期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

Estimation of Bed Shear Stresses in the Pearl River Estuary 被引量：1

Estimation of Bed Shear Stresses in the Pearl River Estuary
下载PDF
导出
摘要 Mean and fluctuating velocities were measured by use of a pulse coherent acoustic Doppler profiler （PC-ADP） and an acoustic Doppler velocimeter in the tidal bottom boundary layer of the Pearl River Estuary. The bed shear stresses were estimated by four different methods： log profile （LP）, eddy correlation （EC）, turbulent kinetic energy （TKE）, and inertial dissipation （ID）. The results show that （a） all four methods for estimating bed stresses have advantages and disadvantages, and they should be applied simultaneously to obtain reliable frictional velocity and to identify potential sources of errors; （b） the LP method was found to be the most suitable to estimate the bed stresses in non-stratified, quasi-steady, and homogeneous flows; and （c） in the estuary where the semi-diurnal tidal current is dominant, bed shear stresses exhibit a strong quarter-diurnal variation. Mean and fluctuating velocities were measured by use of a pulse coherent acoustic Doppler profiler （PC-ADP） and an acoustic Doppler velocimeter in the tidal bottom boundary layer of the Pearl River Estuary. The bed shear stresses were estimated by four different methods： log profile （LP）, eddy correlation （EC）, turbulent kinetic energy （TKE）, and inertial dissipation （ID）. The results show that （a） all four methods for estimating bed stresses have advantages and disadvantages, and they should be applied simultaneously to obtain reliable frictional velocity and to identify potential sources of errors; （b） the LP method was found to be the most suitable to estimate the bed stresses in non-stratified, quasi-steady, and homogeneous flows; and （c） in the estuary where the semi-diurnal tidal current is dominant, bed shear stresses exhibit a strong quarter-diurnal variation.
作者 刘欢 吴加学
机构地区 Research Center of Coastal Ocean Science and Technology School of Marine Science
出处 《China Ocean Engineering》 SCIE EI CSCD 2015年第1期133-142,共10页 中国海洋工程（英文版）
基金 financially supported by the National Basic Research and Development Program of China(Grant No.2013CB956502) the National Natural Science Foundation of China(Grant Nos.41276079 and 41176067) the Open Research Foundation of Pearl River Hydraulic Research Institute(Grant No.2013KJ07)
关键词 bed shear stress bottom boundary layer PC-ADP Pearl River Estuary bed shear stress bottom boundary layer PC-ADP Pearl River Estuary
分类号 P731.2 [天文地球—海洋科学]
  • 相关文献

参考文献24

  • 1Ali, A. and Lemckert, C. J., 2009. A traversing system to measure bottom boundary layer hydraulic properties, Estuar. Coast. Shelf Sci., 83(4): 425-433.
  • 2Ackerman, J. D. and Hoover, T. M., 2001. Measurement of local bed shear stress in streams using a Preston-static tube, Limnol. Oceanogr., 46(8): 2080-2087.
  • 3Biron, P. M., Lane, S. N., Roy, A. G., Bradbrook, K. F. and Richards, K. S., 1998. Sensitivity of bed shear stress estimated from vertical velocity profiles: the problem of sampling resolution, Earth Surf Proc. Land., 23(2): 133-139.
  • 4Cheng, R. T., Ling, C. H., Gartner, J. W. and Wang, P. F., 1999. Estimates of bottom roughness length and bottom shear stress in South San Francisco Bay, California, J. Geophys. Res., 104(C4): 7715-7728.
  • 5Collins, M. B., Ke, X. and Gao, S., 1998. Tidally-induced flow structure over intertidal flats, Estuar. Coast. Shelf Sci., 46(2): 233-250.
  • 6Doron, P. K., Bertuccioli, L., Katz, J. and Osborn, T. R., 2001. Turbulence characteristics and dissipation estimates in the coastal ocean bottom boundary layer from PIV data, J. Phys. Oceanogr., 31(8): 2108-2134.
  • 7Elliott, A. J., 2002. The boundary layer character of tidal current in the Eastern Irish Sea, Estuar. Coast. ShelfSci., 55(3): 465-480.
  • 8Feddersen, F., Trowbridge, J. H. and Williams III, A. J., 2007. Vertical structure of dissipation in the nearshore, J. Phys. Oceanogr., 37(7): 1764-1777.
  • 9Kang, S. K., Foreman, M. G. G., Lie, H. J., Lee, J. H., Cherniawsky, J. and Yum, K. D., 2002. Two-layer tidal modeling of the Yellow and East China Seas with application to seasonal variability of the M2 tide, J. Geophys. Res., 107(C3): 6-1-6-18.
  • 10Kim, S. C., Friedrichs, C. T., Maa, J. P. Y. and Wright, L. D., 2000. Estimating bottom stress in tidal boundary layer from acoustic Doppler velocimeter data, J. Hydraul. Eng., ASCE, 126(6): 399-406.

同被引文献8

引证文献1

二级引证文献3

China Ocean Engineering
2015年 第1期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部