Skip to main content
Log in

Seasonal changes of the tidal flat from Jinhuigang to Caojing along the north bank of Hangzhou Bay

  • Published:
Chinese Journal of Oceanology and Limnology Aims and scope Submit manuscript

Abstract

This paper deals with the seasonal changes of the tidal flat along the north bank of Hangzhou Bay. Analysis of a one year set of weekly measured tidal flat profiles from Jinhuigang to Caojing shows that the tidal flat on the north bank of Hangzhou Bay accretes during winter and erodes during summer. To identify the characteristic patterns of the tidal flat spatio-temporal variations, Empirical Orthogonal Function (EOF) is applied on the tidal flat profile data. The results show that most of the variations of the tidal flat profiles can be represented by three eigenfunctions corresponding to the three largest eigenvalues. The first eigenfunction represents the long-term variation of the tidal flat over a year, the second eigenfunction represents the seasonal changes of the tidal flat resulting from the seasonal variations in wave regime, the third eigenfunction indicates sediment exchanges between different parts of the tidal flat associated with the variations of sea level.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Anderson, F. and Blanck, I., 1980. A temporal and spatial study of mudflat erosion and derosition.J. Sed. Petrology 51(3): 729–736.

    Google Scholar 

  • Aranuvachapun, S. and Johnson, A. J., 1979. Beach profiles at Gorleston and Great Yarmouth.Coastal Eng. 2: 201–213.

    Article  Google Scholar 

  • Aubrey, D. G., 1979. Seasonal patterns of onshore-offshore sediment movement.J. Geophys. Res. 84: 6347–6354.

    Article  Google Scholar 

  • Aubrey, D. G., 1980. The statistical prediction of beach changes in southern California.J. Geophys. Res. 85(C6): 3264–3276.

    Article  Google Scholar 

  • Carling, P. A., 1982. Temporal and spatial variation in intertidal sedimentation rates.Sedimentology 29: 17–23.

    Article  Google Scholar 

  • Clarke, D. J. and Eliot, I. G., 1988. Low-frequency variation in the seasonal intensity of coastal weather systems and sediment movement on the beachface of a sandy beach.Mar. Geol. 79: 23–39.

    Article  Google Scholar 

  • Clarke, D. J., Eliot, I. G. and Frew, J. R., 1985. Variation in subaerial beach sediment volume on a small sandy beach over a monthly lunar tidal cycle.Mar. Geol. 58: 319–344.

    Article  Google Scholar 

  • Evans, G., 1965. Intertidal flat sediments and their environments of deposition in the Wash. Quart.J. Soc. London 121(482): 209–241.

    Article  Google Scholar 

  • Kutzbatch, J. E., 1967. Empirical eigenvectors of sea-level pressure, surface temperature and precipitation complexes over North America.J. Appl. Meteorol. 6: 791–802.

    Article  Google Scholar 

  • Katoh, K. and Yoshimatsu, A. 1984. A new method of three-dimensional empirical analysis for contour maps.Report of the Port and Harbour Research Institute 23(2): 28–47. (in Japanese)

    Google Scholar 

  • MaCave, I. N., 1970. Deposition of fine-grained suspended sediments from tidal currents.J. Geophys. Res. 75 (21): 4151–4159.

    Article  Google Scholar 

  • Postma, H., 1961. Transport and accumulation of suspended matter in the Dutch Wadden Sea.Neth. J. Sea Res. 1(1/2): 148–190.

    Article  Google Scholar 

  • Reineck, H. E., 1967. Layered sediments of tidal flats, beaches, and shelf bottoms of the North Sea.In: Holocene Tidal Sedimentation G. de V. Klein (ed.), Dowden, Hutchinson & Ross Inc. Pennsylvania, USA, pp. 64–79.

    Google Scholar 

  • Shenci, S. S. S., Murty, C. S. and Veerarra, M., 1987. Monsoon-induced seasonal variability of sheltered versus exposed beaches along the west coast of India.Mar. Geol. 76: 117–130.

    Article  Google Scholar 

  • Van Straaten, L. M. J. U. and Kuenen, Ph. H., 1957. Accumulation of fine grained sediments in the Dutch Wadden Sea.Geol. Mijnb. 19: 329–354.

    Google Scholar 

  • Wang B. C. and Eisma, D., 1988. Mudflat deposition along the Wenzhou coastal plain in southern Zhejiang, China.In: Tide-influenced Sedimentary Environments and Facies, P. L. de Boer et al. (ed.), D. Reidel Publishing Company, Holland, pp. 265–274.

    Google Scholar 

  • Wang B. C. and Eisma, D., 1990. Supply and deposition of sediment along the north bank of Hangzhou Bay, China.Neth. J. Sea. Res. 25(3): 377–390.

    Article  Google Scholar 

  • Winant, C. D., Inman, D. L. and Nordstorm, C. E., 1975. Description of seasonal beach changes using empirical eigenfunctions.J. Geophys. Res. 80: 1979–1986.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Keqi, Z., Qingxiang, J. & Baocan, W. Seasonal changes of the tidal flat from Jinhuigang to Caojing along the north bank of Hangzhou Bay. Chin. J. Ocean. Limnol. 11, 321–332 (1993). https://doi.org/10.1007/BF02850637

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02850637

Key words

Navigation