Spring-time fractional snow cover mapping in Northern Hemisphere with NPP Suomi/VIIRS within ESA DUE GlobSnow-2 project
Spring-time fractional snow cover mapping in Northern Hemisphere with NPP Suomi/VIIRS within ESA DUE GlobSnow-2 project
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DOI：
10.1109/igarss.2014.6947363
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发表时间：
2014-07
期刊：
影响因子：
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通讯作者：
S. Metsämäki;Mwaba Hiltunen;K. Luojus;J. Pulliainen
中科院分区：
文献类型：
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作者：
S. Metsämäki;Mwaba Hiltunen;K. Luojus;J. Pulliainen
介绍了基于NPP SOOMI/VIIRS数据的北半球积雪分数图。在欧空局的DUE项目GlobSnow中，基于VIIRS的积雪测绘依赖于SCAmod方法，该方法特别设计用于提供准确的FSC估计，也适用于北方森林。2013年的三个8天复合材料与MOD10C2产品进行了比较，以了解它们在半球尺度上可能存在的差异。结果表明，基于GlobSnow VIIRS的雪图总体上具有比MOD10C2产品更宽的过渡带(积雪分数)的特征。此外，基于GlobSnow VIIRS的产品对森林地区的积雪分数估计值通常高于MOD10C2，这表明SCAmod方法非常有能力检测森林中的积雪分数。
Northern Hemisphere fractional snow cover (FSC) mapping based on NPP Suomi/VIIRS data is introduced. In ESA DUE-project GlobSnow, VIIRS-based snow mapping relies on SCAmod method particularly designed to provide accurate FSC estimates also in boreal forests. Three 8-day composites from year 2013 are compared with MOD10C2 products in order to catch their possible differences in the hemispheric scale. The results indicate that in general, GlobSnow VIIRS-based snow maps are characterized by the transitional (fractional snow) zone wider than that provided by MOD10C2 products. Moreover, fractional snow cover estimates for forested areas are generally higher for GlobSnow VIIRS-based products than for MOD10C2, suggesting that SCAmod method is very capable of detecting fractional snow in forests.