HOME >> BIOLOGY >> NEWS
Huge Antarctic iceberg makes a big splash on sea life

NASA satellites observed the calving, or breaking off, of one of the largest icebergs ever recorded, named "C-19."

C-19 separated from the western face of the Ross Ice Shelf in Antarctica in May 2002, splashed into the Ross Sea, and virtually eliminated a valuable food source for marine life. The event was unusual, because it was the second-largest iceberg to calve in the region in 26 months.

Over the last year, the path of C-19 inhibited the growth of minute, free-floating aquatic plants called phytoplankton during the iceberg's temporary stopover near Pennell Bank, Antarctica. C-19 is located along the Antarctic coast and has diminished little in size. Since phytoplankton is at the base of the food chain, C-19 affects the food source of higher-level marine plants and animals.

Kevin R. Arrigo and Gert L. van Dijken of Stanford University, Stanford, Calif., used chlorophyll data from NASA's Sea-viewing Wide Field-of-view Sensor (SeaWiFS). The instrument, on the OrbView-2 satellite, also known as SeaStar, was used to locate and quantify the effects of C-19 on phytoplankton. The researchers were able to pinpoint iceberg positions by using images from the Moderate Resolution Imaging Spectroradiometer (MODIS), an instrument aboard NASA's Terra and Aqua satellites. The findings from this NASA-funded study appeared in a recent issue of the American Geophysical Union's Geophysical Research Letters.

C-19 is about twice the size of Rhode Island. When it broke off the Ross Ice Shelf, the iceberg was 32 km (almost 20 miles) wide and 200 km (124 miles) long. It was not as large as the B-15 iceberg that broke off of the same ice shelf in 2001 but among the largest icebergs ever recorded.

Since it was so large, C-19 blocked sea ice from moving out of the southwestern Ross Sea region. The blockage resulted in unusually high sea-ice cover during the spring and summer. Consequently, light was blocked. Phytoplankton blooms that occur on the o
'"/>

Contact: Rob Gutro
rgutro@pop900.gsfc.nasa.gov
301-286-4044
NASA/Goddard Space Flight Center
1-Oct-2003


Page: 1 2

Related biology news :

1. Dispute over life in Antarctic lake
2. Design competition for new Antarctic Research Station
3. The Hunters Breath tells a story of adventure and discovery in Antarctica
4. Antarctic fish study may aid cardiac research
5. A lost world: Two previously unknown dinosaurs discovered in Antarctica
6. Abandoned penguin colonies may help refine Antarctic climate studies
7. British Antarctic Survey wins environment award
8. Explanation offered for Antarcticas blood falls
9. Antarctic penguins thrive in ocean oases
10. Huge iceberg wreaks havoc on Antarctic marine ecosystem, study finds
11. Antarctic animals are under threat from illegal fishing

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


(Date:9/7/2018)... ... September 06, 2018 , ... CTL Medical Corporation has entered ... spine business, which includes its complete portfolio of spine-related patents and 510ks, as ... it. The deal will make CTL Medical the world’s exclusive provider of silicon ...
(Date:8/31/2018)... ... August 30, 2018 , ... ... times as a component of drug discovery programs. Longer-target engagement can result in ... are low throughput, require expensive instrumentation, or require the alteration of the molecules ...
(Date:8/29/2018)... ... August 28, 2018 , ... Johanna Dwyer, founder ... recognizes women of excellence in the field of intellectual property, and named Daniela ... Women in IP Award aims to encourage and support women in their pursuit ...
Breaking Biology News(10 mins):
(Date:8/29/2018)... ... August 28, 2018 , ... ... of contact lenses, has been ranked in 1138th place on the 27th annual ... , The list represents the most successful companies within the American economy’s ...
(Date:8/29/2018)... ... 28, 2018 , ... LabRoots , the leading provider of interactive virtual ... announce the launch of a new gamification feature, allowing users to earn points by ... LabRoots most popular shirts. , Throughout each month, LabRoots users will earn points by ...
(Date:8/26/2018)... LINDA, Calif. (PRWEB) , ... August 23, 2018 ... ... virtual events for tech innovators, engineers, and scientists from around the world, will ... Immunology 2018 will cover an array of industries and disciplines, encompassing various research ...
(Date:8/23/2018)... ... August 22, 2018 , ... Crucial Data Solutions, Inc. ... it the first fully-featured app for electronic data capture (EDC) and electronic participant ... constitute 99 percent of the market share for mobile devices worldwide; in turn, ...
Breaking Biology Technology:
Cached News: