Snow-Cloud Validation Masks for Multispectral Satellite Data.

Geotiffs of manually validated snow, cloud, & clear-sky snow free pixels for 13 Landsat 8 images. These acquisitions are of mid-latitude mountainous regions that contain both snow and cloud cover. Four spectral libraries of snow and cloud are also provided. These are the snow and cloud spectra extracted from both these 13 scenes and the 13 L8 SPARCS Cloud Validation Masks that contained both snow and cloud. 1&2.) Snow and cloud top-of-atmosphere reflectance for the eight Landsat 8 OLI 30 meter optical bands, aggregated from the 26 scenes. 3&4.) The top-of-atmosphere reflectance for the eight Landsat 8 OLI 30 meter optical bands of all snow misidentified as cloud and cloud misidentified as snow by CFMASK, the cloud mask that ships in the BQA file of Landsat 8 Collection 1.本数据集包含13景Landsat 8影像的经人工验证的积雪、云层及晴空无雪像元的GeoTIFF（地理标记图像文件格式）数据，所涉影像覆盖同时存在积雪与云层覆盖的中纬度山区。此外还提供4套积雪与云层光谱库，其光谱数据均从上述13景影像，以及同时包含积雪与云层的13景L8 SPARCS云验证掩膜（SPARCS Cloud Validation Masks）中提取得到。 1与2类数据：从26景影像中聚合得到的、对应8个Landsat 8 OLI（Operational Land Imager）30米光学波段的积雪与云层大气层顶反射率数据。 3与4类数据：针对Landsat 8 Collection 1数据集BQA（波段质量评估）文件中附带的云掩膜产品CFMASK，所有被其误识别为云层的积雪、以及被误识别为积雪的云层所对应的8个Landsat 8 OLI 30米光学波段的大气层顶反射率数据。