{"id":"b900e49c-d969-47ae-b757-f9462823c0bd","title":"横断山区孕灾环境和危险性指标数据集（1961-2020）","title_en":"Dataset of disaster-prone environment and risk indicators in Hengduan Mountain Area (1961-2020)","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":"数据为栅格标准Geotiff文件格式，可以利用ArcGIS、MapGIS、ENVI、Erdas等遥感处理软件打开并编辑。","description":"基于中国地面逐日气象要素数据集、全国地理基础数据、自然环境基础数据集，运用像元二分模型、密度分析、RclimDex、非平稳标准化降水蒸散指数(NSPEI)和双线性内插法等多种指标计算方法计算了横断山区的极端降水、极端气温、干旱强度、干旱频率等多种指标。该数据集包括横断山区的孕灾环境基础数据集、极端降水指标基础数据集、极端气温指标基础数据集、干旱强度和干旱频率基础数据集。该数据集可为区域内极端高温、降水和干旱风险评估提供基本的指标体系。我们得出横断山区内90%以上站点的极端气温暖指数显著上升，极端气温冷指数显著下降。南北气温差异显著，以青藏高原为界，北部气温日较差大，平均在13.83℃，南部气温日较差小，平均为11.38℃，南部平均的冰冻日数在1d左右。随着重现期的增加，持续干燥期（CDD）大于110d的区域逐渐由西部扩大到金沙江下游流域；在不同重现期下，持续降雨期（CWD）和年降水总量（PRCPTOT）的高值区集中在西部和南部的边缘；北部的日最大降水量（RX1day）在不同重现期下变化不显著，在60mm以下；最低气温极小值（TNn）和最高气温极大值（TXx）在空间分布上北低南高，40℃以上的高温普遍发生在南部的干旱河谷。","doi":"10.11888/Meteoro.tpdc.271329","projection":"","language":"zh","share_type":"online","east":104.65,"west":93.65,"south":21.69,"north":34.09,"scale":null,"crs":null,"filesize":3737.6,"share_policy":"a","ts_created":"2021-05-23T21:34:23.109441+08:00","doi_type":"拥有自主知识产权","ts_updated":"2021-06-14T18:22:55.270628+08:00","time_description":"","datas_group":3,"time_description_en":"","data_format":null,"project":[11],"specials":["b6500306-f60b-4aa1-b0b6-0324d94866df"],"cite":null,"review_status":5,"review_invite":[{"user_name":"马伟强","username":"wqma","email":"wqma@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":"Yearly","spatial_resolution":"100m - 1km","license":"Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)","fund":[21],"subtopics":{"metadata":"b900e49c-d969-47ae-b757-f9462823c0bd","three_pole":null,"third_pole":null},"username":"邓宏艳","review_time":null,"protected_duration":null,"protected_describe":null,"is_important":false,"hit_count":888}