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Aridity Index in Spain, v1.0.0. [Dataset]

Climatologic aridity in Spain for the 1961-2020 period
Authors: Trullenque Blanco, Víctor; Beguería, Santiago;

Aridity Index in Spain, v1.0.0. [Dataset]

Abstract

[ES] Esta base de datos climática presenta un conjunto de información representado en forma de cuadrícula a escalas mensual, estacional y anual sobre la aridez en España (territorios de la Península Ibérica, Baleares y Canarias) entre enero de 1961 y diciembre de 2020. El índice de aridez es una medida del carácter seco o húmedo del clima de un lugar, y junto con la temperatura media es uno de los factores climáticos que mejor explican la distribución de los diferentes biomas en el planeta. A partir de los datos de observación meteorológica del Banco Nacional de Datos Climáticos de la Agencia Estatal AEMET, y utilizando la experiencia y métodos desarrollados por el equipo investigador para la elaboración de otras bases de datos como la Base de Datos Histórica de la Sequía en España (https://monitordesequia.csic.es/historico), se ha obtenido una base de datos reticular del Índice de Aridez definido por el Programa de Naciones Unidas para el Medio Ambiente: (IA, mm / mm) como el cociente entre la precipitación (P, mm) y la evapotranspiración potencial (PET, mm): AI = P / PET. Utilizando la ETo (evapotranspiración de referencia), calculada mediante la ecuación Penman-Monteith de la FAO-56. Los datos de P y ETo se han obtenido de la Base de Datos Histórica de la Sequía en España (https://monitordesequia.csic.es/historico). Se han calculado tanto las series temporales como las climatologías de los periodos/subperiodos a escala temporal mensual, estacional y anual. Se ha considerado el periodo 1961-2020, de 60 años. Este marco temporal también se ha subdivido en dos periodos iguales de 30 años, conocidos como periodos normales: 1961-1990 y 1991-2020. Los datos están separados en dos grupos de archivos: uno para la España peninsular (incluidas las Islas Baleares) y otro para las Islas Canarias.

[EN] The Aridity Index in Spain v1.0.0. dataset consists of 42 netCDF files with Aridity Index information of Spain (Iberian Peninsula territories, Balearic and Canary islands) at monthly, seasonal and annual time-scale for the 1961-2020 time-period. The data are divided into time series and climatologies calculated for the entire period (1961-2020) and two subperiods (1961-1990 and 1991-2020). The time series correspond to the mean Aridity Index and in the case of climatologies, in addition to the mean, the coefficients of variation of the index are presented. For operational reasons the data are shown divided into two groups of grids, those corresponding to mainland Spain and the Balearic Islands (spatial extent: longitude = 1115, latitude: 834, units = 0.02 degrees, EPSG: 25830) and a second group for the Canary Islands only (longitude = 455, latitude: 168, units = 0.02 degrees, EPSG: 25830). [ES] El conjunto de datos Aridity Index in Spain v1.0.0 consta de 42 archivos netCDF con información del Índice de Aridez de España (territorios de la Península Ibérica, Baleares y Canarias) a escala temporal mensual, estacional y anual para el periodo 1961-2020. Los datos se dividen en series temporales y climatologías calculadas para todo el periodo (1961-2020) y dos subperiodos (1961-1990 y 1991-2020). Las series temporales corresponden al Índice de Aridez medio y en el caso de las climatologías, además de la media, se presentan los coeficientes de variación del índice. Por razones operativas los datos se muestran divididos en dos grupos de mallas, las correspondientes a la España peninsular y Baleares (extensión espacial: longitud = 1115, latitud: 834, unidades = 0,02 grados) y un segundo grupo sólo para Canarias (longitud = 455, latitud: 168, unidades = 0,02 grados).

[EN] A monthly, seasonal and annual climatological aridity gridded data set over Spain (Iberian Peninsula territories, Balearic and Canary islands) between January 1961 and December 2020. The aridity index is a measure of the dryness or humidity of a region's climate, and along with average temperature, it is one of the climatic factors that best explain the distribution of different biomes on the planet. From the meteorological observation data of the National Climate Data Bank of the State Agency AEMET, and using the experience and methods developed by the research team for the elaboration of other databases such as the Historical Database of Drought in Spain (https://monitordesequia.csic.es/historico), a grid database of the Aridity Index defined by the United Nations Environmental Program has been obtained: (AI, mm / mm) as the ratio of precipitation (P, mm) to potential evapotranspiration (PET, mm): AI = P / PET. Here we use ETo (reference evapotranspiration), as computed by the FAO-56 Penman-Monteith equation. Data for P and ETo have been obtained from the Historical Database of Drought in Spain (https://monitordesequia.csic.es/historico). Both the time series and the climatologies of the periods/subperiods at monthly, seasonal and annual time scales have been calculated. Here we shall consider the period 1961-2020, spanning 60 years. This time frame can be sub-divided into two equal 30-year periods, also known as normal-periods: 1961-1990 and 1991-2020. The data are separated into two files groups: one for mainland Spain (including the Balearic Islands) and one for the Canary Islands.

This work has been supported by the Biodiversity Foundation of the Ministry for the Ecological Transition and the Demographic Challenge (MITECO) of the Government of Spain, within the framework of the Recovery, Transformation and Resilience Plan (PRTR), funded by the European Union - NextGenerationEU: Project I023, Analysis and monitoring of climatic aridity in Spain (ARIDESP). We also acknowledge financial support from the Ministry of Science, Innovation and Universities of the Government of Spain through research project PID2020-116860RB-C22, and from the Government of Aragón through grant E02-17R.

climatic data in 42 netCDF files

No

Country
Spain
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Keywords

climate variability, Take urgent action to combat climate change and its impacts, Climatic maps, Climate, Potential Evapotraspiration, climatology, Precipitation, Climate data, climatic data, ARIDESP, Spain, Climatic data, anthropogenic climate change, Climate change, http://metadata.un.org/sdg/13, Water balance, Gridded data, Aridity

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
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Italian National Biodiversity Future Center