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

Latest revision as of 20:55, 18 April 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
Parameterization of SNA and OM dry size	Haihui Zhu (WashU)	Aerosols	Medium	Zhu et al., EGUsphere, submitted 2023. geos-chem PR #1902
New soil NOx parameterization	Yi Wang (U. Iowa) Jun Wang (U. Iowa)	Emissions	Medium	geos-chem issue #1288 Incorporates new met field TSOIL1
Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4	Lizzie Lundgren (Harvard)	GC-Classic	Medium	hemco issue #18
Replace ISORROPIA with HETPv1.0	Lizzie Lundgren (Harvard) Seb Eastham (ICL)	Aerosol thermodynamics	Medium	geos-chem issue #2235
Only convert units for species that need it	Bob Yantosca (Harvard)	Unit conversions	Medium	geos-chem PR #2072
Capture all trop and PBL height changes in budget diagnostics	Chris Holmes (FSU) Lizzie Lundgren (Harvard)	Diagnostics	Medium	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.

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.

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)
Retire all BPCH diagnostics	Bob Yantosca (Harvard)	Diagnostics	Can be done following the TOMAS update for GCHP
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. Need to assess if any memory leaks still remain.
Hybrid MPI-OpenMP in GCHP	Seb Eastham (MIT) Killian Murphy (York)	Model performance
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

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
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

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 20:55, 18 April 2024

Contents

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: @@
-'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
+On this page we list the current priorities for GEOS-Chem development. This list is continuously updated based on code readiness and input from the [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]].
-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.
+== Merged and awaiting release ==
-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.
+See the links below for items merged and awaiting release.
-== Priorities assigned to upcoming GEOS-Chem versions ==
+{| border=1 cellspacing=0 cellpadding=5
+|-bgcolor="#CCCCCC"
+!width="300px"|Mergeable at any time
+!width="200px"|Version in development
-=== 12.9.0 ===
+|-valign="top"
+|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
+|align="center"|'''[[GEOS-Chem 14.4.0]]'''
+|}
-<span style="color:darkorange">'''This version is now under development.  Please see [[GEOS-Chem 12#12.9.0|the ''GEOS-Chem 12'' wiki page]] for more details.'''''</span>
+== Feature integration in progress ==
-=== 13.0.0 ===
+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.
 {| border=1 cellspacing=0 cellpadding=5
 |-bgcolor="#CCCCCC"
-!width="500px"|Feature
+!width="200px"|Feature
-!width="200px"|Submitted by
+!width="200px"|Contributor(s)
-!width="100px"|Type
+!width="100px"|Model scope
+!width="100px"|Ease of implementation
 !width="300px"|Notes and References
 |-valign="top"
-!colspan="4" bgcolor="#CCFFFF"|Updates that will affect full-chemistry simulations
+|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
+|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
+|Emissions
+|Simple
+|
 |-valign="top"
-|Retire carbon-based units for VOCs
+|[https://github.com/geoschem/geos-chem/issues/1747 Parameterization of SNA and OM dry size]
-|GCST
+|Haihui Zhu (WashU)
-|Science
+|Aerosols
+|Medium
 |
+*[https://egusphere.copernicus.org/preprints/2022/egusphere-2022-1292/ Zhu et al., EGUsphere, submitted 2023.]
+*[https://github.com/geoschem/geos-chem/pull/1902 geos-chem PR #1902]
 |-valign="top"
-!colspan="4" bgcolor="#CCFFFF"|Updates that will NOT affect full-chemistry simulations
+|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
+|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"
-|[https://zenodo.org/record/3754964#.XtEVOZ5KjOQ CEDS_GBD-MAPS emission inventory (1970 - 2017)]
+|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
-|Erin McDuffie (Dalhousie)
+|Lizzie Lundgren (Harvard)
-|Science
+|GC-Classic
+|Medium
 |
+*[https://github.com/geoschem/HEMCO/issues/18 hemco issue #18]
 |-valign="top"
-|ODIAC fossil fuel emissions for CO2 simulations
+|Replace ISORROPIA with [https://gmd.copernicus.org/articles/17/2197/2024/ HETPv1.0]
-|Jenny Fisher (UOW)<br>Yi Cao (UOW)
+|Lizzie Lundgren (Harvard)<br>Seb Eastham (ICL)
-|Science
+|Aerosol thermodynamics
+|Medium
 |
-*Delivered to GCST (Jan 2020)
+*[https://github.com/geoschem/geos-chem/issues/2235 geos-chem issue #2235]
-|-valign="top
+|-valign="top"
-|Updated Streets Hg emissions
+|Only convert units for species that need it
-|Colin Thackray (Harvard)
+|Bob Yantosca (Harvard)
-|Science
+|Unit conversions
+|Medium
 |
-*Delivered to GCSG (Jul 2020)
+*[https://github.com/geoschem/geos-chem/pull/2072 geos-chem PR #2072]
-|-valign="top
+|-valign="top"
-|Updated EDGAR 4.3 Hg emissions
+|Capture all trop and PBL height changes in budget diagnostics
-|Amanda Giang (UBC)
+|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
-|Science
+|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"
-|[https://essd.copernicus.org/articles/12/563/2020/essd-12-563-2020.pdf Global Inventory of Methane Emissions from Fuel Exploitation]
+|ALK4 & R4N2 chemistry
-|Tia Scarpelli (Harvard)
+|Jared Brewer (UMN)
-|Science
+|Chemistry
+|TBD
+|Not delivered
 |
+*[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"
-|[https://github.com/geoschem/geos-chem/issues/332 Retire tropchem mechanism; implement new tropchem simulation using Standard mechanism below the tropopause and archived P/L rates above]
+|Mass flux regridding fix in MAPL
-|Melissa Sulprizio (GCST)
+|Tom Clune (GMAO)<br>Seb Eastham (MIT)
-|Science
+|GCHP input regridding
+|Medium
+|
 |
+*[https://github.com/geoschem/GCHP/issues/377 GCHP Issue #377]
+*'''Currently on hold, as the submitted update results in zero diff'''
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/pull/347 Fix bug in RRTMG with stratospheric aerosol]
+|New version of CEDS at 0.1 deg
-|Sebastian Eastham (MIT)
+|Dandan Zhang (WashU)
-|Bug fix
+|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"
-|[https://github.com/geoschem/geos-chem/issues/242 Add global mean OH and CH4 lifetime diagnostics]
+|KORUS-AQ emissions for East Asia (as an option)
-|GCST
+|Katie Travis (NASA)
-|Structural
+|Emissions
+|Simple
 |
 |-valign="top"
-|Retire the GNU Make build system in both GEOS-Chem Classic and GCHP and replace with CMake
+|Geologic emission of ethane and propane
-|Liam Bindle (WashU)<br>GCST
+|Matthew Rowlinson and Mat Evans(York)
-|Structural
+|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"
-|[https://github.com/geoschem/geos-chem/issues/283 Retire the GEOS-Chem Unit Tester repository and move GEOS-Chem run directory creation to the GEOS-Chem source code repository]
+|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
-|Melissa Sulprizio (GCST)
+|Joey Lam(CUHK)<br>Amos Tai (CUHK)
-|Structural
+|Science
+|Delivered<br>Feb 2021
 |
+*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
 |-valign="top"
-|Updates to HEMCO for compatibility with CESM
+|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
-|Haipeng Lin (Harvard)
+|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
-|Structural
+|Emissions
+|Delivered<br>Jul 2021
 |
-*ongoing
+*Data involves many files- need to think about temporal frequency
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/270 Reduction of memory for HISTORY diagnostics with a species dimension]
+|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
-|Bob Yantosca (GCST)
+|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
-|Structural
+|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"
-|[https://github.com/geoschem/geos-chem/issues/311 Removal of HEMCO code from within the non-local PBL mixing modules]
+|DMS Chemistry
-|Bob Yantosca (GCST)
+|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
-|Structural
+|Chemistry
+|Not delivered
+|
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/242 Add global mean OH and CH4 lifetime diagnostics]
+|Organic acids (RCOOH)
-|GCST
+|Katie Travis (NASA)
-|Structural
+|Chemistry
+|Not delivered
 |
+|-valign="top"
-|-
+|Improve carbon & nitrogen conservation in reactions
-!colspan="4" bgcolor="#CCFFFF"|Features only affecting GCHP:
+|Kelvin Bates (Harvard)
+|Chemistry
+|Not delivered
+|
 |-valign="top"
-|Retire the existing GCHP repository and replace with a new wrapper repository that uses ESMF as an external library and integrates GEOS-Chem and NASA/GMAO GEOS-ESM git repositories as git submodules
+|Blowing snow sea salt in TOMAS
-|Lizzie Lundgren (GCST)
+|Betty Croft (Dalhousie)
-|Structural
+|Aerosols
+|Not delivered
 |
 |-valign="top"
-|Separate HEMCO from GEOS-Chem to use as an ESMF gridded component in GCHP
+|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
-|Lizzie Lundgren (GCST)
+|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
-|Structural
+|Hg simulation
+|Not delivered
 |
 |-valign="top"
-|Enable a stretched grid capability in GCHP to run global simulations at regional high resolution
+|WRF-GC Hg simulation
-|Liam Bindle (WashU)
+|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
-|Structural
+|Hg simulation<br>WRF-GC
+|Not delivered
 |
 |-valign="top"
-|Update MAPL (v2.2.7) and GMAO library dependencies
+|Updated HgII gas-partical partitioning
-|Lizzie Lundgren (GCST)
+|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
-|Structural
+|Hg simulation
+|Not delivered
 |
+*Should be option, not default
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/pull/348 Enable GCHP to be compiled with RRTMG]
+|Dry deposition to F90 (readability)
-|Sebastian Eastham (MIT)
+|Chris Holmes (FSU)
-|Science
+|Dry deposition
+|Not delivered
 |
 |}
-== Priorities not yet assigned to a particular version ==
+== Almost there (< 6 months) ==
-The following items have been identified as priorities for GEOS-Chem, but have not yet been assigned to a particular GEOS-Chem version.
+Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
-=== Ready to go in ===
+{|border=1 cellspacing=0 cellpadding=5
+|- bgcolor="#cccccc"
+!width="200px"|Feature
+!width="200px"|Contributor(s)
+!width="100px"|Model scope
+!width="420px"|Notes and References
-{| border=1 cellspacing=0 cellpadding=5
+|-valign="top"
-|-bgcolor="#CCCCCC"
+|PPN+hv, PPN+OH
-!width="500px"|Feature
+|Robert Ryan (UCL)
-!width="200px"|Submitted by
+|Chemistry
-!width="100px"|Type
+|
-!width="300px"|Notes
-|-
+|-valign="top"
-!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+|MBO
+|Michael Vermeuel (UMN)
+|Chemistry
+|
 |-valign="top"
-|Improved wet scavenging (Luo et al., 2020)
+|Initial conditions for CH4 correcting background and stratospheric biases
-|Gan Luo (Albany)<br>Fanqun Yu (Albany)
+|Todd Mooring (Harvard)
-|Science
+|Methane simulation
 |
 |-valign="top"
-|Implement H2 chemistry in UCX
+|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
-|Chris Holmes (FSU)
+|Bob Yantosca (Harvard)
-|Science
+|Aerosols<br>Structural
 |
+*Ongoing
 |-valign="top"
-|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
+|Re-binning of off-line sea salt and dust for use in TOMAS
-|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
+|Betty Croft (Dalhousie)
-|Science
+|Aerosols
 |
-*Delivered to GCST (Jun 2020)
 |-valign="top"
-|[http://acmg.seas.harvard.edu/publications/2020/moch_HMS_submitted_2020.pdf HMS chemistry]
+|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
-|Jonathan Moch (Harvard)
+|Betty Croft (Dalhousie)
-|Science
+|Aerosols
 |
-|-
+|-valign="top"
-!colspan="4" bgcolor="#CCFFFF"|Emissions and surface fluxes updates
+|ML algorithms for bulk aerosols
+|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
+|Aerosols
+|
-|-
+|-valign="top"
-|[https://github.com/geoschem/geos-chem/pull/356 Blowing snow emissions of sea salt and bromine]
+|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
-|Lyatt Jaegle (UW)
+|Shixian Zhai (Harvard)
-|Science
+|Aerosols
 |
-*Delivered to GCST (Jun 2020)
 |-valign="top"
-|Offline CLM Harmonization
+|Updates to Hodzic SOA scheme
-|Anthony Wong (BU)<br>Jeff Geddes (BU)
+|Jared Brewer (Harvard)
-|Science
+|Aerosols
 |
-|-
+|-valign="top"
-!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+|Automated reduction in isoprene scheme
+|Dan Westervelt (Lamont-Doherty)
+|Aerosols
+|
 |-valign="top"
-|Arctic marine SOA
+|Brown carbon chemsitry
-|Betty Croft (Dalhousie)
+|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
-|Science
+|Aerosols
 |
-*Details on wiki only, not in standard code
-|}
+|-valign="top"
+|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
+|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
+|Convection
+|
---[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+|-valign="top"
+|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
-=== Almost there (< 6 months) ===
+|-valign="top"
+|Updated biomass burning emission factors and species
+|Tess Carter (MIT)
+|Emissions
+|
-{| border=1 cellspacing=0 cellpadding=5
+|-valign="top"
-|- bgcolor="#cccccc"
+|Updated offline sea salt emissions
-!width="500px"|Item
+|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
-!width="200px"|Author(s)
+|Emissions
-!width="100px"|Type
+|
-!width="300px"|Notes
 |-valign="top"
-|Provide climatologies for lightning NOx, volcano, and open fire emissions
+|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
-|GCST
+|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"
-|[https://www.geosci-model-dev.net/12/111/2019/gmd-12-111-2019.pdf Aromatic VOC chemistry]
+|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
-|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
+|Bob Yantosca (Harvard)
-|Science
+|Model performance
 |
+*Ongoing (will be done as time allows)
 |-valign="top"
-|C2H4 and C2H2 chemistry
+|Retire all BPCH diagnostics
-|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
+|Bob Yantosca (Harvard)
-|Science
+|Diagnostics
 |
+*Can be done following the [https://github.com/geoschem/geos-chem/pull/1569 TOMAS update for GCHP]
 |-valign="top"
-|Diagnostic to archive XCO2, XCO, and XCH4
+|Assess memory leak in GCHP
-|Dylan Jones (Toronto)
+|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].  Need to assess if any memory leaks still remain.
 |-valign="top"
-|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
+|Hybrid MPI-OpenMP in GCHP
-|Kazu Miyazaki (JPL)
+|Seb Eastham (MIT)<br>Killian Murphy (York)
-|Science
+|Model performance
 |
 |-valign="top"
-|Evaluate the impact on the tropsophere of using the family approach for transport in the stratosphere
+|Improve run directory templating and creation with init_rd.sh and shared directories
-|Christoph Keller (NASA/GMAO)
+|Jourdan He (WashU)
-|Science
+|Run directories
 |
-*Important when [[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|extending UCX into the mesosphere]]
 |-valign="top"
-|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
-|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
+|GCST?
-|Science
+|Documentation
 |
+|}
+== 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"
-|Examine differences in the lightning NOx schemes in GEOS-Chem and GMI
+|Snow / Icy Bromine
-|Christoph Keller (NASA/GMAO)<br>Lee Murray (Rochester)
+|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Heterogeneous sulfate production
+|Monoterpene oxidation scheme
-|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+|Jessica Haskins (MIT)
-|Science
+|Chemistry
 |
 |-valign="top"
-|BrC aging
+|Fire related VOCs including furans
-|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
+|Lu Hu (UMT)<br>Lixu Jin (UMT)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Update of US emissions to NEI16
+|Extension of UCX into the mesosphere
-|Barron Henderson (EPA)
+|Seb Eastham (MIT)<br>Eric Fleming (NASA)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Updated surface ocean dissolved Hg0 from MITgcm
+|Methane flux ingestion
-|Yanxu Zhang (Nanjing)
+|Eloise Marais (UCL)
-|Science
+|Chemistry
 |
 |-valign="top"
-|One-Way Coupling w/ GISS ModelE3
+|Dust non-sphericity impacts on surface chem and optical properties
-|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+|Inderjeet Singh (WashU)
-|Structural
+|Aerosols
 |
 |-valign="top"
-|Shared Socioeconomic Pathways Emission Inventories
+|Size-resolved stratospheric aerosol
-|Hong Liao (NUIST)
+|Seb Eastham (MIT)
-|Science
+|Aerosols
 |
-|}
+|-valign="top"
+|Extend aerosol settling
+|Eloise Marais (UCL)
+|Aerosols
+|
---[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+|-valign="top"
+|Stratospheric aerosol APM
+|Fangqun Yu (SUNY)
+|Aerosols
+|
-=== Over the horizon (6-12 months) ===
+|-valign="top"
+|Plume-in-grid model
+|Hongwei Sun (Harvard)
+|Chemistry
+|
-{| border=1 cellspacing=0 cellpadding=5
+|-valign="top"
-|- bgcolor="#cccccc"
+|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
-!width="500px"|Item
+|Lee Murray (Rochester)
-!width="200px"|Author(s)
+|Emissions
-!width="100px"|Type
+|
-!width="300px"|Notes
 |-valign="top"
-|Update OCS simulation in the standard code
+|Seb aircraft emissions beyond recent 2019 update
-|Kevin Bowman (JPL)
+|Seb Eastham (MIT)
-|Science
+|Emissions
 |
 |-valign="top"
-|Examine what are the differences in the PSC implementation in GEOS-Chem and GMI and assess the implications of these differences for startospheric ozone
+|FRP-based fire emsisions for eastern US at 0.2	deg
-|Susan Strahan (Goddard)<br>Sebastian Eastham (MIT)
+|Charlie Fite (FSU)
-|Science
+|Emissions
 |
 |-valign="top"
-|Rediagnosis of RAS convection in GEOS-Chem
+|Hg iodine chemistry
-|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
+|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
-|Science
+|Hg simulation
 |
 |-valign="top"
-|New schedule for tracer transport benchmarks (FP change, scavenging change, or major release)
+|Hg simulation in GCHP
-|Andrea Molod (NASA/GMAO)
+|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
-|Science
+|Hg simulation
 |
 |-valign="top"
-|Methylethylketone chemistry
+|Update Hg ocean and soil boundary conditions for consistency with new chemistry
-|Jared Brewer (CSU)
+|Yanxu Zhang (Nanjing U.)
-|Science
+|Hg simulation
 |
 |-valign="top"
-|Add sulfate dependence to SOA yield from isoprene in simple SOA
+|Dry deposition diagnostics by land cover
-|Elo&iuml;se Marais (Leicester)
+|Holly Nowell (FSU)
-|Science
+|Diagnostics
 |
 |-valign="top"
-|Trace metal simulation
+|Dry deposition process diagnostics
-|Junwei Xu (Dalhousie)
+|Holly Nowell (FSU)
-|Science
+|Diagnostics
 |
 |-valign="top"
-|Hg gas-phase photo-reduction
+|Isotope simulation for CO and CH4 in GCHP
-|Colin Thackray (Harvard)
+|Lee Murray (Rochester)
-|Science
+|Carbon simulation
 |
 |-valign="top"
-|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
+|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
-|Amos Tai (CUHK)
+|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
-|Science
+|Emissions<br>CH4 simulation
 |
 |-valign="top"
-|Canopy Physics Model
+|Modularization of aerosols code for interface with GOCART in GEOS
-|Sam Silva (MIT)
+|Christoph Keller (GMAO)
 |Structural
 |
 |-valign="top"
-|Landcover/Fire Emissions Offline LPJlmfire
+|Improve load balancing in GCHP
-|Loretta Mickley (Harvard)
+|Seb Eastham (MIT)
-|Science
+|Model performance
+|
+|-valign="top"
+|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
+|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
+|Transport
+|
+|-valign="top"
+|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
+|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
+|Transport
+|
+|-valign="top"
+|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
+|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
+|Transport
 |
 |}
---[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+== Longer term (12-24 months)==
-=== Longer term (12-24 months)===
+Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.
 {| border=1 cellspacing=0 cellpadding=5
 |- bgcolor="#cccccc"
-!width="500px"|Item
+!width="200px"|Feature
-!width="200px"|Author(s)
+!width="200px"|Contributor(s)
-!width="100px"|Type
+!width="100px"|Model scope
-!width="300px"|Notes
+!width="420px"|Notes and References
 |-valign="top"
-|Implement isotope simulation for CO and CH4 in GCHP
+|Updates to Aromatic chemistry
-|Lee Murray (Rochester)
+|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Migrate LETFK DA scheme to GCHP
+|Nitrate photolysis
-|Kazu Miyazaki (JPL)
+|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Super fast chemistry scheme
+|In aerosol chemistry Halogens
-|Benjamin Brown-Steiner (AER)<br>Makoto Kelp (Harvard)
+|Mat Evans (York)<br>Hansen Cao (CU Boulder)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Add non-volatile cations to ISORROPIA
+|Benchmark box model of GC Chemistry
-|Becky Alexander (UW)
+|Katie Travis (NASA)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Update Europe emissions to EMEP 2016
+|Alkyl nitrates Alk7, PHAN
-|Eloise Marais (Leicester)
+|Katie Travis (NASA)
-|Science
+|Chemistry
 |
 |-valign="top"
-|MEGAN3
+|Add stratospheric ozone species to full-chemistry simulations
-|Sam Silva (MIT)<br>Jen Kaiser (GIT)<br>Yuxuan Wang (UH)
+|Lee Murray (Rochester)
-|Science
+|Chemistry
 |
 |-valign="top"
-|DMS oxidation scheme updating
+|Perchlorate chemistry
-|Becky Alexander (UW)<br>Qianjie Chen (UW)
+|Yuk Chun Chan (UWAB)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Streamlining of specialty simulations through HEMCO and KPP
+|Explicit heterogeneous sulfate chemistry
-|GCST<br>Chris Holmes (FSU)<br>Colin Thackray (Harvard) for Hg<br>Peter Ivatt (York) for PAH<br>Beata Bukosa (Wollongong) for joint CO-CO2-CH4
+|Katie Travis (NASA)<br>Becky Alexander (UT)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Hg in WRF-GC
+|HOx and ozone "emissions" from lightning as option in model to play with
-|Yanxu Zhang (Nanjing)
+|Jingqiu (Alaska)<br>Lee Murray (Rochester)
-|Science
+|Emissions
 |
 |-valign="top"
-|Hg with blowing snow
+|Sea salt aerosol from sea ice leads
-|Yanxu Xhang (Nanjing)
+|Hannah Horowitz (U. Illinois)
-|Science
+|Emissions
 |
 |-valign="top"
-|Updated treatment of Hg in ocean
+|Drought-stress algorithm
-|Chris Holmes (FSU)
+|Wei Li (U. Houston)
-|Science
+|
 |
 |-valign="top"
-|GTMM updates
+|Biomass burning injection height profiles
-|Ben Geyman (Harvard)
+|Inderjeet Singh (WashU)
-|Science
+|Emissions
 |
 |-valign="top"
-|Complex / multicomplex variables
+|OCIM integration
-|Shannon Capps (Drexel)
+|Chris Holmes (FSU)<br>Lee Murray (Rochester)
-|Structural
+|
 |
 |-valign="top"
-|Archived CMIP6 Met Products for GEOS-Chem Input
+|Updating landcover products in GEOS-Chem
-|Lee Murray (Rochester)
+|Chris Holmes (FSU)<br>Jeff Geddes (BU)
-|Science
+|Input data
 |
-|}
+|-valign="top"
+|Dry deposition physical improvement
+|Chris Holmes (FSU)
+|Dry deposition
+|
---[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+|-valign="top"
+|TOMAS WRF-GC in regional Thailand simulation
+|Win Trivitayanurak (Chulalongkorn U)
+|Aerosols
+|
-----------------
+|}
-'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''