Utility of the 4.6- to 4.9-um atmospheric window for remote sensing of background temperature

Baruch Ben-Dor; Leslie Salem Balfour; Eli T. Talmor; Avshalom Pasternak

doi:10.1117/12.177516

1 September 1994 Utility of the 4.6- to 4.9-μm atmospheric window for remote sensing of background temperature

Baruch Ben-Dor, Leslie Salem Balfour, Eli T. Talmor, Avshalom Pasternak

Author Affiliations +

Optical Engineering, Vol. 33, Issue 9, (September 1994). https://doi.org/10.1117/12.177516

Abstract

A field measurement program was initiated to determine the utility of the 4.6- to 4.9-μm spectral region as a remote temperature sensing channel. A spectroradiometer (covering the 1.3- to 14-μm region) was used to determine effective surface temperatures of various natural objects both in the 4.6- to 4.9-μm and the commonly used 10.5- to 12.5-μm regions. Comparisons of the effective temperatures obtained from both short-range (30 to 300 m) and long-range (3 to 10 km) measurements are presented. For measurements at short ranges, the deduced effective temperature for each region wascompared with contact temperature measurement of the surface. For measurements over long ranges, the effective temperatures were compared after having accounted for path radiance effects. Accurate path radiance corrections were made from measurements over the tail region of the 4.3-μm CO₂ absorption band.

Citation Download Citation

Baruch Ben-Dor, Leslie Salem Balfour, Eli T. Talmor, and Avshalom Pasternak "Utility of the 4.6- to 4.9-μm atmospheric window for remote sensing of background temperature," Optical Engineering 33(9), (1 September 1994). https://doi.org/10.1117/12.177516

Published: 1 September 1994

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