Wideband acoustic transceiver data from probe attached to rosette on PolarFront 2022-05 cruise

PolarFront 2022-05 WBAT/Rosette

Proprietary echosounder files and mission plan from Kongsberg Maritime WBT tranceiver EKA, serial number 253119.

Time coverage: 2022-05-20T04:32:12Z/2022-05-25-T12:30:06Z

Size: 2.8GiB

Acoustic probe (WBAT)
At some stations we deployed an acoustic probe composed of a Wideband Acoustic
Transceiver (WBAT; Kongsberg Maritime AS) mounted on the LOPC rosette frame and connected to
a sideward-looking 38 kHz split beam transducer (Model ES38-18DK; 36-45 kHz) and a sideward-
looking 333 kHz single beam transducer (Model ES333-7CDK-single; 280-380 kHz), both operated in
broadband mode split-beam wideband (Figure 1c). The ping rate was set to 1 second, the range to 50
m, the pulse length to 2,048 µs, and power to 225 W at 38kHz and 38 W at 333 kHz. The WBAT was
calibrated in January 2022. The time of the WBAT was synchronized with the LOPC-CTD to extract
the exact depth at each ping.

For a list of probe stations, see M Daase (ed., 2022, table 4.1, p. 32).

References

Malin Daase (ed.) (2022). PolarFront May 2022 Cruise Report. Zenodo. https://doi.org/10.5281/zenodo.7128746