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

On this page we list the current priorities for GEOS-Chem development. This list was compiled by the user Working Groups at the last [http://acmg.seas.harvard.edu/geos/meetings/2013/index.html 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.

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 ===

{| border=1 cellspacing=0 cellpadding=5

!width="400px"|Item

!width="300px"|Author(s)

!width="400px"|Status

|Approved 16 Oct 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02a|v9-02a]]); awaiting release

|[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]]

|[[EPA/NEI05_North_American_emissions|EPA/NEI2005 Hg emissions for US]]

|Lyatt Jaeglé (U. Washington)

|Lyatt Jaeglé (U. Washington)

|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release

|[[Mercury#Updated Hg.280.29 oxidation kinetics|Updated Hg(0) oxidation kinetics]]

|Approved 29 Nov 2012 ([[GEOS-Chem v9-02 benchmark history#v9-02c|v9-02c]]); awaiting release

|[[Mercury#Capability to use GEOS-Chem Br.2FBrO fields in Hg simulation|Capability to use GEOS-Chem Br/BrO fields in Hg simulation]]

|[[ChemTelecon20111202|Improvements to isoprene chemistry, standardization of Paulot Scheme]]

|[[NOx-Ox-HC-aerosol#Removal of NOx and Ox partitioning|Removal of NOx-Ox partitioning]]

|[[TOMAS_aerosol_microphysics#Update_April_2013|Inline the TOMAS aerosol microphysics code into standard code]]

|[[CH4 simulation#Update CH4 emissions to EDGAR v4.2|EDGAR v4.2 emissions for CH4 simulation]]

||Approved 30 Jul 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02m|v9-02m]]); awaiting release

|-

||Approved 30 Jul 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02m|v9-02m]]); awaiting release

|-

|[[Aircraft emissions#MIT aviation emissions inventory|AEIC aircraft emissions inventory]]

|Sebastian D. Eastham(MIT)<br>Steven Barrett (MIT)

|Approved 12 Aug 2013 ([[GEOS-Chem v9-02 benchmark history#v9-02n|v9-02n]]); awaiting release

|-

|[[Secondary organic aerosols#SOA simulation with semi-volatile POA|Expanded SOA]]

|[[Aerosol optical properties#Better representation of OC growth with RH and correction to sulfate optics|Update jv_spec.dat with better representation of OC growth with RH and correction to sulfate optics]]

*'''''NOTE:''''' The GEOS-5 "FP" product (aka GEOS-5.11.0) is what we will use for the 0.25&deg; x 0.3125&deg; 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.

|-

|Nested-grid model at 0.25&deg; x 0.3125&deg; resolution

*To be included in [[GEOS-Chem v9-02|v9-02]]

*In benchmarking process, awaiting final approval

|-

|High-resolution emissions for above nested-grid model

|Yuxuan Wang (Tsinghua)

*To be included in [[GEOS-Chem v9-02|v9-02]]

|-

|[[Debugging with the GEOS-Chem unit tester|Unit testing]]

|[[GEOS-Chem Support Team]]

Available as an external package in [[GEOS-Chem v9-02 benchmark history#v9-02o|GEOS-Chem v9-02o]] and later versions

|-

=== Ready to go in ===

{| border=1 cellspacing=0 cellpadding=5

|- bgcolor="#cccccc"

!width="400px"|Item

!width="300px"|Author(s)

!width="400px"|Status

|- bgcolor="#ccffff"

!width="400px"|Structural/programming updates

!width="300px"|

!width="400px"|

|-

|[[Grid-independent GEOS-Chem]]: Packaging ESMF/MAPL

|[[GEOS-Chem Support Team]]<br>GMAO

*Need to synchronize the latest GIGC development back into the existing G-C repository

*This will be an ongoing process that will occur simultaneously as the following science updates are brought into GEOS-Chem.

|- bgcolor="#ccffff"

!width="400px"|Science updates

!width="300px"|

!width="400px"|

|-

|[[UCX chemistry mechanism|UCX strat chem mechanism]], includes:

*Delivered to [[GEOS-Chem Support Team|GCST]] (Oct 2013)

|-

|[[Coupling GEOS-Chem with RRTMG|Online Radiative Transfer in GEOS-Chem]]

|David Ridley (MIT)<br>Colette Heald (MIT)

*Delivered to [[GEOS-Chem Support Team|GCST]] (Summer 2013)

*This has already been added to the research version of GEOS-Chem used to produce the SEAC4RS hindcasts

|-

|[[MEGAN_biogenic_emissions#Update_to_MEGAN2.1_.28Guenther_et_al..2C_2012.29|Update to MEGAN2.1]]

|Dylan Millet (U. Minnesota)

*Delivered to [[GEOS-Chem Support Team|GCST]] (Summer 2013)

*This has already been added to the research version of GEOS-Chem used to produce the SEAC4RS hindcasts

|-

|[[EDGAR anthropogenic emissions|Update to EDGAR 4.2 anthropogenic emissions]]

|Meng Li and Qiang Zhang (Tsinghua)<br>Sajeev Philip (Dalhousie)

|-

|[[PAN|PAN / Organics]]

|Emily Fischer (CSU)

*Delivered to [[GEOS-Chem Support Team|GCST]] (May 2013)

|-

|CO2 direct effect on isoprene emissions

|Amos Tai (City University of Hong Kong)

|-

|Arctic Hg cycling

|Jenny Fisher (Wollongong)

|-

|Criegee intermediate

|Dylan Millet (U. Minnesota)

|-

|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Impaction scavenging for hydrophobic BC]]

|Qiaoqiao Wang (Harvard)

|-

|[[Wet_deposition#Impaction_scavenging_for_hydrophobic_BC_and_homogeneous_IN_removal|Homogeneous IN removal]]

|Qiaoqiao Wang (Harvard)

|-

|MASAGE NH3 inventory

|Fabien Paulot (Harvard)

|-

|HTAP and hi-res Asian emissions

|Qiang Zhang (Tsinghua U.)

|-

|Two-way coupling for nested grid simulations

|Qiang Zhang (Tsinghua U.)

|-

|Improve temporal resolution of anthropogenic CO2 sources

|Ray Nassar (Environment Canada)

|-

|Replace CASA CO2 biosphere climatology with year-specific fluxes

|Ray Nassar (Environment Canada)<br>Dylan Jones (U. Toronto)

|'''''Ray Nassar wrote:'''''

|-

|-

|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)

|-

|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)

|-

|[http://acmg.seas.harvard.edu/publications/murray.2013.jgr.pdf Interannual lightning]

|Lee Murray (Harvard)

|-

|[[Biomass_burning_emissions#FINNv1|FINN biomass burning emissions]]

|Jenny Fisher (Wollongong)<br>Min Huang (JPL)

*This has already been added to the research version of GEOS-Chem used to produce the SEAC4RS hindcasts

--[[User:Bmy|Bob Y.]] 10:53, 18 December 2013 (EST)

=== Almost there (< 6 months) ===

{| border=1 cellspacing=0 cellpadding=5

!width="400px"|Item

!width="300px"|Author(s)

!width="400px"|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)<br>Christoph Keller (Harvard)

|-

|Benchmark procedure for nested model

|[[Nested Model Working Group]]

|-

|TOMAS parallelization

|Sal Farina (CSU)<br>Jeff Pierce (CSU)

|-

|Reduced TOMAS (12/15 bins)

|Sal Farina (CSU)<br>Jeff Pierce (CSU)

|-

|APM v2, synch with v9-02

|Fangqun Yu (SUNY Albany)

|-

|Retain native resolution 2D surface winds

|David Ridley (MIT)<br>[[GEOS-Chem Support Team]]

|-

|FLEXCHEM

|Mat Evans (York)<br>Mike Long (Harvard)

|-

|Develop new coding standards

|[[GEOS-Chem Support Team]]

|-

|[[Grid-independent GEOS-Chem]]: Dry deposition

|[[GEOS-Chem Support Team]]<br>GMAO

|-

|[[Grid-Independent GEOS-Chem: Emissions Component|Grid-independent GEOS-Chem: Emissions (aka HEMCO)]]

|Christoph Keller (Harvard)<br>[[GEOS-Chem Support Team]]<br>GMAO

*Currently being implemented into the NASA GEOS5-GCM

|-

|[[Grid-independent GEOS-Chem]]: NetCDF I/O

|[[GEOS-Chem Support Team]]

|-

|CMS CO2 ocean fluxes

|Kevin Bowman (JPL)

|-

|Dynamic subsurface ocean

|Helen Amos (Harvard)

|-

|[[POPs simulation#PAH simulation|Updates to PAH code]]

|Carey Friedman (MIT)<br>Helen Amos (Harvard)

|-

|Fix for CH4 concentrations after 2008

|Lee Murray (Harvard)

|-

|Sub-domain within the nested-grid domain

|Yuxuan Wang (Tsinghua)<br>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)<br>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 [[Mercury#GTMM|GTMM]]

|Bess Corbitt (Harvard)

|-

|Dust PDF for global simulations

|David Ridley (MIT)

|-

|Benchmark for aerosol deposition

|[[Aerosols overview: projects and developments|Aerosols Working Group]]

--[[User:Bmy|Bob Y.]] 10:47, 18 December 2013 (EST)

=== Over the horizon (6-12 months) ===

!width="400px"|Item

!width="300px"|Author(s)

!width="400px"|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

|[[GEOS-Chem Support Team|GCST]] needs help from community

|-

|[[Grid-independent GEOS-Chem]]: Transport

|TBD

|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)<br>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)

--[[User:Melissa Payer|Melissa Sulprizio]] 15:33, 21 October 2013 (EDT)

=== Longer term (12-24 months)===

!width="400px"|Item

!width="300px"|Author(s)

!width="400px"|Status

|-

|Coupling to 3D ocean: MIT ocean GCM

|Yanxu Zhang (Harvard)

|-

|[[Python code for GEOS-Chem|Python interface]]

|Beno&icirc;t Bovy (U. Li&egrave;ge-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)

|-

|Tom&aacute;s Sherwen (York)

|-

|Harmonization of aerosol optics (including water uptake)

|David Ridley(MIT)<br>Colette Heald (MIT)<br>Peter Adams (Carnegie Mellon)<br>Fangqun Yu (SUNY Albany)<br>Gabriele Curci (U. L'Aquila)<br>Randall Martin (Dalhousie)

|-

|[[Grid-independent GEOS-Chem]]: Ocean interface

|Yanxu Zhang (Harvard)

|-

|Updated LAI

|Kevin Bowman (JPL)<br>Folkert Boersma (KNMI)

|-

|Merge dicarbonyl simulation into standard simulation

|Tzung-May Fu (Peking)

|-

|Global 0.5x0.667 capability for CO2/CH4

|Liang Feng (Edinburgh)<br>Dylan Jones (U. Toronto)

|-

|Dynamic multiple boxes subsurface Arctic Ocean

|Helen Amos (Harvard)<br>Anne Soerensen (Harvard)