scholarly journals Identification of Methane Plume Area Using Acoustic Echo Sounder Images and GPS Data

2016 ◽  
Vol 134 (0) ◽  
pp. 73-80
Author(s):  
Hajime CHIBA ◽  
Akira TAKEUCHI ◽  
Toshiro HATA ◽  
Mitsuharu YAGI
Keyword(s):  
Gps Data ◽  
Plume Area ◽  
Acoustic Echo ◽  
Echo Sounder

Preliminary Results from the GATE Acoustic Echo Sounder

1976 ◽  
Vol 57 (9) ◽  
pp. 1142-1149 ◽  
Author(s):  
P. A. Mandics ◽  
F. F. Hall
Keyword(s):  
Boundary Layer ◽  
Mixed Layer ◽  
Marine Boundary Layer ◽  
Doppler Frequency ◽  
Weather Conditions ◽  
Structure And Dynamics ◽  
Substantial Modification ◽  
Weather Events ◽  
Acoustic Echo ◽  
Echo Sounder

An acoustic echo sounder mounted on the NOAA ship Oceanographer during GATE proved to be a valuable tool for investigating the structure and dynamics of the tropical marine boundary layer up to 800 m in height. Under suppressed weather conditions the facsimile-recorded echo intensity returns depicted a mixed layer characterized by convective plumes rising from the surface of the water to 400 m. Disturbed weather events resulted in a substantial modification of the boundary layer; layered structures formed that at times limited the depth of the mixed layer to 100 m. The Doppler frequency shift of the acoustic returns made it possible to determine the vertical velocity field.

Planetary boundary-layer turbulence studies from acoustic echo sounder and in-situ measurements

1973 ◽  
Vol 4 (1-4) ◽  
pp. 449-474 ◽  
Author(s):  
B. R. Bean ◽  
A. S. Frisch ◽  
L. G. McAllister ◽  
J. R. Pollard
Keyword(s):  
Boundary Layer ◽  
Planetary Boundary Layer ◽  
In Situ Measurements ◽  
Boundary Layer Turbulence ◽  
Acoustic Echo ◽  
Echo Sounder

Measurement of vorticity in the surface layer using an acoustic echo sounder array

1977 ◽  
Vol 6 (2) ◽  
pp. 127-137 ◽  
Author(s):  
J.E. Gaynor ◽  
F.F. Hall ◽  
J.G. Edinger ◽  
G.R. Ochs
Keyword(s):  
Surface Layer ◽  
Acoustic Echo ◽  
Echo Sounder
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