Classification of Ice in Lützow-Holm Bay, East Antarctica, Using Data from ASCAT and AMSR2
This paper presents an ice classification algorithm based on combined active and passive microwave radiometer data in Lützow-Holm Bay (LHB), East Antarctica. The ice classification algorithm is developed based on the threshold values of an advanced scatterometer (ASCAT) and advanced microwave scanni...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-09-01
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| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/12/19/3179 |
| _version_ | 1827705262203469824 |
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| author | Seita Hoshino Kazutaka Tateyama Koh Izumiyama |
| author_facet | Seita Hoshino Kazutaka Tateyama Koh Izumiyama |
| author_sort | Seita Hoshino |
| collection | DOAJ |
| description | This paper presents an ice classification algorithm based on combined active and passive microwave radiometer data in Lützow-Holm Bay (LHB), East Antarctica. The ice classification algorithm is developed based on the threshold values of an advanced scatterometer (ASCAT) and advanced microwave scanning radiometer 2 (here, AMSR2). These values are calculated via the features of various ice types, including open ice, first-year (FY) ice, multi-year (MY) ice, MY ice including icebergs (MY IB), ice shelves, coastal ice sheets, and inland ice sheets. To verify the validity of the ice classification algorithm, the algorithm results are compared with visual observation data and satellite imagery. Except for the flaw polynya and area with surface melting, the FY ice, MY ice, and the ice shelf areas estimated here using the proposed ice classification algorithm match those discernible from the verification data. Inter-annual changes in the areal extents of FY ice, MY ice, and the ice shelves are investigated here using the proposed ice classification algorithm. Investigation of MY ice and ice shelf areas revealed that the breakup of MY ice induced a breakup of an ice shelf. A comparison of the FY ice and MY ice areas showed the replacement of these ice types. The proposed ice classification algorithm can detect ice breakup events as quantitative changes in the distribution and ice type. In future work, we plan to classify sea ice in other sea ice areas, applying the proposed algorithm throughout the Antarctic region. |
| first_indexed | 2024-03-10T15:59:43Z |
| format | Article |
| id | doaj.art-5bb5e4c4b39743f88921b774488b8202 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-10T15:59:43Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-5bb5e4c4b39743f88921b774488b82022023-11-20T15:23:55ZengMDPI AGRemote Sensing2072-42922020-09-011219317910.3390/rs12193179Classification of Ice in Lützow-Holm Bay, East Antarctica, Using Data from ASCAT and AMSR2Seita Hoshino0Kazutaka Tateyama1Koh Izumiyama2Aeronautical Technology Directorate, Japan Aero Exploration Agency, 6-13-1 Osawa Mitaka, Tokyo 183-0002, JapanEnvironment Protection and Disaster Prevention Course Program, Kitami Institute of Technology, 165 Koen-cho Kitami, Hokkaido 090-8507, JapanArctic Research Center, Hokkaido University, Kita-21 Kita-ku, Sapporo 001-0021, JapanThis paper presents an ice classification algorithm based on combined active and passive microwave radiometer data in Lützow-Holm Bay (LHB), East Antarctica. The ice classification algorithm is developed based on the threshold values of an advanced scatterometer (ASCAT) and advanced microwave scanning radiometer 2 (here, AMSR2). These values are calculated via the features of various ice types, including open ice, first-year (FY) ice, multi-year (MY) ice, MY ice including icebergs (MY IB), ice shelves, coastal ice sheets, and inland ice sheets. To verify the validity of the ice classification algorithm, the algorithm results are compared with visual observation data and satellite imagery. Except for the flaw polynya and area with surface melting, the FY ice, MY ice, and the ice shelf areas estimated here using the proposed ice classification algorithm match those discernible from the verification data. Inter-annual changes in the areal extents of FY ice, MY ice, and the ice shelves are investigated here using the proposed ice classification algorithm. Investigation of MY ice and ice shelf areas revealed that the breakup of MY ice induced a breakup of an ice shelf. A comparison of the FY ice and MY ice areas showed the replacement of these ice types. The proposed ice classification algorithm can detect ice breakup events as quantitative changes in the distribution and ice type. In future work, we plan to classify sea ice in other sea ice areas, applying the proposed algorithm throughout the Antarctic region.https://www.mdpi.com/2072-4292/12/19/3179sea iceice sheetice classificationsatellite-based remote-sensingAntarctic |
| spellingShingle | Seita Hoshino Kazutaka Tateyama Koh Izumiyama Classification of Ice in Lützow-Holm Bay, East Antarctica, Using Data from ASCAT and AMSR2 Remote Sensing sea ice ice sheet ice classification satellite-based remote-sensing Antarctic |
| title | Classification of Ice in Lützow-Holm Bay, East Antarctica, Using Data from ASCAT and AMSR2 |
| title_full | Classification of Ice in Lützow-Holm Bay, East Antarctica, Using Data from ASCAT and AMSR2 |
| title_fullStr | Classification of Ice in Lützow-Holm Bay, East Antarctica, Using Data from ASCAT and AMSR2 |
| title_full_unstemmed | Classification of Ice in Lützow-Holm Bay, East Antarctica, Using Data from ASCAT and AMSR2 |
| title_short | Classification of Ice in Lützow-Holm Bay, East Antarctica, Using Data from ASCAT and AMSR2 |
| title_sort | classification of ice in lutzow holm bay east antarctica using data from ascat and amsr2 |
| topic | sea ice ice sheet ice classification satellite-based remote-sensing Antarctic |
| url | https://www.mdpi.com/2072-4292/12/19/3179 |
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