| 海洋二号微波散射计极地海冰识别算法研究 |
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| 引用本文： | 邹巨洪,曾韬,郭茂华,崔松雪.海洋二号微波散射计极地海冰识别算法研究[J].海洋学报(英文版),2016,35(9):74-79. |
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| 作者姓名： | 邹巨洪 曾韬 郭茂华 崔松雪 |
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| 作者单位： | 国家卫星海洋应用中心, 北京, 100081,国家卫星海洋应用中心, 北京, 100081,国家卫星海洋应用中心, 北京, 100081,国家卫星海洋应用中心, 北京, 100081 |
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| 摘 要： | An Antarctic sea ice identification algorithm on the HY-2A scatterometer(HSCAT) employs backscattering coefficient(σ0) and active polarization ratio(APR) for a preliminary sea ice identification.Then standard deviation(STD) filtering and space filtering are carried out.Finally,it is used to identify sea ice.A process uses a σ0,STD threshold and an APR as sea ice indicators.The sea ice identification results are verified using the sea ice distribution data of the ASMR2 released by the National Snow and Ice Data Center as a reference.The results show very good consistence of sea ice development trends,seasonal changes,area distribution,and sea ice edge distribution of the sea ice identification results obtained by this algorithm relative to the ASMR2 sea ice results.The accuracy of a sea ice coverage is 90.8% versus the ASMR2 sea ice results.This indicates that this algorithm is reliable.
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| 关 键 词： | 海洋二号 微波散射计 海冰识别 极地 |
| 收稿时间： | 2015/4/13 0:00:00 |
| 修稿时间： | 8/5/2015 12:00:00 AM |
The study on an Antarctic sea ice identification algorithm of the HY-2A microwave scatterometer data |
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| ZOU Juhong,ZENG Tao,GUO Maohua and CUI Songxue.The study on an Antarctic sea ice identification algorithm of the HY-2A microwave scatterometer data[J].Acta Oceanologica Sinica,2016,35(9):74-79. |
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| Authors: | ZOU Juhong ZENG Tao GUO Maohua and CUI Songxue |
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| Institution: | National Satellite Ocean Application Service, State Oceanic Administration, Beijing 100081, China |
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| Abstract: | An Antarctic sea ice identification algorithm on the HY-2A scatterometer (HSCAT) employs backscattering coefficient (σ0) and active polarization ratio (APR) for a preliminary sea ice identification. Then standard deviation (STD) filtering and space filtering are carried out. Finally, it is used to identify sea ice. A process uses a σ0, STD threshold and an APR as sea ice indicators. The sea ice identification results are verified using the sea ice distribution data of the ASMR2 released by the National Snow and Ice Data Center as a reference. The results show very good consistence of sea ice development trends, seasonal changes, area distribution, and sea ice edge distribution of the sea ice identification results obtained by this algorithm relative to the ASMR2 sea ice results. The accuracy of a sea ice coverage is 90.8% versus the ASMR2 sea ice results. This indicates that this algorithm is reliable. |
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| Keywords: | HY-2A scatterometer sea ice identification Antarctic |
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