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Proceedings Paper

Microwave absorption ambiguity of pine needles at negative temperatures
Author(s): A. A. Gurulev; I. I. Zheleznyak; S. V. Tsyrenzhapov
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Paper Abstract

The paper presents experimental data on electromagnetic radiation propagation at a frequency of 5.2 GHz through pine needles at negative temperatures. Hysteresis of electromagnetic losses under a temperature cycling in the range from -10 to -30°С is revealed. Variations in the signal power at the same temperature and mean attenuation of 3 dB reach 1.6 dB. This effect should be taken into account under remote sensing of coniferous forests in winter.

Paper Details

Date Published:
PDF: 4 pages
Proc. SPIE 10466, 23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 104660I; doi: 10.1117/12.2281271
Show Author Affiliations
A. A. Gurulev, Inst. of Natural Resources, Ecology and Cryology (Russian Federation)
I. I. Zheleznyak, Inst. of Natural Resources, Ecology and Cryology (Russian Federation)
S. V. Tsyrenzhapov, Institute of Natural Resources, Ecology, and Cryology (Russian Federation)


Published in SPIE Proceedings Vol. 10466:
23rd International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
Oleg A. Romanovskii, Editor(s)

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