{"id":"16d578bf-58c5-410b-a3e8-4abb7856418e","title":"黑河综合遥感联合试验：扁都口加密观测区L&K波段机载微波辐射计地面同步观测数据集（2008年5月25日）","title_en":"WATER: Dataset of ground truth measurement synchronizing with the airborne microwave radiometers (L&K bands) mission in the Biandukou foci experimental area on May 25, 2008","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":null,"description":"2008年5月25日，在扁都口加密观测区开展了针对机载微波辐射计（L&K波段）的地面同步观测试验。测量内容主要为地表土壤温度、地表粗糙度和探地雷达。\n1. 土壤温度：扁都口样带1、扁都口样带2、扁都口样带3、扁都口样带4、扁都口样带5、扁都口样带6、扁都口样带7测量了土壤温度。\n2. 粗糙度测量：采用粗糙度板和照相机测量。处理结果：数据中文件名中含有“result”字段的文件为粗糙度的处理结果，第一列为表面高度均方根高度，其实只有一个值，所以该列数据都相同；第二列为距离，第三列为相关函数值。当相关函数值为1/e时的距离值为相关长度；单位为：cm。由于地表粗糙度在一定时期内变化不大，所以在该天前后的样方内的地表粗糙度都可以采用今天的数据。存在问题：从数据看，由于测量人员经验不足，某些照片效果不好。通过人工读取照片上的地表起伏剖面，得到1cm间隔的地表起伏高度值，写入记事本文件。然后通过程序计算地表的粗糙度中的均方根高度和相关长度。\n本数据可为发展和验证主动微波遥感反演土壤水分及冻融状态算法提供基本的地面数据集。\n3. 探地雷达 同时测量探地雷达和TDR数据。\n本数据集包括：\n（1）粗糙度照片和预处理数据\n（2）土壤温度同步数据\n（3）样方和样带坐标点数据\n（4）探地雷达数据\n（5）微波辐射计数据\n数据都处理为Excel格式和记事本文件存储。","doi":"10.3972/water973.0040.db","projection":"4326","language":"zh","share_type":"offline","east":101.036,"west":100.881,"south":38.192,"north":38.312,"scale":null,"crs":null,"filesize":924.1,"share_policy":"b","ts_created":"2013-10-19T06:39:26+08:00","doi_type":null,"ts_updated":"2021-04-19T22:05:20.369324+08:00","time_description":null,"datas_group":0,"time_description_en":null,"data_format":"","project":[10,11,15],"specials":["2ee7e876-6f20-43a7-9c6c-979840a33ef2","a287b225-86f7-4583-9e92-c05b6d3036bc","6740cd00-6d20-4855-a39b-863af216b0a2","4e7b97a6-ee1f-4b51-83e5-04a100993973"],"cite":"张立新, 车涛, 白云洁, 曹永攀, 柴源, 常胜, 杜自强, 郝晓华, 黄波, 李笑宇, 李世华, 罗震, Patrick Klenk, 钱永刚, 孙小青, 王之夏, 吴月茹, 王锦地, 姚冬萍, 赵少杰, 郑越, 赵英时. 黑河综合遥感联合试验：扁都口加密观测区L&K波段机载微波辐射计地面同步观测数据集（2008年5月25日）. 北京师范大学; 中国科学院寒区旱区环境与工程研究所; 中国科学院研究生院; 华南农业大学; 海德堡大学; 电子科技大学. 2008. doi:10.3972/water973.0040.db [Zhang Lixin, Che Tao, Bai Yunjie, Cao Yongpan, Chai Yuan, Chang Sheng, Du Ziqiang, Hao Xiaohua, Huang Bo, Li Xiaoyu, Li Shihua, Luo Zhen, Patrick Klenk, Qian Yonggang, Sun Xiaoqing, Wang Zhixia, Wu Yueru, Wang Jindi, Yao Dongping, Zhao Shaojie, Zheng Yue, Zhao Yingshi. WATER: Dataset of ground truth measurement synchronizing with the airborne microwave radiometers (L&K bands) mission in the Biandukou foci experimental area on May 25, 2008. Beijing Normal University; Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Science; Graduate University of Chinese Academy of Sciences; South China Agricultural University; Heidelberg University; University of Electronic Science and Technology of China. 2008. doi:10.3972/water973.0040.db]","review_status":5,"review_invite":[],"review_editor":null,"data_sources":null,"temporal_resolution":null,"spatial_resolution":null,"license":null,"fund":[35,36],"subtopics":{"metadata":"16d578bf-58c5-410b-a3e8-4abb7856418e","three_pole":null,"third_pole":null},"username":"车涛","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":12801}