Examples of using Ice streams in English and their translations into Vietnamese
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The Antarctic Ice Sheet is drained to the sea by several ice streams.
Most ice streams have some water at their base, which lubricates the flow.
This means that the larger ice sheets simply have more ice streams and vice versa.
Radarsat image of ice streams, including the Rutford, flowing into the Filchner-Ronne Ice Shelf.
A different approach to predicting the future is to look to the past andsee how ice streams responded to previous periods of climate warming.
Ice streams in Greenland and West Antarctica are contributing to sea level rise which is likely to continue for at least the next century or so.
We then used an existing database to track the retreat of the ice sheet over time-and estimated when the ice streams switched on and off.
It is considered possible that ice streams such as seen in Antarctica today could have caused these sequences.
While it's relatively easy to estimate how much more melting might occur if air temperatures increase by say 2°C,nobody really knows what will happen to the ice streams.
We found ice streams switched off as the ice sheet retreated, having much less influence on the dynamics of the ice sheet.
Wild Arctic is a new attraction in Sea World, equal to visitors who revive the tradition of the sea world,providing you with a glimpse of the northern seas and ice streams.
Ice streams are a type of glacier.[1] They are significant features of the Antarctic where they account for 10% of the volume of the ice. .
In 2014, NASA reported that several major Antarctic ice streams, which hold enough water to trigger the equivalent of a one-and-a-half metre sea level rise, are now irreversibly in retreat.
Ice streams that drain the Greenland ice sheet into the sea include Helheim Glacier, Jakobshavn Isbræ and Kangerdlugssuaq Glacier.
The answer lies in ice streams, which are zones of the ice sheet that flow much faster than the surrounding ice at hundreds of metres per year.
The bed of the ice stream reaches 2,000 metres(6,600 ft) below sea level.
The ice stream is situated in a deep trough which is a tectonic feature between the Ellsworth Mountains and the Fletcher Promontory.
A fast-moving ice or ice stream is a region of an ice sheet that moves significantly faster than the surrounding ice. .
The speed of an ice stream can be over 1,000 metres(3,000 ft) per year, an order of magnitude faster than the surrounding ice. .
Unlike other large glaciers in Greenland,the Northeast ice sheet has an ice stream, which reaches more than 600km directly into its interior.
Due to the huge size of the Northeast Greenland ice stream, it has the potential to significantly change the total balance of the ice sheet overall in the near future.
In our paper, we reconstructed past ice stream activity, when an ice sheet the size of Antarctica disappeared over North America at the end of the last ice age between around 20,000 and 7,000 years ago.
The shear forces at the edge of the ice stream cause deformation and recrystallization of the ice, making it softer, and concentrating the deformation in narrow bands or shear margins.
As the surface seismic waves generated by the quake travelled around the world,they appear to have given the Whillans ice stream in West Antarctica a nudge, causing it to slide by about half a metre.
Flow speed reaches a maximum of around 400 metres peryear about 40 km inland from where the ice stream meets the Ronne Ice Shelf and starts to float on the sea.
When Walter and his colleagues were analysing GPS data from the ice stream on Monday, they noticed that one slip event had happened earlier than expected.
Our reconstruction clearly showed ice streaming is much more likely to take place when the ice sheet is in contact with the ocean and slides over a bed of soft, slippery sediments.
This shows that the collapse of the North American ice sheet was mostly caused by increased melting of the ice sheet's surface andnot necessarily by ice streaming.
Satellite measurements have shown that the Pine Island Glacier Basin has a greater net contribution of ice to the sea than any other ice drainage basin in the world andthis has increased due to recent acceleration of the ice stream.
Therefore, between the bed of the ice stream and the height of the Ellsworth Mountains there is a vertical relief of 7 kilometres(4.3 mi) over a distance of only 40 kilometres(25 mi).[2] At the upper(inland)end of the ice stream the ice thickness reaches 3,100 metres(10,200 ft) falling to around 2,300 metres(7,500 ft) in the trough.