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CERES SRBAVG Product Information


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SRBAVG Documentation

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

SRBAVG Product Features

  • The SRBAVG product contains monthly and monthly hourly regional, zonal, and global averages of the TOA and surface LW and SW fluxes and the observed cloud conditions for each 1-degree equal-angle region.
  • This product differs from the AVG product in three ways:
    • The surface fluxes have been calculated from the TOA fluxes using parameterizations provided by the science team, instead of using the models provided by the SARB Subsystem.
    • No flux fields are calculated at levels between TOA and the surface.
    • The regional TOA fluxes are calculated using two methods.
  • There is one produced for each spacecraft and one for each combination of spacecraft.
  • This product is written in HDF and contains metadata as well as gridded science data.
  • SRBAVG is composed of the following structures contained in three separate files (SRBAVG1, SRBAVG2, SRBAVG3) on a Regional, Zonal, and Global Basis:
    • Regional parameters (SRBAVG1).
    • Total-sky radiative fluxes at TOA and surface (SRBAVG1).
    • Clear-sky radiative fluxes at TOA and surface (SRBAVG1).
    • Surface data (SRBAVG1).
    • CERES and GEO Layer-averaged cloud properties (SRBAVG2).
    • CERES Layer-averaged cloud properties (SRBAVG3).
  • Input to the SRBAVG Subsystem is the Single Scanner Footprint TOA/Surface Fluxes (SSF) Level2 archival product.
  • Applicable Studies:
    • Angular dependent of radiance.
    • Cloud and aerosol properties comparison.
    • Cloud and aerosol radiative forcing estimate or comparison with other estimate.
    • Comparison of radiation, aerosol and cloud properties with model other then GCM (ie. LES, CRM).
    • Comparison with GCMs.
    • Instrument study.
    • Interpretation of radiation cloud and aerosol property variability.
    • Surface flux calculation with simple transfer model.
    • TOA flux only comparison.

SRBAVG Processing Flowchart


Image: SRBAVG Processing Flowchart



SRBAVG Product Parameters


TOA Fluxes
(observed)
Surface Fluxes
(parameterized)
In-Atmospheric
Fluxes
(N/A)
Cloud Properties
(MODIS and GEO)
[Diurnally Complete]
Aerosols
(N/A)
Auxiliary Data
(GMAO GEOS)
  • Shortwave Flux
  • Longwave Flux
  • Window-region Flux (8-12µm)
  • Net Flux
  • 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
  • Cloud Visible Optical Depth
 
  • Surface Type Percent Coverage
  • Snow/Ice Percent Coverage
  • Precipitable Water



SRBAVG Spatial and Temporal Resolutions


 

Spatial Resolutions

Temporal
Resolutions

Regional grid
(1°x1° latitude by longitude)
Zonal grid
(1° latitude)
Global
Monthly SRBAVG
Monthly Hourly SRBAVG







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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