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CERES SFC Product Information

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SFC Documentation

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

SFC Product Features

  • The Monthly Gridded TOA/Surface Fluxes and Clouds (SFC) archival product contains hourly single satellite flux and cloud parameters averaged over regions in a 1.0-degree nested grid.
  • The data are processed and written in local time.
  • Input to the SFC Subsystem is the Single Scanner Footprint TOA/Surface Fluxes (SSF) Level2 archival product.
  • Each SFC 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.
  • For TRMM, data will be organized onto 8 SFC HDF files, each containing data for ten 1.0-degree equal-angle zones.
  • For Terra and Aqua, data will be organized onto 36 SFC HDF files, each containing data for five 1.0-degree equal-angle zones.
  • Each record contains spatially averaged data for an individual region.
  • The science data are Vdata with multiple records.
  • The major categories of data output on the SFC are as follows:
    • Region data.
    • Imager Radiances Statistics.
    • Angular model scene classes.
    • Total-sky radiative fluxes at TOA and Surface.
    • Clear-sky radiative fluxes at TOA and Surface.
    • Surface Emissivity.
    • Cloud category properties for four cloud layers.
  • Applicable Studies:
    • Cloud and aerosol properties comparison.
    • Surface flux calculation with simple transfer model.
    • TOA flux only comparison.

SFC Processing Flowchart

Image: SFC Processing Flowchart

SFC Product Parameters

TOA Fluxes
Surface Fluxes
Fluxes (N/A)
Cloud Properties
Auxiliary Data
  • Shortwave Flux
  • Longwave Flux
  • Window-region Flux (8-12µm)
  • Albedo
  • Shortwave Flux - Down
  • Longwave Flux - Down
  • Window-region Flux - Down
  • Net Shortwave Flux
  • Net Longwave Flux
  • LW Surface Emissivity
  • WN Surface Emissivity
  • 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 Optical Depths over Land & Ocean
  • Surface Type Percent Coverage
  • Snow/Ice Percent Coverage
  • Precipitable Water

SFC Spatial and Temporal Resolutions


Spatial Resolutions


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

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  Image: NASA Logo NASA Official: Dr. Norman Loeb
Page Curator: Edward Kizer
Page Last Modified: 10/16/2017 11:05:05 EST
Site Last Modified: 11/07/2017 17:18:43 EST