{"id":"5af01f34-20b5-44ca-98d1-605fb2eae0de","title":"泛第三极34个关键节点降水量距平百分率气象干旱指数数据集（2014-2015）","title_en":"Meteorological drought index data set of 34 key nodes of Pan third pole precipitation anomaly percentage (2014-2015)","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":"ENVI标准格式(.dat)，可以采用ARCGIS、ENVI打开查看","description":"在全球变暖的背景下，干旱发生的频率和强度呈增加趋势，由于干旱灾害所引发的水资源匮乏、粮食危机、生态恶化（如荒漠化）等，直接威胁到国家的粮食安全和社会经济发展，干旱灾害风险评估及应急管理的技术水平亟待提高。“一带一路”沿线区域生态环境脆弱、农业耕地集中、干旱灾害频繁，利用遥感卫星监测大区域的干旱水平及其时空变化，对于科学掌握“一带一路”地区的干旱格局、区域分异特征，及其对农业耕地的影响具有重要的科学和现实意义。降水距平百分率反映某一时段降水量与同期平均状态的偏离程度，以百分率表示。\n该数据集以GPM IMERG Final Run(GPM)日值降雨资料为基础，计算对应地区的降水量，采用降水距平百分率等级评价指标，分析了不同等级干旱的分布特征，空间分辨率200m。\n数据的区域为泛第三极34个关键节点（阿巴斯、阿斯塔纳、科伦坡、瓜达尔、孟巴、德黑兰、万象等地区）。","doi":"10.11888/Meteoro.tpdc.271005","projection":"","language":"zh","share_type":"online","east":180.0,"west":12.0,"south":-11.0,"north":82.0,"scale":null,"crs":null,"filesize":10500.0,"share_policy":"a","ts_created":"2020-01-23T13:11:41.261801+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-04-19T10:01:37.744874+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[11],"specials":["f2a78cde-1c98-4241-94dc-7532eba32b80"],"cite":null,"review_status":5,"review_invite":[{"user_name":"冉有华","username":"ryh","email":"ranyh@lzb.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":"100m - 1km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[6],"subtopics":{"metadata":"5af01f34-20b5-44ca-98d1-605fb2eae0de","three_pole":null,"third_pole":"XDA20030302"},"username":"XDA20030302","review_time":"2020-01-23T13:25:17.994228+08:00","protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":1149}