{"id":"a319ca66-f8ff-4734-8565-474bfb30ca86","title":"青藏高原高时间分辨率湖泊水位及水量变化数据集（2000-2017年）","title_en":"High-temporal-resolution water level and storage change data sets for lakes on the Tibetan Plateau during 2000-2017","serial":"","user_limit":"为尊重知识产权、保障数据作者的权益、扩展数据中心的服务、评估数据的应用潜力，请数据使用者在使用数据所产生的研究成果中（包括公开发表的论文、论著、数据产品和未公开发表的研究报告、数据产品等成果），明确注明数据来源和数据作者。对于转载（二次或多次发布）的数据，作者还须注明原始数据来源。","instructions":"本数据集分为52个湖泊水位、水量变化的时间序列(52个文本文件)，以及一个存储了所有湖泊的面积-水位关系曲线的文本文件。时间序列文件名格式为“XXXX_Lake_water_level_storage_changes”，XXXX表示湖泊英文名。可以用记事本打开。每个时间序列文件中除头文件信息外，包含5列数据，分别为数据获取日期、水位、水位不确定性、水量变化、数据源。头文件中包含湖泊的经纬度以及对各列数据的详细描述。","description":"青藏高原湖泊广布，近年来呈现普遍扩张的趋势。掌握这些湖泊的水位及水量变化信息对认识区域水文-气候交互机制及其演变规律意义重大。本数据集包含青藏高原52个大、中型湖泊2000 - 2017年的水位、水量变化，面积-水位关系曲线等信息，多数湖泊的水位及水量变化时间分辨率在月尺度或旬尺度。本数据基于多源测高卫星数据和Landsat光学影像制作，将光学影像观测到的湖泊岸线变动转化为水位信息(简称光学水位)，并且借助光学水位移除了多源测高水位之间系统偏差。野外实验和理论分析的结果一致表明光学水位的精度在0.1 - 0.2 m，与测高水位精度相当，测高水位的不确定性用同一周期内有效水面足迹点高程的标准差表示，已经包含在数据集中。本数据集可以应用于水资源和水安全管理，湖泊流域水文分析，水量平衡分析等，尤其在湖泊溢流洪水监测方面有较大的潜力。","doi":"doi.org/10.1594/PANGAEA.898411","projection":"","language":"zh","share_type":"online","east":100.26,"west":79.18,"south":28.57,"north":38.29,"scale":null,"crs":null,"filesize":0.228,"share_policy":null,"ts_created":"2019-12-01T14:24:18.282848+08:00","doi_type":null,"ts_updated":"2021-04-19T17:27:11.436243+08:00","time_description":"","datas_group":3,"time_description_en":null,"data_format":null,"project":[11],"specials":[],"cite":null,"review_status":5,"review_invite":[{"user_name":"潘小多","username":"tingting","email":"panxd@itpcas.ac.cn","is_cancel_expert":false},{"user_name":"王磊","username":"wangshenglei98","email":"wanglei@itpcas.ac.cn","is_cancel_expert":false}],"review_editor":{"id":42421,"last_login":"2022-04-08T15:16:51.670544+08:00","username":"任慧霞","email":"510727846@qq.com","is_active":true,"is_staff":true,"user_name":"任慧霞"},"data_sources":null,"temporal_resolution":"Monthly","spatial_resolution":"1º-10º","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[218,219],"subtopics":{"metadata":"a319ca66-f8ff-4734-8565-474bfb30ca86","three_pole":null,"third_pole":null},"username":"李兴东","review_time":"2019-12-01T17:31:49.196160+08:00","protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":5383}