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Open AccessArticle

Polar Sea Ice Monitoring Using HY-2A Scatterometer Measurements

Department of Marine Technology, College of Information Science and Engineering, Ocean University of China, Qingdao 266100, China
Laboratory for Regional Oceanography and Numerical Modeling, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266100, China
National Satellite Ocean Application Service, State Oceanic Administration, Beijing 100081, China
Key Laboratory of Space Ocean Remote Sensing and Application, State Oceanic Administration, Beijing 100081, China
Authors to whom correspondence should be addressed.
Academic Editors: Walt Meier, Mark Tschudi, Xiaofeng Li and Prasad S. Thenkabail
Remote Sens. 2016, 8(8), 688;
Received: 25 April 2016 / Revised: 4 August 2016 / Accepted: 17 August 2016 / Published: 22 August 2016
(This article belongs to the Special Issue Sea Ice Remote Sensing and Analysis)
A sea ice detection algorithm based on Fisher’s linear discriminant analysis is developed to segment sea ice and open water for the Ku-band scatterometer onboard the China’s Hai Yang 2A Satellite (HY-2A/SCAT). Residual classification errors are reduced through image erosion/dilation techniques and sea ice growth/retreat constraint methods. The arctic sea-ice-type classification is estimated via a time-dependent threshold derived from the annual backscatter trends based on previous HY-2A/SCAT derived sea ice extent. The extent and edge of the sea ice obtained in this study is compared with the Special Sensor Microwave Imager/Sounder (SSMIS) sea ice concentration data and the Sentinel-1 SAR imagery for verification, respectively. Meanwhile, the classified sea ice type is compared with a multi-sensor sea ice type product based on data from the Advanced Scatterometer (ASCAT) and SSMIS. Results show that HY-2A/SCAT is powerful in providing sea ice extent and type information, while differences in the sensitivities of active/passive products are found. In addition, HY-2A/SCAT derived sea ice products are also proved to be valuable complements for existing polar sea ice data products. View Full-Text
Keywords: HY-2A/SCAT; sea ice extent; sea ice type; Arctic; Antarctic HY-2A/SCAT; sea ice extent; sea ice type; Arctic; Antarctic
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MDPI and ACS Style

Li, M.; Zhao, C.; Zhao, Y.; Wang, Z.; Shi, L. Polar Sea Ice Monitoring Using HY-2A Scatterometer Measurements. Remote Sens. 2016, 8, 688.

AMA Style

Li M, Zhao C, Zhao Y, Wang Z, Shi L. Polar Sea Ice Monitoring Using HY-2A Scatterometer Measurements. Remote Sensing. 2016; 8(8):688.

Chicago/Turabian Style

Li, Mingming; Zhao, Chaofang; Zhao, Yong; Wang, Zhixiong; Shi, Lijian. 2016. "Polar Sea Ice Monitoring Using HY-2A Scatterometer Measurements" Remote Sens. 8, no. 8: 688.

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