This data is collected by an instrument dropped over the side of a ship
in the ocean. As the instrument descends vertically in the water it
collects information as a function of depth. The ocean data set is a
record of the horizontal (shear) velocity of the water measured in 0.1
increments starting from a depth of 489.5 meters and ending at 899.0
meters. This series was collected and supplied by Mike Gregg, Applied
Physics Laboratory, University of Washington.