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dc.contributor.authorGauer, Peter
dc.contributor.authorLied, Karstein
dc.contributor.authorKristensen, Krister
dc.date.accessioned2023-09-18T06:01:14Z
dc.date.available2023-09-18T06:01:14Z
dc.date.issued2008
dc.identifier.urihttps://hdl.handle.net/11250/3089941
dc.description.abstractAvalanche measurements and observations, which were carried out at the Ryggfonn test-site, Norway, on 16 April 2005, are analyzed. The data include pulsed Doppler radar measurements, impact pressure readings from load cells mounted at two locations within the track and stress readings from load plates flush with the upstream slope of a catching dam. The radar measurements are used to deduce velocities and estimates on the retarding accelerations. The retarding accelerations show a wide discrepancy with commonly used model assumptions. Pressure measurements were correlated with velocity measurements. The measurements infer that commonly used drag factors are not sufficient to describe the forces exerted by slow moving wet snow. These measurements also depict transitions in the flow behavior. Measurements with load plates imply plastic failure rather than Coulomb-type friction. Field observations of the avalanche track suggest that erosion/abrasion due to (saltating) particles is one possible entrainment mechanism.en_US
dc.language.isoengen_US
dc.publisherMontana State University Libraryen_US
dc.relation.ispartofseriesThe International Snow Science Workshop (ISSW) Proceedings;
dc.subjectSnow Avalancheen_US
dc.subjectImpact Pressureen_US
dc.subjectShear Stressen_US
dc.subjectAvalanche-RnDen_US
dc.subjectSnøskred-FoUen_US
dc.subjectFull-Scale Measurementen_US
dc.titleOn avalanche measurements at the Norwegian full-scale test-site Ryggfonn.en_US
dc.typeChapteren_US
dc.source.pagenumber138-155en_US


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