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Contributions to the Mine Burial Prediction Program, Office of Naval Research, Marine Geosciences Program. C.T. Friedrichs, Principal Investigator
Map view models for mine burial near MVCO and IRB sites during field experiment
Final model time-series during 2003-2004 field experiments near MVCO (waves, tides, wind currents) and IRB (waves, grain size, bathy, tidal currents) sites
Tidal current predictions for 2001-2004 near MVCO and IRB sites. Prediction of tidal plus wind-driven currents at MVCO
Long Term Goals
A major goal of the ONR Mine Burial Prediction (MBP) Program is to provide the operational Navy a prototype model for forecasting mine burial which works with a known and useful degree of accuracy in regions of strategic interest, defined initially as sandy inner shelves dominated by waves. In order to be useful under real world conditions, such a model must be reasonably accurate and reliable but also simple and fast enough to execute in a practical, straightforward manner by the Fleet. Thus it must parameterize the complicated and computationally intensive details of localized mine scour. In response to the above needs of the operational Navy, the long-term goal of this project is to demonstrate the practical utility of forecasting scour related mine burial using a simple parameterized model forced by readily available wave, wind and tidal forecasts.
Objectives
This project had the following specific objectives: 1. Post on the web continuous five-day forecasts of hydrodynamic variables for the MBP field sites during the MBP field experiment, including wave height, near-bed rms wave orbital velocity, wind speed and direction, wind-driven current speed and direction, tidal current and direction, and combined wave-current bed stress. 2. Predict scour-induced mine burial for the MBP field sites using a parameterized model and post continuously updated five-day forecasts of mine burial to the web. 3. Extend the parameterized model for scour burial to encompass additional new and existing field and laboratory data.
The above figure illustrates the resolution of the NOAA WAVEWATCH III Western North Atlantic wave forecast model in the vicinity of the two ONR field sites for post-impact mine burial. Locations of the nearest NOAA Natonal Data Buoy Center wave buoys are also shown.
The above figure demonstrates the ability of the WW3 wave model to reproduce wave observations from the Martha's Vineyard Coastal Observatory using only a linear regression to transform the data from the nearest model gridpoint.
April 2002 Model Description Questionaire - HTML
FY 2001 Report on Existing Scour Burial Models - Download (PDF 900K)
Existing Scour Burial Models presented at ONR MBP Modeling Workshop, March 2002 - HTML Slide Show
Friedrichs, C.T., and A.C. Trembanis, 2003. Forecasting scour related mine burial using a paramterized model. 3rd Annual ONR Mine Burial Prediction Workshop, St. Petersburg, Fl, 28-30 Jan. - Download Poster (PDF 2.5MB)
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