The nature frequency response to the tidal propagation in the Zhujiang River Estuary: a system and cybernetics approach

HU De-li; WU Chao-yu; JIA Liang-wen

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HU De-li, WU Chao-yu, JIA Liang-wen. The nature frequency response to the tidal propagation in the Zhujiang River Estuary: a system and cybernetics approach[J]. Haiyang Xuebao, 2011, 33(4): 29-37.

Citation:

HU De-li, WU Chao-yu, JIA Liang-wen. The nature frequency response to the tidal propagation in the Zhujiang River Estuary: a system and cybernetics approach[J]. Haiyang Xuebao, 2011, 33(4): 29-37.

HU De-li, WU Chao-yu, JIA Liang-wen. The nature frequency response to the tidal propagation in the Zhujiang River Estuary: a system and cybernetics approach[J]. Haiyang Xuebao, 2011, 33(4): 29-37.

Citation:

HU De-li, WU Chao-yu, JIA Liang-wen. The nature frequency response to the tidal propagation in the Zhujiang River Estuary: a system and cybernetics approach[J]. Haiyang Xuebao, 2011, 33(4): 29-37.

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The nature frequency response to the tidal propagation in the Zhujiang River Estuary: a system and cybernetics approach

Coastal Ocean Research Center of Sun Yat-sen University, Guangzhou 510275, China

Received Date: 2010-01-27

Abstract

Abstract

With the help of the controlled auto-regression and moving-average model(CARMA) based on system and cybernetics approaches, this paper studies the system response of the tidal propagation in the Zhujiang(Pearl)River Estuary(PRE). By system model identification, the CARMA models'parameters of the single-input single-output(SISO) for 59 stations in January 2001 of dry season and the double-input single-output(DISO) for 65 stations in July 1999 of flood season, were established with the tidal elevation and river inflow in the PRE. Frequency response analysis based on the system models provides some important insights into the PRE dynamic system. It is found that the nature frequency of PRE both in dry season and flood season are almost at the shallow water tidal bands with period 6~10 h.The experiments proved the nature frequency of resonance found in PRE were dependable, and also clarified that the response approach based on system and cybernetics can help us find the periods of resonance of the estuarine dynamical system.
- Zhujiang(Pearl)River Estuary,
- tidal propagation,
- gain of the frequency response,
- nature frequency of resonance

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References(21)

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