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Advanced Radar Imaging of Geophysical Flows

Brennan, PV; Ash, M; Isa, FM; Keylock, C; Mcelwaine, J; (2009) Advanced Radar Imaging of Geophysical Flows. In: Trilling, L and Perkins, D and Dionysios, D and Perlovsky, L and Davey, K and Landgrebe, D and Marino, MA and Russell, DL and Collicott, SH and Ceccarelli, M and Lund, JW, (eds.) GES'09: PROCEEDINGS OF THE 3RD IASME/WSEAS INTERNATIONAL CONFERENCE ON RECENT AD GEOLOGY AND SEISMOLOGY. (pp. 144 - 147). WORLD SCIENTIFIC AND ENGINEERING ACAD AND SOC

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The dynamics of geophysical flows such as snow avalanches and pyroclastic flows are of great interest, not least due to their potential for catastrophic consequences, and have received substantial attention over recent years. A variety of models have been formulated to predict the behaviour of such flows but there is currently a lack of suitable experimental data to validate these models and inform the choice of model or coefficients for a given situation. Radar measurements are useful in, for instance, observation of snow avalanches in order to provide velocity vector information of the movements of snow below the powder cloud, thus providing information that is not available using optical instruments. Simple radar observations, consisting of a one-dimension range profile of low resolution, have been made of snow avalanches. This work sets out to develop and utilize a more sophisticated radar instrument able to perform high resolution 3-D images of, in particular, snow avalanches but also pyroclastic flows, in order to provide a step improvement in the observational data with which to compare with a range of flow laws.

Type: Proceedings paper
Title: Advanced Radar Imaging of Geophysical Flows
Event: 3rd IASME/WSEAS International Conference on Geology and Seismology
Location: Cambridge, ENGLAND
Dates: 2009-02-24 - 2009-02-26
ISBN-13: 978-960-474-058-1
Keywords: Snow, Avalanche, Pyroclastic, Flow, Radar, Imaging, Velocity, Vectors, GRANULAR FLOWS, SNOW, MASS, AVALANCHES, MOTION, MODEL
UCL classification: UCL > School of BEAMS
UCL > School of BEAMS > Faculty of Engineering Science
URI: http://discovery.ucl.ac.uk/id/eprint/130206
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