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The VLAD Buoy and Ambient Noise

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Presentation on theme: "The VLAD Buoy and Ambient Noise"— Presentation transcript:

1 The VLAD Buoy and Ambient Noise
Ambient Noise in the Ocean Characteristics of Merchant Noise VLAD Basics Approaching the Data Lessons Learned…the hard way.

2

3 Arverson and Vendittis: Modern Ship Noise (J. Accoust Soc Am)

4

5 Pulled from the VLAD 77 Series Technical Manual

6

7 VLAD Acoustic Uplink Data Map

8 20 July 2006 Buoy drops and Wind Speed (m/s)
Buoy B: IVO Hoe Trapeze 02:55 Z, ubar = 2.5m/s Buoy C: IVO Azalea Galaxy 15:18 Z, ubar = 0.8m/s

9 22 July 2006 Buoy drops and Wind Speed (m/s)
Buoy G: IVO Theotokos 19:07 Z, ubar = 8.6m/s Buoy J: IVO Theotokos 02:55 Z, ubar = 7.5m/s

10 Buoy B: IVO Hoe Trapeze - Rng: Spd: 16kts, 149T (SE) RV Point Sur – 12nm, 10kts, 239T (WSW)

11 Buoy B: IVO Hoe Trapeze - Rng: Spd: 16kts, 149T (SE) RV Point Sur – 12nm, 10kts, 239T (WSW)

12 Buoy B: IVO Hoe Trapeze - Rng: Spd: 16kts, 149T (SE) RV Point Sur – 12nm, 10kts, 239T (WSW)
197Hz, 208Hz, 214Hz, 227Hz, 300Hz

13 Arverson and Vendittis: Modern Ship Noise (J. Accoust Soc Am)

14 Arverson and Vendittis: Modern Ship Noise (J. Accoust Soc Am)

15 Buoy B: IVO Hoe Trapeze - Rng: Spd: 16kts, 149T (SE) RV Point Sur – 12nm, 10kts, 239T (WSW)
Q T U J L R N P S K F E I M C D H B G A 1

16 Buoy C: IVO Azalea Galaxy - Spd: 16kts, 153T (SE) RV Point Sur – 11nm, 10kts, 064T (NE)

17 Buoy C: IVO Azalea Galaxy - Spd: 16kts, 153T (SE) RV Point Sur – 11nm, 10kts, 064T (NE)

18 Buoy C: IVO Azalea Galaxy - Spd: 16kts, 153T (SE) RV Point Sur – 11nm, 10kts, 064T (NE)
Fig 27 N O J H K M C D E F G I L A B

19 Buoy G: IVO Theotokos - Spd: 13kts, 325T (NW) RV Point Sur – 35
Buoy G: IVO Theotokos - Spd: 13kts, 325T (NW) RV Point Sur – 35.7nm, 8kts, 200T (SSW)

20 Buoy G: IVO Theotokos - Spd: 13kts, 325T (NW) RV Point Sur – 35
Buoy G: IVO Theotokos - Spd: 13kts, 325T (NW) RV Point Sur – 35.7nm, 8kts, 200T (SSW) Fig 84 G I C E H J L D F K A B

21 Buoy G: IVO Theotokos - Spd: 13kts, 325T (NW) RV Point Sur – 8
Buoy G: IVO Theotokos - Spd: 13kts, 325T (NW) RV Point Sur – 8.4nm, 8kts, 200T (SSW) Fig 1081 F J G I K D E L C H A B

22 Lessons Learned…the hard way
Research your topic before gathering data Know you equipment…inside and out You can never have “too much” metadata Pay a professional if you have the cash!

23 Questions?

24 B C G J

25

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