First Report on SWAM99 Workshop

• Main Authors: Tolstoy, A, Smith, Kevin B
• Other Authors: NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF PHYSICS
• Format: Text
• Language: English
• Published: 1999
• Subjects: Physical and Dynamic Oceanography; Acoustics; *UNDERWATER ACOUSTICS; ACCURACY; ADIABATIC CONDITIONS; CANYONS; CODING; COUPLING(INTERACTION); ENVIRONMENTS; EQUATIONS; IDENTIFICATION; INTERNAL WAVES; MODELS; PARABOLAS; PARAMETERS; PLOTTING; PROPAGATION; RANGE(EXTREMES); REPORTS; SHALLOW WATER; SOLITONS; STANDARDS; TARGET DETECTION; TOPOGRAPHY; WATER; WEDGES; WORKSHOPS; Kraken; Orca
• Online Access: http://www.dtic.mil/docs/citations/ADA628862; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA628862

LONG TERM GOAL. The long term in ten tof this workshop is to predict the accuracy of any given acoustic propagation model in shallow water. Such models will be integral components of larger codes to be used for target detection, localization, and identification in range-dependent scenarios. OBJECTIVES. The immediate objective of this workshop was to examine present propagation models (see Jensen et al., '94): adiabatic and coupled normal codes (such as KRAKEN and ORCA), Parabolic Equation (PE) codes, Ray based codes, and newly developed codes, within the context of shallow water range-variable environments (see Tolstoy et al., '98 for a workshop on range-independent benchmarking). A number of test cases (six cases: three with five subcases, two with three subcases, and one with no subcases for a total of twenty-two subcases) were devised which were proposed to the workshop participants to be worked on in advance. However no benchmark solutions, i.e., answers, were computed since there was little agreement in advance on what would constitute such solutions in the absence of analytic solutions. Prepared in collaboration with ATolstoy Sciences, Annandale, VA.