CR Climate Research Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsSpecials CR 43:215-228 (2010) - DOI: https://doi.org/10.3354/cr00937 Precipitation trends in Spanish hydrological divisions, 1946–2005 José Carlos Gonzalez-Hidalgo1,2,*, Michele Brunetti1, Martin de Luis2 1ISAC-CNR, Via Gobetti 1001, Bologna, Italy 2Department of Geography, University of Zaragoza, Plaza San Francisco sn. 50009, Zaragoza, Spain *Email: jcgh@unizar.es ABSTRACT: This paper presents an analysis of precipitation changes in the main Hydrological Divisions (HDs; 'Cuencas Hidrográficas', Water Planning Divisions) in Spain from 1946–2005. Trend analysis revealed several monthly long-term variations and important spatial differences that should be taken into account for any national water-planning scheme. The most spatially coherent signals were a negative trend observed in March and June, affecting all catchments (HDs), and a positive trend in October, which was particularly evident in the northwestern catchments. These caused a redistribution of precipitation throughout the year, with a reduction in the length of the wet season (due to the negative trend in March) and a concentration of precipitation at the beginning of the wet season in October. A running trend analysis revealed variability in the long-term tendency which, although quite persistent, changed in strength between sub-periods. KEY WORDS: Precipitation trend . Running trend . Hydrological Divisions . Water Planning . Spain Full text in pdf format PreviousNextCite this article as: Gonzalez-Hidalgo JC, Brunetti M, de Luis M (2010) Precipitation trends in Spanish hydrological divisions, 1946–2005. Clim Res 43:215-228. https://doi.org/10.3354/cr00937Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in CR Vol. 43, No. 3. Online publication date: November 10, 2010 Print ISSN: 0936-577X; Online ISSN: 1616-1572 Copyright © 2010 Inter-Research.
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Hidalgo et al. (2010) studied this question.