Sentences with phrase «calving event»

That earlier warming was associated with a large calving event of the Pine Island Glacier that likely occurred in association with an EL Nino event.

In October 2011, researchers flying in NASA's Operation IceBridge campaign made the first - ever detailed, airborne measurements of a major iceberg calving event while it was in progress.

These observations are being collected in our project over a period of several years as we build up a statistical data base of calving events.

When the shelf broke, she and colleagues predicted, it would be the largest calving event in decades.

On 16 July 2012 there was a significant calving event on the Peterman glacier that resulted in an ice island with an area of approximately 130 square kilometres (Figure 5).

Recent massive calving events at Larsen C's smaller neighbors do have a stronger link to climate change, though.

«In the ensuing months and years, the ice shelf could either gradually regrow, or may suffer further calving events which may eventually lead to collapse — opinions in the scientific community are divided.

Icebergs rarely form in this manner; in fact, large calving events happen just once every 40 — 50 years.

The record heat and melting coincided with a massive calving event at Petermann Glacier, which also occurred in mid July.

There is a risk that Larsen C may eventually follow the example of its neighbour, Larsen B, which disintegrated in 2002 following a similar rift - induced calving event in 1995.

«In the ensuing months and years, the ice shelf could either gradually regrow, or may suffer further calving events which may eventually lead to collapse — opinions in the scientific community are divided,» Luckman said.

When calving events happen too quickly in succession, the glacier - ice shelf system doesn't have time to rebalance, which can result in glaciers continuing to speed their flow, bringing more and more ice into the oceans and raising sea levels.

Larsen B collapsed shortly after its major calving event while the Wilkins ice shelf has continued to shed large chunks of ice since 2008.

Or is this just a normal calving event?»

«We've never had such tools as we have now to really measure what happens after big calving events.»

Other massive ice shelves have experienced destabilization after similar calving events.

«The ability to routinely monitor calving events is a new approach,» said Bruce Molnia, research geologist with the U.S. Geological Survey, who has written extensively on Alaska's glaciers and has documented their change over time.

Larsen C may follow a similar pattern, he says, although it's not clear how soon collapse might follow the imminent calving event.

Meltwater ponding on the surface and tidal flexure and plate bending then all contribute to rapid calving events and ice shelf disintegration.

The Jacobshavn glacier has slowed since the extraordinary surge in 2011 and 2012, the period when the «Chasing Ice» documentary team caught the largest documented ice calving event ever recorded (with the sound as hair prickling as the imagery).

They caught a fresh calving event and described the cleaved slab as being about the height of two Empire State Buildings.

If there were truly an increase in glacier calving events (due to warming or any other cause), the best evidence would be an increase in iceberg numbers starting in 1900 for example.

For example a large 1987 calving event removed 100 years of ice accumulation from the Ross Ice Shelf in just one day, an amount second only to the loss of the Larsen Ice Shelf.

Research has determined these episodic calving events are most often driven by periodic upwelling of warm Circumpolar Deep Water (CDW) that melts glaciers from below (basal melting).

While this event was natural and expected, scientists predict further calving events as temperatures rise, potentially unleashing several feet of sea level rise.

This was the second large calving event off this glacier in just two years: the iceberg that broke away in August 2010 was twice as large.

«If an ice shelf loses contact with the ice rise, either through sustained thinning or a large iceberg calving event, it can prompt a significant acceleration in ice speed, and possibly further destabilisation.

It also has some good shots of a couple of calving events.

It's the first time that researchers have been able to put boots on the ground so quickly after a massive calving event, and they have a lot of questions.

We have previously shown that the new configuration will be less stable than it was prior to the rift, and that Larsen C may eventually follow the example of its neighbour Larsen B, which disintegrated in 2002 following a similar rift - induced calving event.

A large calving event at the Zachariae glacier made the news in May 2013, and Khan and his team witnessed and filmed a similar event in July.

Teams of scientists are gearing up to race to the Antarctic Peninsula to find out what happens in the immediate aftermath of a massive ice calving event.

Detecting glacialquakes is important because glaciers appear to accelerate after large calving events.2 The frequency of glacialquakes — which has been rising since the late 1990s — has increased particularly since 2002.3 In fact, the number of quakes in 2005 was twice that of 2001.1 In late summer of 2005, glacial seismic activity was almost five times greater than in the winter months — most likely owing to seasonal changes in temperature.1, 3

Here is a paper in press which discuss the seismic effects to calving events in Greenland.

«With this large calving event, and the availability of satellite technology, we have a fantastic opportunity to watch this natural experiment unfolding before our eyes.

«So I just don't see any near - term signs that this calving event is going to lead to the collapse of the Larsen C ice shelf.

«A calving event is expected soon,» Adrian Luckman of Swansea University said in mid-March.

Their article asserts that a calving event is not necessarily due to changes in environmental conditions and may simply reflect the natural growth and decay cycle of an ice shelf.

Even relatively large calving events, where tabular ice chunks the size of Manhattan or bigger calve from the seaward front of the shelf, can be considered normal if the ice sheet is in overall balance.

«Now we want to understand how the ice shelf will react to this calving event.»

Their observations show that since the calving event, the berg has started to drift away from the Larsen - C, with open ocean clearly visible in the ~ 5 kilometre gap between the berg and the ice - shelf.

The team's next steps include looking more closely at specific ocean swell events and sea ice conditions during known ice shelf collapses and large iceberg calving events.

We will continue to monitor both the impact of this calving event on the Larsen C Ice Shelf, and the fate of this huge iceberg.