Tides and tidal currents in the Pearl River estuary

There are no files associated with this record.

Title Tides and tidal currents in the Pearl River estuary
Author Maoa, Qingwen; Shia, Ping; Yin, Kedong; Ganb, Jianping; Qi, Yiquan
Journal Name Continental Shelf Research
Year Published 2004
Place of publication UK
Publisher Elsevier
Abstract Several cruises were conducted to investigate the variability in tidal levels, tidal flows, and water circulation in the Pearl River estuary during the dry and wet seasons in 1998. Unlike other temperate estuaries, the average tidal range was small in the offshore waters and increased gradually towards the estuary, reaching the maximum in the upstream part of the Pearl River estuary. The extent of the amplitude increment was different between the diurnal and semi-diurnal constituents. The percentage of sea level variance in the semi-diurnal band increased when the tide progressed upstream, but it reversed in the diurnal band. Thus, the accentuated sea level variance in the semi-diurnal band resulted in the increased amplitudes of semi-diurnal constituents which were larger than diurnal constituents. The distribution of the mean current in the estuary depicted an anti-clockwise circulation in the estuary: freshwater was dominant on the western side of the estuary, while salt water was dominant on the eastern side. The Pearl River estuary also showed a typical salt wedge circulation: a salt water intrusion largely occurred via the eastern channel in the estuary while river outflow dominated the western channel. In this study, long time series and large spatial coverage of tide and current observations allow in depth analysis of the temporal and spatial variations of tide and circulation, and the associated influence from open ocean in the Pearl River estuary.
Peer Reviewed Yes
Published Yes
Publisher URI http://www.elsevier.com/wps/find/journaldescription.cws_home/662/description#description
Alternative URI http://dx.doi.org/10.1016/j.csr.2004.06.008
Volume 24
Issue Number 16
Page from 1797
Page to 1808
ISSN 0278-4343
Date Accessioned 2007-07-11
Language en_AU
Faculty Faculty of Environmental Sciences
Subject Physical Oceanography
URI http://hdl.handle.net/10072/20877
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1x

Show simple item record

Griffith University copyright notice