Port and Airport Research Institute, Japan

Clockwise from top: Two maps showing location of PARI headquarters (Yokosuka) and the Hazaki Oceanographical Research Station (HORS). Aerial photograph of the station’s pier, which extends nearly 400 meters (1,300 feet) into the Pacific Ocean. Photograph of station personnel lowering a lead-weight line from the pier to measure the depth of the sandy seafloor below. Figure credit: Masayuki Banno, PARI.