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Onitsuka, Go*; Yanagi, Tetsuo*; Uno, Itsushi*; Kawamura, Hideyuki; Yoon, J.-H.*; Yamanaka, Yasuhiro*
Engan Kaiyo Kenkyu, 50(1), p.45 - 51, 2012/08
A seasonal variation of phytoplankton concentration is remarkable in the surface layer of the Japan Sea, because of a seasonal variation of solar radiation and nutrient. While, it is suggested that atmospheric perturbation such as typhoon effects a lower level ecosystem in the surface layer. An effect of atmospheric perturbation on the lower level ecosystem was estimated by means of an ocean general circulation model and a lower level ecosystem model in this study. Results of numerical experiments suggested that the atmospheric perturbation enhances a primary production in the Japan Sea.
nucleus 
CrOnishi, Takeo*; Gelberg, A.*; Sakurai, Hiroyoshi*; Yoneda, Kenichiro*; Aoi, Nori*; Imai, Nobuaki*; Baba, Hidetada*; Von Brentano, P.*; Fukuda, Naoki*; Ichikawa, Yuichi*; et al.
Physical Review C, 72(2), p.024308_1 - 024308_7, 2005/08
Times Cited Count：21 Percentile：77.65(Physics, Nuclear)no abstracts in English
Tanaka, Tadao; Yamaguchi, Tetsuji; Iida, Yoshihisa; Kimura, Yuichiro; Taki, Hiroshi; Fujiwara, Takeshi; Ueda, Masato*; Mukai, Masayuki; Yamada, Fumika; Mizuno, Tsuyoshi; et al.
no journal, ,
no abstracts in English
Onitsuka, Go*; Yanagi, Tetsuo*; Uno, Itsushi*; Kawamura, Hideyuki; Yoon, J.-H.*; Yamanaka, Yasuhiro*
no journal, ,
It is suggested that seasonal variation of phytoplankton concentration in the surface layer is remarkable in the Japan Sea and it is additionally reported that increase of phytoplankton concentration is found due to synoptic scale meteorological perturbation. In this study, effect of synoptic scale meteorological perturbation and deposition of nitrogen from atmosphere on primary production in the Japan Sea is estimated in numerical experiments. Short period oscillation of primary production due to synoptic scale meteorological perturbation is dominant between April and November in the numerical experiments. It is suggested that the primary production in the Japan Sea is supported by supply of nutrient due to synoptic scale meteorological perturbation by about 5% and that from atmosphere by about 2%, respectively.
