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 [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"|'''[[GEOS-Chem 13.2.1]]'''
+|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
-|align="center"|'''[[GEOS-Chem 13.2.0]]'''
+|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]].
+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 32: / Line 26: @@
 !width="100px"|Model scope
 !width="100px"|Ease of implementation
-!width="300px"|Notes
+!width="300px"|Notes and References
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/547 Update US emissions to NEI2016] (as option)
+|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
-|Barron Henderson (EPA)<br>Lyssa Freese (MIT)
+|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
 |Emissions
-|Easy
+|Simple
 |
-*Files available at [ftp://newftp.epa.gov/Air/aqmg/global/NEI2016fh/ this ftp site]. Barron writes, "They have not yet been used in a publication, so I caution users to look for anything and report back."
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/pull/459 Updates to enable automated run directory creation]
+|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
-|Liam Bindle (GCST)<br>Melissa Sulprizio (GCST)
+|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
-|Run directory
+|Emissions
 |Medium
 |
+*[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/issues/666 Modularize FAST-JX]
+|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
-|Lizzie Lundgren (GCST)
+|Lizzie Lundgren (Harvard)
-|Structural
+|GC-Classic
-|Difficult
+|Medium
 |
-*Will allow other models to use FAST-JX without rest of GEOS-Chem
+*[https://github.com/geoschem/HEMCO/issues/18 hemco issue #18]
 |-valign="top"
-|Migrating sulfate chemistry into KPP
+|Capture all trop and PBL height changes in budget diagnostics
-|Mike Long (GCST)
+|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
-|Chemistry &<br>Structural
+|Diagnostics
-|Difficult
+|Medium
 |
-* Also includes Moch et al HMS chemistry
+*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
-* Also includes C2H4 and C2H2 chemistry
+|}
+== 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"
-|[http://acmg.seas.harvard.edu/publications/2020/moch_2020_hms_global.pdf HMS chemistry]
+|ALK4 & R4N2 chemistry
-|Jonathan Moch (Harvard)<br>Mike Long (GCST)
+|Jared Brewer (UMN)
 |Chemistry
-|Easy
+|TBD
+|Not delivered
 |
-*See [https://github.com/geoschem/geos-chem/pull/456 geoschem/geos-chem PR #456]
+*[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/560 C2H4 and C2H2 chemistry]
+|Mass flux regridding fix in MAPL
-|Kelvin Bates (Harvard)<br>Ke Li (Harvard)<br>Mike Long (GCST)
+|Tom Clune (GMAO)<br>Seb Eastham (MIT)
-|Chemistry
+|GCHP input regridding
-|Easy
+|Medium
+|
 |
-*Includes adding C2H4 and C2H2 as advected species with emissions
+*[https://github.com/geoschem/GCHP/issues/377 GCHP Issue #377]
-*See [https://github.com/geoschem/geos-chem/pull/813 geoschem/geos-chem PR #813]
+*'''Currently on hold, as the submitted update results in zero diff'''
 |-valign="top"
-|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2020JD033439 CH3O2 + OH reaction]
+|New version of CEDS at 0.1 deg
-|Kelvin Bates (Harvard)
+|Dandan Zhang (WashU)
-|Chemistry
+|Emissions
-|Easy
+|Simple
+|Delivered
 |
-*Reaction stoichiometry and rate constant in KPP
+*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
-*See [https://github.com/geoschem/geos-chem/pull/814 geoschem/geos-chem PR #814]
+*'''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"
-|Cleaning up heterogeneous chemistry reaction rate computations
+|KORUS-AQ emissions for East Asia (as an option)
-|Bob Yantosca (GCST)
+|Katie Travis (NASA)
-|Chemistry &<br>Structural
+|Emissions
-|Difficult
+|Simple
 |
-*See [https://github.com/geoschem/geos-chem/pull/817 geoschem/geos-chem PR #817]
 |-valign="top"
-|[https://github.com/geoschem/HEMCO/issues/92 Avoid double counting of acetone source from monoterpenes when using online MEGAN]
+|Geologic emission of ethane and propane
-|Dylan Millet (UMN)
+|Matthew Rowlinson and Mat Evans(York)
 |Emissions
-|Easy
+|Delivered<br>Jan 2023
 |
-*See [https://github.com/geoschem/HEMCO/pull/93 geoschem/HEMCO PR #93]
+*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"
-|[http://acmg.seas.harvard.edu/publications/2021/shah_est_2021.pdf Updated Hg chemistry in KPP]
+|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
-|Viral Shah (Harvard)<br>Colin Thackray (Harvard)<br>Mike Long (Harvard)
+|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
+|Delivered<br>Jul 2021
+|
+*Data involves many files- need to think about temporal frequency
+|-valign="top"
+|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
+|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
 |Chemistry
-|Medium
+|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://acp.copernicus.org/preprints/acp-2021-605/ Aromatic VOC chemistry]
+|DMS Chemistry
-|Kelvin Bates (Harvard)<br>Ke Li (Harvard)<br>Mike Long (Harvard)
+|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
 |Chemistry
-|Medium
+|Not delivered
 |
 |-valign="top"
-|[https://gmd.copernicus.org/articles/14/4249/2021/gmd-14-4249-2021.html Updated offline dust emissions from Meng et al. (2021)]
+|Organic acids (RCOOH)
-|Jun Meng (WUStL)<br>Yanshun Li (WUStL)
+|Katie Travis (NASA)
-|Emissions
+|Chemistry
-|Easy
+|Not delivered
 |
-*See [https://github.com/geoschem/geos-chem/pull/816 geoschem/geos-chem PR #816]
 |-valign="top"
-|GEOS updates
+|Improve carbon & nitrogen conservation in reactions
-|Christoph Keller (GMAO)<br>Lizzie Lundgren (GCST)
+|Kelvin Bates (Harvard)
-|GEOS
+|Chemistry
-|Medium (ongoing)
+|Not delivered
 |
 |-valign="top"
-|CESM-GC updates
+|Blowing snow sea salt in TOMAS
-|Thibaud Fritz (MIT)<br>Lizzie Lundgren (GCST)
+|Betty Croft (Dalhousie)
-|CESM
+|Aerosols
-|Medium (ongoing)
+|Not delivered
 |
 |-valign="top"
-|GMAO library version updates
+|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
-|Tom Clune (GMAO)<br>Ben Auer (GMAO)<br>Atanas Trayanov<br>GCST
+|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
-|GCHP
+|Hg simulation
-|Medium (ongoing)
+|Not delivered
 |
 |-valign="top"
-|GCHP Adjoint updates
+|WRF-GC Hg simulation
-|Colin Lee (Wash U.)
+|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
-|GCHP Adjoint
+|Hg simulation<br>WRF-GC
-|Medium (ongoing)
+|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
 |
-*See [https://github.com/geoschem/MAPL/pull/12 geoschem/MAPL PR #12]
 |}
-== Ongoing feature integration ==
+== Almost there (< 6 months) ==
-Features listed in this table are in progress and work is ongoing. Updates are continuously added to the standard model as they are available.
+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
 |-valign="top"
-|GCHP Adjoint
+|PPN+hv, PPN+OH
-|Colin Lee (CU Boulder)<br>Daven Henze (CU Boulder)
+|Robert Ryan (UCL)
-|Structural
+|Chemistry
 |
+|-valign="top"
+|MBO
+|Michael Vermeuel (UMN)
+|Chemistry
 |
 |-valign="top"
-|CESM-GC
+|Initial conditions for CH4 correcting background and stratospheric biases
-|Sebastian Eastham (MIT)<br>Thibauld Fritz (MIT)<br>Haipeng Lin (Harvard)<br>Lizzie Lundgren (Harvard)
+|Todd Mooring (Harvard)
-|Structural
+|Methane simulation
 |
+|-valign="top"
+|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
+|Bob Yantosca (Harvard)
+|Aerosols<br>Structural
 |
+*Ongoing
-|}
+|-valign="top"
+|Re-binning of off-line sea salt and dust for use in TOMAS
+|Betty Croft (Dalhousie)
+|Aerosols
+|
-== Feature integration in the queue ==
+|-valign="top"
+|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
+|Betty Croft (Dalhousie)
+|Aerosols
+|
-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.
+|-valign="top"
+|ML algorithms for bulk aerosols
+|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
+|Aerosols
+|
-{| border=1 cellspacing=0 cellpadding=5
+|-valign="top"
-|-bgcolor="#CCCCCC"
+|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
-!width="200px"|Feature
+|Shixian Zhai (Harvard)
-!width="200px"|Contributor(s)
+|Aerosols
-!width="100px"|Model scope
+|
-!width="100px"|Ease of implementation
-!width="300px"|Notes
+|-valign="top"
+|Updates to Hodzic SOA scheme
+|Jared Brewer (Harvard)
+|Aerosols
+|
+|-valign="top"
+|Automated reduction in isoprene scheme
+|Dan Westervelt (Lamont-Doherty)
+|Aerosols
+|
+|-valign="top"
+|Brown carbon chemsitry
+|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
+|Aerosols
+|
+|-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
+|
 |-valign="top"
-|[https://acp.copernicus.org/articles/21/1861/2021/ Updated Rn-222 emissions]
+|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
-|Bo Zhang
+|Jintai Lin (PKU)
 |Emissions
-|Easy
 |
-*Existing Rn emissions will remain as an option
+*Horizontal resolution: 5km, temporal resolution: JJA mean
-*Original data at https://doi.org/10.5281/zenodo.3942287
+*monthly data will be available at a later stage; please contact us
-*Waiting for data submission in NetCDF format
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/331 Climatologies for lightning NOx]
+|Updated biomass burning emission factors and species
-|Lee Murray (Rochester)
+|Tess Carter (MIT)
 |Emissions
-|Easy
 |
 |-valign="top"
-|[https://www.pnas.org/content/117/42/26076 Updated aerosol dry deposition]
+|Updated offline sea salt emissions
-|Jeff Pierce (CSU)
+|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
-|Dry deposition
+|Emissions
-|Easy
 |
-*See [https://github.com/geoschem/geos-chem/issues/604 geoschem/geos-chem #604]
 |-valign="top"
-|[https://doi.org/10.5194/acp-2021-441 Updates to IONO2 hydrolysis from Wang et al. (2021)]
+|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
-|Tomas Sherwen (York)
+|Sam Silva (MIT)
-|Chemistry
+|Emissions &<br>Science
-|Medium
 |
-*See [https://github.com/geoschem/geos-chem/pull/719 geoschem/geos-chem PR #719]
+*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
-*Needs to be merged with Bob Yantosca's gckpp_HetRates.F90 updates slated for 13.3.0
+*Needs to be updated to a more recent GEOS-Chem version
 |-valign="top"
-|[https://acp.copernicus.org/articles/19/7055/2019/ Joint CO2-CO-CH4-OCS simulation]
+|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
-|Beata Bukosa (NIWA)<br>Kevin Bowman (JPL)
+|Bob Yantosca (Harvard)
-|Specialty simulation
+|Model performance
-|Medium
 |
-*See [https://github.com/geoschem/geos-chem/issues/654 geoschem/geos-chem #654]
+*Ongoing (will be done as time allows)
-*Ideally implemented as a chemical mechanism in KPP
 |-valign="top"
-|[https://gmd.copernicus.org/articles/13/2475/2020/gmd-13-2475-2020.pdf Adaptive chemical solver] (as option)
+|Assess memory leak in GCHP
-|Lu Shen (Harvard)
+|Killian Murphy (York)
-|Chemistry
+|Model performance
-|Difficult
 |
-*Needs to be merged with Bob Yantosca's gckpp_HetRates.F90 updates slated for 13.3.0
+*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
 |}
-== Feature integration not yet prioritized ==
+== Over the horizon (6-12 months) ==
-Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integrating into the model.
+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"
+|- 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
 |-valign="top"
-|[https://agupubs.onlinelibrary.wiley.com/doi/epdf/10.1029/2006GL026015 Stratospheric HCN chemistry]
+|Snow / Icy Bromine
-|Armin Kleinbohl (JPL)<br>Debra Weisenstein (Harvard, retired)
+|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
 |Chemistry
-|Medium
 |
-*Delivered to GCST (Jun 2020)
 |-valign="top"
-|[https://gmd.copernicus.org/articles/13/2569/2020/ MEGAN3]
+|Monoterpene oxidation scheme
-|Sam Silva (MIT)
+|Jessica Haskins (MIT)
-|Emissions
+|Chemistry
-|Medium
 |
-*Implementation details may be found at https://zenodo.org/record/3614062#.XzvrH5NKjOR
 |-valign="top"
-|[https://acp.copernicus.org/articles/17/3699/2017/ GC-YIBs biosphere-atmospheric chemistry coupled model]
+|Fire related VOCs including furans
-|Xu Yue (NUIST)
+|Lu Hu (UMT)<br>Lixu Jin (UMT)
-|Science
+|Chemistry
-|Easy
 |
-*See [https://github.com/geoschem/geos-chem/issues/425 geoschem/geos-chem #425]
 |-valign="top"
-|[http://acmg.seas.harvard.edu/presentations/IGC9/posters/Tue_Posters_lam_joey.pdf Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
+|Extension of UCX into the mesosphere
-|Joey Lam(CUHK)<br>Amos Tai (CUHK)
+|Seb Eastham (MIT)<br>Eric Fleming (NASA)
-|Science
+|Chemistry
-|Easy
 |
-*Delivered to GCST (Feb 2021)
-*See [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
 |-valign="top"
-|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+|Methane flux ingestion
-|Sebastian Eastham (MIT)<br>Eric Fleming (NASA GMAO)
+|Eloise Marais (UCL)
 |Chemistry
-|Easy
 |
 |-valign="top"
-|Archived CMIP6 Met Products for GEOS-Chem Input
+|Dust non-sphericity impacts on surface chem and optical properties
-|Lee Murray (Rochester)
+|Inderjeet Singh (WashU)
-|Input data
+|Aerosols
-|Easy
 |
-*See updates from [http://acmg.seas.harvard.edu/geos/word_pdf_docs/steering_cmte/gc_sc_minutes_24Feb2021.pdf Feb 2021 GCSC meeting]
-*Official announcement coming soon
 |-valign="top"
-|Landcover/Fire Emissions Offline LPJlmfire
+|Size-resolved stratospheric aerosol
-|Loretta Mickley (Harvard)<br>Yang Li (Harvard)
+|Seb Eastham (MIT)
-|Emissions
+|Aerosols
-|Easy
 |
-*Data files delivered to GCST (July 2021)
 |-valign="top"
-|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
+|Extend aerosol settling
-|Sam Silva (MIT)
+|Eloise Marais (UCL)
-|Science
+|Aerosols
-|Medium
 |
-*Code is available at https://zenodo.org/record/3614062
-|}
-== Almost there (< 6 months) ==
-Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
-{| border=1 cellspacing=0 cellpadding=5
-|- bgcolor="#cccccc"
-!width="200px"|Feature
-!width="200px"|Contributor(s)
-!width="100px"|Model scope
-!width="420px"|Notes
+|-valign="top"
+|Stratospheric aerosol APM
+|Fangqun Yu (SUNY)
+|Aerosols
+|
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/559 Implement H2 chemistry in UCX]
+|Plume-in-grid model
-|Chris Holmes (FSU)
+|Hongwei Sun (Harvard)
 |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]
+|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
-|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
+|Lee Murray (Rochester)
 |Emissions
 |
 |-valign="top"
-|[[Grid-independent_emissions|Updated offline biogenic emissions]]
+|Seb aircraft emissions beyond recent 2019 update
-|Hongjian Weng (PKU)
+|Seb Eastham (MIT)
 |Emissions
 |
-*Identified as a priority for GC 13, but not yet delivered
-*Waiting on updated MODIS LAI data
 |-valign="top"
-|[[Grid-independent_emissions|Updated offline sea salt emissions]]
+|FRP-based fire emsisions for eastern US at 0.2	deg
-|Hongjian Weng (PKU)
+|Charlie Fite (FSU)
 |Emissions
 |
-*Identified as a priority for GC 13, but not yet delivered
 |-valign="top"
-|[[Grid-independent_emissions|Updated offline soil NOx emissions]]
+|Hg iodine chemistry
-|Hongjian Weng (PKU)
+|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
-|Emissions
+|Hg simulation
 |
-*Identified as a priority for GC 13, but not yet delivered
 |-valign="top"
-|Provide recommended rather than hard-coded scaling factors for online emissions
+|Hg simulation in GCHP
-|GCST
+|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
-|Emissions
+|Hg simulation
 |
-*Identified as a priority for GC 13, but not yet developed
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for volcano emissions]
+|Update Hg ocean and soil boundary conditions for consistency with new chemistry
-|GCST
+|Yanxu Zhang (Nanjing U.)
-|Emissions
+|Hg simulation
 |
-*Identified as a priority for GC 13, but not yet developed
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
+|Dry deposition diagnostics by land cover
-|GCST
+|Holly Nowell (FSU)
-|Emissions
+|Diagnostics
 |
-*Identified as a priority for GC 13, but not yet developed
 |-valign="top"
-|Diagnostic to archive XCO2, XCO, and XCH4
+|Dry deposition process diagnostics
-|Dylan Jones (Toronto)
+|Holly Nowell (FSU)
-|Diagnostic
+|Diagnostics
 |
 |-valign="top"
-|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
+|Isotope simulation for CO and CH4 in GCHP
-|Kazu Miyazaki (JPL)
+|Lee Murray (Rochester)
-|Input data
+|Carbon simulation
 |
 |-valign="top"
-|BrC aging
+|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
-|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
+|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
-|Chemistry
+|Emissions<br>CH4 simulation
 |
 |-valign="top"
-|Shared Socioeconomic Pathways Emission Inventories
+|Modularization of aerosols code for interface with GOCART in GEOS
-|Hong Liao (NUIST)
+|Christoph Keller (GMAO)
-|Emissions
+|Structural
 |
 |-valign="top"
-|Rediagnosis of RAS convection in GEOS-Chem
+|Improve load balancing in GCHP
-|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA/GMAO)
+|Seb Eastham (MIT)
-|Convection
+|Model performance
 |
-*Work is finished and a manuscript is in preparation.
 |-valign="top"
-|Read-in of native GEOS output
+|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
-|WUStL GCST
+|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
-|Input data
+|Transport
 |
-*GCHP only
 |-valign="top"
-|Change GCHP advection inputs to use total pressure and mixing ratio rather than dry
+|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
-|Sebastian Eastham (MIT)
+|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
 |Transport
 |
-*Identified as a priority for GC 13, but not yet delivered
-*GCHP only
 |-valign="top"
-|Add capability to read mass fluxes for use in advection
+|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
-|Sebastian Eastham (MIT)
+|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
 |Transport
 |
-*Identified as a priority for GC 13, but not yet delivered
-*GCHP only
 |-valign="top"
-|HTAPv3 emissions (0.1 deg, 2002-2018)
+|MAPL version 3
-|Emissions & Deposition WG
+|Lizzie Lundgren (Harvard)
-|Emissions
+|GCHP
+|Will include History wildcard handling in GCHP
+|-valign="top"
+|Migrate benchmark meteorology from MERRA2 to GEOS-IT
+|GCST
+|Benchmarking
 |
 |}
-== Over the horizon (6-12 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 6-12 months timeframe.
+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
@@ Line 473: / Line 549: @@
 !width="200px"|Contributor(s)
 !width="100px"|Model scope
-!width="420px"|Notes
+!width="420px"|Notes and References
 |-valign="top"
-|Methylethylketone chemistry
+|Updates to Aromatic chemistry
-|Jared Brewer (CSU)
+|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
 |Chemistry
 |
 |-valign="top"
-|Add sulfate dependence to SOA yield from isoprene in simple SOA
+|Nitrate photolysis
-|Eloise Marais (Leicester)
+|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
 |Chemistry
 |
 |-valign="top"
-|GTMM updates
+|In aerosol chemistry Halogens
-|Ben Geyman (Harvard)
+|Mat Evans (York)<br>Hansen Cao (CU Boulder)
-|Hg simulation
+|Chemistry
 |
 |-valign="top"
-|[https://github.com/geoschem/GCHP/issues/19 Integrating GMAO's tracer gridded component in GCHP]
+|Benchmark box model of GC Chemistry
-|Christoph Keller (NASA GMAO)
+|Katie Travis (NASA)
-|Transport Tracer simulation
+|Chemistry
 |
 |-valign="top"
-|Streamlining of specialty simulations through HEMCO and KPP
+|Alkyl nitrates Alk7, PHAN
-|GCST
+|Katie Travis (NASA)
-|Chemistry, Specialty simulations
+|Chemistry
 |
-|}
-== 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="200px"|Feature
-!width="200px"|Contributor(s)
-!width="100px"|Model scope
-!width="420px"|Notes
 |-valign="top"
-|Implement isotope simulation for CO and CH4 in GCHP
+|Add stratospheric ozone species to full-chemistry simulations
 |Lee Murray (Rochester)
-|Specialty simulation
+|Chemistry
 |
 |-valign="top"
-|Migrate LETFK DA scheme to GCHP
+|Perchlorate chemistry
-|Kazu Miyazaki (JPL)
+|Yuk Chun Chan (UWAB)
-|Structural
+|Chemistry
 |
 |-valign="top"
-|Super fast chemistry scheme
+|Explicit heterogeneous sulfate chemistry
-|Benjamin Brown-Steiner (AER)<br>Makoto Kelp (Harvard)
+|Katie Travis (NASA)<br>Becky Alexander (UT)
 |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
+|HOx and ozone "emissions" from lightning as option in model to play with
-|Becky Alexander (UW)
+|Jingqiu (Alaska)<br>Lee Murray (Rochester)
-|Aerosols
+|Emissions
 |
 |-valign="top"
-|DMS oxidation scheme updating
+|Sea salt aerosol from sea ice leads
-|Becky Alexander (UW)<br>Qianjie Chen (UW)
+|Hannah Horowitz (U. Illinois)
-|Chemistry
+|Emissions
 |
-*Delayed - implemented pre-KPP
-*Currently bring implemented in KPP by UC Riverside group
 |-valign="top"
-|Heterogeneous sulfate production
+|Drought-stress algorithm
-|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+|Wei Li (U. Houston)
-|Chemistry
+|
 |
-*Delayed - implemented pre-KPP
 |-valign="top"
-|Hg in WRF-GC
+|Biomass burning injection height profiles
-|Yanxu Zhang (Nanjing)
+|Inderjeet Singh (WashU)
-|Hg simulation
+|Emissions
 |
 |-valign="top"
-|Hg with blowing snow
+|OCIM integration
-|Yanxu Xhang (Nanjing)
+|Chris Holmes (FSU)<br>Lee Murray (Rochester)
-|Emissions, Hg simulation
+|
 |
 |-valign="top"
-|Hg isotopes
+|Updating landcover products in GEOS-Chem
-|Xiaotian Xu, Yanxu Xhang (Nanjing)
+|Chris Holmes (FSU)<br>Jeff Geddes (BU)
-|Hg simulation
+|Input data
 |
 |-valign="top"
-|Hg in CESM CAM-CHEM
+|Dry deposition physical improvement
-|Peng Zhang, Yanxu Xhang (Nanjing)
+|Chris Holmes (FSU)
-|Hg simulation
+|Dry deposition
 |
 |-valign="top"
-|Complex / multicomplex variables
+|TOMAS WRF-GC in regional Thailand simulation
-|Shannon Capps (Drexel)
+|Win Trivitayanurak (Chulalongkorn U)
-|Structural
+|Aerosols
 |
 |}
-----------------
-'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''