Directional characteristics of winter waves off Taishi coast of Taiwan

Zsu-Hsin Chuang, C. C. Kao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A spatial array of wave gauges installed on an observation platform has been designed and arranged to measure the local features of directional wave off Taishi coast of Taiwan. A new method, named the Bayesian Parameter Estimation Method (BPEM), was then developed and adopted to determine the main direction and the directional spreading parameter of directional spectra. Also, the Mitsuyasu's empirical formula of directional energy spreading was justified to be representative of wave field. It was shown that the bigger the waves age, the more rapid decrease in spreading. Nevertheless, the major portion of the wave energy, which is around the peak frequency, may not be completely related to the local wind condition. The relation between the parameter S(max) and the wave age, as suggested by Mitsuyasu's formula, may be improper in this area. The field data were shown that the wave steepness is more related to S(max) than wave age does. In general, the values of S(max) decrease as the values of the wave steepness increase.

Original languageEnglish
Title of host publicationCoastal engineering and marina developments.Proceedings of the 4th international conference on computer modelling of seas and coastal regions. Lemnos, May 1999.
EditorsC.A. Brebbia, P. Anagnostopoulos, C.A. Brebbia, P. Anagnostopoulos
PublisherWITPress
Pages253-262
Number of pages10
ISBN (Print)1853126861
Publication statusPublished - 1999 Dec 1
EventProceedings of the 4th international conference on computer modellling of seas and oceans. Coastal engineering and marina developments '99. - Lemnos, Greece
Duration: 2099 May 12099 May 1

Other

OtherProceedings of the 4th international conference on computer modellling of seas and oceans. Coastal engineering and marina developments '99.
CountryGreece
CityLemnos
Period99-05-0199-05-01

Fingerprint

Coastal zones
coast
winter
wave field
estimation method
wave energy
gauge
Parameter estimation
Gages
energy

All Science Journal Classification (ASJC) codes

  • Earth and Planetary Sciences(all)
  • Engineering(all)
  • Environmental Science(all)

Cite this

Chuang, Z-H., & Kao, C. C. (1999). Directional characteristics of winter waves off Taishi coast of Taiwan. In C. A. Brebbia, P. Anagnostopoulos, C. A. Brebbia, & P. Anagnostopoulos (Eds.), Coastal engineering and marina developments.Proceedings of the 4th international conference on computer modelling of seas and coastal regions. Lemnos, May 1999. (pp. 253-262). WITPress.
Chuang, Zsu-Hsin ; Kao, C. C. / Directional characteristics of winter waves off Taishi coast of Taiwan. Coastal engineering and marina developments.Proceedings of the 4th international conference on computer modelling of seas and coastal regions. Lemnos, May 1999.. editor / C.A. Brebbia ; P. Anagnostopoulos ; C.A. Brebbia ; P. Anagnostopoulos. WITPress, 1999. pp. 253-262
@inproceedings{5603bd7490a74ba097413d668800b80d,
title = "Directional characteristics of winter waves off Taishi coast of Taiwan",
abstract = "A spatial array of wave gauges installed on an observation platform has been designed and arranged to measure the local features of directional wave off Taishi coast of Taiwan. A new method, named the Bayesian Parameter Estimation Method (BPEM), was then developed and adopted to determine the main direction and the directional spreading parameter of directional spectra. Also, the Mitsuyasu's empirical formula of directional energy spreading was justified to be representative of wave field. It was shown that the bigger the waves age, the more rapid decrease in spreading. Nevertheless, the major portion of the wave energy, which is around the peak frequency, may not be completely related to the local wind condition. The relation between the parameter S(max) and the wave age, as suggested by Mitsuyasu's formula, may be improper in this area. The field data were shown that the wave steepness is more related to S(max) than wave age does. In general, the values of S(max) decrease as the values of the wave steepness increase.",
author = "Zsu-Hsin Chuang and Kao, {C. C.}",
year = "1999",
month = "12",
day = "1",
language = "English",
isbn = "1853126861",
pages = "253--262",
editor = "C.A. Brebbia and P. Anagnostopoulos and C.A. Brebbia and P. Anagnostopoulos",
booktitle = "Coastal engineering and marina developments.Proceedings of the 4th international conference on computer modelling of seas and coastal regions. Lemnos, May 1999.",
publisher = "WITPress",

}

Chuang, Z-H & Kao, CC 1999, Directional characteristics of winter waves off Taishi coast of Taiwan. in CA Brebbia, P Anagnostopoulos, CA Brebbia & P Anagnostopoulos (eds), Coastal engineering and marina developments.Proceedings of the 4th international conference on computer modelling of seas and coastal regions. Lemnos, May 1999.. WITPress, pp. 253-262, Proceedings of the 4th international conference on computer modellling of seas and oceans. Coastal engineering and marina developments '99., Lemnos, Greece, 99-05-01.

Directional characteristics of winter waves off Taishi coast of Taiwan. / Chuang, Zsu-Hsin; Kao, C. C.

Coastal engineering and marina developments.Proceedings of the 4th international conference on computer modelling of seas and coastal regions. Lemnos, May 1999.. ed. / C.A. Brebbia; P. Anagnostopoulos; C.A. Brebbia; P. Anagnostopoulos. WITPress, 1999. p. 253-262.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Directional characteristics of winter waves off Taishi coast of Taiwan

AU - Chuang, Zsu-Hsin

AU - Kao, C. C.

PY - 1999/12/1

Y1 - 1999/12/1

N2 - A spatial array of wave gauges installed on an observation platform has been designed and arranged to measure the local features of directional wave off Taishi coast of Taiwan. A new method, named the Bayesian Parameter Estimation Method (BPEM), was then developed and adopted to determine the main direction and the directional spreading parameter of directional spectra. Also, the Mitsuyasu's empirical formula of directional energy spreading was justified to be representative of wave field. It was shown that the bigger the waves age, the more rapid decrease in spreading. Nevertheless, the major portion of the wave energy, which is around the peak frequency, may not be completely related to the local wind condition. The relation between the parameter S(max) and the wave age, as suggested by Mitsuyasu's formula, may be improper in this area. The field data were shown that the wave steepness is more related to S(max) than wave age does. In general, the values of S(max) decrease as the values of the wave steepness increase.

AB - A spatial array of wave gauges installed on an observation platform has been designed and arranged to measure the local features of directional wave off Taishi coast of Taiwan. A new method, named the Bayesian Parameter Estimation Method (BPEM), was then developed and adopted to determine the main direction and the directional spreading parameter of directional spectra. Also, the Mitsuyasu's empirical formula of directional energy spreading was justified to be representative of wave field. It was shown that the bigger the waves age, the more rapid decrease in spreading. Nevertheless, the major portion of the wave energy, which is around the peak frequency, may not be completely related to the local wind condition. The relation between the parameter S(max) and the wave age, as suggested by Mitsuyasu's formula, may be improper in this area. The field data were shown that the wave steepness is more related to S(max) than wave age does. In general, the values of S(max) decrease as the values of the wave steepness increase.

UR - http://www.scopus.com/inward/record.url?scp=0033510516&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0033510516&partnerID=8YFLogxK

M3 - Conference contribution

SN - 1853126861

SP - 253

EP - 262

BT - Coastal engineering and marina developments.Proceedings of the 4th international conference on computer modelling of seas and coastal regions. Lemnos, May 1999.

A2 - Brebbia, C.A.

A2 - Anagnostopoulos, P.

A2 - Brebbia, C.A.

A2 - Anagnostopoulos, P.

PB - WITPress

ER -

Chuang Z-H, Kao CC. Directional characteristics of winter waves off Taishi coast of Taiwan. In Brebbia CA, Anagnostopoulos P, Brebbia CA, Anagnostopoulos P, editors, Coastal engineering and marina developments.Proceedings of the 4th international conference on computer modelling of seas and coastal regions. Lemnos, May 1999.. WITPress. 1999. p. 253-262