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Field experiments to determine hydraulic friction and heat transfer in englacial R-channels
En- and subglacial water drainage is an important glaciological process. Amongst other, the water flow is understood to happen in so called R-channels. The aim of the thesis is to measure some fundamental parameters of these features directly in the field.
Keywords: Glaciology, glacier hydrology, field experiments
En- and subglacial water drainage is an important glaciological process. Amongst others, it controls the rate by which water is released during glacier lake outburst floods, and has an impact on macroscopic glacier dynamics. One of the key theories in en- and subglacial drainage is flow through so-called R-channels - that are ice-walled channels who increase their size through wall-melt and shrink due to ice deformation. Two of the key parameters of such channels are their hydraulic friction and heat transfer. Neither of the two has been measured so far.
En- and subglacial water drainage is an important glaciological process. Amongst others, it controls the rate by which water is released during glacier lake outburst floods, and has an impact on macroscopic glacier dynamics. One of the key theories in en- and subglacial drainage is flow through so-called R-channels - that are ice-walled channels who increase their size through wall-melt and shrink due to ice deformation. Two of the key parameters of such channels are their hydraulic friction and heat transfer. Neither of the two has been measured so far.
This project aims to rectify the bove, and will conduct corresponding measurements in the field. The project consists of a two-week field campaign on Rhonegletscher, Switzerland, where the measurements are conducted, and the subsequent evaluation and interpretation of the data. The aim is to obtain values for the hydraulic friction (Darcy-Weisbach factor) and the heat transfer rate between water and ice.
This project aims to rectify the bove, and will conduct corresponding measurements in the field. The project consists of a two-week field campaign on Rhonegletscher, Switzerland, where the measurements are conducted, and the subsequent evaluation and interpretation of the data. The aim is to obtain values for the hydraulic friction (Darcy-Weisbach factor) and the heat transfer rate between water and ice.
For further information please contact Dr. Mauro Werder (werder@vaw.baug.ethz.ch).
For further information please contact Dr. Mauro Werder (werder@vaw.baug.ethz.ch).