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Calving at Ryder Glacier, Northern Greenland
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2021 (Engelska)Ingår i: Journal of Geophysical Research - Earth Surface, ISSN 2169-9003, E-ISSN 2169-9011, Vol. 126, nr 4Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Recent evidence has shown increasing mass loss from the Greenland ice sheet, with a general trend of accelerated mass losses extending northwards. However, different glaciers have been shown to respond differently to similar external forcings, constituting a problem for extrapolating and upscaling data. Specifically, whilst some outlet glaciers have accelerated, thinned, and retreated in response to atmospheric and oceanic warming, the behavior of other marine terminating glaciers appears to be less sensitive to climate forcing. Ryder glacier, for which only a few studies have been conducted, is located in North Greenland and terminates with a floating ice tongue in Sherard Osborn Fjord. The persistence or disintegration of floating ice tongues has impacts on glacier dynamics and stability, with ramifications beyond, including sea level rise. This study focuses on understanding the controls on calving and frontal ablation of the Ryder glacier through the use of time-lapse imagery and satellite data. The results suggest that Ryder glacier has behaved independently of climate forcing during recent decades, with fjord geometry exerting a first order control on its calving.

Ort, förlag, år, upplaga, sidor
John Wiley & Sons, Ltd , 2021. Vol. 126, nr 4
Nyckelord [en]
calving, Greenland, ice-ocean interactions
Nationell ämneskategori
Geovetenskap och miljövetenskap
Forskningsämne
SWEDARCTIC 2019, SWEDARCTIC, Ryder 2019
Identifikatorer
URN: urn:nbn:se:polar:diva-8664DOI: 10.1029/2020JF005872OAI: oai:DiVA.org:polar-8664DiVA, id: diva2:1548097
Tillgänglig från: 2021-04-29 Skapad: 2021-04-29 Senast uppdaterad: 2021-04-29

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