The second site of the day was another private residence still within the city of Mdina. The well was located in an open air courtyard like the first, and unfortunately had very little water that we could access. We tried lowering the robot into different areas that appeared to have more depth and we were able to capture a sonar scan, but overall it was quite shallow. The results we gathered from this site were noisy and inconsistent due to low water level, so we ended the expedition at this location fairly quickly. A short video of what the robot saw during the 2009 expedition can be found here.
Shown below is the sonar data image, a top view of the mapped image (0.20m grid cell resolution) and a 3D view of the mapped image (0.05m grid cell resolution).
California Polytechnic State University
Marine Resources Development Foundation