GEOS-Chem v11-03: Difference between revisions

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== Overview ==
#REDIRECT [[GEOS-Chem 12]]
 
=== History ===
 
The table below shows the previous, current, and successive versions of GEOS-Chem:
 
{| border=1 cellspacing=0 cellpadding=5
|-align="center"
!width="250px"|Previous version
!width="250px" bgcolor="#CCFFFF"|This version
!width="250px"|Next version
 
|-align="center"
|[[GEOS-Chem v11-02]]
|bgcolor="#CCFFFF"|'''GEOS-Chem v11-03'''
|TBD
 
|-align="center"
|TBD
|bgcolor="#CCFFFF"|'''TBD'''
|TBD
 
|-align="center"
|[[GEOS-Chem v11-02 benchmark history|View v11-02 benchmark history]]
|bgcolor="#CCFFFF"|'''[[GEOS-Chem v11-03 benchmark history|View v11-03 benchmark history]]'''
|TBD
|}
 
=== What's new in this version ===
 
''NOTE: v11-03a, v11-03b, etc. denote 1-month benchmark simulations, which are designed to evaluate GEOS-Chem's performance at intermediate stages of development.''
 
==== In the pipeline ====
 
{| border=1 cellspacing=0 cellpadding=5
|-bgcolor="#CCCCCC"
!width="500px"|Feature
!width="200px"|Submitted by
!width="100px"|Type
!width="150px"|Status
 
|-
!colspan="4" bgcolor="#CCFFFF"|Transport updates
 
|-valign="top"
|[https://www.geosci-model-dev-discuss.net/gmd-2017-125/ GEOS resolution & subgrid convection]
|Karen Yu (Harvard)
|Science
|
*Delivered to GCST (Oct 2017)
 
|-valign="top"
|[[Transport_Working_Group#Common_set_of_tracers_in_GEOS-Chem_and_GEOS|Common set of tracers in GEOS-Chem and GEOS]]
|Transport WG<br>[[GCST]]
|Benchmarking
|
 
|-
!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
 
|-valign="top"
|Updated chlorine chemistry, including:
*[[Halogen_chemistry_mechanism#Fix_for_HOBr_.2B_X-_in_cloud_and_on_SSA|Fix for HOBr + X- in cloud and on SSA]]
|Xuan Wang (Harvard)
|Science
|
 
|-
!colspan="4" bgcolor="#CCFFFF"|Emissions updates
 
|-valign="top"
|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
|Fabien Paulot (NOAA/GFDL)
|Science
|
*Data files delivered to GCST (Jan 2016)
*Needs to be implemented via HEMCO
 
|-valign="top"
|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
|Maria Zatko (UW)<br>Becky Alexander (UW)
|Science
|
*Delivered to GCST (Nov 2017)
*Implemented in v9-01-01
*Needs to be added as a HEMCO extension
 
|-valign="top"
|[[MASAGE_NH3_inventory|MASAGE inventory in HEMCO as default]]
|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
|Science
|
 
|-valign="top"
|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
|Amos Tai (CUHK)
|Science
|
 
|-valign="top"
|Radon emission update
|Bo Zhang (NIA/NASA Langley)
|Science
|
*Delivered to GCST (Nov 2017)
*Implementation pending paper submission
 
|-valign="top"
|GFAS biomass burning emissions
|Mat Evans (York)
|Science
|
 
|-
!colspan="4" bgcolor="#CCFFFF"|Deposition/surface updates
 
|-valign="top"
|Wet scavenging in mixed-phase clouds
|Bo Zhang (NIA/NASA Langley)
|Science
|
*Delivered to GCST (Nov 2017)
*Only applied/tested for Pb
*Implementation pending paper submission
 
|-valign="top"
|Harmonizing Henry's Law coefficients across wet and dry deposition
|[[GCST]]
|Science
|
 
|-valign="top"
|[[Aerosols_Working_Group#Sedimentation_of_stratospheric_aerosols|Sedimentation of stratospheric aerosols]]
|Sebastian Eastham (Harvard)
|Science
|
 
|-
!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
 
|-valign="top"
|Sea salt aerosol alkalinity
|Qianjie Chen (UW)<br>Becky Alexander (UW)<br>Xuan Wang (Harvard)
|Science
|
*UW version delivered to GCST (Nov 2017)
 
|-valign="top"
|VBS SOA option
|Rokjin Park (SNU)
|Science
|
 
|-
!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
 
|-valign="top"
|Oxidant fields from v10 for 2006-2012
*3D chemical source for CO2, CO
*OH for tagged CO & CH4
|Dylan Jones (UofT)
|Science
|
*Will make data files available on ftp site
 
|-valign="top"
|Year 2010 ocean Hg boundary conditions from ocean model
|Hannah Horowitz (Harvard)
|Science
|
 
|-valign="top"
|Historical products emissions from Zhang et al. (2016), should become default
|Colin Thackray (Harvard)
|Science
|
 
|-valign="top"
|AMAP/UNEP 2035 for Hg simulation
|Helene Angot (MIT)
|Science
|
 
|-valign="top"
|Africa nested-grid for GEOS-FP and MERRA-2
|Eloise Marais (U. Birmingham)
|Science
|
*Delivered to GCST (Dec 2017)
 
|-valign="top"
|West Africa nested-grid for GEOS-FP
|Mat Evans (York)<br>Eleanor Morris (York)
|Science
|
 
|-valign="top"
|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
|Becky Alexander (UW)
|Science
|
 
|-valign="top"
|Arsenic simulation
|Shiliang Wu (MT)
|Science
|
 
|-
!colspan="4" bgcolor="#CCFFFF"|Structural updates
 
|-valign="top"
|Updated flux diagnostics
|Chris Holmes (Florida State)<br>[[GCST]]
|Structural/<br>Benchmarking
|
 
|-valign="top"
|Additional modifications for [[FlexChem]], including:
*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, UCX, SOA, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
|Mike Long (Harvard)<br>[[GCST]]
|Structural
|
 
|-valign="top"
|Benchmark of stratospheric simulation
|Dylan Jones (U. Toronto)
|Benchmarking
|
*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"
|[[GEOS-Chem_species_units|Uniformity of units]]
|[[GCST]]
|Structural
|
*Phase 2 (unit uniformity throughout chemistry) to be implemented after Flexchem
*Phase 3 (unit uniformity in some specialty simulations) will be implemented in pieces with input from 3rd party developers
*Phase 4 (removal of area and area-dependent State_Met variables) will be ongoing
 
|-valign="top"
|ObsPack diagnostic as netCDF replacement for planeflight_mod.F
|Andy Jacobson (NOAA/ESRL)
|Structural
|
*Delivered to GCST (May 2017)
 
|-valign="top"
|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3b: Updates to eliminate differences between single and multi-segmented GEOS-Chem runs]]
|[[GCST]]<br>Christoph Keller
|Bug fix/Structural
|
 
|-
!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
 
|-valign="top"
|[[FlexGrid|FlexGrid: Use HEMCO to read met fields and enable nested simulations over any custom domains]]
|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
|Structural
|
*Delivered to GCST (Oct 2016)
 
|-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]]
|Seb Eastham (Harvard)
|Science
|
*Delivered to GCST (May 2017)
 
|-valign="top"
|Archival of roughness length for temperature z0T
|[[GCST]]
|Met processing
|
 
|}
 
=== New data directories ===
 
The following [[HEMCO data directories]] have been added or updated for GEOS-Chem v11-02.  You will have to download the directories relevant to your simulation.
 
{| border=1 cellspacing=0 cellpadding=5
|-bgcolor="#CCCCCC"
!width="200px"|Inventory
!width="400px"|What was added?
!width="100px"|When added?
!width="380px"|Directory
 
 
|-valign="top"
|
|
|
|<tt></tt>
 
|}
 
== Validation ==
 
In this section we provide information about the benchmarks and tests that we have done to validate GEOS-Chem v11-03.
 
=== 1-month and 1-year benchmarks ===
 
For complete information about the benchmark simulations used to validate GEOS-Chem v11-03, please see [[GEOS-Chem v11-03 benchmark history|our ''GEOS-Chem v11-03 benchmark history'' wiki page]].
 
=== Unit tests for GEOS-Chem v11-03 ===
 
We perform a full set of unit tests on GEOS-Chem on an almost daily basis.  These tests ensure that each new feature being added does not break any existing functionality. 
 
Here are the unit tests that we ran before submitting 1-month benchmark simulation for v11-03. Click on the links below to see the results from each set of unit tests:
 
{| border=1 cellspacing=0 cellpadding=5
|-bgcolor="#CCCCCC"
!width="100px"|Unit test
!width="100px"|Date
 
|-valign="top"
|
|
 
|}
 
== Previous issues now resolved in GEOS-Chem v11-03 ==
 
The following bugs and/or technical issues have been resolved in v11-03.
 
== Outstanding issues not yet resolved in GEOS-Chem v11-03 ==
 
TBD

Latest revision as of 15:22, 20 June 2018

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