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Camarasa Belmonte, Ana María; López García, María José | |
Aquest document és un/a capítol, creat/da en: 2006 | |
Before analysing the variability of rainfall in space and time it is necessary to select rainfall events in relation to the objectives and scale of the study. This paper proposes criteria for selecting rainfall events, with hydrological objectives. These criteria are then applied to the territory of the River Jucar Water Authority and the daily data covering a 15 year period (1989-2003) recorded by the Automatic Hydrological Information System (SAIH). 363 events are chosen and characterised by indicators of total rainfall, duration, intensity and irregularity calculated over 11 regional units. The analysis of these indicators shows a littoral-interior dichotomy. The largest number of events were recorded near the coast (except in one region), mostly in winter, with greatest volumes and higher irregularity. In the interior the events were less intense and more frequent in summer. The orographic effect is important, not just in relation to altitude but also in relation to the orientation of the mountain ranges. |
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