Sentences with phrase «with glacial ice»

So, I'm not extremely versed with glacial ice, but what we're talking about is sheathing of ice because of ice flow, not melting, correct?

Ken Caldeira: «Melting in Antarctica is strongly influenced by interactions involving the circulation of seawater, and its interaction with glacial ice, sea ice, surface winds and temperature, sunlight and so on.

When doing this with sea level data, as with OHC, as with tropospheric sensible heat, as with glacial ice mass loss, we are seeing a background, longer - term change that is non-linear, and for several decades now, accelerating.

It was covered with glacial ice — the East Antarctic Ice Sheet.

Not exact matches

Glacial ice, her mirror, falling, Shatters into shards: each flutters Through the air; her splintered snowflakes Fly, all fletched with freezing feathers.

And we have it on pretty good authority that the same sort of glacial melting occurred with the last ice age.

Some of the ensuing hikes can be strenuous, aside from the inherent visual rewards, ship personnel greet trekkers at the end of the trudge with a choice of hot chocolate or a generous tumbler of Johnny Walker Red poured over 2,000 year - old glacial ice.

My itinerary was Torre del Paine National Park, a preserve of stark beauty with jagged peaks bisected by frozen glacial rivers of ice, herds of guanacos, nandus (large ostrich - like birds also called rheas), foxes and, most nearly - extinct of all, the rarely - seen authentic cowboy.

When that glacier recedes, it leaves a basin, enclosed by the moraine and remaining glacial ice, which fills with meltwater.

Unlike space probes, which pass through sterile space, ice drills must pass through thousands of feet of glacial ice loaded with microbes before they reach their target; therefore a microbial buildup on equipment and drilling fluids is «inevitable.»

By combining GOCE's high - resolution measurements with information from Grace, scientists can now look at changes in ice mass in small glacial systems — offering even greater insight into the dynamics of Antarctica's different basins.

In 1998, while boring near the bottom of that long core, expecting to hit bedrock, the drillers brought up ice with crystals that were startlingly different from those usually found in glacial ice.

Neanderthals, with whom we shared the planet until just before the last glacial maximum, 20,000 years ago, may have struggled to survive as the rising and falling ice ate away at their habitat — although many other explanations for their extinction have been suggested.

The sediment cores used in this study cover a period when the planet went through many climate cycles driven by variations in Earth's orbit, from extreme glacial periods such as the Last Glacial Maximum about 20,000 years ago, when massive ice sheets covered the northern parts of Europe and North America, to relatively warm interglacial periods with climates more like tglacial periods such as the Last Glacial Maximum about 20,000 years ago, when massive ice sheets covered the northern parts of Europe and North America, to relatively warm interglacial periods with climates more like tGlacial Maximum about 20,000 years ago, when massive ice sheets covered the northern parts of Europe and North America, to relatively warm interglacial periods with climates more like today's.

The proportions of the canyon, as well as its meandering path, suggest that the feature was carved by a great river well before the island was coated with ice, not by glacial action in the years since.

She recently worked with a biologist in Washington, for example, on a paper about how narwhals use glacial fronts in summertime — the tusked marine mammals appear to be attracted to glaciers with thick ice fronts and freshwater melt that's low in silt, though it's not yet clear why.

The pressure of the ice sheet constrains the lava flow, and glacial meltwater chills the erupting lava into fragments of volcanic glass, forming mounds and ridges with steep sides and flat tops.

«the last glacial period is a good example of a large forcing (~ 7 W / m ^ 2 from ice sheets, greenhouse gases, dust and vegetation) giving a large temperature response (~ 5 ºC) and implying a sensitivity of about 3ºC (with substantial error bars).»

As we have discussed previously, the last glacial period is a good example of a large forcing (~ 7 W / m2 from ice sheets, greenhouse gases, dust and vegetation) giving a large temperature response (~ 5 ºC) and implying a sensitivity of about 3ºC (with substantial error bars).

«Conversely, there is more and better evidence across Iceland that when the ice sheet underwent major reduction at the end of the last glacial period, there was a large increase in both the frequency and volume of basalt erupted — with some estimates being 30 times higher than the present day.

Recent research shows that there is high microbial activity on glacial surfaces (Anesio et al., 2009), some associated with pigmented algae, which absorb significantly more light than local inorganic dust particles on the Greenland Ice Sheet (GrIS)(Lutz et al., 2014).

Continuous annually layered strata provide the best kind of geological archive in which to search for a «golden spike» — these form on the floors of oxygen - starved seas and lakes, in glacial ice, and in corals and trees with seasonal growth rings

During the Middle Pleistocene, ice sheets were reaching the continental shelf for longer, with more distinct glacial - interglacial cyclicity [28].

Wellner, J.S., Lowe, A.L., Shipp, S.S., and Anderson, J.B., 2002, Distribution of glacial geomorphic features on the Antarctic continental shelf and correlation with substrate: implications for ice behavior: Jour.

It is thus suggested that D / O events are a consequence of interactions of the windfield with the continental ice sheets and that better understanding of the wind field in the glacial periods is the highest priority.

Episodic retreat is recorded by mega-scale glacial lineations that are overprinted by transverse grounding - zone wedges, each recording a pause in ice stream retreat with a stationary grounding line.

Thick ice streams were abundant on the continental shelf, with warm - based ice grounded on the continental shelf during glacials [35].

Another sign climate change hasn't stopped is that other climate indicators have continued with no signs of reversing, from Arctic sea ice and glacial retreat to rising seas.

With higher precipitation, portions of this snow may not melt during the summer and so glacial ice can form at lower altitudes and more southerly latitudes, reducing the temperatures over land by increased albedo as noted above.

This type of chaotic pattern of rapidly changing land, ice, saltwater and freshwater has been proposed as the likely model for the Baltic and Scandinavian regions, as well as much of central North America at the end of the last glacial maximum, with the present - day coastlines only being achieved in the last few millennia of prehistory.

Since then, the world has seen cycles of glaciation with ice sheets advancing and retreating on 40,000 - and 100,000 - year time scales called glacials (glacial advance) and interglacials (glacial retreat).

The ice ages were actually many pulses of cold glacial phases interspersed with warmer interglacials.

Let's start off with a science lesson: why is glacial ice blue?

Frosted Cherry Pop - Tarts are the perfect snack for a hike, particularly when eaten on the deserted shore of a glacial lake with bald eagles and sea planes flying overhead, and SUV - sized chunks of blue ice out there, melting slowly in the sun.

Learn about the behavior of glaciers and hike with professional mountain guides on the Solheimajökull glacial tongue, a wonderland of ice sculptures, water cauldrons, ridges, and deep crevasses.

Climbing it rewards you with incredible 360 degree views of the area — Greenland's ice cap to the East, Kangerlussuaq to the West, and the glacial river called Akuliarusiarsuup Kuua below.

How many locations on the planet can you crawl into bright blue glacial ice caves, fly over an erupting volcano bubbling with lava, AND stay up all night transfixed by magical Northern Lights?

Here you find mountains akin to the dramatic landscapes of New Zealand, combined with the largest glacial ice fields in South America, slowly melting to feed into a vast network of turquoise rivers and lakes, with water so pure you can drink it!

Although not initially that impressive, the Opera House's magic takes a little longer than love - at - first - sight admiration, though as sure as Norway's glaciers run deep with ancient ice, this man made glacial showpiece will eventually leave you spellbound.

Fox Glacier Guiding will guide you onto the ice via a secret track through bush regenerating from previous glacial advances & share with you their knowledge of the geology of the area.

Glacial climatic fluctuations caused habitat changes, including the appearance of continental ice sheets as far south as Washington State [37], that may have caused range shifts in locally adapted gray fox populations, with foxes with clade B haplotypes existing as far south as southern California.

You'll also enjoy a visit to romantic Chillon Castle, a well - preserved, medieval castle on the shores of Lake Geneva.If spectacular scenery is your interest, then you'll be thrilled with the ride on the world - famous Glacier Express train, where you'll travel first - class and have panorama windows to admire the thundering waterfalls, impressive peaks, glacial ice fields, and tiny villages on your way to Zermatt, a picturesque cluster of rustic chalets beneath the majestic Matterhorn.

Glacial Specimens (flame worked glass with clay and acrylic paint) consists of several small mixed media glass sculptures which capture the ephemeral nature of snow and ice crystals.

Such close linkages between CO2 concentration and climate variability are consistent with modelling results suggesting with high confidence that glacial — interglacial variations of CO2 and other greenhouse gases [CH4, N2O] explain a considerable fraction of glacial — interglacial climate variability in regions not directly affected by the northern hemisphere continental ice sheets (Timmermann et al., 2009; Shakun et al., 2012).

The Lake Missoula floods were the result of the progressive structural collapse of a canyon full of ice with super glacial ponds on top of it to form the wave benches.

Aaron: Are you suggesting that Glacial Lake Missoula was mostly solid ice with super glacial ponds on topGlacial Lake Missoula was mostly solid ice with super glacial ponds on topglacial ponds on top of it?

«the last glacial period is a good example of a large forcing (~ 7 W / m ^ 2 from ice sheets, greenhouse gases, dust and vegetation) giving a large temperature response (~ 5 ºC) and implying a sensitivity of about 3ºC (with substantial error bars).»

It seems increasingly clear that D - O events must involve major sea ice changes (and there is not much sea ice left, by comparison with what was present during the glacial period (20000 + years ago, when these events happened), so D - O events are increasingly unlikely in the future).

The kind of switch operating during glacial periods, leading to D - O events, is unlikely to work in a warm climate with relatively little ice.

Along with David Schilling, I had developed a model to reconstruct former ice sheets with ice elevations based on the strength of ice - bed coupling determined by glacial geology.