The effect of observation timescales on the characterisation of extreme Mediterranean precipitation

Autor: A. M. Camarasa Belmonte, J. Soriano García, M. J. López-García
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Zdroj: Advances in Geosciences, Vol 26, Pp 61-64 (2010)
Druh dokumentu: article
ISSN: 1680-7340
1680-7359
DOI: 10.5194/adgeo-26-61-2010
Popis: This paper analyses the behaviour of five rainfall indicators (maximum intensity, cumulative rainfall, irregularity, probability of rain and persistence of rain) over different observation timescales ranging from 5 min to 24 h. It covers a large area on the Mediterranean side of the Iberian Peninsula (River Júcar Water Authority, 43 000 km2) on a continuous basis over a period of 14 years (1994–2007). The results show that the behaviour of extreme Mediterranean rainfall is heavily dependent on the observation timescale. There are a number of turning points in the indicator trends which occur on different timescales (1 and 6 h in the case of rain intensity and irregularity, 6 h for cumulative rainfall and between 15 and 30 min for the persistence of rain) and may be relevant for the determination of thresholds used in water management.
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