ASA 124th Meeting New Orleans 1992 October
3aAO10. Seasonal variability of the acoustic energy distribution along a
propagation path across the eastern United States continental shelf.
Eugene M. Podeszwa
George Botseas
David G. Browning
Naval Undersea Warfare Ctr., New London Detachment, New London, CT
06320)
Seasonal oceanographic changes can have a strong impact on shallow-water
sound transmission loss. Additionally, in any one season, several distinct
oceanographic regions may be encountered along a shallow-water propagation
path. Using the range-dependent IFD propagation model, propagation loss
contours are presented for a 300-km propagation path across the continental
shelf starting near Charleston, SC. The relative impact of horizontal and
vertical seasonal oceanographic changes are determined in terms of propagation
loss and shifts in the acoustic energy distribution throughout the water
column.