{"id":"52db7c1a-046f-486e-8a2f-3128667f9f39","title":"黑河综合遥感联合试验：扁都口加密观测区Envisat ASAR地面同步观测数据集（2008年3月14日）","title_en":"WATER: Dataset of ground truth measurements synchronizing with Envisat ASAR in the Biandukou foci experimental area (Mar. 14, 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":"","description":"2008年3月14日在扁都口加密观测区开展了Envisat ASAR地面同步测量，测量内容主要包括地表温度、土壤剖面含水量（0-1cm、1-3cm、3-5cm、5-10cm、10-20cm，部分样方只测量了5cm）、表层土壤冻结深度。\nEnvisat ASAR数据为AP模式，VV/VH极化组合方式，过境时间约为23:21BJT。\n测量时间为2008年3月14日23:30-2008年3月15日1:00，测量样方包括扁都口C1样地、扁都口W2样地和扁都口B2样地；样方类型包括麦茬地、深翻地、油菜茬地。\n1）土壤温度采用手持式红外温度计，采用近距离测量模式，分别测量了地表红外辐射温度和土壤表层的物理温度。同时记录了测量点的地表类型。数据文件可以用Microsoft Office软件打开。\n2）土壤含水量：取0-1cm、1-3cm、3-5cm、5-10cm、10-20cm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。\n3）土壤冻结深度的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。数据可以用Microsoft Office软件打开。\n本数据集包括4个文件夹，分别为：ASAR数据、扁都口C1样地测量数据、扁都口W2样地测量数据、扁都口B2样地测量数据。","doi":"10.3972/water973.0026.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":164.1,"share_policy":"a","ts_created":"2013-10-09T19:52:45+08:00","doi_type":null,"ts_updated":"2021-04-18T13:02:58.183643+08:00","time_description":"","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, 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Envisat ASAR地面同步观测数据集（2008年3月14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/water973.0026.db [Zhang Lixin, 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 measurements synchronizing with Envisat ASAR in the Biandukou foci experimental area on Mar. 14, 2008. Beijing Normal University; Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences; Institute of Remote Sensing Applications, Chinese Academy of Sciences. 2008. doi:10.3972/water973.0026.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":"52db7c1a-046f-486e-8a2f-3128667f9f39","three_pole":null,"third_pole":null},"username":"盖春梅","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":11964}