Journal
HYDROLOGICAL PROCESSES
Volume 19, Issue 20, Pages 4055-4068Publisher
WILEY
DOI: 10.1002/hyp.5871
Keywords
evapotranspiration; Cyprus; alluvium; streamflow observations; water balance
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The Kouris catchment is located in the south of the Troodos massif in Cyprus. The hydrology is driven by a Mediterranean climate, a mountainous topography, and a complex distribution of hydrogeological properties resulting from complex geology. To quantify the regional water balance further, a simple method using continuous streamflow records in the River Limnatis (Kouris catchment) was applied to calculate the actual evapotranspiration rate in the dry seasons. It was found that daily cycles of streamflow, recorded by automatic pressure logger, were caused by direct evaporation from the groundwater table and by transpiration of riparian forest. The daily amounts of 'missing' streamflow were calculated for the period 30 October-4 November 2001 and were extrapolated to the entire dry season and to the whole Kouris catchment. The actual evapotranspiration rate from the alluvial aquifer of the region is 2.4 +/- 0.5 Mm(3) for April-September 2001. The validity of the assumptions and the uncertainties in the estimates used in the method are discussed. Copyright (c) 2005 John Wiley & Sons, Ltd.
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