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CERES CRS Level2 Product Information


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CRS Level2 Documentation


CRS Level2 Product Features

  • This product provides Computed Fluxes for Consistent Clouds at the instantaneous footprint level.
    • Footprints identical to the SSF Level2 product for the CERES observed Top-of-Atmosphere (TOA) fluxes.
    • Designed to be compared with other Terra or Aqua based satellite products.
  • This product provides surface fluxes that are based on hourly radiative transfer computations.
  • CRS product provides computed fluxes based on the Fu-Liou radiative transfer model using GFDL-GEOS-4 atmosphere, MODIS clouds and MODIS/MATCH aerosols.
  • The TOA computed fluxes are also tuned to the CERES measured fluxes by adjusting cloud, surface and GEOS-4 atmosphere properties to provide consistent surface, profile and TOA fluxes and clouds.
    • Computed fluxes provided at the surface, 500mb, 200mb, 70mb and TOA.
    • Computed fluxes are given under pristine (no aerosol), clear-sky, all-sky (no aerosol) and all-sky conditions.
  • Applicable Studies:
    • Cloud and aerosol properties comparison
    • Cloud and aerosol radiative forcing estimate and comparison with other estimate
    • Comparison of radiation, aerosol and cloud properties with model other then GCM (ie. LES, CRM)
    • Flux calculation with simple transfer model
    • In situ Flux comparison over particular region
    • Interpretation of radiation cloud and aerosol property variability

CRS Level2 Processing Flowchart


Image: CRS Level2 Processing Flowchart



CRS Level2 Product Parameters


TOA Radiances
& Fluxes
(observed & computed)
Surface Fluxes
(computed & parameterized)
In-Atmospheric Fluxes
(computed)
Cloud Properties
(MODIS)
Aerosols
(MODIS)
Auxiliary Data
(GMAO GEOS)
  • Shortwave (0-5µm)
  • Longwave (5-100µm)
  • Window-region (8-12µm)
  • Shortwave Flux
  • Longwave Flux
  • Window-region Flux (8-12µm)
  • Shortwave Flux - Up
  • Longwave Flux - Up
  • Window-region Flux - Up
  • Shortwave Flux - Down
  • Longwave Flux - Down
  • Window-region Flux - Down
  • Net Shortwave Flux
  • Net Longwave Flux
  • LW Surface Emissivity
  • WN Surface Emissivity
  • Surface Albedo
  • Shortwave Flux - Up
  • Longwave Flux - Up
  • Window-region Flux - Up
  • Shortwave Flux - Down
  • Longwave Flux - Down
  • Window-region Flux - Down
  • Cloud Area Fraction
  • Cloud Effective Pressure
  • Cloud Effective Temperature
  • Cloud Effective Height
  • Cloud Top Pressure
  • Cloud Base Pressure
  • Cloud Particle Phase
  • Liquid Water Path
  • Ice Water Path
  • Water Particle Radius
  • Ice Particle Effective Diameter
  • Infrared Emissivity
  • Cloud Visible Optical Depth
  • MODIS Aerosol Ocean Percent Coverage
  • MODIS Aerosol Ocean Solution Index-small
  • MODIS Aerosol Ocean Solution Index-large
  • MODIS Aerosol Ocean Effective Optical Depths
  • MODIS Aerosol Land Percent Coverage
  • MODIS Aerosol Land Corrected Optical Depths
  • Surface Type Percent Coverage
  • Snow/Ice Percent Coverage
  • Skin Temperature
  • Total Column Precipitable Water
  • Upper Tropospheric Precipitable Water
  • Upper Tropospheric Humidity
  • Wind Speed



CRS Level2 Product Availability


CRS Level2 Product Processing Status ( by year / by month / by product edition)
Product Sat
Level 2
CRS Terra
Aqua
2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
Level 2
Mar  Terra CRS /2000 Available   Terra CRS /2001 Available   Terra CRS /2002 Available   Terra CRS /2003 Available   Terra CRS /2004 Available   Terra CRS /2005 Available   Terra CRS /2006 Available   Terra CRS /2007 Available   Terra CRS /2008 Available   Terra CRS /2009 Available Jun Terra CRS /2010 Available
 Aqua CRS /2000 Not Available  Aqua CRS /2001 Not Available Jul  Aqua CRS /2002 Available   Aqua CRS /2003 Available   Aqua CRS /2004 Available   Aqua CRS /2005 Available   Aqua CRS /2006 Available Dec Aqua CRS /2007 Available  Aqua CRS /2008 Not Available  Aqua CRS /2009 Not Available  Aqua CRS /2010 Not Available


Legend
 Terra Available  Aqua Available  S-NPP Available  Combined Available
 Not Available (odd rows)  Not Available (even rows)

  • By clicking on "by month", a more detailed table will be rendered with the ability to click on specific months for daily and hourly Level 2 and Level 1B products.
  • By clicking on "by product edition", a more detailed table will be rendered with the versions of the product available.

CERES Instrument Temporal Coverage
Spacecraft Instrument(s) Launch Date Start Date End Date
TRMM PFM 11/27/1997 12/27/1997 05/29/2001
Terra FM1 & FM2 12/18/1999 02/25/2000 Still in operation
Aqua FM3 & FM4 05/04/2002 06/19/2002 Still in operation
S-NPP FM5 10/28/2011 01/27/2012 Still in operation





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  Image: NASA Logo NASA Official: Dr. Norman Loeb
Page Curator: Edward Kizer
Page Last Modified: 02/17/2017 10:35:42 EST
Site Last Modified: 03/21/2017 12:11:13 EST