Description
The following information is provided under the Layers heading.
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Echogram This identifies the echogram type in use.
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Minimum/Maximum Range These parameters identify the depth range covered by the layer.
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sA: sA is the nautical area scattering coefficient. sA is commonly abbreviated as NASC. In this context the sA value presents the current biomass index. |
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Sv Treshold This is called the scattering-strength parameter for volume and is measured in dB. The scattering strength is used for enhancing the incident wave or echo beam.
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Number of targets This information identifies the number of individual targets (single fish) in the depth layer.
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Max TS in ping ... at depth These parameters identify the strongest target strength detected, and at which depth.
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Alongship angle / Athwartship angle These parameters identify the alongship and athwartship offset angles for the transducer. These offset angles are taken from the calibration results. These parameters refer to the angle/direction of the Max TS in ping.
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