Iceberg trajectory modeling and meltwater injection in the Southern Ocean
Article first published online: 20 SEP 2012
Copyright 2001 by the American Geophysical Union.
Journal of Geophysical Research: Oceans (1978–2012)
Volume 106, Issue C9, pages 19903–19915, 15 September 2001
How to Cite
2001), Iceberg trajectory modeling and meltwater injection in the Southern Ocean, J. Geophys. Res., 106(C9), 19903–19915, doi:10.1029/2000JC000347., , and (
- Issue published online: 20 SEP 2012
- Article first published online: 20 SEP 2012
- Manuscript Accepted: 12 FEB 2001
- Manuscript Received: 29 MAR 2000
This is the first large-scale modeling study of iceberg trajectories and melt rates in the Southern Ocean. An iceberg model was seeded with climatological iceberg calving rates based on a calculation of the net surface accumulation from each snow catchment area on the Antarctic continent. In most areas, modeled trajectories show good agreement with observed patterns of iceberg motion, though discrepencies in the Weddell Sea have highlighted problems in the ocean general circulation model output used to force the iceberg model. The Coriolis force is found to be important in keeping bergs entrained in the coastal current around Antarctica, and topographic features are important in causing bergs to depart from the coastal regions. The modeled geographic distribution of iceberg meltwater joining the ocean has been calculated and is found in many near-coastal regions to be comparable in magnitude to the excess of precipitation over evaporation (P-E).