Live monitoring

Cocos Oceanographic Buoy

Real-time ocean data transmitted via satellite from a Sofar Spotter buoy moored off Cocos Island.

Satellite link SPOT-33020C Connecting…

Last observation: — · Transmits every ~1 h

Cocos Buoy

Coordinates

5.5532° N, 87.0548° O

Wave height

—m

Significant height · mean of the highest third

Wave period

—s

Peak · Mean: — s

Wave direction

—°

—

Wind

—kn

— m/s · —

Sea state: —

Water temperature

—°C

Surface node

Dissolved oxygen

—mg/L

In-line node

Barometric pressure

—hPa

BOREALIS hydrophone

—dB

Underwater noise (SPL)

Salinity

—ppt

In-line node

Smart Mooring · −25 m

How the buoy works

The Spotter buoy measures the surface and transmits by satellite. Below it hangs a ~25 m mooring with three Bristlemouth nodes that measure the water column down to the seabed.

Diagram of the buoy system. At the surface, the flotation buoy and the solar and communications module, joined by a connecting cable. From the upper sensor the instrumentation line runs down past an intermediate float, a subsea sensor and, lower still, another sensor above the anchor on the seabed. A side panel summarises how it works: the sensors record data, the data travels along the cable, and the surface module transmits the information. — Swipe the diagram to see it all

Source: Sofar Ocean Spotter · Cocos Buoy (SPOT-33020C) · Iridium satellite