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THE IMPACT OF LANDSCAPE STRUCTURE OF CATCHMENT AREA ON LAKE HYDROLOGY

Inga Grīnfelde

First published: 2019-06-20https://doi.org/10.5593/sgem2019/3.1/s12.073View metrics

Abstract

One of the most investigated topics in hydrology, during last decades, is climate change impact on hydrological cycle. Changes in the use of land is additional factor influencing hydrological regime and watershed run-off. To understand urbanisation and climate change cumulative impact on watershed run-off, modelling of different climate change and land use scenarios would be essential. The aim of this study is to investigate how watershed run-off of the Usma Lake, located in Kurzeme region of Latvia, will respond to urbanisation and climate change using conceptual hydrological model METQ. To quantify watershed run-off changes, eighteen climate change scenarios (from very low to very high) and two linear urbanisation scenarios (low and high) analysed. Totally thirty-six climate-urban scenarios modelled, using conceptual hydrological model METQ. The results of climate-urban scenarios reviled, that extremely high watershed run-off events are more related with rain events than snow melting. The minimal watershed run-off periods become longer and with more often frequency. The urbanisation have significant impact on extreme watershed run-off values. The peaks of watershed run-off become more extreme and low watershed run-off (in some cases) are close to zero.

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  • CrossRef - Citation Indexes: 3
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Publication details

Title
THE IMPACT OF LANDSCAPE STRUCTURE OF CATCHMENT AREA ON LAKE HYDROLOGY
Authors
Inga Grīnfelde
Proceedings
SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th International Multidisciplinary Scientific GeoConference SGEM2019, Water Resources. Forest, Marine and Ocean Ecosystems
Publisher
STEF92 Technology
Year
2019
Pages
569-576
SWS Citekey
Grinfelde201912569576
ISSN
1314-2704
ISBN
978-619-7408-81-2
Language
en
Publication type
Conference Paper
Keywords
Conceptual hydrological model METQclimate changeurbanisationcumulative effect
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Number of times cited according to Crossref: 3

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