Tidal Influence on the Transport of Suspended Matter in the Southwestern Yellow Sea at 6 ka

  1. Michael Z. Li3,
  2. Christopher R. Sherwood4 and
  3. Philip R. Hill5
  1. Katsuto Uehara1 and
  2. Yoshiki Saito2

Published Online: 3 JAN 2013

DOI: 10.1002/9781118311172.ch15

Sediments, Morphology and Sedimentary Processes on Continental Shelves: Advances in Technologies, Research, and Applications

Sediments, Morphology and Sedimentary Processes on Continental Shelves: Advances in Technologies, Research, and Applications

How to Cite

Uehara, K. and Saito, Y. (2012) Tidal Influence on the Transport of Suspended Matter in the Southwestern Yellow Sea at 6 ka, in Sediments, Morphology and Sedimentary Processes on Continental Shelves: Advances in Technologies, Research, and Applications (eds M. Z. Li, C. R. Sherwood and P. R. Hill), John Wiley & Sons, Ltd, Chichester, West Sussex, UK. doi: 10.1002/9781118311172.ch15

Editor Information

  1. 3

    Geological Survey of Canada (Atlantic), Natural Resources Canada, Bedford Institute of Oceanography, Dartmouth, Nova Scotia, B2Y 4A2 Canada

  2. 4

    U. S. Geological Survey, Woods Hole, MA 02543-1598 USA

  3. 5

    Natural Resources Canada, Sidney, BC, Canada V8L 4B2

Author Information

  1. 1

    Research Institute for Applied Mechanics, Kyushu University, 6-1 Kasuga Koen, Kasuga, Fukuoka, 816-8580, Japan

  2. 2

    Geological Survey of Japan, AIST, Tsukuba, Ibaraki, 305-8567, Japan

Publication History

  1. Published Online: 3 JAN 2013
  2. Published Print: 26 JAN 2012

ISBN Information

Print ISBN: 9781444350821

Online ISBN: 9781118311172

SEARCH

Keywords:

  • tidal simulation;
  • Changjiang estuary;
  • maximum Holocene transgression;
  • suspended sediment transport

Summary

Two-dimensional tidal simulations have been undertaken to investigate sediment transport induced by tidal currents around the palaeo-Changjiang estuary at 6 ka, when the estuary was more than 200 km landward from the present coastline.

Simulated phase distribution of tidal currents suggests that tidal currents at 6 ka in the southern Yellow Sea did not differ qualitatively from the present state except in Haizhou Bay and in the southwestern Yellow Sea. In the latter region, a radial current-ellipse pattern similar to that centered off present-day Qianggang is found off the mouth of the palaeo-Changjiang estuary.

Tidally-induced Lagrangian flow estimated from the trajectory of artificial tracers reveals that the radial current-ellipse pattern emerged both at present and 6 ka in the southwestern Yellow Sea has given rise to different patterns of Lagrangian transport: the trajectory forms a pair of clockwise and anticlockwise cells at present whereas only an anticlockwise cell appears in the 6-ka simulation. An additional tracer experiment for the 6-ka case indicates that the northern part of the palaeo-estuary should be dominated by particles from outside the estuary, whereas the influence of sediments discharged from the palaeo-Changjiang should be found mainly in the southern part of the estuary. This result is consistent with the grain-size distribution observed in the modern Changjiang delta.