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

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	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
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)
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 20:39, 2 May 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/1288 New soil NOx parameterization]
-|GCST
+|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
-|Science
+|Emissions
+|Medium
 |
+*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
+*Incorporates new met field TSOIL1
 |-valign="top"
-!colspan="4" bgcolor="#CCFFFF"|Updates that will NOT affect full-chemistry simulations
+|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
+|Lizzie Lundgren (Harvard)
+|GC-Classic
+|Medium
+|
+*[https://github.com/geoschem/HEMCO/issues/18 hemco issue #18]
 |-valign="top"
-|ODIAC fossil fuel emissions for CO2 simulations
+|Capture all trop and PBL height changes in budget diagnostics
-|Jenny Fisher (UOW)<br>Yi Cao (UOW)
+|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
-|Science
+|Diagnostics
+|Medium
 |
-*Delivered to GCST (Jan 2020)
+*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
-|-valign="top
+|}
-|Updated Streets Hg emissions
-|Colin Thackray (Harvard)
+== Prioritized and in the queue ==
-|Science
+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"
+|ALK4 & R4N2 chemistry
+|Jared Brewer (UMN)
+|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
+|-valign="top"
-|Updated EDGAR 4.3 Hg emissions
+|Mass flux regridding fix in MAPL
-|Amanda Giang (UBC)
+|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://essd.copernicus.org/articles/12/563/2020/essd-12-563-2020.pdf Global Inventory of Methane Emissions from Fuel Exploitation]
+|New version of CEDS at 0.1 deg
-|Tia Scarpelli (Harvard)
+|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.'''
+|}
+== 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"
-|Retire the GNU Make build system in both GEOS-Chem Classic and GCHP and replace with CMake
+|KORUS-AQ emissions for East Asia (as an option)
-|Liam Bindle (WashU)<br>GCST
+|Katie Travis (NASA)
-|Structural
+|Emissions
+|Simple
 |
 |-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]
+|Geologic emission of ethane and propane
-|Melissa Sulprizio (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"
-|Use GEOS-Chem and HEMCO as separate git submodules inside a new [https://github.com/geoschem/geos-chem-classic GEOS-Chem Classic wrapper repository]
+|[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)
-|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"
-!colspan="4" bgcolor="#CCFFFF"|Features only affecting GCHP:
+|Organic acids (RCOOH)
+|Katie Travis (NASA)
+|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
+|Improve carbon & nitrogen conservation in reactions
-|Lizzie Lundgren (GCST)
+|Kelvin Bates (Harvard)
-|Structural
+|Chemistry
+|Not delivered
 |
 |-valign="top"
-|Separate HEMCO from GEOS-Chem to use as an ESMF gridded component in GCHP
+|Blowing snow sea salt in TOMAS
-|Lizzie Lundgren (GCST)
+|Betty Croft (Dalhousie)
-|Structural
+|Aerosols
+|Not delivered
 |
 |-valign="top"
-|Enable a stretched grid capability in GCHP to run global simulations at regional high resolution
+|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
-|Liam Bindle (WashU)
+|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
-|Structural
+|Hg simulation
+|Not delivered
 |
 |-valign="top"
-|Update MAPL (v2.2.7) and GMAO library dependencies
+|WRF-GC Hg simulation
-|Lizzie Lundgren (GCST)
+|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
-|Structural
+|Hg simulation<br>WRF-GC
+|Not delivered
 |
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/pull/348 Enable GCHP to be compiled with RRTMG]
+|Updated HgII gas-partical partitioning
-|Sebastian Eastham (MIT)
+|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
-|Science
+|Hg simulation
+|Not delivered
 |
+*Should be option, not default
+|-valign="top"
+|Dry deposition to F90 (readability)
+|Chris Holmes (FSU)
+|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://zenodo.org/record/3754964#.XtEVOZ5KjOQ CEDS_GBD-MAPS emission inventory (1970 - 2017)]
+|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
-|Erin McDuffie (Dalhousie)
+|Shixian Zhai (Harvard)
-|Science
+|Aerosols
 |
-|-
+|-valign="top"
-|[https://github.com/geoschem/geos-chem/pull/356 Blowing snow emissions of sea salt and bromine]
+|Updates to Hodzic SOA scheme
-|Lyatt Jaegle (UW)
+|Jared Brewer (Harvard)
-|Science
+|Aerosols
 |
-*Delivered to GCST (Jun 2020)
 |-valign="top"
-|Offline CLM Harmonization
+|Automated reduction in isoprene scheme
-|Anthony Wong (BU)<br>Jeff Geddes (BU)
+|Dan Westervelt (Lamont-Doherty)
-|Science
+|Aerosols
 |
-|-
+|-valign="top"
-!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+|Brown carbon chemsitry
+|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
+|Aerosols
+|
 |-valign="top"
-|Arctic marine SOA
+|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
-|Betty Croft (Dalhousie)
+|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
-|Science
+|Convection
 |
-*Details on wiki only, not in standard code
-|}
+|-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
---[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+|-valign="top"
+|Updated biomass burning emission factors and species
+|Tess Carter (MIT)
+|Emissions
+|
-=== Almost there (< 6 months) ===
+|-valign="top"
+|Updated offline sea salt emissions
+|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
+|Emissions
+|
-{| border=1 cellspacing=0 cellpadding=5
+|-valign="top"
-|- bgcolor="#cccccc"
+|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
-!width="500px"|Item
+|Sam Silva (MIT)
-!width="200px"|Author(s)
+|Emissions &<br>Science
-!width="100px"|Type
+|
-!width="300px"|Notes
+*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
+*Needs to be updated to a more recent GEOS-Chem version
 |-valign="top"
-|Provide climatologies for lightning NOx, volcano, and open fire emissions
+|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
-|GCST
+|Bob Yantosca (Harvard)
-|Science
+|Model performance
 |
+*Ongoing (will be done as time allows)
 |-valign="top"
-|[https://www.geosci-model-dev.net/12/111/2019/gmd-12-111-2019.pdf Aromatic VOC chemistry]
+|Assess memory leak in GCHP
-|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
+|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"
-|C2H4 and C2H2 chemistry
+|Hybrid MPI-OpenMP in GCHP
-|Kelvin Bates (Harvard)<br>Ke Li (Harvard)
+|Seb Eastham (MIT)<br>Killian Murphy (York)
-|Science
+|Model performance
 |
 |-valign="top"
-|Diagnostic to archive XCO2, XCO, and XCH4
+|Improve pressure handling in GCHP advection
-|Dylan Jones (Toronto)
+|Seb Eastham (MIT)<br>Yuanjian Zhang (WashU)
-|Science
+|GCHP
 |
 |-valign="top"
-|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
+|Use ExtData2G as default GCHP input module
-|Kazu Miyazaki (JPL)
+|Lizzie Lundgren (Harvard)
-|Science
+|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"
-|Evaluate the impact on the tropsophere of using the family approach for transport in the stratosphere
+|Monoterpene oxidation scheme
-|Christoph Keller (NASA/GMAO)
+|Jessica Haskins (MIT)
-|Science
+|Chemistry
 |
-*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]]
+|Fire related VOCs including furans
-|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
+|Lu Hu (UMT)<br>Lixu Jin (UMT)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Examine differences in the lightning NOx schemes in GEOS-Chem and GMI
+|Extension of UCX into the mesosphere
-|Christoph Keller (NASA/GMAO)<br>Lee Murray (Rochester)
+|Seb Eastham (MIT)<br>Eric Fleming (NASA)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Heterogeneous sulfate production
+|Methane flux ingestion
-|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+|Eloise Marais (UCL)
-|Science
+|Chemistry
 |
 |-valign="top"
-|BrC aging
+|Dust non-sphericity impacts on surface chem and optical properties
-|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
+|Inderjeet Singh (WashU)
-|Science
+|Aerosols
 |
 |-valign="top"
-|Update of US emissions to NEI16
+|Size-resolved stratospheric aerosol
-|Barron Henderson (EPA)
+|Seb Eastham (MIT)
-|Science
+|Aerosols
 |
 |-valign="top"
-|Updated surface ocean dissolved Hg0 from MITgcm
+|Extend aerosol settling
-|Yanxu Zhang (Nanjing)
+|Eloise Marais (UCL)
-|Science
+|Aerosols
 |
 |-valign="top"
-|One-Way Coupling w/ GISS ModelE3
+|Stratospheric aerosol APM
-|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+|Fangqun Yu (SUNY)
-|Structural
+|Aerosols
 |
 |-valign="top"
-|Shared Socioeconomic Pathways Emission Inventories
+|Plume-in-grid model
-|Hong Liao (NUIST)
+|Hongwei Sun (Harvard)
-|Science
+|Chemistry
 |
-|}
+|-valign="top"
+|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
+|Lee Murray (Rochester)
+|Emissions
+|
---[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+|-valign="top"
+|Seb aircraft emissions beyond recent 2019 update
+|Seb Eastham (MIT)
+|Emissions
+|
-=== Over the horizon (6-12 months) ===
+|-valign="top"
+|FRP-based fire emsisions for eastern US at 0.2	deg
+|Charlie Fite (FSU)
+|Emissions
+|
-{| border=1 cellspacing=0 cellpadding=5
+|-valign="top"
-|- bgcolor="#cccccc"
+|Hg iodine chemistry
-!width="500px"|Item
+|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
-!width="200px"|Author(s)
+|Hg simulation
-!width="100px"|Type
+|
-!width="300px"|Notes
 |-valign="top"
-|Update OCS simulation in the standard code
+|Hg simulation in GCHP
-|Kevin Bowman (JPL)
+|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
-|Science
+|Hg simulation
 |
 |-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
+|Update Hg ocean and soil boundary conditions for consistency with new chemistry
-|Susan Strahan (Goddard)<br>Sebastian Eastham (MIT)
+|Yanxu Zhang (Nanjing U.)
-|Science
+|Hg simulation
 |
 |-valign="top"
-|Rediagnosis of RAS convection in GEOS-Chem
+|Dry deposition diagnostics by land cover
-|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
+|Holly Nowell (FSU)
-|Science
+|Diagnostics
 |
 |-valign="top"
-|New schedule for tracer transport benchmarks (FP change, scavenging change, or major release)
+|Dry deposition process diagnostics
-|Andrea Molod (NASA/GMAO)
+|Holly Nowell (FSU)
-|Science
+|Diagnostics
 |
 |-valign="top"
-|Methylethylketone chemistry
+|Isotope simulation for CO and CH4 in GCHP
-|Jared Brewer (CSU)
+|Lee Murray (Rochester)
-|Science
+|Carbon simulation
 |
 |-valign="top"
-|Add sulfate dependence to SOA yield from isoprene in simple SOA
+|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
-|Elo&iuml;se Marais (Leicester)
+|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
-|Science
+|Emissions<br>CH4 simulation
 |
 |-valign="top"
-|Trace metal simulation
+|Modularization of aerosols code for interface with GOCART in GEOS
-|Junwei Xu (Dalhousie)
+|Christoph Keller (GMAO)
-|Science
+|Structural
 |
 |-valign="top"
-|Hg gas-phase photo-reduction
+|Improve load balancing in GCHP
-|Colin Thackray (Harvard)
+|Seb Eastham (MIT)
-|Science
+|Model performance
 |
 |-valign="top"
-|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
+|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
-|Amos Tai (CUHK)
+|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
-|Science
+|Transport
 |
 |-valign="top"
-|Canopy Physics Model
+|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
-|Sam Silva (MIT)
+|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
-|Structural
+|Transport
 |
 |-valign="top"
-|Landcover/Fire Emissions Offline LPJlmfire
+|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
-|Loretta Mickley (Harvard)
+|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
-|Science
+|Transport
+|
+|-valign="top"
+|MAPL version 3
+|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]]) 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]]'''''