Sentences with phrase «iceberg calving at»
The icebergs calving at the fringe are like dandruff compared to the massive skull of ice stuck in the central basin.
https://dotearth.blogs.nytimes.com/ Not exact matches
One way to assess the health of ice sheets is to look at their balance: when an ice sheet is in balance, the ice gained through snowfall equals the ice lost through melting and iceberg calving.
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.
The image shows, at the lower center, a thousand - square - mile iceberg that calved off the huge Larsen Ice Shelf sometime in January or February.
«There's an entrenched view in the public community that glaciers only lose ice when icebergs calve off,» says Eric Rignot at the University of California, Irvine.
At its calving front, where the glacier effectively ends as it breaks off into icebergs, some of the ice melts while the rest is pushed out, floating into the ocean.
Unlike the great ice sheet of Antarctica, the Greenland ice sheet is melting both on its surface and also at outlet glaciers that drain the ice sheet's mass through deep fjords, where these glaciers extend out into the ocean and often terminate in dynamic calving fronts, giving up gigaton - sized icebergs at times.
Stresses from ice flowing over bedrock or around islands causes fracturing, and at the front edge of the ice this fracturing leads to iceberg calving.
As during the last ice age when sea levels were around 100 m lower icebergs were grounding at 44s, these would have calved from similar size as during the 2001 event (160kmx30km) hardly evidence of change.
If snowfall increases (as in some models), the mass of ice in Greenland and Antarctica may increase, even if there is more melting and calving of icebergs at the edges.
The mass balance at the calving front is the sum of the ice flux from upglacier, the rate of melting above and below the waterline and the iceberg - calving rate.
It is driven by poorly understood processes occurring at the ice - ocean interface, such as subglacial discharge into the ocean, turbulent plume dynamics, submarine melting, and iceberg calving.
He told Earther that initially, scientists wanted to gather information on surface melt in all seasons on the Larsen C ice shelf, which sits at the tip of the Antarctic Peninsula (you may remember it as the ice shelf the calved a trillion - ton iceberg last summer).
While «calving» of icebergs is a typical phenomenon, scientists monitoring the rift said a break would leave the 21,000 - square mile Larsen C at its most retreated position.