Chesapeake Times, Vol 6 | July 2021 New for SonarWiz 7.8.0 – we are adding the ability to utilize Tide data to correct Sub-Bottom sonar data.  In addition to Tide data we are also adding a Starting Elevation value for each Sub-Bottom file. This will allow the user to specify the elevation for the survey.  SonarWiz Sub-Bottom data has several sources of Elevation data and Depth data: These data add together to describe where the sonar is located vertically. In other words a Vertical Offset of the Sub-Bottom sonar data. This information together with the travel time will allow a more accurate location for …