Aval. Starting Zones Real-Time / Bad Weather - - PowerPoint PPT Presentation

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Aval. Starting Zones Real-Time / Bad Weather - - PowerPoint PPT Presentation

Apr 26, 2023 329 likes •518 views

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

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SLIDE 1

NIVEXCTM

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

NIVEXCTM IS DESIGNED, PATENTED AND MANUFACTURED BY:

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SLIDE 2

Automatic Station Manual Snow Profile Traditional snow pole

NIVEXCTM

NIVEXCTM – Motivations

18° EAWS, Rome, 4th – 7th June 2015

  • Aval. Starting

Zones

  • ☺

☺

Real-Time / Bad Weather

☺

  • ☺

Internal SC properties

  • ☺
  • /☺

NIVEXCTM IS DESIGNED, PATENTED AND MANUFACTURED BY:

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SLIDE 3

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

  • 1. ALUMINIUM MAIN FRAME

NIVEXCTM – Technical Details

18° EAWS, Rome, 4th – 7th June 2015

NIVEXCTM IS DESIGNED, PATENTED AND MANUFACTURED BY:

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SLIDE 4

In order to reduce deflections and loads

  • n the main pole, NIVEXC TM is provided

with a double set of bracing system.

  • 2. BRACING SYSTEM

NIVEXCTM – Technical Details

18° EAWS, Rome, 4th – 7th June 2015

NIVEXCTM IS DESIGNED, PATENTED AND MANUFACTURED BY:

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SLIDE 5

In order to reduce deflections and loads

  • n the main pole, NIVEXC TM is provided

with a double set of bracing system.

  • 3. FOUNDATION

NIVEXCTM – Technical Details

18° EAWS, Rome, 4th – 7th June 2015

NIVEXCTM IS DESIGNED, PATENTED AND MANUFACTURED BY:

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SLIDE 6

NIVEXCTM 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.

  • 4. DATA TRANSMISSION

NIVEXCTM – Technical Details

18° EAWS, Rome, 4th – 7th June 2015

NIVEXCTM IS DESIGNED, PATENTED AND MANUFACTURED BY:

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SLIDE 7
  • 5. BOX WITH BATTERY AND CONTROL UNIT

NIVEXCTM – Technical Details

18° EAWS, Rome, 4th – 7th June 2015

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.

NIVEXCTM IS DESIGNED, PATENTED AND MANUFACTURED BY:

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SLIDE 8

SENSOR BOXES

NIVEXCTM 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.OPTICAL SENSORS Snow cover depth, precipit. rates 1 2

NIVEXCTM – Technical Details

18° EAWS, Rome, 4th – 7th June 2015

Snow cover depth, precipit. rates

  • 3. ELECTRODES

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]

1 3 3

NIVEXCTM IS DESIGNED, PATENTED AND MANUFACTURED BY:

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SLIDE 9

NIVEXCTM INSTALLATION SITES AND FIELD TESTING NIVEXCTM – Real World Installation

18° EAWS, Rome, 4th – 7th June 2015

Tignes (FR) Gressoney (AO) MILAN TURIN LYON Valle Pesio (CN) GENOA TURIN

NIVEXCTM IS DESIGNED, PATENTED AND MANUFACTURED BY:

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SLIDE 10

Research activity carried out in collaboration with: “RAVA” & “FONDAZIONE MONTAGNA SICURA”

GRESSONEY (AO) – P.TA SEEHORE EXP. SITE

NIVEXCTM – Field Testing

18° EAWS, Rome, 4th – 7th June 2015

Period:

  • Nov. 2013 – On going

Altitude: 2’480 m a.s.l. Aspect: North Slope: 35°

NIVEXCTM IS DESIGNED, PATENTED AND MANUFACTURED BY:

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SLIDE 11

150 200 250 300

Height [cm]

Data Validation – Snow Depth and Snow Precipitation

GRESSONEY (AO) – P.TA SEEHORE

NIVEXCTM – Field Testing

18° EAWS, Rome, 4th – 7th June 2015

50 100

85cm

05/11/2014

around 11.00am

NIVEXCTM IS DESIGNED, PATENTED AND MANUFACTURED BY:

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SLIDE 12

Data Validation – Temperature profile

GRESSONEY (AO) – P.TA SEEHORE

NIVEXCTM – Field Testing

18° EAWS, Rome, 4th – 7th June 2015

200 250 300

[cm]

NIVEXCTM IS DESIGNED, PATENTED AND MANUFACTURED BY: 50 100 150

  • 15
  • 10
  • 5

5

Height [cm Temperature [°C]

Temperature Profile according to NIVEXC Temperature Profile according to VDA survey Snow Depth according to VDA survey Snow Depth according to NIVEXC

18/01/2015 9.00am

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SLIDE 13

Research on avalanche forecasting (precursors and thresholds) – ongoing activity

GRESSONEY (AO) – P.TA SEEHORE

NIVEXCTM – Field Testing

18° EAWS, Rome, 4th – 7th June 2015

6 8 10 12

ity (cm/h)

Spontaneous Av. Releases - winter seasons 2013/14 and 2014/15 [avalanche data: Regione Autonoma Valle d’Aosta]

NIVEXCTM IS DESIGNED, PATENTED AND MANUFACTURED BY: 2 4 6 6 12 18 24 30

Intensity

Duration (h)

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SLIDE 14

Research activity carried out in collaboration with “TAS”

TIGNES (FR)

NIVEXCTM – Field Testing

18° EAWS, Rome, 4th – 7th June 2015

Period:

  • Feb. 2014 – On going

Altitude: 2’560 m a.s.l. Aspect: West Slope: 40°

NIVEXCTM IS DESIGNED, PATENTED AND MANUFACTURED BY:

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SLIDE 15

Detection of successful blasting

TIGNES (FR)

NIVEXCTM – Field Testing

18° EAWS, Rome, 4th – 7th June 2015

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. before Gaz-ex shot 14/04/2015, 6:00 p.m. After Gaz-ex shot

NIVEXCTM IS DESIGNED, PATENTED AND MANUFACTURED BY:

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SLIDE 16

Ds trend

100 150

Ds [cm]

Detection of successful blasting

TIGNES (FR)

NIVEXCTM – Field Testing

18° EAWS, Rome, 4th – 7th June 2015

GAZ-EX SHOT

50

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 09/04/2015 h:06 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 14/04/2015 h:06 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

Time [day/h] Ds

G

NIVEXCTM IS DESIGNED, PATENTED AND MANUFACTURED BY:

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SLIDE 17
  • “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

NIVEXCTM – Conclusions

18° EAWS, Rome, 4th – 7th June 2015

Main advantage of NIVEXCTM pole: 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)

17

NIVEXCTM IS DESIGNED, PATENTED AND MANUFACTURED BY:

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SLIDE 18

Grazie per la cortese attenzione Thanks for your kind attention Merci pour votre aimable attention

www.flow-ing.com/nivexc

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