{"id":"a3e77ea2-d770-49bd-b01b-6273b8c562f8","title":"黑河综合遥感联合试验：阿柔加密观测区机载WiDAS地面同步观测数据集（2008年5月31日）","title_en":"WATER: Dataset of ground truth measurements synchronizing with the airborne WiDAS mission in the A'rou foci experimental area on May 31, 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31日在阿柔样方1和阿柔样方3进行了机载红外广角双模式成像仪WiDAS（Wide-angle Infrared Dual-mode line/area Array Scanner）航空飞行的地面同步观测。WiDAS由4个CCD相机、1个中红外热像仪（AGEMA 550）和1个热红外热像仪（S60）组成， 能同时获取可见光/近红外（CCD）波段5个角度、中红外波段（MIR）7个角度和热红外波段（TIR ）7个角度的数据。地面同步观测变量主要包括地表辐射温度与土壤水分。\n地表辐射温度采用固定自记点温计连续测量，采样间隔为0.05s，仪器比辐射率设定为1.0。数据以文本文件存储（.dat格式），每个文本文件中的前7行为说明性的头文件，包括，数据采集日期、记录的起始时间、记录时间间隔等.另外，包括Time、TObj、Tint、TBox、Tact等5列数据，其中Time：从开始记录起的时间，换算成实际时间的话需要该值加起始时间；TObj：目标温度；TInt：探头内部温度；TBox：腔体温度；Tact：根据给定的发射率换算出来的实际温度，由于仪器比辐射率设定为1.0，所以该值和TObj是一样的，需要用户根据实际地物发射率进行修正。 \n利用TDR测量的土壤水分数据，测量深度为0-12cm和0-20cm。在样方内来回采样。数据以Excel格式保存。包括土壤温度，土壤介电常数，土壤电导率等数据。","doi":"10.3972/water973.0016.db","projection":"4326","language":"zh","share_type":"online","east":100.55,"west":100.411,"south":38.015,"north":38.078,"scale":null,"crs":null,"filesize":10.5,"share_policy":"a","ts_created":"2013-10-12T22:41:11+08:00","doi_type":null,"ts_updated":"2021-04-19T17:08:04.097333+08:00","time_description":null,"datas_group":3,"time_description_en":null,"data_format":"EXCEL","project":[10,11,15],"specials":["2ee7e876-6f20-43a7-9c6c-979840a33ef2","70b8f038-a99f-4be4-a349-f82de21a2b6b","6740cd00-6d20-4855-a39b-863af216b0a2","4e7b97a6-ee1f-4b51-83e5-04a100993973"],"cite":"黄春林, 盖春梅, 韩旭军, 晋锐, 李丽, 辛晓洲, 周梦维. 黑河综合遥感联合试验：阿柔加密观测区机载WiDAS地面同步观测数据集（2008年5月31日）. 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/water973.0016.db [Huang Chunlin, Ge Chunmei, Han Xujun, Jin Rui, Li Li, Xin Xiaozhou, Zhou Mengwei. WATER: Dataset of ground truth measurements synchronizing with the airborne WiDAS mission in the A'rou foci experimental area on May 31, 2008. 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/water973.0016.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":"a3e77ea2-d770-49bd-b01b-6273b8c562f8","three_pole":null,"third_pole":null},"username":"盖春梅","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":11595}