This schematic shows the profiler mooring (left) and the electromechanical mooring (right) that will serve as the backbone of the Pioneer Array. Neither mooring is drawn to scale. Profilers (left) will crawl up and down the mooring wire, sampling properties (temperature, salinity, chlorophyll, etc.) throughout the water column. Acoustic Doppler current profilers (ADCPs) will measure how fast the water is moving. These profiler moorings can relay data and commands by satellite to shore-based researchers and by acoustic signals to the electromechanical moorings. Electromechanical moorings (EMs) will be used like underwater power strips, allowing researchers to plug various instruments into the mooring cable. Two of the moorings will include docking stations where autonomous underwater vehicles (AUVs) can recharge their batteries and offload data. The EM surface buoy generates power through a combination of wind turbines and solar panels; it also serves as the communications hub, providing Ethernet and acoustic communication between underwater instruments and shore-based laboratories. (Illustration by Jack Cook, Woods Hole Oceanographic Institution)



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Last updated August 23, 2007
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