articleJournal of HydrometeorologyJul 31, 2010BRONZE OA

A New Global 0.5° Gridded Dataset (1901–2006) of a Multiscalar Drought Index: Comparison with Current Drought Index Datasets Based on the Palmer Drought Severity Index

SMSergio M. Vicente‐SerranoSBSantiago Beguerı́aJIJuan Ignacio López‐MorenoCCCarmen Casal AnguloAEA. El Kenawy

Instituto Pirenaico de Ecología · Estación Experimental de Aula Dei

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Abstract

Abstract A monthly global dataset of a multiscalar drought index is presented and compared in terms of spatial and temporal variability with the existing continental and global drought datasets based on the Palmer drought severity index (PDSI). The presented dataset is based on the standardized precipitation evapotranspiration index (SPEI). The index was obtained using the Climatic Research Unit (CRU) TS3.0 dataset at a spatial resolution of 0.5°. The advantages of the new dataset are that (i) it improves the spatial resolution of the unique global drought dataset at a global scale; (ii) it is spatially and temporally comparable to other datasets, given the probabilistic nature of the SPEI; and, in particular,…

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Topics & keywords

Topics
Keywords
  • Cru
  • NetCDF
  • Index (typography)
  • Evapotranspiration
  • Climatology
  • Environmental science
  • Scale (ratio)
  • Precipitation
UN Sustainable Development Goals
  • Climate action
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