normalized differential vegetation index中文什么意思

normalized difference vegetation index: 標(biāo)準(zhǔn)化植被差異指數(shù); 歸一化差異植被指數(shù)
vegetation index: 植被指數(shù)
normalized index of fit: 常模似合指數(shù)
agricultural vegetation index: 農(nóng)業(yè)植被指數(shù)
crop vegetation index: 罪植被指數(shù)

下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯

it is discovered that the correlation between msavi ( modified soil adjusted vegetation index ) and vegetation coverage is higher than that between ndvi ( normalized differential vegetation index ) and grassland coverage when the land cover is low . so msavi can be used as the main index of grassland desertification degree . in order to evaluate the precision of the result, different methods such as supervised classification, unsupervised classification and visual interpretation on image are tried respectively
本文將其作為草地沙化的分級指標(biāo)，直接通過計(jì)算分級，建立msavi等級與草地沙化程度的對應(yīng)關(guān)系，確定草地沙化的程度，然后將msavl分類結(jié)果分別與目視解譯、監(jiān)督、非監(jiān)督分類的結(jié)果進(jìn)行了精度比較，其精度高于監(jiān)督與非監(jiān)督分類，與典型區(qū)現(xiàn)場繪制和目視解譯結(jié)果的誤差為5.9，能滿足草地沙化監(jiān)測實(shí)際應(yīng)用要求。

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