Sea Ice Concentration Manifestation in Radar Signal at Low Incidence Angles Depending on Wind Speed
In previous studies, the possibilities of Ku-band radar measurements at low incidence angles were investigated for the task of sea ice detection. In this paper, the sensitivity of normalized radar cross-section to sea ice concentration is investigated at various wind conditions. The data of Ku-band...
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MDPI AG
2025-05-01
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| author | Maria Panfilova Vladimir Karaev |
| author_facet | Maria Panfilova Vladimir Karaev |
| author_sort | Maria Panfilova |
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| description | In previous studies, the possibilities of Ku-band radar measurements at low incidence angles were investigated for the task of sea ice detection. In this paper, the sensitivity of normalized radar cross-section to sea ice concentration is investigated at various wind conditions. The data of Ku-band radar onboard GPM satellite are used, and the sea ice concentration product from Bremen University website is implemented as reference data and the information on wind speed from reanalysis was applied. Simple analytical parameterization was obtained for the normalized radar cross-section depending on sea ice concentration and wind speed for various incidence angles using the regression method. The threshold behavior of the normalized radar cross-section with increase in wind speed was revealed and preferable wind conditions for sea ice concentration detection were identified. |
| format | Article |
| id | doaj-art-b7602311fe4f416daef952d791550f9f |
| institution | OA Journals |
| issn | 2072-4292 |
| language | English |
| publishDate | 2025-05-01 |
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| series | Remote Sensing |
| spelling | doaj-art-b7602311fe4f416daef952d791550f9f2025-08-20T02:22:59ZengMDPI AGRemote Sensing2072-42922025-05-011711185810.3390/rs17111858Sea Ice Concentration Manifestation in Radar Signal at Low Incidence Angles Depending on Wind SpeedMaria Panfilova0Vladimir Karaev1Federal Research Center A.V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences (IAP RAS), 603950 Nizhny Novgorod, RussiaFederal Research Center A.V. Gaponov-Grekhov Institute of Applied Physics of the Russian Academy of Sciences (IAP RAS), 603950 Nizhny Novgorod, RussiaIn previous studies, the possibilities of Ku-band radar measurements at low incidence angles were investigated for the task of sea ice detection. In this paper, the sensitivity of normalized radar cross-section to sea ice concentration is investigated at various wind conditions. The data of Ku-band radar onboard GPM satellite are used, and the sea ice concentration product from Bremen University website is implemented as reference data and the information on wind speed from reanalysis was applied. Simple analytical parameterization was obtained for the normalized radar cross-section depending on sea ice concentration and wind speed for various incidence angles using the regression method. The threshold behavior of the normalized radar cross-section with increase in wind speed was revealed and preferable wind conditions for sea ice concentration detection were identified.https://www.mdpi.com/2072-4292/17/11/1858dual-frequency precipitation radarglobal precipitation measurement satellitenear nadir normalized radar cross-sectionsea ice concentrationwind speedparameterization |
| spellingShingle | Maria Panfilova Vladimir Karaev Sea Ice Concentration Manifestation in Radar Signal at Low Incidence Angles Depending on Wind Speed Remote Sensing dual-frequency precipitation radar global precipitation measurement satellite near nadir normalized radar cross-section sea ice concentration wind speed parameterization |
| title | Sea Ice Concentration Manifestation in Radar Signal at Low Incidence Angles Depending on Wind Speed |
| title_full | Sea Ice Concentration Manifestation in Radar Signal at Low Incidence Angles Depending on Wind Speed |
| title_fullStr | Sea Ice Concentration Manifestation in Radar Signal at Low Incidence Angles Depending on Wind Speed |
| title_full_unstemmed | Sea Ice Concentration Manifestation in Radar Signal at Low Incidence Angles Depending on Wind Speed |
| title_short | Sea Ice Concentration Manifestation in Radar Signal at Low Incidence Angles Depending on Wind Speed |
| title_sort | sea ice concentration manifestation in radar signal at low incidence angles depending on wind speed |
| topic | dual-frequency precipitation radar global precipitation measurement satellite near nadir normalized radar cross-section sea ice concentration wind speed parameterization |
| url | https://www.mdpi.com/2072-4292/17/11/1858 |
| work_keys_str_mv | AT mariapanfilova seaiceconcentrationmanifestationinradarsignalatlowincidenceanglesdependingonwindspeed AT vladimirkaraev seaiceconcentrationmanifestationinradarsignalatlowincidenceanglesdependingonwindspeed |