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Revision as of 18:46, 21 October 2022
GEOS-Chem 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 Working Groups and the Steering Committee. For history of past releases see the GEOS-Chem Versions wiki page.
Contents
Release schedule
Please see the GEOS-Chem Release Proposal outlining the procedure and schedule for releasing GEOS-Chem versions.
Merged and awaiting release
See the links below for items merged and awaiting release.
Patch version in development | Major version in development |
---|---|
GEOS-Chem 14.0.1 | GEOS-Chem 14.0.0 |
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 |
---|---|---|---|---|
Adaptive chemical solver (as option) / KPP 3.0.0 | Mike Long (Harvard) Haipeng Lin (Harvard) Bob Yantosca (GCST) Lu Shen (PKU) |
Chemistry | Complicated |
|
Use pointers to internal state for species arrays in GCHP/GEOS | Lizzie Lundgren (Harvard) | GCHP/GEOS | Medium | |
Joint CO2-CO-CH4-OCS simulation via KPP | Beata Bukosa (NIWA) Kevin Bowman (JPL) Mike Long (Harvard) |
Specialty simulation | Medium |
|
Identify and remove memory leaks and similar issues | Bob Yantosca (Harvard) | Structural | Medium | |
TOMAS in GCHP | Betty Croft (WashU) | Aerosols | Simple |
|
Bug fix for GFAS in GCHP | Lizzie Lundgren (Harvard) | GCHP | Simple | |
Revision to a rate constant for the C2H4 scheme | Kelvin Bates (Harvard) | Chemistry | Simple |
|
Fix product in HOBr/Cl + S(IV) reactions | Xuan Wang (CUHK) | Chemistry | Simple |
|
Add MO2 + NO3 reaction | Kelvin Bates (Harvard) | Chemistry | Simple |
|
Update SO4 production in cloud-droplets over oceans | Becky Alexander | Aerosols | Simple |
|
RO2 diagnostic | Melissa Sulprizio (Harvard) | Diagnostics | Simple | |
Output satellite diagnostics as NetCDF | Eloise Marais (UCL) | Diagnostics | Simple | |
Provide climatologies for open fire emissions | Melissa Sulprizio (Harvard) | Emissions | Simple | |
Climatologies for lightning NOx | Lee Murray (Rochester) | Emissions | Simple | |
Add new species concentration diagnostic in units of molec/cm3 | Haipeng Lin (Harvard) | Diagnostics | Simple | |
Update transport tracer simulation for consistency with the tracer gridded component in GEOS | Melissa Sulprizio (Harvard) | TransportTracer simulation | Simple | |
Improvements in modelled Hg0 dry deposition to land | Ari Feinberg (MIT) Noelle Selin (MIT) Thandolwethu Dlamini (MIT) Martin Jiskra (UBasel) Viral Shah (Harvard) |
Hg simulation | Simple |
|
AMAP 2015 emissions from GMA2018 | Helene Angot(MIT) Ari Feinberg (MIT) Noelle Selin (MIT) |
Hg simulation | Simple |
|
Delivered 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.
Feature | Contributor(s) | Model scope | Ease of implementation | Notes and References |
---|---|---|---|---|
HTAPv3 at 0.1 deg | Dandan Zhang (WashU) | Emissions | Simple |
|
Delivered but not yet prioritized
Features listed in this table have been delivered to the GEOS-Chem Support Team but are not yet prioritized for integration into GEOS-Chem.
Feature | Contributor(s) | Model scope | Ease of implementation | Notes and References |
---|---|---|---|---|
Tagged O3 simulation in GCHP | Xingpei Yu (PKU) Jourdan He (WashU) |
TagO3 simulation | Simple |
|
Global continental chlorine (pCl and HCl) emissions | Bingqing Zhang (Georgia Tech) Pengfei Liu (Georgia Tech) |
Emissions | Simple |
|
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange | Joey Lam(CUHK) Amos Tai (CUHK) |
Science | Simple |
|
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100 | Yang Li (Baylor University) Loretta Mickley (Harvard) |
Emissions | Simple |
|
Stratospheric HCN chemistry | Armin Kleinbohl (JPL) Debra Weisenstein (Harvard, retired) |
Chemistry | Medium |
|
Ready but not delivered
Features listed in this table are ready but have not been delivered to the GEOS-Chem Support Team.
Feature | Contributor(s) | Model scope | Notes and References |
---|---|---|---|
Updating VOC fire emissions and adding lumped furan | Colette Heald (MIT) Tess Carter (MIT) |
Chemistry |
|
Nitrate photolysis | Viral Shah (NASA GMAO) | Chemistry |
|
Online H2 chemistry | Maria Paula Pérez-Peña (UNSW) Jenny Fisher (UOW) Dylan Millet (UMN) |
Chemistry | |
Alk4 & R4N2 chemistry | Jared Brewer (Harvard) | Chemistry |
|
Organic acids (RCOOH) | Katie Travis (NASA) | Chemistry | |
Update reactions with new JPL & IUPAC recommendations | Kelvin Bates (Harvard) | Chemistry |
|
Improve carbon & nitrogen conservation in reactions | Kelvin Bates (Harvard) | Chemistry | |
Blowing snow sea salt in TOMAS | Betty Croft (Dalhousie) | Aerosols | |
Geologic emission of ethane and propane | Matthew Rowlinson and Mat Evans(York) | Emissions |
|
New version of CEDS at 0.1 deg | Emma Knowland (NASA) | Emissions | |
MEIC (China regional) for 2000-2017 at 0.5x0.625 deg | Shixian Zhai (Harvard) | Emissions |
|
KORUS-AQ emissions for East Asia | Katie Travis (NASA) | Emissions |
|
Australian anthropogenic Hg emissions | Stephen MacFarlane (UOW) Jenny Fisher (UOW) Hannah Horowitz (U. Illinois) Viral Shah (Harvard) |
Hg simulation | |
WRF-GC Hg simulation | Xiaotian Xu (Nanjing U.) Yanxu Zhang (Nanjing U.) |
Hg simulation WRF-GC |
|
Updated HgII gas-partical partitioning | Kaiyun Liu (Tsinghua U.) Qingru Wu (Tsinghua U.) Shuxiao Wang (Tsinghua U.) |
Hg simulation |
|
Dry deposition to F90 (readability) | Chris Holmes (FSU) | Dry deposition |
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
|
---|---|---|---|
DMS Chemistry | Linia Tashmim (UC Riverside) William Porter (UC Riverside) |
Chemistry | |
PPN+hv, PPN+OH | Robert Ryan (UCL) | Chemistry | |
MBO | Michael Vermeuel (UMN) | Chemistry | |
Stratospheric adjustment with RRTMG in GEOS-Chem | Seb Eastham (MIT) | Science | |
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 | |
Update surface methane boundary condition using NOAA flask data | Lee Murray (Rochester) | Input data | |
Provide recommended rather than hard-coded scaling factors for online emissions | Melissa Sulprizio (Harvard) | Emissions | |
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 | |
HgII deposition too high in 13.4; Hg0 conc too low; should not use as is | Viral Shah (NASA GMAO) Yanxu Zhang (Nanjing U.) Ari Feinberg (MIT) |
Hg simulation | |
Canopy Physics Model | Sam Silva (MIT) | Emissions & Science |
|
Gridded EPA (GEPA) version 2 emissions for 2012-2018 | Bram Maasakkers (SRON) Erin McDuffie (WashU), Melissa Sulprizio (Harvard) |
Emissions CH4 simulation |
|
Reduce dimension of analytical inversion | Hannah Nesser (Harvard) | Adjoint capability | |
Retire all BPCH diagnostics | Bob Yantosca (Harvard) | Diagnostics | |
GEOS-Chem in CESM 2.3 | Lizzie Lundgren (Harvard) | Interfacing with ESMs | |
Assess memory leak in GCHP | Killian Murphy (York) | Model performance | |
Point to internal state for species mixing ratios in GCHP and GEOS | Lizzie Lundgren (Harvard) Christoph Keller (NASA) |
Structural | |
Assess precision in GCHP internal state - use R4 for some? | Lizzie Lundgren (Harvard) | Structural | |
Hybrid MPI-OpenMP in GCHP | Seb Eastham (MIT) Killian Murphy (York) |
Model performance | |
Convert HEMCO input files to YAML | Melissa Sulprizio (Harvard) | Structural | |
Allow easy disabling of HEMCO emissions for testing | Melissa Sulprizio (Harvard) | Structural | |
Improve run directory templating and creation with init_rd.sh and shared directories | Jourdan He (WashU) | Run directories | |
Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc | GCST? | Documentation | |
Upgrade Fast-JX to Cloud-J | Lizzie Lundgren (Harvard) | Structural |
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 | |
Parameterized effective radius | Haihui Zhu (WashU) | Aerosols | |
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 |
|
Separate mixing and emissions | Bob Yantosca (Harvard) | Structural | |
Modularization of aerosols code for interface with GOCART in GEOS | Christoph Keller (GMAO) | Structural | |
Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism | Bob Yantosca (Harvard) | Structural | |
Improve load balancing in GCHP | Seb Eastham (MIT) | Model performance | |
Update to MAPL 3 in GCHP, including replacement of ExtData.rc with YAML file | Lizzie Lundgren (Harvard) | Structural | |
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone | Bob Yantosca (Harvard) | Model performance | |
Limit allocation of State_Met to what is needed per simulation | Melissa Sulprizio (Harvard) | Structural | |
Make frequency of HEMCO restart file configurable | Melissa Sulprizio (Harvard) | Diagnostics | |
Apply masks/scaling in HEMCO based on input category or flag | Melissa Sulprizio (Harvard) | Structural | |
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 |
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 | Notes and References
|
---|---|---|---|
New soil NOx parameterization | Yi Wang (U. Iowa) Jun Wang (U. Iowa) |
Emissions | |
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 | |
ISORROPIA-lite | Becky Alexander (UW) | Aerosols | |
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 | |
Extend the IMI system to other trace gases | Lucas Estrada (Harvard) | Adjoint capabilities |
|
TOMAS WRF-GC in regional Thailand simulation | Win Trivitayanurak (Chulalongkorn U) | Aerosols |