1961–2015年新疆区域SPEI干旱指数数据集  

A dataset of drought indices based on the standardized precipitation evapotranspiration index(SPEI)over Xinjiang,China(1961–2015)

作　　者：姚俊强[1] 毛炜峄[1] 胡文峰[1,2] 陈静 范煜婷 Yao Junqiang;Mao Weiyi;Hu Wenfeng;Chen Jing;Fan Yuting(Institute of Desert Meteorology,Taklimakan Desert Field Base for Meteorological Scientific Experiment,China Meteorological Administration,Urumqi 830002,P.R.China;Fuyang Normal University,Fuyang 236000,P.R.China)

机构地区：[1]中国气象局乌鲁木齐沙漠气象研究所,中国气象局塔克拉玛干沙漠气象野外科学试验基地,中亚大气科学研究中心,乌鲁木齐830002 [2]阜阳师范大学,安徽阜阳236000

出　　处：《中国科学数据（中英文网络版）》2019年第3期108-117,共10页China Scientific Data

基　　金：国家重点研发计划项目(2018YFC1507101);国家自然科学基金项目(41501050,41605067);中央级公益性科研院所基本科研业务费专项资金项目(IDM201506)

摘　　要：新疆地处亚洲中部干旱区,地形复杂,生态环境脆弱,抵御灾害的能力较低,是全球气候变暖的敏感区和强烈影响区。随着全球气候变暖,新疆的干旱化问题引起了广泛关注。本文基于中国新疆区域55个气象观测站1961–2015年逐日气温和降水观测资料,经过数据质量控制和异常值剔除,计算得到每个站点1961–2015年1、3、6、12、24和48个月时间尺度逐月标准化降水蒸散发指数(SPEI)时间变化序列,整理出新疆干旱指数数据集。本数据集为分析新疆区域长时间序列不同时间尺度干旱变化趋势及变化特征提供了数据支撑,也可以作为基础数据来探索干旱事件对生态水文环境和农牧业生产的影响。Xinjiang is located in the Eurasian hinterland in northwestern China.With complex terrain and fragile ecological environment,Xinjiang is particularly sensitive to global warming.Indeed,drought in Xinjiang has attracted extensive attention under global warming.Based on daily temperature and precipitation observed at 55 meteorological stations over Xinjiang during 1961–2015,this study calculated a series of drought indices based on the Standardized Precipitation Evapotranspiration Index(SPEI).The SPEI was calculated for each station with selected time scales of 1,3,6,12,24 and 48 months.This dataset is useful for research on the trends and spatial-temporal characteristics of drought events over Xinjiang.When used together with regional statistics,it helps reveal the impacts of drought on agricultural production and eco-hydrological environment.

关 键 词：标准化降水蒸散发指数 新疆 干旱变化 气象站点 

分 类 号：P426.616[天文地球—大气科学及气象学]