Moving Vessel Profiler (MVP) - JR294

Description

The Moving Vessel Profiler MVP-300 was set-up on the starboard-side of the back deck of the JR294 and was initially intended to be used in areas free of ice to obtain kilometre-scale resolution CTD observations from 0 to 600 m when the ship was moving at about 5 knots.

The profiler was equipped with temperature, conductivity, dissolved oxygen and fluorescence sensors. Temperature and conductivity were fed and processed directly in the profiler main board, while only raw voltage were retrieved for dissolved oxygen and fluorescence.

After the test casts made north of the Amundsen Sea continental shelf, the MVP was used only in front of the Pine Island Glacier ice shelf, where glacial wind complicated the operations, especially due to recurrent build-up of ice on the profiler boom. One section along the ice shelf edge was nevertheless obtained in ~8h between February 15th and 16th. MVP System Configuration:

The initial sensor configuration was as follows:

- Brooke Ocean Moving Vessel Profiler MVP300-1700

- AML micro sensor CTD, s/n:7027

- Data Telemetry Module, s/n: 10217

- AML micro Dissolved Oxygen sensor, s/n: 7518

- Tilt/roll sensor s/n: P01

Ancillary instruments & components:

- Odim MVP controller interface, s/n: 10784

- Amplicon PC, s/n: MVP300 SPARE