Sentences with phrase «sea ice drift»

It seems like sea ice drift speed is an important parameter related to sea ice summer minimum extent and that seems quite logical.

Why is sea ice drifting so much more rapidly today than before?

Andrew Revkin filed stories and answered reader questions while camped on sea ice drifting near the North Pole in 2003.

Heil, P. and W. D. Hibler III, 2002, Modeling the high - frequency component of Arctic sea ice drift and deformation, J. Phys.

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.

The processing and dissemination of sea ice drift vectors from low - resolution imaging sensors (OSI - 405) was succesfully resumed today 4 October 2010.

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).

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.

A new article in American Scientist retraces Nansen and Shackleton's expeditions from the perspective of modern ocean conditions and sea ice drift conditions.

The lower sea ice concentration observed north of the Beaufort Sea in the area and explored during CHINARE 2008 with Xuelong seems to have been preconditioned by a strong and persistent northward sea ice drift that lasted for several months from spring (April 2008), when ice stations were deployed north of the Canadian polar station Eureka, to well into the summer.

- 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.

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).

The shift in air pressure pattern also resulted in a change in sea ice drift directions in the Arctic.

This AD pattern quickly shifted in the second half of June, however, and was replaced by a low sea level pressure center over the Pacific side of the Arctic Ocean (Figure 3b), opposing the transpolar sea ice drift.

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.

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.

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.

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.

Sentinel - 1A / B operate a synthetic aperture radar (SAR) with advanced observation capabilities in all weather conditions over the ocean (wind, waves, and surface current) and sea ice field (sea ice deformation, lead fraction and sea ice drift).

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.

Spreen, G., R. Kwok, and D. Menemenlis (2011), Trends in Arctic sea ice drift and role of wind forcing: 1992 — 2009, Geophys.

- To evaluate the impact of a more realistic representation of sea ice drift and deformation on the simulation of the upper Arctic Ocean heat budget.

Secondary objectives: Four secondary objectives have been defined: - To assess the effect of a more accurate simulation of sea ice drift and deformation on the Arctic sea ice mass balance and distribution properties of sea ice age.

We model sea ice variability, assess the quality of sea ice drift and ice edge forecasts, and identify how to make improvements.

Early in the year, sea ice drift had a strong clockwise pattern (Figure 5a, top).

The sites were 222 kilometers apart, on average, and as the sea ice drifted, the tethered sensors did too.