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

Revision as of 20:39, 6 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
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"

Revision as of 20:39, 6 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 [http://acmg.seas.harvard.edu/geos/geos_working_groups.html Working Groups] and the [http://acmg.seas.harvard.edu/geos/geos_steering_cmte.html Steering Committee]. For history of past releases see the [[GEOS-Chem_versions|GEOS-Chem Versions wiki page]].
-== Release schedule ==
-Please see the [http://wiki.seas.harvard.edu/geos-chem/images/e/e1/GEOS-Chem_Release_Proposal.pdf GEOS-Chem Release Proposal] outlining the procedure and schedule for releasing GEOS-Chem versions.
 == Merged and awaiting release ==
@@ Line 13: / Line 7: @@
 {| border=1 cellspacing=0 cellpadding=5
 |-bgcolor="#CCCCCC"
-!width="200px"|Patch version in development
+!width="300px"|Mergeable at any time
-!width="200px"|Minor version in development
+!width="200px"|Version in development
 |-valign="top"
-|align="center"| -
+|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
-|align="center"|'''[[GEOS-Chem 13.4.0]]'''
+|align="center"|'''[[GEOS-Chem 14.4.0]]'''
 |}
@@ Line 24: / Line 18: @@
 == 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.
+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
@@ Line 35: / Line 29: @@
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/pull/990 Change State_Chm%Species from 4D to vector of 3D arrays]
+|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
-|Lizzie Lundgren (GCST)
+|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
-|Structural
+|Emissions
 |Medium
 |
-*Done, slated for 14.0.0
+*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
+*Incorporates new met field TSOIL1
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/discussions/1111 Convert input.geos to YAML and rename]
+|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
-|Bob Yantosca (GCST)
+|Lizzie Lundgren (Harvard)
-|Run directories
+|GC-Classic
 |Medium
 |
-* See [https://github.com/geoschem/geos-chem/discussions/1111 geoschem/geos-chem #1111]
+*[https://github.com/geoschem/HEMCO/issues/18 hemco issue #18]
-* In testing, slated for 14.0.0
 |-valign="top"
-|[https://github.com/geoschem/GCHP/pull/214 Upgrade GMAO libraries in GCHP]
+|Capture all trop and PBL height changes in budget diagnostics
-|Liam Bindle (GCST) <br> Lizzie Lundgren (GCST)
+|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
-|Structural
+|Diagnostics
-|Easy
+|Medium
 |
-*Done, slated for 14.0.0
+*[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://github.com/geoschem/geos-chem/pull/1198 Fixes to remove differences when restarting the model]
+|ALK4 & R4N2 chemistry
-|Lizzie Lundgren (GCST)
+|Jared Brewer (UMN)
-|Bug fixes
+|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"
+|Mass flux regridding fix in MAPL
+|Tom Clune (GMAO)<br>Seb Eastham (MIT)
+|GCHP input regridding
 |Medium
 |
-*Done for GCHP, slated for 14.0.0
+|
-*More fixes for GC-Classic will be a later update
+*[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/issues/331 Provide climatologies for open fire emissions]
+|New version of CEDS at 0.1 deg
-|Melissa Sulprizio (GCST)
+|Dandan Zhang (WashU)
 |Emissions
-|Easy
+|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/655 Climatologies for lightning NOx]
+|KORUS-AQ emissions for East Asia (as an option)
-|Lee Murray (Rochester)<br>Melissa Sulprizio (GCST)
+|Katie Travis (NASA)
 |Emissions
-|Easy
+|Simple
 |
 |-valign="top"
-|[[Grid-independent_emissions|Updated offline biogenic emissions]]
+|Geologic emission of ethane and propane
-|Hongjian Weng (PKU)
+|Matthew Rowlinson and Mat Evans(York)
 |Emissions
-|Easy
+|Delivered<br>Jan 2023
 |
-*Delivered to GCST (Dec 2021)
+*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"
-|[[Grid-independent_emissions|Updated offline soil NOx emissions]]
+|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
-|Hongjian Weng (PKU)
+|Joey Lam(CUHK)<br>Amos Tai (CUHK)
+|Science
+|Delivered<br>Feb 2021
+|
+*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
+|-valign="top"
+|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
+|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
 |Emissions
-|Easy
+|Delivered<br>Jul 2021
 |
-*Delivered to GCST (Dec 2021)
+*Data involves many files- need to think about temporal frequency
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/discussions/1022 Add new species concentration diagnostic in units of molec/cm3]
+|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
-|GCST
+|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
-|Diagnostics
+|Chemistry
-|Easy
+|Delivered<br>June 2023
 |
-*See [https://github.com/geoschem/geos-chem/issues/1022 geoschem/geos-chem #1022]
+*[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/770 Output satellite diagnostics as NetCDF]
+|DMS Chemistry
-|Eloise Marais (UCL)
+|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
-|Diagnostics
+|Chemistry
-|Easy
+|Not delivered
 |
-*See [https://github.com/geoschem/geos-chem/pull/1134 geoschem/geos-chem #1134]
 |-valign="top"
-|Upgrade Fast-JX to Cloud-J
+|Organic acids (RCOOH)
-|Lizzie Lundgren (GCST)
+|Katie Travis (NASA)
-|Structural
+|Chemistry
-|Difficult
+|Not delivered
+|
+|-valign="top"
+|Improve carbon & nitrogen conservation in reactions
+|Kelvin Bates (Harvard)
+|Chemistry
+|Not delivered
+|
+|-valign="top"
+|Blowing snow sea salt in TOMAS
+|Betty Croft (Dalhousie)
+|Aerosols
+|Not delivered
+|
+|-valign="top"
+|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
+|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
+|Hg simulation
+|Not delivered
+|
+|-valign="top"
+|WRF-GC Hg simulation
+|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
+|Hg simulation<br>WRF-GC
+|Not delivered
+|
+|-valign="top"
+|Updated HgII gas-partical partitioning
+|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
+|Hg simulation
+|Not delivered
+|
+*Should be option, not default
+|-valign="top"
+|Dry deposition to F90 (readability)
+|Chris Holmes (FSU)
+|Dry deposition
+|Not delivered
 |
-* [https://github.com/geoschem/cloud-j geoschem/cloud-j]
-*Ongoing
 |}
-== Feature integration in the queue ==
+== Almost there (< 6 months) ==
-Features listed in this table have been delivered to the GEOS-Chem Support Team and are prioritized to be integrated into GEOS-Chem in the near future.
+Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
-{| border=1 cellspacing=0 cellpadding=5
+{|border=1 cellspacing=0 cellpadding=5
-|-bgcolor="#CCCCCC"
+|- bgcolor="#cccccc"
 !width="200px"|Feature
 !width="200px"|Contributor(s)
 !width="100px"|Model scope
-!width="100px"|Ease of implementation
+!width="420px"|Notes and References
-!width="300px"|Notes and References
+|-valign="top"
+|PPN+hv, PPN+OH
+|Robert Ryan (UCL)
+|Chemistry
+|
 |-valign="top"
-|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option)
+|MBO
-|Mike Long (Harvard) <br> Haipeng Lin (Harvard) <br> Bob Yantosca (GCST) <br> Lu Shen (PKU)
+|Michael Vermeuel (UMN)
 |Chemistry
-|Difficult
 |
-*In testing, publication expected in mid-to-late 2022
-*Previous literature: [https://gmd.copernicus.org/articles/15/1677/2022/ Shen et al., 2022], [https://gmd.copernicus.org/articles/13/2475/2020/ Shen et al., 2020]
 |-valign="top"
-|[https://gmd.copernicus.org/articles/13/2569/2020/ MEGAN3]
+|Initial conditions for CH4 correcting background and stratospheric biases
-|Sam Silva (MIT)
+|Todd Mooring (Harvard)
-|Emissions
+|Methane simulation
-|Medium
 |
-*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
-*Sam Silva and GCST will work on updating this to a more recent GEOS-Chem version in the near future
 |-valign="top"
-|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
+|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
-|Sam Silva (MIT)
+|Bob Yantosca (Harvard)
-|Emissions &<br>Science
+|Aerosols<br>Structural
-|Medium
 |
-*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
+*Ongoing
-*Sam Silva and GCST will work on updating this to a more recent GEOS-Chem version in the near future
 |-valign="top"
-|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation]
+|Re-binning of off-line sea salt and dust for use in TOMAS
-|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)<br>Mike Long (GCST/Contractor)
+|Betty Croft (Dalhousie)
-|Specialty simulation
+|Aerosols
-|Medium
 |
-* [https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
-*Ideally implemented as a chemical mechanism in KPP
-|}
+|-valign="top"
+|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
+|Betty Croft (Dalhousie)
+|Aerosols
+|
-== Feature integration not yet prioritized ==
+|-valign="top"
+|ML algorithms for bulk aerosols
+|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
+|Aerosols
+|
-Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integrating into the model.
+|-valign="top"
+|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
+|Shixian Zhai (Harvard)
+|Aerosols
+|
-{| border=1 cellspacing=0 cellpadding=5
+|-valign="top"
-|-bgcolor="#CCCCCC"
+|Updates to Hodzic SOA scheme
-!width="200px"|Feature
+|Jared Brewer (Harvard)
-!width="200px"|Contributor(s)
+|Aerosols
-!width="100px"|Model scope
+|
-!width="100px"|Ease of implementation
-!width="300px"|Notes and References
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]
+|Automated reduction in isoprene scheme
-|Seb Eastham (MIT)
+|Dan Westervelt (Lamont-Doherty)
-|Science
+|Aerosols
-|Medium
 |
-*[https://github.com/geoschem/geos-chem/issues/1094 geoschem/geos-chem #1094]
 |-valign="top"
-|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
+|Brown carbon chemsitry
-|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
+|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
-|Chemistry
+|Aerosols
-|Medium
 |
-*Delivered to GCST (Jun 2020)
 |-valign="top"
-|[https://gmd.copernicus.org/articles/13/1137/2020/ GC-YIBs biosphere-atmospheric chemistry coupled model]
+|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
-|Xu Yue (NUIST)
+|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
-|Science
+|Convection
-|Easy
 |
-* [https://github.com/geoschem/geos-chem/issues/425 geoschem/geos-chem #425]
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
+|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
-|Joey Lam(CUHK)<br>Amos Tai (CUHK)
+|Jintai Lin (PKU)
-|Science
+|Emissions
-|Easy
 |
-*Delivered to GCST (Feb 2021)
+*Horizontal resolution: 5km, temporal resolution: JJA mean
-* [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
+*monthly data will be available at a later stage; please contact us
 |-valign="top"
-|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+|Updated biomass burning emission factors and species
-|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
+|Tess Carter (MIT)
-|Chemistry
+|Emissions
-|Easy
 |
 |-valign="top"
-|Landcover/Fire Emissions Offline LPJlmfire
+|Updated offline sea salt emissions
-|Loretta Mickley (Harvard)<br>Yang Li (Harvard)
+|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
 |Emissions
-|Easy
 |
-*Data files delivered to GCST (July 2021)
+|-valign="top"
+|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
+|Sam Silva (MIT)
+|Emissions &<br>Science
+|
+*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
+*Needs to be updated to a more recent GEOS-Chem version
+|-valign="top"
+|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
+|Bob Yantosca (Harvard)
+|Model performance
+|
+*Ongoing (will be done as time allows)
+|-valign="top"
+|Assess memory leak in GCHP
+|Killian Murphy (York)
+|Model performance
+|
+*NOTE: Most memory leaks in GCHP have been fixed by [https://github.com/geoschem/geos-chem/pull/1353 geoschem/geos-chem PR #1353]. Will wait until MAPL3 to further assess.
+|-valign="top"
+|Hybrid MPI-OpenMP in GCHP
+|Seb Eastham (MIT)<br>Killian Murphy (York)
+|Model performance
+|
+|-valign="top"
+|Improve pressure handling in GCHP advection
+|Seb Eastham (MIT)<br>Yuanjian Zhang (WashU)
+|GCHP
+|
+|-valign="top"
+|Use ExtData2G as default GCHP input module
+|Lizzie Lundgren (Harvard)
+|GCHP
+|Will replace ExtData.rc with yaml file
 |}
-== Almost there (< 6 months) ==
+== Over the horizon (6-12 months) ==
-Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
+Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.
-{|border=1 cellspacing=0 cellpadding=5
+{| border=1 cellspacing=0 cellpadding=5
 |- bgcolor="#cccccc"
 !width="200px"|Feature
@@ Line 250: / Line 369: @@
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/559 Implement H2 chemistry in UCX]
+|Snow / Icy Bromine
-|Chris Holmes (FSU)
+|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
 |Chemistry
 |
-*Identified as a priority for GC 13, but not yet delivered
 |-valign="top"
-|[https://iopscience.iop.org/article/10.1088/1748-9326/ac16a3 New soil NOx parameterization]
+|Monoterpene oxidation scheme
-|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
+|Jessica Haskins (MIT)
-|Emissions
+|Chemistry
 |
 |-valign="top"
-|[[Grid-independent_emissions|Updated offline sea salt emissions]]
+|Fire related VOCs including furans
-|Hongjian Weng (PKU)
+|Lu Hu (UMT)<br>Lixu Jin (UMT)
-|Emissions
+|Chemistry
 |
-*Identified as a priority for GC 13, but not yet delivered
 |-valign="top"
-|Provide recommended rather than hard-coded scaling factors for online emissions
+|Extension of UCX into the mesosphere
-|GCST
+|Seb Eastham (MIT)<br>Eric Fleming (NASA)
-|Emissions
+|Chemistry
 |
-*Identified as a priority for GC 13, but not yet developed
 |-valign="top"
-|Add stratospheric ozone species to full-chemistry simulations
+|Methane flux ingestion
-|Lee Murray (Rochester)
+|Eloise Marais (UCL)
 |Chemistry
 |
 |-valign="top"
-|Diagnostic to archive XCO2, XCO, and XCH4
+|Dust non-sphericity impacts on surface chem and optical properties
-|Dylan Jones (Toronto)
+|Inderjeet Singh (WashU)
-|Diagnostic
+|Aerosols
 |
 |-valign="top"
-|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
+|Size-resolved stratospheric aerosol
-|Kazu Miyazaki (JPL)
+|Seb Eastham (MIT)
-|Input data
+|Aerosols
 |
 |-valign="top"
-|BrC aging
+|Extend aerosol settling
-|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
+|Eloise Marais (UCL)
+|Aerosols
+|
+|-valign="top"
+|Stratospheric aerosol APM
+|Fangqun Yu (SUNY)
+|Aerosols
+|
+|-valign="top"
+|Plume-in-grid model
+|Hongwei Sun (Harvard)
 |Chemistry
 |
 |-valign="top"
-|Shared Socioeconomic Pathways Emission Inventories
+|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
-|Hong Liao (NUIST)
+|Lee Murray (Rochester)
 |Emissions
 |
 |-valign="top"
-|Rediagnosis of RAS convection in GEOS-Chem
+|Seb aircraft emissions beyond recent 2019 update
-|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
+|Seb Eastham (MIT)
-|Convection
+|Emissions
 |
-*Work is finished and a manuscript is in preparation.
 |-valign="top"
-|HTAPv3 emissions (0.1 deg, 2002-2018)
+|FRP-based fire emsisions for eastern US at 0.2	deg
-|Emissions & Deposition WG
+|Charlie Fite (FSU)
 |Emissions
 |
 |-valign="top"
-|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
+|Hg iodine chemistry
-|GCST
+|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
-|Chemistry
+|Hg simulation
 |
 |-valign="top"
-|Updated parameterization of aerosol size distribution for bulk aerosol simulations
+|Hg simulation in GCHP
-|Haihui Zhu (WashU)<br>Shixian Zhai (Harvard)
+|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
-|Aerosols
+|Hg simulation
 |
-|}
+|-valign="top"
+|Update Hg ocean and soil boundary conditions for consistency with new chemistry
+|Yanxu Zhang (Nanjing U.)
+|Hg simulation
+|
-== Over the horizon (6-12 months) ==
+|-valign="top"
+|Dry deposition diagnostics by land cover
+|Holly Nowell (FSU)
+|Diagnostics
+|
-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.
+|-valign="top"
+|Dry deposition process diagnostics
+|Holly Nowell (FSU)
+|Diagnostics
+|
-{| border=1 cellspacing=0 cellpadding=5
+|-valign="top"
-|- bgcolor="#cccccc"
+|Isotope simulation for CO and CH4 in GCHP
-!width="200px"|Feature
+|Lee Murray (Rochester)
-!width="200px"|Contributor(s)
+|Carbon simulation
-!width="100px"|Model scope
+|
-!width="420px"|Notes and References
 |-valign="top"
-|Methylethylketone chemistry
+|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
-|Jared Brewer (CSU)
+|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
-|Chemistry
+|Emissions<br>CH4 simulation
 |
 |-valign="top"
-|Add sulfate dependence to SOA yield from isoprene in simple SOA
+|Modularization of aerosols code for interface with GOCART in GEOS
-|Eloise Marais (UCL)
+|Christoph Keller (GMAO)
-|Chemistry
+|Structural
 |
 |-valign="top"
-|GTMM updates
+|Improve load balancing in GCHP
-|Ben Geyman (Harvard)
+|Seb Eastham (MIT)
-|Hg simulation
+|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"
-|[https://github.com/geoschem/GCHP/issues/19 Integrating GMAO's tracer gridded component in GCHP]
+|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
-|Christoph Keller (NASA GMAO)
+|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
-|Transport Tracer simulation
+|Transport
 |
 |-valign="top"
-|Streamlining of specialty simulations through HEMCO and KPP
+|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
+|
+|-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
-|Chemistry, Specialty simulations
+|Benchmarking
 |
@@ Line 380: / Line 536: @@
 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"
@@ Line 388: / Line 545: @@
 |-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)
-|Specialty simulation
+|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)
-|Structural
+|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)
 |Chemistry
 |
-*SF mechanism has been implemented and benchmarked in GEOS-Chem 12.0.0. This mechanism is of interest for those groups wanting fast global simulation of oxidation fields in GEOS-Chem simulations focused on aerosol microphysics.
-*The machine-learned chemical solver is still probably 12 months away from online implementation into GEOS-Chem.
 |-valign="top"
-|Add non-volatile cations to ISORROPIA
+|Benchmark box model of GC Chemistry
-|Becky Alexander (UW)
+|Katie Travis (NASA)
-|Aerosols
+|Chemistry
 |
 |-valign="top"
-|DMS oxidation scheme updating
+|Alkyl nitrates Alk7, PHAN
-|Becky Alexander (UW)<br>Qianjie Chen (UW)
+|Katie Travis (NASA)
 |Chemistry
 |
-*Delayed - implemented pre-KPP
-*Currently bring implemented in KPP by UC Riverside group
 |-valign="top"
-|Heterogeneous sulfate production
+|Add stratospheric ozone species to full-chemistry simulations
-|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+|Lee Murray (Rochester)
 |Chemistry
 |
-*Delayed - implemented pre-KPP
 |-valign="top"
-|Hg in WRF-GC
+|Perchlorate chemistry
-|Yanxu Zhang (Nanjing)
+|Yuk Chun Chan (UWAB)
-|Hg simulation
+|Chemistry
 |
 |-valign="top"
-|Hg with blowing snow
+|Explicit heterogeneous sulfate chemistry
-|Yanxu Xhang (Nanjing)
+|Katie Travis (NASA)<br>Becky Alexander (UT)
-|Emissions, Hg simulation
+|Chemistry
 |
 |-valign="top"
-|Hg isotopes
+|HOx and ozone "emissions" from lightning as option in model to play with
-|Xiaotian Xu, Yanxu Xhang (Nanjing)
+|Jingqiu (Alaska)<br>Lee Murray (Rochester)
-|Hg simulation
+|Emissions
 |
 |-valign="top"
-|Hg in CESM CAM-CHEM
+|Sea salt aerosol from sea ice leads
-|Peng Zhang, Yanxu Xhang (Nanjing)
+|Hannah Horowitz (U. Illinois)
-|Hg simulation
+|Emissions
 |
 |-valign="top"
-|Complex / multicomplex variables
+|Drought-stress algorithm
-|Shannon Capps (Drexel)
+|Wei Li (U. Houston)
-|Structural
+|
 |
-|}
+|-valign="top"
+|Biomass burning injection height profiles
+|Inderjeet Singh (WashU)
+|Emissions
+|
-----------------
+|-valign="top"
+|OCIM integration
+|Chris Holmes (FSU)<br>Lee Murray (Rochester)
+|
+|
-'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
+|-valign="top"
+|Updating landcover products in GEOS-Chem
+|Chris Holmes (FSU)<br>Jeff Geddes (BU)
+|Input data
+|
+|-valign="top"
+|Dry deposition physical improvement
+|Chris Holmes (FSU)
+|Dry deposition
+|
+|-valign="top"
+|TOMAS WRF-GC in regional Thailand simulation
+|Win Trivitayanurak (Chulalongkorn U)
+|Aerosols
+|
+|}