Sea & Earth Sciences infrastructure

View of the secondary junction box (SJB)
	Views of the Instrumented Interface Module (MII)
	Other instrument connected to the SJB : sismometer, Deep Sea Net node

On the BJS, providing power and data transmission, 3 instrumented modules have been connected, providing real time data collection

• The first module is a Deep Sea Net node, technology that will provide communication between distant site linked into an observation network (seismology, tsunami, ...).

• The second module, the Instrumented Interface Module (MII) is hosting scientific instrumentation for environmental sciences. In its actual configuration, the MII is hosting a CTD sensor, an oxygen sensor, a turbidity sensor, a curentmeter (ADCP), an absolute pressure sensor ("tsunamimeter") and a very high sensitivity optical camera. The  MII has been built with a wet meteable socket  ready to receive an acoustic modem which will allow communication with an autonmous instrumented mooring line located nearby (less than 3NM).

• The third module is a seismology modulee (broad band velocimeter (0.003-50Hz) , accelerometer, differential pressure and absolute pressure 1 Hz).(broad band velocimeter (0.003-50Hz) , accelerometer, differential pressure and absolute pressure 1 Hz).

Biocamera front face  Electronic container      Currentmeter  Turbidity sensor      Oxygen, CTD and pressure sensors  Interlink cable  Some details and instruments of the MII

First data obtained trhough the Secondary Junction Box (from left to right and top to bottom : optode O2, microcat CTD, turbidity, absolute pressure) - Click to enlarge.