GEOS-Chem model development priorities

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Revision as of 20:17, 2 September 2020 by Melissa Payer (Talk | contribs) (Over the horizon (6-12 months))

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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.

We also invite you to view our GEOS-Chem Support Team project management board on Trello.com, which shows the current GCST workflow.

Priorities assigned to upcoming GEOS-Chem versions

13.0.0

This version is now under development. Please see the GEOS-Chem 13 wiki page for more details.

Priorities not yet assigned to a particular version

The following items have been identified as priorities for GEOS-Chem, but have not yet been assigned to a particular GEOS-Chem version.

Ready to go in

Feature Submitted by Type Notes
Improved wet scavenging (Luo et al., 2020) Gan Luo (Albany)
Fanqun Yu (Albany)
Science
  • Gan and Fangqun are ready to submit their code upon GCST's request
Implement H2 chemistry in UCX Chris Holmes (FSU) Science
Stratospheric HCN chemistry Armin Kleinbohl (JPL)
Debra Weisenstein (Harvard, retired)
Science
  • Delivered to GCST (Jun 2020)
HMS chemistry Jonathan Moch (Harvard) Science
Trace metal simulation Junwei Xu (Dalhousie) Science Updated Aug 2020
Blowing snow emissions of sea salt and bromine Lyatt Jaegle (UW) Science
  • Delivered to GCST (Jun 2020)
Offline CLM Harmonization Anthony Wong (BU)
Jeff Geddes (BU)
Science
Updated Yuan/BNU MODIS LAI product (2000-2019) Jenny Fisher (U. Wollongong) Science
  • Processing scripts delivered to GCST (Aug 2020)
MEGAN3 Sam Silva (MIT) Science
GC-YIBs biosphere-atmospheric chemistry coupled model Xu Yue (NUIST) Science Updated Aug 2020

Almost there (< 6 months)

Item Author(s) Type Notes
Distribute emissions vertically in the boundary layer Barron Henderson (EPA)
GCST
Structural &
Science
Provide climatologies for lightning NOx, volcano, and open fire emissions GCST Science
C2H4 and C2H2 chemistry Kelvin Bates (Harvard)
Ke Li (Harvard)
Science Updated Sep 2020
Diagnostic to archive XCO2, XCO, and XCH4 Dylan Jones (Toronto) Science
Provide archived TCR-2 GEOS-Chem OH fields for carbon simulations Kazu Miyazaki (JPL) Science
Extend UCX into the mesosphere Sebastian Eastham (MIT)
Eric Fleming (NASA GMAO)
Science
BrC aging Xuan Wang (Harvard)
Melanie Hammer(Dalhousie)
Science
Update of US emissions to NEI16 Barron Henderson (EPA) Science
One-Way Coupling w/ GISS ModelE3 Lee Murray (Rochester)
Eric Leibensperger (SUNY Plattsburgh)
Structural
Shared Socioeconomic Pathways Emission Inventories Hong Liao (NUIST) Science
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Amos Tai (CUHK) Science Updated Aug 2020


Rediagnosis of RAS convection in GEOS-Chem Tailong He (Toronto)
Dylan Jones (Toronto)
Andrea Molod (NASA/GMAO)
Science Updated Aug 2020
  • Work is finished and a manuscript is in preparation.
Read-in of native GEOS output in GCHP WUStL GCST Science Added Sep 2020
Adoption of the Spack package manager for dependency management Harvard GCST Structural Added Sep 2020

Over the horizon (6-12 months)

Item Author(s) Type Notes


Aromatic VOC chemistry Kelvin Bates (Harvard)
Ke Li (Harvard)
Science Updated Sep 2020
Update OCS simulation in the standard code Kevin Bowman (JPL) Science
Methylethylketone chemistry Jared Brewer (CSU) Science
Add sulfate dependence to SOA yield from isoprene in simple SOA Eloise Marais (Leicester) Science
Updated Hg chemistry:
  • Streamlining of Hg simulation through HEMCO and KPP
  • Hg gas-phase photo-reduction
Viral Shah (Harvard)
Colin Thackray (Harvard)
Science Updated July 2020
GTMM updates Ben Geyman (Harvard) Science Updated Aug 2020
Canopy Physics Model Sam Silva (MIT) Structural
Landcover/Fire Emissions Offline LPJlmfire Loretta Mickley (Harvard) Science
Integrating GMAO's tracer gridded component in GCHP Sebastian Eastham (MIT) Structural Added Sep 2020
Mass flux-based transport in GCHP Sebastian Eastham (MIT) Science Added Sep 2020

Longer term (12-24 months)

Item Author(s) Type Notes
Implement isotope simulation for CO and CH4 in GCHP Lee Murray (Rochester) Science
Migrate LETFK DA scheme to GCHP Kazu Miyazaki (JPL) Science
Super fast chemistry scheme Benjamin Brown-Steiner (AER)
Makoto Kelp (Harvard)
Science
Add non-volatile cations to ISORROPIA Becky Alexander (UW) Science Updated Aug 2020
DMS oxidation scheme updating Becky Alexander (UW)
Qianjie Chen (UW)
Science Updated Aug 2020
  • 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)
Science Updated Aug 2020
  • Delayed - implemented pre-KPP
Streamlining of specialty simulations through HEMCO and KPP GCST
Chris Holmes (FSU)
Peter Ivatt (York) for PAH
Beata Bukosa (Wollongong) for joint CO-CO2-CH4
Science
Hg in WRF-GC Yanxu Zhang (Nanjing) Science Updated Aug 2020
Hg with blowing snow Yanxu Xhang (Nanjing) Science Updated Aug 2020
Hg isotopes Xiaotian Xu, Yanxu Xhang (Nanjing) Science Added Aug 2020
Hg in CESM CAM-CHEM Peng Zhang, Yanxu Xhang (Nanjing) Science Added Aug 2020
Updated treatment of Hg in ocean Chris Holmes (FSU) Science
Complex / multicomplex variables Shannon Capps (Drexel) Structural
Archived CMIP6 Met Products for GEOS-Chem Input Lee Murray (Rochester) Science

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