Results 31 to 40 of about 4,993 (205)

Surveying a Floating Iceberg With the USV SEADRAGON

Frontiers in Marine Science, 2021
The calving, drifting, and melting of icebergs has local, regional, and global implications. Besides the impacts to local ecosystems due to changes in seawater salinity and temperature, the freshwater influx and transport can have significant regional ...
Mingxi Zhou, Ralf Bachmayer, Brad DeYoung   +2 more
doaj   +1 more source

Ice shelf calving due to shear stresses: observing the response of Brunt Ice Shelf and Halloween Crack to iceberg calving using ICESat-2 laser altimetry, satellite imagery, and ice flow models [PDF]

The Cryosphere
Full-thickness ice shelf fractures, known as rifts, create tabular icebergs that can reduce ice shelf extent and thereby jeopardize overall marine ice sheet stability.
A. Morris, B. P. Lipovsky, C. C. Walker, O. J. Marsh   +3 more
doaj   +1 more source

Semi-automated open water iceberg detection from Landsat applied to Disko Bay, West Greenland

Journal of Glaciology, 2019
Changes in Greenland's marine-terminating outlet glaciers have led to changes in the flux of icebergs into Greenland's coastal waters, yet icebergs remain a relatively understudied component of the ice-ocean system.
JESSICA SCHEICK, ELLYN M. ENDERLIN, GORDON HAMILTON   +2 more
doaj   +1 more source

Viscous and elastic buoyancy stresses as drivers of ice-shelf calving

Journal of Glaciology, 2020
The Antarctic Ice Sheet loses mass via its ice shelves predominantly through two processes: basal melting and iceberg calving. Iceberg calving is episodic and infrequent, and not well parameterized in ice-sheet models.
Cyrille Mosbeux, Till J. W. Wagner, Maya K. Becker, Helen A. Fricker   +3 more
doaj   +1 more source

Intermittent structural weakening and acceleration of the Thwaites Glacier Tongue between 2000 and 2018 [PDF]

, 2020
Evolving conditions at the terminus of Thwaites Glacier will be important in determining the rate of its future sea-level contribution over the coming decades.
Gudmundsson, Hilmar, Jamieson, S. S. R., Jenkins, Adrian, Jordan, Jim, Miles, B. W. J., Stokes, C. R.   +5 more
core   +6 more sources

Observational constraints on the sensitivity of two calving glaciers to external forcings

Journal of Glaciology, 2023
Future mass loss projections of the Greenland ice sheet require understanding of the processes at a glacier terminus, especially of iceberg calving.
Andrea Kneib-Walter, Martin P. Lüthi, Martin Funk, Guillaume Jouvet, Andreas Vieli   +4 more
doaj   +1 more source

A Law for Small Scale, Continuous Calving [PDF]

, 2014
Ice shelves are formed by the viscous flow of inland ice into the ocean, they are floating and loosing mass by iceberg calving. There are two different kinds of calving: large tabular icebergs detach as singular events in time, and small scale calving ...
Christmann, Julia, Humbert, Angelika, Müller, Ralf   +2 more
core   +1 more source

Weddell Sea iceberg drift: Five years of observations [PDF]

, 2006
Since 1999, 52 icebergs have been tagged with GPS buoys in the Weddell Seato enable monitoring of their position. The chosen icebergs were of small tomedium size, with a few icebergs larger than 10 km associatedwith the calving of icebergs A38 and A43 ...
Aoki, Beckmann, Budd, Byrd, E. Fahrbach, Fahrbach, G. Rohardt, GEBCO, Gladstone, Grosfeld, Grosfeld, Gutt, H. H. Hellmer, Harms, Hellmer, Hellmer, Jacobs, Kaleschke, Kirwan, Kottmeier, Lichey, Limbert, M. P. Schodlok, Massom, Molinari, Morgan, Nøst, Orheim, Robertson, Saucier, Schmitt, Schodlok, Schodlok, Sodhi, Swithinbank, Tchernia, Thoma, Thomas, Thorndike, Vihma, Vinje, Wadhams, Weeks, White, Yaremchuk   +44 more
core   +1 more source

Monitoring Greenland ice sheet buoyancy-driven calving discharge using glacial earthquakes

Annals of Glaciology, 2019
Since the 2000s, Greenland ice sheet mass loss has been accelerating, followed by increasing numbers of glacial earthquakes (GEs) at near-grounded glaciers. GEs are caused by calving of km-scale icebergs which capsize against the terminus. Seismic record
Amandine Sergeant, Anne Mangeney, Vladislav A. Yastrebov, Fabian Walter, Jean-Paul Montagner, Olivier Castelnau, Eléonore Stutzmann, Pauline Bonnet, Velotioana Jean-Luc Ralaiarisoa, Suzanne Bevan, Adrian Luckman   +10 more
doaj   +1 more source

Distinguishing subaerial and submarine calving with underwater noise

Journal of Glaciology, 2022
Iceberg calving is one of the major mechanisms of ice loss from tidewater glaciers and ice sheets, but obtaining accurate estimates of ice discharge that are both continuous and accurate is a challenging task.
Oskar Glowacki
doaj   +1 more source