Field System For Measurement Of Atmospheric Propagation And Radiant Signatures

Stephen T. Hanley; Kenneth O. White

doi:10.1117/12.934034

23 June 1983 Field System For Measurement Of Atmospheric Propagation And Radiant Signatures

Stephen T. Hanley, Kenneth O. White

Proceedings Volume 0356, Field Measurement and Calibration Using Electro-Optical Equipment; (1983) https://doi.org/10.1117/12.934034
Event: 26th Annual Technical Symposium, 1982, San Diego, United States

Abstract

A description will be presented of a large aperture, high precision, simultaneous atmos-pheric propagation and radiant signature field measurement system. Novel features of the system include: simultaneous multispectral measurement of path radiance and transmission through the same air column, absolute laser calibrated transmissometery, visible and 8-12 μm imagery with 8-bit dynamic range digital recording, 2-12 pm Fourier Transform Spectroscopy with 0.03 cm-1 resolution, and digital data acquisition with real time data reduction through the use of on-line minicomputers. The flexible modular approach of the system will be shown as will its ability to address many atmospheric propagation and/or radiant emission problems in an unified manner, thereby permitting separation of combined physical processes in many cases. Preliminary data acquired by the system will be presented from: SMOKE IV (November 1981, Huntsville, Alabama) showing refractive effects of thermal plumes on laser beam propagation, and SNOW lA (January 1982, Burlington, Vermont) showing relative transmission of three broad spectral bands through falling and blowing snow utilizing a stable secondary standard IR source.

Citation Download Citation

Stephen T. Hanley and Kenneth O. White "Field System For Measurement Of Atmospheric Propagation And Radiant Signatures", Proc. SPIE 0356, Field Measurement and Calibration Using Electro-Optical Equipment, (23 June 1983); https://doi.org/10.1117/12.934034

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