Results 91 to 100 of about 5,175 (233)
Southern Ocean warming: Increase in basal melting and grounded ice loss [PDF]
We apply a global finite element sea ice/ice shelf/ocean model (FESOM) to the Antarctic marginal seas to analyze projections of ice shelf basal melting in a warmer climate.
Determann, Jürgen +2 more
core
Dynamic jamming of iceberg-choked fjords [PDF]
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
+39 more
core +2 more sources
Abstract We investigate implications of the recent change in basal melt rates from 93 Antarctic ice shelves from the 1990s to 2006–2016 (223 Gt yr−1 on average) on Southern Ocean climate using a fully coupled model. The most prominent response is significant increased sea ice coverage in the northern Amundsen Sea and decreased sea ice coverage in the ...
Zhu Zhu +7 more
wiley +1 more source
The 'footloose' mechanism: iceberg decay from hydrostatic stresses [PDF]
We study a mechanism of iceberg breakup that may act together with the recognized melt and wave-induced decay processes. Our proposal is based on observations from a recent field experiment on a large ice island in Baffin Bay, East Canada.
Alley +41 more
core +4 more sources
ABSTRACT The sediment signature of glacial erosion products exported from Hudson Strait to the Labrador Sea during Hudson Strait Heinrich (HS‐H) events is evaluated using four distinct proxies: paired δ18Ο and δ13C data on the carbonate fraction, εNd and U–Pb isotopes in the silicate fraction, the mineral composition of the <2 mm bulk sediment fraction,
John T. Andrews +3 more
wiley +1 more source
Iceberg jam floods in Icelandic proglacial rivers: testing the self-organized criticality hypothesis [PDF]
In this paper, we describe a fluvial marginal process associated with the formation of iceberg jams in Icelandic proglacial lakes. The floods triggered by the release of these iceberg jams have implications for the geomorphic evolution of the proglacial ...
Cossart, Etienne +3 more
core +5 more sources
Assessing potential impacts of black bear predation on neonatal mortality in boreal caribou
We used simulations to show that even if caribou give birth in areas with the least chance of encountering a black bear, there are so many bears on the landscape that predation risk for caribou calves can still be quite high. Bear densities used in our simulation were typical for the boreal forest.
Liam G. Horne +6 more
wiley +1 more source
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
Buoyancy Feedbacks on Wave‐Induced Melting of Icebergs
Abstract Icebergs play an important role in the climate system through their temporally and spatially distributed injection of freshwater into the ocean. Waterline melting from surface wave action accounts for a substantial amount of iceberg mass loss and drives iceberg fragmentation, yet it is poorly constrained and lacks physics‐based model ...
M. Mamer, A. A. Robel
wiley +1 more source
Abstract Constraining how faunal communities vary over time and space in response to environmental change has long been a major goal of paleoecologists. Among fossilized organisms, few yield a better and greater detailed record than foraminifera to understand past marine conditions.
R. Fentimen, A. Sturbois, M. Mojtahid
wiley +1 more source

