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Determination of wave direction from linear and polygonal arrays

DRS at CSIR-National Institute of Oceanography

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Title Determination of wave direction from linear and polygonal arrays
 
Creator Fernandes, A.A.
Gouveia, A.D.
Nagarajan, R.
 
Subject Oceanography and Limnology
Oceanography and Limnology
wave direction
wave direction sensors
time series analysis
wave crests
linear waves
simulation
ISW, India
 
Description Two key issues that have militated against popular adoption of methods based on phase/time/path difference concepts for the determination of wave direction from array measurements are addressed in this paper: the first issue being insufficient documentation of Borgman (1974) in case of linear arrays; and the second issue being the failure of Esteva (1976, 1977) to correctly determine wave directions over the design range 25 to 7 sec of his polygonal array. This paper presents requisite documentation for linear arrays, and shows that Esterva's array can, in fact, be used to advantage over the entire design range. For simulated sinusoidal wave trains, analysis of both linear and polygonal arrays consistently yielded directions accurately, within plus or minus degree in case of polygonal arrays. Results were unaffected when random noise was included for representing ocean waves more realistically
 
Date 1995-09-09T10:01:43Z
2017-09-30T01:29:44Z
1995-09-09T10:01:43Z
2017-09-30T01:29:44Z
1988
 
Type Journal Article
 
Identifier Ocean�Engineering, vol.15(4); 1988; 345-357
0029-8018
http://drs.nio.org/drs/handle/2264/6998
 
Language en
 
Relation Ocean Eng
SCI
 
Publisher Elsevier