Geometry and flow conditions of subglacial water at South Cascade Glacier, Washington State, USA; an analysis of tracer injections
Journal of Glaciology
By: A. G. Fountain
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Abstract
The comparison between the travel time of the tracers and stream discharge indicated that the single conduit was pressurized in July and partly filled in August and September. To estimate the flow geometry (e.g. path length, flow depth and velocity), the advection-diffusion equation was formulated to express the water velocity as a function of water depth. Longitudinal dispersion of the tracer was calculated from the shear in longitudinal water velocity. Results indicate that the flow is very wide compared to its depth and that the path is sinuous. The estimated flow speed in the conduits is an order of magnitude larger than the measured speed through the glacier, indicating that other flow processes, probably englacial, route the water much more slowly. -from Author
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Geometry and flow conditions of subglacial water at South Cascade Glacier, Washington State, USA; an analysis of tracer injections |
| Series title | Journal of Glaciology |
| Volume | 39 |
| Issue | 131 |
| Year Published | 1993 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Journal of Glaciology |
| First page | 143 |
| Last page | 156 |
| Google Analytic Metrics | Metrics page |