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

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(Feature integration in progress)
(Feature integration in progress)
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|Lizzie Lundgren (GCST)
|Lizzie Lundgren (GCST)

Revision as of 17:36, 23 June 2021

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.

Merged and awaiting release

Feature Contributor(s) Model scope Notes

Feature integration in progress

Feature Contributor(s) Model scope Ease of implementation Notes
Update US emissions to NEI2016 Barron Henderson (EPA)
Lyssa Freese (MIT)
  • Files available at this ftp site. Barron writes, "They have not yet been used in a publication, so I caution users to look for anything and report back."
CEDS v2 emissions through 2019 Patrick Campbell (NOAA-ARL) Emissions
Updated Yuan/BNU MODIS LAI product (2000-2019) Jenny Fisher (U. Wollongong) Emissions
Dry deposition
  • Processing scripts delivered to GCST (Aug 2020)
Updates to enable automated run directory creation GCST Run directory
Modularize FAST-JX Lizzie Lundgren (GCST) Structural

Feature integration in the queue

Feature Contributor(s) Model scope Ease of implementation Notes
Updates that will affect full-chemistry simulations
Canopy Physics Model Sam Silva (MIT) Science
Dust emissions from Meng et al. (in review) Jun Meng (WUStL) Emissions
Improved wet scavenging from Luo et al. (2020) (as option) Gan Luo (Albany)
Fangqun Yu (Albany)
Wet deposition
Updated Rn-222 emissions Bo Zhang Emissions
Updated offline emissions Yanshun Li (WUStL)
Hongjian Weng (PKU)
Provide recommended rather than hard-coded scaling factors for online emissions GCST Emissions
Provide climatologies for lightning NOx, volcano, and open fire emissions GCST Emissions
Trace metal simulation Junwei Xu (Dalhousie) Specialty simulation
C2H4 and C2H2 chemistry Kelvin Bates (Harvard)
Ke Li (Harvard)
HMS chemistry Jonathan Moch (Harvard) Chemistry
Blowing snow emissions of sea salt and sea salt bromide Lyatt Jaegle (UW) Emissions
Updated aerosol dry deposition Jeff Pierce (CSU) Dry deposition
Adaptive chemical solver (as option) Lu Shen (Harvard) Chemistry
Joint CO2-CO-CH4-OCS simulation Beata Bukosa (NIWA)
Kevin Bowman (JPL)
Specialty simulation

Feature integration not yet prioritized

Feature Contributor(s) Model scope Ease of implementation Notes
Implement H2 chemistry in UCX Chris Holmes (FSU) Chemistry
Stratospheric HCN chemistry Armin Kleinbohl (JPL)
Debra Weisenstein (Harvard, retired)
  • Delivered to GCST (Jun 2020)
MEGAN3 Sam Silva (MIT) Emissions
GC-YIBs biosphere-atmospheric chemistry coupled model Xu Yue (NUIST) Science
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam(CUHK)
Amos Tai (CUHK)
Extend UCX into the mesosphere Sebastian Eastham (MIT)
Eric Fleming (NASA GMAO)
Archived CMIP6 Met Products for GEOS-Chem Input Lee Murray (Rochester) Input data
Updated Hg chemistry Viral Shah (Harvard)
Colin Thackray (Harvard)
Landcover/Fire Emissions Offline LPJlmfire Loretta Mickley (Harvard)
Yang Li (Harvard)

Almost there (< 6 months)

Feature Contributor(s) Model scope Notes
Diagnostic to archive XCO2, XCO, and XCH4 Dylan Jones (Toronto) Diagnostic
Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations Kazu Miyazaki (JPL) Input data
Aromatic VOC chemistry Kelvin Bates (Harvard)
Ke Li (Harvard)
BrC aging Xuan Wang (Harvard)
Melanie Hammer(Dalhousie)
Shared Socioeconomic Pathways Emission Inventories Hong Liao (NUIST) Emissions

Rediagnosis of RAS convection in GEOS-Chem Tailong He (Toronto)
Dylan Jones (Toronto)
Andrea Molod (NASA/GMAO)
  • Work is finished and a manuscript is in preparation.
Read-in of native GEOS output in GCHP WUStL GCST Input data
Modularization of GEOS-Chem: FAST-JX as proof-of-concept Lizzie Lundgren (GCST) Structural
Change GCHP advection inputs to use total pressure and mixing ratio rather than dry Sebastian Eastham (MIT) GCHP
Add capability to read mass fluxes for use in advection Sebastian Eastham (MIT) GCHP
Input data

Over the horizon (6-12 months)

Feature Contributor(s) Model scope Notes
Methylethylketone chemistry Jared Brewer (CSU) Chemistry
Add sulfate dependence to SOA yield from isoprene in simple SOA Eloise Marais (Leicester) Chemistry
GTMM updates Ben Geyman (Harvard) Hg simulation

Integrating GMAO's tracer gridded component in GCHP Christoph Keller (NASA GMAO) Transport Tracer simulation
Streamlining of specialty simulations through HEMCO and KPP GCST Chemistry, Specialty simulations

Longer term (12-24 months)

Feature Contributor(s) Model scope Notes
GCHP Adjoint Daven Henze (CU Boulder) Structural
Implement isotope simulation for CO and CH4 in GCHP Lee Murray (Rochester) Specialty simulation
Migrate LETFK DA scheme to GCHP Kazu Miyazaki (JPL) Structural
Super fast chemistry scheme Benjamin Brown-Steiner (AER)
Makoto Kelp (Harvard)
  • SF mechanism has been implemented and benchmarked in GEOS-Chem 12.0.0. This mechanism is of interest for those groups wanting fast global simulation of oxidation fields in GEOS-Chem simulations focused on aerosol microphysics.
  • The machine-learned chemical solver is still probably 12 months away from online implementation into GEOS-Chem.
Add non-volatile cations to ISORROPIA Becky Alexander (UW) Aerosols
DMS oxidation scheme updating Becky Alexander (UW)
Qianjie Chen (UW)
  • Delayed - implemented pre-KPP
  • Currently bring implemented in KPP by UC Riverside group
Heterogeneous sulfate production Lin Zhang (PKU)
Becky Alexander (UW)
Yuxuan Wang (U. Houston)
  • Delayed - implemented pre-KPP
Hg in WRF-GC Yanxu Zhang (Nanjing) Hg simulation
Hg with blowing snow Yanxu Xhang (Nanjing) Emissions, Hg simulation
Hg isotopes Xiaotian Xu, Yanxu Xhang (Nanjing) Hg simulation
Hg in CESM CAM-CHEM Peng Zhang, Yanxu Xhang (Nanjing) Hg simulation
Complex / multicomplex variables Shannon Capps (Drexel) Structural

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