Colour Scale Page - Simrad ES80 Reference Manual

Simrad ES80 Reference Manual
•
Calculation Interval
The
Calculation Interval
biomass and the size distribution. You can base the calculations on sailed distance,
elapsed time, or a portion of the echogram view.
The
Calculation Interval
interface.
Calculation Interval dialog box, page 344
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Colour Scale
The colour scales used by the ES80 are designed to reflect the how strong the echoes
are. The echo strength is measured in decibels (dB). In the basic colour scale with 12
colours, each colour represents a 3 dB step. This means that the entire scale covers
36 dB. The dynamic range of the ES80 is much larger. The
allow you to change the lower limit of colour scale range to match the current echoes.
Colour Scale page, page 434
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Size Distribution
The Size Distribution information pane shows a histogram of the echoes detected
from single fishes. The calculations are based on the fact that different fish species
have different echo strength. The echo strength also depends on the operational
frequency you use. The
the histogram shown in the Size Distribution information pane.
Size Distribution page, page 438
Related information panes
Colour Scale information pane description, page 235
Depth information pane description, page 237

Colour Scale page

The colour scales used by the ES80 are designed to reflect the how strong the echoes are.
The echo strength is measured in decibels (dB). In the basic colour scale with 12 colours,
each colour represents a 3 dB step. This means that the entire scale covers 36 dB. The
dynamic range of the ES80 is much larger. The
change the lower limit of colour scale range to match the current echoes.
How to open
The page is opened in the
dialog box, select the button on the
Pane Options
434
settings define the parameters that are used to calculate the
parameters can accessed from two places in the ES80 user
page allow you to define the properties for
Size Distribution
Information Pane Options
Colour Scale
parameters allow you to
Colour Scale
dialog box. To open the
menu.
Active
parameters
Information
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