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DIGITAL.CSIC
Dataset . 2024
Data sources: DIGITAL.CSIC
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SPEIbase v.2.10 [Dataset]: A Comprehensive Tool for Global Drought Analysis

Authors: Beguería, Santiago; Vicente Serrano, Sergio M.; Reig-Gracia, Fergus; Latorre Garcés, Borja;

SPEIbase v.2.10 [Dataset]: A Comprehensive Tool for Global Drought Analysis

Abstract

[ES] La base de datos SPEI (SPEIbase) ofrece un registro global completo de las condiciones de sequía. Proporciona una medida estandarizada de la sequía, el Índice Estandarizado de Precipitación-Evapotranspiración (SPEI), calculado a múltiples escalas temporales que van desde un mes hasta 48 meses. El índice SPEI considera tanto la precipitación como la evapotranspiración potencial (ETP), estimada utilizando el método FAO-56 Penman-Monteith. Este enfoque proporciona una evaluación sólida y precisa de las condiciones de sequía en diversas regiones y periodos de tiempo. SPEIbase es de libre acceso y se puede utilizar para respaldar una amplia gama de aplicaciones, incluido el monitoreo de sequías,la evaluación de riesgos y los estudios sobre el cambio climático. Esta es una actualización de la versión SPEIbase v2.9 (https://digital.csic.es/handle/10261/332007) basada en el conjunto de datos CRU TS 4.08, que abarca el período comprendido entre enero de 1901 y diciembre de 2023. Para obtener más información sobre la base de datos SPEIbase, consulte: https://spei.csic.es/

[EN] The SPEI database (SPEIbase) provides a comprehensive global record of drought conditions. It offers a standardized measure of drought, the Standardized Precipitation-Evapotranspiration Index (SPEI), computed at multiple time scales ranging from monthly to 48 months. The SPEI index considers both precipitation and potential evapotranspiration (PET), estimated using the FAO-56 Penman-Monteith method. This approach provides a robust and accurate assessment of drought conditions across various regions and timeframes. SPEIbase is freely accessible and can be used to support a wide range of applications, including drought monitoring, risk assessment, and climate change studies. This is an update of the SPEIbase v2.9 (https://digital.csic.es/handle/10261/332007).-- What’s new in version 2.10: 1) Based on the CRU TS 4.08 dataset, spanning the period between January 1901 to December 2023. For more details on the SPEI visit http://sac.csic.es/spei For more details on the SPEI database visit https://spei.csic.es/

[ES] El conjunto de datos se compone de 48 archivos NetCDF, cada uno representando una escala temporal distinta que abarca desde 1 hasta 48 meses. Se puede acceder y manipular estos archivos utilizando diversas herramientas de software, incluidas aplicaciones SIG como QGIS y ArcMap, aplicaciones especializadas como Panoply (https://www.giss.nasa.gov/tools/panoply/), y librerías específicas como ncdf4, raster o terra en R, así como netCDF4 o xarray en Python, entre otras. Cada archivo NetCDF contiene una matriz tridimensional con dimensiones de 720x360x1476. Los píxeles de tierra se identifican con el valor 1.0x10^30 y los errores de cálculo con valores NaN. El conjunto de datos se ha generado en R utilizando el paquete SPEI (http://cran.r-project.org/web/packages/SPEI).

[EN] The dataset is comprised of 48 NetCDF files, each representing a distinct temporal scale spanning from 1 to 48 months. It can be accessed and manipulated using various software tools, including GIS applications like QGIS and ArcMap, specialized applications like Panoply (https://www.giss.nasa.gov/tools/panoply/), and dedicated libraries such as ncdf4, raster, or terra in R, as well as netCDF4 or xarray in Python, among others. Each NetCDF file contains a 3-dimensional matrix with dimensions of 720x360x1476. Land pixels are marked with the value 1.0x10^30, and occasionally, calculation errors may lead to NaN values. The dataset has been generated in R using the SPEI package (http://cran.r-project.org/web/packages/SPEI).

This work was not supported by any external funding.

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Spain
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Keywords

Climatology, Standardized Precipitation-Evapotranspiration Index, Take urgent action to combat climate change and its impacts, Drought, Drought Index, Evapotranspiration, Global data, drought index, Precipitation, drought, global warming, Global Warming, meteorological observations, Climate data, SPEI, climate change, Climate change, http://metadata.un.org/sdg/13, climate services

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