Proglacial lake evolution coincident with glacier dynamics in
the frontal zone of Kvíárjökull, South-East Iceland

J 2024

Proglacial lake evolution coincident with glacier dynamics in the frontal zone of Kvíárjökull, South-East Iceland

KAVAN, Jan; Radim STUCHLÍK; Jonathan L. CARRIVICK; Martin HANÁČEK; Christopher D. STRINGER et al.

Základní údaje

Originální název

Proglacial lake evolution coincident with glacier dynamics in the frontal zone of Kvíárjökull, South-East Iceland

Autoři

KAVAN, Jan; Radim STUCHLÍK; Jonathan L. CARRIVICK; Martin HANÁČEK; Christopher D. STRINGER; Matěj ROMAN; Jakub HOLUŠA; Pavla DAGSSON-WALDHAUSEROVA; Kamil LÁSKA a Daniel NÝVLT

Vydání

Earth Surface Processes and Landforms, Wiley, 2024, 0197-9337

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10508 Physical geography

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 2.700

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/24:00135816

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

ablation zone; glacial lakes; ice flow velocity; surface elevation changes

Štítky

14315030, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 22. 1. 2025 13:26, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

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.

Návaznosti

EHP-CZ-ICP-1-003, interní kód MU

Název: Cool Science – training course in polar research

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Cool Science – training course in polar research, Projekty institucionální spolupráce

GN22-20621O, projekt VaV

Název: Souvislost kvartérních a současných geomorfologických procesů v geosystémech přiléhajících k polárním ledovcům a ledovcovým štítům

Investor: Grantová agentura ČR, Souvislost kvartérních a současných geomorfologických procesů v geosystémech přiléhajících k polárním ledovcům a ledovcovým štítům, Outgoing

MUNI/A/1393/2021, interní kód MU

Název: Integrovaný geografický výzkum dynamiky přírodních a společenských procesů (Akronym: IGEODYN)

Investor: Masarykova univerzita, Integrovaný geografický výzkum dynamiky přírodních a společenských procesů

MUNI/G/1540/2019, interní kód MU

Název: ARCTIC Centre for Human-to-Environment Oriented Studies: Impact of Climate Change and Human Activities in the Arctic (Akronym: ARCTOS MU)

Investor: Masarykova univerzita, ARCTIC Centre for Human-to-Environment Oriented Studies: Impact of Climate Change and Human Activities in the Arctic, INTERDISCIPLINARY - Mezioborové výzkumné projekty

Citovat

KAVAN, Jan; Radim STUCHLÍK; Jonathan L. CARRIVICK; Martin HANÁČEK; Christopher D. STRINGER; Matěj ROMAN; Jakub HOLUŠA; Pavla DAGSSON-WALDHAUSEROVA; Kamil LÁSKA a Daniel NÝVLT. Proglacial lake evolution coincident with glacier dynamics in the frontal zone of Kvíárjökull, South-East Iceland. Earth Surface Processes and Landforms. Wiley, 2024, roč. 49, č. 5, s. 1487-1502. ISSN 0197-9337. Dostupné z: https://doi.org/10.1002/esp.5781.

@article{2394717,
   author = {Kavan, Jan and Stuchlík, Radim and Carrivick, Jonathan L. and Hanáček, Martin and Stringer, Christopher D. and Roman, Matěj and Holuša, Jakub and DagssonandWaldhauserova, Pavla and Láska, Kamil and Nývlt, Daniel},
   article_number = {5},
   doi = {https://doi.org/10.1002/esp.5781},
   keywords = {ablation zone; glacial lakes; ice flow velocity; surface elevation changes},
   language = {eng},
   issn = {0197-9337},
   journal = {Earth Surface Processes and Landforms},
   title = {Proglacial lake evolution coincident with glacier dynamics in the frontal zone of Kvíárjökull, South-East Iceland},
   url = {https://onlinelibrary.wiley.com/doi/10.1002/esp.5781},
   volume = {49},
   year = {2024}
}

TY  - JOUR
ID  - 2394717
AU  - Kavan, Jan - Stuchlík, Radim - Carrivick, Jonathan L. - Hanáček, Martin - Stringer, Christopher D. - Roman, Matěj - Holuša, Jakub - Dagsson-Waldhauserova, Pavla - Láska, Kamil - Nývlt, Daniel
PY  - 2024
TI  - Proglacial lake evolution coincident with glacier dynamics in the frontal zone of Kvíárjökull, South-East Iceland
JF  - Earth Surface Processes and Landforms
VL  - 49
IS  - 5
SP  - 1487-1502
EP  - 1487-1502
PB  - Wiley
SN  - 01979337
KW  - ablation zone
KW  - glacial lakes
KW  - ice flow velocity
KW  - surface elevation changes
UR  - https://onlinelibrary.wiley.com/doi/10.1002/esp.5781
N2  - 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.
ER  -

KAVAN, Jan; Radim STUCHLÍK; Jonathan L. CARRIVICK; Martin HANÁČEK; Christopher D. STRINGER; Matěj ROMAN; Jakub HOLUŠA; Pavla DAGSSON-WALDHAUSEROVA; Kamil LÁSKA a Daniel NÝVLT. Proglacial lake evolution coincident with glacier dynamics in the frontal zone of Kvíárjökull, South-East Iceland. \textit{Earth Surface Processes and Landforms}. Wiley, 2024, roč.~49, č.~5, s.~1487-1502. ISSN~0197-9337. Dostupné z: https://doi.org/10.1002/esp.5781.

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