Impact of Littoral Environmental Variability on Acoustic Predictions and Sonar Performance

Preface. Section 1: Ocean variability. Acoustic effects of environmental variability in the SWARM, PRIMER and ASIAEX experiments (Invited paper); J. Lynch, et al. Acoustic intensity variability in a shallow water environment; B.H. Pasewark, et al. Combination of acoustics with high resolution oceanography (Invited paper); J. Sellschopp, et al. Effect of hurricane Michael on the underwater acoustic environment of the Scotian Shelf; D. Hutt, et al. High-frequency acoustic propagation in the presence of oceanographic variability; M. Badiey, et al. Instrumented tow cable measurements of temperature variability of the water column; A.A. Ruffa, M.T. Sundvik. Mesoscale - small scale oceanic variability effects on underwater acoustic signal propagation; E. Coelho. Spatial coherence of signals forward scattered from the sea surface in the East China Sea (Invited paper); P.H. Dahl. Variability in high frequency acoustic backscattering in the water column; A.C. Lavery, et al. Section 2: Seabed variability. Intra- and inter-regional geoacoustic variability in the littoral (Invited paper); C.W. Holland. Acoustic and in-situ techniques for measuring the spatial variability of seabed geoacoustic parameters in littoral environments; J.C. Osler, et al. Measurements of bottom variability during SWAT New Jersey Shelf experiment; A. Turgut, et al. Mapping seabed variability using combined echosounder and XBPs for sonar performance prediction; K.M. Kelly, G.J. Heald. Variability of shear wave speed and attenuation in surficial marine sediments; M.D. Richardson. In-situ determination of the variability of seafloor acoustic properties: An example from the ONR Geoclutter area; L.A. Mayer, et al. Calculation of in situ acousticwave properties in marine sediments; B.J. Kraft, et al. Sub-bottom variability characterization using surface acoustic waves; M.E. Zakharia. The influence of noise and coherence fluctuations on a new geo-acoustic inversion technique; C.H. Harrison. Estimating shallow water bottom geo-acoustic parameters using ambient noise; D. Tang. Effect of environmental variability on model-based signal processing: Review of experimental results in the Mediterranean; J.-P. Hermand. Rapid geoacoustic characterization for limiting environmental uncertainty for sonar system performance prediction; K.D. Heaney, H. Cox. Environmental uncertainty in acoustic inversion; S.E. Dosso, M.J. Wilmut. Measuring the azimuthal variability of acoustic backscatter from littoral seabeds; P.C. Hines, et al. Backscatter from elastic ocean bottoms: Using the small slope model to assess acoustical variability and uncertainty; R.F. Gragg, et al. Spatial and temporal variability in bottom roughness: Implications to high frequency subcritical penetration and backscatter; K.L. Williams, et al. Variability of bottom backscattering strength in the 10-500 kHz band at shallow grazing angles; N.P. Chotiros. Predicting scattered envelope statistics of patchy seafloors; A.P. Lyons, et al. The effect of seabed backscattering variability on the probability of detection and on the performance of seabed classification algorithms; E. Pouliquen, et al. Section 3: Acoustic fluctuations: Measurements. Effects of environmental variability on acoustic propagation loss in shallow water; T. Akal. Broadband acoustic signal variability in two 'typical' shallow-water regions; P.L. Nielsen, et al. Variability, coherence and predictability of shallow water acoustic propagation in the Straits of Florida; H.A. DeFerrari, et al. Ambient no