Ocean acoustic tomography: estimating the acoustic travel time with phase

1989 ◽  
Vol 14 (1) ◽  
pp. 108-119 ◽  
Author(s):  
J.L. Spiesberger ◽  
P.J. Bushong ◽  
K. Metzger ◽  
T.G. Birdsall
Keyword(s):  
Travel Time ◽  
Acoustic Tomography ◽  
Acoustic Travel Time ◽  
Ocean Acoustic Tomography

Ocean acoustic tomography: Travel‐time inversion in the eastern Fram Strait

2008 ◽  
Vol 123 (5) ◽  
pp. 2991-2991
Author(s):  
Emmanuel Skarsoulis ◽  
George Piperakis ◽  
Michael Kalogerakis ◽  
Hanne Sagen
Keyword(s):  
Travel Time ◽  
Acoustic Tomography ◽  
Time Inversion ◽  
Fram Strait ◽  
Travel Time Inversion ◽  
Ocean Acoustic Tomography

ACOUSTIC TRAVEL TIME COMPUTATION BASED ON PE SOLUTION

1993 ◽  
Vol 01 (01) ◽  
pp. 91-100 ◽  
Author(s):  
E. C. SHANG ◽  
Y. Y. WANG
Keyword(s):  
Travel Time ◽  
Mode Coupling ◽  
Mesoscale Eddy ◽  
Spectral Expansion ◽  
Coupled Equations ◽  
Full Wave ◽  
Acoustic Travel Time ◽  
Ocean Acoustic Tomography ◽  
Strong Mode ◽  
Adiabatic Mode

We propose the modal spectrum of the PE field (MOSPEF) method for computing modal travel time under strong mode coupling environments. Instead of dealing with the coupled equations governing the complex modal amplitudes, the coupled modal amplitudes and phases are obtained from the spectral expansion of the full wave field given by the PE solution. Consequently, the method is very efficient and is free of problems at critical coupling points. Numerical simulations for computing modal travel time perturbations caused by a mesoscale eddy are conducted. A case which illustrates the failure of the adiabatic mode theory is also presented, the result of which raises an important issue for ocean acoustic tomography schemes.

Sign in / Sign up

Export Citation Format

Share Document