Figure 5

Photographs and schematics of the CP-FOCE as deployed on the Heron island reef flat in December 2009.

A) Shows a wide view of the experimental system including the 3 CP-FOCE flumes and the wind generator. B) Photograph of the experimental float that has the 4, 12 V deep cycle batteries as ballast and contains all of the control computers, peristaltic pumps, the solar panel and the radio antennae to transmit the data real-time back to the laboratory. C) Schematic of a CP-FOCE flume showing the 3 experimental sections and the flow conditioners with CO₂ enriched seawater injection sites. D) Photograph of a section of a CP-FOCE flume containing a rack with Acropora millepora corals and the pump that is turned on when the doors are closed to provide water movement. E) Schematic of the feed-back control between the pH sensors, flow sensor and the National Instrument control computers which decide which persitaltic pump to turn on and at what rate for the dosing.