Debris-flow monitoring in the Catalan Pyrenees. Lessons learnt ...
Debris-flow monitoring in the Catalan Pyrenees. Lessons learnt ...
Debris-flow monitoring in the Catalan Pyrenees. Lessons learnt ...
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De ebris-<strong>flow</strong><br />
monito or<strong>in</strong>g <strong>in</strong> <strong>the</strong> Pyren nees<br />
Monitor<strong>in</strong>g <strong>flow</strong> dynamics<br />
• Focus on ground vibration produced by pass<strong>in</strong>g debris <strong>flow</strong><br />
• geophones are trigger<strong>in</strong>g device of <strong>monitor<strong>in</strong>g</strong> system<br />
• key-issue for alarm systems<br />
• Different approaches to record ground vibration:<br />
• <strong>the</strong> ground velocity signal (GVS) is recorded by raw data<br />
• “WSL approach”: GVS is transformed <strong>in</strong>to impulse-per-second (IS) time<br />
series by def<strong>in</strong><strong>in</strong>g a ground velocity threshold <strong>in</strong> <strong>the</strong> signal conditioner<br />
• “French approach”: GVS transformation ti (<strong>in</strong>tegrat<strong>in</strong>g)<br />
ti BOZEN<br />
Abancó et al. (2012) - Sensors
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