New in Echoview 3.45 for all users

This new operator allows you create a mathematical formula to operate on a single beam echogram and create a virtual variable. Formula elements include mathematical expressions, ping number, sample number and data value at a specified ping and sample number.

See About the Formula operator for more information.

All resample operators now allow for the weighted resampling of data proportionate to bin inclusion. This removes artifacts introduced by very small vertical bin sizes.

Note: This enhancement is in beta release.

Use the new Fish length operator to create a single target variable that reports the estimated length of each detected fish in place of its Target Strength. Examine fish lengths by Exporting target length data or viewing a Length vs. Depth graph or a Length Frequency distribution graph.

See Fish length operator for more information.

Use new automated processing commands to save time.

• Use a script to create new EV files from a template. You can run a script based on a template that exports results without needing to first create an EV file.

• You can now add and remove data files from EV files through scripts.

See Using the scripting module (deprecated scripting model for Echoview 5.0) for more information.

Interface enhancements

These enhancements give you more control over Echoview's workspace and makes your work easier by giving you easily accessible information about your data.

• You can now change the size of the rings representing 3D beams on the 3D single targets graph.

• A progress bar is now displayed when a virtual variable is recalculated.

• You can now change the background color of a scene (on the General page of the Scene Properties dialog box).

• Improved Status bar display for multibeam H-mode, V-mode and S-mode variables.

These new export variables convey information to make your data analyses even easier.

• A new GPS fix export variable, outputs the file name of the source data file for each fix.

• New single target export variables Target_longitude, Target_latitude, Target_easting and Target_northing, save you time having to combine single target data with position from other exports manually.

Span gaps option for lines

You can now create new lines with no gaps in them using the Span gaps option on the New Editable Line dialog box. This is especially useful for patching gaps in your sounder-detected bottoms.

Auto-synchronize single beam and multibeam echograms

An enhancement to the auto-synchronized groups feature means that you can now add both single beam echograms and multibeam echograms to an auto-synchronized group, allowing for auto-synchronization between single beam and multibeam echograms.

You can now create ping graphs from angle data.

You can now combine the average thickness/height of single targets with the Num_targets and Wedge_volume_sampled variables to produce biomass density estimates from single target data.

See Thickness mean for more information.

Examine the internal structure of 3D regions (fish schools) in detail. Discover the internal distribution of fish density inside of schools.

See About 3D Region inspection for more information.

Follow your ship (platform) along a cruise track, see your data in a new light and take the opportunity to find new insights. Observe 3D regions, echogram curtains and bottom surfaces as they pass in space and time. This new feature replaces the Flythrough feature.

See Controlling scene animation with a 3D cruise track for more information.

This tool gives you real time 3D echogram curtains during a survey! You will be able to visualize the distribution of backscatter in the area you are surveying while you are surveying. This is ideal for adaptive surveys, especially for small areas. When combined with a C-MAP chart or other source of bathymetry you will be able to see the fish in their environment as you survey. In addition, this feature allows gaps in echogram data to be spanned in a scene for post processing.

See About live viewing for more information.