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Phased Array Doppler Sonars (PADS) have been developed at Scripps over the past 20 years. These provide sector-scan images of radial velocity and acoustic intensity over ranges of 0.1 m (medical ultra sound) to 1.5 km (ocean surface wave measurement). Most recently we’ve deployed a 200 kHz PADS from the R/V Revelle during EquatorMix (October 2012, at 140W on the Equator). The pie-shaped measurement...