Proglacial lake evolution coincident with glacier dynamics in the frontal zone of Kvíárjökull, South-East Iceland
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F24%3A00135816" target="_blank" >RIV/00216224:14310/24:00135816 - isvavai.cz</a>
Alternative codes found
RIV/60460709:41330/24:100627 RIV/60076658:12310/24:43908554
Result on the web
<a href="https://onlinelibrary.wiley.com/doi/10.1002/esp.5781" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1002/esp.5781</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/esp.5781" target="_blank" >10.1002/esp.5781</a>
Alternative languages
Result language
angličtina
Original language name
Proglacial lake evolution coincident with glacier dynamics in the frontal zone of Kvíárjökull, South-East Iceland
Original language description
The termini of Icelandic glaciers are highly dynamic environments. Pronounced changes in frontal ablation in recent years have consequently changed ice dynamics. In this study, we reveal the inter-seasonal dynamics of the Kvíárjökull ablation zone and proglacial zone using ArcticDEM and Sentinel-2 images acquired between 2011 and 2021 and intra-seasonal dynamics with repeated UAV surveys during summer 2021. Average glacier surface velocity in the ablation zone ranged from 51 m year−1 in 2015 up to 199 m year−1 in 2018, with maxima within the axial zone of the glacier and minima on the glacier edges. Coincidentally, and in accordance with glacier retreat/advance, the ice-marginal proglacial lake fluctuated in its area, and we interpret that it was also a key factor in the development of the glacier terminus morphology. A complex spatial pattern of glacier surface elevation changes, including thickening in the frontal true left margin of the terminus, is interpreted to be due to variable subglacial topography, relatively fast ice flow from the accumulation zone and an insulating effect of glacier surface debris cover. In contrast, the true right (southern) part of the glacier terminus experienced thinning and retreat/disintegration also during the 2021 summer season, which we attribute to enhanced frontal ablation connected to the intrusion of lake water into the crevassed glacier terminus. Overall, this study suggests that where glaciers are developing ice-marginal lakes complex patterns of glacier dynamics and mass loss can be expected, which will confound understanding of the short-term evolution of these environments.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10508 - Physical geography
Result continuities
Project
<a href="/en/project/GN22-20621O" target="_blank" >GN22-20621O: Linking the Quaternary and present geomorphic processes in landsystems adjacent to high-latitude glaciers and ice sheets</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Earth Surface Processes and Landforms
ISSN
0197-9337
e-ISSN
1096-9837
Volume of the periodical
49
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
16
Pages from-to
1487-1502
UT code for WoS article
001153604100001
EID of the result in the Scopus database
2-s2.0-85184191965