A Multiscalar Drought Index Sensitive to Global Warming: The Standardized Precipitation Evapotranspiration Index

@article{VicenteSerrano2010AMD,
  title={A Multiscalar Drought Index Sensitive to Global Warming: The Standardized Precipitation Evapotranspiration Index},
  author={Sergio M. Vicente‐Serrano and Santiago Beguer{\'i}a and Juan Ignacio L{\'o}pez‐Moreno},
  journal={Journal of Climate},
  year={2010},
  volume={23},
  pages={1696-1718}
}
Abstract The authors propose a new climatic drought index: the standardized precipitation evapotranspiration index (SPEI). The SPEI is based on precipitation and temperature data, and it has the advantage of combining multiscalar character with the capacity to include the effects of temperature variability on drought assessment. The procedure to calculate the index is detailed and involves a climatic water balance, the accumulation of deficit/surplus at different time scales, and adjustment to… 
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