Observed precipitation trend changes in the western Mediterranean region

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Títol: Observed precipitation trend changes in the western Mediterranean region
Autors: Valdes-Abellan, Javier | Pardo Picazo, Miguel Ángel | Tenza-Abril, Antonio José
Grups d'investigació o GITE: Ingeniería Hidráulica y Ambiental (IngHA) | Tecnología de Materiales y Territorio (TECMATER)
Centre, Departament o Servei: Universidad de Alicante. Departamento de Ingeniería Civil
Paraules clau: Drought | Semiarid regions | Breakpoints | Rainfall reduction | Daily precipitation patterns
Àrees de coneixement: Ingeniería Hidráulica | Ingeniería de la Construcción
Data de publicació: d’agost-2017
Editor: Wiley
Citació bibliogràfica: International Journal of Climatology. 2017, 37(Suppl. 1): 1285-1296. doi:10.1002/joc.4984
Resum: This paper analyses the daily precipitation data recorded for the last 75–80 years in SE Spain. Prior to statistical analysis, homogeneity tests were performed to determine the usefulness of the data (recorded in six pluviometric stations). If the data were homogeneous, the Mann–Kendall test was performed to detect monotonic trends for variables such as total precipitation, number of days with precipitation greater than 1, 20 or 40 mm, number of consecutive dry days and number of consecutive wet days. Moreover, the linear tendency was calculated and accepted (or rejected) by performing a Student's t-test of the calculated residual values. The results showed, on average, a clear change in precipitation patterns for the last 20 years. Annual rainfall had decreased, with values ranging from 0 to 15%, dry periods had increased in length, and the number of rainy days had decreased (especially when high daily precipitation was considered). This latter notion did not exactly concur with the conclusions of the Intergovernmental Panel on Climate Change (IPCC) 2014 Synthesis Report related to the study area.
Patrocinadors: This study was partially financed by the CGL2013-48802-C3-3-R project (Spanish Ministry of Science and Innovation) and by the GRE15-19 (University of Alicante).
URI: http://hdl.handle.net/10045/69012
ISSN: 0899-8418 (Print) | 1097-0088 (Online)
DOI: 10.1002/joc.4984
Idioma: eng
Tipus: info:eu-repo/semantics/article
Drets: © 2017 Royal Meteorological Society
Revisió científica: si
Versió de l'editor: https://doi.org/10.1002/joc.4984
Apareix a la col·lecció: INV - IngHA - Artículos de Revistas
INV - TECMATER - Artículos de Revistas

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