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

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(Awaiting release)
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|Sub-domain within the nested-grid domain
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|Yuxuan Wang (Tsinghua)<br>Jintai Lin (Peking)
|Yuxuan Wang (Tsinghua)<br>Lin Zhang (Peking)<br>Jintai Lin (Peking)

Revision as of 03:37, 1 May 2015

On this page we list the current priorities for GEOS-Chem development. This list was compiled by the user Working Groups at the last International GEOS-Chem Meeting (IGC6) in May 2013 and has been continuously updated since 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.

List of priorities as of March 2015

Items "Awaiting release" will be part of the next version release of GEOS-Chem and are actively being incorporated into the standard model and benchmarked. Other items are in different stages of readiness and will be included in future versions of the model.

Awaiting release

Item Author(s) Status
Science updates
TOMAS parallelization Sal Farina (CSU)
Jeff Pierce (CSU)
GEOS-Chem Support Team
UCX strat chem mechanism, includes: UCX: Sebastian Eastham (MIT)
Fast-JX: Sebastian Eastham (MIT) and Jingqiu Mao (Princeton)
HEMCO emissions component Christoph Keller (Harvard)
GEOS-Chem Support Team
Two-way coupling between global and nested GEOS-Chem models Jintai Lin (Peking U.)
Yingying Yan (Peking U.)
NEI 2008 emissions with hourly resolution Katie Travis (Harvard)
Update to MEGAN2.1 Dylan Millet (U. Minnesota)
Update to EDGAR 4.2 anthropogenic emissions Meng Li and Qiang Zhang (Tsinghua)
Sajeev Philip (Dalhousie)
MASAGE NH3 inventory Fabien Paulot (NOAA, formerly Harvard)
FINN biomass burning emissions Jenny Fisher (Wollongong)
Jingqiu Mao (Princeton)
Christine Wiedinmyer (NCAR)
HTAP global emissions and MIX hi-res Asian emissions Qiang Zhang (Tsinghua U.)
UNEP 2010 anthropogenic Hg emissions Shaojie Song (MIT)
Updates to ship NOx chemistry Chris Holmes (UC Irvine)
Geert Vinken (Eindhoven)
Improve temporal resolution of anthropogenic CO2 sources Ray Nassar (Environment Canada)
Replace CASA CO2 biosphere climatology with year-specific fluxes Ray Nassar (Environment Canada)
Dylan Jones (U. Toronto)
Ray Nassar wrote:
SiB Fluxes are available to replace the old CASA fluxes, courtesy of Janina Messerschmidt et al. New CASA fluxes would also be good, such that the user can select options in the input.geos file.
Online Radiative Transfer in GEOS-Chem David Ridley (MIT)
Colette Heald (MIT)
NEI 2008 Hg emission inventory Yanxu Zhang (Harvard)
  • This update will be added via HEMCO. It can be lumped w/ other emissions updates (order TBD).
  • Postponed until after the GEOS-Chem v10-01 release.
Historical anthropogenic atmospheric emissions of Hg Bess Corbitt (Harvard)
  • Postponed until after the GEOS-Chem v10-01 release.
PAN / Organics Emily Fischer (CSU)
  • Delivered to GCST (May 2013)
Subsurface ocean Hg concentration update Anne Soerensen (Harvard)
  • Postponed until after the GEOS-Chem v10-01 release.
CO2 direct effect on isoprene emissions Amos Tai (City University of Hong Kong)
  • Delivered to GCST (Nov 2013)
  • Postponed until after the GEOS-Chem v10-01 release.
Arctic Hg cycling Jenny Fisher (Wollongong)
  • Code is ready
  • Postponed until after the GEOS-Chem v10-01 release.
Criegee intermediate Dylan Millet (U. Minnesota)
  • This has already been added to the research version of GEOS-Chem used to produce the SEAC4RS hindcasts
  • Postponed until after the GEOS-Chem v10-01 release.
Impaction scavenging for hydrophobic BC Qiaoqiao Wang (Harvard)
  • Delivered to GCST (Nov 2013)
  • Postponed until after the GEOS-Chem v10-01 release.
Homogeneous IN removal Qiaoqiao Wang (Harvard)
  • Delivered to GCST (Nov 2013)
  • Postponed until after the GEOS-Chem v10-01 release.
Acid uptake on dust aerosols T. Duncan Fairlie (NASA/LARC)
  • Delivered to GCST, on hold until post v9-02
  • Postponed until after the GEOS-Chem v10-01 release.
RRTMG radiative transfer code in APM aerosol microphysics Fangqun Yu (SUNY Albany)
  • Postponed until after the GEOS-Chem v10-01 release.
Updates to PAH code Carey Friedman (MIT)
Helen Amos (Harvard)
  • Awaiting delivery of code
VBS SOA option Rokjin Park (Seoul Nat'l Univ.)
  • Postponed until after the GEOS-Chem v10-01 release.
Tagged sulfate and nitrate simulation Becky Alexander (U. Washington)
  • Postponed until after the GEOS-Chem v10-01 release.
Improved dust size distribution scheme Li Zhang (Colorado U.)
Daven Henze (Colorado U.)
  • Delivered to GCST (Jan 2014)
  • Postponed until after the GEOS-Chem v10-01 release.
Structural/programming updates for HPC
Grid-independent GEOS-Chem: Packaging ESMF/MAPL GEOS-Chem Support Team
  • This will be an ongoing process that will occur simultaneously as the above science updates are brought into GEOS-Chem.

--Bob Y. 11:37, 5 March 2015 (EST)

Ready to go in

Item Author(s) Status
Coupling to 3D ocean: OFFTRACK Yanxu Zhang (Harvard)
Dry deposition updates for Hg simulation Bess Corbitt (Harvard)
New Hg soil emissions standard from offline GTMM Bess Corbitt (Harvard)
Pre- and online processing of emissions Qiang Zhang (Tsinghua)
Christoph Keller (Harvard)
Benchmark procedure for nested model Nested Model Working Group
APM v2, synch with v9-02 Fangqun Yu (SUNY Albany)
Retain native resolution 2D surface winds David Ridley (MIT)
GEOS-Chem Support Team
FLEXCHEM Mat Evans (York)
Mike Long (Harvard)
  • Currently need to add heterogeneous chemistry.
  • Looking at Spring 2014 as possible delivery date
Develop new coding standards GEOS-Chem Support Team
Grid-independent GEOS-Chem: Dry deposition GEOS-Chem Support Team
Grid-independent GEOS-Chem: NetCDF I/O GEOS-Chem Support Team
CMS CO2 ocean fluxes Kevin Bowman (JPL)
Dynamic subsurface ocean Helen Amos (Harvard)
Fix for CH4 concentrations after 2008 Lee Murray (Harvard)
Sub-domain within the nested-grid domain Yuxuan Wang (Tsinghua)
Lin Zhang (Peking)
Jintai Lin (Peking)
Offline satellite simulator tool Nested Model Working Group
Metal catalyzed oxidation of SO2 Becky Alexander (U. Washington)
Sulfate production on aerosol haze Yuxuan Wang (Tsinghua)
Rokjin Park (Seoul Nat'l Univ.)
Diurnal variation of NH3 emissions Daven Henze (UC Boulder)
Time-varying Arctic parameterizations Jenny Fisher (Wollongong)
Future US emissions inventories of Hg Amanda Giang (MIT)
Coastal inputs of Hg: Rivers and anthropogenic point sources Helen Amos (Harvard)
Complete revamp of GTMM Bess Corbitt (Harvard)
Dust PDF for global simulations David Ridley (MIT)
Benchmark for aerosol deposition Aerosols Working Group
Primary marine emissions of OA Brett Gantt (NCSU)
Matthew Johnson (NASA ARC)
  • Manuscript submitted to GMD (Aug 2014)
Interannual lightning Lee Murray (Harvard)
  • Available for GEOS-4, but still needs to be implemented in GEOS-5

--Melissa Sulprizio 17:45, 19 August 2014 (EDT)

Almost there (< 6 months)

Item Author(s) Status
Updates to redox chemistry for Hg simulation Bess Corbitt (Harvard)
High-resolution regional emissions Nested Model Working Group
Flexible diagnostic package GEOS-Chem Support Team
Grid-independent GEOS-Chem: Convection TBD GCST needs help from community
Grid-independent GEOS-Chem: Wet scavenging TBD GCST needs help from community
Grid-independent GEOS-Chem: PBL mixing Sajeev Philip (Dalhousie)
Christoph Keller (Harvard)
Grid-independent GEOS-Chem: Transport TBD GCST needs help from community
3D VOC source for tagged CO simulation and enhanced tagging of secondary CO Jenny Fisher (Wollongong)
Satellite diagnostic for XCO2 Andrew Schuh (CSU)
Dynamic precision GEOS-Chem Support Team
Profiling GEOS-Chem TBD
Methylmercury in the surface ocean Anne Soerensen (Harvard)
Recommendations for optimal timesteps Sajeev Philip (Dalhousie)
DMS oxidation scheme updating (DMSO, oxidation by BrO) Tom Breider (Harvard)
Becky Alexander (U. Washington)
More options for terrestrial CO2 fluxes Kevin Bowman (JPL)
Merge organics from specialized simulations into the mainline code Dylan Millet (U. Minnesota)

--Melissa Sulprizio 10:00, 23 January 2014 (EST)

Over the horizon (6-12 months)

Item Author(s) Status
Coupling to 3D ocean: MIT ocean GCM Yanxu Zhang (Harvard)
Python interface Benoît Bovy (U. Liège-Belgium) + others
Uniformity of units GEOS-Chem Support Team
Historical inventory of Hg in products and processes Hannah Horowitz (Harvard)
Better link/coupling to ocean processes Chemistry-Climate Working Group
Better coupling to biogeochemical cycles Chemistry-Climate Working Group
Chemistry feedbacks to vegetation ecosystem Amos Tai (MIT)
Iodine chemistry Tomás Sherwen (York)
Harmonization of aerosol optics (including water uptake) David Ridley(MIT)
Colette Heald (MIT)
Peter Adams (Carnegie Mellon)
Fangqun Yu (SUNY Albany)
Gabriele Curci (U. L'Aquila)
Randall Martin (Dalhousie)
Grid-independent GEOS-Chem: Ocean interface Yanxu Zhang (Harvard)
Updated LAI Kevin Bowman (JPL)
Folkert Boersma (KNMI)
Merge dicarbonyl simulation into standard simulation Tzung-May Fu (Peking)
Global 0.5x0.667 capability for CO2/CH4 Liang Feng (Edinburgh)
Dylan Jones (U. Toronto)
Dynamic multiple boxes subsurface Arctic Ocean Helen Amos (Harvard)
Anne Soerensen (Harvard)
PCB simulation: atmosphere and ocean Carey Friedman (MIT)
Helen Amos (Harvard)
Nighttime isoprene chemistry Rebecca Schwantes (Caltech)
ClNO2 Mat Evans (York)
Dissolved Fe/Cu Matthew Johnson (NCSU)
Jingqiu Mao (NOAA/GFDL)
UV absorption of organics/brown carbon Rokjin Park (Seoul Nat'l Univ.)
CO-CO2-CH4 simulation Dylan Jones (U. Toronto)
Annemarie Fraser (Edinburgh)
Updated HCN simulation Dylan Jones (U. Toronto)
Passive tracer module Jenny Fisher (Wollongong)

Jenny Fisher wrote:

Passive tracers will not (at this stage) be added as a standard feature of GEOS-Chem, but can be implemented by individual users relatively straightforwardly. We have added this to the SEAC4RS research version of GEOS-Chem.
Plume in-grid lightning NOx emissions Alicia Gressent (U. Toulouse)

--Melissa Sulprizio 10:00, 23 January 2014 (EST)

Longer term (12-24 months)


--Melissa Sulprizio 10:00, 23 January 2014 (EST)