Proglacial streams runoff dynamics in Devil´s Bay, Vega Island, Antarctica

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F23%3A00130891" target="_blank" >RIV/00216224:14310/23:00130891 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1080/02626667.2023.2195559" target="_blank" >https://doi.org/10.1080/02626667.2023.2195559</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1080/02626667.2023.2195559" target="_blank" >10.1080/02626667.2023.2195559</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Proglacial streams runoff dynamics in Devil´s Bay, Vega Island, Antarctica

Popis výsledku v původním jazyce

Increasing temperatures in Antarctica have resulted in the enlargement of proglacial regions on the Antarctic Peninsula, following glacier melt. This melt has increased river activity yet direct runoff measurements remain scarce in Antarctica, despite it acting as a proxy for glacial ablation. Here, we present discharge and water temperature data from 2013 for three streams on Vega Island and discuss their relationship with air tempera-ture. The average discharge at the largest stream was 0.523 m3s−1 with a maximum of 5.510 m3s−1 – among the highest recorded in Antarctica. The rivers continued to flow even when temperatures dropped to −7°C, indicating that a large proportion of the total runoff originated sub-glacially. This is supported by the one- day time lag between air and water temperatures. Using river discharge as a proxy, we measured 124.5 ± 14.4 mm w.e. of ablation. This indirect measurement proved an effective tool to complement classic glaciological observations.

Název v anglickém jazyce

Proglacial streams runoff dynamics in Devil´s Bay, Vega Island, Antarctica

Popis výsledku anglicky

Increasing temperatures in Antarctica have resulted in the enlargement of proglacial regions on the Antarctic Peninsula, following glacier melt. This melt has increased river activity yet direct runoff measurements remain scarce in Antarctica, despite it acting as a proxy for glacial ablation. Here, we present discharge and water temperature data from 2013 for three streams on Vega Island and discuss their relationship with air tempera-ture. The average discharge at the largest stream was 0.523 m3s−1 with a maximum of 5.510 m3s−1 – among the highest recorded in Antarctica. The rivers continued to flow even when temperatures dropped to −7°C, indicating that a large proportion of the total runoff originated sub-glacially. This is supported by the one- day time lag between air and water temperatures. Using river discharge as a proxy, we measured 124.5 ± 14.4 mm w.e. of ablation. This indirect measurement proved an effective tool to complement classic glaciological observations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10501 - Hydrology

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Hydrological Sciences Journal

ISSN

0262-6667

e-ISSN

2150-3435

Svazek periodika

68

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

967-981

Kód UT WoS článku

000980299200001

EID výsledku v databázi Scopus

2-s2.0-85158902541