期刊
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
卷 47, 期 7, 页码 1980-1989出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TGRS.2009.2013632
关键词
Beaufort Sea; classification; data fusion; ice mapping; multisensor; passive microwave; principal component (PC) analysis (PCA); scatterometer
类别
资金
- Natural Sciences and Engineering Research Council of Canada
- Canadian Federal Government's International Polar Year
The benefits of augmenting Advanced Microwave Scanning Radiometer for the Earth Observing System (AMSR-E) image data with Quick Scatterometer (QuikSCAT) image data for supervised sea ice classification in the Western Arctic region are investigated. Experiments compared the performance of a maximum likelihood classifier when used with the AMSR-E-only data set against using the combined data. The preferred number of bands to use for classification was examined, as well as whether principal component analysis (PCA) can be used to reduce the dimensionality of the data. The reliability of training data over time was also investigated. Adding QuikSCAT often improves classifier accuracy in a statistically significant manner and never decreases it significantly when a sufficient number of bands are used. Combining these data sets is beneficial for sea ice mapping. Using all available bands is recommended, data fusion with PCA does not offer any benefit for these data, and training data from a specific date remains reliable within 30 days.
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