Abstract
Current records obtained in the inshore region along the Fukushima coast are analyzed. The existence of periodical current fluctuations whose period is about 100 hours and whose amplitude is as large as 15–25cm s−1 is recognized. Auto-spectral analyses are made also for sea level, atmospheric pressure and wind records. Each spectrum has significant peaks at the similar period to the current spectrum. The wind spectrum has a broad peak compared with the current. The periodical current fluctuations propagate southward with speed of 3–5 km h−1. These propagation speeds seem to correspond to those of the second-and third-mode shelf waves.
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References
Akaike, H. andT. Nakagawa (1972): Statistical analysis and control of dynamic systems. Saiensusha; Tokyo, 189 pp. (In Japanese).
An, H.S. (1980): Observational evidence of the upwelling off Cape Shioyazaki in Fukushima Prefecture, Japan. J. Oceanogr. Soc. Japan,36, 85–95.
Brooks, D.A. (1978): Subtidal sea level fluctuations and their relation to atmospheric forcing along the Carolina coast. J. Phys. Oceanogr.,8, 481–493.
Brooks, D. A. andC. N. K. Mooers (1977): Windforced continental shelf waves in the Florida Current. J. Geophys. Res.,82, 2569–2576.
Cutchin, D. L. andR. L. Smith (1973): Continental shelf waves: Low frequency variations in sea level and currents over the Oregon continental shelf. J. Phys. Oceanogr.,3, 73–82.
Hamon, B. V. (1962): The spectrums of mean sea level at Sydney, Coff's Harbour, and Lord Howe Island. J. Geophys. Res.,67, 5147–5155, (Correction, J. Geophys. Res.,68, 4635: 1963).
Hamon, B. V. (1966): Continental shelf waves and the effects of atmospheric pressure and wind stress on sea level. J. Geophys. Res.,71, 2883–2893.
Huyer, A., B. H. Hickey, J. D. Smith, R. L. Smith andR. D. Pillsbury (1975): Alongshore Coherence a low frequencies in currents observed over the continental shelf off Oregon and Washington. J. Geophys. Res.,80, 3495–3505.
Ishii, I. (1975): Oceanographic condition on the coastal sea of Fukushima Prefecture—I, Distinction of coastal sea. Bull. Fukushima Pref. Fish. Exp. Stn., (3), 11–16. (in Japanese)
Isozaki, I. (1969): An investigation on the variations of sea level due to meteorological disturbances on the coast of Japanese Islands, III. J. Oceanogr. Soc. Japan,25, 91–102.
Kawai, H. (1972): Hydrography of the Kuroshio extension.In, Kuroshio—Its physical aspects—, ed. byH. Stommel andK. Yoshida, Univ. of Tokyo Press, Tokyo, pp. 235–352.
Kubota, M. (MS): Continental shelf waves off the Fukushima coast, Part II: Theory of the generation (submitted to J. Oceanogr. Soc. Japan).
Kubota, M., K. Nakata andY. Nakamura (1978): Characteristics of low-frequency current fluctuations off Fukushima. Kaiyô Kagaku (Marine Science),10, 499–508. (in Japanese)
Kundu, P. K. andJ. S. Allen (1976): Some three-dimensional characteristics of low-frequency current fluctuations near the Oregon coast. J. Phys. Oceanogr.,6, 181–199.
Kundu, P. K., J. S. Allen andR. L. Smith (1975): Modal decomposition of the velocity field near the Oregon coast. J. Phys. Oceanogr.,5, 683–704.
Mooers, C. N. K. andR. L. Smith (1968): Continental shelf waves off Oregon. J. Geophys. Res.,73, 549–557.
Mysak, L. A. andB. V. Hamon (1969): Low-frequency sea level behavior and continental shelf waves off North Carolina. J. Geophys. Res.,74, 1397–1405.
Robinson, A. R. (1964): Continental shelf waves and the response of the sea level to weather systems. J. Geophys. Res.,69, 367–368.
Shoji, D. (1961): On the variations of the daily mean sea levels along the Japanese Islands. J. Oceanogr. Soc. Japan,17, 21–32.
Smith, R. L. (1974): A description of current, wind, and sea level variations during coastal upwelling off the Oregon coast, July–August 1972. J. Geophys. Res.,79, 435–443.
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Kubota, M., Nakata, K. & Nakamura, Y. Continental shelf waves off the fukushima coast Part I: Observations. Journal of the Oceanographical Society of Japan 37, 267–278 (1981). https://doi.org/10.1007/BF02070581
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DOI: https://doi.org/10.1007/BF02070581