew Rowlinson (York) 		Chemistry
In aerosol chemistry Halogens Mat Evans (York)
Hansen Cao (CU Boulder) 		Chemistry
Benchmark box model of GC Chemistry Katie Travis (NASA) Chemistry
Alkyl nitrates Alk7, PHAN Katie Travis (NASA) Chemistry
Add stratospheric ozone species to full-chemistry simulations Lee Murray (Rochester) Chemistry
Perchlorate chemistry Yuk Chun Chan (UWAB) Chemistry
Explicit heterogeneous sulfate chemistry Katie Travis (NASA)
Becky Alexander (UT) 		Chemistry
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
TOMAS WRF-GC in regional Thailand simulation Win Trivitayanurak (Chulalongkorn U) Aerosols
Retrieved from "https://wiki.seas.harvard.edu/geos-chem/index.php?title=GEOS-Chem_model_development_priorities&oldid=53346"