Sentences with phrase «lake ice»

Reduced lake ice coverage, in turn, increases the amount of sunlight lakes absorb.

Now this weird combination of wind, long - lasting lake ice and warming temperatures are causing these ice spikes to surge out of lakes.

«The dramatic changes in lake ice may also contribute to further warming of the entire region, because open water on lakes contributes to warmer air temperatures, albeit to a lesser extent than open seawater,» Surdu said.

Lindner, B.L., C.P. McKay, G. Clow, and R. Wharton, NOAA investigation into the climatic causes of Antarctic lake ice thinning, NOAA National Environmental Watch, (electronic publication available on CD - Rom from NOAA), 1994.

Lindner, B. L., C. P. McKay, G. D. Clow, and R. A. Wharton, Why is Antarctic lake ice thinning?

«During the 1970s, late winter lake ice thickness measurements commonly exceeded 2 meters (6.5 feet) in northern Alaska.

Warmer winters combined with an increase in snowfall during the last 30 years have limited the growth of seasonal lake ice.

That's important — changing sea ice, changing lake ice, changing snow cover, increasing shrubs — but I wanted the book to enrich that picture, by describing those changes through the human lives that experience them.

Drillers have extracted very little Vostok lake ice over the last 20 years.

Researchers at the Rensselaer Polytechnic Institute's Darrin Freshwater Institute in Bolton Landing have been studying the impact of water temperate and lake ice for several years, said Sandra Nierzicki - Bauer, executive director.

A warming world also has the potential to change rainfall and snow patterns, increase droughts and severe storms, reduce lake ice cover, melt glaciers, increase sea levels, and change plant and animal behavior.

Erosion has also increased during winter; shrinking lake ice — a product of climate change — does not protect the dune from winter winds as it has in the past.

Lake ice microbial communities, called LIMCOs as a counterpart to the already well described sea ice microbial communities (SIMCOs), are highly active and live within alternating layers of slush and white ice.

And from glacial melt to the declining lake ice to changes in lake ecology, the results from Lake Hazen on Ellesmere Island in Canada are alarming.

«So if we have less lake ice or longer ice - free periods, more light enters the lake, which could actually increase productivity for the lake, a dramatically different scenario from what we've seen in the past.»

Consistent with observed increases in surface temperature, there have been decreases in the length of river and lake ice seasons.

«What will happen if lake ice cover decreases in warming temperatures?»

«One of the most exciting aspects of this project is investigating the use of synthetic aperture radar (SAR) satellite imagery, provided by NASA through the Alaska Satellite Facility, to quantify methane bubbles trapped by lake ice.»

(If water continued to contract as it approached freezing, lake ice dynamics would be very different!)

Spinning around on a circular piece of frozen lake ice, friends and family enjoy this chainsaw - carved carousel as a new kind of winter fun.

Figure 18.7: Bars show decade averages of annual maximum Great Lakes ice coverage from the winter of 1962 - 1963, when reliable coverage of the entire Great Lakes began, to the winter of 2012 - 2013.

1979 was the year that the great lakes ice coverage record was set that still stands and was not broken this year, but it came within 1 - 2 percent of being broken (~ 94 %).

Lake ice thinning has important consequences for Arctic lake hydrology, biology and permafrost degradation, says Ben Brock

These drastic reductions in lake ice, caused by changes in winter climate, are the primary reason that shallow lakebed temperatures are warming and the permafrost below them is thawing.

At Isle Royale National Park in Lake Superior, both moose and wolves gained access decades ago by walking 15 miles or so over winter lake ice.

Lindner, B. L., C. P. McKay, G. D. Clow, and R. A. Wharton, Computational modeling of Antarctic lake ice, in Advances in Ice Technology, T. K. S. Murthy, W. M. Sackinger, and P. Wadhams, ed.s, pp. 105 - 116, Computational Mechanics Publications, Southampton, U.K., 1992a.

And that means a reduction in Great Lakes ice cover, which leads to more evaporation, lower water levels, and consequent impacts on shipping, infrastructure, beaches and ecosystems.

Much of his research career has focused on glaciers and lake ice, work that is highly interdisciplinary in nature, incorporating geology, physics, and meteorology.

Mote was one of 12 lead authors on a chapter of the fifth Intergovernmental Panel on Climate Change report looking at the cryosphere, which is comprised of snow, river and lake ice, sea ice, glaciers, ice sheets and frozen ground.

However, during winter field surveys over the last decade, lake ice has typically only grown to 1.5 meters (5 feet) thick, and has been as thin as 1.2 meters (4 feet),» said Christopher Arp, research assistant professor at the University of Alaska Fairbanks (UAF) Water and Environmental Research Center and lead author of the new study accepted for publication in Geophysical Research Letters, a journal of the American Geophysical Union.

With increasingly warmer and snowier winters yielding thinner lake ice, shallow lakes will likely continue to warm, Arp said.

For example, thinner lake ice may help fish overwintering, or it may help the oil industry since they need lake water to build winter ice roads.

However, a regime shift in lake ice is leading to sub-lake permafrost thaw now.

From known associations of individual aquatic species with various environmental conditions, the researchers conclude that summers have lengthened and lake ice cover has diminished across much of the Arctic since the mid-1800s.

Stepping onto an inch - and - a-half thick piece of lake ice — much less doing laps on it — is a no - go for most people.

«Lake ice is important, because it prevents light from getting in to the lake, which phytoplankton need to photosynthesize,» said Kyra St. Pierre, a co-author and Vanier Scholar PhD student at the University of Alberta.