Locating the sections of ice hummocks on freshwater ice cover by infrared and microwave radiometric measurements

A. A. Gurulev; G. S. Bordonskiy

doi:10.1117/12.2603306

15 December 2021 Locating the sections of ice hummocks on freshwater ice cover by infrared and microwave radiometric measurements

A. A. Gurulev, G. S. Bordonskiy

Author Affiliations +

Proceedings Volume 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics; 1191616 (2021) https://doi.org/10.1117/12.2603306
Event: 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 2021, Moscow, Russian Federation

Abstract

In this study, field measurements of the thermal radiation of freshwater ice cover in the area of ice hummocks are presented. The studies were made at the wavelengths 8.8 mm and 2.3 cm and in the infrared band at the wavelengths 8– 14 μm. It has been demonstrated that the thermal radiation of ice hummocks compared with the background radiation of ice has primarily increased radiation power in the centimeter band but decreased values in the millimeter and IR-bands. In the IR-band, the satellite images (Landsat-8) show the same effect. Decrease of radio brightness in the millimeter band is related to the effect of radiation scattering on the inhomogeneities of the structure. In the IR-band, the effect may be determined by evaporation of snow from the surface of an ice hummock. This study will be of interest for the specialists investigating sea ice, on which ice hummocks are also formed.

Citation Download Citation

A. A. Gurulev and G. S. Bordonskiy "Locating the sections of ice hummocks on freshwater ice cover by infrared and microwave radiometric measurements", Proc. SPIE 11916, 27th International Symposium on Atmospheric and Ocean Optics, Atmospheric Physics, 1191616 (15 December 2021); https://doi.org/10.1117/12.2603306

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