The PARKA II-A Experiment. Volume 2
MAURY CENTER FOR OCEAN SCIENCE WASHINGTON DC
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The PARKA II-A Experiment was performed in the North Pacific Ocean in November and December of 1969 as a cooperative venture of fourteen Navy and civilian laboratories and other organizations under the sponsorship of the Office of Naval Research ONR. It followed PARKA I as the second of a series of three experiments designed to acquire a comprehensive bank of detailed acoustic and oceanographic data to be employed in the development and test of acoustic prediction models. PARKA II-A was a combined oceanographic-acoustic experiment, in which the oceanographic effort was designed to provide a better understanding of the acoustic results. A description of PARKA II-A acoustic programs and a discussion of the results is contained in Volume I of this report. With each individual acoustic event, a series of concurrent oceanographic observations was taken in order to describe the environmental conditions along the acoustic path which caused the observed propagation characteristics. Wherever possible, environmental data were collected at the acoustic source, the receiver, and at one to three points between them.