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

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(List of priorities as of August 2013)
(Almost there (< 6 months))
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|Online GCRT
|[[Coupling GEOS-Chem with RRTMG|Online GCRT]]
|David Ridley (MIT)<br>Colette Heald (MIT)
|David Ridley (MIT)<br>Colette Heald (MIT)

Revision as of 22:03, 8 October 2013

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 October 2013

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
Correction for GEOS-5 PBL heights Sajeev Philip (Dalhousie) Approved 16 Oct 2012 (v9-02a); awaiting release
New soil NOx emission module Rynda Hudman (UC Berkeley)
Neil Moore (Dalhousie)
Bram Maasakkers (Eindhoven)
Approved 29 Oct 2012 (v9-02b); awaiting release
EPA/NEI2005 Hg emissions for US Lyatt Jaeglé (U. Washington) Approved 29 Nov 2012 (v9-02c); awaiting release
Streets future Hg emissions Bess Corbitt (Harvard) Approved 29 Nov 2012 (v9-02c); awaiting release
Nested-grid Hg simulation Lyatt Jaeglé (U. Washington) Approved 29 Nov 2012 (v9-02c); awaiting release
Updated Hg(0) oxidation kinetics Bess Corbitt (Harvard)
Justin Parrella (Harvard)
Approved 29 Nov 2012 (v9-02c); awaiting release
Capability to use GEOS-Chem Br/BrO fields in Hg simulation Bess Corbitt (Harvard)
Justin Parrella (Harvard)
Approved 29 Nov 2012 (v9-02c); awaiting release
POPs simulation: Polycyclic aromatic hydrocarbons Carey Friedman (MIT) Approved 29 Nov 2012 (v9-02c); awaiting release
Inorganic chemistry updates Mat Evans (York) Approved 07 Feb 2013 (v9-02f); awaiting release
Methyl peroxy nitrate (MPN) chemistry Ellie Browne (UC Berkeley) Approved 07 Feb 2013 (v9-02f); awaiting release
Fix RO2+HO2 rate constant Fabien Paulot (Harvard) Approved 22 Mar 2013 (v9-02g); awaiting release
Improvements to isoprene chemistry, standardization of Paulot Scheme Fabien Paulot (Harvard)
Eloise Marais (Harvard)
Jingqiu Mao (NOAA/GFDL)
Mat Evans (York)
Approved 22 Mar 2013 (v9-02g); awaiting release
Removal of NOx-Ox partitioning GEOS-Chem Support Team Approved 15 May 2013 (v9-02h); awaiting release
Inhibition of N2O5 hydrolysis by aerosol nitrate Lin Zhang (Peking University) Approved 17 May 2013 (v9-02i); awaiting release
Improved HO2 uptake by aerosol Jingqiu Mao (NOAA/GFDL) Approved 28 May 2013 (v9-02j); awaiting release
Grid-independent GEOS-Chem: Chemistry GEOS-Chem Support Team
Approved 07 Jun 2013 (v9-02k); awaiting release
Inline the TOMAS aerosol microphysics code into standard code Sal Farina (CSU) Approved 07 Jun 2013 (v9-02k); awaiting release
Updated Canadian NH3 inventory Wai-Ho Lo (Dalhousie) Approved 26 Jun 2013 (v9-02l); awaiting release
Updated NH3 seasonal scaling factors over the US Lin Zhang (Peking University) Approved 26 Jun 2013 (v9-02l); awaiting release
RCP emission scenarios Chris Holmes (UC Irvine) Approved 30 Jul 2013 (v9-02m); awaiting release
EDGAR v4.2 emissions for CH4 simulation Kevin Wecht (Harvard) Approved 30 Jul 2013 (v9-02m); awaiting release
Update anthropogenic scale factors through 2010 Aaron van Donkelaar (Dalhousie) Approved 30 Jul 2013 (v9-02m); awaiting release
AEIC aircraft emissions inventory Sebastian D. Eastham(MIT)
Steven Barrett (MIT)
Approved 12 Aug 2013 (v9-02n); awaiting release
Expanded SOA Havala Pye (EPA/ORD) Approved 03 Sep 2013 (v9-02o); awaiting release
Cloud water pH for sulfate formation Becky Alexander (U. Washington) Approved 13 Sep 2013 (v9-02p); awaiting release
Update jv_spec.dat with better representation of OC growth with RH and correction to sulfate optics David Ridley (MIT)
Randall Martin (Dalhousie)
Approved 17 Sep 2013 (v9-02q); awaiting release
Acid uptake on dust aerosols T. Duncan Fairlie (NASA/LARC) To be included in v9-02
Global simulations with GEOS-FP met data product from GMAO GEOS-Chem Support Team To be included in v9-02
  • NOTE: The GEOS-5 "FP" product (aka GEOS-5.11.0) is what we will use for the 0.25° x 0.3125° nested simulations. To run the nested simulations (the 2 items listed below), we also must be able to run the global simulations with this met data product in order to save out transport boundary conditons.
  • Much of this development work has already been done in advance of the SEAC4RS aircraft mission.
Nested-grid model at 0.25° x 0.3125° resolution Yuxuan Wang (Tsinghua) To be included in v9-02
High-resolution emissions for above nested-grid model Yuxuan Wang (Tsinghua) To be included in v9-02
Update to EDGAR 4.2 anthropogenic emissions Meng Li and Qiang Zhang (Tsinghua)
Sajeev Philip (Dalhousie)
To be included in v9-02
Improve temporal resolution of anthropogenic CO2 sources Ray Nassar (Environment Canada) To be included in v9-02
Replace CASA CO2 biosphere climatology with year-specific fluxes Ray Nassar (Environment Canada)
Dylan Jones (U. Toronto)
To be included in v9-02

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.

--Melissa Sulprizio 16:38, 13 September 2013 (EDT)

Ready to go in

Item Author(s) Status
Update to MEGAN2.1 Dylan Millet (U. Minnesota)
UNEP 2010 anthropogenic Hg emissions Shaojie Song (MIT)
Historical anthropogenic atmospheric emissions of Hg Bess Corbitt (Harvard)
Subsurface ocean Hg concentration update Anne Soerensen (Harvard)
NEI 2008 Hg emission inventory Yanxu Zhang (Harvard)
NEI 2008 emissions with hourly resolution Katie Travis (Harvard)
CO2 direct effect on isoprene emissions Amos Tai (MIT)
PAN / Organics Emily Fischer (Harvard)
Arctic Hg cycling Jenny Fisher (Wollongong)
Criegee intermediate Dylan Millet (U. Minnesota)
VBS SOA option Rokjin Park (Seoul Nat'l Univ.)
Tagged sulfate and nitrate simulation Becky Alexander (U. Washington)
RRTMG radiative transfer code Fangqun Yu (SUNY Albany)
Interannual lightning Lee Murray (Harvard) Available for GEOS-4, but still needs to be implemented in GEOS-5

--Melissa Payer 09:33, 5 June 2013 (EDT)

Almost there (< 6 months)

Item Author(s) Status
Online PBL height calculation Sajeev Philip (Dalhousie)
Erica McGrath-Spangler(NASA GSFC)
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)
MASAGE NH3 emissions Fabien Paulot (Harvard)
Benchmark procedure for nested model Nested Model Working Group
Online GCRT David Ridley (MIT)
Colette Heald (MIT)
TOMAS parallelization Sal Farina (CSU)
Jeff Pierce (CSU)
Reduced TOMAS (12/15 bins) Sal Farina (CSU)
Jeff Pierce (CSU)
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)
Develop new coding standards GEOS-Chem Support Team
Unit testing GEOS-Chem Support Team
Grid-independent GEOS-Chem: Dry deposition GEOS-Chem Support Team
Grid-independent GEOS-Chem: Emissions Christoph Keller (Harvard)
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)
Updates to PAH code Carey Friedman (MIT)
Helen Amos (Harvard)
Fast-JX Sebastian Eastham (MIT)
Jingqiu Mao (NOAA/GFDL)
Fix for CH4 concentrations after 2008 Lee Murray (Harvard)
Two-way nested grid simulation Jintai Lin (Peking)
Sub-domain within the nested-grid domain Yuxuan Wang (Tsinghua)
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)
Impaction scavenging for hydrophobic BC Qiaoqiao Wang (Harvard)
Homogeneous IN removal Qiaoqiao Wang (Harvard)
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)
Stratospheric aerosols Sebastian Eastham (MIT)
Benchmark for aerosol deposition Aerosols Working Group

--Melissa Payer 09:29, 6 June 2013 (EDT)

Over the horizon (6-12 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
Grid-independent GEOS-Chem: Packaging ESMF/MAPL GEOS-Chem Support Team
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)
Primary marine emissions of OA Brett Gantt (NCSU)
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)
FINN biomass burning emissions Jenny Fisher (Wollongong)
Min Huang (JPL)
Merge organics from specialized simulations into the mainline code Dylan Millet (U. Minnesota)

--Melissa Payer 16:41, 14 May 2013 (EDT)

Longer term (12-24 months)

Item Author(s) Status
Coupling to 3D ocean: MIT ocean GCM Yanxu Zhang (Harvard)
Python interface Benoît Bovy (U. Liège-Belgium)
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)
Stratospheric chemistry Sebastian Eastham (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.
Plume in-grid lightning NOx emissions Alicia Gressent (U. Toulouse)

--Melissa Payer 16:41, 14 May 2013 (EDT)