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Description of the Kuroshio meander in 1975–1980: the large meander
752
A, Physical Oceanography
Occidentale, Lab. d'Oceanogr. Phys., 6 avenue Victor Le Gorgeu, 29283 Brest Cedex, France. (mwf) 82:5919 Nishida, Hideo, Haruo Ishii, Hideo Nitani and Shigeki Kuramoto, 1982. Description of the Kuroshio meander in 1975--1980: the large meander. I-IV. Special number. Data Rept hydrogr. Obsns, Tokyo, 17:181-256; 4 papers. Four papers treat various aspects of the large Kuroshio meander established off Japan's southern coast in August 1975; the meander was monitored bimonthly until its disappearance early in 1980. A small eastward-moving meander along the coast preceded large meander development, as it had in 1953 and 1959. Three times during the 5-year period, the associated cold eddy separated producing a cold current ring south of the Kuroshio; twice this coalesced with newly-generated small meanders off Kyushu, returning the Kuroshio meander to typical "A-type,' but in August 1979 no small meander was generated and the Kuroshio meander entered the disappearing stage. The cold eddy's deep layer (1000--2500 m) generally experienced slow temperature increase, but observed intermittent decreases may contribute to cold eddy/meander longevity; other layers' temperature variations were not in phase with those of the deep layer. A conspicuous deep temperature increase accompanied the meander's disappearing stage. While stationary, the large meander extends deeper than the Izu Ridge sill and current pattern is coherent throughout the water column. In the disappearing stage, deep current movement did not correspond to the surface meander, suggesting cessation may be due to Taylor column modification through weakened deep flow. It was reconfirmed that the large meander may be described as a finite amplitude stationary barotropic Rossby wave. Maritime Safety Agency, Tokyo, Japan. (sir) 82:5920 Sujino, Gizo, Fumiaki Kuwakino, Minoru Odamaki, Tomotaka Ito and Takeshi Kumagai, 1982. Tides and tidal streams in the Straits of Malacca and Singapore. Special number. Data Rept hydrogr. Obsns, Tokyo, 17:257-287. (In Japanese, English abstract.) Joint studies from 1977-79 by Japan, Indonesia, Malaysia and Singapore identified semi-diurnal tides in the Malacca Strait and diurnal tides in the Singapore Strait but no consistent correspondence between atmospheric pressure variations and seasonal changes in mean sea level. Maritime Safety Agency, Tokyo, Japan. (isz)
OLR (1982) 29 ( 12l
82:5921 Suzuki, Hiroshi, Akira Hirayama, Taiji Kikuchi, Isao Goto and Teruo Sameshima, 1982. The bottom current system of Tomioka Bay, West Kyushu [Japan]. Publs Amakusa mar. biol. Lab., Kyushu Univ., 6(2):95-104. Amakusa Mar. Biol. Lab., Kyushu Univ., Tomioka, Reihoku-cho, Amakusa, Kumamoto 863-25, Japan.
A l l 0 . Water masses and fronts 82:5922 Gardner, G.A., 1982. Biological and hydrographical evidence for Pacific Equatorial Water on the continental shelf north of Vancouver Island, British Columbia. Can. J. bTsh. aquat. Sci., 39(5):660-667. Water with the general temperature/salinity characteristics of the California Undercurrent was found on the shelf in April and November 1977. Equatorial Water formed ~30% of this deep-water mass, with Pacific Subarctic Water making up the remainder; six normally subtropical zooplankton species were identified. A proportional increase in equatorial water and a concomitant extension of the distribution limits of oceanic zooplankters imply an intrusion of deep water onto the shelf during the period between the two cruises. Dept. of Biol., Memorial Univ. of Newfoundland, St. John's, Nfld., AIB 3X9. Canada.
A120. Convergences, divergences, upwelling 82:5923 Barton, E.D., P. Hughes and J.H. Simpson, 1982. Vertical shear observed at contrasting sites over the continental slope off NW Africa. Oceanologica Acta, 5(2):169-178. Two 12-hour time series from Protas and STD probes at a site 130 km offshore showed a preponderance of North Atlantic Central Water carried equatorward, and at a site 70 km offshore, a strong influence of South Atlantic Central Water carried poleward. Values of square shear and square BruntVaisala frequency were correlated offshore where internal waves contributed to the shear, but not at the slope, where turbulent conditions appeared more important. Dept. of Oceanogr., Univ. of Liverpool, L69 3BX, UK. (mwf)
A, Physical Oceanography
Occidentale, Lab. d'Oceanogr. Phys., 6 avenue Victor Le Gorgeu, 29283 Brest Cedex, France. (mwf) 82:5919 Nishida, Hideo, Haruo Ishii, Hideo Nitani and Shigeki Kuramoto, 1982. Description of the Kuroshio meander in 1975--1980: the large meander. I-IV. Special number. Data Rept hydrogr. Obsns, Tokyo, 17:181-256; 4 papers. Four papers treat various aspects of the large Kuroshio meander established off Japan's southern coast in August 1975; the meander was monitored bimonthly until its disappearance early in 1980. A small eastward-moving meander along the coast preceded large meander development, as it had in 1953 and 1959. Three times during the 5-year period, the associated cold eddy separated producing a cold current ring south of the Kuroshio; twice this coalesced with newly-generated small meanders off Kyushu, returning the Kuroshio meander to typical "A-type,' but in August 1979 no small meander was generated and the Kuroshio meander entered the disappearing stage. The cold eddy's deep layer (1000--2500 m) generally experienced slow temperature increase, but observed intermittent decreases may contribute to cold eddy/meander longevity; other layers' temperature variations were not in phase with those of the deep layer. A conspicuous deep temperature increase accompanied the meander's disappearing stage. While stationary, the large meander extends deeper than the Izu Ridge sill and current pattern is coherent throughout the water column. In the disappearing stage, deep current movement did not correspond to the surface meander, suggesting cessation may be due to Taylor column modification through weakened deep flow. It was reconfirmed that the large meander may be described as a finite amplitude stationary barotropic Rossby wave. Maritime Safety Agency, Tokyo, Japan. (sir) 82:5920 Sujino, Gizo, Fumiaki Kuwakino, Minoru Odamaki, Tomotaka Ito and Takeshi Kumagai, 1982. Tides and tidal streams in the Straits of Malacca and Singapore. Special number. Data Rept hydrogr. Obsns, Tokyo, 17:257-287. (In Japanese, English abstract.) Joint studies from 1977-79 by Japan, Indonesia, Malaysia and Singapore identified semi-diurnal tides in the Malacca Strait and diurnal tides in the Singapore Strait but no consistent correspondence between atmospheric pressure variations and seasonal changes in mean sea level. Maritime Safety Agency, Tokyo, Japan. (isz)
OLR (1982) 29 ( 12l
82:5921 Suzuki, Hiroshi, Akira Hirayama, Taiji Kikuchi, Isao Goto and Teruo Sameshima, 1982. The bottom current system of Tomioka Bay, West Kyushu [Japan]. Publs Amakusa mar. biol. Lab., Kyushu Univ., 6(2):95-104. Amakusa Mar. Biol. Lab., Kyushu Univ., Tomioka, Reihoku-cho, Amakusa, Kumamoto 863-25, Japan.
A l l 0 . Water masses and fronts 82:5922 Gardner, G.A., 1982. Biological and hydrographical evidence for Pacific Equatorial Water on the continental shelf north of Vancouver Island, British Columbia. Can. J. bTsh. aquat. Sci., 39(5):660-667. Water with the general temperature/salinity characteristics of the California Undercurrent was found on the shelf in April and November 1977. Equatorial Water formed ~30% of this deep-water mass, with Pacific Subarctic Water making up the remainder; six normally subtropical zooplankton species were identified. A proportional increase in equatorial water and a concomitant extension of the distribution limits of oceanic zooplankters imply an intrusion of deep water onto the shelf during the period between the two cruises. Dept. of Biol., Memorial Univ. of Newfoundland, St. John's, Nfld., AIB 3X9. Canada.
A120. Convergences, divergences, upwelling 82:5923 Barton, E.D., P. Hughes and J.H. Simpson, 1982. Vertical shear observed at contrasting sites over the continental slope off NW Africa. Oceanologica Acta, 5(2):169-178. Two 12-hour time series from Protas and STD probes at a site 130 km offshore showed a preponderance of North Atlantic Central Water carried equatorward, and at a site 70 km offshore, a strong influence of South Atlantic Central Water carried poleward. Values of square shear and square BruntVaisala frequency were correlated offshore where internal waves contributed to the shear, but not at the slope, where turbulent conditions appeared more important. Dept. of Oceanogr., Univ. of Liverpool, L69 3BX, UK. (mwf)