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

Revision as of 13:36, 26 June 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 14.5.0

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
ALK4 & R4N2 chemistry	Jared Brewer (UMN)	Chemistry	Simple	geos-chem PR #1625 Brewer, J.F. et al., J. Geophys. Res., 2023.
New soil NOx parameterization	Yi Wang (Iowa) Jun Wang (Iowa)	Emissions	Medium	geos-chem issue #1288 Incorporates new met field TSOIL1
Fix pressure handling in HEMCO standalone	Melissa Sulprizio (Harvard)	HEMCO	Simple	HEMCO issue #277
Fix obspack - not working in 14.4.0	Bob Yantosca (Harvard)	Diagnostics	Medium	geos-chem issue #2328
Horizontal flux regridding fix in MAPL	Tom Clune (GMAO)	GCHP	Medium	MAPL PR #36
Cloud-J 7.7.2 for greater flexibility in external models	Lizzie Lundgren (Harvard)	Photolysis	Medium	Cloud-J PR #17 geos-chem PR #2342 More Cloud-J PRs in progress
GCHP run directory improvements for mass flux, stretched grid, and GEOS-IT runs	Lizzie Lundgren (Harvard)	GCHP	Medium	geos-chem PR #2326
Fixes for GEOS-Chem 14.4 in CESM	Haipeng Lin (Harvard) Lizzie Lundgren (Harvard)	CESM	Medium	geos-chem PR #2348 geos-chem PR #2349 More PRs in progress

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
New version of CEDS at 0.1 deg	Dandan Zhang (WashU)	Emissions	Simple	Delivered June 2024	geos-chem issue #1745
Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4	Lizzie Lundgren (Harvard)	GC-Classic	Medium		HEMCO issue #18

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 Refereneces
Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol	Camilo Serrano (McGill) Andreas Zuend (McGill)	Aerosols	Not delivered
Extend aerosol settling	Eloise Marais (UCL)	Aerosols	Not delivered
Comment back in Ca, Mg, and K cations in aerosol thermo (HETP)	Becky Alexander (UW)	Aerosols	Not delivered
Seasalt aerosol from sea ice leads (2002-2011)	Hannah Horrowitz (UIUC)	Aerosols	Not delivered	Offline and online, ready to go in HEMCO (optional in addition to existing seasalt emissions)
P/L species should not contribute to the error norm	Obin Sturm (USC)	Chemistry	Not delivered
Additional 6 peroxynitrates (many PANs like species); improve ALK4 & add ALK6	Katie Travis (NASA LARC)	Chemistry	Not delivered
Monoterpene oxidation more species & oxidation products	Kevin Bates (CU Boulder)	Chemistry	Not delivered
PPN photolysis	Eloise Marais (UCL)	Chemistry	Not delivered
Hlobal organic N dep from various emissions; nitrate aromatics updates	May Fu (SUSTech)	Chemistry + Deposition	Not delivered
ALK4 from biogenic vs anthro	Jared Brewer (UMN)	Chemistry	Not delivered
Dry deposition to F90 to improve readability	Chris Holmes (FSU)	Dry Deposition	Not delivered
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange	Joey Lam (CUHK) Amos Tai (CUHK)	Dry deposition	Delivered Feb 2021	geos-chem PR #629
FRP-based fire emissions for eastern US at 0.2 (2019-2020)	Chris Holmes (FSU)	Emissions	Not delivered
China agriculture NH3 emissions	Amos Tai (CUHK)	Emissions	Not delivered
T-dependent anthropogenic VOCs	May Fu (SUSTech)	Emissions	Not delivered	Option. Requires processing existing anthropogenic VOC emissions to generate offline emissions to read in. Parameterised for China.
New source functions for transport tracers beryllium-7 and beryllium-10	Minjie Zheng (ETH)	Emissions	Not delivered	https://zenodo.org/records/8372652
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100	Yang Li (Baylor U) Loretta Mickley (Harvard)	Emissions	Delivered	Data involves many files- need to think about temporal frequency
Australian emissions	Stephen MacFarlane (Wollongong) Jenny Fisher (Wollongong)	Emissions	Not delivered
Hg geogenic emissions (volcanic, rock weathering)	Eric Roy (MIT)	Emissions	Not delivered
Hg biomass burning - FINN2.5 & GFED4	Eric Roy (MIT)	Emissions	Not delivered
BCC-GC online	Lin Zhang (PKU)	External Model	Not delivered
GC-YIBS with online fire emissions	Xu Yue (NUIST) Hong Liao (NUIST)	External Model	Not delivered
GISS-GC offline (GCAP)	Lee Murray (Rochester)	GCAP	Not delivered
Archived TCR-2 OH fields for carbon simulations	Kazu Miyazaki (JPL)	Input data	Not delivered	This will be the default OH, but users will have the option of selecting other OH fields

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
Capture all trop and PBL height changes in budget diagnostics	Chris Holmes (FSU) Lizzie Lundgren (Harvard)	Diagnostics	geos-chem PR 2103
Dust non-sphericity impacts on optical properties	Inderjeet Singh (WashU)	Aerosols
Fixes to stratospheric aerosol settling	Connor Barker (UCL) Eloise Marais (UCL)	Aerosols
DMS chemistry in v14	Linia Tashmim (UCR) Will Porter (UCR)	Chemistry
KPP standalone + 3D Interface	Obin Sturm (USC)	Chemistry
Load balancing in chemistry solver (GCHP)	Zhouran (Jordan) Sun (WashU)	Chemistry + Performance
UCX chemistry in mesosphere (GCHP/GCClassic)	Helena McDonald (MIT)	Chemistry
Updated aromatic oxidation	Stephen MacFarlane (Wollongong) Jenny Fisher (Wollongong)	Chemistry
MCO3 uptake by cloud forming MP; leading to lower PAN	Laura Yang (Harvard)	Chemistry
Implement isotope simulation for CH4 in the carbon simulation	Lee Murray (Rochester)	Chemistry	Will have to change negative emissions from soil to a first-order loss process
Active mesospheric chemistry	Helena McDonald (MIT) Seb Eastham (ICL)	Chemistry
Documentation for adding additional aerosol species	Connor Barker (UCL)	Documentation
Column diagnostics	Lizzie Lundgren (Harvard) Viral Shah (GMAO)	Diagnostics
TOMAS rate diagnostics -- improve performance	Betty Croft (WashU/Dal)	Diagnostics + Performance
Archive gamma values from heterogeneous chemistry	Bob Yantosca (Harvard)	Diagnostics
RRTMG Documentation	GCST	Documentation
Canopy Physics Model	Sam Silva (MIT)	Dry Deposition
Dry deposition diagnostics by land cover	Holly Nowell (FSU) Chris Holmes (FSU)	Dry Deposition
Dry deposition process diagnostics	Holly Nowell (FSU) Chris Holmes (FSU)	Dry Deposition
Biomass burning for TOMAS	Nicole June (CSU)	Emissions + Microphysics
Historic biomass burning (1750-2010)	Pengfei (Gtech)	Emissions
Rice methane emissions	Zichong Cheng (Harvard)	Emissions+ Carbon simulation
Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.)	Katie Travis (NASA) Kelvin Bates (CU Boulder)	Emissions
Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)	Tia Scarpelli (Carbon Mapper) Melissa Sulprizio (Harvard)	Emissions
New prior CO2 biospheric fluxes from CMS-FLUX and GMAO	Kevin Bowman (JPL) Lesley Ott (GMAO)	Emissions	GMAO can provide high-resolution fluxes (as high as 12 km)
Snowpack Br2 emission	Chris Holmes (FSU)	Emissions
EDGAR v8.1_toxHg emissions for 1970-2022	Eric Roy (MIT)	Emissions
Improve pressure handling in GCHP advection	Yuanjian Zhang (WashU) Seb Eastham (ICL)	GCHP
Add error trap for duplicate scale factors in HEMCO	Bob Yantosca (Harvard)	HEMCO
Integration testing: Add stretched grid	Lizzie Lundgren (Harvard)	Quality Assurance
Integration testing: Add GCAP2	GCST	Quality Assurance
Integration testing: Add GCHP mass flux run	Lizzie Lundgren (Harvard)	Quality Assurance
Integration testing: Add run with all diagnostics turned on	GCST	Quality Assurance
Integration testing: Reinstate TOMAS40	Betty Croft (Dalhousie/WashU)	Quality Assurance
Strat-adjusted RF in GCC and GCHP	Connor Barker (UCL) Eloise Marais (UCL)	Radiation
Continue cleanup of C-preprocessor switches	Lizzie Lundgren (Harvard)	Structural
Updates to Luo deposition scheme	Gan Luo (Albany)	Wet Deposition	New version, keep as switch (not default)
Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer	Gan Luo (Albany) Fangqun Yu (Albany)	Wet Deposition

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
ML algorithms for bulk aerosol	Arshad Nair (Albany) Fangqun Yu (Albany)	Aerosols
Heterogeneous sulfate chemistry	Katie Travis (NASA)	Chemistry
H2 as an active species	Seb Eastham (ICL)	Chemistry
HCN, acetonitrile as fire tracers	Kevin Bates (CU Boulder)	Chemistry
Implement ethane in carbon simulation	Yuzhong Zhang (Westlake)	Chemistry
VCPs emissions	Kelvin Bates (CU Boulder)	Emissions
Mesospheric source of CO	Dylan Jones (UofT) Pam Wales (NASA GSFC)	Emissions
Drought-stress algorithm	Wei Li (Houston)	Emissions
Physically-based resolution correction for BVOC emissions using MEGAN	May Fu (SUSTech)	Emissions
Canadian forest fire prediction system (Canada government forecast model)	Robin Stevens (Montreal)	Emissions
Furan emission factors (updates existing emissions)	Lu Hu (Montana) Lixu Jin (Montana)	Emissions
Cooking emissions (not biofuel)	Kelvin Bates (CU Boulder)	Emissions
State-specific annual emissions scaling factors (US) (1990-2021)	Ishir Dutta (MIT)	Emissions
GISS-GC online	Lee Murray (Rochester)	External model
Hybrid MPI-OpenMP in GCHP	Seb Eastham (MIT) Killian Murphy (York) Lizzie Lundgren (Harvard)	GCHP
MAPL3: Update to MAPL3 in GCHP, including replacement of ExtData.rc and HISTORY.rc with YAML files	Lizzie Lundgren (Harvard)	GCHP
MAPL3: Comply with MAPL "positive" standard in GCHP diagnostic files	Lizzie Lundgren (Harvard)	GCHP
MAPL3: Wildcards in GCHP History	Lizzie Lundgren (Harvard)	GCHP
MAPL3: Output emissions with positive up convention in GCHP	Lizzie Lundgren (Harvard)	GCHP
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone	Bob Yantosca (Harvard)	Performance
Photophysical oxidation of aldehydes	Paulo Sebastianelli (Wollongong) Jenny Fisher (Wollongong)	Chemistry
DMS updates	Will Porter (UCR)	Chemistry
Furans emission and chemistry	Lixu Jin (Montana) Lu Hu (Montana)	Chemistry + Emissions
Cl2 prodcution from Fe aerosol	Qianjie Chen (HK Poly) Becky Alexander (UW)	Chemistry
VCP, cooking: tracers species added i.e., D5, ethanol affecting PAN	Kevin Bates (CU Boulder)	Emissions
bidirectional land-atmosphere exchange for Hg	Yuying Cui (MIT/Tsinghua)	Hg simulation
OH covariances for inversions	Elise Penn (Harvard)	Inversions
CESM2-GC offline	Seb Eastham (ICL) Lee Murray (Rochester)	Met fields
Re-binning of off-line sea salt and dust for TOMAS	Betty Croft (Dalhousie)	Microphysics
TOMAS nucleation updates	Sam O'Donnell (CSU)	Microphysics
Stratospheric aerosol APM	Fangqun Yu (SUNY Albany)	Microphysics
Transition from MERRA-2 to GEOS-IT for benchmarking	Yuanjian Zhang (WashU)	Quality Assurance
Automate integration testing on AWS	Yidan Tang (WashU)	Quality Assurance
Integration testing: Add across end of year run	GCST	Quality Assurance
Integration testing: Add GEOS-IT	Yuanjian Zhang (WashU)	Quality Assurance
Separate mixing, emissions, and drydep	Yuanjian Zhang (WashU)	Structural
Intel IFX compiler	Bob Yantosca (Harvard)	Structural
CMake option to only build libraries but not executable, also passing C-preprocessor statements to turn off code	Bob Yantosca (Harvard) Lee Murray (Rochester)	Structural
Remove differences introduced when breaking up GC-Classic runs in time; and flexible precision in HEMCO	Lizzie Lundgren (Harvard)	Structural
Limit allocation of State_Met to what is needed per simulation	Melissa Sulprizio (Harvard)	Structural

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
Modal aerosol model (MAM7) in GCHP	Shreya Sharma (MIT)	Aerosols
Online OCIM ocean biogeochemistry	Lee Murray (Rochester) Hannah Horowitz (UIUC) Chris Holmes (FSU)	Chemistry
Perchlorate chemistry	Yuk Chun Chan (UW)	Chemistry
Non-stomatal dry deposition (2-layer canopy model)	Michael Vermeuel (Purdue)	Dry Deposition
Continental chloride particle emissions (salty dust, road salt)	Jessica Haskins (Utah)	Emissions
Multivolatility emission inventory to address gaps in EDGAR/HTAP etc.	Ruochong (Tshingua)	Emissions
Lightning NOx production rates	Bex Horner (UCL)	Emissions
HFO and CF3CHO	Beth Killen (Wollongong) Jenny Fisher (Wollongong)	Chemistry
Glyoxal updates from isoprene	Tzung-May Fu (SUSTech)	Chemistry
Iodine chemistry	Becky Alexander (UW) Xuan Wang (CUHK)	Chemistry
Chlorine/Perchlorate	Yukchun Chan (UW)	Chemistry
Playa dust chemistry to improve Cl over land	Jessica Haskins (Utah)	Chemistry
GFED5 biomass burning	Eric Roy (MIT)	Emissions
Ocean Hg surface concentrations for 2010-2020 from multi-model ensemble	Eric Roy (MIT) Ari Feinberg (IQF-CSIC)	Hg simulation
Soil Hg emissions 2010-2020	Eric Roy (MIT) Ari Feinberg (IQF-CSIC)	Hg simulation
Air-sea exchange parameterization	Eric Roy (MIT)	Hg simulation
Soil Hg emissions parameterization	Ari Feinberg (IQF-CSIC)	Hg simulation
Sea salt uptake of GOM	Eric Roy (MIT)	Hg simulation
Photoreduction rate constant	Eric Roy (MIT)	Hg simulation
new observations (2010-2020) in standardized Hg benchmark for intercomparison	Eric Roy (MIT)/Ari Feinberg (IQF-CSIC)	Hg simulation
Hg simulation in GCHP	Eric Roy (MIT)	Hg simulation
OCIM - biogeochemical model - (C/P/N/Fe - no Hg yet) (MATLAB)	Hannah Horowitz (UIUC)	Hg simulation
possibly updating Hg oxidation chemistry based on Utah field campaigns	Jessica Haskins (Utah)	Hg simulation
New halogen/aerosol fields (surface area / AOD) from 10-year 14.4 benchmark simulation available online	Viral Shah (NASA GMAO); Eric Roy (MIT); Ari Feinberg (IQF-CSIC)	Input data
Extend IMI to CO2 (ICI)	Hannah Nesser (JPL)	Inversions
Global emission inventory of metals	Tzung-May Fu (SUSTech); He Zhong Tian (Peking Normal U)	Metals simulation
Investigate and improve performance of aerosol chemistry	Bob Yantosca (Harvard)	Performance
PAH - update from version 11	Lexia Cicone (MIT)	POPs simulation
Species database more accessible; doc updates; TOL discussion	Jessica Haskins (Utah)	Structural
Stretched-grid plotting in GCPy	Killian Murphy (York)	Tools
Model inter-comparison of transport (GEOS, GCHP, GCClassic)	Lizzie Lundgren (Harvard), Emma Knowland (NASA)	Transport
Comparing mass fluxes in GCHP vs. traditional lat/lon wind	Yuanjian Zhang (WashU), Seb Eastham (ICL)	Transport

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

Revision as of 13:36, 26 June 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]].
-== 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"|Major version in development
+!width="200px"|Version in development
 |-valign="top"
-|align="center"| -
+|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
-|align="center"|'''[[GEOS-Chem 14.2.0]]'''
+|align="center"|'''[[GEOS-Chem 14.5.0]]'''
 |}
@@ Line 24: / Line 18: @@
 == Feature integration in progress ==
-Features listed in this table are actively being integrated into GEOS-Chem by the [[GEOS-Chem Support Team]]. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.
+Features listed in this table are actively being integrated into GEOS-Chem by the [https://geoschem.github.io/support-team.html GEOS-Chem Support Team]. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.
 {| border=1 cellspacing=0 cellpadding=5
@@ Line 33: / Line 27: @@
 !width="100px"|Ease of implementation
 !width="300px"|Notes and References
-|-valign="top"<
-|Upgrade Fast-JX to Cloud-J
-|Lizzie Lundgren (Harvard)
-|Photolysis
-|Complicated
-|
-*Ongoing
 |-valign="top"
-|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
+|ALK4 & R4N2 chemistry
-|Bob Yantosca (Harvard)
+|Jared Brewer (UMN)
-|Structural
+|Chemistry
-|Complicated
+|Simple
 |
-*Ongoing
+*[https://github.com/geoschem/geos-chem/pull/2352 geos-chem PR #1625]
+*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., 2023.]
 |-valign="top"
-|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
+|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
-|Bob Yantosca (Harvard)
+|Yi Wang (Iowa)<br>Jun Wang (Iowa)
-|Model performance
+|Emissions
 |Medium
 |
-*Ongoing (will be done as time allows)
+*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
+*Incorporates new met field TSOIL1
 |-valign="top"
-|TOMAS in GCHP
+|Fix pressure handling in HEMCO standalone
-|Betty Croft (WashU)
-|Aerosols
-|Medium
-|
-*Slated for 14.2.0
-*[https://github.com/geoschem/GCHP/pull/221 geoschem/GCHP PR #221]
-*[https://github.com/geoschem/geos-chem/pull/1261 geoschem/geos-chem PR #1261]
-*[https://github.com/geoschem/HEMCO/pull/145 geoschem/HEMCO PR #145]
-|-valign="top"
-|Update transport tracer simulation for consistency with the tracer gridded component in GEOS
 |Melissa Sulprizio (Harvard)
-|TransportTracer simulation
+|HEMCO
-|Medium
-|
-*Ongoing
-|-valign="top"
-|[https://doi.org/10.5194/acp-23-1227-2023 Nitrate photolysis]
-|Viral Shah (NASA GMAO)
-|Chemistry
-|Simple
-|
-*Slated for 14.2.0
-*See [https://github.com/geoschem/geos-chem/pull/1623 geoschem/geos-chem PR #1623]
-|-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/1585 Reinstate Iy sink reactions on alkaline sea salt aerosol and remove IONO2 recycling on alkaline sea salt aerosol]
-|Becky Alexander (UW)
-|Chemistry
-|Simple
-|
-*Slated for 14.2.0
-*See [https://github.com/geoschem/geos-chem/pull/1620 geoschem/geos-chem PR #1620]
-*See [https://github.com/geoschem/geos-chem/issues/1585 geoschem/geos-chem #1585]
-|-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/1627 Bug fix: Add S(IV)+HOBr and S(IV)+HOCl rxn into fullchem mechanism (they had been inadvertently omitted)]
-|Becky Alexander (UW)
-|Chemistry<br>Bug fix
 |Simple
 |
-*Slated for 14.2.0
+*[https://github.com/geoschem/HEMCO/issues/277 HEMCO issue #277]
-*[https://github.com/geoschem/geos-chem/pull/1630 geoschem/geos-chem PR #1630]
-*[https://github.com/geoschem/geos-chem/issues/1627 geoschem/geos-chem #1627]
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/1547 Fix sea salt alkalinity and heterogeneous acid-catalyzed halogen chemistry]
+|Fix obspack - not working in 14.4.0
-|Becky Alexander (UW)
-|Chemistry<br>Bug fix
-|Simple
-|
-*Slated for 14.2.0
-*[https://github.com/geoschem/geos-chem/pull/1548 geoschem/geos-chem #1548]
-*Implementing the original fix causes a convergence error in KPP. This may be resolved with a better choice of tolerance for the KPP solver. We are investigating.
-|-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/1529 Bug fix: Initialize CO2 to a relevant value for full-chemistry]
-|Mike Long (GMAO)
-|Chemistry
-|Simple
-|
-*Slated for 14.2.0
-|-valign="top"
-|Retire all BPCH diagnostics
 |Bob Yantosca (Harvard)
 |Diagnostics
-|Simple
+|Medium
 |
-*Slated for 14.2.0
+*[https://github.com/geoschem/geos-chem/issues/2328 geos-chem issue #2328]
-* Can be done immediately following the [https://github.com/geoschem/geos-chem/pull/1569 TOMAS update for GCHP]
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/1429 Update SO4 production in cloud-droplets over oceans]
+|Horizontal flux regridding fix in MAPL
-|Becky Alexander (UW)
+|Tom Clune (GMAO)
-|Aerosols
+|GCHP
-|Simple
+|Medium
 |
-*Slated for 14.2.0
+*[https://github.com/geoschem/MAPL/pull/36 MAPL PR #36]
-*See [https://github.com/geoschem/geos-chem/pull/1434 geoschem/geos-chem PR #1434]
-*See [https://github.com/geoschem/geos-chem/issues/1429 geoschem/geos-chem #1429]
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/pull/1292 Update entrainment-limited kinetics in clouds]
+|Cloud-J 7.7.2 for greater flexibility in external models
-|Chris Holmes (FSU)
+|Lizzie Lundgren (Harvard)
-|Chemistry
+|Photolysis
-|Simple
+|Medium
 |
-*Slated for 14.2.0
+*[https://github.com/geoschem/Cloud-J/pull/17 Cloud-J PR #17]
-*See [https://github.com/geoschem/geos-chem/pull/1292 geoschem/geos-chem PR #1292]
+*[https://github.com/geoschem/geos-chem/pull/2342 geos-chem PR #2342]
+* More Cloud-J PRs in progress
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/331 Provide climatologies for open fire emissions]
+|GCHP run directory improvements for mass flux, stretched grid, and GEOS-IT runs
-|Melissa Sulprizio (Harvard)
+|Lizzie Lundgren (Harvard)
-|Emissions
+|GCHP
-|Simple
+|Medium
 |
+*[https://github.com/geoschem/geos-chem/pull/2326 geos-chem PR #2326]
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/655 Climatologies for lightning NOx]
+|Fixes for GEOS-Chem 14.4 in CESM
-|Lee Murray (Rochester)
+|Haipeng Lin (Harvard)<br>Lizzie Lundgren (Harvard)
-|Emissions
+|CESM
-|Simple
+|Medium
 |
-*See [https://github.com/geoschem/geos-chem/pull/1628 geoschem/geos-chem PR #1628]
+*[https://github.com/geoschem/geos-chem/pull/2348 geos-chem PR #2348]
+*[https://github.com/geoschem/geos-chem/pull/2349 geos-chem PR #2349]
+* More PRs in progress
 |}
-== Delivered and in the queue ==
+== Prioritized and in the queue ==
-Features listed in this table have been delivered to the GEOS-Chem Support Team and are prioritized to be integrated into GEOS-Chem in the near future.
+Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
 {| border=1 cellspacing=0 cellpadding=5
@@ Line 179: / Line 109: @@
 !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/10.1029/2022JG006908 Methane emissions from hydropower reservoirs]
+|New version of CEDS at 0.1 deg
-|Kyle Delwich (UC Berkeley)<br>Melissa Sulprizio (Harvard)
+|Dandan Zhang (WashU)
-|CH4 simulation
+|Emissions
 |Simple
+|Delivered June 2024
 |
+*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
 |-valign="top"
-|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
+|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
-|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
+|Lizzie Lundgren (Harvard)
-|Emissions
+|GC-Classic
-|Simple
+|Medium
+|
 |
-*Delivered to GCST (Jul 2022)
+*[https://github.com/geoschem/HEMCO/issues/18 HEMCO issue #18]
 |}
-== Delivered but not yet prioritized ==
+== Ready to go in ==
-Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integration into GEOS-Chem.
+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
@@ Line 207: / Line 141: @@
 !width="200px"|Contributor(s)
 !width="100px"|Model scope
-!width="100px"|Ease of implementation
+!width="100px"|Delivery status
-!width="300px"|Notes and References
+!width="300px"|Notes and Refereneces
 |-valign="top"
-|Geologic emission of ethane and propane
+|Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol
-|Matthew Rowlinson and Mat Evans(York)
+|Camilo Serrano (McGill)<br>Andreas Zuend (McGill)
-|Emissions
+|Aerosols
-|Simple
+|Not delivered
 |
-* 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/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
+|Extend aerosol settling
-|Joey Lam(CUHK)<br>Amos Tai (CUHK)
+|Eloise Marais (UCL)
-|Science
+|Aerosols
-|Simple
+|Not delivered
 |
-*Delivered to GCST (Feb 2021)
-* [https://github.com/geoschem/geos-chem/pull/629 geoschem/geos-chem #629]
 |-valign="top"
-|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
+|Comment back in Ca, Mg, and K cations in aerosol thermo (HETP)
-|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
+|Becky Alexander (UW)
-|Emissions
+|Aerosols
-|Simple
+|Not delivered
 |
-*Data files delivered to GCST (July 2021)
-*Data are quite large - need to think about storage, compression
-|}
+|-valign="top"
+|Seasalt aerosol from sea ice leads (2002-2011)
-== Ready but not delivered ==
+|Hannah Horrowitz (UIUC)
+|Aerosols
-Features listed in this table are ready but have not been delivered to the GEOS-Chem Support Team.
+|Not delivered
+|
-{| border=1 cellspacing=0 cellpadding=5
+*Offline and online, ready to go in HEMCO (optional in addition to existing seasalt emissions)
-|-bgcolor="#CCCCCC"
-!width="200px"|Feature
-!width="200px"|Contributor(s)
-!width="100px"|Model scope
-!width="420px"|Notes and References
 |-valign="top"
-|Online H2 chemistry
+|P/L species should not contribute to the error norm
-|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
+|Obin Sturm (USC)
 |Chemistry
+|Not delivered
 |
-* Pérez-Peña, M.P. et al., ACP, 2022.
-* [https://acp.copernicus.org/articles/22/12367/2022/acp-22-12367-2022.html DOI: 10.5194/acp-22-12367-2022]
 |-valign="top"
-|Alk4 & R4N2 chemistry
+|Additional 6 peroxynitrates (many PANs like species); improve ALK4 & add ALK6
-|Jared Brewer (Harvard)
+|Katie Travis (NASA LARC)
 |Chemistry
+|Not delivered
 |
-* Brewer, J.F. et al., J. Geophys. Res., submitted 2022.
-* [https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Click here for PDF]
 |-valign="top"
-|DMS Chemistry
+|Monoterpene oxidation more species & oxidation products
-|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
+|Kevin Bates (CU Boulder)
 |Chemistry
+|Not delivered
 |
 |-valign="top"
-|Organic acids (RCOOH)
+|PPN photolysis
-|Katie Travis (NASA)
+|Eloise Marais (UCL)
 |Chemistry
+|Not delivered
 |
 |-valign="top"
-|Update reactions with new JPL & IUPAC recommendations
+|Hlobal organic N dep from various emissions; nitrate aromatics updates
-|Kelvin Bates (Harvard)
+|May Fu (SUSTech)
-|Chemistry
+|Chemistry +<br>Deposition
+|Not delivered
 |
-* Currently running simulations to check magnitude of changes
 |-valign="top"
-|Improve carbon & nitrogen conservation in reactions
+|ALK4 from biogenic vs anthro
-|Kelvin Bates (Harvard)
+|Jared Brewer (UMN)
 |Chemistry
+|Not delivered
 |
 |-valign="top"
-|Blowing snow sea salt in TOMAS
+|Dry deposition to F90 to improve readability
-|Betty Croft (Dalhousie)
+|Chris Holmes (FSU)
-|Aerosols
+|Dry Deposition
+|Not delivered
 |
 |-valign="top"
-|New version of CEDS at 0.1 deg
+|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
-|Emma Knowland (NASA)
+|Joey Lam  (CUHK)<br>Amos Tai (CUHK)
+|Dry deposition
+|Delivered<br>Feb 2021
+|
+*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
+|-valign="top"
+|FRP-based fire emissions for eastern US at 0.2 (2019-2020)
+|Chris Holmes (FSU)
 |Emissions
+|Not delivered
 |
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
+|China agriculture NH3 emissions
-|Shixian Zhai (Harvard)
+|Amos Tai (CUHK)
 |Emissions
+|Not delivered
 |
-* Need permission from Qiang Zhang (Tsinghua U.) to distribute data
 |-valign="top"
-|KORUS-AQ emissions for East Asia
+|T-dependent anthropogenic VOCs
-|Katie Travis (NASA)
+|May Fu (SUSTech)
 |Emissions
+|Not delivered
 |
+*Option. Requires processing existing anthropogenic VOC emissions to generate offline emissions to read in. Parameterised for China.
 |-valign="top"
-|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
+|New source functions for transport tracers beryllium-7 and beryllium-10
-|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
+|Minjie Zheng (ETH)
-|Hg simulation
+|Emissions
+|Not delivered
 |
+*https://zenodo.org/records/8372652
 |-valign="top"
-|WRF-GC Hg simulation
+|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
-|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
+|Yang Li (Baylor U)<br>Loretta Mickley (Harvard)
-|Hg simulation<br>WRF-GC
+|Emissions
+|Delivered
 |
+*Data involves many files- need to think about temporal frequency
 |-valign="top"
-|Updated HgII gas-partical partitioning
+|Australian emissions
-|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
+|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
-|Hg simulation
+|Emissions
+|Not delivered
 |
-* Should be option, not default
 |-valign="top"
-|Dry deposition to F90 (readability)
+|Hg geogenic emissions (volcanic, rock weathering)
-|Chris Holmes (FSU)
+|Eric Roy (MIT)
-|Dry deposition
+|Emissions
+|Not delivered
 |
+|-valign="top"
+|Hg biomass burning - FINN2.5 & GFED4
+|Eric Roy (MIT)
+|Emissions
+|Not delivered
+|
+|-valign="top"
+|BCC-GC online
+|Lin Zhang (PKU)
+|External Model
+|Not delivered
+|
+|-valign="top"
+|GC-YIBS with online fire emissions
+|Xu Yue (NUIST)<br>Hong Liao (NUIST)
+|External Model
+|Not delivered
+|
+|-valign="top"
+|GISS-GC offline (GCAP)
+|Lee Murray (Rochester)
+|GCAP
+|Not delivered
+|
+|-valign="top"
+|Archived TCR-2 OH fields for carbon simulations
+|Kazu Miyazaki (JPL)
+|Input data
+|Not delivered
+|
+*This will be the default OH, but users will have the option of selecting other OH fields
 |}
@@ Line 351: / Line 331: @@
 !width="100px"|Model scope
 !width="420px"|Notes and References
+|-valign="top"
+|Capture all trop and PBL height changes in budget diagnostics
+|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
+|Diagnostics
+|
+*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
+|-valign="top"
+|Dust non-sphericity impacts on optical properties
+|Inderjeet Singh (WashU)
+|Aerosols
+|
+|-valign="top"
+|Fixes to stratospheric aerosol settling
+|Connor Barker (UCL)<br>Eloise Marais (UCL)
+|Aerosols
+|
 |-valign="top"
-|PPN+hv, PPN+OH
+|DMS chemistry in v14
-|Robert Ryan (UCL)
+|Linia Tashmim (UCR)<br>Will Porter (UCR)
 |Chemistry
 |
 |-valign="top"
-|MBO
+|KPP standalone + 3D Interface
-|Michael Vermeuel (UMN)
+|Obin Sturm (USC)
 |Chemistry
 |
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/1094 Stratospheric adjustment with RRTMG in GEOS-Chem]
+|Load balancing in chemistry solver (GCHP)
-|Seb Eastham (MIT)
+|Zhouran (Jordan) Sun (WashU)
-|Science
+|Chemistry +<br>Performance
 |
 |-valign="top"
-|Re-binning of off-line sea salt and dust for use in TOMAS
+|UCX chemistry in mesosphere (GCHP/GCClassic)
-|Betty Croft (Dalhousie)
+|Helena McDonald (MIT)
-|Aerosols
+|Chemistry
 |
 |-valign="top"
-|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
+|Updated aromatic oxidation
-|Betty Croft (Dalhousie)
+|Stephen MacFarlane (Wollongong)<br>Jenny Fisher (Wollongong)
-|Aerosols
+|Chemistry
 |
 |-valign="top"
-|ML algorithms for bulk aerosols
+|MCO3 uptake by cloud forming MP; leading to lower PAN
-|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
+|Laura Yang (Harvard)
-|Aerosols
+|Chemistry
 |
 |-valign="top"
-|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
+|Implement isotope simulation for CH4 in the carbon simulation
-|Shixian Zhai (Harvard)
+|Lee Murray (Rochester)
-|Aerosols
+|Chemistry
 |
+*Will have to change negative emissions from soil to a first-order loss process
 |-valign="top"
-|Updates to Hodzic SOA scheme
+|Active mesospheric chemistry
-|Jared Brewer (Harvard)
+|Helena McDonald (MIT)<br>Seb Eastham (ICL)
-|Aerosols
+|Chemistry
 |
 |-valign="top"
-|Automated reduction in isoprene scheme
+|Documentation for adding additional aerosol species
-|Dan Westervelt (Lamont-Doherty)
+|Connor Barker (UCL)
-|Aerosols
+|Documentation
 |
 |-valign="top"
-|Brown carbon chemsitry
+|Column diagnostics
-|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
+|Lizzie Lundgren (Harvard)<br>Viral Shah (GMAO)
-|Aerosols
+|Diagnostics
 |
 |-valign="top"
-|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
+|TOMAS rate diagnostics -- improve performance
-|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
+|Betty Croft (WashU/Dal)
-|Convection
+|Diagnostics +<br>Performance
 |
 |-valign="top"
-|Update surface methane boundary condition using NOAA flask data
+|Archive gamma values from heterogeneous chemistry
-|Lee Murray (Rochester)
+|Bob Yantosca (Harvard)
-|Input data
+|Diagnostics
+|
+|-valign="top"
+|RRTMG Documentation
+|GCST
+|Documentation
+|
+|-valign="top"
+|Canopy Physics Model
+|Sam Silva (MIT)
+|Dry Deposition
+|
+|-valign="top"
+|Dry deposition diagnostics by land cover
+|Holly Nowell (FSU)<br>Chris Holmes (FSU)
+|Dry Deposition
+|
+|-valign="top"
+|Dry deposition process diagnostics
+|Holly Nowell (FSU)<br>Chris Holmes (FSU)
+|Dry Deposition
+|
+|-valign="top"
+|Biomass burning for TOMAS
+|Nicole June (CSU)
+|Emissions +<br>Microphysics
 |
 |-valign="top"
-|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
+|Historic biomass burning (1750-2010)
-|Jintai Lin (PKU)
+|Pengfei (Gtech)
 |Emissions
 |
-*Horizontal resolution: 5km, temporal resolution: JJA mean
-*monthly data will be available at a later stage; please contact us
 |-valign="top"
-|Updated biomass burning emission factors and species
+|Rice methane emissions
-|Tess Carter (MIT)
+|Zichong Cheng (Harvard)
+|Emissions+<br>Carbon simulation
+|
+|-valign="top"
+|Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.)
+|Katie Travis (NASA)<br>Kelvin Bates (CU Boulder)
 |Emissions
 |
 |-valign="top"
-|Updated offline sea salt emissions
+|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
-|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
+|Tia Scarpelli (Carbon Mapper)<br>Melissa Sulprizio (Harvard)
 |Emissions
 |
 |-valign="top"
-|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
+|New prior CO2 biospheric fluxes from CMS-FLUX and GMAO
-|Sam Silva (MIT)
+|Kevin Bowman (JPL)<br>Lesley Ott (GMAO)
-|Emissions &<br>Science
+|Emissions
 |
-*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
+*GMAO can provide high-resolution  fluxes (as high as 12 km)
-*Needs to be updated to a more recent GEOS-Chem version
 |-valign="top"
-|Gridded EPA (GEPA) version 2 emissions for 2012-2018
+|Snowpack Br2 emission
-|Bram Maasakkers (SRON)<br>Erin McDuffie (WashU),<br>Melissa Sulprizio (Harvard)
+|Chris Holmes (FSU)
-|Emissions<br>CH4 simulation
+|Emissions
 |
 |-valign="top"
-|Assess memory leak in GCHP
+|EDGAR v8.1_toxHg emissions for 1970-2022
-|Killian Murphy (York)
+|Eric Roy (MIT)
-|Model performance
+|Emissions
 |
-*NOTE: Most memory leaks in GCHP have been fixed by [https://github.com/geoschem/geos-chem/pull/1353 geoschem/geos-chem PR #1353].  Need to assess if any memory leaks still remain.
 |-valign="top"
-|Hybrid MPI-OpenMP in GCHP
+|Improve pressure handling in GCHP advection
-|Seb Eastham (MIT)<br>Killian Murphy (York)
+|Yuanjian Zhang (WashU)<br>Seb Eastham (ICL)
-|Model performance
+|GCHP
 |
 |-valign="top"
-|Improve run directory templating and creation with init_rd.sh and shared directories
+|Add error trap for duplicate scale factors in HEMCO
-|Jourdan He (WashU)
+|Bob Yantosca (Harvard)
-|Run directories
+|HEMCO
 |
 |-valign="top"
-|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
+|Integration testing: Add stretched grid
-|GCST?
+|Lizzie Lundgren (Harvard)
-|Documentation
+|Quality Assurance
+|
+|-valign="top"
+|Integration testing: Add GCAP2
+|GCST
+|Quality Assurance
+|
+|-valign="top"
+|Integration testing: Add GCHP mass flux run
+|Lizzie Lundgren (Harvard)
+|Quality Assurance
+|
+|-valign="top"
+|Integration testing: Add run with all diagnostics turned on
+|GCST
+|Quality Assurance
+|
+|-valign="top"
+|Integration testing: Reinstate TOMAS40
+|Betty Croft (Dalhousie/WashU)
+|Quality Assurance
+|
+|-valign="top"
+|Strat-adjusted RF in GCC and GCHP
+|Connor Barker (UCL)<br>Eloise Marais (UCL)
+|Radiation
+|
+|-valign="top"
+|Continue cleanup of C-preprocessor switches
+|Lizzie Lundgren (Harvard)
+|Structural
+|
+|-valign="top"
+|Updates to Luo deposition scheme
+|Gan Luo (Albany)
+|Wet Deposition
+|
+*New version, keep as switch (not default)
+|-valign="top"
+|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
+|Gan Luo (Albany)<br>Fangqun Yu (Albany)
+|Wet Deposition
 |
@@ Line 497: / Line 579: @@
 |-valign="top"
-|Snow / Icy Bromine
+|ML algorithms for bulk aerosol
-|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
+|Arshad Nair (Albany)<br>Fangqun Yu (Albany)
-|Chemistry
+|Aerosols
 |
 |-valign="top"
-|Monoterpene oxidation scheme
+|Heterogeneous sulfate chemistry
-|Jessica Haskins (MIT)
+|Katie Travis (NASA)
 |Chemistry
 |
 |-valign="top"
-|Fire related VOCs including furans
+|H2 as an active species
-|Lu Hu (UMT)<br>Lixu Jin (UMT)
+|Seb Eastham (ICL)
 |Chemistry
 |
 |-valign="top"
-|Extension of UCX into the mesosphere
+|HCN, acetonitrile as fire tracers
-|Seb Eastham (MIT)<br>Eric Fleming (NASA)
+|Kevin Bates (CU Boulder)
 |Chemistry
 |
 |-valign="top"
-|Methane flux ingestion
+|Implement ethane in carbon simulation
-|Eloise Marais (UCL)
+|Yuzhong Zhang (Westlake)
 |Chemistry
 |
 |-valign="top"
-|Parameterized effective radius
+|VCPs emissions
-|Haihui Zhu (WashU)
+|Kelvin Bates (CU Boulder)
-|Aerosols
+|Emissions
 |
 |-valign="top"
-|Dust non-sphericity impacts on surface chem and optical properties
+|Mesospheric source of CO
-|Inderjeet Singh (WashU)
+|Dylan Jones (UofT)<br>Pam Wales (NASA GSFC)
-|Aerosols
+|Emissions
 |
 |-valign="top"
-|Size-resolved stratospheric aerosol
+|Drought-stress algorithm
-|Seb Eastham (MIT)
+|Wei Li (Houston)
-|Aerosols
+|Emissions
 |
 |-valign="top"
-|Extend aerosol settling
+|Physically-based resolution correction for BVOC emissions using MEGAN
-|Eloise Marais (UCL)
+|May Fu (SUSTech)
-|Aerosols
+|Emissions
 |
 |-valign="top"
-|Stratospheric aerosol APM
+|Canadian forest fire prediction system (Canada government forecast model)
-|Fangqun Yu (SUNY)
+|Robin Stevens (Montreal)
-|Aerosols
+|Emissions
 |
 |-valign="top"
-|Plume-in-grid model
+|Furan emission factors (updates existing emissions)
-|Hongwei Sun (Harvard)
+|Lu Hu (Montana)<br>Lixu Jin (Montana)
-|Chemistry
+|Emissions
 |
 |-valign="top"
-|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
+|Cooking emissions (not biofuel)
-|Lee Murray (Rochester)
+|Kelvin Bates (CU Boulder)
 |Emissions
 |
 |-valign="top"
-|Seb aircraft emissions beyond recent 2019 update
+|State-specific annual emissions scaling factors (US) (1990-2021)
-|Seb Eastham (MIT)
+|Ishir Dutta (MIT)
 |Emissions
 |
 |-valign="top"
-|FRP-based fire emsisions for eastern US at 0.2	deg
+|GISS-GC online
-|Charlie Fite (FSU)
+|Lee Murray (Rochester)
+|External model
+|
+|-valign="top"
+|Hybrid MPI-OpenMP in GCHP
+|Seb Eastham (MIT)<br>Killian Murphy (York)<br>Lizzie Lundgren (Harvard)
+|GCHP
+|
+|-valign="top"
+|MAPL3: Update to MAPL3 in GCHP, including replacement of ExtData.rc and HISTORY.rc with YAML files
+|Lizzie Lundgren (Harvard)
+|GCHP
+|
+|-valign="top"
+|MAPL3: Comply with MAPL "positive" standard in GCHP diagnostic files
+|Lizzie Lundgren (Harvard)
+|GCHP
+|
+|-valign="top"
+|MAPL3: Wildcards in GCHP History
+|Lizzie Lundgren (Harvard)
+|GCHP
+|
+|-valign="top"
+|MAPL3: Output emissions with positive up convention in GCHP
+|Lizzie Lundgren (Harvard)
+|GCHP
+|
+|-valign="top"
+|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
+|Bob Yantosca (Harvard)
+|Performance
+|
+|-valign="top"
+|Photophysical oxidation of aldehydes
+|Paulo Sebastianelli (Wollongong)<br>Jenny Fisher (Wollongong)
+|Chemistry
+|
+|-valign="top"
+|DMS updates
+|Will Porter (UCR)
+|Chemistry
+|
+|-valign="top"
+|Furans emission and chemistry
+|Lixu Jin (Montana)<br>Lu Hu (Montana)
+|Chemistry + <br>Emissions
+|
+|-valign="top"
+|Cl2 prodcution from Fe aerosol
+|Qianjie Chen (HK Poly)<br>Becky Alexander (UW)
+|Chemistry
+|
+|-valign="top"
+|VCP, cooking: tracers species added i.e., D5, ethanol affecting PAN
+|Kevin Bates (CU Boulder)
 |Emissions
 |
 |-valign="top"
-|Hg iodine chemistry
+|bidirectional land-atmosphere exchange for Hg
-|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
+|Yuying Cui (MIT/Tsinghua)
 |Hg simulation
 |
 |-valign="top"
-|Hg simulation in GCHP
+|OH covariances for inversions
-|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
+|Elise Penn (Harvard)
-|Hg simulation
+|Inversions
 |
 |-valign="top"
-|Update Hg ocean and soil boundary conditions for consistency with new chemistry
+|CESM2-GC offline
-|Yanxu Zhang (Nanjing U.)
+|Seb Eastham (ICL)<br>Lee Murray (Rochester)
-|Hg simulation
+|Met fields
 |
 |-valign="top"
-|Dry deposition diagnostics by land cover
+|Re-binning of off-line sea salt and dust for TOMAS
-|Holly Nowell (FSU)
+|Betty Croft (Dalhousie)
-|Diagnostics
+|Microphysics
 |
 |-valign="top"
-|Dry deposition process diagnostics
+|TOMAS nucleation updates
-|Holly Nowell (FSU)
+|Sam O'Donnell (CSU)
-|Diagnostics
+|Microphysics
 |
 |-valign="top"
-|Isotope simulation for CO and CH4 in GCHP
+|Stratospheric aerosol APM
-|Lee Murray (Rochester)
+|Fangqun Yu (SUNY Albany)
-|Carbon simulation
+|Microphysics
 |
 |-valign="top"
-|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
+|Transition from MERRA-2 to GEOS-IT for benchmarking
-|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
+|Yuanjian Zhang (WashU)
-|Emissions<br>CH4 simulation
+|Quality Assurance
 |
 |-valign="top"
-|Modularization of aerosols code for interface with GOCART in GEOS
+|Automate integration testing on AWS
-|Christoph Keller (GMAO)
+|Yidan Tang (WashU)
+|Quality Assurance
+|
+|-valign="top"
+|Integration testing: Add across end of year run
+|GCST
+|Quality Assurance
+|
+|-valign="top"
+|Integration testing: Add GEOS-IT
+|Yuanjian Zhang (WashU)
+|Quality Assurance
+|
+|-valign="top"
+|Separate mixing, emissions, and drydep
+|Yuanjian Zhang (WashU)
 |Structural
 |
 |-valign="top"
-|Improve load balancing in GCHP
+|Intel IFX compiler
-|Seb Eastham (MIT)
+|Bob Yantosca (Harvard)
-|Model performance
+|Structural
 |
 |-valign="top"
-|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
+|CMake option to only build libraries but not executable, also passing C-preprocessor statements to turn off code
-|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
+|Bob Yantosca (Harvard)<br>Lee Murray (Rochester)
-|Transport
+|Structural
 |
 |-valign="top"
-|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
+|Remove differences introduced when breaking up GC-Classic runs in time; and flexible precision in HEMCO
-|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
+|Lizzie Lundgren (Harvard)
-|Transport
+|Structural
 |
 |-valign="top"
-|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
+|Limit allocation of State_Met to what is needed per simulation
-|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
+|Melissa Sulprizio (Harvard)
-|Transport
+|Structural
 |
@@ Line 666: / Line 832: @@
 |-valign="top"
-|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
+|Modal aerosol model (MAM7) in GCHP
-|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
+|Shreya Sharma (MIT)
-|Emissions
+|Aerosols
 |
-*See [https://github.com/geoschem/geos-chem/issues/1288 geoschem/geos-chem #1288]
-*[https://github.com/geoschem/geos-chem/issues/1288#issuecomment-1255103962 NOTE: This feature has been tabled for the time being.]
 |-valign="top"
-|Updates to Aromatic chemistry
+|Online OCIM ocean biogeochemistry
-|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
+|Lee Murray (Rochester)<br>Hannah Horowitz (UIUC)<br>Chris Holmes (FSU)
 |Chemistry
 |
 |-valign="top"
-|Nitrate photolysis
+|Perchlorate chemistry
-|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
+|Yuk Chun Chan (UW)
 |Chemistry
 |
 |-valign="top"
-|In aerosol chemistry Halogens
+|Non-stomatal dry deposition (2-layer canopy model)
-|Mat Evans (York)<br>Hansen Cao (CU Boulder)
+|Michael Vermeuel (Purdue)
-|Chemistry
+|Dry Deposition
 |
 |-valign="top"
-|Benchmark box model of GC Chemistry
+|Continental chloride particle emissions (salty dust, road salt)
-|Katie Travis (NASA)
+|Jessica Haskins (Utah)
-|Chemistry
+|Emissions
 |
 |-valign="top"
-|Alkyl nitrates Alk7, PHAN
+|Multivolatility emission inventory to address gaps in EDGAR/HTAP etc.
-|Katie Travis (NASA)
+|Ruochong (Tshingua)
+|Emissions
+|
+|-valign="top"
+|Lightning NOx production rates
+|Bex Horner (UCL)
+|Emissions
+|
+|-valign="top"
+|HFO and CF3CHO
+|Beth Killen (Wollongong)<br>Jenny Fisher (Wollongong)
 |Chemistry
 |
 |-valign="top"
-|Add stratospheric ozone species to full-chemistry simulations
+|Glyoxal updates from isoprene
-|Lee Murray (Rochester)
+|Tzung-May Fu (SUSTech)
 |Chemistry
 |
 |-valign="top"
-|Perchlorate chemistry
+|Iodine chemistry
-|Yuk Chun Chan (UWAB)
+|Becky Alexander (UW)<br>Xuan Wang (CUHK)
 |Chemistry
 |
 |-valign="top"
-|Explicit heterogeneous sulfate chemistry
+|Chlorine/Perchlorate
-|Katie Travis (NASA)<br>Becky Alexander (UT)
+|Yukchun Chan (UW)
 |Chemistry
 |
 |-valign="top"
-|ISORROPIA-lite
+|Playa dust chemistry to improve Cl over land
-|Becky Alexander (UW)
+|Jessica Haskins (Utah)
-|Aerosols
+|Chemistry
 |
 |-valign="top"
-|HOx and ozone "emissions" from lightning as option in model to play with
+|GFED5 biomass burning
-|Jingqiu (Alaska)<br>Lee Murray (Rochester)
+|Eric Roy (MIT)
 |Emissions
 |
 |-valign="top"
-|Sea salt aerosol from sea ice leads
+|Ocean Hg surface concentrations for 2010-2020 from multi-model ensemble
-|Hannah Horowitz (U. Illinois)
+|Eric Roy (MIT)<br>Ari Feinberg (IQF-CSIC)
-|Emissions
+|Hg simulation
 |
 |-valign="top"
-|Drought-stress algorithm
+|Soil Hg emissions 2010-2020
-|Wei Li (U. Houston)
+|Eric Roy (MIT)<br>Ari Feinberg (IQF-CSIC)
+|Hg simulation
 |
+|-valign="top"
+|Air-sea exchange parameterization
+|Eric Roy (MIT)
+|Hg simulation
 |
 |-valign="top"
-|Biomass burning injection height profiles
+|Soil Hg emissions parameterization
-|Inderjeet Singh (WashU)
+|Ari Feinberg (IQF-CSIC)
-|Emissions
+|Hg simulation
 |
 |-valign="top"
-|OCIM integration
+|Sea salt uptake of GOM
-|Chris Holmes (FSU)<br>Lee Murray (Rochester)
+|Eric Roy (MIT)
+|Hg simulation
 |
+|-valign="top"
+|Photoreduction rate constant
+|Eric Roy (MIT)
+|Hg simulation
 |
 |-valign="top"
-|Updating landcover products in GEOS-Chem
+|new observations (2010-2020) in standardized Hg benchmark for intercomparison
-|Chris Holmes (FSU)<br>Jeff Geddes (BU)
+|Eric Roy (MIT)/Ari Feinberg (IQF-CSIC)
+|Hg simulation
+|
+|-valign="top"
+|Hg simulation in GCHP
+|Eric Roy (MIT)
+|Hg simulation
+|
+|-valign="top"
+|OCIM - biogeochemical model - (C/P/N/Fe - no Hg yet) (MATLAB)
+|Hannah Horowitz (UIUC)
+|Hg simulation
+|
+|-valign="top"
+|possibly updating Hg oxidation chemistry based on Utah field campaigns
+|Jessica Haskins (Utah)
+|Hg simulation
+|
+|-valign="top"
+|New halogen/aerosol fields (surface area / AOD) from 10-year 14.4 benchmark simulation available online
+|Viral Shah (NASA GMAO); Eric Roy (MIT); Ari Feinberg (IQF-CSIC)
 |Input data
 |
 |-valign="top"
-|Dry deposition physical improvement
+|Extend IMI to CO2 (ICI)
-|Chris Holmes (FSU)
+|Hannah Nesser (JPL)
-|Dry deposition
+|Inversions
 |
 |-valign="top"
-|TOMAS WRF-GC in regional Thailand simulation
+|Global emission inventory of metals
-|Win Trivitayanurak (Chulalongkorn U)
+|Tzung-May Fu (SUSTech); He Zhong Tian (Peking Normal U)
-|Aerosols
+|Metals simulation
 |
-|}
+|-valign="top"
+|Investigate and improve performance of aerosol chemistry
+|Bob Yantosca (Harvard)
+|Performance
+|
+|-valign="top"
+|PAH - update from version 11
+|Lexia Cicone (MIT)
+|POPs simulation
+|
-----------------
+|-valign="top"
+|Species database more accessible; doc updates; TOL discussion
+|Jessica Haskins (Utah)
+|Structural
+|
-'''''[[Main_Page|GEOS-Chem Main Page]] | [[GCHP_Main_Page|GCHP Main Page]]'''''
+|-valign="top"
+|Stretched-grid plotting in GCPy
+|Killian Murphy (York)
+|Tools
+|
+|-valign="top"
+|Model inter-comparison of transport (GEOS, GCHP, GCClassic)
+|Lizzie Lundgren (Harvard), Emma Knowland (NASA)
+|Transport
+|
+|-valign="top"
+|Comparing mass fluxes in GCHP vs. traditional lat/lon wind
+|Yuanjian Zhang (WashU), Seb Eastham (ICL)
+|Transport
+|
+|}