Sentences with phrase «ice drift»

"Ice drift" refers to the movement of floating ice on the surface of a body of water, such as a river, lake, or ocean. It occurs when the ice is carried by wind, current, or other natural forces. Full definition
It seems like sea ice drift speed is an important parameter related to sea ice summer minimum extent and that seems quite logical.
Increased variability in ice drift is also observed in 2012 compared to 2011.
Why is sea ice drifting so much more rapidly today than before?
When the extent of the pack of sea ice drifting around the North Pole hit a remarkable low in 2007 (animation below), the resulting, and persistent, front - page thought was that the system was in a «death spiral» far more dramatic than any climate model had foreseen.
Rigor et al. (Polar Science Center, University of Washington); 5.4 Million Square Kilometers; Heuristic This estimate is based on the prior winter Arctic Oscillation (AO) conditions, and the spatial distribution of the sea ice of different ages as estimated from a Drift - age Model (DM), which combines buoy drift and retrievals of sea ice drift from satellites (Rigor and Wallace, 2004, updated).
Differences between surface winds and SLP, and vortex splitting and sea ice extent composites exhibit conditions that are unfavorable to export through Fram Strait in May, 2009; southwesterly versus southeasterly winds in the Beaufort Sea region may also limit free ice drift conditions and inhibit the acceleration evident in years exhibiting record lows in sea ice extent.
«The thinner ice drifts more quickly and can break up into smaller pieces.
The processing and dissemination of sea ice drift vectors from low - resolution imaging sensors (OSI - 405) was succesfully resumed today 4 October 2010.
Further investigation of ice thickness and free ice drift conditions, in addition to persistence of SLP maxima, will provide further insight as to whether convergence (divergence) of sea ice associated with SLP highs (lows) will give rise to increased ice retreat in the Arctic and the Beaufort Sea region in particular.
Noteworthy are maximum ice drift speeds through Fram Strait in early June, 2012 aligned with the interface between the SLP high and low regimes, observed to a lesser extent in late June of 2011.
Andrew Revkin filed stories and answered reader questions while camped on sea ice drifting near the North Pole in 2003.
«The ship and the surrounding network will drift with the natural ice drift across the polar cap towards the Atlantic, while the sea ice thickens during winter,» says the website that details the expedition.
What's more, a recent study in the Journal of Geophysical Letters found that IPCC models had low - balled the rate at which melted ice drifts off, further accelerating the collapse.
These variations in the Arctic all contribute to ice drift reaching its weakest point during the summer months.
The mr ice drift production is based on TIR data during winter and VIS data during summer, with an overlapping period in spring and autumn.
Rapid ice drift is an important factor in regional ice conditions, especially redistribution of multiyear ice into areas with high melt rates at low latitudes.
- To investigate how a more realistic representation of sea ice drift affects the simulation of freshwater mass distribution in the Arctic Ocean.
The age of sea ice drifting towards the coast explains over 50 % of the variance in summer sea ice extent (compared to less than 15 % of the variance explained by the seasonal redistribution of sea ice, and advection of heat by summer winds).
Schweiger, A. J., and J. Zhang (2015), Accuracy of short - term sea ice drift forecasts using a coupled ice - ocean model, Journal of Geophysical Research: Oceans, doi: 10.1002 / 2015jc011273.
Lukovich et al., 4.3, n / a, Heuristic Daily maps of surface winds, SLP, and nowcast ice drift data illustrate regional differences in atmospheric forcing of sea ice in 2011 and 2012.
In these high ice - loss years, they found «anticyclonic» circulation patterns — a clockwise ice drift that transports sea ice toward the Chukchi Sea between Siberia and Alaska, and toward the Fram Strait between Greenland and the island of Spitsbergen.
The shift in air pressure pattern also resulted in a change in sea ice drift directions in the Arctic.
It is interesting to note that the anticyclonic circulation in the Beaufort Sea is preceded by a SLP high on June 14th, 2012, suggesting regional differences in ice drift response to surface winds, most likely due to regional differences in ice concentration and thickness.
The video report I posted above is drawn from footage I shot five years ago, when I was lucky enough to land with an intrepid crew of scientists on the drifting, cracking, huffing, chugging sea ice drifting around the North Pole.
This wind and ice drift pattern will likely slow the export of sea ice from the Arctic Ocean.
Note that the sea ice drift vectors during summer (May - September in NH, November - May in SH) are processed from the 18.7 GHz imagery of JAXA's GCOM - W1 AMSR2 instrument.
However, July conditions greatly reduced sea ice drift speed in the Beaufort Sea and produced a counterclockwise drift pattern in the Laptev Sea (Figure 5a, bottom).
A new article in American Scientist retraces Nansen and Shackleton's expeditions from the perspective of modern ocean conditions and sea ice drift conditions.
Over the sea ice field the observations include: sea ice freeboard height and hence sea ice thickness from radar altimetry; sea ice surface temperature and sea ice drift from respectively infrared radiometer and imaging spectrometer under cloud free conditions.
Last April, I wrote a piece for Times Insider tracing Dot Earth's origins and the roots of my passion for online interactive journalism, which really began much earlier — when I was camped with scientists on the sea ice drifting around the North Pole in 2003 and a home - page editor suggested I do a reader forum.
April 14 The Titanic gets warnings from other ships that there is ice drifting around Newfoundland:
The team investigated the trajectories of sea ice drifting in the ocean and saw a pattern of ice — and hence water — flowing northward from the vast northern coast of Russia toward the middle of the Arctic Ocean, where the radium concentrations had increased.
The National Snow and Ice Data Center, as expected, said today that the cloak of sea ice drifting on the Arctic Ocean hit its minimum extent on Sept. 12, putting 2009 behind the last two years in the size of the retreat.
The instabilities in the ice drift patterns broadly favor ice export via Fram Strait.
The speed of the ice drift is roughly 1 — 4 cm / s.
Image of the ice drift through a 3 day period, from 2000, April 30 to May 3.

Phrases with «ice drift»

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