GSI aerosol and gases data assimilation

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GSI aerosol and gases data assimilation
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Outline

• JSDI proposal status
• Status on GSI gases and aerosols DA
• Issue on the CMAQ IC file

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JSDI Proposal Status

• GSI
• Task1.1 Modify the NCEP GSI to ingest satellite
  aerosol products ? DONE
• Task1.2 Refine prototype NEMS/GFS-GOCART system
  ? In Progress (see Sarahs report)
• Task1.3 Modify the NCEP GSI to include the
  model aerosols first guess (background) ? in
  progress (using general tracer)
• Task1.4 Obtain the statistics for error
  covariance matrix of aerosols YR2011
• Task1.5 Develop capability to assimilate
  aerosol observations from Task1 YR2011
• Task1.6 Conduct global aerosol data
  assimilation YR2011
• Task1.7 Conduct NAQFC aerosol LBCs impact
  study YR2012

• GBBEP
• Task2.1 Derive GBBEP emissions ? NESDIS
• Task2.2 Intercompare GBBEB/QFED/FLAMBE
  emissions ? NESDIS (obtain QFED data done)
• Task2.3 Evaluate GBBEP GFS-GOCART impact ? To
  be conducted (Ho-ChunNESDIS)
• Task2.4 Evaluate GBBEP LBC impacts ? To be
  conducted (Ho-Chun Youhua)
• Task2.5 Evaluate aerosol/dynamics feedback ?
  To be conducted (SarahNESDIS)

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The project list of global/regional gases and
aerosol DA using GSI
Organization Personnel Personnel Spatial scale First guess Observations Sponsor Agency Utilities development
NCEP EMC Ho-Chun Huang Jeff McQueen Bill Lapenta Global GFS-GOCART MODIS TC AOD In house general CRTM optical property for GOCART
NESIDS Qiang Zhao Shobha Kondragunta CONUS CMAQ/CB05 GOES TC AOD In house general CRTM optical property for CMAQ
ARL Tainfeng Tsai Daewon Byan CONUS CMAQ/CB05 MODIS TC AOD In house general NEMSIO convertor for CMAQ IC species
ARL Tainfeng Tsai Daewon Byan CONUS CMAQ/CB05 AIRNOW PM In house general NEMSIO convertor for CMAQ IC species
ARL Tainfeng Tsai Daewon Byan CONUS CMAQ/CB05 AIRNOW Ozone In house general NEMSIO convertor for CMAQ IC species
GSD Mariusz Pagowski George Grell Mariusz Pagowski George Grell CONUS CMAQ/CB05 AIRNOW PM NWS/AQ AIRNOW PrepBUFR read
GSD Mariusz Pagowski George Grell Mariusz Pagowski George Grell CONUS WRF-CHEM AIRNOW PM AFWA
NESDIS Allen Lenzen Brad Pierce CONUS CMAQ/CBxx GOES TC Ozone JSDI
NCAR Zhiquan Liu CONUS WRF-CHEM MODIS TC AOD AFWA MODIS BUFR utilities
Non-NCEP model
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(State variables)
MET CHEM (aerosolsgases) Model First Guess
Fields
Model First Guess input Binary, GFSIO, NEMSIO
Standard I/O
Operational Model (MET CHEM)
Standard I/O

• GSI MET DA
• GSI aerosol/gas DA
• (Control variables ? PMx, AOD or speciated
  retrievals)
• Background error
• Observation error
• QA/QC, thinning, etc

Input OBS (MET CHEM) BUFR,PrepBUFR
Model Analysis Fields (MET CHEM)
Satellite, In-Situ Observations
GSI Schematic Diagram
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If future observations become available
State Variable Dust Sulfate Sea salt BC OC
Control Variable Dust AOD Sulfate AOD Sea salt
AOD BC OC AOD
Observations Dust AOD Sulfate AOD Sea salt AOD BC
OC AOD
CRTM Routine to convert speciated mass fields to
speciated AOD
GSI
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(State variables)
MET CHEM (aerosolsgases) Model First Guess
Fields
Model First Guess input Binary, GFSIO, NEMSIO

• May need convertor for GSI IO
• May need separate input files for initial
  development

Standard I/O
Operational Model (MET CHEM)
Standard I/O

• GSI MET DA
• GSI aerosol/gas DA
• (Control variables ? PMx, AOD or speciated
  retrievals)
• Background error
• Observation error
• QA/QC, thinning, etc

Input OBS (MET CHEM) BUFR,PrepBUFR
Model Analysis Field (MET CHEM)
Satellite, In-Situ Observations
GSI Schematic Diagram
May need convertor for BUFR and PrepBUFR
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GSI DA
First Guess
Analysis
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Last cycle 48 hours output
CMAQ MODEL
Maybe script changes point to different IC file
Pull IC out of 48 Hours output
Create IC in POST
GSI DA
First Guess
Analysis
Combine ModelDA operational