{"id":"d83a191a-f272-4c0e-97d0-c2d77bd431d9","title":"黑河生态水文遥感试验：黑河流域上游PLMR地面同步观测数据集（2012年8月1日）","title_en":"HiWATER: Dataset of ground truth measurements synchronizing with airborne PLMR mission in the upper reaches of the Heihe River Basin on August 1, 2012","serial":"HiWATER","user_limit":"本数据由“黑河生态水文遥感试验（HiWATER）”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":"2012年8月1日在黑河上游加密观测区东支、阿柔和西支，开展了样带、样方机载PLMR飞行地面同步观测。PLMR（Polarimetric L-band Multibeam Radiometer）是双极化（H/V）的L波段微波辐射计，中心频率1.413 GHz，带宽24 MHz，分辨率1 km （相对航高3 km），有6个beam同时观测，入射角为±7º，±21.5º，±38.5º，灵敏度<1K。飞行主要覆盖中游人工绿洲生态水文试验区。本地面同步数据集可为发展和验证被动微波遥感反演土壤水分算法提供基本地面数据集。\n样方及采样策略：\n观测区涉及范围较大，因此在八宝河东支和西支均采用一条样带观测，观测点间隔50 m，采样中考虑到距离过长，为保证与飞行观测尽量同步，每隔一定距离开展观测。在阿柔草场设置2个样方，分别为1.5 km×0.6 km 和0.85 km×0.6 km，在这两个样方上采样点南北间隔100 m，东西间隔50 m。\n使用4台Hydraprobe Data Acquisition System （HDAS，参考文献2）和3台POGO便携式土壤传感器同时测量。\n测量内容： \n观测获得土壤温度、土壤水分（体积含水量）、损耗正切、土壤电导率、土壤复介电实部及虚部。植被参数观测选择在一些具有代表性的土壤水分采样点开展，完成了覆盖度、株高和生物量（植被含水量）的测量。\n数据：\n本数据集包括土壤水分观测和植被观测两部分，前者保存数据格式为矢量文件，空间位置即为各采样点位置（WGS84+UTM 47N），土壤水分等测量信息记录在属性文件中；植被采样信息记录在EXCEL表格中。","doi":"10.3972/hiwater.050.2013.db","projection":"4326","language":"zh","share_type":"offline","east":101.15,"west":98.9,"south":37.833,"north":38.851,"scale":null,"crs":null,"filesize":1.4,"share_policy":"b","ts_created":"2013-06-11T19:13:39+08:00","doi_type":null,"ts_updated":"2021-04-19T22:07:34.136471+08:00","time_description":"","datas_group":0,"time_description_en":null,"data_format":"文本","project":[10,11,15],"specials":["ee3dfdf5-2e9f-4b61-a301-4fb49e30e3c2","6f45f287-f49c-49aa-a5b7-e88e4132b9a8","8ece9045-32dc-49df-a50a-53afad3c4162","4e7b97a6-ee1f-4b51-83e5-04a100993973"],"cite":"王树果, 马春锋, 方苗, 李大治, 马建威, 周芳成, 徐凤英, 家淑珍, 贾远信, 黄永生, 闻熠, 张莹, 王宏伟. 黑河生态水文遥感试验：黑河流域上游PLMR地面同步观测数据集（2012年8月1日）. 中国科学院寒区旱区环境与工程研究所; 中国科学院大学; 西北师范大学. 2012. doi:10.3972/hiwater.050.2013.db [Wang Shuguo, Ma Chunfeng, Fang Miao, Li Dazhi, Ma Jianwei, Zhou Fangcheng, Xu Fengying, Jia Shuzhen, Jia Yuanxin, Huang Yongsheng, Wen Yi, Zhang Ying, Wang Hongwei. HiWATER：Dataset of ground truth measurements synchronizing with airborne PLMR mission in the upper reaches of the Heihe River Basin on August 1, 2012. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences; University of Chinese Academy of Sciences; Northwest Normal University. 2012. doi:10.3972/hiwater.050.2013.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":[39,43],"subtopics":{"metadata":"d83a191a-f272-4c0e-97d0-c2d77bd431d9","three_pole":null,"third_pole":null},"username":"胡晓利","review_time":null,"protected_duration":6,"protected_describe":null,"is_important":false,"hit_count":10080}