Preprint Article Version 1 This version is not peer-reviewed

Multiple Temporal Scales Assessment in the Hydrological Response of Small Mediterranean Catchments

Version 1 : Received: 14 November 2019 / Approved: 15 November 2019 / Online: 15 November 2019 (16:56:57 CET)

How to cite: Fortesa, J.; García-Comendador, J.; Calsamiglia, A.; Tomàs-Burguera, M.; Latron, J.; Estrany, J. Multiple Temporal Scales Assessment in the Hydrological Response of Small Mediterranean Catchments. Preprints 2019, 2019110185 (doi: 10.20944/preprints201911.0185.v1). Fortesa, J.; García-Comendador, J.; Calsamiglia, A.; Tomàs-Burguera, M.; Latron, J.; Estrany, J. Multiple Temporal Scales Assessment in the Hydrological Response of Small Mediterranean Catchments. Preprints 2019, 2019110185 (doi: 10.20944/preprints201911.0185.v1).

Abstract

Mediterranean catchments are characterized by significant spatial and temporal hydrological variability caused by the interaction of natural as well human-induced abiotic and biotic factors. This study investigates the (non-)linearity rainfall-runoff relationship at multiple temporal scales in representative small Mediterranean catchments (i.e., < 10 km2) to achieve a better understanding of the hydrological response. Rainfall-runoff relationship was evaluated in 44 catchments at annual and event –203 events in 12 of these 44 catchments– scales. A linear rainfall-runoff relation was observed at annual scale with higher scatter in pervious than impervious catchments. Larger scattering was observed at event scale, although pervious lithology and agricultural land use promoted significant rainfall-runoff linear relations in winter and spring. These relationships were particularly analysed during five hydrological years in Es Fangar catchment (3.35 km2; Mallorca, Spain) as a temporal downscaling to assess intra-annual variability in which antecedent wetness conditions played a significant role in runoff generation.

Subject Areas

rainfall-runoff; multiple temporal scales; non-linearity; small catchments; Mediterranean

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