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中国北部地区卫星积雪产品数据集检验

DOI: 10.3724/SP.J.1047.2015.01341, PP. 1341-1347

Keywords: 积雪产品,MODIS,AVHRR,IMS,一致性检验

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Abstract:

同其他卫星相比,NOAA卫星搭载的AVHRR积雪产品,具有长达10a的长时间序列数据集,能够应用于长时间、较大区域范围的积雪覆盖变化分析。由于不同卫星使用的反演算法,波谱宽度和大气订正等不完全相同,故需对不同卫星积雪产品数据集进行一致性检验,将卫星积雪产品更好地应用于气候分析研究。本文采用一种新的评估方法,对空间分辨率为0.05o×0.05o的AVHRR积雪产品与IMS和MOD10A1积雪产品,分别在空间和时间变化上进行对比分析,对AVHRR积雪产品数据集进行检验,发现AVHRR与MODIS积雪产品具有较好的一致性。

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