Spatial field shifts in ocean acoustic environmental sensitivity analysis

被引：0
|
作者：
Dosso, Stan E. [1 ]
Morley, Michael G. [1 ]
Giles, Peter M. [2 ]
Brooke, Gary H. [2 ]
McCammon, Diana F. [3 ]
Pecknold, Sean [4 ]
Hines, Paul C. [4 ]
机构：
[1] School of Earth and Ocean Sciences, University of Victoria, Victoria, BC V8W 3P6, Canada
[2] General Dynamics Canada, 3785 Richmond Road, Ottawa, ON K2H 5B7, Canada
[3] McCammon Acoustical Consulting, 475 Baseline Rd., Waterville, NS B0P 1V0, Canada
[4] Defence Research and Development Canada-Atlantic, Dartmouth, NS B2Y 3Z7, Canada
来源：
Journal of the Acoustical Society of America | 2007年 / 122卷 / 05期
关键词：
This article examines the effects of spatial field shifts in ocean acoustic environmental sensitivity analysis. Acoustic sensitivity studies are typically based on comparing acoustic fields computed for a reference environmental model and for a perturbed model in which one or more parameters have been changed. The perturbation to the acoustic field due to the perturbed environment generally includes a component representing a spatial shift of the field (i.e; local field structure remains coherent; but shifts in range and/or depth) and a component representing a change to the shifted field. Standard sensitivity measures based on acoustic perturbations at a fixed point can indicate high sensitivity in cases where the field structure changes very little; but is simply shifted by a small spatial offset; this can conflict with an intuitive understanding of sensitivity. This article defines and compares fixed-point and field-shift corrected sensitivity measures. The approaches are illustrated with examples of deterministic sensitivity (i.e; sensitivity to a specific environmental change) and stochastic sensitivity (sensitivity to environmental uncertainty) in range-independent and range-dependent environments. © 2007 Acoustical Society of America;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Journal article (JA)
引用
收藏
页码：2560 / 2570
相关论文
共 50 条
  • [1] Spatial field shifts in ocean acoustic environmental sensitivity analysis
    Dosso, Stan E.
    Morley, Michael G.
    Giles, Peter M.
    Brooke, Gary H.
    McCammon, Diana F.
    Pecknold, Sean
    Hines, Paul C.
    JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 2007, 122 (05): : 2560 - 2570
  • [2] Linear and nonlinear measures of ocean acoustic environmental sensitivity (L)
    Dosso, Stan E.
    Giles, Peter M.
    Brooke, Gary H.
    McCammon, Diana F.
    Pecknold, Sean
    Hines, Paul C.
    Journal of the Acoustical Society of America, 2007, 121 (01): : 42 - 45
  • [3] Linear and nonlinear measures of ocean acoustic environmental sensitivity (L)
    Dosso, Stan E.
    Giles, Peter M.
    Brooke, Gary H.
    McCammon, Diana F.
    Pecknold, Sean
    Hines, Paul C.
    JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, 2007, 121 (01): : 42 - 45
  • [4] CLASSICAL CHAOS AND THE SENSITIVITY OF THE ACOUSTIC FIELD TO SMALL-SCALE OCEAN STRUCTURE
    PALMER, DR
    GEORGES, TM
    JONES, RM
    COMPUTER PHYSICS COMMUNICATIONS, 1991, 65 (1-3) : 219 - 223
  • [5] MODEL OF A LAYERED OCEAN-BOTTOM FROM THE SPATIAL ACOUSTIC FIELD PROFILE
    KERZHAKOV, BV
    FOKINA, MS
    FOKIN, VN
    ACOUSTICAL PHYSICS, 1995, 41 (03) : 400 - 404
  • [6] Domain sensitivity analysis of the acoustic far-field pattern
    Bochniak, M
    Cakoni, F
    MATHEMATICAL METHODS IN THE APPLIED SCIENCES, 2002, 25 (07) : 595 - 613
  • [7] Experimental sensitivity analysis for near-field acoustic holography
    Di Giuseppe, A
    Martarelli, M
    Revel, GM
    Tomasini, EP
    PROCEEDINGS OF ISMA 2002: INTERNATIONAL CONFERENCE ON NOISE AND VIBRATION ENGINEERING, VOLS 1-5, 2002, : 1799 - 1807
  • [8] Spatial process gradients and their use in sensitivity analysis for environmental processes
    Terres, Maria A.
    Gelfand, Alan E.
    JOURNAL OF STATISTICAL PLANNING AND INFERENCE, 2016, 168 : 106 - 119
  • [9] Shifts of environmental and phytoplankton variables in a regulated river: A spatial-driven analysis
    Sabater-Liesa, Laia
    Ginebreda, Antoni
    Barcelo, Damia
    SCIENCE OF THE TOTAL ENVIRONMENT, 2018, 642 : 968 - 978
  • [10] ANALYSIS OF ACOUSTIC FIELD FLUCTUATIONS AND THEIR SPATIAL CORRELATION ON A STATIONARY PATH
    ZINOVEV, AY
    MATVEEV, AL
    ACOUSTICAL PHYSICS, 1994, 40 (03) : 424 - 424
12345