Title: Climate changes of hydrometeorological and hydrological extremes in the Paute basin, Ecuadorean Andes
Authors: Mora Serrano, Diego ×
Campozano, L.
Cisneros, Felipe
Wyseure, Guido
Willems, Patrick #
Issue Date: 19-Feb-2014
Publisher: European Geophysical Society
Series Title: Hydrology and Earth System Sciences vol:18 issue:2 pages:631-648
Abstract: Investigation was made on the climate change signal
for hydrometeorological and hydrological variables along
the Paute River basin, in the southern Ecuador Andes. An adjusted quantile perturbation approach was used for climate
downscaling, and the impact of climate change on runoff
was studied for two nested catchments within the basin. The
analysis was done making use of long daily series of seven
representative rainfall and temperature sites along the study area and considering climate change signals of global and regional climate models for IPCC SRES scenarios A1B, A2
and B1. The determination of runoff was carried out using
a lumped conceptual rainfall–runoff model. The study found
that the range of changes in temperature is homogeneous for
almost the entire region with an average annual increase of
approximately +2.0 C. However, the warmest periods of the
year show lower changes than the colder periods. For rainfall, downscaled results project increases in the mean annual rainfall depth and the extreme daily rainfall intensities along the basin for all sites and all scenarios. Higher changes in extreme rainfall intensities are for the wetter region. These lead to changes in catchment runoff flows, with increasing high peak flows and decreasing low peak flows. The changes in high peak flows are related to the changes in rainfall extremes, whereas the decreases in the low peak flows are due to the increase in temperature and potential evapotranspiration together with the reduction in the number of wet days.
ISSN: 1027-5606
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Hydraulics Section
Department of Business and Management Studies - UC Leuven
Division Soil and Water Management
× corresponding author
# (joint) last author

Files in This Item:
File Description Status SizeFormat
hess-18-631-2014 Mora.pdf Published 4158KbAdobe PDFView/Open


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science