Ice-front change and iceberg behaviour along Oates and George V Coasts, Antarctica, 1912-96
Links
- More information: Publisher Index Page (via DOI)
- Open Access Version: Publisher Index Page
- Download citation as: RIS | Dublin Core
Abstract
Ice-front change may well be a sensitive indicator of regional climate change. We have studied the western Oates Coast from Cape Kinsey (158°50' E, 69°19' S) to Cape Hudson (153°45' Ε, 68°20' S) and the entire George V Coast, from Cape Hudson to Point Alden (142°02' E, 66°48' S). The glaciers here drain part of the Dome Charlie and Talos Dome areas (640 000 km2). A comparison between various documents, dated several years apart, has allowed an estimate of the surficial ice discharge, the ice-front fluctuation and the iceberg-calving flux during the last 50 years. The ice-front discharge of the studied coast has been estimated at about 90 ± 12 km3a−1 in 1989-91, 8.5 km3a−1 for western Oates Coast and 82 km3a−1 for George V Coast. From 1962-63 to 1973-74 the floating glaciers underwent a net reduction that continued from 1973-74 to 1989-91. On the other hand, from 1989-91 to 1996 the area of floating glaciers increased. Ninnis Glacier Tongue and the western part of Cook Ice Shelf underwent a significant retreat after 1980 and 1947, respectively. Satellite-image analysis of large icebergs has provided information about ice-ocean interaction and the existence of an “iceberg trap” along George V Coast. A first estimate of the mass balance of the drainage basin of Mertz and Ninnis Glaciers shows a value close to zero or slightly negative.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Ice-front change and iceberg behaviour along Oates and George V Coasts, Antarctica, 1912-96 |
| Series title | Annals of Glaciology |
| DOI | 10.3189/1998AoG27-1-643-650 |
| Volume | 27 |
| Year Published | 1998 |
| Language | English |
| Publisher | Cambridge University Press |
| Description | 8 p. |
| First page | 643 |
| Last page | 650 |
| Other Geospatial | Antarctica, George V Land, Oates Land |
| Google Analytic Metrics | Metrics page |