ACOUSTIC DOPPLER CURRENT PROFILER MEASUREMENTS OVER THE CHATHAM RISE

被引:43
作者
CHISWELL, SM
机构
[1] NIWA - Oceanographicy, National Institute of Water and Atmospheric Research Ltd., Wellington, P.O.Box 14-901, Kilbirnie
关键词
SUBTROPICAL CONVERGENCE; CURRENTS; ADCP; CHATHAM RISE; TIDES;
D O I
10.1080/00288330.1994.9516605
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
In September 1991, several north-south transects were made across the Chatham Rise along 179-degrees-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.
引用
收藏
页码:167 / 178
页数:12
相关论文
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