CEE 514
Coastal Engineering
Fall Semester 2008

Modeling Flow in Little Sand Bay Harbor
Stacey Schmidt

 


Introduction


Data Collection


Approach


Results


Conclusion

Data Collection

My original goal was to apply the collected wind and bathymetry data to make a simulation of events that occurred while our class was on site.

Bathymetry mapping
The bathymetry mapping system included a boat equipped with a GPS, ground-penetrating radar, and a sub-bottom profiler, see image below.



  • The ground-penetrating radar uses an electromagnetic wave to image the bottom profile of the harbor area.  This is similar to taking an X-ray image, but instead of being in the ultraviolet and gamma ray wave length range, it is in the microwave range.
  • The sub-bottom profiler uses acoustic waves to produce an image of the bathymetry, similar to an ultrasound image.
  • The GPS records the latitude and longitude so it is possible to map out the locations of the different water depths recorded by the ground-penetrating radar and sub-bottom profiler.

Wind anemometer

The wind anemometer was used to collect information on wind direction and velocity.  The wind anemometer was attached to a data logger which saved this information.  Below is a picture of the wind anemometer and me at the harbor inlet.