Zobrazeno 1 - 10
of 262
pro vyhledávání: '"basal melt"'
Publikováno v:
Geo-spatial Information Science, Vol 27, Iss 6, Pp 2268-2283 (2024)
The stability of the Larsen C Ice Shelf (LIS) has been widely studied due to its surface lowering, calving, and warming. In this study, we combined multisource remote-sensing data, calculated the long-term series of surface elevation above basal chan
Externí odkaz:
https://doaj.org/article/aabbe8c429f542d1bd6766bfdc96be8f
Publikováno v:
Geophysical Research Letters, Vol 51, Iss 12, Pp n/a-n/a (2024)
Abstract Understanding grounding line dynamics is critical for projecting glacier evolution and sea level rise. Observations from satellite radar interferometry reveal rapid grounding line migration forced by oceanic tides that are several kilometers
Externí odkaz:
https://doaj.org/article/239fe0ae0e3d4e0f9ecc1feac61fd09c
Autor:
Aleah Sommers, Colin Meyer, Mathieu Morlighem, Harihar Rajaram, Kristin Poinar, Winnie Chu, Jessica Mejia
Publikováno v:
Journal of Glaciology, Vol 69, Pp 1556-1568 (2023)
Water pressure beneath glaciers influences ice velocity. Subglacial hydrology models are helpful for gaining insight into basal conditions, but models depend on unconstrained parameters, and a current challenge is reproducing elevated water pressures
Externí odkaz:
https://doaj.org/article/34e2fff669c340e78d4aa9af0cef9668
Autor:
Nanna B. Karlsson, Kenneth D. Mankoff, Anne M. Solgaard, Signe H. Larsen, Penelope R. How, Robert S. Fausto, Louise S. Sørensen
Publikováno v:
GEUS Bulletin, Vol 53, Pp 1-8 (2023)
The loss of mass from the Greenland ice sheet causes an increasing influx of freshwater to the Greenlandic fjords and the oceans. Freshwater fluxes from marine-terminating glaciers are important to understand fjord circulation and ecosystem dynamics.
Externí odkaz:
https://doaj.org/article/2cb911f0e02f491595c5917ebece35db
Publikováno v:
Frontiers in Marine Science, Vol 10 (2023)
Mass loss from ice shelves occurs through ocean-driven melting regulated by dynamic and thermodynamic processes in sub-ice shelf cavities. However, the understanding of these oceanic processes is quite limited because of the scant observations under
Externí odkaz:
https://doaj.org/article/5f3bab40abf7408d814ae414359e9b1c
Autor:
Irena Vaňková, J. Paul Winberry, Sue Cook, Keith W. Nicholls, Chad A. Greene, Benjamin K. Galton‐Fenzi
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 10, Pp n/a-n/a (2023)
Abstract Totten Glacier is a fast‐moving East Antarctic outlet with the potential for significant future sea‐level contributions. We deployed four autonomous phase‐sensitive radars on its ice shelf to monitor ice‐ocean interactions near its g
Externí odkaz:
https://doaj.org/article/87fdaa9d1fd544ce84c8e2e2992e3b73
Autor:
Esmee M. vanWijk, Stephen R. Rintoul, Luke O. Wallace, Natalia Ribeiro, Laura Herraiz‐Borreguero
Publikováno v:
Geophysical Research Letters, Vol 49, Iss 18, Pp n/a-n/a (2022)
Abstract Denman Glacier, which drains a marine‐based sector of the East Antarctic Ice Sheet with an ice volume equivalent to 1.5 m of global sea level rise, has accelerated and undergone grounding line retreat in recent decades. A deep trough and r
Externí odkaz:
https://doaj.org/article/9d9812f1864040e49f477917de208094
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 14, Pp 5091-5099 (2021)
Ice shelvesbuttress the fast-flowing glaciers draining ice sheets, so changes in the ice shelves may alter the buttressing effect and the discharge of grounded ice, therefore influencing sea level. Basal melting of the ice shelves would reduce their
Externí odkaz:
https://doaj.org/article/9052912fd17c45fcad3692ba19ba34d9
Autor:
Neil Ross, Martin Siegert
Publikováno v:
Annals of Glaciology, Vol 61, Pp 198-205 (2020)
Deep-water ‘stable’ subglacial lakes likely contain microbial life adapted in isolation to extreme environmental conditions. How water is supplied into a subglacial lake, and how water outflows, is important for understanding these conditions. Is
Externí odkaz:
https://doaj.org/article/9bbf3770b4b146dbbee6eaa46c65282a