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CERES FSW Product Information

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FSW Documentation

  • Data Quality Summary link to external site — Highlights the accuracy of this product as determined by the CERES Science Team.

FSW Product Features

  • Hourly single satellite flux and cloud parameters diurnally averaged using the CERES temporal interpolation (GEO-enhanced) over 1.0-degree regions.
  • Each FSW covers a single month swath from a single CERES instrument mounted on one satellite.
  • The product is written in HDF and contains metadata as well as gridded science data.
  • The HDF product for TRMM consists of 8 files, each containing data for ten 1.0-degree equal-angle zones.
  • The HDF product for Terra and Aqua consists of 60 files, each containing data for three 1.0-degree equal-angle zones.
  • Each record contains spatially averaged data for an individual region.
  • Input to the FSW Subsystem is the Clouds and Radiative Swath (CRS) Level2 archival product.
  • The major categories of data output on the FSW are as follows:
    • Region data
    • Imager Radiances Statistics
    • Angular model scene classes
    • Radiative fluxes for both Clear-sky and Total-sky at TOA
    • Atmospheric flux profiles for Pristine-sky, Clear-sky and Total-sky
    • Flux Adjustments for Pristine-sky, Clear-sky and Total-sky
    • Surface Emissivity
    • Overlap data for eleven cloud conditions
    • Cloud category properties for four cloud layers
    • Adjustment parameters for four cloud layers
    • Adjustment parameters for clear-skies
  • Applicable Studies:
    • Cloud and aerosol properties comparison.
    • Comparison of radiation, aerosol and cloud properties with model other than GCM (ie. LES, CRM).
    • Comparison with GCMs.
    • Flux calculation with simple transfer model.
    • In situ Flux comparison over particular region.
    • Interpretation of radiation cloud and aerosol property variability.

FSW Processing Flowchart

Image: FSW Processing Flowchart

FSW Product Parameters

TOA Fluxes
(observed and computed)
Surface Fluxes
In-Atmospheric Fluxes
Cloud Properties
Auxiliary Data
  • Shortwave Flux
  • Longwave Flux
  • Window-region Flux (8-12µm)
  • Albedo
  • Shortwave Flux - Up
  • Longwave Flux - Up
  • Window-region Flux - Up
  • Shortwave Flux - Down
  • Longwave Flux - Down
  • Window-region Flux - Down
  • Surface Albedo
  • LW Surface Emissivity
  • WN Surface Emissivity
  • 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 Effective Optical Depths
  • MODIS Aerosol Land Corrected Optical Depths
  • Surface Type Percent Coverage
  • Snow/Ice Percent Coverage
  • Skin Temperature
  • Precipitable Water

FSW Spatial and Temporal Resolutions

  Spatial Resolutions
Regional grid
(1°x1° latitude by longitude)
Zonal grid
(1° latitude)
(Instantaneous Gridded)

FSW Product Availability

FSW Product Processing Status ( by year / by month / by product edition)
Product Sat
Level 3
FSW Terra
2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010
Level 3
Mar Terra FSW 2000 Available   Terra FSW 2001 Available   Terra FSW 2002 Available   Terra FSW 2003 Available   Terra FSW 2004 Available   Terra FSW 2005 Available   Terra FSW 2006 Available   Terra FSW 2007 Available   Terra FSW 2008 Available   Terra FSW 2009 Available Jun Terra FSW 2010 Available
 Aqua FSW 2000 Not Available  Aqua FSW 2001 Not Available Jul Aqua FSW 2002 Available   Aqua FSW 2003 Available   Aqua FSW 2004 Available   Aqua FSW 2005 Available   Aqua FSW 2006 Available Dec Aqua FSW 2007 Available  Aqua FSW 2008 Not Available  Aqua FSW 2009 Not Available  Aqua FSW 2010 Not Available

 Terra Available  Aqua Available  S-NPP Available  J01 Available
 Combined (Terra+Aqua)  Combined (Terra+NPP)  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
J01 FM6 11/18/2017 01/6/2018 Still in operation

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  Image: NASA Logo NASA Official: Dr. Norman Loeb
Page Curator: Edward Kizer
Page Last Modified: 11/01/2019 15:43:36 EST
Site Last Modified: 11/01/2019 15:44:53 EST