摘要
干旱指数数据集是干旱研究的基础。中巴经济走廊干旱灾害发生频繁,制作该区域干旱指数数据集对干旱监测及其风险评估具有重要的科学意义。本数据集基于中巴经济走廊1961–2015年逐日降水和气温栅格数据,计算得到不同时间尺度(1–24个月)标准化降水蒸散发指数(SPEI)。验证表明本数据集具有较高的精度,能够较好地反映中巴经济走廊真实的干旱时空分布特征,可为中巴经济走廊气候变化研究和干旱灾害风险评估提供数据支撑。
The drought research is based on drought index datasets.Drought disasters occur frequently in the China Pakistan Economic Corridor.The compilation of this drought index dataset is of great scientific significance for drought monitoring and risk assessment.On the basis of daily precipitation and temperature gridded data of the China-Pakistan Economic Corridor from 1961 to 2015,we calculated standardized precipitation evapotranspiration index(SPEI)for different time scales(1–24 months).Data verification indicate that this dataset is of high accuracy and can better reflect the real temporal and spatial distribution characteristics of drought in the China-Pakistan Economic Corridor.The dataset can provide substantial support for climate change research and assessment of drought disaster risk in the China-Pakistan Economic Corridor.
作者
方泽华
陶辉
陈金雨
FANG Zehua;TAO Hui;CHEN Jinyu(State Key Laboratory of Desert and Oasis Ecology,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,Urumqi 830011,P.R.China;University of Chinese Academy of Science,Beijing 100049,P.R.China)
基金
科技基础资源调查专项(2018FY100501)。
关键词
干旱
SPEI
指数
中巴经济走廊
数据评估
drought
SPEI
index
China-Pakistan Economic Corridor(CPEC)
data assessment
