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Post by Chicago Astronomer Joe on Apr 18, 2005 16:39:15 GMT -6
Iceberg Smashes Off a Chunk of Antarctica
This is quite an event to be witnessing...
Summary - (Apr 18, 2005)
Scientists have been watching a huge iceberg called B-15A, after it split away from Antarctica almost 5 years ago. After drifting along the coast of the continent, it finally smashed into the 70 km Drygalski ice tongue, breaking off a large chunk. The ice tongue is such a well known feature of Antarctica that it appears on many maps (they'll need to be revised). B-15A, on the other hand, appears totally unaffected by the collision, and will continue to grind away at the tongue.
Post by Chicago Astronomer Joe on May 17, 2005 18:13:45 GMT -6
This hunk of ice has an attitude and is about ready to smash into another one again...
From Universe Today:
May 17, 2005 - Just a few weeks after smashing a chunk off Drygalski ice tongue, iceberg B-15A is still wreaking havoc off the coast of Antarctica.
Now it's about to crash into the Aviator Glacier - a 25 km (16 mile) long spear of ice stretching into the ocean. The European Space Agency's Envisat Earth observation satellite captured this image of B-15A just a few kilometres away from the crash. B-15A is the world's largest free floating object, which has been afloat for more than 5 years now, since it calved off the Ross Ice Shelf in March 2000.
It would be a great thing to capture as it smashes...watching it and hearing the crunch would be quite cool!
Chicago Astronomer Joe Founder, Administrator and Chief Astronomer
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Post by Chicago Astronomer Joe on Nov 7, 2005 19:56:17 GMT -6
Envisat Shows Behemoth B-15A Iceberg Breaking Up
Paris (ESA) Nov 08, 2005
After five years of being the world's largest free-floating object, the B-15A iceberg has broken into smaller pieces off Antarctica's Cape Adare. ESA's Envisat satellite's Advanced Synthetic Aperture Radar (ASAR) is sensitive to ice, and has been tracking the movement of the drifting ice object continuously since the beginning of this year. Its latest imagery reveals the bottle-shaped iceberg split into nine knife-shaped icebergs and a myriad of smaller pieces on 27-28 October, the largest being formed by fractures along the long axis of the original single iceberg.
Measuring – until last week - around 115 kilometres in length with an area exceeding 2500 square kilometres, the B-15A tabular iceberg had apparently run aground off Cape Adare, the northernmost corner of the Victoria Land Coast. This stranding appears to have led to flexing and straining which resulted in the break-up.