Item: Pinpointing in a circle - an effective and reliable system for the precise location of deep burials
Title: Pinpointing in a circle - an effective and reliable system for the precise location of deep burials
Proceedings: Proceedings of the 2000 International Snow Science Workshop, October 1-6, Big Sky, Montana
Authors: Manuel Genswein
Abstract: When searching for avalanche victims with transceivers, up to ten misleading maximum amounts of volume which do not lead directly to the victim, can occur. The quantity of those misleading maximums depends on the relative antenna orientation. The distance between the real position of the victim and the misleading maximum is approx. equal to the burial depth. This effect does not influence the search strategy for an average burial depth, but it has an important impact on deep burials. Although spot probing helps in checking the exact position, it takes longer when the probing area is larger or not clearly defined. In this case, a transceiver-based pinpointing system is faster and more reliable. "Pinpointing in a Circle", which I developed in 1994 for advanced and professional users, has become part of the official training material of Switzerland's Federal Office of Sports.
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Keywords: avalanche rescue, pinpointing system, deep burials
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