云南省标准化降水蒸散指数数据集（1998-2012）

云南省位于中国西南地区，近年来干旱频发。作者采用Vicente-Serrano等在标准化降水指标基础上提出的标准化降水蒸散指数（Standardized Precipitation Evapotranspiration Index, SPEI），研究了云南省的旱情。利用云南省境内32个站点逐月的气象统计数据，分别计算出1998至2012年各站点3、6、12和24个月的SPEI，组成云南省标准化降水蒸散指数数据集（1998-2012）。结果表明，SPEI3、SPEI6、SPEI12和SPEI24随时间推移均呈现降低趋势，即区域内干旱趋势逐渐加强。数据集包括两部分：（1）标准化降水蒸散指数计算站点的地理位置数据；（2）各点1998-2012年的标准化降水蒸散指数（SPEI）。数据集以.kmz, .shp和.xlsx格式存储，压缩后数据量212KB。该数据集的分析研究成果发表在《生态学报》2016年36卷第15期。

Yunnan Province is located in southwest China, where drought disasters have occurred frequently in recent years. The authors adopted the Standardized Precipitation Evapotranspiration Index (SPEI) proposed by Vicente-Serrano et al. based on the Standardized Precipitation Index (SPI) to investigate drought conditions in Yunnan Province. Using monthly meteorological statistical data from 32 meteorological stations within Yunnan Province, the authors calculated the SPEI values at 3-, 6-, 12-, and 24-month timescales for each station from 1998 to 2012, thus forming the Standardized Precipitation Evapotranspiration Index Dataset of Yunnan Province (1998–2012). The results indicate that SPEI3, SPEI6, SPEI12, and SPEI24 all show a downward trend over time, meaning the regional drought trend is gradually intensifying. The dataset consists of two parts: (1) Geographic location data of the meteorological stations used for SPEI calculation; (2) Standardized Precipitation Evapotranspiration Index (SPEI) values of each station from 1998 to 2012. The dataset is stored in .kmz, .shp, and .xlsx formats, with a compressed size of 212 KB. The analytical research findings of this dataset were published in *Acta Ecologica Sinica*, Volume 36, Issue 15, 2016.

搜集汇总

背景与挑战

背景概述

该数据集包含1998年至2012年云南省32个气象站的标准化降水蒸散指数（SPEI）数据，计算了3、6、12和24个月尺度的SPEI值，用于分析干旱动态。数据以.kmz、.shp和.xlsx格式存储，压缩后大小为212 KB。