Environment Dialog Box; Water Column Page - Simrad ES80 Reference Manual

Simrad ES80 Reference Manual
BITE (Built-In Test Equipment) dialog box, page 400
About dialog box, page 412

Environment dialog box

Environmental parameters such as salinity, sound speed and water temperature all play
an important part to present accurate echo data. Use the
define these values. Depending on the current sea and weather conditions, you may
need to change these values frequently.
How to open
This dialog box is opened from the
Description
In order to obtain accurate depth readings and fish echoes, it is very important that
the sound speed through the water is set correctly. Several parameters are required to
calculate the correct sound speed value. If these parameters are not known to you, use
the default value 1494 m/s. This is a typical mean value for sound speed.
The following page is provided.
•
Water Column
In order to achieve correct echo information, the current environmental parameters
must be known to the ES80. The
must be defined to match the current conditions.
Water Column page, page 340
Related tasks
Configuring the environmental parameters, page 88
Conceptual descriptions
About sound wave propagation, page 459

Water Column page

In order to achieve correct echo information, the current environmental parameters must
be known to the ES80. The
defined to match the current conditions.
This page is opened from the
located on the
Setup
340
Setup
Water Column
Water Column
Environment
menu.
Environment
menu.
page collects these parameters. These
page collects these parameters. These must be
dialog box. The
Environment
parameters to
dialog box is
406273/C