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

From Geos-chem
Jump to: navigation, search
(→‎Longer term (> 12 months))
(→‎Feature integration in progress)
Line 1: Line 1:
−
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 (IGC5) in May 2011 and has been continuously updated since based on code readiness and input from the Working Groups and the Steering Committee.
+
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 [https://geos-chem.seas.harvard.edu/geos-working-groups Working Groups] and the [https://geos-chem.seas.harvard.edu/geos-steering-cmte Steering Committee]. For history of past releases see the [[GEOS-Chem_versions|GEOS-Chem Versions wiki page]].
  
−
== List of priorities as of May 2012 ==
+
== Merged and awaiting release ==
  
−
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.
+
See the links below for items merged and awaiting release.
−
=== Awaiting release ===
+
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="300px"|Mergeable at any time
 +
!width="200px"|Version in development
 +
 
 +
|-valign="top"
 +
|align="center"|'''[[GEOS-Chem no-diff-to-benchmark]]'''
 +
|align="center"|'''[[GEOS-Chem 14.4.0]]'''
  
−
{| border=1 cellspacing=0 cellpadding=5
 
−
|- bgcolor="#cccccc"
 
−
!width="400px"|Item
 
−
!width="200px"|Author(s)
 
−
!width="350px"|Status
 
−
|-
 
−
|[[Acetone|Improved acetone simulation]]
 
−
|Emily Fischer (Harvard)
 
−
|Approved 14 Dec 2011 ([[GEOS-Chem v9-01-03 benchmark history#v9-01-03b|v9-01-03b]]); awaiting release
 
−
|-
 
−
|Complete shift of biogenic VOC emissions from GEIA to [[MEGAN biogenic emissions|MEGAN]]; [[Biogenic emissions#Retirement of obsolete GEIA biogenic emissions|retire GEIA ]]
 
−
|Dylan Millet (U. Minnesota)
 
−
|Approved 14 Dec 2011 ([[GEOS-Chem v9-01-03 benchmark history#v9-01-03b|v9-01-03b]]); awaiting release
 
−
|-
 
−
|[[Dry deposition#OVOCs dry deposition|OVOC's dry deposition]]
 
−
|Jingqiu Mao (NOAA/GFDL)
 
−
|Approved 19 Dec 2011 ([[GEOS-Chem v9-01-03 benchmark history#v9-01-03c|v9-01-03c]]); awaiting release
 
−
|-
 
−
|Improved sea salt [[Sea salt aerosols#SST dependent sea salt emissions|emission]] & [[Sea salt aerosols#Updates to sea salt dry deposition|deposition]]
 
−
|Lyatt Jaeglé (U. Washington)
 
−
|Approved 12 Jan 2012 ([[GEOS-Chem v9-01-03 benchmark history#v9-01-03d|v9-01-03d]]); awaiting release
 
−
|-
 
−
|[[Mineral dust aerosols#Sub-micron dust mass partitioning change|Dust submicron size distribution for optics]]
 
−
|David Ridley (Colo. State)
 
−
|Approved 12 Jan 2012 ([[GEOS-Chem v9-01-03 benchmark history#v9-01-03d|v9-01-03d]]); awaiting release
 
−
|-
 
−
|Improved [[Wet deposition#Add scavenging by snow|snow scavenging]] and [[Wet deposition#Updates for aerosol scavenging efficiency|washout parameterization]]
 
−
|Qiaoqiao Wang (Harvard)
 
−
|Approved 02 Feb 2012 ([[GEOS-Chem v9-01-03 benchmark history#v9-01-03e_2|v9-01-03e]]); awaiting release
 
−
|-
 
−
|[[Ship emissions#PARANOX ship plume model|PARANOX ship plume emissions]]
 
−
|Geert Vinken (Eindhoven)
 
−
|Approved 17 Feb 2012 ([[GEOS-Chem v9-01-03 benchmark history#v9-01-03f|v9-01-03f]]); awaiting release
 
−
|-
 
−
|[[Mercury#Hg.28II.29 gas-particle partitioning|Hg(II) gas-aerosol partitioning]]
 
−
|Helen Amos (Harvard)
 
−
|Approved 09 Mar 2012 ([[GEOS-Chem v9-01-03 benchmark history#v9-01-03h|v9-01-03h]]); awaiting release
 
−
|-
 
−
|[[CO2 simulation#Nested-grid CO2 simulation|Nested-grid CO2 simulation]]
 
−
|Yuxuan Wang (Tsinghua U.)
 
−
|Approved 09 Mar 2012 ([[GEOS-Chem v9-01-03 benchmark history#v9-01-03h|v9-01-03h]]); awaiting release
 
−
|-
 
−
|[[Sources and Sinks Working Group#Available Historical and Future Emissions|Historical emission inventories of SO2, NOx, BC, and POA]]
 
−
|Eric Leibensperger (MIT)
 
−
|Approved 09 Mar 2012 ([[GEOS-Chem v9-01-03 benchmark history#v9-01-03h|v9-01-03h]]); awaiting release
 
−
|-
 
−
|[[Implementation_of_RETRO_Anthropogenic_Emissions#RETRO_anthropogenic_ethane_emissions_are_too_low|Replace RETRO C2H6 emissions with emissions from the offline C2H6 simulation]]
 
−
|Yaping Xiao (UNH)
 
−
|Approved 26 Mar 2012 ([[GEOS-Chem v9-01-03 benchmark history#v9-01-03i|v9-01-03i]]); awaiting release
 
−
|-
 
−
|[[Emissions overview#MAP_A2A regridding algorithm|Replace existing regridding routines with the MAP_A2A regridding package]]
 
−
|Matt Cooper (Dalhousie)
 
−
|Approved 27 Apr 2012 ([[GEOS-Chem v9-01-03 benchmark history#v9-01-03k|v9-01-03k]]); awaiting release
 
−
|-
 
−
|[[Biomass burning emissions#GFED3 daily and 3-hourly emissions|Daily and 3-hourly GFED3 biomass emissions]]
 
−
|Prasad Kasibhatla (Duke)
 
−
|Delivered to GCST, slated for v9-01-03l
 
−
|-
 
−
|[[Bromine chemistry mechanism|Tropospheric bromine chemistry]]
 
−
|Justin Parrella (Harvard)
 
−
|Delivered to GCST, slated for v9-01-03m
 
−
|-
 
−
|[[Stratospheric_chemistry|Stratospheric P and k (monthly climatological)]]
 
−
|Lee Murray (Harvard)
 
−
|Code is ready (awaiting delivery to GCST); slated for v9-01-03n
 
−
|-
 
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Payer]] 13:02, 16 April 2012 (EDT)
+
== Feature integration in progress ==
  
−
=== Ready to go in ===
+
Features listed in this table are actively being integrated into GEOS-Chem by the [https://geoschem.github.io/support-team.html GEOS-Chem Support Team]. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.
  
−
{| border=1 cellspacing=0 cellpadding=5
+
{| border=1 cellspacing=0 cellpadding=5  
−
|- bgcolor="#cccccc"
+
|-bgcolor="#CCCCCC"
−
!width="400px"|Item
+
!width="200px"|Feature
−
!width="200px"|Author(s)
+
!width="200px"|Contributor(s)
−
!width="350px"|Status
+
!width="100px"|Model scope
−
|-
+
!width="100px"|Ease of implementation
−
|[[Secondary organic aerosols#SOA simulation with semi-volatile POA|Expanded SOA]]
+
!width="300px"|Notes and References
−
|Havala Pye (EPA/ORD)
+
 
−
|Delivered to GCST, awaiting implementation
+
|-valign="top"
−
|-
+
|GCHP carbon simulation
 +
|Melissa Sulprizio (Harvard)<br>Bob Yantosca (Harvard)
 +
|Carbon
 +
|Medium
 +
|
 +
*[https://github.com/geoschem/geos-chem/pull/1992 geos-chem PR #1992]
 +
*[https://github.com/geoschem/GCHP/issues/339 GCHP Issue #339]
 +
 
 +
|-valign="top"
 +
|KORUS-AQ emissions for East Asia (as an option)
 +
|Katie Travis (NASA)
 +
|Emissions
 +
|Simple
 +
|
 +
 
 +
|-valign="top"
 +
|[https://doi.org/10.7910/DVN/23BRII Global continental chlorine (pCl and HCl) emissions]
 +
|Bingqing Zhang (Georgia Tech)<br>Pengfei Liu (Georgia Tech)
 +
|Emissions
 +
|Simple
 +
|
 +
 
 +
|-valign="top"
 +
|New version of CEDS at 0.1 deg
 +
|Dandan Zhang (WashU)
 +
|Emissions
 +
|Simple
 +
|
 +
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
 +
*'''Currently on hold while an issue with seasonality in the new CEDS data is being investigated'''
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1288 New soil NOx parameterization]
 +
|Yi Wang (U. Iowa)<br>Jun Wang (U. Iowa)
 +
|Emissions
 +
|Medium
 +
|
 +
*[https://github.com/geoschem/geos-chem/issues/1288 geos-chem issue #1288]
 +
*Incorporates new met field TSOIL1
 +
 
 +
|-valign="top"
 +
|Remove differences in GC-Classic when breaking up runs in time
 +
|Lizzie Lundgren (Harvard)
 +
|GC-Classic
 +
|Medium
 +
|
 +
 
 +
|-valign="top"
 +
|GCHP advection diagnostics
 +
|Lizzie Lundgren (Harvard)
 +
|GCHP diagnostics
 +
|Simple
 +
|
 +
*[https://github.com/geoschem/GCHP/pull/395 gchp PR #395]
 +
 
 +
|-valign="top"
 +
|Only convert units for species that need it
 +
|Bob Yantosca (Harvard)
 +
|Unit conversions
 +
|Medium
 +
|
 +
*[https://github.com/geoschem/geos-chem/pull/2072 geos-chem PR #2072]
 +
*'''This update breaks TOMAS, further development is needed'''
  
−
|[[Scale factors for anthropogenic emissions#Anthropogenic NOx scaling factors from OMI|Satellite-based NOx emission trends]]
 
−
|Lok Lamsal (NASA GSFC)
 
−
|Delivered to GCST, awaiting implementation
 
−
|-
 
−
|[[Updating_standard_chemistry_with_JPL_10-6|Inorganic chemistry updates]]
 
−
|Mat Evans (Leeds)
 
−
|Delivered to GCST, awaiting implementation
 
−
|-
 
−
|[[Soil_NOx_emissions#Updated_soil_NOx_emissions_algorithm|New soil NOx emission module]]
 
−
|Rynda Hudman (UC Berkeley)
 
−
|Delivered to GCST, awaiting implementation
 
−
|-
 
−
|Methyl peroxy nitrate (MPN) chemistry
 
−
|Ellie Browne (UC Berkeley)
 
−
|Delivered to GCST, awaiting implementation
 
−
|-
 
−
|[[Mineral_dust_aerosols#Surface_chemistry_on_dust|Acid uptake on dust aerosols]]
 
−
|T. Duncan Fairlie (NASA/LARC)
 
−
|Delivered to GCST, awaiting implementation
 
−
|-
 
−
|Cloudwater pH for sulfate formation
 
−
|Becky Alexander (U. Washington)
 
−
|Delivered to GCST, awaiting implementation
 
−
|-
 
−
|[[EPA/NEI05_North_American_emissions|EPA/NEI2005 Hg emissions for US]]
 
−
|Lyatt Jaegl&eacute; (U. Washington)
 
−
|Delivered to GCST, awaiting implementation
 
−
|-
 
−
|Streets future Hg emissions
 
−
|Bess Corbitt (Harvard)
 
−
|Delivered to GCST, awaiting implementation
 
−
|-
 
−
|[[Mercury#Nested-grid Hg simulation over North America|Nested-grid Hg simulation]]
 
−
|Lyatt Jaegl&eacute; (U. Washington)
 
−
|Delivered to GCST, awaiting implementation
 
−
|-
 
−
|Updated Hg(0) oxidation kinetics
 
−
|Justin Parrella (Harvard)
 
−
|Delivered to GCST, awaiting implementation
 
−
|-
 
−
|Capability to use GEOS-Chem Br/BrO fields in Hg simulation
 
−
|Bess Corbitt (Harvard)<br>Justin Parrella (Harvard)
 
−
|Delivered to GCST, awaiting implementation
 
−
|-
 
−
|Tagged sulfate and nitrate simulation
 
−
|Becky Alexander (U. Washington)
 
−
|Code is ready
 
−
|-
 
−
|Update to EDGAR 4 anthropogenic emissions
 
−
|Qiang Zhang (Tsinghua)
 
−
|Code is ready
 
−
|-
 
−
|[[ChemTelecon20111202|Improved HO2 uptake by aerosol]]
 
−
|Jingqiu Mao (NASA/GFDL)
 
−
|Code is ready
 
−
|-
 
−
|Fix RO2+HO2 rate constant
 
−
|Fabien Paulot (Harvard)
 
−
|globchem.dat is ready
 
−
|-
 
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Payer]] 14:45, 14 March 2012 (EDT)
+
== Prioritized and in the queue ==
  
−
=== Almost there (< 6 months) ===
+
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
  
−
{| border=1 cellspacing=0 cellpadding=5
+
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Ease of implementation
 +
!width="100px"|Delivery status
 +
!width="300px"|Notes and References
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1867 Online H2 chemistry]
 +
|Maria Paula Pérez-Peña (UNSW)<br>Jenny Fisher (UOW)<br>Dylan Millet (UMN)
 +
|Chemistry
 +
|TBD
 +
|Delivered<br>June 2023
 +
|
 +
*[https://acp.copernicus.org/articles/22/12367/2022/acp-22-12367-2022.html Pérez-Peña, M.P. et al., ACP, 2022.]
 +
*Implemented in v12.5, needs to be brought up to current version
 +
 
 +
|-valign="top"
 +
|ALK4 & R4N2 chemistry
 +
|Jared Brewer (UMN)
 +
|Chemistry
 +
|TBD
 +
|Not delivered
 +
|
 +
*[https://github.com/geoschem/geos-chem/issues/1625 geos-chem issue #1625]
 +
*[https://acmg.seas.harvard.edu/files/acmg/files/brewer2022.pdf Brewer, J.F. et al., J. Geophys. Res., submitted 2023.]
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/pull/1983 Updated gravitational settling, dry mass-weighted mean diameters and hygroscopic growth in aerosol dry deposition]
 +
|Yanshun Li (WashU)
 +
|Aerosols
 +
|Simple
 +
|Delivered<br>Oct 2023
 +
|
 +
*[https://acp.copernicus.org/articles/23/12525/2023/acp-23-12525-2023.html Li et al., ACP, 2023.]
 +
*[https://github.com/geoschem/geos-chem/pull/1983 geos-chem PR #1983]
 +
* '''Waiting on code updates from developer'''
 +
 
 +
|-valign="top"
 +
|Mass flux regridding fix in MAPL
 +
|Lizzie Lundgren (Harvard)<br>Seb Eastham (MIT)
 +
|GCHP input regridding
 +
|Medium
 +
|
 +
|
 +
*[https://github.com/GEOS-ESM/MAPL/pull/2056 GEOS-ESM/MAPL PR #2056]
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/1747 Parameterization of SNA and OM dry size]
 +
|Haihui Zhu (WashU)
 +
|Aerosols
 +
|Medium
 +
|Delivered<br>Aug 2023
 +
|
 +
*[https://egusphere.copernicus.org/preprints/2022/egusphere-2022-1292/ Zhu et al., EGUsphere, submitted 2023.]
 +
*[https://github.com/geoschem/geos-chem/pull/1902 geos-chem PR #1902]
 +
*'''Currently on hold, as this update requires further modifications in the Cloud-J repository'''
 +
 
 +
|-valign="top"
 +
|Capture all trop and PBL height changes in budget diagnostics
 +
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
 +
|Diagnostics
 +
|Medium
 +
|
 +
|
 +
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
 +
 
 +
|}
 +
 
 +
== Ready to go in ==
 +
 
 +
Features listed in this table are ready to go in but have either not been delivered or are not yet prioritized for integration into GEOS-Chem.
 +
 
 +
{| border=1 cellspacing=0 cellpadding=5
 +
|-bgcolor="#CCCCCC"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="100px"|Delivery status
 +
!width="300px"|Notes and References
 +
 
 +
|-valign="top"
 +
|Geologic emission of ethane and propane
 +
|Matthew Rowlinson and Mat Evans(York)
 +
|Emissions
 +
|Delivered<br>Jan 2023
 +
|
 +
*Global source from https://doi.org/10.1038/s41561-018-0073-0 with spatial distribution from https://doi.org/10.5194/essd-11-1-2019
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/pull/629 Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange]
 +
|Joey Lam(CUHK)<br>Amos Tai (CUHK)
 +
|Science
 +
|Delivered<br>Feb 2021
 +
|
 +
*[https://github.com/geoschem/geos-chem/pull/629 geos-chem PR #629]
 +
 
 +
|-valign="top"
 +
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
 +
|Yang Li (Baylor University)<br>Loretta Mickley (Harvard)
 +
|Emissions
 +
|Delivered<br>Jul 2021
 +
|
 +
*Data involves many files- need to think about temporal frequency
 +
 
 +
|-valign="top"
 +
|[https://github.com/geoschem/geos-chem/issues/550 MEIC (China regional) for 2000-2017 at 0.5x0.625 deg]
 +
|Shixian Zhai (Harvard)
 +
|Emissions
 +
|Delivered
 +
|
 +
*Need permission from Qiang Zhang (Tsinghua U.) to distribute data
 +
 
 +
|-valign="top"
 +
|DMS Chemistry
 +
|Linia Tashmim (UC Riverside)<br>William Porter (UC Riverside)
 +
|Chemistry
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|Organic acids (RCOOH)
 +
|Katie Travis (NASA)
 +
|Chemistry
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|Improve carbon & nitrogen conservation in reactions
 +
|Kelvin Bates (Harvard)
 +
|Chemistry
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|Blowing snow sea salt in TOMAS
 +
|Betty Croft (Dalhousie)
 +
|Aerosols
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|[https://pubs.rsc.org/en/content/articlelanding/2022/EM/D2EM00019A Australian anthropogenic Hg emissions]
 +
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)<br> Hannah Horowitz (U. Illinois)<br>Viral Shah (Harvard)
 +
|Hg simulation
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|WRF-GC Hg simulation
 +
|Xiaotian Xu (Nanjing U.)<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation<br>WRF-GC
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|Updated HgII gas-partical partitioning
 +
|Kaiyun Liu (Tsinghua U.)<br>Qingru Wu (Tsinghua U.)<br>Shuxiao Wang (Tsinghua U.)
 +
|Hg simulation
 +
|Not delivered
 +
|
 +
*Should be option, not default
 +
 
 +
|-valign="top"
 +
|Dry deposition to F90 (readability)
 +
|Chris Holmes (FSU)
 +
|Dry deposition
 +
|Not delivered
 +
|
 +
 
 +
|}
 +
 
 +
== Almost there (< 6 months) ==
 +
 
 +
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.
 +
 
 +
{|border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
−
!width="400px"|Item
+
!width="200px"|Feature
−
!width="200px"|Author(s)
+
!width="200px"|Contributor(s)
−
!width="350px"|Status
+
!width="100px"|Model scope
−
|-
+
!width="420px"|Notes and References
−
|[[Aircraft_emissions#FAA_aircraft_emissions_inventory|FAA/AEDT aircraft emissions inventory]]
+
 
−
|Steven Barrett et al (MIT)
+
|-valign="top"
−
|Code delivered to [[GEOS-Chem Support Team|GCST]], on hold
+
|Replace ISORROPIA with [https://gmd.copernicus.org/preprints/gmd-2023-159/gmd-2023-159.pdf HTEPv1.0]
−
|-
+
|Seb Eastham (MIT)<br>Lizzie Lundgren (Harvard)
−
|Longwave & shortwave RF codes for chemistry-climate
+
|Aerosol thermodynamics
−
|Fangqun Yu (SUNY Albany)
+
 
|
 
|
−
|-
+
*Will be git submodule
−
|[[APM aerosol microphysics|APM]] capability for nested grid
+
−
|Fangqun Yu (SUNY Albany)
+
−
|
+
−
|-
+
  
−
|Interannual lightning
+
|-valign="top"
−
|Lee Murray (Harvard)
+
|PPN+hv, PPN+OH
 +
|Robert Ryan (UCL)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Primary marine OA emissions
+
|-valign="top"
−
|Kateryna Lapina (CSU)
+
|MBO
−
|
+
|Michael Vermeuel (UMN)
−
|-
+
|Chemistry
−
|Implement GISS advection scheme for GISS-driven applications
+
−
|[[GEOS-Chem Support Team]]
+
−
|
+
−
|-
+
−
|Updated [[Dicarbonyls simulation|dicarbonyl simulation]]
+
−
|May Fu (Peking U.)
+
−
|  
+
−
|-
+
−
|Satellite diagnostic for XCO2
+
−
|Liang Feng (U. Edinburgh)
+
−
|
+
−
|-
+
−
|Improve temporal resolution of anthropogenic CO2 sources
+
−
|Ray Nassar (Environment Canada)
+
−
|
+
−
|-
+
−
|[[ChemTelecon20111202|Improvements to isoprene chemistry, standardization of Paulot Scheme]]
+
−
|Fabien Paulot (Harvard)<br>Eloise Marais (Harvard)<br>Jingqiu Mao (NASA/GFDL)<br>Mat Evans (Leeds)
+
 
|
 
|
−
|-
+
 
−
|[[ChemTelecon20111202|RO2+NO3 chemistry updates]]
+
|-valign="top"
−
|Mat Evans (Leeds)
+
|Initial conditions for CH4 correcting background and stratospheric biases
 +
|Todd Mooring (Harvard)
 +
|Methane simulation
 
|
 
|
−
|-
+
 
−
|[[ChemTelecon20111202|Inhibition of N2O5 hydrolysis by aerosol nitrate]]
+
|-valign="top"
−
|Lin Zhang (Harvard)
+
|Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism
 +
|Bob Yantosca (Harvard)
 +
|Aerosols<br>Structural
 
|
 
|
−
|-
+
*Ongoing
−
|[[ChemTelecon20111202|Improved ROOH formation and chemistry]]
+
 
−
|Fabien Paulot (Harvard)<br>Mat Evans (Leeds)
+
|-valign="top"
 +
|Re-binning of off-line sea salt and dust for use in TOMAS
 +
|Betty Croft (Dalhousie)
 +
|Aerosols
 
|
 
|
−
|-
+
 
−
|Unified emissions pre-processor
+
|-valign="top"
−
|Qiang Zhang (Tsinghua)
+
|Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90
−
|  
+
|Betty Croft (Dalhousie)
−
|-
+
|Aerosols
−
|Update Asian emissions
+
|
−
|Qiang Zhang (Tsinghua)
+
 
−
|  
+
|-valign="top"
−
|-
+
|ML algorithms for bulk aerosols
 +
|Arshad Nair (SUNY Albany)<br>Fangqun Yu (SUNY Albany)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|PM2.5 and PM10 calculations: aerodynamic vs geometric diameters
 +
|Shixian Zhai (Harvard)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Updates to Hodzic SOA scheme
 +
|Jared Brewer (Harvard)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Automated reduction in isoprene scheme
 +
|Dan Westervelt (Lamont-Doherty)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Brown carbon chemsitry
 +
|Jingqiu Mao (U. Alaska)<br>Xuan Wang (CUHK)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|GEOS resolution and subgrid convection - Part 2 RAS parameter tuning
 +
|Tailong He (Toronto)<br>Dylan Jones (Toronto)<br>Andrea Molod (NASA GMAO)
 +
|Convection
 +
|
 +
 
 +
|-valign="top"
 +
|High-res top-down TROPOMI-derived seasonal mean NOx emissions for China
 +
|Jintai Lin (PKU)
 +
|Emissions
 +
|
 +
*Horizontal resolution: 5km, temporal resolution: JJA mean
 +
*monthly data will be available at a later stage; please contact us
 +
 
 +
|-valign="top"
 +
|Updated biomass burning emission factors and species
 +
|Tess Carter (MIT)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Updated offline sea salt emissions
 +
|Hongjian Weng (PKU) <br> Jintai Lin (PKU)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|[https://gmd.copernicus.org/articles/13/2569/2020/ Canopy Physics Model]
 +
|Sam Silva (MIT)
 +
|Emissions &<br>Science
 +
|
 +
*DOI: [https://zenodo.org/record/3614062#.XzvrH5NKjOR 10.5281/zenodo.3614062]
 +
*Needs to be updated to a more recent GEOS-Chem version
 +
 
 +
|-valign="top"
 +
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
 +
|Bob Yantosca (Harvard)
 +
|Model performance
 +
|
 +
*Ongoing (will be done as time allows)
 +
 
 +
|-valign="top"
 +
|Retire all BPCH diagnostics
 +
|Bob Yantosca (Harvard)
 +
|Diagnostics
 +
|
 +
*Can be done following the [https://github.com/geoschem/geos-chem/pull/1569 TOMAS update for GCHP]
 +
 
 +
|-valign="top"
 +
|Assess memory leak in GCHP
 +
|Killian Murphy (York)
 +
|Model performance
 +
|
 +
*NOTE: Most memory leaks in GCHP have been fixed by [https://github.com/geoschem/geos-chem/pull/1353 geoschem/geos-chem PR #1353].  Need to assess if any memory leaks still remain.
 +
 
 +
|-valign="top"
 +
|Hybrid MPI-OpenMP in GCHP
 +
|Seb Eastham (MIT)<br>Killian Murphy (York)
 +
|Model performance
 +
|
 +
 
 +
|-valign="top"
 +
|Improve run directory templating and creation with init_rd.sh and shared directories
 +
|Jourdan He (WashU)
 +
|Run directories
 +
|
 +
 
 +
|-valign="top"
 +
|Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc
 +
|GCST?
 +
|Documentation
 +
|
 +
 
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Payer]] 10:45, 5 December 2011 (EST)
+
== Over the horizon (6-12 months) ==
  
−
=== Over the horizon (6-12 months) ===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
−
!width="400px"|Item
+
!width="200px"|Feature
−
!width="200px"|Author(s)
+
!width="200px"|Contributor(s)
−
!width="350px"|Status
+
!width="100px"|Model scope
−
|-
+
!width="420px"|Notes and References
−
|Working with [[GEOS-5.7.2|GEOS-5.7.2]]
+
 
−
|[[GEOS-Chem Support Team]]
+
|-valign="top"
−
|Initial changes already added into [[GEOS-Chem v9-01-03|v9-01-03]]; validation is ongoing
+
|Snow / Icy Bromine
−
|-
+
|Becky Alexander (UW)<br>William Swanson (U. Alaska)<br>Shuting Zhai (UW)
−
|Nested-grid model at 0.25&deg; x 0.3125&deg; resolution
+
|Chemistry
−
|Yuxuan Wang (Tsinghua)
+
−
|Development is ongoing
+
−
|-
+
−
|High-resolution emissions for above nested-grid model
+
−
|Yuxuan Wang (Tsinghua)
+
−
|Development is ongoing
+
−
|-
+
−
|Improved operator splitting
+
−
|Mauricio Santillana (Harvard)
+
−
|Development is ongoing
+
−
|-
+
−
|Update HCN simulation
+
−
|Qian Li (U. Edinburgh)<br>Dylan Jones (U. Toronto)
+
−
|
+
−
|-
+
−
|Improved planeflight diagnostic
+
−
|Mat Evans (Leeds)
+
−
|
+
−
|-
+
−
|Chemistry diagnostics
+
−
|Mat Evans (Leeds)
+
−
|
+
−
|-
+
−
|3-D VOC source for [[Tagged_CO_simulation|tagged CO simulations]]
+
−
|Dylan Jones (U. Toronto)
+
−
|
+
−
|-
+
−
|Move to 2&deg; x 2.5&deg; versions of GISS GCM ModelE and Model3
+
−
|Loretta Mickley (Harvard)
+
−
|For more information, please see the [http://acmg.seas.harvard.edu/geos/word_pdf_docs/steering_cmte/stercomm.telecon.ltmurray.GISS.pdf GISS Model E Memo]<br>by (Lee Murray and Loretta Mickley).
+
−
|-
+
−
|Implement IPCC AR5 scenarios
+
−
|Loretta Mickley (Harvard)
+
 
|
 
|
−
|-
+
 
−
|Improved dust simulation in nested-grid model
+
|-valign="top"
−
|Rokjin Park (Seoul Nat'l Univ.)
+
|Monoterpene oxidation scheme
 +
|Jessica Haskins (MIT)
 +
|Chemistry
 
|
 
|
−
|-
+
 
−
|Improve ocean CO2 flux
+
|-valign="top"
−
|Ray Nassar (Environment Canada)<br>Kevin Bowman (JPL)
+
|Fire related VOCs including furans
−
|
+
|Lu Hu (UMT)<br>Lixu Jin (UMT)
−
|-
+
|Chemistry
−
|CESM/CAM5 interface for chemistry-climate
+
−
|Rokjin Park (Seoul Nat'l Univ.)<br>Joshua Fu (U. Tennessee)
+
−
|  
+
−
|-
+
−
|Standardize the two-film parameterization of air-sea exchange
+
−
|[[Hg and POPs Working Group]]
+
 
|
 
|
−
|-
+
 
−
|[[ChemTelecon20111202|Model engineering - improving KPP diagnostics]]
+
|-valign="top"
−
|Mat Evans (Leeds)<br>Barron Henderson (UNC)<br>Mike Long (Harvard)
+
|Extension of UCX into the mesosphere
 +
|Seb Eastham (MIT)<br>Eric Fleming (NASA)
 +
|Chemistry
 
|
 
|
−
|-
+
 
 +
|-valign="top"
 +
|Methane flux ingestion
 +
|Eloise Marais (UCL)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Dust non-sphericity impacts on surface chem and optical properties
 +
|Inderjeet Singh (WashU)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Size-resolved stratospheric aerosol
 +
|Seb Eastham (MIT)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Extend aerosol settling
 +
|Eloise Marais (UCL)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Stratospheric aerosol APM
 +
|Fangqun Yu (SUNY)
 +
|Aerosols
 +
|
 +
 
 +
|-valign="top"
 +
|Plume-in-grid model
 +
|Hongwei Sun (Harvard)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Updated lightning NOx: Prescribe from ground and geostationary lightning flashes
 +
|Lee Murray (Rochester)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Seb aircraft emissions beyond recent 2019 update
 +
|Seb Eastham (MIT)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|FRP-based fire emsisions for eastern US at 0.2 deg
 +
|Charlie Fite (FSU)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Hg iodine chemistry
 +
|Yiming Fu<br>Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Hg simulation in GCHP
 +
|Ari Feinberg (MIT)<br>Lyssa Freese (MIT)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Update Hg ocean and soil boundary conditions for consistency with new chemistry
 +
|Yanxu Zhang (Nanjing U.)
 +
|Hg simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Dry deposition diagnostics by land cover
 +
|Holly Nowell (FSU)
 +
|Diagnostics
 +
|
 +
 
 +
|-valign="top"
 +
|Dry deposition process diagnostics
 +
|Holly Nowell (FSU)
 +
|Diagnostics
 +
|
 +
 
 +
|-valign="top"
 +
|Isotope simulation for CO and CH4 in GCHP
 +
|Lee Murray (Rochester)
 +
|Carbon simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
 +
|Melissa Sulprizio (Harvard)<br>Tia Scarpelli (U. Edinburgh)<br>Zichong Chen (Harvard)
 +
|Emissions<br>CH4 simulation
 +
|
 +
 
 +
|-valign="top"
 +
|Modularization of aerosols code for interface with GOCART in GEOS
 +
|Christoph Keller (GMAO)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Improve load balancing in GCHP
 +
|Seb Eastham (MIT)
 +
|Model performance
 +
|
 +
 
 +
|-valign="top"
 +
|Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer
 +
|Bo Zhang (NIA)<br>Hongyu Liu (NIA / NASA Langley)
 +
|Transport
 +
|
 +
 
 +
|-valign="top"
 +
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
 +
|Gan Luo (SUNY Albany)<br>Fangqun Yu (SUNY-Albany)
 +
|Transport
 +
|
 +
 
 +
|-valign="top"
 +
|Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons
 +
|Seb Eastham (MIT)<br>Clara Orbe (NASA GISS)<br>Andrew Schuh (CSU)
 +
|Transport
 +
|
 +
 
 
|}
 
|}
  
−
--[[User:Melissa Payer|Melissa Payer]] 11:02, 5 December 2011 (EST)<br>
+
== Longer term (12-24 months)==
−
--[[User:Bmy|Bob Y.]] 12:33, 17 April 2012 (EDT)
+
  
−
=== Longer term (> 12 months)===
+
Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
−
!width="400px"|Item
+
!width="200px"|Feature
−
!width="200px"|Author(s)
+
!width="200px"|Contributor(s)
−
!width="350px"|Status
+
!width="100px"|Model scope
−
|-
+
!width="420px"|Notes and References
−
|[[Grid-independent GEOS-Chem]]
+
 
−
|[[GEOS-Chem Support Team]]
+
|-valign="top"
 +
|Updates to Aromatic chemistry
 +
|Stephen MacFarlane (UOW)<br>Jenny Fisher (UOW)
 +
|Chemistry
 
|
 
|
−
*We plan on delivering the [[Grid-independent GEOS-Chem#Chemistry Component|Chemistry Component]] to NASA/GMAO by June 1, 2012, which marks the end of Year 1 of the project.
 
−
*Development of the [[Grid-independent GEOS-Chem#Emissions Component|Emissions Component]] will be ongoing throughout Year 2 of the project.  Much of this work will be done by Christoph Keller (Harvard).  Our goal is to completely replace GEOS-Chem's legacy emissions routines with a modern emissions package that can be easily interfaced to an external GCM.
 
−
|-
 
−
|Improved atmospheric-ocean-land coupling of Hg simulation
 
−
|[[Hg and POPs Working Group]]
 
−
|
 
−
|-
 
−
|Primary biological aerosol particles (PBAP's)
 
−
|Colette Heald (Colo. State)
 
−
|Only to be implemented if users identified
 
−
|-
 
−
|Unified radiative forcing module for GEOS-Chem
 
−
|[[Aerosols_overview:_projects_and_developments|Aerosols Working Group]]
 
−
|Under discussion/investigation
 
−
|-
 
−
|Effective meteorolgical fields for dust and sea-salt emissions
 
−
|[[GEOS-Chem Support Team]]
 
−
|
 
−
|-
 
−
|Dust simulation expansion; tagged simulation, oxalate, Fe, P
 
−
|Matthew Johnson (NCSU)
 
−
|
 
−
|-
 
−
|Benchmark for aerosol deposition
 
−
|Colette Heald (Colo. State)
 
−
|TBD
 
−
|-
 
−
|Read emission data at native resolution and regrid on the fly
 
−
|[[GEOS-Chem Support Team]]
 
−
|
 
−
|-
 
−
|Link column version of GEOS-Chem with GEOS-GCM for chemistry-climate
 
−
|[[GEOS-Chem Support Team]]
 
−
|NOTE: This project has been folded into the [[Grid-independent GEOS-Chem]] project.
 
−
|-
 
−
|CO2 inhibition effect for isoprene emission
 
−
|Loretta Mickley (Harvard)
 
−
|
 
−
|-
 
−
|Replace CASA CO2 biosphere climatology with year-specific fluxes
 
−
|Ray Nassar (Environment Canada)<br>Dylan Jones (U. Toronto)
 
−
|TBD
 
−
|-
 
−
|}
 
  
−
--[[User:Melissa Payer|Melissa Payer]] 15:17, 6 October 2011 (EDT)<br>
+
|-valign="top"
−
--[[User:Bmy|Bob Y.]] 10:01, 30 March 2012 (EDT)
+
|Nitrate photolysis
 +
|Mat Evans (York)<br>Thomas Sherwen (York)<br>Matthew Rowlinson (York)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|In aerosol chemistry Halogens
 +
|Mat Evans (York)<br>Hansen Cao (CU Boulder)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Benchmark box model of GC Chemistry
 +
|Katie Travis (NASA)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Alkyl nitrates Alk7, PHAN
 +
|Katie Travis (NASA)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Add stratospheric ozone species to full-chemistry simulations
 +
|Lee Murray (Rochester)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Perchlorate chemistry
 +
|Yuk Chun Chan (UWAB)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|Explicit heterogeneous sulfate chemistry
 +
|Katie Travis (NASA)<br>Becky Alexander (UT)
 +
|Chemistry
 +
|
 +
 
 +
|-valign="top"
 +
|HOx and ozone "emissions" from lightning as option in model to play with
 +
|Jingqiu (Alaska)<br>Lee Murray (Rochester)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Sea salt aerosol from sea ice leads
 +
|Hannah Horowitz (U. Illinois)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|Drought-stress algorithm
 +
|Wei Li (U. Houston)
 +
|
 +
|
 +
 
 +
|-valign="top"
 +
|Biomass burning injection height profiles
 +
|Inderjeet Singh (WashU)
 +
|Emissions
 +
|
 +
 
 +
|-valign="top"
 +
|OCIM integration
 +
|Chris Holmes (FSU)<br>Lee Murray (Rochester)
 +
|
 +
|
 +
 
 +
|-valign="top"
 +
|Updating landcover products in GEOS-Chem
 +
|Chris Holmes (FSU)<br>Jeff Geddes (BU)
 +
|Input data
 +
|
 +
 
 +
|-valign="top"
 +
|Dry deposition physical improvement
 +
|Chris Holmes (FSU)
 +
|Dry deposition
 +
|
 +
 
 +
|-valign="top"
 +
|TOMAS WRF-GC in regional Thailand simulation
 +
|Win Trivitayanurak (Chulalongkorn U)
 +
|Aerosols
 +
|
 +
 
 +
|}

Revision as of 18:08, 21 March 2024

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. For history of past releases see the GEOS-Chem Versions wiki page.

Merged and awaiting release

See the links below for items merged and awaiting release.

Mergeable at any time Version in development
GEOS-Chem no-diff-to-benchmark GEOS-Chem 14.4.0

Feature integration in progress

Features listed in this table are actively being integrated into GEOS-Chem by the GEOS-Chem Support Team. In addition, we continuously implement structural updates in the model to maintain and develop coupling with other models including GEOS, CESM, and the model adjoint.

Feature Contributor(s) Model scope Ease of implementation Notes and References
GCHP carbon simulation Melissa Sulprizio (Harvard)
Bob Yantosca (Harvard) 		Carbon Medium
KORUS-AQ emissions for East Asia (as an option) Katie Travis (NASA) Emissions Simple
Global continental chlorine (pCl and HCl) emissions Bingqing Zhang (Georgia Tech)
Pengfei Liu (Georgia Tech) 		Emissions Simple
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple
  • geos-chem issue #1745
  • Currently on hold while an issue with seasonality in the new CEDS data is being investigated
New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa) 		Emissions Medium
Remove differences in GC-Classic when breaking up runs in time Lizzie Lundgren (Harvard) GC-Classic Medium
GCHP advection diagnostics Lizzie Lundgren (Harvard) GCHP diagnostics Simple
Only convert units for species that need it Bob Yantosca (Harvard) Unit conversions Medium

Prioritized and in the queue

Features listed in this table are prioritized for integration into GEOS-Chem in the near future.

Feature Contributor(s) Model scope Ease of implementation Delivery status Notes and References
Online H2 chemistry Maria Paula Pérez-Peña (UNSW)
Jenny Fisher (UOW)
Dylan Millet (UMN) 		Chemistry TBD Delivered
June 2023
ALK4 & R4N2 chemistry Jared Brewer (UMN) Chemistry TBD Not delivered
Updated gravitational settling, dry mass-weighted mean diameters and hygroscopic growth in aerosol dry deposition Yanshun Li (WashU) Aerosols Simple Delivered
Oct 2023
Mass flux regridding fix in MAPL Lizzie Lundgren (Harvard)
Seb Eastham (MIT) 		GCHP input regridding Medium
Parameterization of SNA and OM dry size Haihui Zhu (WashU) Aerosols Medium Delivered
Aug 2023
Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard) 		Diagnostics Medium

Ready to go in

Features listed in this table are ready to go in but have either not been delivered or are not yet prioritized for integration into GEOS-Chem.

Feature Contributor(s) Model scope Delivery status Notes and References
Geologic emission of ethane and propane Matthew Rowlinson and Mat Evans(York) Emissions Delivered
Jan 2023
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam(CUHK)
Amos Tai (CUHK) 		Science Delivered
Feb 2021
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100 Yang Li (Baylor University)
Loretta Mickley (Harvard) 		Emissions Delivered
Jul 2021
  • Data involves many files- need to think about temporal frequency
MEIC (China regional) for 2000-2017 at 0.5x0.625 deg Shixian Zhai (Harvard) Emissions Delivered
  • Need permission from Qiang Zhang (Tsinghua U.) to distribute data
DMS Chemistry Linia Tashmim (UC Riverside)
William Porter (UC Riverside) 		Chemistry Not delivered
Organic acids (RCOOH) Katie Travis (NASA) Chemistry Not delivered
Improve carbon & nitrogen conservation in reactions Kelvin Bates (Harvard) Chemistry Not delivered
Blowing snow sea salt in TOMAS Betty Croft (Dalhousie) Aerosols Not delivered
Australian anthropogenic Hg emissions Stephen MacFarlane (UOW)
Jenny Fisher (UOW)
Hannah Horowitz (U. Illinois)
Viral Shah (Harvard) 		Hg simulation Not delivered
WRF-GC Hg simulation Xiaotian Xu (Nanjing U.)
Yanxu Zhang (Nanjing U.) 		Hg simulation
WRF-GC 		Not delivered
Updated HgII gas-partical partitioning Kaiyun Liu (Tsinghua U.)
Qingru Wu (Tsinghua U.)
Shuxiao Wang (Tsinghua U.) 		Hg simulation Not delivered
  • Should be option, not default
Dry deposition to F90 (readability) Chris Holmes (FSU) Dry deposition Not delivered

Almost there (< 6 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team within the next 6 months.

Feature Contributor(s) Model scope Notes and References
Replace ISORROPIA with HTEPv1.0 Seb Eastham (MIT)
Lizzie Lundgren (Harvard) 		Aerosol thermodynamics
  • Will be git submodule
PPN+hv, PPN+OH Robert Ryan (UCL) Chemistry
MBO Michael Vermeuel (UMN) Chemistry
Initial conditions for CH4 correcting background and stratospheric biases Todd Mooring (Harvard) Methane simulation
Migrating simple SOA formation from carbon_mod.F90 into the KPP "full-chemistry" mechanism Bob Yantosca (Harvard) Aerosols
Structural
  • Ongoing
Re-binning of off-line sea salt and dust for use in TOMAS Betty Croft (Dalhousie) Aerosols
Adaption of TOMAS' in-cloud aqueous sulfate production for KPP versus sulfate_mod.F90 Betty Croft (Dalhousie) Aerosols
ML algorithms for bulk aerosols Arshad Nair (SUNY Albany)
Fangqun Yu (SUNY Albany) 		Aerosols
PM2.5 and PM10 calculations: aerodynamic vs geometric diameters Shixian Zhai (Harvard) Aerosols
Updates to Hodzic SOA scheme Jared Brewer (Harvard) Aerosols
Automated reduction in isoprene scheme Dan Westervelt (Lamont-Doherty) Aerosols
Brown carbon chemsitry Jingqiu Mao (U. Alaska)
Xuan Wang (CUHK) 		Aerosols
GEOS resolution and subgrid convection - Part 2 RAS parameter tuning Tailong He (Toronto)
Dylan Jones (Toronto)
Andrea Molod (NASA GMAO) 		Convection
High-res top-down TROPOMI-derived seasonal mean NOx emissions for China Jintai Lin (PKU) Emissions
  • Horizontal resolution: 5km, temporal resolution: JJA mean
  • monthly data will be available at a later stage; please contact us
Updated biomass burning emission factors and species Tess Carter (MIT) Emissions
Updated offline sea salt emissions Hongjian Weng (PKU)
Jintai Lin (PKU) 		Emissions
Canopy Physics Model Sam Silva (MIT) Emissions &
Science
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone Bob Yantosca (Harvard) Model performance
  • Ongoing (will be done as time allows)
Retire all BPCH diagnostics Bob Yantosca (Harvard) Diagnostics
Assess memory leak in GCHP Killian Murphy (York) Model performance
Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT)
Killian Murphy (York) 		Model performance
Improve run directory templating and creation with init_rd.sh and shared directories Jourdan He (WashU) Run directories
Table of CTM and online GCM properties: GCHP, GCC, GEOS-CTM, GC-Nested, online GEOS, GEOS-replay, etc GCST? Documentation

Over the horizon (6-12 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 6-12 months timeframe.

Feature Contributor(s) Model scope Notes and References
Snow / Icy Bromine Becky Alexander (UW)
William Swanson (U. Alaska)
Shuting Zhai (UW) 		Chemistry
Monoterpene oxidation scheme Jessica Haskins (MIT) Chemistry
Fire related VOCs including furans Lu Hu (UMT)
Lixu Jin (UMT) 		Chemistry
Extension of UCX into the mesosphere Seb Eastham (MIT)
Eric Fleming (NASA) 		Chemistry
Methane flux ingestion Eloise Marais (UCL) Chemistry
Dust non-sphericity impacts on surface chem and optical properties Inderjeet Singh (WashU) Aerosols
Size-resolved stratospheric aerosol Seb Eastham (MIT) Aerosols
Extend aerosol settling Eloise Marais (UCL) Aerosols
Stratospheric aerosol APM Fangqun Yu (SUNY) Aerosols
Plume-in-grid model Hongwei Sun (Harvard) Chemistry
Updated lightning NOx: Prescribe from ground and geostationary lightning flashes Lee Murray (Rochester) Emissions
Seb aircraft emissions beyond recent 2019 update Seb Eastham (MIT) Emissions
FRP-based fire emsisions for eastern US at 0.2 deg Charlie Fite (FSU) Emissions
Hg iodine chemistry Yiming Fu
Yanxu Zhang (Nanjing U.) 		Hg simulation
Hg simulation in GCHP Ari Feinberg (MIT)
Lyssa Freese (MIT) 		Hg simulation
Update Hg ocean and soil boundary conditions for consistency with new chemistry Yanxu Zhang (Nanjing U.) Hg simulation
Dry deposition diagnostics by land cover Holly Nowell (FSU) Diagnostics
Dry deposition process diagnostics Holly Nowell (FSU) Diagnostics
Isotope simulation for CO and CH4 in GCHP Lee Murray (Rochester) Carbon simulation
Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3) Melissa Sulprizio (Harvard)
Tia Scarpelli (U. Edinburgh)
Zichong Chen (Harvard) 		Emissions
CH4 simulation
Modularization of aerosols code for interface with GOCART in GEOS Christoph Keller (GMAO) Structural
Improve load balancing in GCHP Seb Eastham (MIT) Model performance
Testing the use of monthly mean MERRA-2 CWC with Pb-210 aerosol tracer Bo Zhang (NIA)
Hongyu Liu (NIA / NASA Langley) 		Transport
Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer Gan Luo (SUNY Albany)
Fangqun Yu (SUNY-Albany) 		Transport
Evaluate vertical mixing in GEOS-Chem with model-model and model-observation comparisons Seb Eastham (MIT)
Clara Orbe (NASA GISS)
Andrew Schuh (CSU) 		Transport

Longer term (12-24 months)

Features listed in this table are in development and will likely be delivered to the GEOS-Chem Support Team in the 12-24 months timeframe.

Feature Contributor(s) Model scope Notes and References
Updates to Aromatic chemistry Stephen MacFarlane (UOW)
Jenny Fisher (UOW) 		Chemistry
Nitrate photolysis Mat Evans (York)
Thomas Sherwen (York)
Matthew Rowlinson (York) 		Chemistry
In aerosol chemistry Halogens Mat Evans (York)
Hansen Cao (CU Boulder) 		Chemistry
Benchmark box model of GC Chemistry Katie Travis (NASA) Chemistry
Alkyl nitrates Alk7, PHAN Katie Travis (NASA) Chemistry
Add stratospheric ozone species to full-chemistry simulations Lee Murray (Rochester) Chemistry
Perchlorate chemistry Yuk Chun Chan (UWAB) Chemistry
Explicit heterogeneous sulfate chemistry Katie Travis (NASA)
Becky Alexander (UT) 		Chemistry
HOx and ozone "emissions" from lightning as option in model to play with Jingqiu (Alaska)
Lee Murray (Rochester) 		Emissions
Sea salt aerosol from sea ice leads Hannah Horowitz (U. Illinois) Emissions
Drought-stress algorithm Wei Li (U. Houston)
Biomass burning injection height profiles Inderjeet Singh (WashU) Emissions
OCIM integration Chris Holmes (FSU)
Lee Murray (Rochester)
Updating landcover products in GEOS-Chem Chris Holmes (FSU)
Jeff Geddes (BU) 		Input data
Dry deposition physical improvement Chris Holmes (FSU) Dry deposition
TOMAS WRF-GC in regional Thailand simulation Win Trivitayanurak (Chulalongkorn U) Aerosols
Retrieved from "https://wiki.seas.harvard.edu/geos-chem/index.php?title=GEOS-Chem_model_development_priorities&oldid=53247"