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The Whitney Glacier on Mt. Shasta is 3.9 km long, has an accumulation area of 0.75 km², and an ablation area of 0.85 km². The average accumulation rate is 4 m/yr. At its equilibrium line altitude (ELA) of 3,300 m elevation, the glacier's width is 300 m, its depth is 50 m, and its slope is 15°. Ice has a density of 900 kg/m³. 1. What is the steady-state flux of ice at the Whitney Glacier's ELA to the nearest m³/yr? 2. What is the glacier's average ablation rate to the nearest tenth of m/yr? 3. Assuming the Whitney Glacier has a rectangular cross section at its ELA, what is the average ice velocity at the ELA to the nearest m/yr? 4. What is the shear stress at the bed of the Whitney Glacier at its ELA, to the nearest kPa?

The Whitney Glacier on Mt. Shasta is 3.9 km long, has an accumulation area of 0.75 km², and an ablation area of 0.85 km². The average accumulation rate is 4 m/yr. At its equilibrium line altitude (ELA) of 3,300 m elevation, the glacier's width is 300 m, its depth is 50 m, and its slope is 15°. Ice has a density of 900 kg/m³. 1. What is the steady-state flux of ice at the Whitney Glacier's ELA to the nearest m³/yr? 2. What is the glacier's average ablation rate to the nearest tenth of m/yr? 3. Assuming the Whitney Glacier has a rectangular cross section at its ELA, what is the average ice velocity at the ELA to the nearest m/yr? 4. What is the shear stress at the bed of the Whitney Glacier at its ELA, to the nearest kPa?

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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The Whitney Glacier on Mt. Shasta is 3.9 km long, has an accumulation area of 0.75 km², and an ablation area of 0.85 km². The average accumulation rate is 4 m/yr. At its equilibrium line altitude (ELA) of 3,300 m elevation, the glacier's width is 300 m, its depth is 50 m, and its slope is 15°. Ice has a density of 900 kg/m³. 1. What is the steady-state flux of ice at the Whitney Glacier's ELA to the nearest m³/yr? 2. What is the glacier's average ablation rate to the nearest tenth of m/yr? 3. Assuming the Whitney Glacier has a rectangular cross section at its ELA, what is the average ice velocity at the ELA to the nearest m/yr? 4. What is the shear stress at the bed of the Whitney Glacier at its ELA, to the nearest kPa?
Transcribed Image Text:The Whitney Glacier on Mt. Shasta is 3.9 km long, has an accumulation area of 0.75 km², and an ablation area of 0.85 km². The average accumulation rate is 4 m/yr. At its equilibrium line altitude (ELA) of 3,300 m elevation, the glacier's width is 300 m, its depth is 50 m, and its slope is 15°. Ice has a density of 900 kg/m³. 1. What is the steady-state flux of ice at the Whitney Glacier's ELA to the nearest m³/yr? 2. What is the glacier's average ablation rate to the nearest tenth of m/yr? 3. Assuming the Whitney Glacier has a rectangular cross section at its ELA, what is the average ice velocity at the ELA to the nearest m/yr? 4. What is the shear stress at the bed of the Whitney Glacier at its ELA, to the nearest kPa?
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