Jan-Thomas Fischer | Researchain

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Featured researches published by Jan-Thomas Fischer.

IEEE Sensors Journal | 2016

Investigation of a mmWave-Radar-Based Sensor for Snow-Suspension Density Measurements

Christoph Baer; Timo Jaeschke; Jan-Thomas Fischer; Reinhard Fromm; Matthias Rauter; Stefan Achleitner; Nils Pohl

The precise and robust determination of snow-suspension densities is inevitable for the reliable prediction of the destruction potential of powder snow avalanches. Therefore, in this letter, a novel sensor approach for the snow-density determination is investigated. It relies on highly stable and fast time-of-flight measurements utilizing a highly accurate mmWave-radar system. Next to theoretical considerations on the applicability of dielectric mixing equations for snow-suspensions, first test measurements, that were carried out on super dilute snow-squalls, are presented and discussed in detail.

Journal of Glaciology | 2015

Multivariate parameter optimization for computational snow avalanche simulation

Jan-Thomas Fischer; Andreas Kofler; Wolfgang Fellin; Matthias Granig; Karl Kleemayr

Natural Hazards and Earth System Sciences | 2013

Computational snow avalanche simulation in forested terrain

Michaela Teich; Jan-Thomas Fischer; Thomas Feistl; Peter Bebi; Marc Christen; Adrienne Grêt-Regamey

Cold Regions Science and Technology | 2014

Evaluation of probabilistic snow avalanche simulation ensembles with Doppler radar observations

Jan-Thomas Fischer; Reinhard Fromm; Peter Gauer; Betty Sovilla

International Snow Science Workshop Grenoble – Chamonix Mont-Blanc - October 07-11, 2013 | 2013

The Full-Scale Avalanche Dynamics Test Site Vallée de la Sionne Betty

Betty Sovilla; Jim N. McElwaine; Walter Steinkogler; Martin Hiller; François Dufour; Emma Suriñach; Cristina Perez Guillen; Jan-Thomas Fischer; Emmanuel Thibert; Djebar Baroudi

Natural Hazards and Earth System Sciences | 2016

Snow avalanche friction relation based on extended kinetic theory

Matthias Rauter; Jan-Thomas Fischer; Wolfgang Fellin; Andreas Kofler

The Cryosphere Discussions | 2018

Cold-to-warm flow regime transition in snow avalanches

Anselm Köhler; Jan-Thomas Fischer; Riccardo Scandroglio; Mathias Bavay; Jim N. McElwaine; Betty Sovilla

International Journal of Solids and Structures | 2018

A mechanically-based model of snow slab and weak layer fracture in the Propagation Saw Test

Lorenzo Benedetti; Johan Gaume; Jan-Thomas Fischer

International Snow Science Workshop 2016 Proceedings, Breckenridge, CO, USA | 2016

Multivariate Parameter Optimization for Operational Application of Extended Kinetic Theory in Simulation Software

Andreas Kofler; Jan-Thomas Fischer; Andreas Huber; Wolfgang Fellin; Matthias Rauter; Matthias Granig; Elisabeth Hainzer; Christian Tollinger; Karl Kleemayr

International Snow Science Workshop 2014 Proceedings, Banff, Canada | 2014