Analysis variables for classifying regions

The following analysis variables are available for creating rules to classify regions:

Analysis variable

Units

3D_school_volume

m3

ABC

m2/mi2

ABC_noise

m2/m2

Aggregation_index

m-1

Area_Backscatter_Strength

m2/nmi2

Attack_angle

degrees

Bad_data_empty_water_samples

number of bad data (empty water) samples

Bad_data_no_data_samples number of bad data (no data) samples

Beam_volume_sum

m3

Center_of_ mass

m

Coefficient_of_variation

%

Corrected_MVBS

dB re 1m2/m3

Corrected_area

m2

Corrected_length

m

Corrected_mean_amplitude

m2/m3

Corrected_perimeter

m

Corrected_thickness

m

Depth_mean

m

Equivalent_area

m

Exclude_above_line_depth_mean
Exclude_above_line_range_mean

m

Exclude_below_line_depth_mean
Exclude_below_line_depth_min
Exclude_below_line_depth_max
Exclude_below_line_range_mean
Exclude_below_line_range_min
Exclude_below_line_range_max

m

Good_samples

number of good samples

Heave_max
Heave_mean
Heave_min

m

Height_mean

m

Horizontal_roughness_coefficient

dB re 1m2/m3

Image_compactness

ratio

Inertia

m2

Kurtosis

dB re 1m-1

NASC

m2/nmi2

NASC_noise

m2/nmi2

No_data_samples

number of No_data samples

Proportion_occupied

Unitless

Range_mean

m

Region_bottom_altitude_max
Region_bottom_altitude_mean
Region_bottom_altitude_min
Region_top_altitude_max
Region_top_altitude_mean
Region_top_altitude_min

m

Samples_Above_Surface_Exclusion

number of samples above the Exclude above line

Samples_Below_Bottom_Exclusion

number of samples below the Exclude below line

Samples_In_Domain

the number of samples in the analysis domain

Skewness

dB re 1m-1

Standard_deviation

Deviation from mean (σ)

Sv_max
Sv_mean
Sv_min
Sv_noise

dB re 1m-1

Thickness_mean

m

Uncorrected_area

m2

Uncorrected_length
Uncorrected_perimeter
Uncorrected_thickness

m

Vertical_roughness_coefficient

dB re 1m2/m3

See also

About analysis variables
Classifying regions