Integration Results (selection) dialog box

The Integration Results dialog box displays the integration results for a selection on an Sv echogram.

To invoke the Integration Results dialog box:

Make a selection on an Sv echogram.
On the Shortcut menu (right-click), click Integrate Selection.

The following information and settings are available:

Note: The analysis variables that are displayed differ depending on whether you are working in depth mode or range mode, see About depth, range and altitude.

Analysis variable	Description
General
Sv mean	The mean volume backscattering strength. Algorithm
Sv minimum	The minimum Sv value included in the integration. This does not include samples thresholded to -999.0dB.
Sv maximum	The maximum Sv value included in the integration.
NASC	The Nautical area scattering coefficient (sA as used by Simrad).
ABC	The Area Backscattering Coefficient.
Domain
Height mean (in depth mode) -or- Thickness mean (in range mode)	The average thickness/height of the selection calculated over the pings included in the integration.
Depth mean -or- Range mean	The average range/depth of samples included in the selection.
Beam volume sum	The sum of the beam volumes of all pings in the selection. See Beam_volume_sum for more information.
Exclude below line depth mean - or- Exclude below line range mean	The average range/depth of the line entered in the exclude below text box (on the Analysis page of the Variable Properties dialog box) over pings with a "good" line status included in the integration. Generally the exclude below line would be the bottom.
Counts
Good samples	The number of sample data points actually included in the integration. Data points can be excluded if they fall within bad data regions, above an Exclude above line or below an Exclude below line. The Exclude below line and Exclude above line are specified on the Analysis page of the Variable Properties dialog box. May be exported as Good_samples. Algorithm
Bad data no data samples	The number of bad data (no data) samples in bad data regions. May be exported as Bad_data_no_data_samples. Algorithm
Bad data empty water samples	The number of bad data (empty water) samples in bad data regions. May be exported as Bad_data_empty_water_samples. Algorithm
No_data samples	The number of no data samples. May be exported as No_data_samples. Algorithm
Samples above surface exclusion	The number of samples above the Exclude above line. May be exported as Samples_above_surface_exclusion. Algorithm
Samples below bottom exclusion	The number of samples below the Exclude below line. May be exported as Samples_below_bottom_exclusion. Algorithm
Samples in domain	The number of samples contained within the selection. May be exported as Sample_in_domain. Algorithm
Pings	The number of pings between the start and end time of the selection. The number of pings is not affected by bad data regions.
Bottom*
Bottom_roughness_normalized	The value of Bottom_roughness_normalized for the selection, where the classification algorithm Feature extraction interval is the number of pings in the selection.
Bottom_hardness_normalized	The value of Bottom_hardness_normalized for the selection, where the classification algorithm Feature extraction interval is the number of pings in the selection.
First_bottom_length_normalized	The value of First_bottom_length_normalized for the selection, where the classification algorithm Feature extraction interval is the number of pings in the selection.
Second_bottom_length_normalized	The value of Second_bottom_length_normalized for the selection, where the classification algorithm Feature extraction interval is the number of pings in the selection.
Bottom_rise_time_normalized	The value of Bottom_rise_time_normalized for the selection, where the classification algorithm Feature extraction interval is the number of pings in the selection.
Bottom_line_depth_mean	The value of Bottom_line_depth_mean for the selection, where the classification algorithm Feature extraction interval is the number of pings in the selection.
Bottom_max_Sv (dB)	The value of Bottom_max_Sv for the selection, where the classification algorithm Feature extraction interval is the number of pings in the selection.
Bottom_kurtosis	The value of Bottom_kurtosis for the selection, where the classification algorithm Feature extraction interval is the number of pings in the selection.
Bottom_skewness	The value of Bottom_skewness for the selection, where the classification algorithm Feature extraction interval is the number of pings in the selection.

Note: *Echoview displays extracted features only when bottom point export variables are selected on the Export page of the EV File Properties dialog box. The quality of the extracted features relies on the suitability of the bottom line, the overlap of the selection/region/cell with the first and second bottom echoes, the quality of the Bottom echo threshold at 1m and the suitability of the Feature Extraction Interval. Bottom calculations ignore the use of the bottom line as an Exclude below line. Bottom calculations consider data from the pings that intersect the region, cell or selection.For more information refer to Configuring a bottom classification.

Linked

Select Linked to link the displayed results to the currently activated region or selection. The displayed results will update as you select subsequent regions or selections of the echogram.

Notes: With Linked selected, the dialog box will respond to the activated region on the Region browser and the Regions window.

Integration Results (selection) dialog box

Linked

See also