Orpheus Island Sensor Float 1

Brief description

A round 1.4m yellow buoy has been deployed in Little Pioneer Bay, Orpheus Island, just off the research station in the central part of the Great Barrier Reef.The buoy is configured as a sensor-float with a Campbell Scientific logger, a spread-spectrum radio for communicating with the base station (located near the Research Station) a surface mounted (60cm under the water surface) thermistor and an inductive modem to support a range of inductive sensors, initially this will be a SeaBird SBE39 measuring temperature and pressure (depth).The float is moored at the entrance to Little Pioneer Bay, just deep of the reef front and will be used to measure the water entering the bay with particular interest in warm water pushing up into the bay. The data will support work being done in the bay by James Cook University researchers.The unit will be serviced every six months and will be used in the future for attaching new sets of sensors. The buoy is one of two buoys and three relay-poles being deployed on Orpheus Island as part of the GBROOS Project. The design looks to measure the impact of warm water pushing in from the Coral Sea onto the reef flat at the northen end of the island, through the channel to Pelorus Island and around onto the land side of the island. These events are linked to coral bleaching and other climate impacts.The buoys initially have a Campbell Scientific loggers powered off two 5W solar panels, a Garmin GPS unit and one thermistor located at the base of the buoy around 60cm below the water line. The buoys use a Campbell Scientific spread-spectrum radio to talk back to the base station located on Orpheus Island. Power SupplyBattery Backed (1 x 33Ahr AGM with Solar Regulator), 2 x 5W Solar Panel Supply.Logger Settings - Pakbus Address - 171Logger Setup as node (isRouter = False)CSDC7 comms board rate set at 34KCSD7 Beacon = 21600CSDC7 Neighbours range 1 - 1, 110 - 110, 120 - 120Over-Reef RF Network - RF411 attached to the CSIO port of the loggerRadio Settings - Active Interface - Datalogger CSDCSDC Address 7Protocol: Pakbus awareRadio Net Address - 0Hop Sequence - 0Power mode - less than 2mA 1 SecondRetry level - Low

Lineage

Maintenance and Update Frequency: continual

Statement: Statement: All sensors are factory calibrated and serviced every six months.Statement: Data are checked against a set of rules and then flagged using the IODE set of flags.

Notes

Credit
Bainbridge, Scott, Mr (Point Of Contact)

Credit
Integrated Marine Observing System (IMOS)

Credit
Wireless Sensor Networks Facility (formerly known as Facility for The Automated Intelligent Monitoring of Marine Systems (FAIMMS)), part of the Great Barrier Reef Ocean Observing System project (GBROOS) (IMOS)