Landsat ETM+based water information extracting method for inland lakes
Landsat ETM+based water information extracting method for inland lakes
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发表时间：
2013
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通讯作者：
Yusufujiang Rusul
中科院分区：
文献类型：
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作者：
Yusufujiang Rusul
【目的】提出一种新的水体信息提取方法，用于准确提取内陆湖泊的水体信息。【方法】基于Landsat ETM+数据和湖岸线GPS数据对我国最大的内陆淡水湖博斯腾湖及周边地区进行调查，提出多波段数字数比较（CBDN）方法，并与单波段阈值法、NDWI、MNDWI、谱关系进行比较。 【结果】CBDN方法提取水体信息准确，提取的水体与非水体边界与GPS数据非常接近，总精度达到99.29%。【结论】CBDN是内陆湖泊水体信息提取的最佳方法，CBDN简单方便，可广泛应用。
【Objective】This study proposed a new water body information extracting method for accurate extraction of water information from inland lakes.【Method】The largest inland freshwater lake-Bosten Lake and surrounding area in China was investigated based on Landsat ETM+data and lake shoreline GPS data.Comparison of multiple bands digital numbers(CBDN)method was proposed and compared with single band threshold method,NDWI,MNDWI,spectral relationship method and NDWI3.【Result】CBDN method accurately extracted water body information and the extracted boundaries between water body and non-water body were very close to GPS data with a total precision of 99.29%.【Conclusion】CBDN was the best method to extract water body information for inland lakes.CBDN is simple and convenient and it can be widely used.