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Hindcasting of storm waves using neural networks

หน่วยงาน National Institute Of Oceanography (NIO), India

รายละเอียด

ชื่อเรื่อง : Hindcasting of storm waves using neural networks
นักวิจัย : Rao, S. , Mandal, S.
คำค้น : storms , cyclones , wind speed , surface water waves , wave hindcasting , coastal structures , offshore structures , wave heights , wave period , mathematical models
หน่วยงาน : National Institute Of Oceanography (NIO), India
ผู้ร่วมงาน : -
ปีพิมพ์ : 2548
อ้างอิง : Ocean engineering, Vol.32; 667-684p. , http://drs.nio.org/drs/handle/2264/906
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : -
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Cyclone generated waves play a significant role in the design of coastal and offshore structures. Instead of conventional numerical models, neural network approach is used in the present study to estimate the wave parameters from cyclone generated wind fields. Eleven cyclones, which crossed the southern east coast of India between 1962 and 1979, are considered for analysis in this paper. The parametric hurricane wave prediction model by Young (1988) [Young, I.R., 1988. Parametric hurricane wave prediction model. Journal of Waterways Port Coastal and Ocean Engineering 114(5), 637-652] is used for hindcasting the wave heights and periods. Estimation of wave heights and periods is carried out using back propagation neural network with three updated algorithms, namely Rprop, Quickprop and superSAB. In neural network, the estimation is carried out using (1) difference between central and peripheral pressure, radius of maximum wind and speed of forward motion of cyclone as input nodes and the wave heights and periods as output nodes and (2) wind speed and fetch as input nodes and wave heights and periods as output nodes. The estimated values using neural networks match well with those estimated using Young's model and a high correlation is obtained namely (0.99).

บรรณานุกรม :
Rao, S. , Mandal, S. . (2548). Hindcasting of storm waves using neural networks.
    : National Institute Of Oceanography (NIO), India.
Rao, S. , Mandal, S. . 2548. "Hindcasting of storm waves using neural networks".
    : National Institute Of Oceanography (NIO), India.
Rao, S. , Mandal, S. . "Hindcasting of storm waves using neural networks."
    : National Institute Of Oceanography (NIO), India, 2548. Print.
Rao, S. , Mandal, S. . Hindcasting of storm waves using neural networks. : National Institute Of Oceanography (NIO), India; 2548.