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

Latest revision as of 16:35, 7 May 2024

On this page we list the current priorities for GEOS-Chem development. This list is continuously updated based on code readiness and input from the Working Groups and the Steering Committee. For history of past releases see the GEOS-Chem Versions wiki page.

Merged and awaiting release

See the links below for items merged and awaiting release.

Mergeable at any time	Version in development
GEOS-Chem no-diff-to-benchmark	GEOS-Chem 14.4.0

Feature integration in progress

Features listed in this table are actively being integrated into GEOS-Chem by the GEOS-Chem Support Team. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.

Feature	Contributor(s)	Model scope	Ease of implementation	Notes and References
Extend GFED4 emissions through 2023	Sarah Hancock (Harvard) Melissa Sulprizio (Harvard)	Emissions	Simple	geos-chem PR #2282
New soil NOx parameterization	Yi Wang (U. Iowa) Jun Wang (U. Iowa)	Emissions	Medium	geos-chem issue #1288 Incorporates new met field TSOIL1

Prioritized and in the queue

Features listed in this table are prioritized for integration into GEOS-Chem in the near future.

Feature	Contributor(s)	Model scope	Ease of implementation	Delivery status	Notes and References
ALK4 & R4N2 chemistry	Jared Brewer (UMN)	Chemistry	TBD	Not delivered	geos-chem issue #1625 Brewer, J.F. et al., J. Geophys. Res., 2023.
Mass flux regridding fix in MAPL	Tom Clune (GMAO) Seb Eastham (MIT)	GCHP input regridding	Medium		GCHP Issue #377 Currently on hold, as the submitted update results in zero diff
New version of CEDS at 0.1 deg	Dandan Zhang (WashU)	Emissions	Simple	Delivered	geos-chem issue #1745 Currently on hold while an issue with seasonality in the new CEDS data is being investigated by the authors.
Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4	Lizzie Lundgren (Harvard)	GC-Classic	Medium		hemco issue #18
Capture all trop and PBL height changes in budget diagnostics	Chris Holmes (FSU) Lizzie Lundgren (Harvard)	Diagnostics	Medium	Delivered	geos-chem PR 2103

Ready to go in

Features listed in this table are ready to go in but have either not been delivered or are not yet prioritized for integration into GEOS-Chem.

Feature	Contributor(s)	Model scope	Delivery status	Notes and References
KORUS-AQ emissions for East Asia (as an option)	Katie Travis (NASA)	Emissions	Simple
Geologic emission of ethane and propane	Matthew Rowlinson and Mat Evans(York)	Emissions	Delivered Jan 2023	Global source from https://doi.org/10.1038/s41561-018-0073-0 with spatial distribution from https://doi.org/10.5194/essd-11-1-2019
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange	Joey Lam(CUHK) Amos Tai (CUHK)	Science	Delivered Feb 2021	geos-chem PR #629
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100	Yang Li (Baylor University) Loretta Mickley (Harvard)	Emissions	Delivered Jul 2021	Data involves many files- need to think about temporal frequency
Online H2 chemistry	Maria Paula Pérez-Peña (UNSW) Jenny Fisher (UOW) Dylan Millet (UMN)	Chemistry	Delivered June 2023	Pérez-Peña, M.P. et al., ACP, 2022. Implemented in v12.5, needs to be brought up to current version
DMS Chemistry	Linia Tashmim (UC Riverside) William Porter (UC Riverside)	Chemistry	Not delivered
Organic acids (RCOOH)	Katie Travis (NASA)	Chemistry	Not delivered
Improve carbon & nitrogen conservation in reactions	Kelvin Bates (Harvard)	Chemistry	Not delivered
Blowing snow sea salt in TOMAS	Betty Croft (Dalhousie)	Aerosols	Not delivered
Australian anthropogenic Hg emissions	Stephen MacFarlane (UOW) Jenny Fisher (UOW) Hannah Horowitz (U. Illinois) Viral Shah (Harvard)	Hg simulation	Not delivered
WRF-GC Hg simulation	Xiaotian Xu (Nanjing U.) Yanxu Zhang (Nanjing U.)	Hg simulation WRF-GC	Not delivered
Updated HgII gas-partical partitioning	Kaiyun Liu (Tsinghua U.) Qingru Wu (Tsinghua U.) Shuxiao Wang (Tsinghua U.)	Hg simulation	Not delivered	Should be option, not default
Dry deposition to F90 (readability)	Chris Holmes (FSU)	Dry deposition	Not delivered

Almost there (< 6 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.

Feature	Contributor(s)	Model scope	Notes and References
PPN+hv, PPN+OH	Robert Ryan (UCL)	Chemistry
MBO	Michael Vermeuel (UMN)	Chemistry
Initial conditions for CH4 correcting background and stratospheric biases	Todd Mooring (Harvard)	Methane simulation
Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism	Bob Yantosca (Harvard)	Aerosols Structural	Ongoing
Re-binning of off-line sea salt and dust for use in TOMAS	Betty Croft (Dalhousie)	Aerosols
Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90	Betty Croft (Dalhousie)	Aerosols
ML algorithms for bulk aerosols	Arshad Nair (SUNY Albany) Fangqun Yu (SUNY Albany)	Aerosols
PM2.5 and PM10 calculations: aerodynamic vs geometric diameters	Shixian Zhai (Harvard)	Aerosols
Updates to Hodzic SOA scheme	Jared Brewer (Harvard)	Aerosols
Automated reduction in isoprene scheme	Dan Westervelt (Lamont-Doherty)	Aerosols
Brown carbon chemsitry	Jingqiu Mao (U. Alaska) Xuan Wang (CUHK)	Aerosols
GEOS resolution and subgrid convection - Part 2 RAS parameter tuning	Tailong He (Toronto) Dylan Jones (Toronto) Andrea Molod (NASA GMAO)	Convection
High-res top-down TROPOMI-derived seasonal mean NOx emissions for China	Jintai Lin (PKU)	Emissions	Horizontal resolution: 5km, temporal resolution: JJA mean monthly data will be available at a later stage; please contact us
Updated biomass burning emission factors and species	Tess Carter (MIT)	Emissions
Updated offline sea salt emissions	Hongjian Weng (PKU) Jintai Lin (PKU)	Emissions
Canopy Physics Model	Sam Silva (MIT)	Emissions & Science	DOI: 10.5281/zenodo.3614062 Needs to be updated to a more recent GEOS-Chem version
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone	Bob Yantosca (Harvard)	Model performance	Ongoing (will be done as time allows)
Assess memory leak in GCHP	Killian Murphy (York)	Model performance	NOTE: Most memory leaks in GCHP have been fixed by geoschem/geos-chem PR #1353. Will wait until MAPL3 to further assess.
Hybrid MPI-OpenMP in GCHP	Seb Eastham (MIT) Killian Murphy (York)	Model performance
Improve pressure handling in GCHP advection	Seb Eastham (MIT) Yuanjian Zhang (WashU)	GCHP
Use ExtData2G as default GCHP input module	Lizzie Lundgren (Harvard)	GCHP	Will replace ExtData.rc with yaml file

Over the horizon (6-12 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.

Feature	Contributor(s)	Model scope	Notes and References
Snow / Icy Bromine	Becky Alexander (UW) William Swanson (U. Alaska) Shuting Zhai (UW)	Chemistry
Monoterpene oxidation scheme	Jessica Haskins (MIT)	Chemistry
Fire related VOCs including furans	Lu Hu (UMT) Lixu Jin (UMT)	Chemistry
Extension of UCX into the mesosphere	Seb Eastham (MIT) Eric Fleming (NASA)	Chemistry
Methane flux ingestion	Eloise Marais (UCL)	Chemistry
Dust non-sphericity impacts on surface chem and optical properties	Inderjeet Singh (WashU)	Aerosols
Size-resolved stratospheric aerosol	Seb Eastham (MIT)	Aerosols
Extend aerosol settling	Eloise Marais (UCL)	Aerosols
Stratospheric aerosol APM	Fangqun Yu (SUNY)	Aerosols
Plume-in-grid model	Hongwei Sun (Harvard)	Chemistry
Updated lightning NOx: Prescribe from ground and geostationary lightning flashes	Lee Murray (Rochester)	Emissions
Seb aircraft emissions beyond recent 2019 update	Seb Eastham (MIT)	Emissions
FRP-based fire emsisions for eastern US at 0.2 deg	Charlie Fite (FSU)	Emissions
Hg iodine chemistry	Yiming Fu Yanxu Zhang (Nanjing U.)	Hg simulation
Hg simulation in GCHP	Ari Feinberg (MIT) Lyssa Freese (MIT)	Hg simulation
Update Hg ocean and soil boundary conditions for consistency with new chemistry	Yanxu Zhang (Nanjing U.)	Hg simulation
Dry deposition diagnostics by land cover	Holly Nowell (FSU)	Diagnostics
Dry deposition process diagnostics	Holly Nowell (FSU)	Diagnostics
Isotope simulation for CO and CH4 in GCHP	Lee Murray (Rochester)	Carbon simulation
Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)	Melissa Sulprizio (Harvard) Tia Scarpelli (U. Edinburgh) Zichong Chen (Harvard)	Emissions CH4 simulation
Modularization of aerosols code for interface with GOCART in GEOS	Christoph Keller (GMAO)	Structural
Improve load balancing in GCHP	Seb Eastham (MIT)	Model performance
Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer	Bo Zhang (NIA) Hongyu Liu (NIA / NASA Langley)	Transport
Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer	Gan Luo (SUNY Albany) Fangqun Yu (SUNY-Albany)	Transport
Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons	Seb Eastham (MIT) Clara Orbe (NASA GISS) Andrew Schuh (CSU)	Transport
MAPL version 3	Lizzie Lundgren (Harvard)	GCHP	Will include History wildcard handling in GCHP
Migrate benchmark meteorology from MERRA2 to GEOS-IT	GCST	Benchmarking

Longer term (12-24 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.

Feature	Contributor(s)	Model scope
Updates to Aromatic chemistry	Stephen MacFarlane (UOW) Jenny Fisher (UOW)	Chemistry
Nitrate photolysis	Mat Evans (York) Thomas Sherwen (York) Matthew Rowlinson (York)	Chemistry
In aerosol chemistry Halogens	Mat Evans (York) Hansen Cao (CU Boulder)	Chemistry
Benchmark box model of GC Chemistry	Katie Travis (NASA)	Chemistry
Alkyl nitrates Alk7, PHAN	Katie Travis (NASA)	Chemistry
Add stratospheric ozone species to full-chemistry simulations	Lee Murray (Rochester)	Chemistry
Perchlorate chemistry	Yuk Chun Chan (UWAB)	Chemistry
Explicit heterogeneous sulfate chemistry	Katie Travis (NASA) Becky Alexander (UT)	Chemistry
HOx and ozone "emissions" from lightning as option in model to play with	Jingqiu (Alaska) Lee Murray (Rochester)	Emissions
Sea salt aerosol from sea ice leads	Hannah Horowitz (U. Illinois)	Emissions
Drought-stress algorithm	Wei Li (U. Houston)
Biomass burning injection height profiles	Inderjeet Singh (WashU)	Emissions
OCIM integration	Chris Holmes (FSU) Lee Murray (Rochester)
Updating landcover products in GEOS-Chem	Chris Holmes (FSU) Jeff Geddes (BU)	Input data
Dry deposition physical improvement	Chris Holmes (FSU)	Dry deposition
TOMAS WRF-GC in regional Thailand simulation	Win Trivitayanurak (Chulalongkorn U)	Aerosols

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

Latest revision as of 16:35, 7 May 2024

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
-=== 12.6.0 ===
+|-valign="top"
+|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
+|align="center"|'''[[GEOS-Chem 14.4.0]]'''
-<span style="color:darkorange">'''This version is currently in development. See [[GEOS-Chem_12#12.6.0|the ''GEOS-Chem 12'' wiki page]] for details.'''</span>
+|}
-=== 12.7.0 ===
+== Feature integration in progress ==
-This version will require 1-month and 1-year full-chemistry benchmarks and a 1-year Transport Tracers benchmark.
+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="300px"|Notes
+!width="100px"|Ease of implementation
+!width="300px"|Notes and References
-|-
+|-valign="top"
-!colspan="4" bgcolor="#CCFFFF"|Features affecting the full-chemistry simulation:
+|Extend GFED4 emissions through 2023
+|Sarah Hancock (Harvard)<br>Melissa Sulprizio (Harvard)
+|Emissions
+|Simple
+|
+*[https://github.com/geoschem/geos-chem/pull/2282 geos-chem PR #2282]
 |-valign="top"
-|[https://www.geosci-model-dev.net/12/111/2019/gmd-12-111-2019.pdf Aromatic VOC chemistry]
+|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
-|Yingying Yan (PKU)<br>Jintai Lin (PKU)
+|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
-|Science
+|Emissions
+|Medium
 |
-*Delivered to GCST (Jul 2019)
+*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
+*Incorporates new met field TSOIL1
+|}
+== Prioritized and in the queue ==
+Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
+{| 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://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2018JD029046 Small alkyl nitrate chemistry]
+|ALK4 & R4N2 chemistry
-|Jenny Fisher (Wollongong)
+|Jared Brewer (UMN)
-|Science
+|Chemistry
+|TBD
+|Not delivered
 |
-*Delivered to GCST (Jul 2019)
+*[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"
-|Methanol as part of standard chemical mechanism
+|Mass flux regridding fix in MAPL
-|Dylan Millet (U Minnesota)<br>Katie Travis (NASA)
+|Tom Clune (GMAO)<br>Seb Eastham (MIT)
-|Science
+|GCHP input regridding
+|Medium
+|
 |
-*Implemented in v10-01; Needs to be brought up to GEOS-Chem 12
+*[https://github.com/geoschem/GCHP/issues/377 GCHP Issue #377]
+*'''Currently on hold, as the submitted update results in zero diff'''
 |-valign="top"
-|[[Leaf_area_indices_in_GEOS-Chem#Yuan_processed_MODIS_LAI|Update to Yuan processed MODIS LAI product (covering years 2005-2016)]]
+|New version of CEDS at 0.1 deg
-|GCST
+|Dandan Zhang (WashU)
-|Science
+|Emissions
+|Simple
+|Delivered
 |
-*NOTE: Will require an update to HEMCO to enable reading of data with 8-day intervals into GEOS-Chem "Classic"
+*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
+*'''Currently on hold while an issue with seasonality in the new CEDS data is being investigated by the authors.'''
 |-valign="top"
-|[https://www.geosci-model-dev.net/12/3439/2019/ Rainout and washout update]
+|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
-|Gan Luo(SUNY-Albany)<br>Fangqun Yu (SUNY-Albany)
+|Lizzie Lundgren (Harvard)
-|Science
+|GC-Classic
+|Medium
+|
 |
+*[https://github.com/geoschem/HEMCO/issues/18 hemco issue #18]
 |-valign="top"
-|Ozone deposition to the ocean
+|Capture all trop and PBL height changes in budget diagnostics
-|Ryan Pound (York)<br>Mat Evans (York)
+|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
-|Science
+|Diagnostics
+|Medium
+|Delivered
 |
+*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
-|-
+|}
-!colspan="4" bgcolor="#CCFFFF"|Features NOT affecting the full-chemistry simulation:
+== 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"
-|Allow HEMCO to read files at specified time intervals to improve file I/O
+|KORUS-AQ emissions for East Asia (as an option)
-|[[GCST]]
+|Katie Travis (NASA)
-|Structural
+|Emissions
+|Simple
 |
 |-valign="top"
-|[[Benchmark/GEOS-Chem_12.5.0#Validation_of_netCDF_diagnostics|Begin removal of binary punch (aka "bpch") diagnostics]]
+|Geologic emission of ethane and propane
-|[[GCST]]
+|Matthew Rowlinson and Mat Evans(York)
-|Structural
+|Emissions
+|Delivered<br>Jan 2023
 |
+*Global source from https://doi.org/10.1038/s41561-018-0073-0 with spatial distribution from https://doi.org/10.5194/essd-11-1-2019
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/69 Add netCDF diagnostic for UV fluxes from FAST-JX]
+|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
-|Jonathan Moch (Harvard)<br>Bob Yantosca ([[GCST]])
+|Joey Lam(CUHK)<br>Amos Tai (CUHK)
-|Structural
+|Science
+|Delivered<br>Feb 2021
 |
-*In dev/12.7.0 branch
+*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
-|-
+|-valign="top"
-!colspan="4" bgcolor="#CCFFFF"|Features only affecting GCHP:
+|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"
-|Add meteorology to internal state to scale mixing ratios if FV3 off
+|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
-|Lizzie Lundgren (GCST)
+|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
-|Structural
+|Chemistry
+|Delivered<br>June 2023
 |
-*Enables mass conservation when advection is off
+*[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"
+|DMS Chemistry
+|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
+|Chemistry
+|Not delivered
+|
-=== 12.8.0 ===
+|-valign="top"
+|Organic acids (RCOOH)
+|Katie Travis (NASA)
+|Chemistry
+|Not delivered
+|
-This version will require 1-month and 1-year full-chemistry benchmarks.
+|-valign="top"
+|Improve carbon & nitrogen conservation in reactions
+|Kelvin Bates (Harvard)
+|Chemistry
+|Not delivered
+|
-{| border=1 cellspacing=0 cellpadding=5
+|-valign="top"
-|-bgcolor="#CCCCCC"
+|Blowing snow sea salt in TOMAS
-!width="500px"|Feature
+|Betty Croft (Dalhousie)
-!width="200px"|Submitted by
+|Aerosols
-!width="100px"|Type
+|Not delivered
-!width="300px"|Notes
+|
 |-valign="top"
-|[https://www.atmos-chem-phys.net/19/9613/2019/ Isoprene chemistry]
+|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
-|Kelvin Bates (Harvard)
+|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
-|Science
+|Hg simulation
+|Not delivered
 |
 |-valign="top"
-|[https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2017GL075270 Wet deposition parameterization]
+|WRF-GC Hg simulation
-|Kelvin Bates (Harvard)<br>GCST
+|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
-|Science
+|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
-== Priorities not yet assigned to a particular version ==
+|-valign="top"
+|Dry deposition to F90 (readability)
+|Chris Holmes (FSU)
+|Dry deposition
+|Not delivered
+|
-The following items have been identified as priorities for GEOS-Chem, but have not yet been assigned to a particular GEOS-Chem version.
+|}
-=== Ready to go in ===
+== Almost there (< 6 months) ==
-{| border=1 cellspacing=0 cellpadding=5
+Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
-|-bgcolor="#CCCCCC"
-!width="500px"|Feature
-!width="200px"|Submitted by
-!width="100px"|Type
-!width="300px"|Notes
-|-
+{|border=1 cellspacing=0 cellpadding=5
-!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+|- bgcolor="#cccccc"
+!width="200px"|Feature
+!width="200px"|Contributor(s)
+!width="100px"|Model scope
+!width="420px"|Notes and References
 |-valign="top"
-|Implement H2 chemistry in UCX
+|PPN+hv, PPN+OH
-|Chris Holmes (FSU)
+|Robert Ryan (UCL)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Joint CO, CO2, CH4 simulation
+|MBO
-|Beata Bukosa (Wollongong)
+|Michael Vermeuel (UMN)
-|Science
+|Chemistry
 |
-*Delivered to GCST (Jun 2019)
-|-
+|-valign="top"
-!colspan="4" bgcolor="#CCFFFF"|Emissions and surface fluxes updates
+|Initial conditions for CH4 correcting background and stratospheric biases
+|Todd Mooring (Harvard)
+|Methane simulation
+|
-|-valign="top
+|-valign="top"
-|Updated Streets Hg emissions
+|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
-|Colin Thackray (Harvard)
+|Bob Yantosca (Harvard)
-|Science
+|Aerosols<br>Structural
 |
+*Ongoing
-|-valign="top
+|-valign="top"
-|Updated EDGAR 4.3 Hg emissions
+|Re-binning of off-line sea salt and dust for use in TOMAS
-|Amanda Giang (UBC)
+|Betty Croft (Dalhousie)
-|Science
+|Aerosols
 |
 |-valign="top"
-|Offline CLM Harmonization
+|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
-|Anthony Wong (BU)<br>Jeff Geddes (BU)
+|Betty Croft (Dalhousie)
-|Science
+|Aerosols
 |
 |-valign="top"
-|[https://www.geosci-model-dev.net/11/2009/2018/ CH4 soil absorption from MeMo model]
+|ML algorithms for bulk aerosols
-|Melissa Sulprizio (Harvard)
+|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
-|Science
+|Aerosols
 |
-|-
+|-valign="top"
-!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
+|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
+|Shixian Zhai (Harvard)
+|Aerosols
+|
 |-valign="top"
-|Arctic marine SOA
+|Updates to Hodzic SOA scheme
-|Betty Croft (Dalhousie)
+|Jared Brewer (Harvard)
-|Science
+|Aerosols
 |
-*Details on wiki only, not in standard code
-|}
+|-valign="top"
+|Automated reduction in isoprene scheme
+|Dan Westervelt (Lamont-Doherty)
+|Aerosols
+|
---[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
+|-valign="top"
+|Brown carbon chemsitry
+|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
+|Aerosols
+|
-=== Almost there (< 6 months) ===
+|-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
+|
-{| border=1 cellspacing=0 cellpadding=5
+|-valign="top"
-|- bgcolor="#cccccc"
+|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
-!width="500px"|Item
+|Jintai Lin (PKU)
-!width="200px"|Author(s)
+|Emissions
-!width="100px"|Type
+|
-!width="300px"|Notes
+*Horizontal resolution: 5km, temporal resolution: JJA mean
+*monthly data will be available at a later stage; please contact us
 |-valign="top"
-|Diagnostic to archive XCO2, XCO, and XCH4
+|Updated biomass burning emission factors and species
-|Dylan Jones (Toronto)
+|Tess Carter (MIT)
-|Science
+|Emissions
 |
 |-valign="top"
-|Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations
+|Updated offline sea salt emissions
-|Kazu Miyazaki (JPL)
+|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
-|Science
+|Emissions
 |
 |-valign="top"
-|Evaluate the impact on the tropsophere of using the family approach for transport in the stratosphere
+|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
-|Christoph Keller (NASA/GMAO)
+|Sam Silva (MIT)
-|Science
+|Emissions &<br>Science
 |
+*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
+*Needs to be updated to a more recent GEOS-Chem version
 |-valign="top"
-|Examine differences in the lightning NOx schemes in GEOS-Chem and GMI
+|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
-|Christoph Keller (NASA/GMAO)<br>Lee Murray (Rochester)
+|Bob Yantosca (Harvard)
-|Science
+|Model performance
 |
+*Ongoing (will be done as time allows)
 |-valign="top"
-|HMS chemistry
+|Assess memory leak in GCHP
-|Jonathan Moch (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"
-|Heterogeneous sulfate production
+|Hybrid MPI-OpenMP in GCHP
-|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+|Seb Eastham (MIT)<br>Killian Murphy (York)
-|Science
+|Model performance
 |
 |-valign="top"
-|BrC aging
+|Improve pressure handling in GCHP advection
-|Xuan Wang (Harvard)<br>Melanie Hammer(Dalhousie)
+|Seb Eastham (MIT)<br>Yuanjian Zhang (WashU)
-|Science
+|GCHP
 |
 |-valign="top"
-|Retire carbon-based units for VOCs
+|Use ExtData2G as default GCHP input module
-|GCST
+|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"
-|Latitudinally and monthly resolved fixed surface concentrations for GGs back to 1850
+|Monoterpene oxidation scheme
-|Tomás Sherwen (York)<br>Lee Murray (Rochester)
+|Jessica Haskins (MIT)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Update of US emissions to NEI16
+|Fire related VOCs including furans
-|Barron Henderson (EPA)
+|Lu Hu (UMT)<br>Lixu Jin (UMT)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Updated surface ocean dissolved Hg0 from MITgcm
+|Extension of UCX into the mesosphere
-|Yanxu Zhang (Nanjing)
+|Seb Eastham (MIT)<br>Eric Fleming (NASA)
-|Science
+|Chemistry
 |
 |-valign="top"
-|HEMCO improvements
+|Methane flux ingestion
-|Christoph Keller (NASA/GMAO)<br>GCST
+|Eloise Marais (UCL)
-|Structural
+|Chemistry
 |
 |-valign="top"
-|Cmake in GCHP
+|Dust non-sphericity impacts on surface chem and optical properties
-|Liam Bindle (Dalhousie)
+|Inderjeet Singh (WashU)
-|Structural
+|Aerosols
 |
 |-valign="top"
-|One-Way Coupling w/ GISS ModelE3
+|Size-resolved stratospheric aerosol
-|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+|Seb Eastham (MIT)
-|Structural
+|Aerosols
 |
 |-valign="top"
-|Online Coupling w/ GEOS CCM
+|Extend aerosol settling
-|Lizzie Lundgren (Harvard)<br>Lu Hu (U. MT)<br>Christoph Keller (NASA/GMAO)
+|Eloise Marais (UCL)
-|Structural
+|Aerosols
 |
 |-valign="top"
-|Shared Socioeconomic Pathways Emission Inventories
+|Stratospheric aerosol APM
-|Hong Liao (NUIST)
+|Fangqun Yu (SUNY)
-|Science
+|Aerosols
 |
-|}
---[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
-=== Over the horizon (6-12 months) ===
-{| border=1 cellspacing=0 cellpadding=5
-|- bgcolor="#cccccc"
-!width="500px"|Item
-!width="200px"|Author(s)
-!width="100px"|Type
-!width="300px"|Notes
 |-valign="top"
-|Update OCS simulation in the standard code
+|Plume-in-grid model
-|Kevin Bowman (JPL)
+|Hongwei Sun (Harvard)
-|Science
+|Chemistry
 |
 |-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
+|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
-|Susan Strahan (Goddard)<br>Sebastian Eastham (MIT)
+|Lee Murray (Rochester)
-|Science
+|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)
-|Science
+|Emissions
 |
 |-valign="top"
-|New schedule for tracer transport benchmarks (FP change, scavenging change, or major release)
+|FRP-based fire emsisions for eastern US at 0.2	deg
-|Andrea Molod (NASA/GMAO)
+|Charlie Fite (FSU)
-|Science
+|Emissions
 |
 |-valign="top"
-|Updated cloud water pH
+|Hg iodine chemistry
-|Viral Shah (Harvard)<br>Jonathan Moch (Harvard)
+|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
-|Science
+|Hg simulation
 |
 |-valign="top"
-|Halogen chemistry update
+|Hg simulation in GCHP
-|Tomas Sherwen (York)<br>Xuan Wang (Harvard)<br>Shuting Zhai (UW)
+|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
-|Science
+|Hg simulation
 |
 |-valign="top"
-|Methylethylketone chemistry
+|Update Hg ocean and soil boundary conditions for consistency with new chemistry
-|Jared Brewer (CSU)
+|Yanxu Zhang (Nanjing U.)
-|Science
+|Hg simulation
 |
 |-valign="top"
-|Add sulfate dependence to SOA yield from isoprene in simple SOA
+|Dry deposition diagnostics by land cover
-|Elo&iuml;se Marais (Leicester)
+|Holly Nowell (FSU)
-|Science
+|Diagnostics
 |
 |-valign="top"
-|Trace metal simulation
+|Dry deposition process diagnostics
-|Junwei Xu (Dalhousie)
+|Holly Nowell (FSU)
-|Science
+|Diagnostics
 |
 |-valign="top"
-|Hg gas-phase photo-reduction
+|Isotope simulation for CO and CH4 in GCHP
-|Colin Thackray (Harvard)
+|Lee Murray (Rochester)
-|Science
+|Carbon simulation
 |
 |-valign="top"
-|Move GEOS-Chem Classic run directory creation from Unit Tester to source code
+|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
-|GCST
+|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
-|Structural
+|Emissions<br>CH4 simulation
 |
 |-valign="top"
-|Dynamic diagnostic array size allocation based on settings in HISTORY.rc
+|Modularization of aerosols code for interface with GOCART in GEOS
-|GCST
+|Christoph Keller (GMAO)
 |Structural
 |
 |-valign="top"
-|Removal of binary punch diagnostics
+|Improve load balancing in GCHP
-|GCST
+|Seb Eastham (MIT)
-|Structural
+|Model performance
 |
 |-valign="top"
-|GCPy 1-year benchmark and continued development
+|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
-|GCST
+|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
-|Structural
+|Transport
 |
 |-valign="top"
-|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
+|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
-|Amos Tai (CUHK)
+|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
-|Science
+|Transport
 |
 |-valign="top"
-|Canopy Physics Model
+|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
-|Sam Silva (MIT)
+|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
-|Structural
+|Transport
 |
 |-valign="top"
-|Landcover/Fire Emissions Offline LPJlmfire
+|MAPL version 3
-|Loretta Mickley (Harvard)
+|Lizzie Lundgren (Harvard)
-|Science
+|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 for POPs (Harvard)<br>Peter Ivatt (York) for PAH
+|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"
-|Build KPP when you compile GC
+|Updating landcover products in GEOS-Chem
-|GCST
+|Chris Holmes (FSU)<br>Jeff Geddes (BU)
-|Structural
+|Input data
 |
 |-valign="top"
-|Restructure source code folders
+|Dry deposition physical improvement
-|GCST
+|Chris Holmes (FSU)
-|Structural
+|Dry deposition
 |
 |-valign="top"
-|Archived CMIP6 Met Products for GEOS-Chem Input
+|TOMAS WRF-GC in regional Thailand simulation
-|Lee Murray (Rochester)
+|Win Trivitayanurak (Chulalongkorn U)
-|Science
+|Aerosols
 |
 |}
---[[User:Melissa Payer|Melissa Sulprizio]] ([[User talk:Melissa Payer|talk]]) 16:38, 14 May 2019 (UTC)
-----------------
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