About Target_true_depth

Target_true_depth is an analysis export variable available in database format, exported single target analyses and fish track analyses.

It reports the true depth of a single target (m). This variable takes transducer geometry and beam geometry into account. Calculations use the WGS84 datum.

This variable is exported only if Depth is selected under Echogram mode on the Echogram page of the EV File Properties dialog box. Otherwise Target_range is exported.

See also

About analysis
About analysis variables

About single target depths
About Target_on_axis_depth
About mapping and map projections: Target_true_depth