泰安市区不透水面覆盖度遥感估算研究Remote sensing estimation of impervious surface coverage in urban area of Taian city
姜增琛,张继贤,梁勇,林祥国
摘要(Abstract):
区域不透水面覆盖度是该区域城镇化程度、生态环境状况的重要指示因子。针对传统线性混合像元分解丰度图经常出现负值或者大于1的情况,采用完全约束最小二乘混合像元分解方法,利用泰安市市区Landsat8 OLI遥感影像提取了其不透水面分布状况,运用高分辨率遥感影像随机采样进行了精度检验,并对该区域不透水面空间特征进行了分析。结果表明:该文方法对泰安市市区不透水面分布提取的精度较高;植被、水体、高和低反照率不透水面4种光谱端元的线性组合,可以较好地模拟OLI影像的波谱特征;高、低反照率不透水面两种光谱端元可以很好地表达泰安市市区不透水面信息。
关键词(KeyWords): 不透水面;线性光谱混合分解;端元;遥感
基金项目(Foundation): 中央级公益性科研院所基本科研业务费项目(777161103)
作者(Author): 姜增琛,张继贤,梁勇,林祥国
DOI: 10.16251/j.cnki.1009-2307.2017.05.013
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