Amplified Msf tides at Kochi backwaters on the southwest coast of India

被引：0

作者：

Joseph, Antony ^{[1
]}

Balachandran, K. K. ^{[2
]}

Mehra, Prakash ^{[1
]}

Prabhudesai, R. G. ^{[1
]}

Kumar, Vijay ^{[1
]}

Agarvadekar, Yogesh ^{[1
]}

Revichandran, C. ^{[2
]}

Dabholkar, Nitin ^{[1
]}

机构：

[1] Natl Inst Oceanog CSIR, Panaji 403004, Goa, India

[2] Natl Inst Oceanog CSIR, Reg Ctr, Kochi 682018, India

来源：

CURRENT SCIENCE | 2009年 / 97卷 / 06期

关键词：

Amplification; bed materials; Kochi backwaters; nonlinear frictional interaction; shallowness; tides; LONG-PERIOD TIDES; WEST-COAST; NORTHERN COAST; GULF; SEA; PROPAGATION; ESTUARY; GUINEA; GAUGE; KUTCH;

D O I：

暂无

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Characteristics of tides at eight stations in Kochi backwaters (KB) located on the southwest coast of India are analysed. The Msf tidal constituents at several locations are found to be considerably larger than those estimated from the driving tidal potential. The Msf tidal amplitude amplifies progressively from Kochi inlet to the shallower upstream region where it exhibits similar to 3-fold amplification. At the upstream boundary, the Msf tide has the same order of magnitude as M-2 and K-1 tides. The nonlinear frictional interaction between M-2 and S-2 tides appears to be mainly responsible for the observed amplification. However, in regions where depth is < 2 m, variable bottom frictional effects at fortnightly periodicity plays an additional role in the Msf tidal amplification.

引用

页码：776 / 784

页数：9

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