Journal article
Analyses of Earth radiation budget data from unrestricted broadband radiometers on the ESSA-7 satellite
United States National Aeronautics and Space Administration, Wash., D.C., Technical Paper 1402, May, 1979, pp.1-56
01 May 1979
Abstract
Six months of data (Sept. 1968-Feb. 1969) from the wide-field-of-view, low-resolution, IR radiometers (LRIR) on the Environmental Science Services Administration, ESSA-7, satellite were analyzed. Earth-emitted and Earth-reflected irradiances were computed at satellite altitude by using data from a new in-flight calibration technique. Flux densities and albedos were computed for the top of the Earth's atmosphere (30 km). Monthly averages of these quantities over 10 degrees -lat. zones, each hemisphere, and the globe are presented for each month analyzed, and global distributions are presented for typical months. Emitted flux densities are generally lower and albedos higher than those of previous studies. This may be due, in part, to the fact that the ESSA-7 satellite was in a 1500 hr, Sun-synchronous orbit and some of the comparison data were obtained from satellites in 1200 hr, Sun-synchronous orbits. ESSA-7 detectors seem to smooth out spatial flux density variations better than scanning radiometers or wide-field-of-view, fixed-plate detectors. Significant longitudinal and latitudinal variations of emitted flux density and albedo were identified in the tropics in a zone extending about plus or minus 25 degrees lat.
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Details
- Title
- Analyses of Earth radiation budget data from unrestricted broadband radiometers on the ESSA-7 satellite
- Creators
- William WeaverFrederick House
- Publication Details
- United States National Aeronautics and Space Administration, Wash., D.C., Technical Paper 1402, May, 1979, pp.1-56
- Publisher
- National Aeronautics and Space Administration
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physics
- Identifiers
- 991021877359804721