Musk_Ox_census_area_Snow_cover

The snow cover is computed for the parts of the musk ox census area that is visible from the slope of Zackenberg where the automatic cameras are placed. Please find link to the shapefile for the region below. Photos from three different camera positions are orthorectified and mosaicked together and the snow cover is computed based on these images. The dataset starts in 2008, but 2009 is missing, because there weren't enough cloudfree days during the snow melting period. The images are captured every day at 13:20, which is solar noon in the Zackenberg valley.本数据集针对麝牛普查区内可被自动相机布设处的Zackenberg山坡观测到的区域计算积雪覆盖范围。请见下文提供的该区域形状文件（shapefile）链接。 来自三个不同相机点位的影像已完成正射校正与拼接镶嵌，积雪覆盖范围即基于这些影像计算得出。本数据集的时间跨度始于2008年，但2009年数据缺失，原因是融雪期内无云天数不足。 影像每日于13:20拍摄，此时为Zackenberg山谷的太阳正午时刻。