ASA 129th Meeting - Washington, DC - 1995 May 30 .. Jun 06

1pAO13. Numerical investigation of ray path stability in the Mediterranean under the condition of nonstationary signal receiving.

Vladimir N. Fokin

Margarita S. Fokina

Inst. of Appl. Phys., Russian Acad. of Sci. 46, Ulyanov St., 603600, Nizhny Novgorod, Russia

Using the concrete c(z) data (c=sound speed, z=depth) obtained in the Mediterranean during the THETIS-2 experiment on board the ACADEMICIAN SERGEY VAVILOV research vessel, the possibility of ray path identification using nonstationary receiving are numerically investigated. Sufficient c(z) data were obtained for numerical simulation of the sound propagation along different acoustic routes. Sensitivity of different rays paths to errors caused by the erroneous determination of depth and distance is analyzed. The possibility of using the data obtained from the research vessel for ocean acoustic tomography is discussed.