Application of the Doppler Spectrum of the Backscattering Microwave Signal for Monitoring of Ice Cover: A Theoretical View
In the radar remote sensing of sea ice, the main informative parameter is the backscattering radar cross section (RCS), which does not always make it possible to unambiguously determine the kind of scattering surface (ice/sea waves) and therefore leads to errors in estimating the area of the ice cov...
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ftdoajarticles:oai:doaj.org/article:1836da8b18024e3fafe1b49adb185df4 2023-05-15T18:18:12+02:00 Application of the Doppler Spectrum of the Backscattering Microwave Signal for Monitoring of Ice Cover: A Theoretical View Vladimir Karaev Yury Titchenko Maria Panfilova Maria Ryabkova Eugeny Meshkov Kirill Ponur 2022-05-01T00:00:00Z https://doi.org/10.3390/rs14102331 https://doaj.org/article/1836da8b18024e3fafe1b49adb185df4 EN eng MDPI AG https://www.mdpi.com/2072-4292/14/10/2331 https://doaj.org/toc/2072-4292 doi:10.3390/rs14102331 2072-4292 https://doaj.org/article/1836da8b18024e3fafe1b49adb185df4 Remote Sensing, Vol 14, Iss 2331, p 2331 (2022) Doppler spectrum of the reflected microwave signal ice cover sea waves antenna beam width and shift of the Doppler spectrum skewness and kurtosis coefficients Science Q article 2022 ftdoajarticles https://doi.org/10.3390/rs14102331 2022-12-30T22:55:14Z In the radar remote sensing of sea ice, the main informative parameter is the backscattering radar cross section (RCS), which does not always make it possible to unambiguously determine the kind of scattering surface (ice/sea waves) and therefore leads to errors in estimating the area of the ice cover. This paper provides a discussion of the possibility of using the Doppler spectrum of the reflected microwave signal to solve this problem. For the first time, a semi-empirical model of the Doppler spectrum of a radar microwave signal reflected by an ice cover was developed for a radar with a wide antenna beam mounted on a moving carrier at small incidence angles of electromagnetic waves (0°–19°). To describe the Doppler spectrum of the reflected microwave signal, the following parameters were used: shift and width of the Doppler spectrum, as well as skewness and kurtosis coefficients. Research was conducted on the influence of the main parameters of the measurement scheme (movement velocity, width of antenna beam, sounding direction, incidence angle) and the sea ice concentration (SIC) on the parameters of the Doppler spectrum. It was shown that, in order to determine the kind of scattering surface, it is necessary to use a wide or knife-like (by the incidence angle) antenna. Calculations confirmed the assumption that, when measured from a moving carrier, the Doppler spectrum is a reliable indicator of the transition from one kind of scattering surface to another. The advantage of using the coefficients of skewness and kurtosis in the analysis is that it is not necessary to keep the radar velocity unchanged during the measurement process. Article in Journal/Newspaper Sea ice Directory of Open Access Journals: DOAJ Articles Remote Sensing 14 10 2331 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Doppler spectrum of the reflected microwave signal ice cover sea waves antenna beam width and shift of the Doppler spectrum skewness and kurtosis coefficients Science Q |
spellingShingle |
Doppler spectrum of the reflected microwave signal ice cover sea waves antenna beam width and shift of the Doppler spectrum skewness and kurtosis coefficients Science Q Vladimir Karaev Yury Titchenko Maria Panfilova Maria Ryabkova Eugeny Meshkov Kirill Ponur Application of the Doppler Spectrum of the Backscattering Microwave Signal for Monitoring of Ice Cover: A Theoretical View |
topic_facet |
Doppler spectrum of the reflected microwave signal ice cover sea waves antenna beam width and shift of the Doppler spectrum skewness and kurtosis coefficients Science Q |
description |
In the radar remote sensing of sea ice, the main informative parameter is the backscattering radar cross section (RCS), which does not always make it possible to unambiguously determine the kind of scattering surface (ice/sea waves) and therefore leads to errors in estimating the area of the ice cover. This paper provides a discussion of the possibility of using the Doppler spectrum of the reflected microwave signal to solve this problem. For the first time, a semi-empirical model of the Doppler spectrum of a radar microwave signal reflected by an ice cover was developed for a radar with a wide antenna beam mounted on a moving carrier at small incidence angles of electromagnetic waves (0°–19°). To describe the Doppler spectrum of the reflected microwave signal, the following parameters were used: shift and width of the Doppler spectrum, as well as skewness and kurtosis coefficients. Research was conducted on the influence of the main parameters of the measurement scheme (movement velocity, width of antenna beam, sounding direction, incidence angle) and the sea ice concentration (SIC) on the parameters of the Doppler spectrum. It was shown that, in order to determine the kind of scattering surface, it is necessary to use a wide or knife-like (by the incidence angle) antenna. Calculations confirmed the assumption that, when measured from a moving carrier, the Doppler spectrum is a reliable indicator of the transition from one kind of scattering surface to another. The advantage of using the coefficients of skewness and kurtosis in the analysis is that it is not necessary to keep the radar velocity unchanged during the measurement process. |
format |
Article in Journal/Newspaper |
author |
Vladimir Karaev Yury Titchenko Maria Panfilova Maria Ryabkova Eugeny Meshkov Kirill Ponur |
author_facet |
Vladimir Karaev Yury Titchenko Maria Panfilova Maria Ryabkova Eugeny Meshkov Kirill Ponur |
author_sort |
Vladimir Karaev |
title |
Application of the Doppler Spectrum of the Backscattering Microwave Signal for Monitoring of Ice Cover: A Theoretical View |
title_short |
Application of the Doppler Spectrum of the Backscattering Microwave Signal for Monitoring of Ice Cover: A Theoretical View |
title_full |
Application of the Doppler Spectrum of the Backscattering Microwave Signal for Monitoring of Ice Cover: A Theoretical View |
title_fullStr |
Application of the Doppler Spectrum of the Backscattering Microwave Signal for Monitoring of Ice Cover: A Theoretical View |
title_full_unstemmed |
Application of the Doppler Spectrum of the Backscattering Microwave Signal for Monitoring of Ice Cover: A Theoretical View |
title_sort |
application of the doppler spectrum of the backscattering microwave signal for monitoring of ice cover: a theoretical view |
publisher |
MDPI AG |
publishDate |
2022 |
url |
https://doi.org/10.3390/rs14102331 https://doaj.org/article/1836da8b18024e3fafe1b49adb185df4 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Remote Sensing, Vol 14, Iss 2331, p 2331 (2022) |
op_relation |
https://www.mdpi.com/2072-4292/14/10/2331 https://doaj.org/toc/2072-4292 doi:10.3390/rs14102331 2072-4292 https://doaj.org/article/1836da8b18024e3fafe1b49adb185df4 |
op_doi |
https://doi.org/10.3390/rs14102331 |
container_title |
Remote Sensing |
container_volume |
14 |
container_issue |
10 |
container_start_page |
2331 |
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1766194668954976256 |