Abstract
Hydrographic measurements by CTD were made in the western-central Equatorial Pacific (160°W–147°E) during the Japanese Pacific Climate Study cruise in January–February 1991. InT-S diagram, three water masses are seen in the layer of σθ kg/m3: salinity water corresponding to the Tropical Water of eastern South Pacific origin, less saline water in the North Pacific, and water with salinity between the above two, found on the equator. In three meridional sections (160°W–160°E), the Tropical Water of eastern South Pacific origin extends further equatorward than the climatological data of Levitus (1982).
References
Levitus, S. (1982): Climatological atlas of the world ocean.NOAA Prof. Paper,13 173 pp.
Shuto, K. (1989): Seasonal mean distribution of sea properties in the Pacific.Tech. Rep. Meteorol. Res. Inst.,25, 472 pp.
Sugimura, Y., T. Fujitani, S. Haginoya, H. Mouri, Y. Suzuki and T. Midorikawa (1991): Precise observation on atmospheric structure and fluxes.Japanese Pacific Climate Studies Annual Report, 23–24 (in Japanese).
Tsuchiya, M. (1968): Upper waters of the intertropical Pacific Ocean.Johns Hopkins Oceanographic Studies,4, 50 pp.
Tsuchiya, M. (1975): Subsurface countercurrent in the eastern equatorial Pacific Ocean.J. Mar. Res.,33, Supplement, 145–175.
Wyrtki K. and B. Kilonsky (1984): Mean water and current structure during the Hawaii-to-Tahiti Shuttle Experiment.J. Phys. Oceanogr.,14, 242–254.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Ando, K., Ichiye, T. & Muneyama, K. Water masses and hydrography in the tropical Pacific during Japanese Pacific Climate Study '91 cruise. J Oceanogr 50, 239–245 (1994). https://doi.org/10.1007/BF02253482
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02253482