Results 1 to 10 of about 24,049 (264)

Antarctic Seabed Assemblages in an Ice-Shelf-Adjacent Polynya, Western Weddell Sea [PDF]

open access: yesBiology, 2022
Ice shelves cover ~1.6 million km2 of the Antarctic continental shelf and are sensitive indicators of climate change. With ice-shelf retreat, aphotic marine environments transform into new open-water spaces of photo-induced primary production and ...
Bétina A. V. Frinault   +8 more
doaj   +2 more sources

Ice-shelf – ocean interactions at Fimbul Ice Shelf, Antarctica from oxygen isotope ratio measurements [PDF]

open access: yesOcean Science, 2008
Melt water from the floating ice shelves at the margins of the southeastern Weddell Sea makes a significant contribution to the fresh water budget of the region.
K. W. Nicholls   +2 more
doaj   +8 more sources

OBSERVATIONS OF CONTINUOUS INSTABILITY FOR SCAR INLET ICE SHELF, ANTARCTIC PENINSULA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021
Observation of the evolving instability of ice shelves plays a very important role in global change research. Following the suddenly large-scale collapse of the Larsen B Ice Shelf in the Antarctic Peninsula in 2002, the evolving instability for its ...
Y. Li   +5 more
doaj   +1 more source

Widespread slowdown in thinning rates of West Antarctic ice shelves [PDF]

open access: yesThe Cryosphere, 2023
Antarctica's floating ice shelves modulate discharge of grounded ice into the ocean by providing a backstress. Ice shelf thinning and grounding line retreat have reduced this backstress, driving rapid drawdown of key unstable areas of the Antarctic Ice ...
F. S. Paolo   +6 more
doaj   +1 more source

Shear-margin melting causes stronger transient ice discharge than ice-stream melting in idealized simulations [PDF]

open access: yesThe Cryosphere, 2022
Basal ice-shelf melting is the key driver of Antarctica's increasing sea-level contribution. In diminishing the buttressing force of the ice shelves that fringe the ice sheet, the melting increases the ice discharge into the ocean.
J. Feldmann   +7 more
doaj   +1 more source

Detection of Surface Crevasses over Antarctic Ice Shelves Using SAR Imagery and Deep Learning Method

open access: yesRemote Sensing, 2022
Crevasses are formed by glacier movement and the stresses within glacier ice. Knowledge of the crevasses’ distribution is critical for understanding the glacier and ice shelf stability. In this study, we propose an automated crevasse extraction framework
Jingjing Zhao   +4 more
doaj   +1 more source

MOSAICKING VERY-HIGH-RESOLUTION HELICOPTER-BORNE IMAGES ACQUIRED OVER DRIFTING ARCTIC SEA ICE USING COTS SENSORS [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
In order to observe and record conditions of the sea ice efficiently and specifically during in-situ investigation with the support of icebreaker research vessel (IBRV), the very-high-resolution (VHR) imaging systems have been used in recent past.
C. U. Hyun, H. C. Kim
doaj   +1 more source

Can rifts alter ocean dynamics beneath ice shelves? [PDF]

open access: yesThe Cryosphere, 2023
Land ice discharge from the Antarctic continent into the ocean is restrained by ice shelves, floating extensions of grounded ice that buttress the glacier outflow.
M. Poinelli   +6 more
doaj   +1 more source

Explicit representation and parametrised impacts of under ice shelf seas in the z coordinate ocean model NEMO 3.6 [PDF]

open access: yesGeoscientific Model Development, 2017
Ice-shelf–ocean interactions are a major source of freshwater on the Antarctic continental shelf and have a strong impact on ocean properties, ocean circulation and sea ice.
P. Mathiot   +4 more
doaj   +1 more source

The distribution and evolution of surface fractures on pan-Antarctic ice shelves

open access: yesInternational Journal of Digital Earth, 2023
Surface fractures have a great impact on ice shelf stability in Antarctica and can be considered precursors of ice shelf calving. However, our understanding of the spatial distribution and temporal evolution of surface fractures on the Antarctic ice ...
Ao Pang   +5 more
doaj   +1 more source

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