0000000001264014
AUTHOR
Millán M. Millán
Re-evaluation of moisture sources for the August 2002 extreme rainfall episode in central Europe: Evaporation from falling precipitation included in a mesoscale modeling system
Summary Discriminating moisture sources with precision is an important requirement to better understand the processes involved in extreme rainfall episodes. In a previous contribution by Gangoiti et al. (2011b), an innovative technique was presented to assess surface moisture sources contributing to a target precipitation within a Lagrangian framework. The technique was based in transporting parcels of vapor, representing the target precipitation, across a set of nested grids covering a large area at different resolutions. A mesoscale model estimated the meteorological variables to transport and redistribute the vapor back into its original sources, all of them assumed to be at the surface.…
Torrential precipitations on the Spanish east coast: The role of the Mediterranean sea surface temperature
Abstract Floods constitute one of the most important natural risks on the Spanish Mediterranean coast. Although it is very difficult to avoid them, a correct understanding of their principal cause, which is torrential rain, can facilitate their prediction and in this way avoid, at least partially, their catastrophic effects (both loss of human lives and material damage). The work presented here is part of a more extensive study underway in the CEAM (Centro de Estudios Ambientales del Mediterraneo). Its objective is the analysis of the conditions that produce torrential precipitations. These can be explained by the hypothesis of the Back Door Front, a mechanism which on its own permits the d…
Análisis espacial de los episodios secos en la Comunidad Valenciana en el periodo 1950-1996
El análisis de las precipitaciones en la Comunidad Valenciana, durante los últimos 40 años, pone de manifiesto que ha habido varios episodios de sequía de intensidad y duración diferentes. En este trabajo se analizan los episodios de sequía que se han sucedido en la Comunidad Valenciana desde 1950, teniendo en cuenta su intensidad, alcance espacial y duración. La metodología utilizada es el análisis de probabilidades de recurrencia. Se han reconocido cuatro episodios de sequía que se corresponden con los siguientes períodos: 1952-55; 1963-64; 1978-85; 1993-95. Los resultados indican que existe una gran dependencia de las lluvias otoñales para el establecimiento de condiciones de humedad o s…