Acoustic Effects

The acoustic effects from the WEC array at PacWave can be evaluated using the Acoustic module in the SEAT GUI. This module reads in individual ParAcousti model .nc files that correspond to wave conditions.

Input

At this point you should have already setup the input files and style files as detailed in Prepare Tutorial Files.

To run this demonstration, use the Load GUI Inputs button located at the bottom left of the SEAT GUI, navigate to DEMO/pacwave/acoustics_module_100db_threshold.ini, and click OK to load the inputs. If you need detailed instructions on how to load inputs, please refer to the Save & Load Configuration section in the SEAT QGIS Plugin documention.

Note

Your paths will differ than the ones shown in the example below. If you get an error double check the paths making sure the files exist at the specified location.

Output

For a given probability of occurrence of each wave condition, the combined annual acoustic effects can be estimated. SEAT generates a similar stressor layer consisting of the difference between the acoustic effects with and without the array. With a provided receptor file which consists of information regarding the species, threshold value, weighting, and variable used, a threshold map is generated as a percentage of time (based on the probability distribution) that a threshold will be exceeded. For demonstration purposes, an artificially low threshold is used to generate the percent exceeded threshold figure below.

Layers Legend	Risk Layer
Species Threshold Exceeded	Calculated Paracousti

Output Files

Additional output files can be found in the specifed Output folder

Output
└───ACOUSTICS_MODULE_100DB_THRESHOLD
    └───Acoustics Module
         paracousti_risk_layer.tif
         paracousti_stressor.csv
         paracousti_stressor.tif
         paracousti_stressor_at_paracousti_risk_layer.csv
         paracousti_without_devices.csv
         paracousti_without_devices.tif
         paracousti_with_devices.csv
         paracousti_with_devices.tif
         species_density.csv
         species_density.tif
         species_density_at_paracousti_risk_layer.csv
         species_percent.csv
         species_percent.tif
         species_percent_at_paracousti_risk_layer.csv
         species_threshold_exceeded.csv
         species_threshold_exceeded.tif
         species_threshold_exceeded_at_paracousti_risk_layer.csv