EBK GEOSYSTEMS
10th Edition
ISBN: 9780134621500
Author: Birkeland
Publisher: YUZU
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Question
Chapter 17, Problem 1GQ
To determine
To describe:
The ways by which the specific position of the firn line alter if a glacier receives more amount of snowfall at higher elevations.
Expert Solution & Answer
Explanation of Solution
Introduction:
The annual mass balance of the glacial system helps in the determination of the location of the equilibrium line.
The zone of deposition terminates at the firn line. It marks the specific elevation above which the winter’s snow and stays in contact with each other at the melting position throughout the summer. Deep down the firn line and at lower end of glacier, these glaciers are specifically subjected to wasting by several processes such as surface melting internally and at the base, sublimation, blocks of ice calving, and removal of ice due to the wind deflation.
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