Results 81 to 90 of about 5,053 (213)

Tidewater glacier response to individual calving events

Journal of Glaciology, 2022
Tidewater glaciers have been observed to experience instantaneous, stepwise increases in velocity during iceberg-calving events due to a loss of resistive stresses.
Jason M. Amundson, Martin Truffer, Thomas Zwinger   +2 more
doaj   +1 more source

Seabed corrugations beneath an Antarctic ice shelf revealed by autonomous underwater vehicle survey: Origin and implications for the history of Pine Island Glacier [PDF]

, 2013
Ice shelves are critical features in the debate about West Antarctic ice sheet change and sea level rise, both because they limit ice discharge and because they are sensitive to change in the surrounding ocean.
Dutrieux, Pierre, Graham, Alastair, Greenwood, Sarah L., Gyllencreutz, Richard, Jenkins, Adrian, Larter, Robert D., Nitsche, Frank O., Vaughan, David G.   +7 more
core   +4 more sources

Serial and Parallel Testing Strategies for Johne's Disease: Effects on Milk Production Traits and Milk Income on New Zealand Dairy Cattle

New Zealand Journal of Agricultural Research, Volume 69, Issue 2, April 2026.
The suboptimal accuracy of current diagnostic tests necessitates alternative testing strategies to improve the detection of Johne's disease. We studied parallel and serial testing strategies to quantify the association between milk production and Johne's disease status. For this, two commercial Johne's disease Enzyme‐Linked Immunosorbent Assay, ELISAs,
Venkatesh K. M., Nicolas Lopez‐Villalobos, Sandeep K. Gupta, Garry B. Udy, Richard Laven, Venkata Sayoji Rao Dukkipati   +5 more
wiley   +1 more source

Larsen C Ice Shelf in the Western Weddell Sea is a Hotspot for Export Production in the Antarctic Ocean

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 4, April 2026.
Abstract The Southern Ocean accounts for >30% of the global ocean CO2 sink as a result of its solubility and biological pumps. To investigate the biological pump near Larsen C Ice Shelf (LCIS) in the Southern Ocean's western Weddell Sea, we measured the concentrations and nitrogen isotope ratios of nitrate, ammonium, and particulate organic nitrogen ...
J. Mirkin, J. Granger, R. F. Flynn, A. G. West, S. Smith, M. N. Mathuri, K. E. Altieri, S. E. Fawcett   +7 more
wiley   +1 more source

Calving laws and where to find them

Journal of Glaciology
Calving from tidewater glaciers and ice shelves is an important component of global mass balance and may contribute significantly to future sea-level rise.
Douglas I. Benn, Iain Wheel, Poul Christoffersen, Jan Åström, Samuel James Cook, Adrian Luckman, Faezeh Nick, Nicholas Hulton, Ian Hewitt, Jeremy Bassis   +9 more
doaj   +1 more source

Glacier monitoring using real-aperture 94 GHz radar

Annals of Glaciology, 2022
Close-range sensors are employed to observe glaciological processes that operate over short timescales (e.g. iceberg calving, glacial lake outburst floods, diurnal surface melting).
William D. Harcourt, Duncan A. Robertson, David G. Macfarlane, Brice R. Rea, Matteo Spagnolo, Douglas I. Benn, Mike R. James   +6 more
doaj   +1 more source

Journey of an Arctic ice island [PDF]

, 2016
In August 2010, a 253 km2 ice island calved from the floating glacial tongue of Petermann Glacier in Northwest Greenland. Petermann Ice Island (PII)-B, a large fragment of this original ice island, is the most intensively observed ice island in recent ...
Abrahamsen, E. Povl, Bates, Richard, Church, Ian, Crawford, Anna J., Nicholls, Keith W., Stern, Alon, Wadhams, Peter, Wagner, Till J.W.   +7 more
core   +1 more source

Atmospheric Teleconnections as Potential Drivers of Ross Ice Shelf Basal Melt

Journal of Geophysical Research: Oceans, Volume 131, Issue 4, April 2026.
Abstract Understanding the processes that regulate basal melt variability beneath Antarctic cold‐cavity ice shelves remains a key challenge for constraining future ice‐sheet mass loss. By linking melt variability directly to the mixing ratios of water masses entering the ice‐shelf cavity over 1993–2018, Pochini et al.
Yingpu Xiahou
wiley   +1 more source

Dynamic jamming of iceberg-choked fjords [PDF]

, 2014
We investigate the dynamics of ice mélange by analyzing rapid motion recorded by a time-lapse camera and terrestrial radar during several calving events that occurred at Jakobshavn Isbræ, Greenland. During calving events (1) the kinetic energy of the ice
, Amundson, Amundson, Aurenhammer, Burton, Burton, Cassotto, Cates, Dixon, Foga, Geirsdóttir, Howat, Ivo R. Peters, Jakobsson, James, Jason M. Amundson, Johnson, Joughin, Joughin, Kristopher N. Darnell, Liu, Liu, Liu, MacAyeal, Majmudar, Mark Fahnestock, Martin Truffer, Peters, Reeh, Reichhardt, Ryan Cassotto, Seale, Sohn, Sundal, Thomas, Waitukaitis, Waitukaitis, Walter, Wendy W. Zhang, Werner   +39 more
core   +2 more sources

Simulating iceberg calving

Understanding the physics of iceberg calving is a holy grail problem of glaciology. Progress on this problem has been slow in part because simulating any system with an evolving geometry is a major challenge. We have developed new approaches to simulating glacier flow with evolving termini, including both iceberg calving and the advance and retreat of ...
MAURER, JONATHAN, Shapero, Daniel
openaire   +1 more source