The Effect of Internal Waves on the Sound Propagation in the Shelf Zone of the Sea of Japan in Different Seasons

2005 ◽  
Vol 51 (4) ◽  
pp. 449 ◽  
Author(s):  
A. N. Rutenko
Keyword(s):  
Internal Waves ◽  
Sea Of Japan ◽  
Sound Propagation ◽  
Shelf Zone ◽  
The Sea Of Japan ◽  
Different Seasons

Effect of tide on sound propagation in the shelf zone of the Sea of Japan

2000 ◽  
Vol 46 (5) ◽  
pp. 534-543 ◽  
Author(s):  
L. F. Bondar’ ◽  
L. K. Bugaeva ◽  
A. N. Rutenko
Keyword(s):  
Sea Of Japan ◽  
Sound Propagation ◽  
Shelf Zone ◽  
The Sea Of Japan

scholarly journals Probabilistic Characteristics of Intensive Short-Period Internal Waves in the Sea of Japan

2020 ◽  
Vol 27 (5) ◽  
Author(s):  
M. V. Kokoulina ◽  
O. E. Kurkina ◽  
E. A. Rouvinskaya ◽  
A. A. Kurkin ◽  
◽  
...  
Keyword(s):  
Internal Waves ◽  
Sea Of Japan ◽  
Peter The Great Bay ◽  
Statistical Characteristics ◽  
The Sea Of Japan ◽  
Peter The Great ◽  
Short Period ◽  
Wave Heights ◽  
Log Normal ◽  
Log Normal Distribution

Purpose. The paper is aimed at studying the regional features of the internal waves’ field in the Sea of Japan (the Peter the Great Bay) based on the field data, namely, determination of the internal waves’ statistical characteristics that can be used to predict possibility of generating the waves of extreme amplitudes. Methods and Results. The records of water temperature variability in the Peter the Great Bay (the depth at the point of measurements is 42 m) obtained for October 11 – 20, 2011 were used as the initial data. Sampling frequency of the records was 1 s that permitted to analyze the shape of the short-period internal waves. The data on the salinity vertical distribution near the measurement point was also used. The law of the power density spectrum decay (as applied to the studied record) is well described by the Garrett – Munk model for the Sea of Japan zone being under consideration. The calculated temporal series of density were applied for obtaining the basic statistical characteristics including the statistical moments. Besides, empirical distribution for such parameters as the wave heights, periods and steepness and the wave slope amplitude was approximated by the log-normal distribution law and analyzed. The expected wave heights were forecasted using the Poisson statistics. Conclusions. It is shown that the probabilistic characteristics of the internal waves are described well by the log-normal distribution. Based on repeatability of the internal waves’ heights, probability of appearance of intensive disturbances is estimated. It is shown that within 10 days, occurrence of a short-period wave with the height not less than 7 m is guaranteed at the observation point at the 42 m depth. Keywords intensive internal waves, in situ data, probabilistic characteristics of extreme waves, shelf, Sea of Japan.

ON COASTAL - OPEN SEA DYNAMIC INTERACTIONS DEFINING PRODUCTIVITY AND ECOLOGY OF SHELF AND ADJACENT TO SHELF WATERS

2017 ◽  
Author(s):  
Vadim Navrotsky ◽  
Vadim Navrotsky
Keyword(s):  
Boundary Layers ◽  
Internal Waves ◽  
Stratified Medium ◽  
Shelf Zone ◽  
Small Scale ◽  
The Sea Of Japan ◽  
Bottom Boundary ◽  
Open Sea ◽  
Bottom Boundary Layers ◽  
Near Shore

It is known that considerable part of living matter in the ocean falls out of biological cycle irretrievably by way of sedimentation. It means that quasi-stationary state of oceanic ecosystems is possible only with supply of mineral and organic matter from land. That supply, which includes also contaminating matter, takes place mainly in near-shore regions, concentrates in bottom boundary layers, and is transferred to the open sea via shelves by means of horizontal and vertical mixing. Effective mixing in shelves is carried out by small-scale processes, which are considerably fed by energy of large-scale processes from out-of-shelf regions. The main objective of our paper is to identify mechanisms of energy transfer from large to small-scale motions and from open sea to near-shore areas. Our experiments and observations in the shelf zone of the Sea of Japan revealed important specific features in stratified bottom boundary layers: 1) Temporal intermittence of internal waves (IW) in near-bottom layers and their transformation into sequences of stratified boluses moving in non-stratified medium. 2) Extremely high horizontal and vertical velocities in the near-bottom layers. 3) Considerable power fluctuations caused by correlated fluctuations of near-bottom pressure and velocity. 4) Non-monotonic vertical structure of temperature and velocity leading to possibility of simultaneous existing of IW breaking and secondary generation of high-frequency IW by turbulence in layers with high curvature of velocity profiles. Taking into account satellite observations of high correlation between chlorophyll-a concentration in coastal and in out-of-shelf waters, as well as dispersion relations for different types of internal waves and results of our field experiments we suggest that interconnection of biological parameters in coastal and in open sea waters is exercised substantially by gravitational and inertial internal waves generated by tides and eddies in the region of continental slope near the shelf boundary.

scholarly journals The Characteristics of Internal Waves in the Sea of Japan

1998 ◽  
Vol 14 ◽  
pp. 5-9
Author(s):  
Masabumi Seto ◽  
Shinya Otake ◽  
Zyuichi Okuno ◽  
Makoto Nakamura
Keyword(s):  
Internal Waves ◽  
Sea Of Japan ◽  
The Sea Of Japan

Observations of internal waves and thermocline splitting near a shelf break of the Sea of Japan (East Sea)

2004 ◽  
Vol 24 (12) ◽  
pp. 1375-1395 ◽  
Author(s):  
V.V Navrotsky ◽  
I.D Lozovatsky ◽  
E.P Pavlova ◽  
H.J.S Fernando
Keyword(s):  
Internal Waves ◽  
Sea Of Japan ◽  
Shelf Break ◽  
East Sea ◽  
The Sea Of Japan

A pilot acoustic experiment to determine the coordinates of a submarine object in the shelf zone of the Sea of Japan

2010 ◽  
Vol 433 (1) ◽  
pp. 982-984 ◽  
Author(s):  
V. A. Akulichev ◽  
Yu. V. Matvienko ◽  
Yu. N. Morgunov ◽  
Yu. A. Polovinka ◽  
R. N. Rylov
Keyword(s):  
Sea Of Japan ◽  
Shelf Zone ◽  
The Sea Of Japan

On intense internal waves in the coastal zone of the Peter the Great Bay (the Sea of Japan)

2016 ◽  
Vol 41 (9) ◽  
pp. 629-634 ◽  
Author(s):  
I. O. Yaroshchuk ◽  
A. P. Leont’ev ◽  
A. V. Kosheleva ◽  
A. A. Pivovarov ◽  
A. N. Samchenko ◽  
...  
Keyword(s):  
Internal Waves ◽  
Coastal Zone ◽  
Sea Of Japan ◽  
Peter The Great Bay ◽  
The Sea Of Japan ◽  
Peter The Great ◽  
Great Bay
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