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Table 1 Description of operating mode, tether length, acoustic receiver used, and weather conditions for each trial [42].

From: Characterization of acoustic detection efficiency using an unmanned surface vessel as a mobile receiver platform

Trial number

Mode

Tether length

Receiver

Date

Duration

Weather conditions

1

Station-Keeping

4.6 m

VR2TX

8/17/2022

1:56

21.1 °C, 1.7 m/s wind

2

Drifting

4.6 m

VR2TX

8/18/2022

1:54

13.8 °C, 1.2 m/s wind

3

Drifting

2.9 m

VR2TX

8/18/2022

1:44

15.6 °C, 0.9 m/s wind

4

Station-Keeping

2.9 m

VR2TX

8/18/2022

1:24

23 °C, 0 m/s wind

5

Drifting

2.9 m

VR2TX

8/19/2022

1:20

16.1 °C, 0 m/s wind

6

Drifting

1.1 m

VR2TX

8/19/2022

1:37

15.7 °C, 0.4 m/s wind

7

Station-Keeping

1.1 m

VR2TX

8/19/2022

1:38

18.9 °C, 0.6 m/s wind

8

Drifting

2.9 m

Mini VR2C

8/19/2022

1:54

24.5 °C, 0.4 m/s wind