That earlier warming was associated with a large calving event of the Pine Island Glacier that likely occurred in association with an EL Nino event. (landscapesandcycles.net)
In October 2011, researchers flying in NASA's Operation IceBridge campaign made the first - ever detailed, airborne measurements of a major iceberg calving event while it was in progress. (spaceref.com)
These observations are being collected in our project over a period of several years as we build up a statistical data base of calving events. (dotearth.blogs.nytimes.com)