Abstract
Low frequency (LF) current (period >25 hour) variation at 5 stations in Jiaozhou Bay, Shijiousuo, and the central part of the Yellow Sea were studied by analyzing the observed long-period current data series in the study area.
-
1)
There are obvious periods of 3 and 5 days in the LF current spectra. The energy spectral value of LF current of a 5 day period is remarkably larger than that of a 3 day period. These periods reflect the correlations between the LF current variation and the LF water level variation.
-
2)
The fact that the 15-day period in the LF current spectra corresponds to the semi-monthly celestial tide period indicates that the tide-induced residual current is an important and most evident LF current component in the bay.
-
3)
The LF current spectral energy density in the northward direction is much larger than that in the eastward direction. This shows the frequency and strength of the wind field in the northward direction are evidently larger than that in the eastward direction.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Shiro Imawaki, Keisuke Taira and Toshihiko Teramoto, 1984. Mesoscale current flucturations observed in the deep western North Pacific.J. Ocean. Soci. of Jap. 40: 30–45.
Halpern, D., 1979. Observations of upper ocean current at DOMES sites A, B and C in the tropical central North Pacific Ocean during 1975 and 1976.In: Marine Geology and Oceanography of the Pacific Maganese Nodule Province (ed. by J. L. Bischoff and B. Z. Piper), Plenum Press, New York, pp. 43–82.
Hayes, S. P., 1979. Benthic current observation at DOMES sites A, B and C in the tropical North Pacific Ocean.In: Marine Geology and Oceanography of the Pacific Manganese Nodule Province (ed. by J. L. Bischoff and B. Z. Piper), Plenum Press, New York, pp. 83–112.
Taft, B. A., S. R. Ramp, J. G. Dworski and G. Holloway, 1981. Measurements of deep current in the central North Pacific.J. Geophys. Res. 86: 1955–1968.
Tee, K. T., 1976. Tide-induced residual current, a 2-D nonlinear numerical tide model.J. Mar. Res. 34 (4): 603–623.
Li Kunping and Lu Ming, 1984. The preliminary study of low-frequency water level energy along the coasts of the Huanghai and Bohai Seas.J. Ocean. of Huanghai & Bohai Sea 2(2): 6–12.
Guang Bingxiang and Chen Shangji, 1964. The sea current system in coastal waters of China.In: Comprehensive Oceanographic Report of China, Science and Technical Committee of China5: 6–10.
Shi Maochong, 1983. The observation of bottom current in coastal waters.Oceanic and Seas Investigations 2: 44–47.
Chen Zongyong, 1980. Tide, Science Press, Beijing pp. 196–198.
Gonella, J., 1972. Rotary-component method for analysing meteorological and oceanographical vector time series.Deep Sea Res. 19(12): 833–846.
Gao Zhenhua and Qu Mianxu. 1984. The Natural Environment in Jiaozhou Bay, Ocean Publishing House, Beijing pp. 9–10.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Maochong, S., Jinping, Z., Songhe, Z. et al. Analysis of Yellow Sea low-frequency current variation. Chin. J. Ocean. Limnol. 8, 306–318 (1990). https://doi.org/10.1007/BF02849676
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02849676