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- W647536036 abstract "利用FY-1C连续3年的CAVHRR资料，以敦煌辐射校正场为分析区，分析了CAVHRR可见光、近红外通道的通道衰减特征，开展了归一化植被指数（NDVI）衰减订正方法研究及衰减订正试验。分析结果表明，FY-1C可见光通道1的衰减使FY-1C全球及区域NDVI的分布特征出现不合理。以敦煌辐射校正场为参考目标，借助敦煌目标区通道反射率长时间变化特征分析，可以建立NDVI的时变订正模型，有效订正通道衰减引起的NDVI的不合理性。利用敦煌NDVI值稳定不变的特性得到的FY-1C扫描辐射计通道1更新定标系数，与2000年9月中国辐射校正场外定标试验结果一致。研究结果有助于提高FY-1C可见光、近红外通道遥感资料在环境遥感监测方面的定量应用精度。" @default.
- W647536036 created "2016-06-24" @default.
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- W647536036 date "2003-10-31" @default.
- W647536036 modified "2023-09-24" @default.
- W647536036 title "FY-1C CAVHRR归一化植被指数（NDVI）衰减订正方法研究" @default.
- W647536036 hasPublicationYear "2003" @default.
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