HOME >> BIOLOGY >> NEWS
Earth from Space: Iceberg knocks the block off Drygalski Ice Tongue

An enormous iceberg, C-16, rammed into the well-known Drygalski Ice Tongue, a large sheet of glacial ice and snow in the Central Ross Sea in Antarctica, on 30 March 2006, breaking off the tongue's easternmost tip and forming a new iceberg.

This animation, comprised of images acquired by Envisat's Advanced Synthetic Aperture Radar (ASAR), shows the iceberg and the ice tongue before and after the collision. On 26 March, C-16 was pinned at the southern edge of the ice tongue but had started migrating by 27 March. The collision on 30 March shows the ice tongue breaking off, and the final image on 1 April captures C-16 and the new iceberg swinging to the other side of the ice tongue.

Mark Drinkwater of ESA's Ocean and Ice Unit said: "During its passage to the coastal foot of the Drygalski Ice Tongue, C-16, which measures 18.5 kilometres by 55 kilometres, looped into and around McMurdo Sound before being carried quickly to the north.

"The surface ocean currents appear to have predominantly steered the iceberg, not the winds, thus telling us about important aspects of the adjustment in the ocean circulation since the departure of large grounded icebergs off Ross Island."

The floating Drygalski Ice Tongue, which protrudes 80 kilometres into the ocean, is connected to the David Glacier. If it were to break loose, scientists fear it could alter ocean currents and change the region's climate.

C-16 was formed in 2000 when Iceberg B-15A, measuring 27 kilometres by 161 kilometres, bumped into the jutting edge of the Ross Ice Shelf and snapped a large piece off. The new iceberg, originally named B-20 and later changed to C-16, then ran aground north of Ross Island. Over the last three months it had escaped its perch and made its way north where it collided with the ice tongue last week.

The National Ice Center (NIC), located in Maryland, USA, names icebergs according to the quadrant in which they are originally sighted. There are
'"/>

Contact: Mariangela D'Acunto
mariangela.dacunto@esa.int
39-069-418-0856
European Space Agency
7-Apr-2006


Page: 1 2

Related biology news :

1. What we can learn from the biggest extinction in the history of Earth
2. Chickens also orient themselves by the Earths magnetic field
3. Scientists ponder plant life on extrasolar Earthlike planets
4. NASA-funded robotic sub makes final dive to reach bottom of Earths deepest sinkhole
5. ESA presents the sharpest ever satellite map of Earth
6. 3.2 billion-year-old surprise: Earth had strong magnetic field
7. Prototype space probe prepares to explore Earths deepest sinkhole
8. Worlds oldest rocks show how Earth may have dodged frozen fate of Mars
9. Climate change only one symptom of a stressed planet Earth
10. Researchers identify a heartbeat in Earths climate
11. Symposium Changes on Earth honors Yale Geologist Robert Berner

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/13/2016)... 13, 2016  IMPOWER physicians supporting Medicaid patients in ... new clinical standard in telehealth thanks to a new ... higi platform, IMPOWER patients can routinely track key health ... mass index, and, when they opt in, share them ... to a local retail location at no cost. By ...
(Date:3/22/2016)... 2016 According to ... for Consumer Industry by Type (Image, Motion, Pressure, ... & IT, Entertainment, Home Appliances, & Wearable ... 2022", published by MarketsandMarkets, the market for ... USD 26.76 Billion by 2022, at a ...
(Date:3/15/2016)... 15, 2016 --> ... Transparency Market Research "Digital Door Lock Systems Market - Global ... 2023," the global digital door lock systems market in terms ... and is forecast to grow at a CAGR of 31.8% ... and medium enterprises (MSMEs) across the world and high industrial ...
Breaking Biology News(10 mins):
(Date:4/29/2016)... Irvine, CA (PRWEB) , ... April 29, 2016 ... ... research leader in personalized pain medicine, is excited to announce the launch of ... to supporting public health studies, volunteerism, and education to promote the use of ...
(Date:4/29/2016)... ... April 29, 2016 , ... Summit for Stem Cell has received ... of a patient-specific stem cell therapy for the treatment of Parkinson’s disease. The Summit ... Loring at The Scripps Research Institute in San Diego, CA. , The ...
(Date:4/28/2016)... YORK , April 28, 2016 ... acceleration company reports the Company,s CEO  was featured ... titled Accelerators Enter When VCs Fear To Tread: ... Science Leader magazine is an essential ... for everything from emerging biotechs to Big Pharmas. ...
(Date:4/28/2016)... ... 2016 , ... Morris Midwest ( http://www.morrismidwest.com ), a division ... its Maple Grove, Minnesota technical center, May 11-12. The event will feature ... 20 leading suppliers of tooling, accessories, software and other related technology will participate ...
Breaking Biology Technology:
Cached News: