Saturday, February 6, 2010
ICEBERGS! by Barry
So I started doing some research on icebergs, and I found out that there is far more to be learned about them than I had ever imagined. In fact, there's probably more to say about them than will fit in one short blog entry, but I'll do my best to hit the high points, so to speak.
The tallest iceberg in the North Atlantic was 550 feet above sea level, which is as tall as a 55-story building. In general, though, icebergs range in height from 3 to 250 feet and weigh 100,000 to 200,000 tons. The North Atlantic ones can move about 10 miles a day.
Iceberg B-15 11,000 square kilometers, 2000
Iceberg B-15A 3,100 sq km (1,200 sq mi), broke off 2003
Iceberg C-19 5,500 sq km, 2002
Iceberg B-9 5,390 sq km, 1987
Iceberg D-16 120 sq mi, 2006
Iceberg B-17B 140 sq km (54 sq mi), 1999, shipping alert issued Dec. 2009
Non-tabular icebergs come in lots of different shapes, including dome, pinnacle, wedge, dry-dock, or blocky.
Because of global warming, Antarctica's ice shelves are shrinking and splitting, which means that icebergs are becoming even more common there. If you are worried about running into an iceberg in that region, you can go to this website to get the latest information from the National Oceanic and Atmospheric Administration: http://www.natice.noaa.gov/products/iceberg/
Anyway, I guess that's all I'm going to tell you about icebergs. Right now I sort of feel like going and sitting in front of a heater.