| View Larger Image | Modelling the advance-retreat cycle of a tidewater glacier with simple sediment dynamics [An article from: Global and Planetary Change] | Digitalby J. Oerlemans (Author), F.M. Nick (Author)
| List Price: | $7.95 | | | Available: | Available for download now |
| | Binding: | Digital | | Publisher: | Elsevier | | Page Count: | 12 Pages | | Publication Date: | April 01, 2006 |
|
EDITORIAL REVIEWS |
Product Description
This digital document is a journal article from Global and Planetary Change, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.Description: We present a simple coupled glacier-sediment model to simulate the evolution of a tidewater glacier. The model is based on a consideration of the total mass budget of a glacier, whereas ice mechanics are fully parameterized. The calving rate at the glacier terminus is assumed to be proportional to the water depth. We show that the formation of a morainic shoal has a profound influence on the response of a tidewater glacier to climatic forcing. For a slow periodic forcing of the equilibrium-line altitude, the model glacier advances steadily into the estuary, builds up a submarine terminal moraine, and then retreats rapidly when a critical point is hit. For a slowly increasing equilibrium-line altitude, at a rate as low as 1 m per 5 years, we find terminus retreat rates of up to 10 km in 50 years. Our model suggests that, although the response of tidewater glaciers to external forcing is strongly nonlinear, the onset of retreat is controlled by climate change. |
|
![Modelling the advance-retreat cycle of a tidewater glacier with simple sediment dynamics [An article from: Global and Planetary Change]](http://ecx.images-amazon.com/images/I/51S4KSB9MHL._SL160_.jpg)
