A1 Refereed original research article in a scientific journal
IMPACT OF CLIMATE CHANGE ON FUTURE DISCHARGES AND FLOW CHARACTERISTICS OF THE TANA RIVER, SUB-ARCTIC NORTHERN FENNOSCANDIA
Authors: Lotsari E, Veijalainen N, Alho P, Kayhko J
Publisher: WILEY-BLACKWELL
Publication year: 2010
Journal: Geografiska Annaler: Series A, Physical Geography
Journal name in source: GEOGRAFISKA ANNALER SERIES A-PHYSICAL GEOGRAPHY
Journal acronym: GEOGR ANN A
Number in series: 2
Volume: 92A
Issue: 2
First page : 263
Last page: 284
Number of pages: 22
ISSN: 0435-3676
DOI: https://doi.org/10.1111/j.1468-0459.2010.00394.x(external)
Abstract
Compared to the present, in most simulations, both HQ1/250a and HQ1/2a flood discharges diminished, with spring floods occurring earlier also. Although the relative reduction in flow characteristics (velocities, bed shear stresses and stream powers per unit area) was more notable in 1/2a compared to 1/250a floods, the discharge peaks of the former would theoretically still be able to transport the fine sediments that form the river bed. Based on most of the climate scenarios, autumnal floods become more frequent in the future and hence, their role in sediment transport may become more significant compared to the present-day situation.
Compared to the present, in most simulations, both HQ1/250a and HQ1/2a flood discharges diminished, with spring floods occurring earlier also. Although the relative reduction in flow characteristics (velocities, bed shear stresses and stream powers per unit area) was more notable in 1/2a compared to 1/250a floods, the discharge peaks of the former would theoretically still be able to transport the fine sediments that form the river bed. Based on most of the climate scenarios, autumnal floods become more frequent in the future and hence, their role in sediment transport may become more significant compared to the present-day situation.
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