"Pioneer " then set out from Kodiak to conduct ocean surveys in the North Pacific Ocean between the Aleutian Islands and Hawaiian Islands to the limit of LORAN-C control, during which she again released weather balloons and made frequent meteorological reports, conducted bathymetric measurements, employed her magnetometer and gravity meter, took bottom core samples in Shelikof Strait, discovered a layer of warm water at depths of 320 to 440 feet ( 97.5 to 134 meters ) between 53 degrees North latitude, across all sounding lines, and discovered eleven seamounts.
