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We conducted four dives using the Urashima autonomous underwater vehicle (AUV) over three hydrothermal vent fields (Snail, Archean, and Pika) within the South Mariana Trough in July 2009, and measure...
Radio echo sounding is an active remote-sensing method using electromagnetic wave penetration in a particular medium such as ice and permits the measurements of its thickness, the level of the bedrock...
Measuring the Echo Amplitudes of Sporadic E layer in Swept Frequency Ionospheric Sounding.
Large-aperture radars detect the high-density plasma that forms in the vicinity of a meteoroid and moves approximately at its velocity; reflections from these plasmas are called head echoes. To deter...

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