SLIDE 1
Comparison of a Deepwater Hindcast to Directional Wave Spectra Measured with an ADCP
William Dally & Carolina Burnette
University of North Florida
Andrew Cox
Oceanweather, Inc.
SLIDE 2 Outline
- 1. Motivation
- 2. The Experiment of Opportunity: MSC vs. ADCP
- 3. Basic Observations
- 4. Time Series of Frequency Spectra
- 5. Time Series of Directional Distributions
- 6. Spot Checks
- 7. Averaged Results
- 8. Conclusions & Future Work
SLIDE 3
Motivation
SLIDE 4 Depth contours in meters ~ 24 km
MSC 6914
SLIDE 5
SLIDE 6
Motivation: Long-term nearshore wave climate
SLIDE 7
Sxy/Sxy(max)
SLIDE 8
The Experiment of Opportunity
SLIDE 9
30 km
SLIDE 10
24.5 m depth 1200 kHz
SLIDE 11
Basic Parameter Observations – Deployment #1
SLIDE 12
Basic Parameter Observations – Deployment #2
SLIDE 13
MSC vs. ADCP Spectral Parameters
SLIDE 14
Time Series of Frequency Spectra
SLIDE 15
SLIDE 16
Time Series of Directional Distributions
SLIDE 17
SLIDE 18 Spot Checks – Frequency Spectra
1 3 2 4 5 6 1 2 3 4 5 6
SLIDE 19 7 8 9 10 11 12 7 8 9 10 11 12
SLIDE 20 Spot Checks – Directional Distributions
1 2 3 4 5 6 1 2 3 4 5 6
SLIDE 21 7 8 9 10 11 12 7 8 9 10 11 12
SLIDE 22
ADCP MSC Average of all Spectra
SLIDE 23 Conclusions & Future Work
- 1. The comparison of deepwater hindcasts to high-fidelity ADCP
measurements is encouraging.
- 2. Wave measurement technology/methodology has potentially
- utpaced modeling capabilities (good!).
- 3. The ADCP enables much greater directional resolution than can be
- btained with buoys. Spectral spreading due to wave-wave
interactions can be studied with greater confidence.
