Sentences with phrase «by lake ice»

Not exact matches

Even weather control is not as incredible as it sounds, for there is a delicate energy balance which can be changed by thin films on lakes and ice fields, or by air - borne particles.

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I'm eager for all that summer goodness; farmer's markets, fresh products, ice cream, lazy days spent at our summer cottage by the lake, weddings, berry picking trips, long summer nights... I'm ready for you, summer!

This hugemountain lake is not frozen, as we had hoped; we could have shortened our routeby 20 miles by crossing the ice.

The towns offer other attractions, such as the Cantigny Museums and Gardens, in Wheaton, a vivid tribute to veterans (the museums are the official repository for the 1st Division of the Army) surrounded by lush gardens; and the picturesque, 10 - acre Lake Ellyn in Glen Ellyn, which residents use for fishing and ice skating.

At about 110 degrees, the tarp burnt its way into the ice with the effect of an electric blanket, and when Krolak stopped by at 1:30 p.m., he described the rink as «a lake.

A mundane Antarctic lake hides a unique fossilized ecosystem, some 3000 years old and sealed by a permanent layer of ice.

The Great Lakes were shaped by ice ages that sent glaciers sweeping over much of the northern hemisphere.

And at high global latitudes, cold lakes normally covered by ice in the winter are seeing less ice year after year — a change that could affect all parts of the food web, from algae to freshwater seals.

It quickly became clear that this was an environment sealed away from the earth's surface, and although the water in the lake may itself be slowly changed out by the deep - ice dynamics of Antarctica, this process could take well over 10,000 years.

The researchers propose that, unlike in Antarctica where surface temperatures remain below freezing all year round, the newly discovered lakes are most likely fed by melting surface water draining through cracks in the ice.

The apparent absence of lakes in Greenland had previously been explained by the fact that steeper ice surface in Greenland leads to any water below the ice being «squeezed out» to the margin.

For instance, researchers may have a limited time to survey coastal archaeological sites threatened by erosion, to sample melting ice sheets holding clues to past climates, and to document so - called thermokarst lakes, which are formed by meltwater from permafrost.

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.

The lakes and channels are undetectable by human senses, since they lie beneath half a mile of ice.

As Tulaczyk watched the Herc on Jan. 17, 2013, the lake remained a mere silhouette pieced together from noisy geophysical measurements involving radar, lasers shot down from satellites and the seismic echoes of shock waves released by explosives detonated in shallow holes in the ice.

What is now Lake Whillans was probably covered and uncovered by the ice sheet dozens of times as the climate swung back and forth over the past 20 million years.

Global freshwater resources water projects at DTU: 68.9 per cent is accounted for by glacial ice, 30.8 per cent by groundwater and 0.3 per cent by lakes and rivers.

The lakes are fed by geothermal heat that seeps up from the Earth's interior, melting away the bottom of the ice sheet at a rate of several dime - thicknesses per year and liberating water from the ice.

Thus the entire lake food web is impacted by the degree of ice cover from year to year and the degree of winter productivity.

By taking ice samples for the last five winters and analyzing for the chlorophyll produced by algae and photosynthetic bacteria, Twiss and his team have determined that from November to April the Lake experiences great primary productivity, more so than in spring or summeBy taking ice samples for the last five winters and analyzing for the chlorophyll produced by algae and photosynthetic bacteria, Twiss and his team have determined that from November to April the Lake experiences great primary productivity, more so than in spring or summeby algae and photosynthetic bacteria, Twiss and his team have determined that from November to April the Lake experiences great primary productivity, more so than in spring or summer.

They are linked by rivers that form when melting ice expands the lakes, increasing pressure under the ice cap and causing underground channels of water and mud to squirt out.

Researchers speculate that primitive life could eke out an existence there, subsisting on a bare minimum of dissolved organic carbon — a notion bolstered by the recent discovery of bacteria within refrozen ice in a core drilled to 100 meters above the lake under Vostok Station (ScienceNOW, 9 December 1999).

Lakes may form when meteorite impacts heat ice in the crust or when underground reservoirs of water kept liquid by geothermal heat leak onto the surface.

These valleys are characterized by harsh katabatic winds, glaciers, sandy surroundings, and permanent ice - covered lakes, which harbour the most exceptional life - in - ice - forms I have ever seen.

Warmth from the Earth has melted about 2000 cubic kilometers of water, making Lake Vostok by far the largest of more than 70 known lakes within the Antarctic ice.

In 1996, right at the end of my PhD, I was invited by John C. Priscu of Montana State University in Bozeman MSU to participate in his project studying ice microbial communities in antarctic lakes.

That changes the patterns of stress in the ice, which ripple across the ice shelf and can cause nearby lakes to drain, setting up a chain reaction by which the entire lake - ridden portion of the ice shelf can splinter.

Two other teams, led by David Karl of the University of Hawaii, Manoa, and John Priscu of Montana State University in Bozeman, found «coccoid,» or spherical, bacteria in the lake ice, and Karl's team managed to revive the bacteria in his lab.

A new study by scientists at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California, and the University of California, Irvine, shows that while ice sheets and glaciers continue to melt, changes in weather and climate over the past decade have caused Earth's continents to soak up and store an extra 3.2 trillion tons of water in soils, lakes and underground aquifers, temporarily slowing the rate of sea level rise by about 20 percent.

«At Kima'Kho, we were able to map a passage zone in pyroclastic deposits left by the earliest explosive phase of eruption, allowing for more accurate forensic recovery of paleo - lake levels through time and better estimates of paleo - ice thicknesses,» says UBC volcanologist James K Russell, lead author on the paper published this week in Nature Communications.

By measuring the bonds of prehistoric alkenones preserved in ancient layers of lake sediment, the team opened a window on Arctic temperature change since the end of the last Ice Age.

At two lake sites in Europe, there seems to be a reaction that tracks the changes in the ice cores by as little as a decade and at most a couple of hundred years.

A team of scientists led by Dr. Martin Sharp, a glaciologist at the University of Alberta, discovered the hypersaline lakes while looking for subglacial continents in the Devon Ice Cap.

These lakes occur as a result of geothermal heat trapped by the thick ice, melting it from underneath, and the great pressure from the ice above, which lowers the melting point of water.

Additional data often mapped by satellite and added to glacier inventories include changing ice debris cover20, rock glaciers21, equilibrium line altitude22, grounding zones23 and glacial lake extent24, 25.

The Great Lakes and the Finger Lakes were carved by ice deepening old valleys.

If more ice is lost at the margins than gained at the core, the ice sheet shrinks, ultimately affecting albedo as (depending on the underlying geography) lakes form, some rockbed is exposed and areas are reconquered by the ocean.

That is the paper by Poul Christoffersen et al. [«Cascading lake drainage on the Greenland Ice Sheet triggered by tensile shock and fracture.»]

Photos by Brent Christner, LSU associate professor of biological sciences and lead author of the report — Amanda Achberger, a doctoral candidate and researcher on the National Science Foundation - funded Whillans Ice Stream Subglacial Access Research Drilling (WISSARD) project works on equipment involved with drilling down and sampling a lake located under almost a half - mile of iIce Stream Subglacial Access Research Drilling (WISSARD) project works on equipment involved with drilling down and sampling a lake located under almost a half - mile of iceice.

Previous reports of microbes from other lakes under the Antarctic ice have met skepticism, due to the possibility of contamination by surface microbes.

When combined with pressure and elevation, this «pumping» action of ice can be an extremely effective rehabilitation tool (and you can observe this in nature by simply jumping into a cold lake for about 20 minutes and watching your skin slowly turn red as reactive vasodilation occurs).

From the lush trees of the Landlocked Forest to the peaceful waters of Lake Champlain, Burlington is a beautiful destination made even more tempting by the delicious ice cream factory just down the road.

After Chunky destroys the ice barrier in the Crystal Caves lobby revealing a lake of lava and a Golden Banana across the lake way, Chunky can use the Tag Barrel to switch to DK and DK can become invincible to retrieve the Golden Banana by using his barrel move: «Strong Kong».

Although freezing rain gives way to snow flurries by midafternoon, there is no way we can play driftmeister hooligan on one of the nearby frozen lakes, as the ice is sadly too thin even for Porsche's new lightweight 718 Boxster prototype we've come here to play with in the cold.

Near Yellowknife, in Canada's remote Northwest Territories, Volkswagen showed us some of the science that goes into creating massive ice highways like those you've seen on shows such as «Ice Road Truckers» — or, for locals, routes like Dettah Road, which traverses a portion of the Great Slave Lake's 300 - mile span, enabling vehicular access to areas reachable only by boat most of the yeice highways like those you've seen on shows such as «Ice Road Truckers» — or, for locals, routes like Dettah Road, which traverses a portion of the Great Slave Lake's 300 - mile span, enabling vehicular access to areas reachable only by boat most of the yeIce Road Truckers» — or, for locals, routes like Dettah Road, which traverses a portion of the Great Slave Lake's 300 - mile span, enabling vehicular access to areas reachable only by boat most of the year.

We love sitting in the back cargo area with the hatch open eating ice cream while parked by Lake Ontario.

Cool drinks by the pool, active days on the lake, and frequent visits to ice cream stands keep our skins tanned and our bodies refreshed.

The Capital Region largely sits on clay and silt deposited by a lake that swallowed the area during the last Ice Age, said Andrew Kozlowski, an associate state geologist at the State Museum and director of the state Geologic Mapping Program.

By day, skate on the stunning frozen surface of Lake Louise, watch competitive ice carvers or spend a day skiing or riding on the slopes of one of the nearby ski resorts: Mt Norquay, Lake Louise Ski Resort or Sunshine Village.