Difference between revisions of "GEOS-Chem v11-03"

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== Overview ==
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#REDIRECT [[GEOS-Chem 12]]
 
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=== History ===
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The table below shows the previous, current, and successive versions of GEOS-Chem:
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{| border=1 cellspacing=0 cellpadding=5
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|-align="center"
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!width="250px"|Previous version
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!width="250px" bgcolor="#CCFFFF"|This version
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!width="250px"|Next version
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|-align="center"
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|[[GEOS-Chem v11-02]]
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|bgcolor="#CCFFFF"|'''GEOS-Chem v11-03'''
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|TBD
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|-align="center"
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|TBD
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|bgcolor="#CCFFFF"|'''TBD'''
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|TBD
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|-align="center"
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|[[GEOS-Chem v11-02 benchmark history|View v11-02 benchmark history]]
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|bgcolor="#CCFFFF"|'''[[GEOS-Chem v11-03 benchmark history|View v11-03 benchmark history]]'''
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|TBD
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|}
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=== What's new in this version ===
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''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.''
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==== In the pipeline ====
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{| border=1 cellspacing=0 cellpadding=5
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|-bgcolor="#CCCCCC"
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!width="500px"|Feature
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!width="200px"|Submitted by
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!width="100px"|Type
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!width="150px"|Status
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|-
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!colspan="4" bgcolor="#CCFFFF"|Transport updates
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|-valign="top"
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|[https://www.geosci-model-dev-discuss.net/gmd-2017-125/ GEOS resolution & subgrid convection]
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|Karen Yu (Harvard)
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|Science
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|
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*Delivered to GCST (Oct 2017)
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|-valign="top"
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|[[Transport_Working_Group#Common_set_of_tracers_in_GEOS-Chem_and_GEOS|Common set of tracers in GEOS-Chem and GEOS]]
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|Transport WG<br>[[GCST]]
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|Benchmarking
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|
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|-
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!colspan="4" bgcolor="#CCFFFF"|Chemistry updates
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|-valign="top"
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|Heterogeneous uptake of NOx species by cloud droplets
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|Chris Holmes (FSU)
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|Science
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|
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|-valign="top"
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|Updated chlorine chemistry
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|Xuan Wang (Harvard)
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|Science
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|
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|-valign="top"
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|[[Stratospheric_chemistry#Treatment_of_the_mesosphere_in_UCX_simulations|Extend UCX into the mesosphere]]
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|Sebastian Eastham (MIT)
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|Science
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|
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|-
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!colspan="4" bgcolor="#CCFFFF"|Emissions updates
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|-valign="top"
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|[[Mineral_dust_aerosols#Anthropogenic_PM2.5_dust_source_in_GEOS-Chem|Anthropogenic PM2.5 dust source]]
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|Sajeev Philip (Dalhousie)
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|Science
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|" "
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|-valign="top"
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|MEIC emissions over China (2000-2015)
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|Lu Shen (Harvard)<br>Melissa Sulprizio (Harvard)
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|Science
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|
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|-valign="top"
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|Grid-independent emissions, including:
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*Lightning NOx emissions (3-hourly)
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*Dust emissions (hourly)
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*Biogenic and sea salt emissions (hourly)
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|Randall Martin (Dalhousie)<br>Lee Murray (Rochester)<br>David Ridley (MIT)<br>Jintai Lin (PKU)
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|Science
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|
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|-valign="top"
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|EPA-derived BC/OA emissions over US (1990-2012)
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|David Ridley (MIT)<br>Chi Li (Dalhousie)
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|Science
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|
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*Need to coordinate between Ridley and Li versions
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|-valign="top"
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|[[Sulfate_aerosols#Ocean_ammonia_emission_inventory|Ocean ammonia emission inventory]]
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|Fabien Paulot (NOAA/GFDL)
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|Science
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|
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*Data files delivered to GCST (Jan 2016)
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*Needs to be implemented via HEMCO
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|-valign="top"
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|[http://www.atmos-chem-phys.net/16/2819/2016/ A snow NOx source from deep snowpack]
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|Maria Zatko (UW)<br>Becky Alexander (UW)
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|Science
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|
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*Delivered to GCST (Nov 2017)
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*Implemented in v9-01-01
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*Needs to be added as a HEMCO extension
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|-valign="top"
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|[[MASAGE_NH3_inventory|MASAGE inventory in HEMCO as default]]
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|Fabien Paulot (NOAA/GFDL)<br>Amos Tai (CUHK)
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|Science
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|
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|-valign="top"
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|[[MASAGE_NH3_inventory#Non-agricultural_NH3_for_use_with_MASAGE|Non-agricultural NH3 for use with MASAGE]]
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|Amos Tai (CUHK)
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|Science
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|
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|-valign="top"
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|Radon emission update
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|Bo Zhang (NIA/NASA Langley)
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|Science
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|
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*Delivered to GCST (Nov 2017)
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*Implementation pending paper submission
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|-valign="top"
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|GFAS biomass burning emissions
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|Mat Evans (York)
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|Science
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|
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|-
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!colspan="4" bgcolor="#CCFFFF"|Deposition/surface updates
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|-valign="top"
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|Wet scavenging in mixed-phase clouds
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|Bo Zhang (NIA/NASA Langley)
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|Science
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|
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*Delivered to GCST (Nov 2017)
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*Only applied/tested for Pb
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*Implementation pending paper submission
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|-valign="top"
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|Harmonizing Henry's Law coefficients across wet and dry deposition
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|[[GCST]]
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|Science
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|
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|-valign="top"
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|[[Aerosols_Working_Group#Sedimentation_of_stratospheric_aerosols|Sedimentation of stratospheric aerosols]]
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|Sebastian Eastham (Harvard)
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|Science
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|
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|-
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!colspan="4" bgcolor="#CCFFFF"|Aerosol updates
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|-valign="top"
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|Sea salt aerosol alkalinity
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|Qianjie Chen (UW)<br>Becky Alexander (UW)<br>Xuan Wang (Harvard)
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|Science
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|
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*UW version delivered to GCST (Nov 2017)
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|-valign="top"
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|VBS SOA option
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|Rokjin Park (SNU)
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|Science
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|
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|-
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!colspan="4" bgcolor="#CCFFFF"|Specialty simulation updates
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|-valign="top"
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|[[CO2_simulation#CO2_emissions_are_double_counted|Fix double counting of CO2 emissions in CO2 simulations]]
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|Beata Bukosa (UW)
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|Bug fix
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|
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|-valign="top"
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|Oxidant fields from v10 for 2006-2012
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*3D chemical source for CO2, CO
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*OH for tagged CO & CH4
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|Dylan Jones (UofT)
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|Science
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|
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*Will make data files available on ftp site
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|-valign="top"
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|Year 2010 ocean Hg boundary conditions from ocean model
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|Hannah Horowitz (Harvard)
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|Science
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|
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|-valign="top"
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|Historical products emissions from Zhang et al. (2016), should become default
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|Colin Thackray (Harvard)
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|Science
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|
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|-valign="top"
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|AMAP/UNEP 2035 for Hg simulation
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|Helene Angot (MIT)
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|Science
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|
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|-valign="top"
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|Africa nested-grid for GEOS-FP and MERRA-2
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|Eloise Marais (U. Birmingham)
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|Science
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|
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*Delivered to GCST (Dec 2017)
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|-valign="top"
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|West Africa nested-grid for GEOS-FP
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|Mat Evans (York)<br>Eleanor Morris (York)
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|Science
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|
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|-valign="top"
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|[[Sulfate_aerosols#Tagged_sulfate_and_nitrate_simulation|Tagged sulfate simulation]]
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|Becky Alexander (UW)
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|Science
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|
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|-valign="top"
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|Arsenic simulation
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|Shiliang Wu (MT)
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|Science
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|
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|-
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!colspan="4" bgcolor="#CCFFFF"|Structural updates
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|-valign="top"
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|Updated flux diagnostics
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|Chris Holmes (Florida State)<br>[[GCST]]
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|Structural/<br>Benchmarking
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|
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|-valign="top"
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|Additional modifications for [[FlexChem]], including:
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*Rebuild the pre-built chemistry mechanisms (Standard, Tropchem, UCX, SOA, SOA-SVPOA) with [http://www.paratools.com/Kppa Kppa]
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*Add capability for custom chemistry mechanism by building KPP on-the-fly in GEOS-Chem
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|Mike Long (Harvard)<br>[[GCST]]
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|Structural
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|
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|-valign="top"
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|Benchmark of stratospheric simulation
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|Dylan Jones (U. Toronto)
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|Benchmarking
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|
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*1-yr benchmarks for GEOS-Chem v11-01d and later include comparisons with OSIRIS O3
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*Waiting on OSIRIS NO2 data
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*Waiting on comparisons with ACE-FTS data
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|-valign="top"
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|Add total column O3 to benchmarks
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|Chris Holmes (FSU)<br>[[GCST]]
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|Benchmarking
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|
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|-valign="top"
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|[[GEOS-Chem_species_units|Uniformity of units]]
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|[[GCST]]
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|Structural
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|
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*Phase 2 (unit uniformity throughout chemistry) to be implemented after Flexchem
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*Phase 3 (unit uniformity in some specialty simulations) will be implemented in pieces with input from 3rd party developers
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*Phase 4 (removal of area and area-dependent State_Met variables) will be ongoing
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|-valign="top"
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|ObsPack diagnostic as netCDF replacement for planeflight_mod.F
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|Andy Jacobson (NOAA/ESRL)
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|Structural
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|
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*Delivered to GCST (May 2017)
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|-valign="top"
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|[[GEOS-Chem_Output_Files#NetCDF_File_Format|NetCDF Output Phase 3b: Updates to eliminate differences between single and multi-segmented GEOS-Chem runs]]
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|[[GCST]]<br>Christoph Keller
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|Bug fix/Structural
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|
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|-
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!colspan="4" bgcolor="#CCFFFF"|Expansion of model capabilities
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|-valign="top"
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|[[FlexGrid|FlexGrid: Use HEMCO to read met fields and enable nested simulations over any custom domains]]
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|Jiawei Zhuang (Harvard)<br>Jintai Lin (PKU)
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|Structural
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|
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*Delivered to GCST (Oct 2016)
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|-valign="top"
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|[[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]]
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|Seb Eastham (Harvard)
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|Science
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|
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*Delivered to GCST (May 2017)
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|-valign="top"
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|Archival of roughness length for temperature z0T
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|[[GCST]]
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|Met processing
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|
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|}
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=== New data directories ===
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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.
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{| border=1 cellspacing=0 cellpadding=5
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|-bgcolor="#CCCCCC"
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!width="200px"|Inventory
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!width="400px"|What was added?
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!width="100px"|When added?
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!width="380px"|Directory
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|-valign="top"
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|
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|
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|
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|<tt></tt>
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|}
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== Validation ==
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In this section we provide information about the benchmarks and tests that we have done to validate GEOS-Chem v11-03.
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=== 1-month and 1-year benchmarks ===
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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]].
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=== Unit tests for GEOS-Chem v11-03 ===
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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. 
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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:
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{| border=1 cellspacing=0 cellpadding=5
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|-bgcolor="#CCCCCC"
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!width="100px"|Unit test
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!width="100px"|Date
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|-valign="top"
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|
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|}
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== Previous issues now resolved in GEOS-Chem v11-03 ==
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The following bugs and/or technical issues have been resolved in v11-03.
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== Outstanding issues not yet resolved in GEOS-Chem v11-03 ==
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TBD
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Latest revision as of 15:22, 20 June 2018

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