Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Yutaka Yoshikawa"'
Autor:
Yutaka Yoshikawa, Yusuke Ushijima
Publikováno v:
Ocean Dynamics. 70:505-512
Wind-induced mixing forms the surface mixed layer (ML) above the stratified interior oceans. The ML depth (MLD), a key quantity for several upper ocean processes such as the air-sea interaction and primary production of phytoplankton biomass, is ofte
Publikováno v:
Biological Trace Element Research. 192:206-213
The risk of serious complication gradually increases as diabetes mellitus (DM) progresses. Thus, strategies for the prevention and delay of symptom progression are urgently needed. Previously, we synthesized zinc (Zn) complexes estimated to have a hi
Autor:
Goh Onitsuka, Katsunori Kimoto, Kei Yufu, Takeshi Matsuno, K. Abe, Takahisa Tokunaga, Yutaka Yoshikawa, Tomoyuki Shikata
Publikováno v:
Journal of Oceanography. 74:351-365
The temporal evolution of a thin phytoplankton layer was observed by field measurements using a research vessel and mooring instruments in the Yatsushiro Sea, a semi-enclosed narrow embayment in Japan, in early August 2013. The subsurface chlorophyll
Publikováno v:
Nature Geoscience. 10:598-603
The devastating tsunami triggered by the Tōhoku-Oki earthquake of 11 March 2011 caused a crisis at the Fukushima Daiichi nuclear power station where it overtopped the seawall defences. On retreating, the tsunami carried loose debris and wreckage sea
Publikováno v:
Journal of Oceanography. 72:299-311
Three high-frequency (HF) ocean radars were deployed around the Soya (La Perouse) Strait in 2003 to monitor the Soya Warm Current (SWC). Surface current observed by the HF radars contains a wind drift component, which must be removed in order to esti
Autor:
Yutaka Yoshikawa, Yoshihiko Ide
Publikováno v:
Journal of Oceanography. 72:263-280
The diurnal cycle of surface heat flux in summer fair weather conditions at mid- or low latitudes is known to affect wind-driven flow. The present study investigates diurnal cycle effects in various wind and weather conditions, with variable heating
Publikováno v:
Journal of Oceanography. 70:81-90
The terms of the steady-state turbulent kinetic energy (TKE) budget in the oceanic convective boundary layer (CBL) are estimated by use of microstructure data obtained over the continental shelf of the East China Sea. The dissipation term is calculat
Autor:
Tsuneo Honjo, K. Abe, Tomoyuki Shikata, Kei Yufu, Kazuyoshi Miyamura, Saho Kitatsuji, Yutaka Yoshikawa, Goh Onitsuka
Publikováno v:
Marine Biology. 164
Diurnal vertical migration of the red-tide dinoflagellate Karenia mikimotoi and environmental conditions were measured in Hiroshima Bay and the Yatsushiro Sea in July of 2012 and 2015, respectively. The uppermost daytime depths for K. mikimotoi were
Autor:
Yutaka Yoshikawa, Chang Wei Lee, Akihiko Morimoto, Yoshihiko Ide, Wen Shan Chiang, Satoshi Fujii, Tomoharu Senju, Moeto Kyushima, Jian Wu Lai, Kaoru Ichikawa, Kei Yufu, En Yu Liang, Shigeo Sugitani, Wen Chang Yang, Cho-Teng Liu
Publikováno v:
Ocean Science Journal. 48:141-148
Japanese and Taiwanese institutes have collaborated to obtain ocean radar data with significantly increased coverage in the upstream Kuroshio region. An international joint survey was conducted in June 2012, in which intensive in situ observations we
Autor:
Yutaka Yoshikawa
Publikováno v:
Journal of Oceanography. 68:971-983
Numerical experiments were performed to investigate the effects of eddies generated in deep water formation processes on an abyssal circulation in a closed bowl-shaped basin. Two sets of experiments were performed. One set was eddy-restricted experim