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Acoustic Doppler Current Profiler measurements over the Chatham Rise

 

作者: StephenM. Chiswell,  

 

期刊: New Zealand Journal of Marine and Freshwater Research  (Taylor Available online 1994)
卷期: Volume 28, issue 2  

页码: 167-178

 

ISSN:0028-8330

 

年代: 1994

 

DOI:10.1080/00288330.1994.9516605

 

出版商: Taylor & Francis Group

 

关键词: subtropical convergence;currents;ADCP;Chatham Rise;tides

 

数据来源: Taylor

 

摘要:

In September 1991, several north‐south transects were made across the Chatham Rise along 179°E, using a ship equipped with a 150 kHz Acoustic Doppler Current Profiler (ADCP). Current meters were deployed near the crest of the rise. There is good agreement between the ADCP and current meter measurements. Zonal (along‐rise) currents are dominated by diurnal tides, whereas meridian (cross‐rise) currents are dominated by semi‐diurnal tides. An estimate of the mean currents over 4 days of intensive observations over the northern flank of the Chatham Rise shows currents of up to 0.15 m s‐1, probably associated with meanders of the Subtropical Convergence.

 

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