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Author: NAVAL OCEANOGRAPHIC OFFICE WASHINGTON D C.
Publisher:
ISBN:
Category :
Languages : en
Pages : 17
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Book Description
Describes a mathematical model of sound velocity for the Indian Ocean that can predict sound velocity at depths between 200 and 2450m within 2 m/sec RMS. It is used in computer generation of acoustic province charts. (Author).
Author: NAVAL OCEANOGRAPHIC OFFICE WASHINGTON D C.
Publisher:
ISBN:
Category :
Languages : en
Pages : 17
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Book Description
Describes a mathematical model of sound velocity for the Indian Ocean that can predict sound velocity at depths between 200 and 2450m within 2 m/sec RMS. It is used in computer generation of acoustic province charts. (Author).
Author: L. S. Bark
Publisher: Elsevier
ISBN: 1483164950
Category : Science
Languages : en
Pages : 218
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Book Description
Tables of the Velocity of Sound in Sea Water contains tables of the velocity of sound in sea water computed on a "Strela-3" high-speed electronic computer and a T-5 tabulator at the Computational Center of the Academy of Sciences. Knowledge of the precise velocity of sound in sea water is of great importance when investigating sound propagations in the ocean and when solving practical problems involving the use of hydro-acoustic devices. This book demonstrates the computations made for the velocity of sound in sea water, which can be found in two ways: by direct measurement with the aid of suitable equipment, and by calculation from formula expressing the dependence of the velocity on the temperature and salinity of the water. This book will be of great value to researchers and students.
Author: J. Potter
Publisher: Springer Science & Business Media
ISBN: 9401133123
Category : Science
Languages : en
Pages : 599
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Book Description
Fifteen years ago NATO organised a conference entitled 'Ocean Acoustic Modelling'. Many of its participants were again present at this variability workshop. One such participant. in concluding his 1975 paper, quoted the following from a 1972 literature survey: ' ... history presents a sad lack of communications between acousticians and oceanographers' Have we done any better in the last 15 years? We believe so, but only moderately. There is still a massive underdeveloped potential for acousticians and oceanographers to make significant progress together. Currently, the two camps talk together insufficiently even to avoid simple misun derstandings. such as those in Table 1. Table 1 Ocsanographic and acoustic jargon (from an idea by Pol/ardi Jargon Oceanographic use Acoustic use dbordB decibar (depth in m) decibel (energy level) PE primitive equations parabolic equations convergence zone converging currents converging rays (downwelling water) (high energy density) front thermohaline front wave, ray or time front speed water current speed sound propagation speed 1 The list goes on.
Author: Tad S. Murty
Publisher: CRC Press
ISBN: 0203964438
Category : Science
Languages : en
Pages : 526
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Book Description
The Indian Ocean tsunami of December 2004 is considered to have been one of the worst natural disasters in history, affecting twelve countries, from Indonesia to Somalia. 175,000 people are believed to have lost their lives, almost 50,000 were registered as missing and 1.7 million people were displaced. As well as this horrendous toll on human life
Author:
Publisher:
ISBN:
Category : Music
Languages : en
Pages : 1334
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Book Description
Author: Don F. Fenner
Publisher:
ISBN:
Category : Indian Ocean
Languages : en
Pages : 118
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Book Description
Author: L. S. Bark
Publisher:
ISBN:
Category :
Languages : en
Pages : 180
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Book Description
Author: J. G. Colborn
Publisher:
ISBN:
Category : Indian Ocean
Languages : en
Pages : 176
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Book Description
Initial results of a continuing study to analyze and summarize the acoustically significant characteristics of the vertical sound-speed structure in the Indian Ocean are presented for purposes of acoustic model inputs and future exercise planning in the region. Data displays cover the western Indian Ocean west of 75 degrees E and north of 20 degrees S. Hydrocast data with computed sound speeds at standard depths provide the basic information to define areas of the Indian Ocean that are reasonably homogeneous with regard to sound-speed properties and can be summarized by a single profile for each season. Seasonal data presentations of bottom conjugate depth (the shallow conjugate of the bottom sound speed) and depth excess (water depth below the deep conjugate of the near-surface sound-speed maximum) indicate the primarily bottom-limited situation in the western Indian Ocean and identify the restricted areas of the Somali Basin with convergence-zone propagation potential. The upper-layer characteristics of layer depth, in-layer gradient, and below-layer gradient are displayed seasonally in contour format based on sound-speed-converted BT and XBT temperature data. Emphasis is placed on the significant effects of the seasonal monsoons, and in particular the strong SW Monsoon, on the near-surface structure. Results based on the two data sources are presented separately and some comparisons are made.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 892
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Book Description
Author: L.S. Bark
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
