文献类型：期刊文献

中文题名：Observed water current and transport through Qiongzhou Strait during August 2010

英文题名：Observed water current and transport through Qiongzhou Strait during August 2010

作者：Wang Qingye[1,2];Wang Xiangwen[2];Xie Lingling[2];Shang Qingtong[2];Lu Yan[2]

机构：[1]Chinese Acad Sci, Inst Oceanol, Key Lab Ocean Circulat & Waves, Qingdao 266071, Peoples R China;[2]Guangdong Ocean Univ, Coll Ocean & Meteorol, Zhanjiang 524088, Peoples R China

年份：2014

卷号：32

期号：3

起止页码：703

中文期刊名：Chinese Journal of Oceanology and Limnology

外文期刊名：CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY

收录：SCI-EXPANDED(收录号：WOS:000335767800020)、CSTPCD、、Scopus(收录号：2-s2.0-84899861885)、WOS、CSCD、CSCD2013_2014

基金：Supported by the National Natural Science Foundation for Young Scientists of China (No. 40806012)

语种：英文

中文关键词：tidal current; residual current; transport volume; Qiongzhou Strait （QS）

外文关键词：tidal current; residual current; transport volume; Qiongzhou Strait (QS)

中文摘要：The velocity structure of the residual current across an entire section of the Qiongzhou Strait(QS) in summer is presented for the fi rst time. Shipboard Acoustic Doppler Current Profi le measurements, from the mid-region of the QS(110.18°E), were collected on 1–4 August 2010. The diurnal tidal currents had their maximum amplitudes between 4.24 and 20.24 m. Their amplitude along the major axis ranged from approximately 0.55 m/s in the middle part of the strait(20.15°N) to 0.84 m/s in the north part of the strait(20.20°N). Both anticlockwise and clockwise tidal current rotations exist in the QS. During the observation period(neap tide), a signifi cant westward residual current occupied almost the entire study section. Two velocity cores of westward current were observed at the northern part and near the deepest trough, although an eastward current appeared in the middle part of the transect. The deepest core was located near 62 m at 20.13°N, with a maximum velocity of-0.34 m/s. The shallower core was located at approximately 16 m at 20.20°N, with a maximum velocity of-0.33 m/s. The estimated total volume of water transported through the QS was-0.16 Sv. This value is an important boundary condition, applicable to numerical models studying coastal ocean circulation in the northwestern South China Sea.

外文摘要：The velocity structure of the residual current across an entire section of the Qiongzhou Strait (QS) in summer is presented for the first time. Shipboard Acoustic Doppler Current Profile measurements, from the mid-region of the QS (110.18A degrees E), were collected on 1-4 August 2010. The diurnal tidal currents had their maximum amplitudes between 4.24 and 20.24 m. Their amplitude along the major axis ranged from approximately 0.55 m/s in the middle part of the strait (20.15A degrees N) to 0.84 m/s in the north part of the strait (20.20A degrees N). Both anticlockwise and clockwise tidal current rotations exist in the QS. During the observation period (neap tide), a significant westward residual current occupied almost the entire study section. Two velocity cores of westward current were observed at the northern part and near the deepest trough, although an eastward current appeared in the middle part of the transect. The deepest core was located near 62 m at 20.13A degrees N, with a maximum velocity of -0.34 m/s. The shallower core was located at approximately 16 m at 20.20A degrees N, with a maximum velocity of -0.33 m/s. The estimated total volume of water transported through the QS was -0.16 Sv. This value is an important boundary condition, applicable to numerical models studying coastal ocean circulation in the northwestern South China Sea.