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Austrian Group investigates correlation between avalanche emergencies and avalanche danger forecast
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Poster:
A snowHead
Poster:
A snowHead
The frequency of avalanche emergencies is disproportionate to the danger forecast in avalanche hazard bulletins, with the peak number of accidents (54%) happening when the forecast Avalanche risk was set at grade 3.
13% occurred when it was a Grade 2, 5.3% at grade 4, 1.3% at Grade 1 and none in this study occurred at Grade 5. (the risk level was unknown in 26% of cases)... The study reviewed official avalanche surveillance data and medical reports from helicopter-based emergency medical systems in the Tyrol, and looked at whether the frequency of avalanche accidents corresponds with the danger assessment given in avalanche hazard tables.
The newly published research from Innsbruck Medical University (Austria) also showed that most victims (78%) involved in avalanche accidents are ski tourers and off-piste skiers, about 90% are male, and that the ages of the victims range from 10 to more than 70 years. In 94% of accidents, the avalanches were triggered by victims themselves or by nearby recreationists.
About 33% of avalanche slides occurred on extremely steep slopes at gradients exceeding 40 degrees, and 25% occurred before midday.
All victims who were able to free themselves from avalanche burial survived. In all, about 40% were rescued by companions and 33% by organised rescue squads. Of 60 completely buried victims, 23 (38%) survived, 19 of whom were rescued by companions.
The scientists concluded that a modified and regionally adjusted grading is needed that makes allowance for experience and individual behaviour of recreationists taking part in backcountry leisure activities.
Citation: Rainer B et al. Correlation between avalanche emergencies and avalanche danger forecast in the alpine region of Tyrol. Eur J Emerg Med 2008 Feb;15:43-7.
Link to abstract:
http://www.ncbi.nlm.nih.gov/pubmed/18180666?ordinalpos=2&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum
Obviously
A snowHead
isn't a real person
Obviously
A snowHead
isn't a real person
www.ncbi.nlm.nih.gov/pubmed/15772502?ordinalpos=1&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVAbstractPlus
www.ncbi.nlm.nih.gov/pubmed/17689170?ordinalpos=1&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVAbstractPlus
Two further extracts, of interesting papers from this site.
Well, the person's real but it's just a made up name, see?
Well, the person's real but it's just a made up name, see?
What a SURPRISE !
On a scale of 1 to 5, 3 looks like AVERAGE.
Because 3 looks like average risk more people go off-piste hence this is why more people perish at level 3 than any other level.
The reality is 3 = CONSIDERABLE RISK !!
Last edited by Well, the person's real but it's just a made up name, see? on Fri 25-01-08 8:08; edited 2 times in total
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You need to
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but wht you really need to know is the numbers skiing at each risk level.
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Poster: A snowHead
