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Standardized Precipitation Evapotranspiration Index (SPEI) Dataset of Yunnan Province (1998-2012)

LIU Shiliang1CHENG Fangyan1ZHANG Yueqiu1HOU Xiaoyun1WU Xue1
1 State Key Laboratory of Water Environment Simulation,School of Environment,Beijing Normal University,Beijing 100875,China


Published:Jan. 2017

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Data Downloaded:44.45 MB      Citations:

Key Words:

Yunnan Province,Southwest China,Standardized Precipitation Evapotranspiration Index (SPEI),drought,Acta Ecologica Sinica


Yunnan Province, located in Southwest China, is subject to the threat of drought in recent years. In this study, the authors adopted the Standardized Precipitation Evapotranspiration Index (SPEI) which was improved by Vicente-Serrano et al. based on the standardized precipitation index to analyze the drought dynamics in Yunnan. The monthly meteorological data extracted from the selected 32 weather stations from 1998 to 2012 were used to calculate SPEI at 3, 6, 12, and 24 months scale. After that, the dataset of SPEI in Yunnan Province is established by these monthly SPEI data. The results revealed that SPEI3, SPEI6, SPEI12 and SPEI24 showed a decreasing trend, which demonstrated the regional drought was gradually strengthened. The dataset consists of two parts: (1) geolocations of the 32 data points; (2) the SPEI data of each point. The dataset is archived in .kmz, .shp and .xlsx formats with the compressed data size of 212 KB. The analysis paper based on the dataset was published in the journal of Acta Ecologica Sinica, NO.15, Vol.36, 2016.Browse

Foundation Item:

National Natural Science Foundation of P.R. China (41571173); Ministry of Science and Technology of P.R. China (2014BAK19B06)

Data Citation:

LIU Shiliang, CHENG Fangyan, ZHANG Yueqiu, HOU Xiaoyun, WU Xue. Standardized Precipitation Evapotranspiration Index (SPEI) Dataset of Yunnan Province (1998-2012)[J/DB/OL]. Digital Journal of Global Change Data Repository, 2017.

Liu, S. L., Cheng, F. Y., Hou, X. Y., et al. Standardized precipitation evapotranspiration index (SPEI) dataset in Yunnan province, China [J]. Journal of Global Change Data & Discovery, 2017, 1(4): 447–451. DOI: 10.3974/geodp.2017.04.11.

Data Product:

ID Data Name Data Size Operation
1 StationsYN.kmz 2.55KB
2 YunnanSPEI_1998-2012.rar 209.89KB