Iceberg C-19 is an

iceberg An iceberg is a piece of fresh water ice more than long that has broken off a glacier or an ice shelf and is floating freely in open water. Smaller chunks of floating glacially derived ice are called "growlers" or "bergy bits". Much of an i ...

that calved from the

Ross Ice Shelf The Ross Ice Shelf is the largest ice shelf of Antarctica (, an area of roughly and about across: about the size of France). It is several hundred metres thick. The nearly vertical ice front to the open sea is more than long, and between high ...

in May 2002 on a fissure scientists had been watching since the 1980s. After that the Ross Ice Shelf returned to the size it was in 1911, when it was mapped by Robert F. Scott’s party. It was the second-largest iceberg to calve in the region in a few years (after B-15). It had a surface area larger than 5500 km². During 2002 C-19 prevented sea ice from moving out of the southwestern

Ross Sea The Ross Sea is a deep bay of the Southern Ocean in Antarctica, between Victoria Land and Marie Byrd Land and within the Ross Embayment, and is the southernmost sea on Earth. It derives its name from the British explorer James Clark Ross who ...

region and this blockage resulted in an unusually high sea ice level during spring and summer, thus provoking a huge reduction in

phytoplankton Phytoplankton () are the autotrophic (self-feeding) components of the plankton community and a key part of ocean and freshwater Aquatic ecosystem, ecosystems. The name comes from the Greek language, Greek words (), meaning 'plant', and (), mea ...

production which is at the base of the food chain. In summer 2003 C-19 moved northward very rapidly, passed Cape Adare, and broke in two pieces: C-19A and C-19B. In September 2005, after a two-year stay along the coast of

Victoria Land Victoria Land is a region in eastern Antarctica which fronts the western side of the Ross Sea and the Ross Ice Shelf, extending southward from about 70°30'S to 78th parallel south, 78°00'S, and westward from the Ross Sea to the edge of the Ant ...

(west of French station

Dumont d'Urville Jules Sébastien César Dumont d'Urville (; 23 May 1790 – 8 May 1842) was a French explorer and naval officer who explored the south and western Pacific, Australia, New Zealand and Antarctica. As a botanist and cartographer, he gave his name ...

) C-19A started drifting northward. In March 2006 its location was in the Pacific Ocean, 200 km west of Balleny Islands. In 2008, C-19A was renamed ''Melting Bob'' by Max Dolan as a result of a contest sponsored by the

Hay Festival The Hay Festival of Literature & Arts, better known as the Hay Festival (), is an annual literature festival held in Hay-on-Wye, Powys, Wales, for 10 days from May to June. Devised by Norman, Rhoda and Peter Florence in 1988, the festival was d ...

and the

Scott Polar Research Institute The Scott Polar Research Institute (SPRI) is a centre for research into the polar regions and glaciology worldwide. It is a sub-department of the Department of Geography in the University of Cambridge, located on Lensfield Road in the south ...

. As of May 2008, its surface area was approximately 5141 km².

References

{{Reflist C-19 Geography of Antarctica

See also

References