English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/55516
Campo DC Valor Lengua/Idioma
dc.contributor.authorAngulo-Martínez, Marta-
dc.contributor.authorBeguería, Santiago-
dc.identifier.citationAngulo-Martínez M, Beguería S. Do atmospheric teleconnection patterns influence rainfall erosivity? A study of NAO, MO and WeMO in NE Spain, 1955-2006. Journal of Hydrology 450: 168-179 (2012)es_ES
dc.description39 Pags., 11 Figs. The definitive version is available at: http://www.sciencedirect.com/science/journal/00221694es_ES
dc.description.abstractRainfall erosivity is the ability of precipitation to erode soil. Raindrops impact on the surface—rainsplash—represents an important mechanism of soil particles detachment. If the soil is not perfectly flat rainsplash will also produce the movement of soil particles down the slope due to diffusion. But even in the case of flat soils the detached particles will be available for transport by other erosion agents such as surface runoff. Despite its importance as fundamental erosion process very few studies have addressed the climatology of rainfall erosivity. It is known fact rainfall erosivity in long term (e.g., cumulative annual values) is determined by a few number of heavy events. This study analyses the interannual variability of daily rainfall erosivity in NE Spain during the period 1955–2006, and its connection with atmospheric circulation patterns influencing rainfall in the region, namely the North Atlantic Oscillation (NAO), the Mediterranean Oscillation (MO) and the Western Mediterranean Oscillation (WeMO). It is found that the erosive power of rainfall is stronger during negative phases of the three atmospheric circulation indices, and weaker during positive conditions. Daily rainfall erosivity series were adjusted to a Generalized Pareto probability distribution for positive and negative days of the atmospheric circulation indices, for assessing their effects on rainfall erosivity extreme events. Results showed higher values expected for a given return period in most of the area under negative conditions of all indices, especially at the Mediterranean coast. Overall, MO and WeMO showed the strongest influence on daily rainfall erosivity extremes. These findings would be useful in the implementation of soil conservation strategies.es_ES
dc.description.sponsorshipThis work has been supported by the research Projects CGL2008-00831/BTE, and CGL2008-01189/BTE, funded by the Spanish Ministry of Science and Innovation (CICYT). Research of M.A.-M. is supported by a JAE-Predoc Research Grant from the Spanish National Research Council (Consejo Superior de Investigaciones Científicas—CSIC).es_ES
dc.subjectRainfall erosivityes_ES
dc.subjectRUSLE R factores_ES
dc.titleDo atmospheric teleconnection patterns influence rainfall erosivity? A study of NAO, MO and WeMO in NE Spain, 1955-2006es_ES
dc.description.peerreviewedPeer reviewedes_ES
Aparece en las colecciones: (EEAD) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
BegueriaS_JHydrol_2012.pdf3,16 MBAdobe PDFVista previa
Show simple item record

Artículos relacionados:

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.