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Towed from an autonomous surface vehicle in deep water, near the Kelvin and Atlantis II seamount complexes, this array is capable of determining the horizontal DOA (i.e., bearing) of low-frequency broadband (210\u2013310\u2009Hz) transmissions from bottom-moored sources located at a depth of \u223c1100 m and ranges up to 176\u2009km away. 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