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Volume 24 Issue 2

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Article Navigation > Haiyang Xuebao > 2002 > 24(2): 30-38

YANG Qing-shu, SHEN Huan-ting, LUO Xian-lin, LUO Zhang-ren, YANG Can-ran, OU Su-ying. The secular trend of water level changes in the network channels of the Zhujiang River Delta[J]. Haiyang Xuebao, 2002, 24(2): 30-38.

Citation:

YANG Qing-shu, SHEN Huan-ting, LUO Xian-lin, LUO Zhang-ren, YANG Can-ran, OU Su-ying. The secular trend of water level changes in the network channels of the Zhujiang River Delta[J]. Haiyang Xuebao, 2002, 24(2): 30-38.

YANG Qing-shu, SHEN Huan-ting, LUO Xian-lin, LUO Zhang-ren, YANG Can-ran, OU Su-ying. The secular trend of water level changes in the network channels of the Zhujiang River Delta[J]. Haiyang Xuebao, 2002, 24(2): 30-38.

Citation:

YANG Qing-shu, SHEN Huan-ting, LUO Xian-lin, LUO Zhang-ren, YANG Can-ran, OU Su-ying. The secular trend of water level changes in the network channels of the Zhujiang River Delta[J]. Haiyang Xuebao, 2002, 24(2): 30-38.

The secular trend of water level changes in the network channels of the Zhujiang River Delta

1.
Institute of Estuarine and Coastal Research, Zhongshan University, Guangzhou, China
2.
State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China

Received Date: 2000-09-28
Rev Recd Date: 2001-08-05

Abstract

Considering the significant contribution of the periodic components to the secular trends of relative sea level(RSL) change,the Fourier transform and the maximum flat filter were applied to eliminate the effects of periodic components on the determination of the secular trends of RSL change.The secular trend of RSL change was determined by linear regression of low-pass series.The empirical orthogonal function(EOF) was used to analyse the characteristics of RSL change; the average rate of water level change in the Zhujiang River Delta was calculated by the main mode of EOF,which is 0.02 mm/a.According to the secular trends of gauge stations in the networks,the response of water level change to the channel degradation and aggradation was discussed.
- secular trend,
- periodic components,
- normal equation,
- Fourier transform

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