Remote sensing of water salinity at decameter wavelengths

Author

Kachan, Michael V. ; Pimenov, Sergey F.

Author_Institution

Inst. of Phys., Rostov on Don, Russia

Volume

35

Issue

2

fYear

1997

fDate

3/1/1997 12:00:00 AM

Firstpage

302

Lastpage

306

Abstract

The possibility of remote sensing of surface water salinity in the decametric wave range is studied. The theoretical consideration of sensitivities to salinity variations proves the decametric range to be best for measuring small water salinities [0.3-5 parts per thousand ( ⁰/₀₀) at 30 MHz]. The conclusion is confirmed by 30 MHz radar experiments, which show a good agreement with the in situ data in the range 0.3-30 ⁰/₀₀. Radar contrasts of about 0.35 db and 1.6 db are observed when salinity changes from 0.3 ⁰/₀₀ to 1.2 ⁰/₀₀ and to 30 ⁰/₀₀, correspondingly

Keywords

backscatter; electromagnetic wave scattering; oceanographic techniques; radar cross-sections; radar theory; remote sensing by radar; 30 MHz; HF radar; VHF radar; backscatter; decameter wavelength; decametre radar; measurement technique; ocean; radar contrast; radar remote sensing; radar scattering; radar theory; salinity; sea surface; Conductivity; Frequency; Radar measurements; Radar remote sensing; Remote sensing; Sea measurements; Sea surface; Surface waves; UHF measurements; Wavelength measurement;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.563270

Filename

563270