Baltic Sea Ice Concentration Estimation Based on C-Band HH-Polarized SAR Data

被引：29
|
作者：
Karvonen, Juha [1 ]
机构：
[1] Finnish Meteorol Inst, FI-00101 Helsinki, Finland
来源：
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING | 2012年 / 5卷 / 06期
关键词：
Autocorrelation; C-band; EM algorithm; ice concentration; mixed distributions; SAR; FEATURES; GABOR; CLASSIFICATION;
D O I：
10.1109/JSTARS.2012.2209199
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Ice concentration measurements are important information e.g., for navigation, ice modeling, and climate change research. Here we present an algorithm for estimating ice concentration from C-band SAR data. The resolution of SAR data is significantly higher than the resolution of the current operational ice concentration products based on radiometer data. Our algorithm is based on segment-wise autocorrelation distributions. The algorithm results were compared with two reference data sets: ice concentrations from the Finnish Ice Service (FIS) ice charts, and ice concentrations from the radiometer-based operational ice concentration algorithm of University of Bremen. The new algorithm gives reasonable ice concentration estimates in a high resolution (500 m) for an arbitrary segmentation.
引用
收藏
页码：1874 / 1884
页数：11
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