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

Latest revision as of 16:59, 30 April 2024

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

Merged and awaiting release

See the links below for items merged and awaiting release.

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

Feature integration in progress

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

Feature	Contributor(s)	Model scope	Ease of implementation	Notes and References
Global continental chlorine (pCl and HCl) emissions	Bingqing Zhang (Georgia Tech) Pengfei Liu (Georgia Tech)	Emissions	Simple
Parameterization of SNA and OM dry size	Haihui Zhu (WashU)	Aerosols	Medium	Zhu et al., EGUsphere, submitted 2023. geos-chem PR #1902
New soil NOx parameterization	Yi Wang (U. Iowa) Jun Wang (U. Iowa)	Emissions	Medium	geos-chem issue #1288 Incorporates new met field TSOIL1
Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4	Lizzie Lundgren (Harvard)	GC-Classic	Medium	hemco issue #18
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 16:59, 30 April 2024

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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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-On this page we list the current priorities for GEOS-Chem development.  This list was compiled by the user Working Groups at the last [http://acmg.seas.harvard.edu/geos/meetings/2017/index.html International GEOS-Chem Meeting (IGC8)] in May 2017 and was updated in May 2018 following the release of v11-02 which included a number of these priorities. This list will be continuously updated based on code readiness and input from the Working Groups and the Steering Committee.
+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]].
-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.
+== Merged and awaiting release ==
-== List of priorities from IGC8 ==
+See the links below for items merged and awaiting release.
-The items listed below are in different stages of readiness and will be included in future versions of the model.
-=== Ready to go in ===
-The following updates are now being considered for inclusion into GEOS-Chem.
 {| border=1 cellspacing=0 cellpadding=5
 |-bgcolor="#CCCCCC"
-!width="400px"|Feature
+!width="300px"|Mergeable at any time
-!width="250px"|Submitted by
+!width="200px"|Version in development
-!width="100px"|Type
-!width="300px"|Status
-|-
-!colspan="4" bgcolor="#CCFFFF"|Transport updates
 |-valign="top"
-|[[Transport_Working_Group#Common_set_of_tracers_in_GEOS-Chem_and_GEOS|Common set of tracers in GEOS-Chem and GEOS]]
+|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
-|Transport WG<br>[[GCST]]
+|align="center"|'''[[GEOS-Chem 14.4.0]]'''
-|Benchmarking
-|
-*Ready to be added, ask GMAO
-|-
+|}
-!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
-|-valign="top"
+== Feature integration in progress ==
-|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
-|Sebastian Eastham (MIT)
-|Science
-|
-*Ready to be added
-|-
+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.
-!colspan="4" bgcolor="#CCFFFF"|Emissions updates
-|-valign="top"
+{| border=1 cellspacing=0 cellpadding=5
-|[[Volcanic_SO2_emissions_from_Aerocom#OMI-based_volcanic_emissions|OMI-based volcanic emissions 2005-2012]]
+|-bgcolor="#CCCCCC"
-|Cui Ge (U. Iowa)<br>Jun Wang (U. Iowa)
+!width="200px"|Feature
-|Science
+!width="200px"|Contributor(s)
-|
+!width="100px"|Model scope
-*Need to implement a fix to handle missing data for 2012/09 thru 2012/12.  We can do one of 2 things:
+!width="100px"|Ease of implementation
-**Create files with zero emissions for 2012/09 thru 2012/12.
+!width="300px"|Notes and References
-***But because data for 2013- is copied from 2012, this will mean that the last 3 months of the year have no volcano emissions.
-**Link to the existing volcano emsisions files for September thru December
 |-valign="top"
-|[[Mineral_dust_aerosols#Anthropogenic_PM2.5_dust_source_in_GEOS-Chem|Anthropogenic PM2.5 dust source]]
+|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
-|Sajeev Philip (Dalhousie)
+|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
-|Science
+|Emissions
+|Simple
 |
-*Need to fix an "under-the-hood" issue in HEMCO that causes 1200 Tg of dust to be emitted by this update.
 |-valign="top"
-|[[FINNv1_biomass_burning_emissions|FINN biomass burning emissions for 2014-2016]]
+|[https://github.com/geoschem/geos-chem/issues/1747 Parameterization of SNA and OM dry size]
-|Barron Henderson (US EPA)
+|Haihui Zhu (WashU)
-|Science
+|Aerosols
+|Medium
 |
-*Pending receipt of corrected data files
+*[https://egusphere.copernicus.org/preprints/2022/egusphere-2022-1292/ Zhu et al., EGUsphere, submitted 2023.]
+*[https://github.com/geoschem/geos-chem/pull/1902 geos-chem PR #1902]
 |-valign="top"
-|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#Discussion_of_LAI_Data_Sources|Update MODIS LAI fields for 2005-2016 using Yuan et al. (2011) ]]
+|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
-|Jenny Fisher (Wollongong) <br>Barron Henderson (US EPA)
+|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
-|Science
+|Emissions
+|Medium
 |
-*Will require reworking of LAI regridding in GEOS-Chem Classic and pre-processing land map data
+*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
+*Incorporates new met field TSOIL1
-|-
-!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
 |-valign="top"
-|Sea salt aerosol alkalinity
+|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
-|Qianjie Chen (UW)<br>Becky Alexander (UW)<br>Xuan Wang (Harvard)
+|Lizzie Lundgren (Harvard)
-|Science
+|GC-Classic
+|Medium
 |
-*UW version delivered to GCST (Nov 2017)
+*[https://github.com/geoschem/HEMCO/issues/18 hemco issue #18]
 |-valign="top"
-|VBS SOA option
+|Capture all trop and PBL height changes in budget diagnostics
-|Rokjin Park (SNU)
+|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
-|Science
+|Diagnostics
+|Medium
 |
-*Code has been implemented in the ancient v9-01-02 version.
+*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
-*Bringing this up to the current SOA model (simple SOA, complex SOA) will likely involve significant effort.
-|-
+|}
-!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
-|-valign="top"
+== Prioritized and in the queue ==
-|Oxidant fields from v10 for 2006-2012
-*3D chemical source for CO2, CO
-*OH for tagged CO & CH4
-|Dylan Jones (UofT)
-|Science
-|
-*Will make data files available on ftp site
-|-valign="top"
+Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
-|Africa nested-grid for GEOS-FP and MERRA-2
-|Eloise Marais (U. Birmingham)
-|Science
-|
-*Delivered to GCST (Dec 2017)
-*Could be implemented with Jiawei Zhuang's FlexGrid
-|-valign="top"
+{| border=1 cellspacing=0 cellpadding=5
-|West Africa nested-grid for GEOS-FP
+|-bgcolor="#CCCCCC"
-|Mat Evans (York)<br>Eleanor Morris (York)
+!width="200px"|Feature
-|Science
+!width="200px"|Contributor(s)
-|
+!width="100px"|Model scope
-*Could be implemented with Jiawei Zhuang's FlexGrid
+!width="100px"|Ease of implementation
+!width="100px"|Delivery status
+!width="300px"|Notes and References
 |-valign="top"
-|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
+|ALK4 & R4N2 chemistry
-|Becky Alexander (UW)
+|Jared Brewer (UMN)
-|Science
+|Chemistry
+|TBD
+|Not delivered
 |
+*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
+*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., 2023.]
 |-valign="top"
-|Arsenic simulation
+|Mass flux regridding fix in MAPL
-|Shiliang Wu (MT)
+|Tom Clune (GMAO)<br>Seb Eastham (MIT)
-|Science
+|GCHP input regridding
+|Medium
 |
-|-
-!colspan="4" bgcolor="#CCFFFF"|Structural updates
-|-valign="top"
-|Updated flux diagnostics
-|Chris Holmes (Florida State)<br>[[GCST]]
-|Structural/<br>Benchmarking
 |
-*Work has not yet begun
+*[https://github.com/geoschem/GCHP/issues/377 GCHP Issue #377]
+*'''Currently on hold, as the submitted update results in zero diff'''
 |-valign="top"
-|Benchmark of stratospheric simulation
+|New version of CEDS at 0.1 deg
-|Dylan Jones (U. Toronto)
+|Dandan Zhang (WashU)
-|Benchmarking
+|Emissions
+|Simple
+|Delivered
 |
-*1-yr benchmarks for GEOS-Chem v11-01d and later include comparisons with OSIRIS O3
+*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
-*Waiting on OSIRIS NO2 data
+*'''Currently on hold while an issue with seasonality in the new CEDS data is being investigated by the authors.'''
-*Waiting on comparisons with ACE-FTS data
-|-valign="top"
+|}
-|Add total column O3 to benchmarks
-|Chris Holmes (FSU)<br>[[GCST]]
-|Benchmarking
-|
-*Deferred until v11-03
-*Also note: GCST plans on migrating benchmark plotting code from IDL to Python in v11-03
-|-valign="top"
+== Ready to go in ==
-|ObsPack diagnostic as netCDF replacement for planeflight_mod.F
-|Andy Jacobson (NOAA/ESRL)
-|Structural
-|
-*Delivered to GCST (May 2017)
-|-valign="top"
+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.
-|[[GEOS-Chem_v11-02#Discrepancies_in_single-stage_simulations_vs_multi-stage_simulations|Updates to eliminate differences between single and multi-segmented GEOS-Chem runs]]
-|[[GCST]]<br>Christoph Keller
-|Bug fix<br>Structural
-|
-|-valign="top"
+{| border=1 cellspacing=0 cellpadding=5
-|Further structural updates to facilitate interfacing GEOS-Chem with external models (e.g. WRF, CAM, CESM)
+|-bgcolor="#CCCCCC"
-|[[GCST]]
+!width="200px"|Feature
-|Structural
+!width="200px"|Contributor(s)
-|
+!width="100px"|Model scope
-*Ongoing
+!width="100px"|Delivery status
+!width="300px"|Notes and References
-|-
-!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
 |-valign="top"
-|[[FlexGrid|FlexGrid: Use HEMCO to read met fields and enable nested simulations over any custom domains]]
+|KORUS-AQ emissions for East Asia (as an option)
-|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
+|Katie Travis (NASA)
-|Structural
+|Emissions
+|Simple
 |
-*Delivered to GCST (Oct 2016)
-*Code is ready, but we were waiting for a stable v11-02 release before proceeding
-*FlexGrid will facilitate adding new nested-grids or reading new met field products from disk
 |-valign="top"
-|[[ISORROPIA_II#Investigating_persistent_noise_observed_in_ISORROPIA_output|Update ISORROPIA from v2.0 to v2.2, in order to remove persistent noise in output]]
+|Geologic emission of ethane and propane
-|Seb Eastham (Harvard)
+|Matthew Rowlinson and Mat Evans(York)
-|Science
+|Emissions
+|Delivered<br>Jan 2023
 |
-*ISORROPIA v2.2 code is already present in v11-02, but is deactivated by default.
+*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
-*It can be activated by setting a single <tt>#ifdef</tt> switch.
 |-valign="top"
-|Archival of roughness length for temperature z0T
+|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
-|[[GCST]]
+|Joey Lam(CUHK)<br>Amos Tai (CUHK)
-|Met processing
-|
-*Work has not yet begun
-|}
---[[User:Lizzie Lundgren|Lizzie Lundgren]] ([[User talk:Lizzie Lundgren|talk]]) 13:38, 1 June 2018 (UTC)
-=== Almost there (< 6 months) ===
-{| border=1 cellspacing=0 cellpadding=5
-|- bgcolor="#cccccc"
-!width="400px"|Item
-!width="250px"|Author(s)
-!width="100px"|Type
-!width="300px"|Status
-|-
-!colspan="4" bgcolor="#CCFFFF"|Transport updates
-|-valign="top"
-|[https://www.geosci-model-dev-discuss.net/gmd-2017-125/ GEOS resolution & subgrid convection]
-|Karen Yu (Harvard)
 |Science
+|Delivered<br>Feb 2021
 |
-*To be installed by Bob Yantosca (Harvard), tested by Tailong He (Toronto)
+*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
-*Work to begin after v11-02 release
-|-
-!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
 |-valign="top"
-|N2O5 hydrolysis updates
+|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
-|Viral Shah (UW)
+|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
-|Science
+|Emissions
+|Delivered<br>Jul 2021
 |
-*Defer until paper is submitted (Summer 2018)
+*Data involves many files- need to think about temporal frequency
-*Code from v10 (SMVGEAR) needs to be translated to v11 (FlexChem); this may take some effort
 |-valign="top"
-|H2 chemistry in UCX
+|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
-|Chris Holmes (FSU)
+|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
-|Science
+|Chemistry
+|Delivered<br>June 2023
 |
-*Defer until paper is submitted
+*[https://acp.copernicus.org/articles/22/12367/2022/acp-22-12367-2022.html Pérez-Peña, M.P. et al., ACP, 2022.]
-*Estimate Fall 2018 or sooner
+*Implemented in v12.5, needs to be brought up to current version
 |-valign="top"
-|Updated chlorine chemistry
+|DMS Chemistry
-|Xuan Wang (Harvard)
+|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
-|Science
+|Chemistry
+|Not delivered
 |
-*Defer until the paper is submitted
 |-valign="top"
-|[[Chemistry_Issues#Correcting_ozone_from_the_height_of_the_lowest_model_level_to_the_surface|ND49 timeseries diagnostic for correcting ozone from the height of the lowest model level to 10m]]
+|Organic acids (RCOOH)
-|Katie Travis (MIT)
+|Katie Travis (NASA)
-|Structural
+|Chemistry
+|Not delivered
 |
-*Defer until the paper is submitted
 |-valign="top"
-|OH + NO2 rate update
+|Improve carbon & nitrogen conservation in reactions
-|Barron Henderson (EPA)
+|Kelvin Bates (Harvard)
-|Science
+|Chemistry
+|Not delivered
 |
 |-valign="top"
-|[[Chemistry_Issues#Script_for_evaluating_carbon_balance|Script for checking N, C, etc. balance in chemistry mechanism]]
+|Blowing snow sea salt in TOMAS
-|Barron Henderson (EPA)
+|Betty Croft (Dalhousie)
-|Software
+|Aerosols
-|Barron Henderson wrote:
+|Not delivered
-*The script for checking the carbon balance exists and works. Ideally, we would move some of the structures into the KPP files to codify them instead of storing them in the script itself. I currently have the script attached to an Evernote note (linked below). This would be less than 6 months.  [https://www.evernote.com/shard/s315/sh/82219b0a-0031-4f3c-a9ca-401964d3b4c5/7af8ad1c743543fa20bf91201ecab2f0
- See this link]
-|-valign="top"
-|Aromatics and dicarbonyl chemistry
-|William Porter (MIT)<br>Tzung-May Fu (PKU)
-|Science
 |
 |-valign="top"
-|Document chemical mechanism in KPP file
+|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
-|Mat Evans (York)
+|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
-|Structural
+|Hg simulation
+|Not delivered
 |
 |-valign="top"
-|Diurnal variability for NH3
+|WRF-GC Hg simulation
-|Henze group
+|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
-|Science
+|Hg simulation<br>WRF-GC
+|Not delivered
 |
 |-valign="top"
-|Uptake of HNO3 onto coarse-mode sea salt
+|Updated HgII gas-partical partitioning
-|Prasad Kasibhatla (Duke)
+|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
-|Science
+|Hg simulation
+|Not delivered
 |
+*Should be option, not default
 |-valign="top"
-|Photolysis of NITs
+|Dry deposition to F90 (readability)
-|Prasad Kasibhatla (Duke)
+|Chris Holmes (FSU)
-|Science
+|Dry deposition
+|Not delivered
 |
-|-
+|}
-!colspan="4" bgcolor="#CCFFFF"|Emissions updates
-|-valign="top"
+== Almost there (< 6 months) ==
-|Grid-independent lightning NOx emissions (3-hourly)
-|Lee Murray (Rochester)
-|Science
-|
-*Data has not yet been transferred to GCST
-|-valign="top"
+Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
-|Grid-independent dust emissions (hourly)
-|David Ridley (MIT)
-|Science
-|
-*Data has not yet been transferred to GCST
-|-valign="top"
+{|border=1 cellspacing=0 cellpadding=5
-|Grid-independent biogenic emissions (hourly)
+|- bgcolor="#cccccc"
-|Jintai Lin (PKU)
+!width="200px"|Feature
-|Science
+!width="200px"|Contributor(s)
-|
+!width="100px"|Model scope
-*Data has not yet been transferred to GCST
+!width="420px"|Notes and References
 |-valign="top"
-|Grid-independent sea salt emissions (hourly)
+|PPN+hv, PPN+OH
-|Jintai Lin (PKU)
+|Robert Ryan (UCL)
-|Science
+|Chemistry
 |
-*Data has not yet been transferred to GCST
 |-valign="top"
-|EPA-derived BC/OA emissions over US (1990-2012)
+|MBO
-|David Ridley (MIT)<br>Chi Li (Dalhousie)
+|Michael Vermeuel (UMN)
-|Science
+|Chemistry
 |
-*Emissions are available but need to be formatted properly.
-*Could be ready by Fall-Winter 2018, depending on D. Ridley's availability
 |-valign="top"
-|EPA NEI2011 Version EK
+|Initial conditions for CH4 correcting background and stratospheric biases
-|Zitely Tzompa-Sosa (CSU)<br>Emily Fischer (CSU)
+|Todd Mooring (Harvard)
-|Science
+|Methane simulation
 |
-*Estimate Late 2018 or sooner
 |-valign="top"
-|GFAS biomass burning emissions
+|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
-|Mat Evans (York)
+|Bob Yantosca (Harvard)
-|Science
+|Aerosols<br>Structural
-|Mat Evans wrote:
-*For the sake of the documentation and the wiki I think we should replicate the standard benchmark year on our system, and then switch on the GFAS emissions instead of the GFED and then have the GFAS emissions distributed by hieight.  We can do that and then prepare some plots for the documentation.  Estimate summer 2018.
-|-valign="top"
-|[[MASAGE_NH3_inventory|MASAGE inventory in HEMCO as default]]
-|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
-|Science
 |
-*MASAGE data is already available.
+*Ongoing
-*GCST would need assistance from the user community to prepare HEMCO configuration files such that we do not double-count agricultural NH3 from MASAGE and other inventories.  This has been the main delay.
-*F. Paulot has left the GC community.
 |-valign="top"
-|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
+|Re-binning of off-line sea salt and dust for use in TOMAS
-|Amos Tai (CUHK)
+|Betty Croft (Dalhousie)
-|Science
+|Aerosols
 |
-*Waiting on data
 |-valign="top"
-|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
-|Fabien Paulot (NOAA/GFDL)
+|Betty Croft (Dalhousie)
-|Science
+|Aerosols
 |
-*Data files delivered to GCST (Jan 2016)
-*Needs to be implemented via HEMCO, which is the primary delay
 |-valign="top"
-|Injection height for fire emissions
+|ML algorithms for bulk aerosols
-|Juliet Zhu (CSU)<br>Emily Fischer (CSU)
+|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
-|Science
+|Aerosols
 |
-*Code was available in pre v9-02 (HEMCO)
-*Code may have been ported to v11-02a but this option was not activated
-|-
-!colspan="4" bgcolor="#CCFFFF"|Surface fluxes and land usage updates
 |-valign="top"
-|Land cover module: Harmonized biosphere-atmosphere exchange and implementing CLM or manual land cover change experiments
+|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
-|Jeff Geddes (BU)
+|Shixian Zhai (Harvard)
-|Science
+|Aerosols
 |
-*Has been added into v9-02 (pre-HEMCO)
-*Bringing this up to v11 will probably need significant effort
-*BU group/GCST will meet summer 2018 to discuss implementation
 |-valign="top"
-|Carbon bottom up fluxes: anthro, ocean, land
+|Updates to Hodzic SOA scheme
-|Kevin Bowman (JPL)
+|Jared Brewer (Harvard)
-|Science
+|Aerosols
 |
 |-valign="top"
-|Online O3-LAI coupling in GEOS-Chem
+|Automated reduction in isoprene scheme
-|Amos Tai (CUHK)
+|Dan Westervelt (Lamont-Doherty)
-|Science
+|Aerosols
 |
-|-
-!colspan="4" bgcolor="#CCFFFF"|Wet deposition updates
 |-valign="top"
-|Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc.
+|Brown carbon chemsitry
-|Sarah Safieddine (MIT)<br>GCST
+|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
-|Science
+|Aerosols
 |
 |-valign="top"
-|Wet scavenging in mixed-phase clouds
+|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
-|Bo Zhang (NIA/NASA Langley)
+|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
-|Science
+|Convection
 |
-*Defer until paper is published
-*Estimate Fall 2018
-|-
-!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
 |-valign="top"
-|AMAP/UNEP 2035 for Hg simulation
+|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
-|Helene Angot (MIT)
+|Jintai Lin (PKU)
-|Science
+|Emissions
 |
-*Data is available, but has not been transferred to GCST yet
+*Horizontal resolution: 5km, temporal resolution: JJA mean
+*monthly data will be available at a later stage; please contact us
 |-valign="top"
-|Radon emission update
+|Updated biomass burning emission factors and species
-|Bo Zhang (NIA/NASA Langley)
+|Tess Carter (MIT)
-|Science
+|Emissions
 |
-*Defer until paper is published
-*Estimate Fall 2018
 |-valign="top"
-|[[POPs simulation#PCB simulation|PCB simulation]]
+|Updated offline sea salt emissions
-|Colin Thackray (Harvard)<br>Carey Friedman (formerly MIT)<br>Helen Amos (formerly Harvard)
+|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
-|Science
+|Emissions
 |
 |-valign="top"
-|New EDGAR sectoral inventory for Hg (1970-2012)
+|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
-|Amanda Giang (MIT)
+|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"
-|Archive GISS met fields from RCP scenarios for community
+|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
-|Lee Murray (Rochester)
+|Bob Yantosca (Harvard)
-|Science
+|Model performance
 |
+*Ongoing (will be done as time allows)
-|-
-!colspan="4" bgcolor="#CCFFFF"|Structural updates
 |-valign="top"
-|Clean up SOA diagnostics
+|Assess memory leak in GCHP
-|GCST
+|Killian Murphy (York)
-|Structural
+|Model performance
 |
-*GCST has implemented many existing SOA diagnostics in netCDF
+*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.
-*GCST would need help from the community to streamline these diagnostics
 |-valign="top"
-|Calculation consistency throughout code: surface area, HGF (via species database)
+|Hybrid MPI-OpenMP in GCHP
-|GCST
+|Seb Eastham (MIT)<br>Killian Murphy (York)
-|Structural
+|Model performance
 |
 |-valign="top"
-|Harmonizing Henry's Law coefficients across wet and dry deposition
+|Improve pressure handling in GCHP advection
-|[[GCST]]
+|Seb Eastham (MIT)<br>Yuanjian Zhang (WashU)
-|Science
+|GCHP
 |
-*Work not started yet. Will need input from the community.
-|-
-!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
 |-valign="top"
-|CESM-GC offline coupling in standard model + benchmark
+|Use ExtData2G as default GCHP input module
-|Rokjin Park (SNU)<br>Daniel Rothenberg (MIT)
+|Lizzie Lundgren (Harvard)
-|Science
+|GCHP
-|
+|Will replace ExtData.rc with yaml file
-*Rokjin Park says code is ready
-*Waiting on clarification in which version this is implemented in.
 |}
---[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 19:16, 23 May 2018 (UTC)
+== Over the horizon (6-12 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 in the 6-12 months timeframe.
 {| border=1 cellspacing=0 cellpadding=5
 |- bgcolor="#cccccc"
-!width="400px"|Item
+!width="200px"|Feature
-!width="250px"|Author(s)
+!width="200px"|Contributor(s)
-!width="100px"|Type
+!width="100px"|Model scope
-!width="300px"|Status
+!width="420px"|Notes and References
 |-valign="top"
-|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
+|Snow / Icy Bromine
-|Maria Zatko (UW)<br>Becky Alexander (UW)
+|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
-|Science
+|Chemistry
 |
-*Delivered to GCST (Nov 2017)
-*Needs to be added as a HEMCO extension, but converting from ancient v9-01-01 code may take significant effort.
 |-valign="top"
-|MEIC emissions over China (2000-2015)
+|Monoterpene oxidation scheme
-|Lu Shen (Harvard)<br>Melissa Sulprizio (Harvard)
+|Jessica Haskins (MIT)
-|Science
+|Chemistry
 |
-*Defer until MEIC paper is published
 |-valign="top"
-|GISS-GC (ICECAP/GCAP2) in standard model + benchmark
+|Fire related VOCs including furans
-|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+|Lu Hu (UMT)<br>Lixu Jin (UMT)
-|Science
+|Chemistry
-|Lee Murray replied:
-*"I would say 6-12 months to be safe, but the goal is to have it done by the end of summer 2018.  There will actually be very minimal updates to GEOS-Chem; most of the updates are to modify the GISS model to output MERRA2-like data, to facilitate integration with GCHP and future updates to the CTM."
-|-valign="top"
-|GISS-GC GCHP
-|Lee Murray (Rochester)<br>Pengfei Liu (Harvard)<br>Yang Li (Harvard)
-|Science
 |
-*Rochester and Harvard groups are coordinating, to avoid duplication of effort
 |-valign="top"
-|CESM-GC GCHP
+|Extension of UCX into the mesosphere
-|Seb Eastham (MIT)
+|Seb Eastham (MIT)<br>Eric Fleming (NASA)
-|Science
+|Chemistry
 |
-*Seb Eastham is now the lead developer.
-*Estimate late 2018 or early 2019; validation will take time
 |-valign="top"
-|Additional modifications for [[FlexChem]], including:
+|Methane flux ingestion
-*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+|Eloise Marais (UCL)
-*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+|Chemistry
-|[[GCST]]
-|Structural
 |
-*Mike Long, who was the principal proponent behind these updates, has since left the GC community.
-*We are not sure who will take this over
 |-valign="top"
-|Dynamic fire modeling/prediction
+|Dust non-sphericity impacts on surface chem and optical properties
-|Shiliang Wu (MNT)
+|Inderjeet Singh (WashU)
-|Science
+|Aerosols
 |
 |-valign="top"
-|Interannually varying ocean model BCs for Hg from ocean model
+|Size-resolved stratospheric aerosol
-|Colin Thackray (Harvard)
+|Seb Eastham (MIT)
-|Science
+|Aerosols
 |
 |-valign="top"
-|PAH & PFCA simulations
+|Extend aerosol settling
-|Peter Ivatt (York)<br>Mat Evans (York)<br>Noelle Selin (MIT)<br>Colin Thackray (Harvard)
+|Eloise Marais (UCL)
-|Science
+|Aerosols
 |
 |-valign="top"
-|CH4 in full chemistry simulation
+|Stratospheric aerosol APM
-|Seb Eastham (Harvard)
+|Fangqun Yu (SUNY)
-|Science
+|Aerosols
 |
 |-valign="top"
-|Standard future land use maps (PFT, LAI) for RCP/CMIP6 simulations
+|Plume-in-grid model
-|Colette Heald (MIT)<br>Loretta Mickley (Harvard)
+|Hongwei Sun (Harvard)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Archive GISS met fields from CMIP6 scenarios for community
+|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
 |Lee Murray (Rochester)
-|Science
+|Emissions
 |
 |-valign="top"
-|Updates to cold-temperature deposition
+|Seb aircraft emissions beyond recent 2019 update
-|Lyatt Jaegle (UW)
+|Seb Eastham (MIT)
-|Science
+|Emissions
 |
 |-valign="top"
-|Simple parameterization for CO2-O3 dependence of stomatal resistance
+|FRP-based fire emsisions for eastern US at 0.2	deg
-|Amos Tai (CUHK)
+|Charlie Fite (FSU)
-|Science
+|Emissions
 |
 |-valign="top"
-|NH3 emissions over China
+|Hg iodine chemistry
-|Lin Zhang (PKU)
+|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
-|Science
+|Hg simulation
 |
 |-valign="top"
-|Using GEOS-Chem within GEOS-5
+|Hg simulation in GCHP
-|Loretta Mickley (Harvard)
+|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
-|Science
+|Hg simulation
 |
 |-valign="top"
-|Carbon cycle outputs in xCO2, xCH4 as a diagnostic
+|Update Hg ocean and soil boundary conditions for consistency with new chemistry
-|Beata Bukosa (Wollongong)<br>Dylan Jones (UofT)
+|Yanxu Zhang (Nanjing U.)
-|Science
+|Hg simulation
 |
 |-valign="top"
-|Seasonal EMEP emissions back to 1980
+|Dry deposition diagnostics by land cover
-|Mat Evans (York)
+|Holly Nowell (FSU)
-|Science
+|Diagnostics
 |
 |-valign="top"
-|Updates to NO2 dry deposition
+|Dry deposition process diagnostics
-|Brian Boys (Dalhousie)
+|Holly Nowell (FSU)
-|Science
+|Diagnostics
 |
 |-valign="top"
-|APM update and integration with most recent GEOS-Chem version
+|Isotope simulation for CO and CH4 in GCHP
-|Gan Luo (SUNY Albany)
-|Structural
-|
-|-valign="top"
-|Cosmogenic tracer production
 |Lee Murray (Rochester)
-|Science
+|Carbon simulation
 |
 |-valign="top"
-|Explore resolution-consistent dust emissions
+|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
-*Make high-res concentrations or mass fluxes available offline, implement in met field processing
+|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
-|David Ridley (MIT)<br>GCST<br>Nested Model WG
+|Emissions<br>CH4 simulation
-|Science
-|
-|-valign="top"
-|Dust emissions at nested-grid resolutions
-|Yuxuan Wang (U. Houston)<br>Jun Wang (U. Iowa)
-|Science
-|
-*Check for overlap with resolution-consistent dust emissions above
-|-valign="top"
-|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Update SO2 scavenging in convective updrafts for consistency]]
-|Duncan Fairlie (NASA/LARC)
-|Science
-|
-|-valign="top"
-|Sea salt emission from sea ice
-|Jiayue Huang (UW)
-|Science
 |
 |-valign="top"
-|[[GEOS-Chem_species_units|Uniformity of units]]
+|Modularization of aerosols code for interface with GOCART in GEOS
-|[[GCST]]
+|Christoph Keller (GMAO)
 |Structural
-|Lizzie Lundgren wrote:
-*We are not planning on resuming work to unify units in GEOS-Chem anytime soon. Any changes to units in the near future would be for better compatibility with other models, although none are currently planned. However, user consensus on preferred units would still be helpful to move the conversation forward.
-|}
---[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 19:42, 24 May 2018 (UTC)
-=== Longer term (12-24 months)===
-{| border=1 cellspacing=0 cellpadding=5
-|- bgcolor="#cccccc"
-!width="400px"|Item
-!width="250px"|Author(s)
-!width="100px"|Type
-!width="300px"|Status
-|-valign="top"
-|GCHP stretched grid
-|Jiawei Zhuang (Harvard)
-|Science
 |
 |-valign="top"
-|1/8 degree nested-grid simulations with GEOS-FP
+|Improve load balancing in GCHP
-|Nested Model WG
+|Seb Eastham (MIT)
-|Science
+|Model performance
 |
-*Wait for more interest
 |-valign="top"
-|Embedding GEOS-Chem into CESM
+|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
-|Jean-Francois Lamarque (NCAR)
+|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
-|Science
+|Transport
 |
-*NOTE: Seb Eastham is already working on this
 |-valign="top"
-|Adjoint of carbon cycle simulation in GCHP
+|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
-|Kevin Bowman (JPL)
+|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
-|Science
+|Transport
 |
 |-valign="top"
-|Isoprene chemistry v2 (new Caltech update)
+|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
-|Kelvin Bates (Caltech)
+|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
-|Science
+|Transport
 |
 |-valign="top"
-|Contemporary land cover: developing historical and updated GEOS-Chem land cover maps based on satellite remote sensing
+|MAPL version 3
-|Jeff Geddes (BU)
+|Lizzie Lundgren (Harvard)
-|Science
+|GCHP
-|
+|Will include History wildcard handling in GCHP
-|-valign="top"
-|Farquhar-Ball-Barry model to calculate stomatal resistance
-|Amos Tai (CUHK)<br>Jeff Geddes (BU)
-|Science
-|
 |-valign="top"
-|Impacts of chemistry on ecosystem/carbon cycle
+|Migrate benchmark meteorology from MERRA2 to GEOS-IT
-|Kevin Bowman (JPL)<br>Anthony Bloom (JPL)
+|GCST
-|Science
+|Benchmarking
 |
-|-valign="top"
+|}
-|Improved lightning emission scheme
-|Lee Murray (Rochester)
-|Science
-|
-|-valign="top"
+== Longer term (12-24 months)==
-|Resolution-independent lightning NOx
-|Lee Murray (Rochester)
-|Science
-|
-|-valign="top"
+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.
-|Bidirectional NH3 emissions
-|Juliet Zhu (CSU)
-|Science
-|
-|-valign="top"
+{| border=1 cellspacing=0 cellpadding=5
-|Country-based weekday/weekend variability for EDGAR 4.2
+|- bgcolor="#cccccc"
-|Lee Murray (Rochester)<br>Christoph Keller (Harvard)
+!width="200px"|Feature
-|Science
+!width="200px"|Contributor(s)
-|
+!width="100px"|Model scope
+!width="420px"|Notes and References
 |-valign="top"
-|Update keytone photolysis
+|Updates to Aromatic chemistry
-|Jared Brewer (CSU)<br>Emily Fischer (CSU)
+|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Small alkyl nitrates
+|Nitrate photolysis
-|Jenny Fisher (Wollongong)
+|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
-|Science
+|Chemistry
 |
 |-valign="top"
-|YIBS-GC chemistry-biosphere-fire coupling
+|In aerosol chemistry Halogens
-|Loretta Mickley (Harvard)<br>Xu Yue (IAP)
+|Mat Evans (York)<br>Hansen Cao (CU Boulder)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Nitrogen-LAI coupling
+|Benchmark box model of GC Chemistry
-|Lin Zhang (PKU)<br>Amos Tai (CUHK)
+|Katie Travis (NASA)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Implementing humidity/VPD dependence of dry deposition
+|Alkyl nitrates Alk7, PHAN
-|Jennifer Murphy (U. Toronto)
+|Katie Travis (NASA)
-|Science
+|Chemistry
 |
 |-valign="top"
-|SO2 wet scavenging
+|Add stratospheric ozone species to full-chemistry simulations
-|Duncan Fairlie (NASA Langley)
+|Lee Murray (Rochester)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Heterogeneous sulfate production
+|Perchlorate chemistry
-|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+|Yuk Chun Chan (UWAB)
-|Science
+|Chemistry
 |
 |-valign="top"
-|MOSAIC implementation
+|Explicit heterogeneous sulfate chemistry
-|Sebastian Eastham (Harvard)
+|Katie Travis (NASA)<br>Becky Alexander (UT)
-|Science
+|Chemistry
 |
 |-valign="top"
-|Particle size climatology
+|HOx and ozone "emissions" from lightning as option in model to play with
-|Fangqun Yu (SUNY Albany)
+|Jingqiu (Alaska)<br>Lee Murray (Rochester)
-|Science
+|Emissions
 |
 |-valign="top"
-|Sea salt/dust size distribution
+|Sea salt aerosol from sea ice leads
-|David Ridley (MIT)<br>Colette Heald (MIT)
+|Hannah Horowitz (U. Illinois)
-|Science
+|Emissions
 |
 |-valign="top"
-|Updates to GTMM
+|Drought-stress algorithm
-|Rebecca Stern (Harvard)
+|Wei Li (U. Houston)
-|Science
 |
-|-valign="top"
-|Tracer transport ocean
-|Chris Holmes (FSU)
-|Science
 |
 |-valign="top"
-|Include Hg in full chemistry simulation
+|Biomass burning injection height profiles
-|Noelle Selin (MIT)
+|Inderjeet Singh (WashU)
-|Science
+|Emissions
 |
 |-valign="top"
-|Goddard seasonal weather prediction in GCHP
+|OCIM integration
-|Kevin Bowman (JPL)
+|Chris Holmes (FSU)<br>Lee Murray (Rochester)
-|Science
 |
-|-valign="top"
-|Climate index diagnostics (drought, etc.)
-|Chemistry-ecosystems-climate WG
-|Structural
 |
 |-valign="top"
-|Joint CO/CO2/CH4 simulation
+|Updating landcover products in GEOS-Chem
-|Nicholas Deutscher (U. Wollongong)
+|Chris Holmes (FSU)<br>Jeff Geddes (BU)
-|Science
+|Input data
 |
 |-valign="top"
-|Carbon coupling: oceans and terrestrial models
+|Dry deposition physical improvement
 |Chris Holmes (FSU)
-|Science
+|Dry deposition
 |
-*Ocim-pure physical transport, ECCO-Darwin ocean biogeochemistry
 |-valign="top"
-|DMS oxidation scheme updating
+|TOMAS WRF-GC in regional Thailand simulation
-|Qianjie Chen (UW)<br>Chemistry WG
+|Win Trivitayanurak (Chulalongkorn U)
-|Science
+|Aerosols
-|
-|-valign="top"
-|Limiting NH3 uptake due to OA
-|Rachel Silvern (Harvard)
-|Science
 |
 |}
---[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 15:32, 23 May 2018 (UTC)