Sentences with phrase «portions of the ice sheet»

Deep ocean water, which is relatively warm, has been melting portions of the ice sheet at its base.

Finally, if a zero melt day anomaly were to reflect ice - free conditions, as you suggest then, much of the southern and eastern portion of the ice sheet (blue - green areas in figure 1) would actually be exposed bedrock.

Given the potency of methane as a greenhouse gas, this could be a problem for Earth's atmosphere if a large portion of the ice sheet were to melt away.

The new study, accordingly, uses a computer model of Antarctica to study the consequences of adding huge volumes of salt water to different portions of the ice sheet.

Tide heights near ice shelves can be measured using traditional coastal tide gauges and bottom pressure recorders, while currents can be measured with meters on moorings in the open ocean or deployed through boreholes drilled through ice shelves, which are the floating portions of ice sheets.

Either such shattered rock lies at the bottom of one of the Great Lakes or else was scraped off by subsequent reformation of the local portion of the ice sheet.

Not exact matches

-- On a lower speed, add eggs one at a time and vanilla until well incorporated — Increase mixing speed to high and let it go for 10 minutes — the mixture will become really pale and will almost double in size — In a medium sized bowl, whisk together flour, baking powder, baking soda, and salt — When 10 minutes are up, add flour mixture slowly until just combined, about 45 - 60 seconds — Chop up and mix together all of your baking and snack ingredients in a small bowl, and fold into batter with a spatula until just incorporated — Using a medium - sized ice cream scoop, portion cookie dough on parchment paper - lined cookie sheet and wrap the entire thing tightly with plastic wrap — Refrigerate for a minimum of 1 hour and up to 1 week — Heat oven to 400F and arrange cookies on cookie sheets at least 4 ″ apart — Bake 9 - 11 minutes, until they are golden in color and slightly brown along the edges — Cool the cookies completely on the sheet pan (or just eat them immediately...)

Scoop out even portions of cheese (you can use an ice cream scoop if you have one) and place on baking sheet, 3 - inches apart.

Use an ice cream scoop to take equal portions of dough and place on the prepared baking sheet.

Scoop 2 to 3 tablespoon portions of the cookie dough onto the prepared baking sheet using a medium - size spring - loaded ice cream scoop, placing them about 1 1/2 - inches apart from one another.

With an ice - cream scoop, place portions of dough on a parchment - lined sheet pan about 3 inches apart.

ice cream scoop, portion out 10 balls of dough and place on a parchment - lined baking sheet, spacing about 3» apart (you can also form dough into ping pong — sized balls with your hands).

Drop approximately 1/4 cup portions of the dough onto an un-greased cookie sheet using an ice cream scoop or large spoon.

So far, the Ohio State team has finished processing images from about one quarter of the Greenland Ice Sheet, representing a tiny portion of the data already stored at Minnesota, and about one year's worth of work and computing for the research team.

As an example, Howat pointed to the portion of the mosaic showing Jakobshavn Glacier, the fastest - flowing glacier in the Greenland Ice Sheet.

«The fact that a large portion of the western flank of the Greenland ice sheet has become dark means that the melt is up to five times as much as if it was a brilliant snow surface.»

Traveling by helicopter from the main American base of McMurdo Station on Ross Island to the Dry Valleys, researchers fly over a portion of the Ross Ice Shelf and then a corner of the mesmerizing white spread of the East Antarctic Ice Sheet, which is the largest in the world.

Some scientists have argued that Earth's crust in northern portions of North America is still slowly springing upward in response to the melting of the ice sheet that smothered the region during the last ice age.

The concept is relatively simple: A huge portion of the West Antarctic ice sheet sits on bedrock below sea - level that slopes even deeper further inland from the shore.

Virtually all of what is now Canada, together with considerable portions of the northern US, was covered with an ice sheet several kilometers thick.

With support from the National Science Foundation, the Climate Impact Lab is working to keep the projections framework up - to - date, building upon the latest science on potential mechanisms that may destabilize large portions of the Antarctic ice sheet.

Our modelled values are consistent with current rates of Antarctic ice loss and sea - level rise, and imply that accelerated mass loss from marine - based portions of Antarctic ice sheets may ensue when an increase in global mean air temperature of only 1.4 - 2.0 deg.

Abstract:... beneath portions of the northeastern Laurentide Ice Sheet, characterized by cold - based glaciation, sediment sequences representing multiple interglaciations have been preserved within extant lake basins.

Virtually all of what is now Canada, together with considerable portions of the northern US, was covered with an ice sheet several kilometers thick.

By coincidence, Behar's death came just three days before publication of the latest study on which he is a co-author — a detailed analysis of the melt - water rivers and moulin drains across a 2,000 - square - mile portion of the vast Greenland ice sheet.

If I may add one more speculative question: are the portions of glacial sheets formed during periods of high ice flux less stable, and more prone to calving, than those formed during slow flux?

These are risks like the unstoppable loss of big portions of Greenland and West Antarctic ice sheets.

If that acceleration trend continues unabated, through any significant portion of the planet's ice sheets, then we could lose all seaports (like NYC, Boston, Seattle) and coastal communities, natural and man - made.

A seven - meter rise is the predicted change in global sea levels if half the Greenland ice sheet and a portion of the Antarctic ice sheet were to melt.

New studies released on Monday show that a large portion of the West Antarctic Ice Sheet may have begun a slow but «unstoppable» collapse, with the demise of these glaciers taking place sometime during the next few centuries to as many as 1,000 years from now.

A significant portion of the Greenland ice sheet — which contains enough water to raise the worldwide sea level by about 23 feet (about 7 meters)-- would also melt.

If Antarctica's ice sheets collapse, it would expose these hydrates, inundating them with seawater as the ocean washed over portions of the continent.

We are already in territory that will melt catastrophic portions of the polar ice sheets, and create havoc with weather extremes, agriculture, and infrastructure around the world in coming decades.

A similar behaviour might be occurring on the Amundsen Sea sector of the west Antarctic Ice Sheet (WAIS), where Pine Island and Thwaites glaciers have lost significant portions of their fringing ice shelves, and show signs of recent acceleratiIce Sheet (WAIS), where Pine Island and Thwaites glaciers have lost significant portions of their fringing ice shelves, and show signs of recent acceleratiice shelves, and show signs of recent acceleration.

NASA says Seroussi's study provides more evidence of geothermal activity underneath a portion of the world's largest ice sheet.

With support from the National Science Foundation, the Climate Impact Lab is working to keep the projections framework up - to - date, building upon the latest science on potential mechanisms that may destabilize large portions of the Antarctic ice sheet.

DeConto says the melting of the Greenland ice sheet can only explain a portion of the phenomenon during the Eemian and Pliocene, and that most of it must have been the result of retreat on Antarctica.

Previous studies have suggested that this portion of the Antarctic Ice Sheet may have retreated before, but this recent work is the first of its kind to establish direct connections between the present - day Totten Glacier and the deteriorated landscape buried deep within the icy region.

As explained in the press release, the scientists began with the measure of sea level rise between 2005 and 2013, then deducted the amount of rise due to meltwater (e.g., melting ice sheets and loss of glacier mass worldwide) and then the amount of rise due to the expansion of water from the warming in the upper portion of the world's oceans (which scientists have good data on).

In a new study, researchers have observed an expansion of the crevasse fields in one portion of the Greenland ice sheet, a change that they suggest may influence how the ice sheets move toward the ocean and raise sea levels.

«The Laurentide Ice Sheet was a massive sheet of ice that covered hundreds of thousands of square miles, including most of Canada and a large portion of the northern United States, multiple times during Quaternary glacial epocIce Sheet was a massive sheet of ice that covered hundreds of thousands of square miles, including most of Canada and a large portion of the northern United States, multiple times during Quaternary glacial epSheet was a massive sheet of ice that covered hundreds of thousands of square miles, including most of Canada and a large portion of the northern United States, multiple times during Quaternary glacial epsheet of ice that covered hundreds of thousands of square miles, including most of Canada and a large portion of the northern United States, multiple times during Quaternary glacial epocice that covered hundreds of thousands of square miles, including most of Canada and a large portion of the northern United States, multiple times during Quaternary glacial epochs.

The ice sheet that covers eastern Antarctica grew, but only by about 14 billion tons — not nearly enough to offset the losses from the layer that covers the western portion of the continent and the Antarctic Peninsula.

One other thing to point out about the Younger Dryas / Impact theory... They call upon the rapid break up of a portion of the Laurentide Ice Sheet culminating with the original freshwater routing hypothesis to explain the 1.3 kyr reduction in Atlantic overturning circulation.

For example, the initial development of a continental ice sheet increases albedo over a portion of Earth, reducing surface absorption of sunlight and leading to further cooling.

You'd hardly notice that change in an afternoon, but in terms of global mean temperature it's the difference between what we have now and mile - high ice sheets covering large portions of the northern hemisphere.