Earth Radiation Budget Experiment scanner radiometric calibration resultsThe Earth Radiation Budget Experiment (ERBE) scanning radiometers are producing measurements of the incoming solar, earth/atmosphere-reflected solar, and earth/atmosphere-emitted radiation fields with measurement precisions and absolute accuracies, approaching 1 percent. ERBE uses thermistor bolometers as the detection elements in the narrow-field-of-view scanning radiometers. The scanning radiometers can sense radiation in the shortwave, longwave, and total broadband spectral regions of 0.2 to 5.0, 5.0 to 50.0, and 0.2 to 50.0 micrometers, respectively. Detailed models of the radiometers' response functions were developed in order to design the most suitable calibration techniques. These models guided the design of in-flight calibration procedures as well as the development and characterization of a vacuum-calibration chamber and the blackbody source which provided the absolute basis upon which the total and longwave radiometers were characterized. The flight calibration instrumentation for the narror-field-of-view scanning radiometers is presented and evaluated.
Document ID
19910051986
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lee, Robert B., III (NASA Langley Research Center Hampton, VA, United States)
Gibson, M. A. (NASA Langley Research Center Hampton, VA, United States)
Thomas, Susan (ST Systems Corp. Hampton, VA, United States)
Meekins, Jeffrey L. (NASA Langley Research Center Hampton, VA, United States)
Mahan, J. R. (Virginia Polytechnic Institute and State University Blacksburg, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1990
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: Long-term Monitoring of the Earth''s Radiation Budget