IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Extreme events, natural variability and climate change : Hydrological impacts of climate change in a humid tropical river basin
Hydrological impacts of climate change in a humid tropical river basin
Author : C.G. MADUSUDHANAN (1), T.I.ELDHO (2) AND D.S.PAI (3)
ABSTRACT
Humid tropics are extremely vulnerable to climate change due to the fragile and diversely rich ecosystems and high
human dependence. This becomes exacerbated and confounded in river-delta regions where both natural and human
systems have limited adaptive capacity. The present work looks into the hydrological impacts of climate change in an
unimpaired river basin in the Western Ghats of South India. The applicability of a macroscale land surface, Variable
Infiltration Capacity (VIC), model in assessing the hydrological impacts of climate change in a high rainfall tropical river
basin is investigated. The model is validated at a finer resolution of 0.25 degree and is found to be skillful in simulating the
observed runoff at daily scale. The model is calibrated with detrended climate data and is further used to assess the
hydrological impacts under a given landuse. The study highlights sensitivity of the hydrological impacts to temporal scales.
However, the observed changes in the climate has insignificant impact on flow regimes at all temporal scales. The drastic
change in the baseflow regime has wider implications for agriculture, industry, aquatic life and overall water availability in
the region.
File Size : 1,202,004 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Extreme events, natural variability and climate change
Date Published : 18/08/2015
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