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Analysis of underwater rain noise from shallow water ambient noise measurements in Indian seas

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Title Analysis of underwater rain noise from shallow water ambient noise measurements in Indian seas
 
Creator Ashokan, M.
Latha, G.
Ramesh, R.
Thirunavukkarasu, A.
 
Subject Shallow waters
Rain noise
Coherence
Directionality
 
Description 144-149
Ocean ambient noise data
were collected in shallow waters of Indian seas. The surface parameters like
wind speed, wind direction and rainfall rate were measured by a buoy mounted
anemometer and precipitation type rain gauge. On retrieving and analysing the
ambient noise data sets, heavy rainfall noise was observed in the power
spectral density over a frequency band from 2-7  kHz. Ambient noise intensity in the acoustic
data correlate well with the rainfall rates recovered from the rain gauge. This
paper presents the work carried out on the sea surface noise coherence and
vertical directionality pertaining to rain in shallow waters of Bay of Bengal
and Arabian Sea. In Indian seas so far no research work has been carried out on
analysing the rainfall noise coherence and directionality and this is the first
such study which will be useful further for deriving rain parameters such as
rain drop size, number of drops, etc.
 
Date 2016-07-04T07:08:19Z
2016-07-04T07:08:19Z
2015-02
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/34622
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.44(02) [February 2015]