Environmental Support for Project WEAP (Weapons Environmental Acoustic Program), East of Montauk Point, New York, 7-28 May 1982.

• Main Authors: Richardson,M D, Tietjen,J H, Ray,R I
• Other Authors: NAVAL OCEAN RESEARCH AND DEVELOPMENT ACTIVITY NSTL STATION MS
• Format: Text
• Language: English
• Published: 1983
• Subjects: Biological Oceanography; Physical and Dynamic Oceanography; Acoustics; *Sediments; *Aquatic animals; North Atlantic Ocean; Ocean bottom; Continental shelves; Sand; Physical properties; Acoustic properties; Mixing; Particle size; Sand dollars; Bioturbation; WEAP(Weapons Environmental Acoustic Programs); PE62759N; Long Island; North Atlantic
• Online Access: http://www.dtic.mil/docs/citations/ADA139800; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA139800

This report covers environmental support for Project WEAP (Weapons Environmental Acoustics Program), a joint Naval Underwater Systems Center (NUSC), Naval Ocean Research and Development Activity (NORDA) high frequency acoustic experiment, conducted 25 km east of Montauk Point, Long Island, New York. The objective of Project WEAP was to provide the high resolution acoustic and environmental data required for new concepts in weapon system design. The acoustic experiment was sited at the southern terminus of a drowned barrier spit in 35 m of water. Sediment and faunal samples were collected remotely with a 0.025 sq.m box core. Scuba diver collected sediment cores were obtained to measure sediment geo-acoustic properties. Two sediment types (fine sand and coarse sand) were evident from the laboratory analysis of sediment grain size. Fine sand sediments had lower values of compressional wave velocity, impedance, and bulk density; lower reflection coefficients and higher bottom loss and attenuation values than coarse sand sediments.