Quantifying the spatial variability of low frequency acoustic propagation in the Northern East China Sea

2016 ◽  
Vol 140 (4) ◽  
pp. 3014-3014
Author(s):  
Sungho Cho ◽  
Donhyug Kang ◽  
Byoung-Nam Kim ◽  
Seom-Kyu Jung ◽  
Jee Woong Choi
Keyword(s):  
Spatial Variability ◽  
East China Sea ◽  
Low Frequency ◽  
Acoustic Propagation ◽  
East China ◽  
China Sea

The Shelf-Edge Frontal Structure in the Central East China Sea and Its Impact on Low-Frequency Acoustic Propagation

2004 ◽  
Vol 29 (4) ◽  
pp. 1011-1031 ◽  
Author(s):  
S.R. Ramp ◽  
C.-S. Chiu ◽  
F.L. Bahr ◽  
Y. Qi ◽  
P.H. Dahl ◽  
...  
Keyword(s):  
East China Sea ◽  
Low Frequency ◽  
Acoustic Propagation ◽  
East China ◽  
Shelf Edge ◽  
China Sea ◽  
Frontal Structure

Tidal and low-frequency currents along the CK Line (31deg 45min N) over the East China Sea shelf

2012 ◽  
Vol 50-51 ◽  
pp. 41-53 ◽  
Author(s):  
Yutaka Yoshikawa ◽  
Takeshi Matsuno ◽  
Taku Wagawa ◽  
Toru Hasegawa ◽  
Kou Nishiuchi ◽  
...  
Keyword(s):  
East China Sea ◽  
Low Frequency ◽  
East China ◽  
The East China Sea ◽  
China Sea ◽  
East China Sea Shelf

scholarly journals Variation and Episodes of Near-Inertial Internal Waves on the Continental Slope of the Southeastern East China Sea

2021 ◽  
Vol 9 (8) ◽  
pp. 916
Author(s):  
Bing Yang ◽  
Po Hu ◽  
Yijun Hou
Keyword(s):  
Continental Slope ◽  
East China Sea ◽  
Internal Waves ◽  
Low Frequency ◽  
Blue Shift ◽  
Vertical Shear ◽  
East China ◽  
Left Hand ◽  
China Sea ◽  
Generation Mechanisms

Based on in situ observations, six episodes of near-inertial internal waves (NIWs) were detected on the East China Sea (ECS) continental slope, and the mechanisms and characteristics of them were examined. The generation mechanisms of the observed NIWs included typhoon, wind burst, lateral propagation, and energy transfer from low-frequency flow. The depth-integrated near-inertial kinetic energy (NIKE) showed no significant seasonal variation, and the annual mean NIKE and near-inertial currents were 400 J/m2 and 3.50 cm/s, respectively. Downward propagation of NIKE was evident in the small wavenumber band according to the rotary vertical wavenumber spectra. The NIKE was subsurface-intensified, and the near-inertial vertical shear reached 0.01 s−1. The vertical phase speeds of the NIWs ranged from 5 to 19 m/h. The frequencies of the NIWs were mostly red-shifted, however, blue-shift also existed. One episode had both blue- and red-shifted frequencies vertically, and had both upward and downward propagating vertical phase speeds. The e-folding times of the observed NIWs ranged from 4 to 11 days, which were influenced by successive wind bursts and background vorticity. On the left-hand side of Kuroshio, the background vorticity is usually positive; however, the NIWs were almost red-shifted, which resulted from the Doppler shift of the Kuroshio.

A comparison of East China Sea low frequency bottom scattering strength determinations

2002 ◽  
Vol 112 (5) ◽  
pp. 2362-2362
Author(s):  
P. G. Cable ◽  
R. Gibson ◽  
Y. Dorfman ◽  
D. P. Knobles ◽  
T. W. Yudichak ◽  
...  
Keyword(s):  
East China Sea ◽  
Low Frequency ◽  
East China ◽  
China Sea ◽  
Scattering Strength

scholarly journals Spatial variability in the abundance, composition, and age of organic matter in surficial sediments of the East China Sea

2013 ◽  
Vol 118 (4) ◽  
pp. 1495-1507 ◽  
Author(s):  
Ying Wu ◽  
Timothy Eglinton ◽  
Liyang Yang ◽  
Bing Deng ◽  
Daniel Montluçon ◽  
...  
Keyword(s):  
Organic Matter ◽  
Spatial Variability ◽  
East China Sea ◽  
East China ◽  
The East China Sea ◽  
Surficial Sediments ◽  
China Sea
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