Sentences with phrase «snow accumulation»

While the term «snowy» has generally been true for most of American history, the mountain range has seen far less snow accumulation in recent years.

Annual snow accumulation increased in the early 20th century, rising 30 percent between 1900 and 2010, according to the new study.

Scientists can calculate snow accumulation from satellite data, but satellite records have only existed since 1979.

A glacier's mass is the net result of seasonal snow accumulation and seasonal ice loss.

I love looking back at photos from 2014 and 2015 when we had a large amount of snow accumulation.

By measuring the thickness of the ice laid down each year, the researchers estimated annual snow accumulation for the past 300 years.

Ice, Cloud and land Elevation Satellite (ICESat) data (2003 — 08) show mass gains from snow accumulation exceeded discharge losses by 82 ± 25 Gt a — 1, reducing global sea - level rise by 0.23 mm a — 1.

At higher elevations, an increase in winter snow accumulation has partially offset the melt.

Annual snow accumulation on West Antarctica's coastal ice sheet increased dramatically during the 20th century, according to a new study published in the American Geophysical Union journal Geophysical Research Letters.

For the Vostok, Antarctica, record shown in Figure 1, we know that the reason 10Be concentrations increase when the temperature indicator decreases is that the 10Be flux has been diluted by lower snow accumulation rates characteristic of colder climate.

According to the governor, the highest snow accumulation of 88 inches was reported in Cowlesville, Wyoming County.

The National Weather Service predicted Suffolk County would get the strongest hit on the Island, with snow accumulations of 8 to 12 inches.

The National Weather Service predicted heavy lake - effect snow, with total snow accumulation of 2 to 3 feet in areas of the most persistent lake snows.

The hydrology of the FRB is dominated by snow accumulation and melt processes, leading to a prominent annual peak streamflow invariably occurring in June — July.

High winds and significant snow accumulation in higher elevations are forecast for Friday, March 2.

The National Weather Service has provided snow accumulation forecasts for the Northeast.

However due to the heavier snow accumulation since that time, the ice shelf has expanded further northward exceeding it previous extent in just over a decade (Keys 1998).

When firn is buried beneath subsequent snow accumulations, density increases as air spaces between the crystals are reduced by mechanical packing and plastic deformation until... interconnected air passages between grains are sealed off into individual air bubbles (Herron and Langway, 1980).

«Such an increase would not only reduce snow accumulations over the glaciers, but would also expose over 90 % of the current glaciered area to melt in the warmer months.»

Tags: glaciology, Greenland, polar science, radar, robot, robotics, rover, snow accumulation Posted in NASA News Comments Off on NASA's Polar Robotic Ranger Passes Its First Greenland Test

A 2015 study using regional ice core data reveals no unusual temperature changes but an exceptional 30 % increase in snow accumulation during the twentieth century, again supporting Zwally's analysis of mass gain in interior west Antarctica.

Dansgaard et al. (1989); increasingly abrupt changes were seen on further study, Johnsen et al. (1992); Grootes et al. (1993); jumps of Greenland snow accumulation «possibly in one to three years» were reported by Alley et al. (1993); see Alley (2000); five - year Younger Dryas steps: Taylor et al. (1997); a Younger Dryas temperature step in less than a decade was found to be hemisphere - wide since methane gas changed as well, Severinghaus et al. (1998).

Thomas attributes the higher annual snow accumulation over the last 30 years in part to an intensification of a regional low pressure system and more storms in the region.

Less than 24 hours before the City of Buffalo was anticipating its first snow accumulation of December, Mayor Byron Brown declared the city's streets personnel ready not just for the forecasted weather but for the entire coming winter season.

The researchers combined a regional snow accumulation model and a new map of Antarctica's bedrock with ice shelf thickness, elevation and velocity data captured by Operation IceBridge — an ongoing NASA aerial survey of Greenland and the South Pole.

«West Antarctic coastal snow accumulation rose 30 percent during 20th century.»

He found that the appellants reasonably followed a policy of sending out plows «if there was snow accumulation between midnight and 4:00 a.m. and to continue plowing until the snow was cleared.»

The authors found a variety of potential changes to these areas, including: a shift in the timing of streamflow due to changing snow accumulation and melt, a decrease of snow water equivalent precipitation (in the Peace and Campbell and in lower elevation areas of the Columbia) and an increase in snow water equivalent precipitation in the higher elevation areas of the Columbia.

With high snow accumulation levels expected in some areas and poor visibility and road conditions... Read more

The governor said that a total of 14 fatalities and six injuries were attributed to the storm, and more than 370 roofs were damaged and 38 structures completely destroyed due to the weight of the considerable snow accumulation.

«With near record snow accumulation, motorists should feel compelled to remove snow from their vehicles to prevent damage.»

These cylinders of ice drilled from the ice sheet hold evidence of past snow accumulation and temperature and contain impurities such as dust and volcanic ash compacted over hundreds of thousands of years.

These structures do not necessarily prevent snow accumulation, but help anchor the snow so it can't begin sliding and cause an avalanche.

David Ullman, a postdoctoral researcher at Oregon State University and lead author on the study, said there are two mechanisms through which ice sheets diminish — dynamically, from the jettisoning of icebergs at the fringes, or by a negative «surface mass balance,» which compares the amount of snow accumulation relative to melting.

When melting outpaces snow accumulation, as happened after the last glacial maximum, the surface mass balance is negative.

Researchers hope this tool and a handful of other instruments will help them map winter temperatures throughout the watershed as they track snow accumulation and melt.

It's critical to gain a better grasp of the physics at play behind this process because mass snow redistribution can increase the risks of avalanches, cause unusual snow accumulations in urban areas, as well as significantly reduce visibility, thus affecting travel.

Snow accumulation builds up the ice sheet, but the extra flakes have not acted as a life raft for West Antarctica's ice sheet, which previous research has found is rapidly thinning as the climate warms, Thomas said.

Meteorological data, which only date back 35 years, show the low pressure system has strengthened during that time, leading to more storms swirling around the Amundsen Sea and potentially greater snow accumulation, according to the paper.

Until 1899, annual snow accumulation remained steady, averaging 33 and 40 centimeters (13 and 16 inches) of water, or melted snow, each year at two locations.

«If the structure is indeed the result of the 2004 impact, we would expect it to have undergone about 10 years of alteration by processes such as snow accumulation, erosion by the wind, and deformation by the flow of the ice shelf itself.»