Results 1 to 10 of about 1,425,146 (251)
Ice thickness in the Northwest Passage [PDF]
Geophysical Research Letters, 2015 AbstractRecently, the feasibility of commercial shipping in the ice‐prone Northwest Passage (NWP) has attracted a lot of attention. However, very little ice thickness information actually exists. We present results of the first ever airborne electromagnetic ice thickness surveys over the NWP carried out in April and May 2011 and 2015 over first‐year ...
Stephen E L Howell
exaly +4 more sources
Theory of the Sea Ice Thickness Distribution [PDF]
Physical Review Letters, 2015 3 pages, 2 ...
Toppaladoddi, Srikanth +1 more
openaire +3 more sources
Ice velocity and thickness of the world’s glaciers
Nature Geoscience, 2022 The effect of climate change on water resources and sea-level rise is largely determined by the size of the ice reservoirs around the world and the ice thickness distribution, which remains uncertain. Here, we present a comprehensive high-resolution mapping of ice motion for 98% of the world's total glacier area during the period 2017-2018. We use this
Millan, Romain +3 more
openaire +5 more sources
On the errors involved in ice-thickness estimates II: errors in digital elevation models of ice thickness [PDF]
Journal of Glaciology, 2016 ABSTRACTThis paper is the second (Paper II) in a set of studies concerning the errors involved in the estimate of ice thickness and ice volume. Here we present a detailed analysis of the errors involved in the generation of ice-thickness DEMs constructed, most often, from GPR data, complemented by boundary data and sometimes, additional synthetic data ...
Lapazaran, J. J. +3 more
openaire +3 more sources
Ice thickness measurements by Raman scattering [PDF]
Optics Letters, 2014 A compact Raman LIDAR system with a spectrograph was used for express ice thickness measurements. The difference between the Raman spectra of ice and liquid water is employed to locate the ice-water interface while elastic scattering was used for air-ice surface detection.
Pershin, Sergey M. +4 more
openaire +3 more sources
Ice thickness determination with audio sound. [PDF]
Proceedings of Meetings on Acoustics, 2013 The objective of this study is to determine the thickness of Ice by analyzing the sound spectrum generated by dispersion of lamb waves propagating in ice. In winters when the lakes and rivers freeze, it is important to know the thickness of the ice layer before one intends to walk on it.
Anurupa Shaw, Nico F. Declercq
openaire +1 more source
Dependence of Sea Ice Yield-Curve Shape on Ice Thickness [PDF]
Journal of Physical Oceanography, 2004 Abstract In this note, the authors discuss the contribution that frictional sliding of ice floes (or floe aggregates) past each other and pressure ridging make to the plastic yield curve of sea ice. Using results from a previous study that explicitly modeled the amount of sliding and ridging that occurs for a given global strain rate, it
Wilchinsky A., Feltham D.
openaire +3 more sources
Modeling the thermodynamics of a sea ice thickness distribution: 1. Sensitivity to ice thickness resolution [PDF]
Journal of Geophysical Research: Oceans, 1997 A one‐dimensional ice thickness distribution model is presented to determine the minimum number of ice thicknesses necessary to resolve the area‐averaged annual cycles of ice thickness and turbulent fluxes. The baseline case includes 40 ice thickness categories; ice thickness and area, meltwater ponds, ice salinity and age, snow cover, and surface ...
J. L. Schramm +3 more
openaire +1 more source
Arctic Ice Cover, Ice Thickness and Tipping Points [PDF]
AMBIO, 2012 We summarize the latest results on the rapid changes that are occurring to Arctic sea ice thickness and extent, the reasons for them, and the methods being used to monitor the changing ice thickness. Arctic sea ice extent had been shrinking at a relatively modest rate of 3-4% per decade (annually averaged) but after 1996 this speeded up to 10% per ...
openaire +2 more sources
Sea-ice thickness measurement based on the dispersion of ice swell
The Journal of the Acoustical Society of America, 2012 The dispersion of flexural waves propagating in the Arctic sea ice cover is exploited in order to locally measure the ice thickness. The observed dispersion, for waves filtered in the 4–20 s period interval, at up to 4 broad-band seismometers deployed in Spring 2007 near the North Pole, is compared to a parameterized model that accounts for a complex ...
Marsan, David +3 more
openaire +5 more sources