These data have been processed completely outside the approved Federal Government charting stream. Within the Canadian Hydrographic Service, these same data are curretly being subjected to a rigorous Quality Control and Assurance program. This has involved extensive editing of the bathymetric data (the backscatter data has not been handled by them to date). Only data released by the CHS (when they choose to do so) should be taken as the authorative navigational surface.

In contrast, the bathymetric surfaces, generated here, have utilized totally automated data handling processes which are generally insensitive to occasional outliers. There exist, however, regions in which the multibeam sonar systems have been grossly mistracking. These false and misleading data, at this time, remain in the presented products. As such, the surfaces herein should be used only for geomorphic interpretation.

While the backscatter data has been handled in a similarily automated manner,  it is hard to run aground on BS. Nevertheless, those attempting to utilize the presented backscatter data for any purpose that involves liability should realise that these data are presented without absolutely any guarantee of reliability.