黑河综合遥感联合试验：冰沟流域加密观测区积雪光谱反射率多角度观测数据集（2008年3月23日）

此研究包含三部分观测内容。
1）为了观测积雪的二向反射特性2008年3月23日在冰沟流域加密观测区开展多角度积雪光谱观测（采用北京师范大学自制研发的多角度观测架测量），观测时间为北京时间（BJT）2008年3月23日10:50-13:50；
2）为了研究反照率随太阳高度角变化特征，同步进行了积雪反照率观测（总辐射表），观测时间为北京时间（BJT）2008年3月23日10:00-14:36；
3）积雪表面光谱特征观测（由新疆气象局ASD光谱仪测量）。
以上测量均在冰沟小流域水文断面旁的一块较为平坦的空地测量，该数据集包括原始数据和预处理数据2个文件夹。

This research comprises three sets of observational measurements. 1) To characterize the bidirectional reflectance of snow cover, multi-angle snow spectral observations were conducted in the intensive observation area of the Binggou Watershed on March 23, 2008, using a self-developed multi-angle observation frame independently designed and manufactured by Beijing Normal University. The observation period was 10:50–13:50 Beijing Time (BJT) on March 23, 2008. 2) To investigate the variation characteristics of snow albedo with solar altitude angle, simultaneous snow albedo observations were carried out using a total radiometer, with the observation duration spanning 10:00–14:36 Beijing Time (BJT) on March 23, 2008. 3) Observations of snow surface spectral characteristics were performed using an ASD spectrometer supplied by the Xinjiang Meteorological Bureau. All aforementioned measurements were taken on a relatively flat open area adjacent to the hydrological section of the small Binggou Watershed. This dataset contains two folders: raw data and preprocessed data.