High-order end-to-end model for the ERBE scanning thermistor bolometer radiometers

Martial P.A. Haeffelin; J. Robert Mahan; Nour E. Tira; Jeffrey L. Meekins; Robert Benjamin Lee III; Robert J. Keynton

doi:10.1117/12.154900

15 September 1993 High-order end-to-end model for the ERBE scanning thermistor bolometer radiometers

Martial P.A. Haeffelin, J. Robert Mahan, Nour E. Tira, Jeffrey L. Meekins, Robert Benjamin Lee III, Robert J. Keynton

Proceedings Volume 1934, Passive Infrared Remote Sensing of Clouds and the Atmosphere; (1993) https://doi.org/10.1117/12.154900
Event: Optical Engineering and Photonics in Aerospace Sensing, 1993, Orlando, FL, United States

Abstract

The Earth Radiation Budget Experiment (ERBE) consists of a suite of three scanning and four nonscanning radiometric instruments on each of three satellites which monitor the solar- reflected and Earth-emitted components of the Earth's radiative energy budget. A numerical model has been formulated to study the dynamic behavior and equivalence of the ERBE scanning thermistor bolometer radiometers. The finite difference method is applied to the detector of the ERBE scanning radiometer to characterize its thermal and electrical dynamic behavior. The thermal analysis confirms the thermal time constant of the instrument claimed by the vendor. The model reveals that the instrument can be very sensitive to spatial variations of the incident thermal radiation. However, the analysis confirms that the hypothesis of equivalence is justified for viewing typical Earth scenes. The high-order numerical model described in this paper is a key component of the end-to-end dynamic electrothermal model under development for the ERBE and CERES scanning radiometric channels.

Citation Download Citation

Martial P.A. Haeffelin, J. Robert Mahan, Nour E. Tira, Jeffrey L. Meekins, Robert Benjamin Lee III, and Robert J. Keynton "High-order end-to-end model for the ERBE scanning thermistor bolometer radiometers", Proc. SPIE 1934, Passive Infrared Remote Sensing of Clouds and the Atmosphere, (15 September 1993); https://doi.org/10.1117/12.154900

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