中国北部地区卫星积雪产品数据集检验
Validation of AVHRR, IMS and MODIS Snow Cover Products in North of China
查看参考文献17篇
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文摘
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同其他卫星相比,NOAA卫星搭载的AVHRR积雪产品,具有长达10 a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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其他语种文摘
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Comparing with other satellite sensors, AVHRR has the capability to analyze more than 10 years of medium-resolution satellite imagery on a daily basis. AVHRR thereby holds a great potential to detect, map and quantify long-term environmental changes. However, different satellites use different retrieval algorithms, wavelength bandwidths and atmospheric validations. So it is important to compare different snow cover products retrieved by different satellites. Here, we describe and extensively validate the snow cover products of the historical 0.05°×0.05° AVHRR data. The spatial and seasonal validation includes a comparison with IMS and MOD10A1. It is found that the AVHRR snow products are in good accordance with the MODIS snow products. The influence of acquisition geometry and the sensor-to-sensor consistency will be discussed in future. |
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来源
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地球信息科学学报
,2015,17(11):1341-1347 【核心库】
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DOI
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10.3724/SP.J.1047.2015.01341
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关键词
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积雪产品
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MODIS
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AVHRR
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IMS
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一致性检验
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地址
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国家卫星气象中心, 中国气象局中国遥感卫星辐射测量和定标重点开放实验室, 北京, 100081
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1560-8999 |
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学科
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大气科学(气象学) |
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基金
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新疆维吾尔自治区科技支疆项目
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公益性行业（气象）科研专项
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公益性行业（气象）科研专项
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文献收藏号
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CSCD:5555452
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