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

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(Almost there (< 6 months))
(Feature integration in progress)
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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/2017/index.html International GEOS-Chem Meeting (IGC8)] in May 2017 and was updated in May 2018 following the release of v11-02 which included a number of these priorities. This list will be continuously updated 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]].
  
We also invite you to view our [https://trello.com/board/geos-chem-support-team/4fe36668fc79a1d3540ba80b GEOS-Chem Support Team project management board on Trello.com], which shows the current GCST workflow.
+
== Merged and awaiting release ==
  
== List of priorities from IGC8 ==
+
See the links below for items merged and awaiting release.
  
----
+
{| border=1 cellspacing=0 cellpadding=5
----
+
|-bgcolor="#CCCCCC"
<big><strong>GEOS-Chem v11-02-final</strong> '''will also carry the designation''' <strong>GEOS-Chem 12.0.0</strong>'''.'''  We are migrating to a purely numeric versioning system in order to adhere more closely to software development best practices. For a complete description of the new versioning system, please see [[GEOS-Chem version numbering system|our ''GEOS-Chem version numbering system'' wiki page]].</big>
+
!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 14.5.0]]'''
  
The items listed below are in different stages of readiness and will be included in future versions of the model.
+
|}
  
=== Ready to go in ===
+
== Feature integration in progress ==
  
The following updates are now being considered for inclusion into GEOS-Chem.
+
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"|Feature
+
!width="200px"|Feature
!width="250px"|Submitted by
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="300px"|Status
+
!width="100px"|Ease of implementation
 +
!width="300px"|Notes and References
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Transport updates
+
|[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"
 
|-valign="top"
|[[Transport_Working_Group#Common_set_of_tracers_in_GEOS-Chem_and_GEOS|Common set of tracers in GEOS-Chem and GEOS]]
+
|Horizontal flux regridding fix in MAPL
|Transport WG<br>[[GCST]]
+
|Tom Clune (GMAO)
|Benchmarking
+
|GCHP
 +
|Medium
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.2.0|GEOS-Chem 12.2.0]]
+
*[https://github.com/geoschem/MAPL/pull/36 MAPL PR #36]
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+
|Cloud-J 7.7.2 for greater flexibility in external models
 +
|Lizzie Lundgren (Harvard)
 +
|Photolysis
 +
|Medium
 +
|
 +
*[https://github.com/geoschem/Cloud-J/pull/17 Cloud-J PR #17]
 +
*[https://github.com/geoschem/geos-chem/pull/2342 GEOS-Chem PR #2342]
 +
* More Cloud-J PRs in progress
  
 
|-valign="top"
 
|-valign="top"
|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
+
|GCHP run directory improvements for mass flux, stretched grid, and GEOS-IT runs
|Sebastian Eastham (MIT)
+
|Lizzie Lundgren (Harvard)
|Science
+
|GCHP
 +
|Medium
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.3.0|GEOS-Chem 12.3.0]]
+
*[https://github.com/geoschem/geos-chem/pull/2326 GEOS-Chem PR #2326]
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Emissions updates
+
|Fixes for GEOS-Chem 14.4 in CESM
 +
|Haipeng Lin (Harvard)<br>Lizzie Lundgren (Harvard)
 +
|CESM
 +
|Medium
 +
|
 +
*[https://github.com/geoschem/geos-chem/pull/2348 GEOS-Chem PR #2348]
 +
*[https://github.com/geoschem/geos-chem/pull/2349 GEOS-Chem PR #2349]
 +
* More PRs in progress
 +
 
 +
|}
 +
 
 +
== Prioritized and in the queue ==
 +
 
 +
Features listed in this table are prioritized for integration into GEOS-Chem in the near future.
 +
 
 +
{| 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"
 
|-valign="top"
|[[Volcanic_SO2_emissions_from_Aerocom#OMI-based_volcanic_emissions|OMI-based volcanic emissions 2005-2012]]
+
|ALK4 & R4N2 chemistry
|Cui Ge (U. Iowa)<br>Jun Wang (U. Iowa)
+
|Jared Brewer (UMN)
|Science
+
|Chemistry
 +
|TBD
 +
|Delivered
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.3.0|GEOS-Chem 12.3.0]]
+
*[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., 2023.]
  
 
|-valign="top"
 
|-valign="top"
|[[Mineral_dust_aerosols#Anthropogenic_PM2.5_dust_source_in_GEOS-Chem|Anthropogenic PM2.5 dust source]]
+
|New version of CEDS at 0.1 deg
|Sajeev Philip (Dalhousie)
+
|Dandan Zhang (WashU)
|Science
+
|Emissions
 +
|Simple
 +
|Delivered June 2024
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.1.0|GEOS-Chem 12.1.0]]
+
*[https://github.com/geoschem/geos-chem/issues/1745 geos-chem issue #1745]
  
 
|-valign="top"
 
|-valign="top"
|[[MEGAN_v2.1_plus_Guenther_2012_biogenic_emissions#Discussion_of_LAI_Data_Sources|Update MODIS LAI fields for 2005-2016 using Yuan et al. (2011) ]]
+
|Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4
|Jenny Fisher (Wollongong) <br>Barron Henderson (US EPA)
+
|Lizzie Lundgren (Harvard)
|Science
+
|GC-Classic
 +
|Medium
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.3.0|GEOS-Chem 12.3.0]]
+
|
 +
*[https://github.com/geoschem/HEMCO/issues/18 HEMCO issue #18]
 +
 
 +
|}
 +
 
 +
== 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 Refereneces
  
|-
 
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
 
  
 
|-valign="top"
 
|-valign="top"
|Sea salt aerosol alkalinity
+
|Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol
|Qianjie Chen (UW)<br>Becky Alexander (UW)<br>Xuan Wang (Harvard)
+
|Camilo Serrano and Andreas Zuend (McGill)
|Science
+
|Aerosols
 +
|Not delivered
 
|
 
|
*UW version delivered to GCST (Nov 2017)
 
  
 
|-valign="top"
 
|-valign="top"
|VBS SOA option
+
|Extend aerosol settling
|Rokjin Park (SNU)
+
|Eloise Marais (UCL)
|Science
+
|Aerosols
 +
|Not delivered
 
|
 
|
*Code has been implemented in the ancient v9-01-02 version. 
 
*Bringing this up to the current SOA model (simple SOA, complex SOA) will likely involve significant effort.
 
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
+
|Comment back in Ca, Mg, and K cations in aerosol thermo (HETP)
 +
|Becky Alexander (UW)
 +
|Aerosols
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
|AMAP/UNEP 2035 for Hg simulation
+
|Seasalt aerosol from sea ice leads (2002-2011)
|Helene Angot (MIT)
+
|Hannah (UIUC)
|Science
+
|Aerosols
 +
|Not delivered
 
|
 
|
*Data is available, but has not been transferred to GCST yet
 
  
 
|-valign="top"
 
|-valign="top"
|Oxidant fields from v10 for 2006-2012
+
|P/L species should not contribute to the error norm
*3D chemical source for CO2, CO
+
|Obin Sturm (PSC)
*OH for tagged CO & CH4
+
|Chemistry
|Dylan Jones (UofT)
+
|Not delivered
|Science
+
 
|
 
|
*Will make data files available on ftp site
 
  
 
|-valign="top"
 
|-valign="top"
|Africa nested-grid for GEOS-FP and MERRA-2
+
|Additional 6 peroxynitrates (many PANs like species); improve ALK4 & add ALK6
|Eloise Marais (U. Birmingham)
+
|Katherine Travis (NASA LARC)
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
*Delivered to GCST (Dec 2017)
 
*Could be implemented with Jiawei Zhuang's FlexGrid
 
  
 
|-valign="top"
 
|-valign="top"
|West Africa nested-grid for GEOS-FP
+
|Monoterpene oxdation more species & oxdiation products
|Mat Evans (York)<br>Eleanor Morris (York)
+
|Kevin Bates (CU Boulder)
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
*Could be implemented with Jiawei Zhuang's FlexGrid
 
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
+
|PPN photolysis
|Becky Alexander (UW)
+
|Eloise Marais (University College London)
|Science
+
|Chemistry
 +
|Not delivered
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Arsenic simulation
+
|global orgainc N dep from various emissions; nitrate aromatics updates
|Shiliang Wu (MT)
+
|Tzung-May Fu (SUSTech)
|Science
+
|Chemistry +<br>Deposition
 +
|Not delivered
 
|
 
|
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|GCHP updates
+
|adaptive chemistry (domain-specific) in WRF-GC
 +
|Tzung-May Fu (SUSTech)
 +
|Chemistry
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
|None
+
|Alk4 from biogenic vs anthro
 +
|Jared Brewer (UMN)
 +
|Chemistry
 +
|Not delivered
 
|
 
|
 +
 +
|-valign="top"
 +
|Dry deposition to F90 (readability)
 +
|Chris Holmes (FSU)
 +
|Dry Deposition
 +
|Not delivered
 
|
 
|
 +
 +
|-valign="top"
 +
|Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange
 +
|Joey Lam, Amos Tai (CUHK)
 +
|Dry deposition
 +
|Not delivered
 
|
 
|
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Structural updates
+
|FRP-based fire emissions for eastern US at 0.2
 +
|Chris Holmes (FSU)
 +
|Emissions
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
|Updated flux diagnostics
+
|China agriculture NH3 emissions
|Chris Holmes (Florida State)<br>[[GCST]]
+
|Amos Tai (CUHK)
|Structural/<br>Benchmarking
+
|Emissions
 +
|Not delivered
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.1.0|GEOS-Chem 12.1.0]]
 
  
 
|-valign="top"
 
|-valign="top"
|Benchmark of stratospheric simulation
+
|T-dependent anthropogenic VOCs
|Dylan Jones (U. Toronto)
+
|May Fu (SUSTech)
|Benchmarking
+
|Emissions
 +
|Not delivered
 
|
 
|
*1-yr benchmarks for GEOS-Chem v11-01d and later include comparisons with OSIRIS O3
 
*Waiting on OSIRIS NO2 data
 
*Waiting on comparisons with ACE-FTS data
 
  
 
|-valign="top"
 
|-valign="top"
|Add total column O3 to benchmarks
+
|Rasterized shapefiles high-resolution for oil and gas infrastructure in North America
|Chris Holmes (FSU)<br>[[GCST]]
+
|Lee Murray (Rochester)
|Benchmarking
+
|Emissions
 +
|Not delivered
 
|
 
|
*Deferred until GEOS-Chem 12
 
*Also note: GCST plans on migrating benchmark plotting code from IDL to Python in v11-03
 
  
 
|-valign="top"
 
|-valign="top"
|ObsPack diagnostic as netCDF replacement for planeflight_mod.F
+
|New soil NOx parameterization
|Andy Jacobson (NOAA/ESRL)
+
|Yi Wang (U. Iowa), Jun Wang (U. Iowa)
|Structural
+
|Emissions
 +
|Not delivered
 
|
 
|
*Delivered to GCST (May 2017)
 
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem_v11-02#Discrepancies_in_single-stage_simulations_vs_multi-stage_simulations|Updates to eliminate differences between single and multi-segmented GEOS-Chem runs]]
+
|New source functions for transport tracers beryllium-7 and beryllium-10
|[[GCST]]<br>Christoph Keller
+
|Minjie Zheng (ETH)
|Bug fix<br>Structural
+
|Emissions
 +
|Not delivered
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.1.0|GEOS-Chem 12.1.0]]
 
  
 
|-valign="top"
 
|-valign="top"
|Further structural updates to facilitate interfacing GEOS-Chem with external models (e.g. WRF, CAM, CESM)
+
|LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100
|[[GCST]]
+
|Yang Li (Baylor University), Loretta Mickley (Harvard)
|Structural
+
|Emissions
 +
|Not delivered
 
|
 
|
*Ongoing
 
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
+
|Australian emissions
 +
|Stephen MacFarlane/Jenny Fisher (UWollongong)
 +
|Emissions
 +
|Not delivered
 +
|
  
 
|-valign="top"
 
|-valign="top"
|[[FlexGrid|FlexGrid: Use HEMCO to read met fields and enable nested simulations over any custom domains]]
+
|Geogenic emissions (volcanic, rock weathering)
|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
+
|Eric Roy (MIT)
|Structural
+
|Emissions
 +
|Not delivered
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.1.0|GEOS-Chem 12.1.0]]
 
  
 
|-valign="top"
 
|-valign="top"
|[[ISORROPIA_II#Investigating_persistent_noise_observed_in_ISORROPIA_output|Update ISORROPIA from v2.0 to v2.2, in order to remove persistent noise in output]]
+
|Biomass burning - FINN2.5 & GFED4
|Seb Eastham (Harvard)
+
|Eric Roy (MIT)
|Science
+
|Emissions
 +
|Not delivered
 
|
 
|
*Currently slated for [[GEOS-Chem 12#12.3.0|GEOS-Chem 12.3.0]]
 
  
 
|-valign="top"
 
|-valign="top"
|Archival of roughness length for temperature z0T
+
|BCC-GC online
|[[GCST]]
+
|Lin Zhang (PKU)
|Met processing
+
|External Model
 +
|Not delivered
 
|
 
|
*Work has not yet begun
+
 
 +
|-valign="top"
 +
|GC-YIBS with online fire emissions
 +
|Xu Yue; Hong Liao; Xu Yue (NUIST)
 +
|External Model
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|GISS-GC offline (GCAP)
 +
|Lee Murray (Rochester)
 +
|GCAP
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|Archived TCR-2 OH fields for carbon simulations
 +
|Kazu Miyazaki (JPL)
 +
|Input data
 +
|Not delivered
 +
|
 +
 
 +
|-valign="top"
 +
|GOOPy (General Observation Operator in Python): for processing satellite and model output to produce column fields using averaging kernels
 +
|Hannah Nesser (JPL) , Elise Penn (Harvard)
 +
|Tools
 +
|Not delivered
 +
|
 +
* Could be added into GCPy as a Git submodule
 +
 
 
|}
 
|}
  
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 16:10, 20 June 2018 (UTC)
+
== Almost there (< 6 months) ==
  
=== 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
+
{|border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
!width="400px"|Item
+
!width="200px"|Feature
!width="250px"|Author(s)
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="300px"|Status
+
!width="420px"|Notes and References
  
|-
 
!colspan="4" bgcolor="#CCFFFF"|Transport updates
 
  
 
|-valign="top"
 
|-valign="top"
|[https://www.geosci-model-dev-discuss.net/gmd-2017-125/ GEOS resolution & subgrid convection]
+
|Capture all trop and PBL height changes in budget diagnostics
|Karen Yu (Harvard)
+
|Chris Holmes (FSU)<br>Lizzie Lundgren (Harvard)
|Science
+
|Diagnostics
 
|
 
|
*To be installed by Bob Yantosca (Harvard), tested by Tailong He (Toronto)
+
*[https://github.com/geoschem/geos-chem/pull/2103 geos-chem PR 2103]
*Work to begin after v11-02 release
+
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
+
|Dust non-sphericity impacts on optical properties
 +
|Inderjeet Singh (WashU)
 +
|Aerosols
 +
|
  
 
|-valign="top"
 
|-valign="top"
|N2O5 hydrolysis updates
+
|Fixes to stratospheric aerosol settling
|Viral Shah (UW)
+
|Connor Barker, Eloise Marais (UCL)
|Science
+
|Aerosols
 
|
 
|
*Defer until paper is submitted (Summer 2018)
 
*Code from v10 (SMVGEAR) needs to be translated to v11 (FlexChem); this may take some effort
 
  
 
|-valign="top"
 
|-valign="top"
|H2 chemistry in UCX
+
|DMS chemistry in v14
|Chris Holmes (FSU)
+
|Linia Tashmim and Will Porter (UC Riverside)
|Science
+
|Chemistry
 
|
 
|
*Defer until paper is submitted
 
*Estimate Fall 2018 or sooner
 
  
 
|-valign="top"
 
|-valign="top"
|Updated chlorine chemistry
+
|KPP standalone + 3D Interface
|Xuan Wang (Harvard)
+
|Obin Sturm (PSC)
|Science
+
|Chemistry
 
|
 
|
*Defer until the paper is submitted
 
  
 
|-valign="top"
 
|-valign="top"
|[[Chemistry_Issues#Correcting_ozone_from_the_height_of_the_lowest_model_level_to_the_surface|ND49 timeseries diagnostic for correcting ozone from the height of the lowest model level to 10m]]
+
|Load balancing in chemistry solver (GCHP)
|Katie Travis (MIT)
+
|Zhouran (Jordan) Sun (WashU)
|Structural
+
|Chemistry +<br>Performance
 
|
 
|
*Defer until the paper is submitted
 
  
 
|-valign="top"
 
|-valign="top"
|OH + NO2 rate update
+
|UCX chemistry in mesosphere (GCHP/GCClassic)
|Barron Henderson (EPA)
+
|Helena McDonald (MIT)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[Chemistry_Issues#Script_for_evaluating_carbon_balance|Script for checking N, C, etc. balance in chemistry mechanism]]
+
|Updated aromatic oxidation
|Barron Henderson (EPA)
+
|Stephen MacFarlane/Jenny Fisher (University of Wollongong)
|Software
+
|Chemistry
|Barron Henderson wrote:
+
|
*The script for checking the carbon balance exists and works. Ideally, we would move some of the structures into the KPP files to codify them instead of storing them in the script itself. This would be less than 6 months. [https://www.evernote.com/shard/s315/sh/82219b0a-0031-4f3c-a9ca-401964d3b4c5/7af8ad1c743543fa20bf91201ecab2f0 Click HERE for script]
+
  
 
|-valign="top"
 
|-valign="top"
|Aromatics and dicarbonyl chemistry
+
|MCO3 uptake by cloud forming MP; leading to lower PAN
|William Porter (MIT)<br>Tzung-May Fu (PKU)
+
|Laura Yang (Harvard)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Document chemical mechanism in KPP file
+
|Implement isotope simulation for CH4 in the carbon simulation
|Mat Evans (York)
+
|Lee Murray (Rochester)
|Structural
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Diurnal variability for NH3
+
|Active mesospheric chemistry
|Henze group
+
|Helena McDonald (MIT), Seb Eastham (IC)
|Science
+
|Chemistry
|Daven Henze wrote:
+
|
*The FORTRAN code for implementing NH3 emissions diurnal variability is fairly straightforward.  However, it involves calculation of some quantities that depend upon met fields in the future, and we’re unsure of how to accomplish this in a robust and elegant manner. 
+
 
*In particular, we need to know the aerodynamic resistance and surface temperature at every emission time step over the course of a time period X, where X is the time resolution of the NH3 livestock emissions inventory being used.  This is typically monthly, but I could foresee future inventories having higher resolution, so maybe we want to consider this more generically. 
+
*One approach would be to pre-process this quantity at high resolution for all years, as is currently being done e.g. for dust emissions.  Another would be to add code to read in this information from met files online, but this would add some i/o to the model.
+
+
 
|-valign="top"
 
|-valign="top"
|Uptake of HNO3 onto coarse-mode sea salt
+
|Documentation for adding additional aerosol species
|Prasad Kasibhatla (Duke)
+
|Connor Barker (UCL)
|Science
+
|Documentation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Photolysis of NITs
+
|Column diagnostics
|Prasad Kasibhatla (Duke)
+
|Lizzie Lundgren (Harvard), Viral Shah (GMAO)
|Science
+
|Diagnostics
 
|
 
|
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Emissions updates
+
|TOMAS rate diagnostics -- improve performance
 +
|Betty Croft (WashU/Dal)
 +
|Diagnostics +<br>Performance
 +
|
  
 
|-valign="top"
 
|-valign="top"
|Grid-independent lightning NOx emissions (3-hourly)
+
|Fix obspack - not working in 14.4.0
|Lee Murray (Rochester)
+
|Bob Yantosca (Harvard)
|Science
+
|Diagnostics
 
|
 
|
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
|Grid-independent dust emissions (hourly)
+
|Archive gamma values from heterogeneous chemistry
|David Ridley (MIT)
+
|Bob Yantosca (Harvard)
|Science
+
|Diagnostics
 
|
 
|
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
|Grid-independent biogenic emissions (hourly)
+
|RRTMG Documentation
|Jintai Lin (PKU)
+
|GCST
|Science
+
|Documentation
 
|
 
|
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
|Grid-independent sea salt emissions (hourly)
+
|Canopy Physics Model
|Jintai Lin (PKU)
+
|Sam Silva (MIT)
|Science
+
|Dry Deposition
 
|
 
|
*Data has not yet been transferred to GCST
 
  
 
|-valign="top"
 
|-valign="top"
|EPA-derived BC/OA emissions over US (1990-2012)
+
|Dry deposition diagnostics by land cover
|David Ridley (MIT)<br>Chi Li (Dalhousie)
+
|Holly Nowell, Chris Holmes (FSU)
|Science
+
|Dry Deposition
 
|
 
|
*Emissions are available but need to be formatted properly.
 
*Could be ready by Fall-Winter 2018, depending on D. Ridley's availability
 
  
 
|-valign="top"
 
|-valign="top"
|[[FINNv1_biomass_burning_emissions|FINN biomass burning emissions for 2014-2016]]
+
|Dry deposition process diagnostics
|Barron Henderson (US EPA)
+
|Holly Nowell, Chris Holmes (FSU)
|Science
+
|Dry Deposition
 
|
 
|
*Pending receipt of corrected data files
 
  
 
|-valign="top"
 
|-valign="top"
|EPA NEI2011 Version EK
+
|Biomass burning for TOMAS
|Zitely Tzompa-Sosa (CSU)<br>Emily Fischer (CSU)
+
|Nicole June (CSU)
|Science
+
|Emissions +<br>Microphysics
 
|
 
|
*Estimate Late 2018 or sooner
 
  
 
|-valign="top"
 
|-valign="top"
|GFAS biomass burning emissions
+
|Historic biomass burning ()
|Mat Evans (York)
+
|Pengfei (Gtech)
|Science
+
|Emissions
|Mat Evans wrote:
+
|
*For the sake of the documentation and the wiki I think we should replicate the standard benchmark year on our system, and then switch on the GFAS emissions instead of the GFED and then have the GFAS emissions distributed by hieight.  We can do that and then prepare some plots for the documentation.  Estimate summer 2018.
+
  
 
|-valign="top"
 
|-valign="top"
|[[MASAGE_NH3_inventory|MASAGE inventory in HEMCO as default]]
+
|Rice methane
|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
+
|Zichong Cheng (Harvard)
|Science
+
|Emissions
 
|
 
|
*MASAGE data is already available.
 
*GCST would need assistance from the user community to prepare HEMCO configuration files such that we do not double-count agricultural NH3 from MASAGE and other inventories.  This has been the main delay.
 
*F. Paulot has left the GC community.
 
  
 
|-valign="top"
 
|-valign="top"
|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
+
|Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.)
|Amos Tai (CUHK)
+
|Katie Travis / Kelvin Bates
|Science
+
|Emissions
 
|
 
|
*Waiting on data
 
  
 
|-valign="top"
 
|-valign="top"
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
+
|Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3)
|Fabien Paulot (NOAA/GFDL)
+
|Melissa Sulprizio (Harvard), Tia Scarpelli (Carbon MAPPER)
|Science
+
|Emissions
 
|
 
|
*Data files delivered to GCST (Jan 2016)
 
*Needs to be implemented via HEMCO, which is the primary delay
 
  
 
|-valign="top"
 
|-valign="top"
|Injection height for fire emissions
+
|New prior biospheric fluxes from CMS-FLUX and GMAO
|Juliet Zhu (CSU)<br>Emily Fischer (CSU)
+
|Kevin Bowman (JPL), Lesley Ott (GMAO)
|Science
+
|Emissions
 
|
 
|
*Code was available in pre v9-02 (HEMCO)
 
*Code may have been ported to v11-02a but this option was not activated
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|Surface fluxes and land usage updates
 
  
 
|-valign="top"
 
|-valign="top"
|Land cover module: Harmonized biosphere-atmosphere exchange and implementing CLM or manual land cover change experiments
+
|Snowpack Br2 emission
|Jeff Geddes (BU)
+
|Chris Holmes (FSU)
|Science
+
|Emissions
 
|
 
|
*Has been added into v9-02 (pre-HEMCO)
 
*Bringing this up to v11 will probably need significant effort
 
*BU group/GCST will meet summer 2018 to discuss implementation
 
  
 
|-valign="top"
 
|-valign="top"
|Carbon bottom up fluxes: anthro, ocean, land
+
|EDGAR v8.1_toxHg emissions for 1970-2022
|Kevin Bowman (JPL)
+
|Eric Roy (MIT)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Online O3-LAI coupling in GEOS-Chem
+
|Improve pressure handling in GCHP advection
|Amos Tai (CUHK)
+
|Yuanjian Zhang (WashU), Seb Eastham (ICL)
|Science
+
|GCHP
 
|
 
|
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Wet deposition updates
+
|Add error trap for duplicate scale factors in HEMCO
 +
|Bob Yantosca (Harvard)
 +
|HEMCO
 +
|
  
 
|-valign="top"
 
|-valign="top"
|Wet deposition parameterizations: pH dependency, Henry's law coefficients, etc.
+
|Fix pressure handling in HEMCO standalone
|Sarah Safieddine (MIT)<br>GCST
+
|Melissa Sulprizio (Harvard)
|Science
+
|HEMCO
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Wet scavenging in mixed-phase clouds
+
|Integration testing: Add stretched grid
|Bo Zhang (NIA/NASA Langley)
+
|Lizzie Lundgren (Harvard)
|Science
+
|Quality Assurance
 
|
 
|
*Defer until paper is published
 
*Estimate Fall 2018
 
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
+
|Integration testing: Add GCAP2
 +
|GCST
 +
|Quality Assurance
 +
|
  
 
|-valign="top"
 
|-valign="top"
|Radon emission update
+
|Integration testing: Add GCHP mass flux run
|Bo Zhang (NIA/NASA Langley)
+
|Lizzie Lundgren (Harvard)
|Science
+
|Quality Assurance
 
|
 
|
*Defer until paper is published
 
*Estimate Fall 2018
 
  
 
|-valign="top"
 
|-valign="top"
|[[POPs simulation#PCB simulation|PCB simulation]]
+
|Integration testing: Add run with all diagnostics turned on
|Colin Thackray (Harvard)<br>Carey Friedman (formerly MIT)<br>Helen Amos (formerly Harvard)
+
|GCST
|Science
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|New EDGAR sectoral inventory for Hg (1970-2012)
+
|Integration testing: Reinstate TOMAS40
|Amanda Giang (MIT)
+
|Betty Croft (Dalhousie/WashU)
|Science
+
|Quality Assurance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive GISS met fields from RCP scenarios for community
+
|Strat-adjusted RF in GCC and GCHP
|Lee Murray (Rochester)
+
|Connor Barker, Eloise Marais (UCL)
|Science
+
|Radiation
 
|
 
|
 
|-
 
!colspan="4" bgcolor="#CCFFFF"|GCHP updates
 
  
 
|-valign="top"
 
|-valign="top"
|New version of MAPL
+
|Continue cleanup of C-preprocessor switches
|GMAO<br>Lizzie Lundgren (GCST)
+
|Lizzie Lundgren (Harvard)
 
|Structural
 
|Structural
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Flux ingestion
+
|updates to Luo deposition scheme
|Sebastian Eastham (MIT)
+
|Gan Luo
|Science
+
|Wet Deposition
 
|
 
|
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Structural updates
+
|Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer
 +
|Gan Luo (Albany), Fangqun Yu (Albany)
 +
|Wet Deposition
 +
|
 +
 
 +
|}
 +
 
 +
== 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
 +
|- bgcolor="#cccccc"
 +
!width="200px"|Feature
 +
!width="200px"|Contributor(s)
 +
!width="100px"|Model scope
 +
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|Clean up SOA diagnostics
+
|ML algorithms for bulk aerosol
|GCST
+
|Arshad Nair and Fangqun Yu (SUNY Albany)
|Structural
+
|Aerosols
 
|
 
|
*GCST has implemented many existing SOA diagnostics in netCDF
+
 
*GCST would need help from the community to streamline these diagnostics
+
  
 
|-valign="top"
 
|-valign="top"
|Calculation consistency throughout code: surface area, HGF (via species database)
+
|Heterogeneous sulfate chemistry
|GCST
+
|Katie Travis
|Structural
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Harmonizing Henry's Law coefficients across wet and dry deposition
+
|H2 as an active species
|[[GCST]]
+
|Seb Eastham (IC)
|Science
+
|Chemistry
 
|
 
|
*Work not started yet. Will need input from the community.
 
  
|-
+
|-valign="top"
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
+
|HCN, acetonitrile as fire tracers
 +
|Kevin Bates (CU Boulder)
 +
|Chemistry
 +
|
  
 
|-valign="top"
 
|-valign="top"
|CESM-GC offline coupling in standard model + benchmark
+
|Implement ethane in carbon simulation
|Rokjin Park (SNU)<br>Daniel Rothenberg (MIT)
+
|Yuzhong Zhang (Westlake)
|Science
+
|Chemistry
 
|
 
|
*Rokjin Park says code is ready
 
*Waiting on clarification in which version this is implemented in.
 
  
|}
 
  
--[[User:Lizzie Lundgren|Lizzie Lundgren]] ([[User talk:Lizzie Lundgren|talk]]) 15:11, 29 June 2018 (UTC)
 
  
=== Over the horizon (6-12 months) ===
 
  
{| border=1 cellspacing=0 cellpadding=5
+
|-valign="top"
|- bgcolor="#cccccc"
+
|VCPs emissions
!width="400px"|Item
+
|Kelvin Bates (CU Boulder)
!width="250px"|Author(s)
+
|Emissions
!width="100px"|Type
+
|
!width="300px"|Status
+
  
 
|-valign="top"
 
|-valign="top"
|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
+
|Mesospheric source of CO
|Maria Zatko (UW)<br>Becky Alexander (UW)
+
|Dylan Jones (UofT), Pam Wales (GSFC)
|Science
+
|Emissions
 
|
 
|
*Delivered to GCST (Nov 2017)
 
*Needs to be added as a HEMCO extension, but converting from ancient v9-01-01 code may take significant effort.
 
  
 
|-valign="top"
 
|-valign="top"
|MEIC emissions over China (2000-2015)
+
|Drought-stress algorithm
|Lu Shen (Harvard)<br>Melissa Sulprizio (Harvard)
+
|Wei Li (U. Houston)
|Science
+
|Emissions
 
|
 
|
*Defer until MEIC paper is published
 
  
 
|-valign="top"
 
|-valign="top"
|GISS-GC (ICECAP/GCAP2) in standard model + benchmark
+
|Physically-based resolution correction for BVOC emissions using MEGAN
|Lee Murray (Rochester)<br>Eric Leibensperger (SUNY Plattsburgh)
+
|May Fu (SUSTech)
|Science
+
|Emissions
|Lee Murray replied:
+
|
*"I would say 6-12 months to be safe, but the goal is to have it done by the end of summer 2018.  There will actually be very minimal updates to GEOS-Chem; most of the updates are to modify the GISS model to output MERRA2-like data, to facilitate integration with GCHP and future updates to the CTM."
+
  
 
|-valign="top"
 
|-valign="top"
|GISS-GC GCHP
+
|Canadian forest fire prediction system (Canada government forecast model)
|Lee Murray (Rochester)<br>Pengfei Liu (Harvard)<br>Yang Li (Harvard)
+
|Robin (Montreal)
|Science
+
|Emissions
 
|
 
|
*Rochester and Harvard groups are coordinating, to avoid duplication of effort
 
  
 
|-valign="top"
 
|-valign="top"
|CESM-GC GCHP
+
|Furan emission factors (updates existing emissions)
|Seb Eastham (MIT)
+
|Lu Hu/Lixu Jin (Montana)
|Science
+
|Emissions
 
|
 
|
*Seb Eastham is now the lead developer.
 
*Estimate late 2018 or early 2019; validation will take time
 
  
 
|-valign="top"
 
|-valign="top"
|Additional modifications for [[FlexChem]], including:
+
|Cooking emissions (not biofuel)
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
+
|Kelvin Bates (CU Boulder)
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
+
|Emissions
|[[GCST]]
+
|Structural
+
 
|
 
|
*Mike Long, who was the principal proponent behind these updates, has since left the GC community.
 
*We are not sure who will take this over
 
  
 
|-valign="top"
 
|-valign="top"
|Dynamic fire modeling/prediction
+
|State-specific annual emissions scaling factors (US) (1990-2021)
|Shiliang Wu (MNT)
+
|Ishir Dutta (MIT)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Interannually varying ocean model BCs for Hg from ocean model
+
|GISS-GC online
|Colin Thackray (Harvard)
+
|Lee Murray (Rochester)
|Science
+
|External model
 
|
 
|
 +
 +
  
 
|-valign="top"
 
|-valign="top"
|PAH & PFCA simulations
+
|Hybrid MPI-OpenMP in GCHP
|Peter Ivatt (York)<br>Mat Evans (York)<br>Noelle Selin (MIT)<br>Colin Thackray (Harvard)
+
|Seb Eastham (MIT); Killian Murphy (York); Lizzie Lundgren (Harvard)
|Science
+
|GCHP
 
|
 
|
 +
  
 
|-valign="top"
 
|-valign="top"
|CH4 in full chemistry simulation
+
|MAPL3: Update to MAPL3 in GCHP, including replacement of ExtData.rc and HISTORY.rc with YAML files
|Seb Eastham (Harvard)
+
|Lizzie Lundgren (Harvard)
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Standard future land use maps (PFT, LAI) for RCP/CMIP6 simulations
+
|MAPL3: Comply with MAPL "positive" standard in GCHP diagnostic files
|Colette Heald (MIT)<br>Loretta Mickley (Harvard)
+
|Lizzie Lundgren (Harvard)
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Archive GISS met fields from CMIP6 scenarios for community
+
|MAPL3: Wildcards in GCHP History
|Lee Murray (Rochester)
+
|Lizzie Lundgren (Harvard)
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to cold-temperature deposition
+
|MAPL3: Output emissions with positive up convention in GCHP
|Lyatt Jaegle (UW)
+
|Lizzie Lundgren (Harvard)
|Science
+
|GCHP
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Simple parameterization for CO2-O3 dependence of stomatal resistance
+
|Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone
|Amos Tai (CUHK)
+
|Bob Yantosca (Harvard)
|Science
+
|Performance
 
|
 
|
 +
 +
  
 
|-valign="top"
 
|-valign="top"
|NH3 emissions over China
+
|Photophysical oxidation of aldehydes
|Lin Zhang (PKU)
+
|Paulo Sebastianelli/Jenny Fisher (University of Wollongong)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Using GEOS-Chem within GEOS-5
+
|DMS updates
|Loretta Mickley (Harvard)
+
|Will Porter (UCR)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Carbon cycle outputs in xCO2, xCH4 as a diagnostic
+
|Furans emission and chemistry
|Beata Bukosa (Wollongong)<br>Dylan Jones (UofT)
+
|Lixu Jin/Lu Hu(U Montana)
|Science
+
|Chemistry + <br>Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Seasonal EMEP emissions back to 1980
+
|Cl2 prodcution from Fe aerosol Qianjie Chen
|Mat Evans (York)
+
|(Hong Kong Poly)/Becky Alexander (UW)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to NO2 dry deposition
+
|VCP, cooking: tracers species added i.e., D5, ethanol affecting PAN
|Brian Boys (Dalhousie)
+
|Kevin Bates (CU Boulder)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|APM update and integration with most recent GEOS-Chem version
+
|bidirectional land-atmosphere exchange for Hg
|Gan Luo (SUNY Albany)
+
|Yuying Cui (MIT/Tsinghua)
|Structural
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Cosmogenic tracer production
+
|OH covariances for inversions
|Lee Murray (Rochester)
+
|Elise Penn (Harvard)
|Science
+
|Inversions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Explore resolution-consistent dust emissions
+
|CESM2-GC offline
*Make high-res concentrations or mass fluxes available offline, implement in met field processing
+
|Seb Eastham (ICL); Lee Murray (Rochester)
|David Ridley (MIT)<br>GCST<br>Nested Model WG
+
|Met fields
|Science
+
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Dust emissions at nested-grid resolutions
+
|Re-binning of off-line sea salt and dust for TOMAS
|Yuxuan Wang (U. Houston)<br>Jun Wang (U. Iowa)
+
|Betty Croft (Dalhousie)
|Science
+
|Microphysics
 
|
 
|
*Check for overlap with resolution-consistent dust emissions above
 
  
 
|-valign="top"
 
|-valign="top"
|[[Wet_deposition#Update_SO2_scavenging_in_convective_updrafts_for_consistency|Update SO2 scavenging in convective updrafts for consistency]]
+
|TOMAS nucleation updates
|Duncan Fairlie (NASA/LARC)  
+
|Sam O'Donnell (CSU)
|Science
+
|Microphysics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Sea salt emission from sea ice
+
|Stratospheric aerosol APM
|Jiayue Huang (UW)
+
|Fangqun Yu (SUNY Albany)
|Science
+
|Microphysics
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|[[GEOS-Chem_species_units|Uniformity of units]]
+
|Transition from MERRA-2 to GEOS-IT for benchmarking
|[[GCST]]
+
|Yuanjian Zhang (WashU)
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Automate integration testing on AWS
 +
|Yidan Tang (WashU)
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Integration testing: Add across end of year run
 +
|GCST
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Integration testing: Add GEOS-IT
 +
|Yuanjian Zhang (WashU)
 +
|Quality Assurance
 +
|
 +
 
 +
|-valign="top"
 +
|Separate mixing, emissions, and drydep
 +
|Yuanjian Zhang (WashU)
 
|Structural
 
|Structural
|Lizzie Lundgren wrote:
+
|
*We are not planning on resuming work to unify units in GEOS-Chem anytime soon. Any changes to units in the near future would be for better compatibility with other models, although none are currently planned. However, user consensus on preferred units would still be helpful to move the conversation forward.
+
 
 +
|-valign="top"
 +
|Intel IFX compiler
 +
|Bob Yantosca (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|CMake option to only build libraries but not executable, also passing C-preprocessor statements to turn off code
 +
|Bob Yantosca (Harvard); Lee Murray (Rochester)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Remove differences introduced when breaking up GC-Classic runs in time; and flexible precision in HEMCO
 +
|Lizzie Lundgren (Harvard)
 +
|Structural
 +
|
 +
 
 +
|-valign="top"
 +
|Limit allocation of State_Met to what is needed per simulation
 +
|Melissa Sulprizio (Harvard)
 +
|Structural
 +
|
  
 
|}
 
|}
  
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 19:42, 24 May 2018 (UTC)
+
== Longer term (12-24 months)==
  
=== 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.
  
 
{| border=1 cellspacing=0 cellpadding=5
 
{| border=1 cellspacing=0 cellpadding=5
 
|- bgcolor="#cccccc"
 
|- bgcolor="#cccccc"
!width="400px"|Item
+
!width="200px"|Feature
!width="250px"|Author(s)
+
!width="200px"|Contributor(s)
!width="100px"|Type
+
!width="100px"|Model scope
!width="300px"|Status
+
!width="420px"|Notes and References
  
 
|-valign="top"
 
|-valign="top"
|GCHP stretched grid
+
|Modal aerosol model (MAM7) in GCHP
|Jiawei Zhuang (Harvard)
+
|Shreya Sharma (MIT)
|Science
+
|Aerosols
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|1/8 degree nested-grid simulations with GEOS-FP
+
|Online OCIM ocean biogeochemistry
|Nested Model WG
+
|Lee Murray (Rochester); Hannah Horowitz (UIUC); Chris Holmes (FSU)
|Science
+
|Chemistry
 
|
 
|
*Wait for more interest
 
  
 
|-valign="top"
 
|-valign="top"
|Embedding GEOS-Chem into CESM
+
|Perchlorate chemistry
|Jean-Francois Lamarque (NCAR)
+
|Yuk Chun Chan (UW)
|Science
+
|Chemistry
 
|
 
|
*NOTE: Seb Eastham is already working on this
 
  
 
|-valign="top"
 
|-valign="top"
|Adjoint of carbon cycle simulation in GCHP
+
|Non-stomatal dry deposition (2-layer canopy model)
|Kevin Bowman (JPL)
+
|Michael Vermeuel (Purdue)
|Science
+
|Dry Deposition
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Isoprene chemistry v2 (new Caltech update)
+
|Continental chloride particle emissions (salty dust, road salt)
|Kelvin Bates (Caltech)
+
|Jessica Haskins (Utah)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Contemporary land cover: developing historical and updated GEOS-Chem land cover maps based on satellite remote sensing
+
|Multivolatility emission inventory to address gaps in EDGAR/HTAP etc.
|Jeff Geddes (BU)
+
|Ruochong (Tshingua)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Farquhar-Ball-Barry model to calculate stomatal resistance
+
|Lightning NOx production rates
|Amos Tai (CUHK)<br>Jeff Geddes (BU)
+
|Bex Horner (UCL)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Impacts of chemistry on ecosystem/carbon cycle
+
|HFO and CF3CHO
|Kevin Bowman (JPL)<br>Anthony Bloom (JPL)
+
|Beth Killen/Jenny Fisher (University of Wollongong)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Improved lightning emission scheme
+
|Glyoxal updates from isoprene
|Lee Murray (Rochester)
+
|Tzung-May Fu (SUSTech)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Resolution-independent lightning NOx
+
|Iodine chemistry
|Lee Murray (Rochester)
+
|Becky Alexander (UW)/Xuan Wang (cityU HK)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Bidirectional NH3 emissions
+
|Chlorine/Perchlorate
|Juliet Zhu (CSU)
+
|Yukchun Chan (UW)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Country-based weekday/weekend variability for EDGAR 4.2
+
|Playa dust chemistry to improve Cl over land
|Lee Murray (Rochester)<br>Christoph Keller (Harvard)
+
|Jessica Haskins (Utah)
|Science
+
|Chemistry
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Update keytone photolysis
+
|GFED5 biomass burning
|Jared Brewer (CSU)<br>Emily Fischer (CSU)
+
|Eric Roy (MIT)
|Science
+
|Emissions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Small alkyl nitrates
+
|Ocean Hg surface concentrations for 2010-2020 from multi-model ensemble
|Jenny Fisher (Wollongong)
+
|Eric Roy (MIT)/Ari Feinberg (IQF-CSIC)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|YIBS-GC chemistry-biosphere-fire coupling
+
|Soil Hg emissions 2010-2020
|Loretta Mickley (Harvard)<br>Xu Yue (IAP)
+
|Eric Roy (MIT)/Ari Feinberg (IQF-CSIC)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Nitrogen-LAI coupling
+
|Air-sea exchange parameterization
|Lin Zhang (PKU)<br>Amos Tai (CUHK)
+
|Eric Roy (MIT)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Implementing humidity/VPD dependence of dry deposition
+
|Soil Hg emissions parameterization
|Jennifer Murphy (U. Toronto)
+
|Ari Feinberg (IQF-CSIC)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|SO2 wet scavenging
+
|Sea salt uptake of GOM
|Duncan Fairlie (NASA Langley)
+
|Eric Roy (MIT)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Heterogeneous sulfate production
+
|Photoreduction rate constant
|Lin Zhang (PKU)<br>Becky Alexander (UW)<br>Yuxuan Wang (U. Houston)
+
|Eric Roy (MIT)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|MOSAIC implementation
+
|new observations (2010-2020) in standardized Hg benchmark for intercomparison
|Sebastian Eastham (Harvard)
+
|Eric Roy (MIT)/Ari Feinberg (IQF-CSIC)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Particle size climatology
+
|Hg simulation in GCHP
|Fangqun Yu (SUNY Albany)
+
|Eric Roy (MIT)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Sea salt/dust size distribution
+
|OCIM - biogeochemical model - (C/P/N/Fe - no Hg yet) (MATLAB)
|David Ridley (MIT)<br>Colette Heald (MIT)
+
|Hannah Horowitz (UIUC)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Updates to GTMM
+
|possibly updating Hg oxidation chemistry based on Utah field campaigns
|Rebecca Stern (Harvard)
+
|Jessica Haskins (Utah)
|Science
+
|Hg simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Tracer transport ocean
+
|New halogen/aerosol fields (surface area / AOD) from 10-year 14.4 benchmark simulation available online
|Chris Holmes (FSU)
+
|Viral Shah (NASA GMAO); Eric Roy (MIT); Ari Feinberg (IQF-CSIC)
|Science
+
|Input data
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Include Hg in full chemistry simulation
+
|Extend IMI to CO2 (ICI)
|Noelle Selin (MIT)
+
|Hannah Nesser (JPL)  
|Science
+
|Inversions
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Goddard seasonal weather prediction in GCHP
+
|Global emission inventory of metals
|Kevin Bowman (JPL)
+
|Tzung-May Fu (SUSTech); He Zhong Tian (Peking Normal U)
|Science
+
|Metals simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Climate index diagnostics (drought, etc.)
+
|Investigate and improve performance of aerosol chemistry
|Chemistry-ecosystems-climate WG
+
|Bob Yantosca (Harvard)
|Structural
+
|Performance
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Joint CO/CO2/CH4 simulation
+
|PAH - update from version 11
|Nicholas Deutscher (U. Wollongong)
+
|Lexia Cicone (MIT)
|Science
+
|POPs simulation
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Carbon coupling: oceans and terrestrial models
+
|Species database more accessible; doc updates; TOL discussion
|Chris Holmes (FSU)
+
|Jessica Haskins (Utah)
|Science
+
|Structural
 
|
 
|
*Ocim-pure physical transport, ECCO-Darwin ocean biogeochemistry
 
  
 
|-valign="top"
 
|-valign="top"
|DMS oxidation scheme updating
+
|Stretched-grid plotting in GCPy
|Qianjie Chen (UW)<br>Chemistry WG
+
|Killian Murphy (York)
|Science
+
|Tools
 
|
 
|
  
 
|-valign="top"
 
|-valign="top"
|Limiting NH3 uptake due to OA
+
|Model inter-comparison of transport (GEOS, GCHP, GCClassic)
|Rachel Silvern (Harvard)
+
|Lizzie Lundgren (Harvard), Emma Knowland (NASA)
|Science
+
|Transport
 
|
 
|
  
|}
+
|-valign="top"
 +
|Comparing mass fluxes in GCHP vs. traditional lat/lon wind
 +
|Yuanjian Zhang (WashU), Seb Eastham (ICL)
 +
|Transport
 +
|
  
--[[User:Bmy|Bob Yantosca]] ([[User talk:Bmy|talk]]) 15:32, 23 May 2018 (UTC)
+
|}

Revision as of 14:19, 25 June 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 14.5.0

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
New soil NOx parameterization Yi Wang (U. Iowa)
Jun Wang (U. Iowa)
Emissions Medium
Horizontal flux regridding fix in MAPL Tom Clune (GMAO) GCHP Medium
Cloud-J 7.7.2 for greater flexibility in external models Lizzie Lundgren (Harvard) Photolysis Medium
GCHP run directory improvements for mass flux, stretched grid, and GEOS-IT runs Lizzie Lundgren (Harvard) GCHP Medium
Fixes for GEOS-Chem 14.4 in CESM Haipeng Lin (Harvard)
Lizzie Lundgren (Harvard)
CESM 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
ALK4 & R4N2 chemistry Jared Brewer (UMN) Chemistry TBD Delivered
New version of CEDS at 0.1 deg Dandan Zhang (WashU) Emissions Simple Delivered June 2024
Remove differences in GC-Classic due to HEMCO reading REAL8 restart as REAL4 Lizzie Lundgren (Harvard) GC-Classic 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 Refereneces


Binary Activity Thermodynamic (BAT) model for non-ideal mixing of water and organics in organic aerosol Camilo Serrano and Andreas Zuend (McGill) Aerosols Not delivered
Extend aerosol settling Eloise Marais (UCL) Aerosols Not delivered
Comment back in Ca, Mg, and K cations in aerosol thermo (HETP) Becky Alexander (UW) Aerosols Not delivered
Seasalt aerosol from sea ice leads (2002-2011) Hannah (UIUC) Aerosols Not delivered
P/L species should not contribute to the error norm Obin Sturm (PSC) Chemistry Not delivered
Additional 6 peroxynitrates (many PANs like species); improve ALK4 & add ALK6 Katherine Travis (NASA LARC) Chemistry Not delivered
Monoterpene oxdation more species & oxdiation products Kevin Bates (CU Boulder) Chemistry Not delivered
PPN photolysis Eloise Marais (University College London) Chemistry Not delivered
global orgainc N dep from various emissions; nitrate aromatics updates Tzung-May Fu (SUSTech) Chemistry +
Deposition
Not delivered
adaptive chemistry (domain-specific) in WRF-GC Tzung-May Fu (SUSTech) Chemistry Not delivered
Alk4 from biogenic vs anthro Jared Brewer (UMN) Chemistry Not delivered
Dry deposition to F90 (readability) Chris Holmes (FSU) Dry Deposition Not delivered
Ecophysiology module in GEOS-Chem for biosphere-atmosphere exchange Joey Lam, Amos Tai (CUHK) Dry deposition Not delivered
FRP-based fire emissions for eastern US at 0.2 Chris Holmes (FSU) Emissions Not delivered
China agriculture NH3 emissions Amos Tai (CUHK) Emissions Not delivered
T-dependent anthropogenic VOCs May Fu (SUSTech) Emissions Not delivered
Rasterized shapefiles high-resolution for oil and gas infrastructure in North America Lee Murray (Rochester) Emissions Not delivered
New soil NOx parameterization Yi Wang (U. Iowa), Jun Wang (U. Iowa) Emissions Not delivered
New source functions for transport tracers beryllium-7 and beryllium-10 Minjie Zheng (ETH) Emissions Not delivered
LPJ land cover (global), fire (W US), dust emissions (SW N America), 1700-2100 Yang Li (Baylor University), Loretta Mickley (Harvard) Emissions Not delivered
Australian emissions Stephen MacFarlane/Jenny Fisher (UWollongong) Emissions Not delivered
Geogenic emissions (volcanic, rock weathering) Eric Roy (MIT) Emissions Not delivered
Biomass burning - FINN2.5 & GFED4 Eric Roy (MIT) Emissions Not delivered
BCC-GC online Lin Zhang (PKU) External Model Not delivered
GC-YIBS with online fire emissions Xu Yue; Hong Liao; Xu Yue (NUIST) External Model Not delivered
GISS-GC offline (GCAP) Lee Murray (Rochester) GCAP Not delivered
Archived TCR-2 OH fields for carbon simulations Kazu Miyazaki (JPL) Input data Not delivered
GOOPy (General Observation Operator in Python): for processing satellite and model output to produce column fields using averaging kernels Hannah Nesser (JPL) , Elise Penn (Harvard) Tools Not delivered
  • Could be added into GCPy as a Git submodule

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


Capture all trop and PBL height changes in budget diagnostics Chris Holmes (FSU)
Lizzie Lundgren (Harvard)
Diagnostics
Dust non-sphericity impacts on optical properties Inderjeet Singh (WashU) Aerosols
Fixes to stratospheric aerosol settling Connor Barker, Eloise Marais (UCL) Aerosols
DMS chemistry in v14 Linia Tashmim and Will Porter (UC Riverside) Chemistry
KPP standalone + 3D Interface Obin Sturm (PSC) Chemistry
Load balancing in chemistry solver (GCHP) Zhouran (Jordan) Sun (WashU) Chemistry +
Performance
UCX chemistry in mesosphere (GCHP/GCClassic) Helena McDonald (MIT) Chemistry
Updated aromatic oxidation Stephen MacFarlane/Jenny Fisher (University of Wollongong) Chemistry
MCO3 uptake by cloud forming MP; leading to lower PAN Laura Yang (Harvard) Chemistry
Implement isotope simulation for CH4 in the carbon simulation Lee Murray (Rochester) Chemistry
Active mesospheric chemistry Helena McDonald (MIT), Seb Eastham (IC) Chemistry
Documentation for adding additional aerosol species Connor Barker (UCL) Documentation
Column diagnostics Lizzie Lundgren (Harvard), Viral Shah (GMAO) Diagnostics
TOMAS rate diagnostics -- improve performance Betty Croft (WashU/Dal) Diagnostics +
Performance
Fix obspack - not working in 14.4.0 Bob Yantosca (Harvard) Diagnostics
Archive gamma values from heterogeneous chemistry Bob Yantosca (Harvard) Diagnostics
RRTMG Documentation GCST Documentation
Canopy Physics Model Sam Silva (MIT) Dry Deposition
Dry deposition diagnostics by land cover Holly Nowell, Chris Holmes (FSU) Dry Deposition
Dry deposition process diagnostics Holly Nowell, Chris Holmes (FSU) Dry Deposition
Biomass burning for TOMAS Nicole June (CSU) Emissions +
Microphysics
Historic biomass burning () Pengfei (Gtech) Emissions
Rice methane Zichong Cheng (Harvard) Emissions
Fire and anthropogenic emissions not currently turned on (monoterpenes, 1-butadiene etc.) Katie Travis / Kelvin Bates Emissions
Updated bottom-up global CH4 oil, gas, and coal emissions (GFEI v3) Melissa Sulprizio (Harvard), Tia Scarpelli (Carbon MAPPER) Emissions
New prior biospheric fluxes from CMS-FLUX and GMAO Kevin Bowman (JPL), Lesley Ott (GMAO) Emissions
Snowpack Br2 emission Chris Holmes (FSU) Emissions
EDGAR v8.1_toxHg emissions for 1970-2022 Eric Roy (MIT) Emissions
Improve pressure handling in GCHP advection Yuanjian Zhang (WashU), Seb Eastham (ICL) GCHP
Add error trap for duplicate scale factors in HEMCO Bob Yantosca (Harvard) HEMCO
Fix pressure handling in HEMCO standalone Melissa Sulprizio (Harvard) HEMCO
Integration testing: Add stretched grid Lizzie Lundgren (Harvard) Quality Assurance
Integration testing: Add GCAP2 GCST Quality Assurance
Integration testing: Add GCHP mass flux run Lizzie Lundgren (Harvard) Quality Assurance
Integration testing: Add run with all diagnostics turned on GCST Quality Assurance
Integration testing: Reinstate TOMAS40 Betty Croft (Dalhousie/WashU) Quality Assurance
Strat-adjusted RF in GCC and GCHP Connor Barker, Eloise Marais (UCL) Radiation
Continue cleanup of C-preprocessor switches Lizzie Lundgren (Harvard) Structural
updates to Luo deposition scheme Gan Luo Wet Deposition
Testing the use of a new scavenging parameterization developed by Luo and Yu for cold cloud with Pb-210 aerosol tracer Gan Luo (Albany), Fangqun Yu (Albany) Wet Deposition

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
ML algorithms for bulk aerosol Arshad Nair and Fangqun Yu (SUNY Albany) Aerosols


Heterogeneous sulfate chemistry Katie Travis Chemistry
H2 as an active species Seb Eastham (IC) Chemistry
HCN, acetonitrile as fire tracers Kevin Bates (CU Boulder) Chemistry
Implement ethane in carbon simulation Yuzhong Zhang (Westlake) Chemistry



VCPs emissions Kelvin Bates (CU Boulder) Emissions
Mesospheric source of CO Dylan Jones (UofT), Pam Wales (GSFC) Emissions
Drought-stress algorithm Wei Li (U. Houston) Emissions
Physically-based resolution correction for BVOC emissions using MEGAN May Fu (SUSTech) Emissions
Canadian forest fire prediction system (Canada government forecast model) Robin (Montreal) Emissions
Furan emission factors (updates existing emissions) Lu Hu/Lixu Jin (Montana) Emissions
Cooking emissions (not biofuel) Kelvin Bates (CU Boulder) Emissions
State-specific annual emissions scaling factors (US) (1990-2021) Ishir Dutta (MIT) Emissions
GISS-GC online Lee Murray (Rochester) External model


Hybrid MPI-OpenMP in GCHP Seb Eastham (MIT); Killian Murphy (York); Lizzie Lundgren (Harvard) GCHP


MAPL3: Update to MAPL3 in GCHP, including replacement of ExtData.rc and HISTORY.rc with YAML files Lizzie Lundgren (Harvard) GCHP
MAPL3: Comply with MAPL "positive" standard in GCHP diagnostic files Lizzie Lundgren (Harvard) GCHP
MAPL3: Wildcards in GCHP History Lizzie Lundgren (Harvard) GCHP
MAPL3: Output emissions with positive up convention in GCHP Lizzie Lundgren (Harvard) GCHP
Assessment/improvement of OpenMP performance in GC-Classic and HEMCO standalone Bob Yantosca (Harvard) Performance


Photophysical oxidation of aldehydes Paulo Sebastianelli/Jenny Fisher (University of Wollongong) Chemistry
DMS updates Will Porter (UCR) Chemistry
Furans emission and chemistry Lixu Jin/Lu Hu(U Montana) Chemistry +
Emissions
Cl2 prodcution from Fe aerosol Qianjie Chen (Hong Kong Poly)/Becky Alexander (UW) Chemistry
VCP, cooking: tracers species added i.e., D5, ethanol affecting PAN Kevin Bates (CU Boulder) Emissions
bidirectional land-atmosphere exchange for Hg Yuying Cui (MIT/Tsinghua) Hg simulation
OH covariances for inversions Elise Penn (Harvard) Inversions
CESM2-GC offline Seb Eastham (ICL); Lee Murray (Rochester) Met fields
Re-binning of off-line sea salt and dust for TOMAS Betty Croft (Dalhousie) Microphysics
TOMAS nucleation updates Sam O'Donnell (CSU) Microphysics
Stratospheric aerosol APM Fangqun Yu (SUNY Albany) Microphysics
Transition from MERRA-2 to GEOS-IT for benchmarking Yuanjian Zhang (WashU) Quality Assurance
Automate integration testing on AWS Yidan Tang (WashU) Quality Assurance
Integration testing: Add across end of year run GCST Quality Assurance
Integration testing: Add GEOS-IT Yuanjian Zhang (WashU) Quality Assurance
Separate mixing, emissions, and drydep Yuanjian Zhang (WashU) Structural
Intel IFX compiler Bob Yantosca (Harvard) Structural
CMake option to only build libraries but not executable, also passing C-preprocessor statements to turn off code Bob Yantosca (Harvard); Lee Murray (Rochester) Structural
Remove differences introduced when breaking up GC-Classic runs in time; and flexible precision in HEMCO Lizzie Lundgren (Harvard) Structural
Limit allocation of State_Met to what is needed per simulation Melissa Sulprizio (Harvard) Structural

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
Modal aerosol model (MAM7) in GCHP Shreya Sharma (MIT) Aerosols
Online OCIM ocean biogeochemistry Lee Murray (Rochester); Hannah Horowitz (UIUC); Chris Holmes (FSU) Chemistry
Perchlorate chemistry Yuk Chun Chan (UW) Chemistry
Non-stomatal dry deposition (2-layer canopy model) Michael Vermeuel (Purdue) Dry Deposition
Continental chloride particle emissions (salty dust, road salt) Jessica Haskins (Utah) Emissions
Multivolatility emission inventory to address gaps in EDGAR/HTAP etc. Ruochong (Tshingua) Emissions
Lightning NOx production rates Bex Horner (UCL) Emissions
HFO and CF3CHO Beth Killen/Jenny Fisher (University of Wollongong) Chemistry
Glyoxal updates from isoprene Tzung-May Fu (SUSTech) Chemistry
Iodine chemistry Becky Alexander (UW)/Xuan Wang (cityU HK) Chemistry
Chlorine/Perchlorate Yukchun Chan (UW) Chemistry
Playa dust chemistry to improve Cl over land Jessica Haskins (Utah) Chemistry
GFED5 biomass burning Eric Roy (MIT) Emissions
Ocean Hg surface concentrations for 2010-2020 from multi-model ensemble Eric Roy (MIT)/Ari Feinberg (IQF-CSIC) Hg simulation
Soil Hg emissions 2010-2020 Eric Roy (MIT)/Ari Feinberg (IQF-CSIC) Hg simulation
Air-sea exchange parameterization Eric Roy (MIT) Hg simulation
Soil Hg emissions parameterization Ari Feinberg (IQF-CSIC) Hg simulation
Sea salt uptake of GOM Eric Roy (MIT) Hg simulation
Photoreduction rate constant Eric Roy (MIT) Hg simulation
new observations (2010-2020) in standardized Hg benchmark for intercomparison Eric Roy (MIT)/Ari Feinberg (IQF-CSIC) Hg simulation
Hg simulation in GCHP Eric Roy (MIT) Hg simulation
OCIM - biogeochemical model - (C/P/N/Fe - no Hg yet) (MATLAB) Hannah Horowitz (UIUC) Hg simulation
possibly updating Hg oxidation chemistry based on Utah field campaigns Jessica Haskins (Utah) Hg simulation
New halogen/aerosol fields (surface area / AOD) from 10-year 14.4 benchmark simulation available online Viral Shah (NASA GMAO); Eric Roy (MIT); Ari Feinberg (IQF-CSIC) Input data
Extend IMI to CO2 (ICI) Hannah Nesser (JPL) Inversions
Global emission inventory of metals Tzung-May Fu (SUSTech); He Zhong Tian (Peking Normal U) Metals simulation
Investigate and improve performance of aerosol chemistry Bob Yantosca (Harvard) Performance
PAH - update from version 11 Lexia Cicone (MIT) POPs simulation
Species database more accessible; doc updates; TOL discussion Jessica Haskins (Utah) Structural
Stretched-grid plotting in GCPy Killian Murphy (York) Tools
Model inter-comparison of transport (GEOS, GCHP, GCClassic) Lizzie Lundgren (Harvard), Emma Knowland (NASA) Transport
Comparing mass fluxes in GCHP vs. traditional lat/lon wind Yuanjian Zhang (WashU), Seb Eastham (ICL) Transport