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Viewing Geometry and Vertical Profile of SARB fluxes


The footprint has nominal nadir resolution of 20 km for half power points but is larger at other view angles (Figure 1). The major inputs (Figure 2) to the CRS software are the instantaneous scene identification, cloud and aerosol properties from the MODIS cloud imager pixels (resolution ~1 km), and TOA radiation (from the CERES instrument) contained on the respective SSF footprint; along with 6-hourly gridded fields of temperature, humidity, wind, and ozone, and climatological aerosol data contained on the Meteorological, Ozone, and Aerosol (MOA) product. MOA includes meteorological data provided by GEOS4 and the Stratospheric Monitoring Group Ozone Blended Analysis (SMOBA) (Yang et al. 2000) ozone profiles from NCEP. Aerosol information is taken from MODIS and from MATCH.

Image: CERES Viewing Geometry
Figure 1: Typical viewing geometry showing small MODIS pixels within large CERES footprints


Image: CERES Viewing Geometry
Figure 2: Inputs for determining the Surface and Atmosphere Radiation Budget (SARB)

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  Image: NASA Logo NASA Official: Dr. Norman Loeb
Page Curator: Edward Kizer
Page Last Modified: 10/16/2017 11:04:36 EST
Site Last Modified: 11/07/2017 17:18:43 EST