{"id":"23eb5d21-9653-4d0c-8bd8-cc2d994871a6","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3月21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 Mar. 21, 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3月21日运-12飞机搭载L&K波段微波辐射计进行了航空飞行试验，飞行时间为8:25至11:15BJT。地面同步观测主要参数包括地表辐射温度、地表物理温度、土壤剖面0-1cm、1-3cm、3-5cm的重量含水量（烘干称重法），表层土壤冻融状况（以冻结深度表示），积雪深度。\n由于晚上扁都口地区降雪，所以地表覆盖大概有10cm左右的新雪。随着时间接近中午，地表积雪有融化的迹象，由于飞行区域内海拔不同，所以积雪融化的时间也不同。但是由于事先没有准备雪分析仪，所以并没有积雪相关参数的测量。\n1）微波辐射计观测角度为垂直地表观测，所以，辐射计数据没有极化之分。\n2）地表辐射温度和物理温度测量采用手持式红外温度计，测量时采用近距测量模式。地表物理温度采用手持式红外温度计附带的热电偶温度计（某些样点同时使用了针式热敏电阻温度计）。\n3）冻融深度测量方法是通过用筷子插入土壤感觉其硬度或者将土壤表层冻结层直接挖出测量冻结层厚度，来判断冻融深度。直尺直接测量，当土壤硬度较大并且有冰晶时，认为土壤冻结；反之，则认为土壤未冻。\n4）积雪深度是利用直尺直接测量。\n5）土壤水分：取0-1cm、1-3cm、3-5cm土样，放入自封袋，然后用微波炉烘干，计算其土壤重量含水量。土壤的体积含水量可以通过容重数据计算。数据可以用Microsoft Office软件打开。\n本数据集包括各地面同步采样点的地面观测数据和样点坐标数据。","doi":"10.3972/water973.0030.db","projection":"4326","language":"zh","share_type":"online","east":101.036,"west":100.881,"south":38.192,"north":38.312,"scale":null,"crs":null,"filesize":17.1,"share_policy":"a","ts_created":"2013-10-12T11:08:01+08:00","doi_type":null,"ts_updated":"2021-04-19T22:23:43.997142+08:00","time_description":null,"datas_group":3,"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, 常胜, 房倩, 梁星涛, 刘志刚, 刘晨州, 潘金梅, 彭丹青, 瞿瑛, 任华忠, 殷小军, 张勇攀, 张志玉, 赵少杰, 赵天杰, 郑越, 周纪, 张志玉. 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3月21日）. 北京师范大学; 中国科学院寒区旱区环境与工程研究所; 中国科学院遥感应用研究所. 2008. doi:10.3972/water973.0030.db [Zhang Lixin, Che Tao, Chang Sheng, Fang Qian, Liang Xingtao, Liu Zhigang, Liu Chenzhou, Pan Jinmei, Peng Danqing, Qu Ying, Ren Huazhong, Yin Xiaojun, Zhang Yongpan, Zhang Zhiyu, Zhao Shaojie, Zhao Tianjie, Zheng Yue, Zhou Ji, Zhang Zhiyu. WATER: Dataset of ground truth measurement synchronizing with the airborne microwave radiometers (L&K bands) mission in the Biandukou foci experimental area on Mar. 21, 2008. Beijing Normal University; Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Science; Institute of Remote Sensing Applications, Chinese Academy of Sciences. 2008. doi:10.3972/water973.0030.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":"23eb5d21-9653-4d0c-8bd8-cc2d994871a6","three_pole":null,"third_pole":null},"username":"盖春梅","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":13293}