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

Latest revision as of 16:35, 7 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
Extend GFED4 emissions through 2023	Sarah Hancock (Harvard) Melissa Sulprizio (Harvard)	Emissions	Simple	geos-chem PR #2282
New soil NOx parameterization	Yi Wang (U. Iowa) Jun Wang (U. Iowa)	Emissions	Medium	geos-chem issue #1288 Incorporates new met field TSOIL1

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	geos-chem issue #1625 Brewer, J.F. et al., J. Geophys. Res., 2023.
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.
Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4	Lizzie Lundgren (Harvard)	GC-Classic	Medium		hemco issue #18
Capture all trop and PBL height changes in budget diagnostics	Chris Holmes (FSU) Lizzie Lundgren (Harvard)	Diagnostics	Medium	Delivered	geos-chem PR 2103

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	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
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange	Joey Lam(CUHK) Amos Tai (CUHK)	Science	Delivered Feb 2021	geos-chem PR #629
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	Pérez-Peña, M.P. et al., ACP, 2022. Implemented in v12.5, needs to be brought up to current version
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	DOI: 10.5281/zenodo.3614062 Needs to be updated to a more recent GEOS-Chem version
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	NOTE: Most memory leaks in GCHP have been fixed by geoschem/geos-chem PR #1353. Will wait until MAPL3 to further assess.
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
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

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

Latest revision as of 16:35, 7 May 2024

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Merged and awaiting release

Feature integration in progress

Prioritized and in the queue

Ready to go in

Almost there (< 6 months)

Over the horizon (6-12 months)

Longer term (12-24 months)

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@@ Line 1: / Line 1: @@
-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 will be continuously updated based on code readiness and input from the Working Groups and the Steering Committee.
+On this page we list the current priorities for GEOS-Chem development. This list is continuously updated based on code readiness and input from the [https://geos-chem.seas.harvard.edu/geos-working-groups Working Groups] and the [https://geos-chem.seas.harvard.edu/geos-steering-cmte Steering Committee]. For history of past releases see the [[GEOS-Chem_versions|GEOS-Chem Versions wiki page]].
-We also invite you to view our [https://trello.com/board/geos-chem-support-team/4fe36668fc79a1d3540ba80b GEOS-Chem Support Team project management board on Trello.com], which shows the current GCST workflow.
+== Merged and awaiting release ==
-== List of priorities from IGC8 ==
+See the links below for items merged and awaiting release.
-The items listed below are in different stages of readiness and will be included in future versions of the model.
-=== Slated for v11-03 ===
-The following updates are now slated for inclusion into [[GEOS-Chem v11-03]]:
 {| border=1 cellspacing=0 cellpadding=5
 |-bgcolor="#CCCCCC"
-!width="400px"|Feature
+!width="300px"|Mergeable at any time
-!width="250px"|Submitted by
+!width="200px"|Version in development
-!width="100px"|Type
-!width="250px"|Status
-|-
-!colspan="4" bgcolor="#CCFFFF"|Transport updates
 |-valign="top"
-|[[Transport_Working_Group#Common_set_of_tracers_in_GEOS-Chem_and_GEOS|Common set of tracers in GEOS-Chem and GEOS]]
+|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
-|Transport WG<br>[[GCST]]
+|align="center"|'''[[GEOS-Chem 14.4.0]]'''
-|Benchmarking
-|
-*Ready to be added
-|-
+|}
-!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
-|-valign="top"
+== Feature integration in progress ==
-|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
-|Sebastian Eastham (MIT)
-|Science
-|
-*Ready to be added
-|-valign="top"
+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.
-|[[Chemistry_Issues#Script_for_evaluating_carbon_balance|Script for checking N, C, etc. balance in chemistry mechanism]]
-|Barron Henderson (EPA)
-|Software
-|
-|-
+{| border=1 cellspacing=0 cellpadding=5
-!colspan="4" bgcolor="#CCFFFF"|Emissions updates
+|-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"
-|[[Volcanic_SO2_emissions_from_Aerocom#OMI-based_volcanic_emissions|OMI-based volcanic emissions 2005-2012]]
+|Extend GFED4 emissions through 2023
-|Cui Ge (U. Iowa)<br>Jun Wang (U. Iowa)
+|Sarah Hancock (Harvard)<br>Melissa Sulprizio (Harvard)
-|Science
+|Emissions
+|Simple
 |
-*Need to implement a fix to handle missing data for 2012/09 thru 2012/12.  We can do one of 2 things:
+*[https://github.com/geoschem/geos-chem/pull/2282 geos-chem PR #2282]
-**Create files with zero emissions for 2012/09 thru 2012/12.
-***But because data for 2013- is copied from 2012, this will mean that the last 3 months of the year have no volcano emissions.
-**Link to the existing volcano emsisions files for September thru December
 |-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/1288 New soil NOx parameterization]
-|Sajeev Philip (Dalhousie)
+|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
-|Science
+|Emissions
+|Medium
 |
-*Deferred to v11-03.  Need to fix an "under-the-hood" issue in HEMCO that causes 1200 Tg of dust to be emitted by this update.
+*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
+*Incorporates new met field TSOIL1
-|-valign="top"
+|}
-|[[FINNv1_biomass_burning_emissions|FINN biomass burning emissions for 2014-2016]]
-|Barron Henderson (US EPA)
-|Science
-|
-*Deferred to v11-03, pending receipt of corrected data files
-|-valign="top"
+== Prioritized and in the queue ==
-|EPA NEI2011 Version EK
-|Zitely Tzompa-Sosa (CSU)<br>Emily Fischer (CSU)
-|Science
-|
-*Deferred to v11-03; need extra time for validation
+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"
-|EPA-derived BC/OA emissions over US (1990-2012)
+|ALK4 & R4N2 chemistry
-|David Ridley (MIT)<br>Chi Li (Dalhousie)
+|Jared Brewer (UMN)
-|Science
+|Chemistry
+|TBD
+|Not delivered
 |
-*Need to coordinate between Ridley and Li versions
+*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
+*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., 2023.]
 |-valign="top"
-|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+|Mass flux regridding fix in MAPL
-|Fabien Paulot (NOAA/GFDL)
+|Tom Clune (GMAO)<br>Seb Eastham (MIT)
-|Science
+|GCHP input regridding
+|Medium
 |
-*Data files delivered to GCST (Jan 2016)
-*Needs to be implemented via HEMCO
-|-valign="top"
-|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
-|Maria Zatko (UW)<br>Becky Alexander (UW)
-|Science
 |
-*Delivered to GCST (Nov 2017)
+*[https://github.com/geoschem/GCHP/issues/377 GCHP Issue #377]
-*Implemented in v9-01-01
+*'''Currently on hold, as the submitted update results in zero diff'''
-*Needs to be added as a HEMCO extension
 |-valign="top"
-|[[MASAGE_NH3_inventory|MASAGE inventory in HEMCO as default]]
+|New version of CEDS at 0.1 deg
-|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
+|Dandan Zhang (WashU)
-|Science
+|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.'''
 |-valign="top"
-|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
+|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
-|Amos Tai (CUHK)
+|Lizzie Lundgren (Harvard)
-|Science
+|GC-Classic
+|Medium
 |
-|-valign="top"
-|Radon emission update
-|Bo Zhang (NIA/NASA Langley)
-|Science
 |
-*Delivered to GCST (Nov 2017)
+*[https://github.com/geoschem/HEMCO/issues/18 hemco issue #18]
-*Implementation pending paper submission
 |-valign="top"
-|GFAS biomass burning emissions
+|Capture all trop and PBL height changes in budget diagnostics
-|Mat Evans (York)
+|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
-|Science
+|Diagnostics
+|Medium
+|Delivered
 |
+*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
-|-
+|}
-!colspan="4" bgcolor="#CCFFFF"|Deposition/surface updates
-|-valign="top"
+== Ready to go in ==
-|Wet scavenging in mixed-phase clouds
-|Bo Zhang (NIA/NASA Langley)
-|Science
-|
-*Delivered to GCST (Nov 2017)
-*Only applied/tested for Pb
-*Implementation pending paper submission
-|-
+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.
-!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
-|-valign="top"
+{| border=1 cellspacing=0 cellpadding=5
-|Sea salt aerosol alkalinity
+|-bgcolor="#CCCCCC"
-|Qianjie Chen (UW)<br>Becky Alexander (UW)<br>Xuan Wang (Harvard)
+!width="200px"|Feature
-|Science
+!width="200px"|Contributor(s)
-|
+!width="100px"|Model scope
-*UW version delivered to GCST (Nov 2017)
+!width="100px"|Delivery status
+!width="300px"|Notes and References
 |-valign="top"
-|VBS SOA option
+|KORUS-AQ emissions for East Asia (as an option)
-|Rokjin Park (SNU)
+|Katie Travis (NASA)
-|Science
+|Emissions
+|Simple
 |
-|-
-!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
 |-valign="top"
-|AMAP/UNEP 2035 for Hg simulation
+|Geologic emission of ethane and propane
-|Helene Angot (MIT)
+|Matthew Rowlinson and Mat Evans(York)
-|Science
+|Emissions
+|Delivered<br>Jan 2023
 |
-*Ready to be added
+*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"
-|Oxidant fields from v10 for 2006-2012
+|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
-*3D chemical source for CO2, CO
+|Joey Lam(CUHK)<br>Amos Tai (CUHK)
-*OH for tagged CO & CH4
-|Dylan Jones (UofT)
 |Science
+|Delivered<br>Feb 2021
 |
-*Will make data files available on ftp site
+*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
 |-valign="top"
-|Africa nested-grid for GEOS-FP and MERRA-2
+|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
-|Eloise Marais (U. Birmingham)
+|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
-|Science
+|Emissions
+|Delivered<br>Jul 2021
 |
-*Delivered to GCST (Dec 2017)
+*Data involves many files- need to think about temporal frequency
 |-valign="top"
-|West Africa nested-grid for GEOS-FP
+|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
-|Mat Evans (York)<br>Eleanor Morris (York)
+|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
-|Science
+|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"
-|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
+|DMS Chemistry
-|Becky Alexander (UW)
+|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
-|Science
+|Chemistry
+|Not delivered
 |
 |-valign="top"
-|Arsenic simulation
+|Organic acids (RCOOH)
-|Shiliang Wu (MT)
+|Katie Travis (NASA)
-|Science
+|Chemistry
+|Not delivered
 |
-|-
-!colspan="4" bgcolor="#CCFFFF"|Structural updates
 |-valign="top"
-|Updated flux diagnostics
+|Improve carbon & nitrogen conservation in reactions
-|Chris Holmes (Florida State)<br>[[GCST]]
+|Kelvin Bates (Harvard)
-|Structural/<br>Benchmarking
+|Chemistry
+|Not delivered
 |
-*Deferred to v11-03
 |-valign="top"
-|Additional modifications for [[FlexChem]], including:
+|Blowing snow sea salt in TOMAS
-*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+|Betty Croft (Dalhousie)
-*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+|Aerosols
-|[[GCST]]
+|Not delivered
-|Structural
 |
-*Work not started yet
 |-valign="top"
-|Benchmark of stratospheric simulation
+|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
-|Dylan Jones (U. Toronto)
+|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
-|Benchmarking
+|Hg simulation
+|Not delivered
 |
-*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"
-|Add total column O3 to benchmarks
+|WRF-GC Hg simulation
-|Chris Holmes (FSU)<br>[[GCST]]
+|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
-|Benchmarking
+|Hg simulation<br>WRF-GC
+|Not delivered
 |
-*Deferred until v11-03
 |-valign="top"
-|[[GEOS-Chem_species_units|Uniformity of units]]
+|Updated HgII gas-partical partitioning
-|[[GCST]]
+|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
-|Structural
+|Hg simulation
+|Not delivered
 |
-*Phase 2 (unit uniformity throughout chemistry) to be implemented after Flexchem
+*Should be option, not default
-*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"
-|ObsPack diagnostic as netCDF replacement for planeflight_mod.F
+|Dry deposition to F90 (readability)
-|Andy Jacobson (NOAA/ESRL)
+|Chris Holmes (FSU)
-|Structural
+|Dry deposition
+|Not delivered
 |
-*Delivered to GCST (May 2017)
-|-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]]
-|[[GCST]]<br>Christoph Keller
-|Bug fix<br>Structural
-|
-|-valign="top"
-|Further structural updates to facilitate interfacing GEOS-Chem with external models (e.g. CAM, CESM)
-|[[GCST]]
-|Structural
-|
-*Ongoing
-|-
-!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
-|-valign="top"
-|[[FlexGrid|FlexGrid: Use HEMCO to read met fields and enable nested simulations over any custom domains]]
-|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
-|Structural
-|
-*Delivered to GCST (Oct 2016)
-*Deferred to v11-03
-|-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]]
-|Seb Eastham (Harvard)
-|Science
-|
-*Delivered to GCST (May 2017)
-|-valign="top"
-|Archival of roughness length for temperature z0T
-|[[GCST]]
-|Met processing
-|
-*Work not started yet
 |}
-=== Not prioritized for v11-03 ===
+== Almost there (< 6 months) ==
-{| border=1 cellspacing=0 cellpadding=5
+Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
-|- bgcolor="#cccccc"
-!width="400px"|Item
-!width="250px"|Author(s)
-!width="100px"|Type
-!width="250px"|Status
-|-valign="top"
+{|border=1 cellspacing=0 cellpadding=5
-|Sea salt emission from sea ice
-|Jiayue Huang (UW)
-|Science
-|
-|-valign="top"
-|Re-evaluation of SST dependence of sea salt emissions
-|Jiayue Huang (UW)
-|Science
-|
-|-valign="top"
-|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#Discussion_of_LAI_Data_Sources|Update MODIS LAI fields through 2015]]
-|Barron Henderson (UF)
-|Science
-|
-|-valign="top"
-|Lightning NOx chemistry parameterization
-|Alicia Gressent (MIT)
-|Science
-|
-|}
-=== Almost there (< 6 months) ===
-{| border=1 cellspacing=0 cellpadding=5
 |- bgcolor="#cccccc"
-!width="400px"|Item
+!width="200px"|Feature
-!width="250px"|Author(s)
+!width="200px"|Contributor(s)
-!width="100px"|Type
+!width="100px"|Model scope
-!width="250px"|Status
+!width="420px"|Notes and References
 |-valign="top"
-|Grid-independent emissions, including:
+|PPN+hv, PPN+OH
-*Lightning NOx emissions (3-hourly)
+|Robert Ryan (UCL)
-*Dust emissions (hourly)
+|Chemistry
-*Biogenic and sea salt emissions (hourly)
-|Randall Martin (Dalhousie)<br>Lee Murray (Rochester)<br>David Ridley (MIT)<br>Jintai Lin (PKU)
-|Science
 |
-*GCST is waiting to receive data files from developers
-*Will also be used for GCHP v11-02
 |-valign="top"
-|[https://www.geosci-model-dev-discuss.net/gmd-2017-125/ GEOS resolution & subgrid convection]
+|MBO
-|Karen Yu (Harvard)
+|Michael Vermeuel (UMN)
-|Science
+|Chemistry
 |
-*To be installed by Bob Yantosca (Harvard), tested by Tailong He (Toronto)
-*Work to begin after v11-02 release
 |-valign="top"
-|Updated chlorine chemistry
+|Initial conditions for CH4 correcting background and stratospheric biases
-|Xuan Wang (Harvard)
+|Todd Mooring (Harvard)
-|Science
+|Methane simulation
 |
-*Defer until the paper is submitted
 |-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]]
+|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
-|Katie Travis (MIT)
+|Bob Yantosca (Harvard)
-|Structural
+|Aerosols<br>Structural
 |
-*Defer until the paper is submitted
+*Ongoing
 |-valign="top"
-|N2O5 hydrolysis updates
+|Re-binning of off-line sea salt and dust for use in TOMAS
-|Viral Shah (UW)
+|Betty Croft (Dalhousie)
-|Science
+|Aerosols
 |
-*Defer until paper is submitted (i.e. to summer 2018)
-*Code changes from v10/SMVGEAR need to be translated to v11/FlexChem
 |-valign="top"
-|Aromatics and dicarbonyl chemistry
+|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
-|William Porter (MIT)<br>Tzung-May Fu (PKU)
+|Betty Croft (Dalhousie)
-|Science
+|Aerosols
 |
 |-valign="top"
-|Diagnostic for species lifetime
+|ML algorithms for bulk aerosols
-|[[GCST]]
+|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
-|Science
+|Aerosols
 |
 |-valign="top"
-|Document chemical mechanism in KPP file
+|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
-|Mat Evans (York)
+|Shixian Zhai (Harvard)
-|Structural
+|Aerosols
 |
 |-valign="top"
-|Carbon bottom up fluxes: anthro, ocean, land
+|Updates to Hodzic SOA scheme
-|Kevin Bowman (JPL)
+|Jared Brewer (Harvard)
-|Science
+|Aerosols
 |
 |-valign="top"
-|CESM-GC offline coupling in standard model + benchmark
+|Automated reduction in isoprene scheme
-|Rokjin Park (SNU)<br>Daniel Rothenberg (MIT)
+|Dan Westervelt (Lamont-Doherty)
-|Science
+|Aerosols
 |
 |-valign="top"
-|CESM-GC GCHP
+|Brown carbon chemsitry
-|Daniel Rothenberg (MIT)
+|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
-|Science
+|Aerosols
 |
 |-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
 |
 |-valign="top"
-|Diurnal variability for NH3
+|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
-|Henze group
+|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"
-|OH + NO2 rate update
+|Updated biomass burning emission factors and species
-|Barron Henderson (EPA)
+|Tess Carter (MIT)
-|Science
+|Emissions
 |
 |-valign="top"
-|Land cover module: Harmonized biosphere-atmosphere exchange and implementing CLM or manual land cover change experiments
+|Updated offline sea salt emissions
-|Jeff Geddes (BU)
+|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
-|Science
+|Emissions
 |
 |-valign="top"
-|H2 chemistry in UCX
+|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
-|Chris Holmes (FSU)
+|Sam Silva (MIT)
-|Science
+|Emissions &<br>Science
 |
+*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
+*Needs to be updated to a more recent GEOS-Chem version
 |-valign="top"
-|Uptake of HNO3 onto coarse-mode sea salt
+|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
-|Prasad Kasibhatla (Duke)
+|Bob Yantosca (Harvard)
-|Science
+|Model performance
 |
+*Ongoing (will be done as time allows)
 |-valign="top"
-|Photolysis of NITs
+|Assess memory leak in GCHP
-|Prasad Kasibhatla (Duke)
+|Killian Murphy (York)
-|Science
+|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"
-|[[POPs simulation#PCB simulation|PCB simulation]]
+|Hybrid MPI-OpenMP in GCHP
-|Colin Thackray (Harvard)<br>Carey Friedman (formerly MIT)<br>Helen Amos (formerly Harvard)
+|Seb Eastham (MIT)<br>Killian Murphy (York)
-|Science
+|Model performance
 |
 |-valign="top"
-|New EDGAR sectoral inventory for Hg (1970-2012)
+|Improve pressure handling in GCHP advection
-|Amanda Giang (MIT)
+|Seb Eastham (MIT)<br>Yuanjian Zhang (WashU)
-|Science
+|GCHP
 |
 |-valign="top"
-|Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc.
+|Use ExtData2G as default GCHP input module
-|Sarah Safieddine (MIT)<br>GCST
+|Lizzie Lundgren (Harvard)
-|Science
+|GCHP
-|
+|Will replace ExtData.rc with yaml file
-|-valign="top"
+|}
-|Archive GISS met fields from RCP scenarios for community
-|Lee Murray (Rochester)
-|Science
-|
-|-valign="top"
+== Over the horizon (6-12 months) ==
-|Online O3-LAI coupling in GEOS-Chem
-|Amos Tai (CUHK)
-|Science
-|
-|-valign="top"
+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.
-|Clean up SOA diagnostics
-|GCST
-|Structural
-|
-|-valign="top"
-|Calculation consistency throughout code: surface area, HGF (via species database)
-|GCST
-|Structural
-|
-|-valign="top"
-|Harmonizing Henry's Law coefficients across wet and dry deposition
-|[[GCST]]
-|Science
-|
-*Work not started yet. Will need input from the community.
-|}
-=== Over the horizon (6-12 months) ===
 {| border=1 cellspacing=0 cellpadding=5
 |- bgcolor="#cccccc"
-!width="400px"|Item
+!width="200px"|Feature
-!width="250px"|Author(s)
+!width="200px"|Contributor(s)
-!width="100px"|Type
+!width="100px"|Model scope
-!width="250px"|Status
+!width="420px"|Notes and References
 |-valign="top"
-|MEIC emissions over China (2000-2015)
+|Snow / Icy Bromine
-|Lu Shen (Harvard)<br>Melissa Sulprizio (Harvard)
+|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
-|Science
+|Chemistry
 |
-*Implementation delayed until MEIC paper is published
 |-valign="top"
-|GISS-GC (ICECAP/GCAP2) in standard model + benchmark
+|Monoterpene oxidation scheme
-|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+|Jessica Haskins (MIT)
-|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"
-|GISS-GC GCHP
+|Fire related VOCs including furans
-|Lee Murray (Rochester)<br>Pengfei Liu (Harvard)<br>Yang Li (Harvard)
+|Lu Hu (UMT)<br>Lixu Jin (UMT)
-|Science
+|Chemistry
 |
-*Rochester and Harvard groups are coordinating, to avoid duplication of effort
 |-valign="top"
-|Dynamic fire modeling/prediction
+|Extension of UCX into the mesosphere
-|Shiliang Wu (MNT)
+|Seb Eastham (MIT)<br>Eric Fleming (NASA)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Interannually varying ocean model BCs for Hg from ocean model
+|Methane flux ingestion
-|Colin Thackray (Harvard)
+|Eloise Marais (UCL)
-|Science
+|Chemistry
 |
 |-valign="top"
-|PAH & PFCA simulations
+|Dust non-sphericity impacts on surface chem and optical properties
-|Peter Ivatt (York)<br>Mat Evans (York)<br>Noelle Selin (MIT)<br>Colin Thackray (Harvard)
+|Inderjeet Singh (WashU)
-|Science
+|Aerosols
 |
 |-valign="top"
-|CH4 in full chemistry simulation
+|Size-resolved stratospheric aerosol
-|Seb Eastham (Harvard)
+|Seb Eastham (MIT)
-|Science
+|Aerosols
 |
 |-valign="top"
-|Standard future land use maps (PFT, LAI) for RCP/CMIP6 simulations
+|Extend aerosol settling
-|Colette Heald (MIT)<br>Loretta Mickley (Harvard)
+|Eloise Marais (UCL)
-|Science
+|Aerosols
 |
 |-valign="top"
-|Archive GISS met fields from CMIP6 scenarios for community
+|Stratospheric aerosol APM
-|Lee Murray (Rochester)
+|Fangqun Yu (SUNY)
-|Science
+|Aerosols
 |
 |-valign="top"
-|Updates to cold-temperature deposition
+|Plume-in-grid model
-|Lyatt Jaegle (UW)
+|Hongwei Sun (Harvard)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Simple parameterization for CO2-O3 dependence of stomatal resistance
+|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
-|Amos Tai (CUHK)
+|Lee Murray (Rochester)
-|Science
+|Emissions
 |
 |-valign="top"
-|NH3 emissions over China
+|Seb aircraft emissions beyond recent 2019 update
-|Lin Zhang (PKU)
+|Seb Eastham (MIT)
-|Science
+|Emissions
 |
 |-valign="top"
-|Using GEOS-Chem within GEOS-5
+|FRP-based fire emsisions for eastern US at 0.2	deg
-|Loretta Mickley (Harvard)
+|Charlie Fite (FSU)
-|Science
+|Emissions
 |
 |-valign="top"
-|Carbon cycle outputs in xCO2, xCH4 as a diagnostic
+|Hg iodine chemistry
-|Beata Bukosa (Wollongong)<br>Dylan Jones (UofT)
+|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
-|Science
+|Hg simulation
 |
 |-valign="top"
-|Seasonal EMEP emissions back to 1980
+|Hg simulation in GCHP
-|Mat Evans (York)
+|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
-|Science
+|Hg simulation
 |
 |-valign="top"
-|Updates to NO2 dry deposition
+|Update Hg ocean and soil boundary conditions for consistency with new chemistry
-|Brian Boys (Dalhousie)
+|Yanxu Zhang (Nanjing U.)
-|Science
+|Hg simulation
 |
 |-valign="top"
-|APM update and integration with most recent GEOS-Chem version
+|Dry deposition diagnostics by land cover
-|Gan Luo (SUNY Albany)
+|Holly Nowell (FSU)
-|Structural
+|Diagnostics
 |
 |-valign="top"
-|Cosmogenic tracer production
+|Dry deposition process diagnostics
-|Lee Murray (Rochester)
+|Holly Nowell (FSU)
-|Science
+|Diagnostics
 |
 |-valign="top"
-|Explore resolution-consistent dust emissions
+|Isotope simulation for CO and CH4 in GCHP
-*Make high-res concentrations or mass fluxes available offline, implement in met field processing
+|Lee Murray (Rochester)
-|David Ridley (MIT)<br>GCST<br>Nested Model WG
+|Carbon simulation
-|Science
 |
 |-valign="top"
-|Dust emissions at nested-grid resolutions
+|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
-|Yuxuan Wang (U. Houston)<br>Jun Wang (U. Iowa)
+|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
-|Science
+|Emissions<br>CH4 simulation
 |
-*Check for overlap with resolution-consistent dust emissions above
 |-valign="top"
-|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Update SO2 scavenging in convective updrafts for consistency]]
+|Modularization of aerosols code for interface with GOCART in GEOS
-|Duncan Fairlie (NASA/LARC)
+|Christoph Keller (GMAO)
-|Science
+|Structural
 |
-|}
-=== Longer term (12-24 months)===
-{| border=1 cellspacing=0 cellpadding=5
-|- bgcolor="#cccccc"
-!width="400px"|Item
-!width="250px"|Author(s)
-!width="100px"|Type
-!width="250px"|Status
 |-valign="top"
-|GCHP stretched grid
+|Improve load balancing in GCHP
-|Jiawei Zhuang (Harvard)
+|Seb Eastham (MIT)
-|Science
+|Model performance
 |
 |-valign="top"
-|1/8 degree nested-grid simulations with GEOS-FP
+|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
-|Nested Model WG
+|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
-|Science
+|Transport
 |
-*Wait for more interest
 |-valign="top"
-|Embedding GEOS-Chem into CESM
+|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
-|Jean-Francois Lamarque (NCAR)
+|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
-|Science
+|Transport
 |
 |-valign="top"
-|Adjoint of carbon cycle simulation in GCHP
+|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
-|Kevin Bowman (JPL)
+|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
-|Science
+|Transport
 |
 |-valign="top"
-|Isoprene chemistry v2 (new Caltech update)
+|MAPL version 3
-|Kelvin Bates (Caltech)
+|Lizzie Lundgren (Harvard)
-|Science
+|GCHP
-|
+|Will include History wildcard handling in GCHP
-|-valign="top"
-|Contemporary land cover: developing historical and updated GEOS-Chem land cover maps based on satellite remote sensing
-|Jeff Geddes (BU)
-|Science
-|
 |-valign="top"
-|Farquhar-Ball-Barry model to calculate stomatal resistance
+|Migrate benchmark meteorology from MERRA2 to GEOS-IT
-|Amos Tai (CUHK)<br>Jeff Geddes (BU)
+|GCST
-|Science
+|Benchmarking
 |
-|-valign="top"
+|}
-|Impacts of chemistry on ecosystem/carbon cycle
-|Kevin Bowman (JPL)<br>Anthony Bloom (JPL)
-|Science
-|
-|-valign="top"
+== Longer term (12-24 months)==
-|Improved lightning emission scheme
-|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.
-|Resolution-independent lightning NOx
-|Lee Murray (Rochester)
-|Science
-|
-|-valign="top"
+{| border=1 cellspacing=0 cellpadding=5
-|Bidirectional NH3 emissions
+|- bgcolor="#cccccc"
-|Juliet Zhu (CSU)
+!width="200px"|Feature
-|Science
+!width="200px"|Contributor(s)
-|
+!width="100px"|Model scope
+!width="420px"|Notes and References
 |-valign="top"
-|Country-based weekday/weekend variability for EDGAR 4.2
+|Updates to Aromatic chemistry
-|Lee Murray (Rochester)<br>Christoph Keller (Harvard)
+|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Update keytone photolysis
+|Nitrate photolysis
-|Jared Brewer (CSU)<br>Emily Fischer (CSU)
+|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Small alkyl nitrates
+|In aerosol chemistry Halogens
-|Jenny Fisher (Wollongong)
+|Mat Evans (York)<br>Hansen Cao (CU Boulder)
-|Science
+|Chemistry
 |
 |-valign="top"
-|YIBS-GC chemistry-biosphere-fire coupling
+|Benchmark box model of GC Chemistry
-|Loretta Mickley (Harvard)<br>Xu Yue (IAP)
+|Katie Travis (NASA)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Nitrogen-LAI coupling
+|Alkyl nitrates Alk7, PHAN
-|Lin Zhang (PKU)<br>Amos Tai (CUHK)
+|Katie Travis (NASA)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Implementing humidity/VPD dependence of dry deposition
+|Add stratospheric ozone species to full-chemistry simulations
-|Jennifer Murphy (U. Toronto)
+|Lee Murray (Rochester)
-|Science
+|Chemistry
 |
 |-valign="top"
-|SO2 wet scavenging
+|Perchlorate chemistry
-|Duncan Fairlie (NASA Langley)
+|Yuk Chun Chan (UWAB)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Heterogeneous sulfate production
+|Explicit heterogeneous sulfate chemistry
-|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+|Katie Travis (NASA)<br>Becky Alexander (UT)
-|Science
+|Chemistry
 |
 |-valign="top"
-|MOSAIC implementation
+|HOx and ozone "emissions" from lightning as option in model to play with
-|Sebastian Eastham (Harvard)
+|Jingqiu (Alaska)<br>Lee Murray (Rochester)
-|Science
+|Emissions
 |
 |-valign="top"
-|Particle size climatology
+|Sea salt aerosol from sea ice leads
-|Fangqun Yu (SUNY Albany)
+|Hannah Horowitz (U. Illinois)
-|Science
+|Emissions
 |
 |-valign="top"
-|Sea salt/dust size distribution
+|Drought-stress algorithm
-|David Ridley (MIT)<br>Colette Heald (MIT)
+|Wei Li (U. Houston)
-|Science
 |
-|-valign="top"
-|Updates to GTMM
-|Rebecca Stern (Harvard)
-|Science
 |
 |-valign="top"
-|Tracer transport ocean
+|Biomass burning injection height profiles
-|Chris Holmes (FSU)
+|Inderjeet Singh (WashU)
-|Science
+|Emissions
 |
 |-valign="top"
-|Include Hg in full chemistry simulation
+|OCIM integration
-|Noelle Selin (MIT)
+|Chris Holmes (FSU)<br>Lee Murray (Rochester)
-|Science
 |
-|-valign="top"
-|Goddard seasonal weather prediction in GCHP
-|Kevin Bowman (JPL)
-|Science
 |
 |-valign="top"
-|Climate index diagnostics (drought, etc.)
+|Updating landcover products in GEOS-Chem
-|Chemistry-ecosystems-climate WG
+|Chris Holmes (FSU)<br>Jeff Geddes (BU)
-|Structural
+|Input data
 |
 |-valign="top"
-|Joint CO/CO2/CH4 simulation
+|Dry deposition physical improvement
-|Nicholas Deutscher (U. Wollongong)
-|Science
-|
-|-valign="top"
-|Carbon coupling: oceans and terrestrial models
 |Chris Holmes (FSU)
-|Science
+|Dry deposition
 |
-*Ocim-pure physical transport, ECCO-Darwin ocean biogeochemistry
 |-valign="top"
-|DMS oxidation scheme updating
+|TOMAS WRF-GC in regional Thailand simulation
-|Qianjie Chen (UW)<br>Chemistry WG
+|Win Trivitayanurak (Chulalongkorn U)
-|Science
+|Aerosols
-|
-|-valign="top"
-|Limiting NH3 uptake due to OA
-|Rachel Silvern (Harvard)
-|Science
 |
 |}
---[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 15:32, 23 May 2018 (UTC)