%0 Journal Article
%T Characteristics of low- frequency components of the near-bottom current in the Chinese Pioneer Area<br>Characteristics of low-frequency components of the near-bottom current in the Chinese Pioneer Area
%A Chujin Liang
%A Yijun Hou
%A Qi Chen
%A Ruzhou Dong
%A Lixian Dong
%A <br>LIANGChujin
%A HOUYijun
%A CHENQi
%A DONGRuzhou
%A DONGLixian
%J 科学通报(英文版)
%D 2004
%I 
%X Two deep-sea moorings were deployed respec-tively in the east area and the west area of Chinese Pioneer Area (CPA) in the tropic east Pacific to monitor the regional deep-sea dynamics below 600 meters above bottom (mab) from July 1997 to Oct. 1999. Results of statistics, spectral estimate and correlation analysis of the low-passed velocity data show that time scales of low-frequency components of the near-bottom currents are 25~120 days, in which 51-day period dominates the lower band of the frequency domain. Topographic features have obvious effect on low-frequency currents below 50 mab; modulations of the bot-tom-intensified sheared mean flow to the low-frequency cur-rents are the dynamic mechanism of the frequency shift that occurs in both the east-area and the west-area.
%K Chinese Pioneer Area
%K Low-frequency current
%K Fre-quency shift<br>低频组分
%K CPA
%K 中国先进地区
%K 频率转移
%K 低频流
%K 深海动力学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=96E6E851B5104576C2DD9FC1FBCB69EF&jid=DD6615BC9D2CFCE0B6F945E8D5314523&aid=B912686F24C51648D47125C878032A34&yid=D0E58B75BFD8E51C&vid=2A3781E88AB1776F&iid=708DD6B15D2464E8&sid=01A9864A3FFB986F&eid=53A4507B400B4E65&journal_id=1001-6538&journal_name=科学通报(英文版)&referenced_num=1&reference_num=10