Glacier surge as a trigger for the fastest delta growth in the Arctic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F24%3A00138007" target="_blank" >RIV/00216224:14310/24:00138007 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/24:43908553

Výsledek na webu

<a href="https://www.nature.com/articles/s43247-024-01877-8" target="_blank" >https://www.nature.com/articles/s43247-024-01877-8</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s43247-024-01877-8" target="_blank" >10.1038/s43247-024-01877-8</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Glacier surge as a trigger for the fastest delta growth in the Arctic

Popis výsledku v původním jazyce

The widespread retreat of Svalbard glaciers has been frequently interrupted by short-lived surge advances. In the case of marine-terminating glaciers this is often expressed in the remodelling of coastal zones. Here, we analyzed the coastal zone changes in front of the recently surging Recherchebreen. The glacier advanced ca 1200 m since 2018 and suddenly stopped in June 2020 followed by the rapid formation of a delta system in front of its subglacial meltwater outlet. The delta advanced by ca 450 m with probably the fastest progradation rate ever detected in the Arctic region (ca 7 m/day). The synchroneity of the final slow-down of the glacier with the delta building indicates that this event records the release of stored water and sediments from beneath the glacier and thus provides direct evidence of drainage reorganisation at the termination of a surge. Such behaviour is likely common among Svalbard surging glaciers, but it only rarely leaves any direct geomorphic evidence.

Název v anglickém jazyce

Glacier surge as a trigger for the fastest delta growth in the Arctic

Popis výsledku anglicky

The widespread retreat of Svalbard glaciers has been frequently interrupted by short-lived surge advances. In the case of marine-terminating glaciers this is often expressed in the remodelling of coastal zones. Here, we analyzed the coastal zone changes in front of the recently surging Recherchebreen. The glacier advanced ca 1200 m since 2018 and suddenly stopped in June 2020 followed by the rapid formation of a delta system in front of its subglacial meltwater outlet. The delta advanced by ca 450 m with probably the fastest progradation rate ever detected in the Arctic region (ca 7 m/day). The synchroneity of the final slow-down of the glacier with the delta building indicates that this event records the release of stored water and sediments from beneath the glacier and thus provides direct evidence of drainage reorganisation at the termination of a surge. Such behaviour is likely common among Svalbard surging glaciers, but it only rarely leaves any direct geomorphic evidence.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10505 - Geology

Projekt

<a href="/cs/project/GN22-20621O" target="_blank" >GN22-20621O: Souvislost kvartérních a současných geomorfologických procesů v geosystémech přiléhajících k polárním ledovcům a ledovcovým štítům</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Communications Earth &amp; Environment

ISSN

2662-4435

e-ISSN

2662-4435

Svazek periodika

5

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

1-8

Kód UT WoS článku

001353787400001

EID výsledku v databázi Scopus

2-s2.0-85209228528