{"id":"5d68328b-9090-42cb-b96d-10828866e94e","title":"黑河综合遥感联合试验：预试验期峨堡加密观测区地表粗糙度数据集","title_en":"WATER: Dataset of surface roughness measurements in the E’pu foci experimental area during the pre-observation period","serial":"黑河综合遥感联合试验","user_limit":"本数据由“黑河综合遥感联合试验”产生，用户在使用数据时请在正文中明确声明数据的来源，并在参考文献部分引用本元数据提供的引用方式。","instructions":"","description":"本数据包括上游寒区水文试验区峨堡加密观测区预试验时峨堡样方1和峨堡样方2中各采样点的粗糙度测量原始照片，及表面高度标准离差（cm）和相关长度（cm）的计算结果。每个采样点均按照南北向和东西向分别测量1次，粗糙度板长110cm，测量点间距1cm。峨堡各样方均为3Grid×3Grid，每个Grid均为30m×30m。\n粗糙度数据通过数码照相采集，然后在ArcView软件下，对照片中每根辐条的顶端以及板子的四角做手工数字化采样，获得其图像坐标值，经过几何校正后，计算得到每根辐条的高度，然后按公式计算表面高度标准离差和表面相关长度。其计算公式见《微波遥感》第二卷234-236页。\n粗糙度数据中首先是样点名称，之后数据正文包括4列（编号、文件名、标准离差、相关长度）。每一个文件名，即txt文件对应一张采样照片，标准离差（cm）与相关长度（cm）即代表了粗糙度。之后是每张照片中101根辐条的长度，属于中间结果，用以检查校正。","doi":"10.3972/water973.0187.db","projection":"4326","language":"zh","share_type":"online","east":100.76,"west":100.703,"south":37.984,"north":38.014,"scale":null,"crs":null,"filesize":57.0,"share_policy":"a","ts_created":"2013-10-13T14:11:55+08:00","doi_type":null,"ts_updated":"2021-04-19T21:39:57.850437+08:00","time_description":"","datas_group":3,"time_description_en":null,"data_format":"EXCEL","project":[10,11,15],"specials":["2ee7e876-6f20-43a7-9c6c-979840a33ef2","39f7f638-2b4f-4e9a-a6d5-88190daa4546","6740cd00-6d20-4855-a39b-863af216b0a2","4e7b97a6-ee1f-4b51-83e5-04a100993973"],"cite":"晋锐, 车涛, 曹永攀, 钞振华, 秦春, 吴月茹. 黑河综合遥感联合试验：预试验期峨堡加密观测区地表粗糙度数据集. 中国科学院寒区旱区环境与工程研究所. 2008. doi:10.3972/water973.0187.db [Jin Rui, Che Tao, Cao Yongpan, Chao Zhenhua, Qin Chun, Wu Yueru. WATER: Dataset of surface roughness measurements in the E’pu  foci experimental area during the pre-observation period. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences. 2008. doi:10.3972/water973.0187.db]","review_status":5,"review_invite":[],"review_editor":null,"data_sources":null,"temporal_resolution":null,"spatial_resolution":null,"license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[35,36],"subtopics":{"metadata":"5d68328b-9090-42cb-b96d-10828866e94e","three_pole":null,"third_pole":null},"username":"盖春梅","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":11820}