VIIRS/NPP Sea Ice Cover Daily L3 Global 375m EASE-Grid 2.0 Day, Version 2

This data set reports sea ice cover/extent derived from radiance data acquired by the Visible Infrared Imager Radiometer Suite (VIIRS). Following the approach used by MODIS, the algorithm converts VIIRS calibrated radiances into brightness temperature and computes sea ice cover using Normalized Difference Snow Index (NDSI). VIIRS flies on board the Suomi National Polar-orbiting Partnership (NPP) satellite.本数据集报告了由可见光红外成像辐射仪套件（Visible Infrared Imager Radiometer Suite, VIIRS）获取的辐射数据反演得到的海冰覆盖度与覆盖范围。参考中分辨率成像光谱仪（MODIS）所采用的方法，本算法将VIIRS经定标的辐射数据转换为亮温，并通过归一化积雪指数（Normalized Difference Snow Index, NDSI）计算海冰覆盖范围。 VIIRS搭载于苏奥米国家极轨伙伴卫星（Suomi National Polar-orbiting Partnership, NPP）之上。