Detailed Information on Publication Record
2024
Quantifying sediment sources, pathways, and controls on fluvial transport dynamics on James Ross Island, Antarctica
STRINGER, Christopher D., John F. BOYLE, Filip HRBÁČEK, Kamil LÁSKA, Ondřej NEDĚLČEV et. al.Basic information
Original name
Quantifying sediment sources, pathways, and controls on fluvial transport dynamics on James Ross Island, Antarctica
Authors
STRINGER, Christopher D., John F. BOYLE, Filip HRBÁČEK (203 Czech Republic, belonging to the institution), Kamil LÁSKA (203 Czech Republic, belonging to the institution), Ondřej NEDĚLČEV, Jan KAVAN (203 Czech Republic), Michaela KŇAŽKOVÁ (703 Slovakia, belonging to the institution), Jonathan L. CARRIVICK, Duncan J. QUINCEY and Daniel NÝVLT (203 Czech Republic, belonging to the institution)
Edition
Journal of Hydrology, Elsevier, 2024, 0022-1694
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10500 1.5. Earth and related environmental sciences
Country of publisher
Netherlands
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 6.400 in 2022
Organization unit
Faculty of Science
UT WoS
001235009100001
Keywords in English
Antarctica; Fluvial sediment; Bedload provenance; Proglacial rivers
Tags
Tags
International impact, Reviewed
Změněno: 16/7/2024 10:27, Mgr. Marie Šípková, DiS.
Abstract
V originále
Proglacial regions are enlarging across the Antarctic Peninsula as glaciers recede in a warming climate. However, despite the increasing importance of proglacial regions as sediment sources within cold environments, very few studies have considered fluvial sediment dynamics in polar settings and spatio-temporal variability in sediment delivery to the oceans has yet to be unravelled. In this study, we show how air temperature, precipitation, and ground conditions combine to control sediment loads in two catchments on James Ross Island, Antarctica. We estimate that the sediment load for the Bohemian Stream and Algal Stream over the 50 day study period, the average sediment load was 1.18 ± 0.63 t km−2 d−1 and 1.73 ± 1.02 t km−2 d−1, respectively. Both catchments show some sensitivity to changes in precipitation and air temperature, but the Algal catchment also shows some sensitivity to active layer thaw. The downstream changes in sediment provenance are controlled by underlying lithology, while differences in sediment load peaks between the two catchments appear to be primarily due to differing glacier and snowfield coverage. This identification of the controls on sediment load in this sub-polar environment provides insight into how other fluvial systems across the Antarctic Peninsula could respond as glaciers recede in a warming climate.
Links
GA20-20240S, research and development project |
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VAN 2022, interní kód MU |
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VAN 2023, interní kód MU |
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