In March 2000, an iceberg calved off the Ross Ice Shelf in Antarctica. Named B-15, it measured roughly 275 by 40 kilometers (170 by 25 miles). The iceberg subsequently broke into pieces, the largest of which was named B-15A. In October 2003, a new iceberg, B-15J, broke off from B-15A.
Although a fraction of the size of the Connecticut-sized B-15 iceberg, B-15J measured roughly 35 kilometers (22 miles) long in mid-November 2011. By then, it was floating in the southern Pacific Ocean, about 2,400 kilometers (1,500 miles) east-southeast of New Zealand. On November 25, 2011, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured this natural-color image of B-15J and a smaller iceberg, B-15Y.
Smaller icebergs, many of them shaped like slivers, float around B-15J and B-15Y on November 25. The MODIS image acquired 11 days earlier shows B-15J and B-15Y still together in one mass, but also shows crevasses, or cracks, along which the icebergs would split.
- National Ice Center. (n.d.). Current Antarctic Iceberg Positions. Accessed November 30, 2011.
- National Ice Center. (2011, November 23). Antarctic Icebergs, Ross Sea East, B15J, B15Y. Accessed November 30, 2011.
- Terra - MODIS - NASA