Sentences with phrase «so ice shelf»

So ice shelf collapse can indirectly add to sea level rise.

Not exact matches

In the mid-1980s all our flights were survey flights: we had 12 hours in the air once we left our base in southern Chile, so we had plenty of time to chat with the pilots about making a forced landing on the ice shelves.

Scientists still do not know what triggers the breakup of an ice shelf or when future ones will occur, so they struggle to estimate how quickly glaciers will dump their ice into the ocean and therefore how much sea level will rise.

Lacking many ice shelves to stem its flow, the glacier is particularly vulnerable to warming, part of the so - called weak underbelly of the West Antarctic Ice Sheice shelves to stem its flow, the glacier is particularly vulnerable to warming, part of the so - called weak underbelly of the West Antarctic Ice SheIce Sheet.

Scientists need to know how fast the ice shelves are disintegrating and what is causing the demise so that they can better estimate future sea - level rise.

Darker colors are colder, and brighter colors are warmer, so the rift between the iceberg and the ice shelf appears as a thin line of slightly warmer area.

Every ice shelf that the line crosses has collapsed within a decade or so.

Scientists need to better understand why and how fast the ice shelves are disintegrating so that they can better estimate future sea - level rise.

A better understanding of how and why the Larsen C crack expanded so quickly could help scientists better predict the future of all Antarctic ice shelves, says Richard Alley, a glaciologist at Penn State.

The iceberg, which is likely to be named A68, was already floating before it broke away so there is no immediate impact on sea levels, but the calving has left the Larsen C ice shelf reduced in area by more than 12 percent.

So, the thinning East Siberian Arctic ice shelf is sitting on top of billions of tonnes of trapped methane, which...

What's more, so did two smaller ice shelves elsewhere on the peninsula.

The ice under the front of the shelf is melting at a rate of about 3.3 feet (1 meter) per year, so the creatures must be burrowing to stay inside the ice, Rack said.

While researchers quickly linked the breakup to lakes of meltwater that had accumulated on the so - called Larsen B ice shelf's upper surface and then wedged apart deep crevasses, they hadn't come up with a convincing explanation for what triggered the collapse.

Ice shelves are already floating in the water, so they don't contribute to sea - level rise in any meaningful way.

So, if Larsen C ultimately breaks up, researchers are concerned that could be a sign that other ice shelves holding back a large amount of land ice could cause oceans to rise.

Since so much of the ice sheet is grounded underwater, rising sea levels may have the effect of lifting the sheets, allowing more - and increasingly warmer - water underneath it, leading to further bottom melting, more ice shelf disintegration, accelerated glacial flow, and further sea level rise, and so on and on, another vicious cycle.

So disappearing sea ice in the Arctic, or collapsing ice shelves in the Antarctic, do not directly add to sea level rise.

Scientists recognized that climate change is rapidly altering the landscape in Antarctica, particularly when it comes to glacier retreat and ice shelf collapse, so they made a pact for how they would approach research as huge chunks of ice broke off.

Through a unique combination of field work, satellite data and a climate model, the researchers were able to explain why some parts of the East Antarctica ice shelves are melting so rapidly.

So far the disentegration of smaller ice shelves on the Antartic Peninsula has increased the number of smaller icebergs, but not the large tabular icebergs that can travel quite far north.

and then flash back and forth to Katrina, Ice falling of the ice shelf, drought, and so forIce falling of the ice shelf, drought, and so forice shelf, drought, and so forth.

The FACT is that the ice shelf cracked up in the past, so its present condition is NOT unprecedented.

The actual mechanics of the whole thing are a hot topic (basal lubrication effects, ice shelve supports, ice stream variability etc.) and so actual predictions are in short supply.

So, I was curious about your recent paper and whether there was any discussion of changes in the THC poleward of the GIS shelf vs the data from the RAPID program line located at 26.5 N. With the decline in minimum extent and volume of sea - ice, one might expect to see more THC sinking into the Arctic Ocean, with consequences for both climate and weather.

# 146: my understanding is that ice shelf breakup does contribute to eustatic sea - level rise, as you say, but only a little, and less so for larger ice shelves (the anchoring is more distant).

But then the sea is majorly in contact with the ice, especially under the large ice shelves, so I expect it will be chewed out eventually.

So when the northern part of the Larsen B ice shelf collapsed into the sea in March 2002, it was not a total surprise.

So long as an ice sheet gains an equal mass through snowfall as it loses through melt, ablation, and calving from glaciers and ice shelves, it is said to be in balance.

CH, if you have some idea of what is going to happen with the extra 5 W / m2 forcing in the 21st century, you need to say it, because otherwise people will just think it will simply get warmer like the last time the earth had so much CO2 which was in the Eocene epoch (a pre-Antarctic ice shelf period).

It is the first winter ice loss of an ice shelf ever observed, and so was surprising.

Hamish Pritchard prepares us, «In most places in Antarctica, we can't explain the ice - shelf thinning through melting of snow at the surface, so it has to be driven by warm ocean currents melting them from below.

You see, NASA researchers say this latest iceberg is part of a natural cycle seen every 10 years or so on this particular glacier... «ocean measurements near Antarctica's Pine Island Glacier showed that the ice shelf buttressing the glacier was melting rapidly.

Loss of so large a section of ice from Larsen C threatens the entire ice shelf's stability.

Yet, since on rare occasion they have not seen it because it is so obvious it is worth asking about and one might even learn something Worse, in Eli's case, this is something that finally percolated through because of nonsense that Andrew Montford at Bishop Hill wrote trying to handwave the weird ice coverage this winter up north (yes, Eli knows everybunny and his brother in law is racing south to watch the Antarctic ice shelves collapse, but this is Rabett Run, Eli and Brian follow their own pipers).

«The ice shelves buttress the flow from grounded ice into the ocean, and that flow impacts sea - level rise,» Fricker said, «so that's a key concern from our new study.»

To do so, they had to add two additional, less well - studied mechanisms to their model: «ice - shelf hydrofracturing» and «marine ice - cliff instability.»

Where the ice shelves have collapsed some of the glaciers have apparently tripled their speed so on the edges there is a downward grade in spots (as evidenced from the topology map...

Okay, so if a part of an ice cap (or glacier) is grounded on the sea bed (below sea level) that part is not defined as an ice shelf.

in 2008, the Wilkins Ice shelf began collapsing; its ice bridge to Charcot Island failed in 2009, and it is continuing to lose area; in 2010 so far, the period from January to June is the warmest six months on recoIce shelf began collapsing; its ice bridge to Charcot Island failed in 2009, and it is continuing to lose area; in 2010 so far, the period from January to June is the warmest six months on recoice bridge to Charcot Island failed in 2009, and it is continuing to lose area; in 2010 so far, the period from January to June is the warmest six months on record.

For example, the argument that follows very substantially from the extent of continental shelf that there is within the Arctic Basin and, therefore, the particular relationship that warming on that relatively shallow sea has on trapped methane - for example, the emergence of methane plumes in that continental shelf, apparently in quite an anomalous way - leading possibly to the idea that there may be either tipping points there or catastrophic feedback mechanisms there, which could then have other effects on things, such as more stabilised caps like the Greenland ice cap and so on.