NIVEXC TM AN ELECTRONIC SNOW-POLE FOR REAL-TIME MONITORING AN ELECTRONIC SNOW-POLE FOR REAL-TIME MONITORING OF AVALANCHE STARTING ZONES Massimiliano Barbolini Flow-Ing s.r.l. - Italy NIVEXC TM IS DESIGNED, PATENTED AND MANUFACTURED BY:
NIVEXC TM – Motivations 18 ° EAWS, Rome, 4th – 7th June 2015 Manual Snow Traditional snow NIVEXC TM Automatic Station Profile pole � � ☺ ☺ Aval. Starting Zones ☺ � � ☺ Real-Time / Bad Weather � ☺ � � / ☺ Internal SC properties NIVEXC TM IS DESIGNED, PATENTED AND MANUFACTURED BY:
NIVEXC TM – Technical Details 18 ° EAWS, Rome, 4th – 7th June 2015 1. ALUMINIUM MAIN FRAME The pole is made of an aluminium cold shaped hollow structural section (3 m long in the standard configuration) and a series of openings (“NIVEXC windows”) and coloured stripes along its length NIVEXC TM IS DESIGNED, PATENTED AND MANUFACTURED BY:
NIVEXC TM – Technical Details 18 ° EAWS, Rome, 4th – 7th June 2015 2. BRACING SYSTEM In order to reduce deflections and loads on the main pole, NIVEXC TM is provided with a double set of bracing system. NIVEXC TM IS DESIGNED, PATENTED AND MANUFACTURED BY:
NIVEXC TM – Technical Details 18 ° EAWS, Rome, 4th – 7th June 2015 3. FOUNDATION In order to reduce deflections and loads on the main pole, NIVEXC TM is provided with a double set of bracing system. NIVEXC TM IS DESIGNED, PATENTED AND MANUFACTURED BY:
NIVEXC TM – Technical Details 18 ° EAWS, Rome, 4th – 7th June 2015 4. DATA TRANSMISSION NIVEXC TM has been provided with a data transmission equipment which enables data transmission on three different types of communication network: RF Link channel, mobile network GPRS/UMTS and satellite network. NIVEXC TM IS DESIGNED, PATENTED AND MANUFACTURED BY:
NIVEXC TM – Technical Details 18 ° EAWS, Rome, 4th – 7th June 2015 5. BOX WITH BATTERY AND CONTROL UNIT Hardware and power supply units are installed underground in a waterproof box buried next to the pole. The power supply unit has a voltage of 12V and has been designed to withstand a full winter season with multiple daily records. NIVEXC TM IS DESIGNED, PATENTED AND MANUFACTURED BY:
NIVEXC TM – Technical Details 18 ° EAWS, Rome, 4th – 7th June 2015 SENSOR BOXES NIVEXC TM pole is provided with an array of windows. Each window is suited to hold a “sensor box” that includes three different types of sensors 1.TEMPERATURE SENSORS Temp. profile, gradient 2 2.OPTICAL SENSORS 1 1 Snow cover depth, precipit. rates Snow cover depth, precipit. rates 3. ELECTRODES 3 3 snow cover depth, density (?) Output data resolution can be adjusted by varying the gap between sensor boxes [Mod. 300/14 � 20 cm; Mod. 300/26 � 10 cm] NIVEXC TM IS DESIGNED, PATENTED AND MANUFACTURED BY:
NIVEXC TM – Real World Installation 18 ° EAWS, Rome, 4th – 7th June 2015 NIVEXC TM INSTALLATION SITES AND FIELD TESTING LYON Gressoney (AO) MILAN Tignes (FR) TURIN TURIN GENOA Valle Pesio (CN) NIVEXC TM IS DESIGNED, PATENTED AND MANUFACTURED BY:
NIVEXC TM – Field Testing 18 ° EAWS, Rome, 4th – 7th June 2015 GRESSONEY (AO) – P.TA SEEHORE EXP. SITE Research activity carried out in collaboration with: “RAVA” & “FONDAZIONE MONTAGNA SICURA” Period: Nov. 2013 – On going Altitude: 2’480 m a.s.l. Aspect: North Slope: 35 ° NIVEXC TM IS DESIGNED, PATENTED AND MANUFACTURED BY:
NIVEXC TM – Field Testing 18 ° EAWS, Rome, 4th – 7th June 2015 GRESSONEY (AO) – P.TA SEEHORE Data Validation – Snow Depth and Snow Precipitation 300 250 200 Height [cm] 150 85cm 100 50 0 05/11/2014 around 11.00am NIVEXC TM IS DESIGNED, PATENTED AND MANUFACTURED BY:
NIVEXC TM – Field Testing 18 ° EAWS, Rome, 4th – 7th June 2015 GRESSONEY (AO) – P.TA SEEHORE Data Validation – Temperature profile 300 250 200 [cm] Height [cm 150 Temperature Profile according to NIVEXC 100 Temperature Profile according to VDA survey Snow Depth according to 50 VDA survey Snow Depth according to NIVEXC 0 18/01/2015 9.00am -15 -10 -5 0 5 Temperature [°C] NIVEXC TM IS DESIGNED, PATENTED AND MANUFACTURED BY:
NIVEXC TM – Field Testing 18 ° EAWS, Rome, 4th – 7th June 2015 GRESSONEY (AO) – P.TA SEEHORE Research on avalanche forecasting (precursors and thresholds) – ongoing activity 12 Spontaneous Av. Releases - winter seasons 2013/14 and 10 2014/15 [avalanche data: Regione 8 ity (cm/h) Autonoma Valle d’Aosta] Intensity 6 6 4 2 0 0 6 12 18 24 30 Duration (h) NIVEXC TM IS DESIGNED, PATENTED AND MANUFACTURED BY:
NIVEXC TM – Field Testing 18 ° EAWS, Rome, 4th – 7th June 2015 TIGNES (FR) Research activity carried out in collaboration with “TAS” Period: Feb. 2014 – On going Altitude: 2’560 m a.s.l. Aspect: West Slope: 40 ° NIVEXC TM IS DESIGNED, PATENTED AND MANUFACTURED BY:
NIVEXC TM – Field Testing 18 ° EAWS, Rome, 4th – 7th June 2015 TIGNES (FR) Detection of successful blasting Images of the slope taken by the Tignes webcam (“Tignes – Le Lac”) Red Circle indicates the Nivexc location 14/04/2015, 5:50 p.m. 14/04/2015, 6:00 p.m. before Gaz-ex shot After Gaz-ex shot NIVEXC TM IS DESIGNED, PATENTED AND MANUFACTURED BY:
NIVEXC TM – Field Testing NIVEXC TM IS DESIGNED, PATENTED AND MANUFACTURED BY: TIGNES (FR) Detection of successful blasting Ds [cm] Ds 100 150 50 0 01/04/2015 h:06 01/04/2015 h:18 02/04/2015 h:06 02/04/2015 h:18 03/04/2015 h:06 03/04/2015 h:18 04/04/2015 h:06 04/04/2015 h:18 05/04/2015 h:06 05/04/2015 h:18 06/04/2015 h:06 06/04/2015 h:18 07/04/2015 h:06 07/04/2015 h:18 08/04/2015 h:06 08/04/2015 h:18 Ds trend 09/04/2015 h:06 Time [day/h] 09/04/2015 h:18 10/04/2015 h:06 10/04/2015 h:18 11/04/2015 h:06 11/04/2015 h:18 12/04/2015 h:06 12/04/2015 h:18 13/04/2015 h:06 13/04/2015 h:18 18 ° EAWS, Rome, 4th – 7th June 2015 14/04/2015 h:06 G GAZ-EX SHOT 14/04/2015 h:18 15/04/2015 h:06 15/04/2015 h:18 16/04/2015 h:06 16/04/2015 h:18 17/04/2015 h:06 17/04/2015 h:18 18/04/2015 h:06 18/04/2015 h:18 19/04/2015 h:06
NIVEXC TM – Conclusions 18 ° EAWS, Rome, 4th – 7th June 2015 Main advantage of NIVEXC TM pole: - “stand-alone” tools suitable for installation in av. starting zones and for real-time monitoring (in any weather condition) - structural simplicity and robustness (all sensors are located inside the pole and protruding element of any type, including solar panel, are avoided) ensure an easy installation and minimum maintenance an easy installation and minimum maintenance - reliability (the measure of most important parameter, the total snow cover depth, can be cross-validated with data from three different types of sensors) - flexibility of use (length of pole and number of sensor boxes can be adjusted; frequency of measure can be remotely varied during winter season) NIVEXC TM IS DESIGNED, PATENTED AND MANUFACTURED BY: 17
www.flow-ing.com/nivexc Grazie per la cortese attenzione Thanks for your kind attention Merci pour votre aimable attention Merci pour votre aimable attention Gracias por su atención Danke für Ihre freundliche Aufmerksamkeit Special Thanks: Ente Parco Naturale del Marguareis Regione Autonoma Valle d’aosta Fondazione Montagna Sicura Università di Torino - NatRisk TAS/MND
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