PROFILE

    Sachihiko Itoh, Ph.D.
    Associate Professor
    Atmosphere and Ocean Research Institute,
    The University of Tokyo

CURRICULUM VITAE

  • Associate Professor, Atmosphere and Ocean Research Institute,
    The University of Tokyo, 2011 May–
  • Assistant Professor, Atmosphere and Ocean Research Institute,
    The University of Tokyo, 2010 Apr – 2011 May
  • Assistant Professor, Ocean Research Institute, The University of Tokyo,
    2002 June – 2010 Mar
  • Ph.D. (Science), The University of Tokyo, 2004
  • M. Sc. Earth and Planetary Sciences, The University of Tokyo, 2000
  • B. Sc. Earth and Planetary Sciences, The University of Tokyo, 1998

CURRENT RESEARCH INTEREST

PUBLICATIONS (REFEREED)

  • Itoh, S. and D. L. Rudnick, Fine-scale variability of isopycnal salinity in the CaliforniaCurrent System, J. Geophys. Res. Oceans, 122, doi:10.1002/2017JC013080. [Open Access]

  • Itoh, S., A. Kasai, A. Takeshige, K.Zenimoto, S.Kimura, K.W. Suzuki, Y. Miyake, T. Funahashi, Y. Yamashita and Y. Watanabe: Circulation and haline structure of a microtidal bay in the Sea of Japan influenced by the winter monsoon and the Tsushima Warm Current, J. Geophys. Res., J. Geophys. Res. Oceans,121, 6331–6350, doi:10.1002/2015JC011441. [Open Access]
  • Ishizu, M, S. Itoh, K. Tanaka and K.Komatsu: Influence of the Oyashio Current and Tsugaru Warm Current on the circulation and water properties of Otsuchi Bay, Japan, J. Oceanogr., 73, 115-131, 2017. [Abstract]
  • Tanaka,K., K. Komatsu, S. Itoh, D.Yanagimoto, M.Ishizu, H.Hasumi, T.T. Sakamoto, S. Urakawa, Y. Michida,Baroclinic circulation and its high frequency variability in Otsuchi Bay on the Sanriku ria coast, Japan, J. Oceanogr.,73, 25-38, 2017.[Abstract]
  • Sakamoto, T. T. , L. S. Urakawa, H. Hasumi, M. Ishizu, S. Itoh T. Komatsu and K. Tanaka, Numerical simulation of Pacific water intrusions into Otsuchi Bay, northeast of Japan, with a nested-grid OGCM, J. Oceanogr., 73, 39-54, 2017.[Abstract]

  • T. Shiozaki, S. Takeda, S. Itoh, T. Kodama, X. Liu, F. Hashihama, and K. Furuya, Why is Trichodesmium abundant in the Kuroshio? Biogeoscience, 12, 6931–6943., doi: doi:10.5194/bg-12-6931-2015. [Abstract]

  • Y. Miyake, S. Kimura, S. Itoh, S. Chow, K. Murakami, S. Katayama, A. Takeshige and H. Nakata: Roles of vertical behavior in the open-ocean migration of teleplanic larvae: a modeling approach to the larval transport of Japanese spiny lobster, Marine Ecology-Progress Series, 539, 93-109, doi:10.3354/meps11499, 2015[Abstract]

  • Itoh, S., H. Kaneko, M. Ishizu, D. Yanagimoto, T. Okunishi, H. Nishigakia and K. Tanaka: Fine-scale structure and mixing across the front between the Tsugaru Warm and Oyashio Currents in summer along the Sanriku Coast, east of Japan, J. Oceanogr., 72, 23-37, doi: 10.1007/s10872-015-0320-6, 2016[PDF]
  • Itoh, S., I. Yasuda, H. Saito, A. Tsuda and K. Komatsu: Mixed layer depth and chlorophyll a: Profiling float observations in the Kuroshio-Oyashio Extension region, J. Mar. Sys., 151, 1-14, doi:10.1016/j.jmarsys.2015.06.004,2015 [Open Access]

  • Kaneko, H., S. Itoh, S. Kouketsu, T. Okunishi, S. Hosoda, and T. Suga: Evolution and modulation of a poleward-propagating anticyclonic eddy along the Japan and Kuril-Kamchatka trenches, J. Geophys. Res., doi: 10.1002/2014JC010693,2015 [PDF]

  • Kouketsu, S., H. Kaneko, T.Okunishi, K. Sasaoka, S.Itoh, R.Inoue, H. Ueno: Mesoscale eddy effects on temporal variability of surface chlorophyll a in the Kuroshio Extension, J. Oceanogr., 2015

  • J. Boldt, R. Martone, J. Samhouri, R. I. Perry, S. Itoh, I-K. Chung, M. Takahashi, and N. Yoshie: Developing ecosystem indicators for responses to multiple stressors, Oceanography, 27 (4) , 116-133, 2014 [Abstract]

  • Oka E., K. Uehara, T. Nakano, T. Suga, D. Yanagimoto, S. Kouketsu, S. Itoh, S. Katsura, and L. D. Talley: Synoptic observation of Central Mode Water in its formation region in spring 2003. J. Oceanogr., 70, 521-534, 2014 [Abstract]

  • Belkin, I. M., Hunt, G. L., Hazen, E. L., Zamon, J. E., Schick, R. S., Prieto, R., Brodziak, J., Teo, S. L., Thorne, L., Bailey, H., Itoh, S., Munk, P., Musyl, M. K., Willis, J. K., Zhang, W.: Fronts, fish, and predators. Deep-sea Res. Part II, 107, 1-2, doi: 10.1016/J.Dsr2.2014.07.009, 2014 [Abstract]

  • Itoh, S, Y. Tanaka, S. Osafune, I. Yasuda, M. Yagi, H Kaneko, S. Konda, J. Nishioka and Y. N. Volkov: Direct breaking of large-amplitude internal waves in the Urup Strait. Prog. Oceanogr, 126, 109-120, doi: 10.1016/j.pocean.2014.04.014., 2014 [Abstract] [ItohEtAl2014PiO.pdf]

  • Itoh, S., I. Yasuda, H. Ueno, T. Suga and S. Kakehi: Regeneration of a warm anticyclonic ring by cold water masses within the western subarctic gyre of the North Pacific, J. Oceanogr., 70, 211-223, doi: 10.1007/s10872-014-0225-9, 2014 [Abstract][ItohEtAl2014JOOC.pdf]

  • Nishikawa, H., I. Yasuda, S. Itoh, K. Komatsu, H. Sasaki, Y. Sasai, and Y. Oozeki: Transport and survival of Japanese sardine (Sardinops melanostictus) eggs and larvae via particle-tracking experiments. Fish Oceanogr, 22, 509-522, 2013 [Abstract]

  • Kaneko, H., I. Yasuda, K. Komatsu, and S. Itoh: Observations of vertical turbulent nitrate flux across the Kuroshio. Geophys Res Lett, 40, 3123-3127, 2013

  • Ueno, H., I. Yasuda, S. Itoh, H. Onishi, Y. Hiroe, T. Suga, and E. Oka: Modification of a Kenai eddy along the Alaskan Stream. J Geophys Res, 117, doi:10.1029/2011JC007506, 2012.

  • Kaneko, H., I. Yasuda, K. Komatsu and S. Itoh: Observations of the structure of turbulent mixing across the Kuroshio, Geophys. Res. Lett., 39, doi: 10.1029/2012GL052419, 2012 [Abstract]

  • Nishikawa, H., I. Yasuda and S. Itoh: Impact of winter-to-spring environmental variability along the Kuroshio jet on the recruitment of Japanese sardine (Sardinops melanostictus), Fisheries Oceanography, 20, 570-582, 2011 [Abstract]

  • Itoh, S., I. Yasuda, M. Yagi, S. Osafune, H. Kaneko, J. Nishioka, T. Nakatsuka, and Y. N. Volkov: Strong vertical mixing in the Urup Strait, Geoph. Res. Lett., 38, L16607, doi:10.1029/2011GL048507, 2011 [Abstract][Itoh_et_al_2011_GRL.pdf]

  • Itoh, S., Y. Shimizu, S-i. Ito, and I. Yasuda: Evolution and decay of a warm-core ring within the western subarctic gyre of the North Pacific, as observed by profiling floats, J. Oceanogr., 67, doi: 10.1007/s10872-011-0027-2, 2011 [Abstract][Itoh_et_al_2011_JO.pdf]

  • Itoh, S., T. Saruwatari, H. Nishikawa, I. Yasuda, K. Komatsu, A. Tsuda, T. Setou, and M. Shimizu: Environmental variability and growth histories of larval Japanese sardine (Sardinops melanostictus) and Japanese anchovy (Engraulis japonicus) near the frontal area of the Kuroshio, Fish. Oceanogr., 20, 114-124, 2011 [Abstract] [Itoh_et_al_2011_FOG.pdf]

  • Itoh, S. and I. Yasuda: Water mass structure of warm and cold anticyclonic eddies in the western boundary region of the subarctic North Pacific, J. Phys. Oceanogr., 40, 2624-2642, 2010 [Abstract] [Itoh_and_Yasuda_2010_JPOb.pdf].

  • Ooki, A., A. Tsuda, S. Kameyama, S. Takeda, S. Itoh, T. Suga, H. Tazoe, A. Okubo, and Y. Yokouchi: Methyl halides in surface seawater and marine boundary layer of the Northwest Pacific, J. Geophys. Res., 115, C10113, doi:10.1029/2009JC005703, 2010 [Abstract].

  • Itoh, S., I. Yasuda, T. Nakatsuka, J. Nishioka, and Y. N. Volkov: Fine- and microstructure observations in the Urup Strait, Kuril Islands, during August of 2006, J. Geophys. Res., 115, C08004, doi:10.1029/2009JC005629, 2010 [Abstract] [Itoh_et_al_2010_JGR.pdf].

  • Itoh, S. and I. Yasuda: Characteristics of mesoscale eddies in the Kuroshio-Oyashio Extension region detected from the distribution of the sea surface height anomaly, J. Phys. Oceanogr., 40, 1018-1034, 2010 [Abstract] [Itoh_and_Yasuda_2010_JPOa.pdf]

  • Itoh, S., I. Yasuda, H,. Nishikawa, H. Sasaki, and Y. Sasai: Transport and environmental temperature variability of eggs and larvae of the Japanese anchovy (Engraulis japonicus) and Japanese sardine (Sardinops melanostictus) in the western North Pacific estimated via numerical particle-tracking experiments, Fish. Oceanogr. 18, 118-133, 2009 [Abstract] [Itoh_et_al_2009_FOG.pdf]

  • Itoh, S. and T. Sugimoto: Current variability of the Kuroshio near the separation point from the western boundary, J. Geophys. Res., 113, C11020, doi:10.1029/2007JC004682, 2008 [Abstract] [Itoh_and_Sugimoto_2008_JGR.pdf]

  • Itoh, S. and S. Kimura: Transport and survival of larvae of pelagic fishes in Kuroshio system region estimated with Lagrangian drifters, Fish. Sci., 73, 1295-1308, 2007 [Abstract] [Itoh_and_Kimura_2007_FS.pdf]

  • Nakamura, Y. Noguchi, T., Tsuji, T., Itoh, S., Niino, H., and Matsuoka, T.: Simultaneous seismic reflection and physical oceanographic observations of oceanic fine structure in the Kuroshio extension front, Geophs. Res. Lett., 33, L23605, doi: 10.1029/2006GL027437, 2006

  • Itoh, S. and T. Sugimoto: Direct current measurement off Sanriku east of Japan, J. Oceanogr., 58, 877-882, 2002 [Abstract] [Itoh_and_Sugimoto_2002_JOb.pdf]

  • Itoh, S. and T. Sugimoto: Behavior of warm-core rings in a double-gyre wind-driven ocean circulation model, J. Oceanogr., 58, 651-660, 2002 [Abstract] [Itoh_and_Sugimoto_2002_JOa.pdf]

  • Tameishi, H., K. Saito, Y. Nakasono, K. Takahashi, S. Itoh, S. Kimura and T. Sugimoto, Proc. 70th anniversary international commemorative siymposium of the Japanese Society of Fisheries Science, 68, 1775-1780, 2002

  • Itoh, S. and T. Sugimoto: Numerical experiments on the movement of a warm-core ring with the bottom slope of a western boundary, J. Geophys. Res., 106, 26,851-26,862, 2001 [Abstract] [Itoh_and_Sugimoto_2001_JGR.pdf]

  • Itoh, S. and T. Sugimoto: Mechanism of long-term movement of warm-core rings in the Tohoku area and its impact on fishing ground formation, Bull. Jpn. Soc. Fish. Oceanogr., 65, 15-21, 2001

PRESENTATION FILES (2008–)

  • Itoh, S. et al.: Internal Tide Chimney, JpGU-AGU Joint Meeting 2017, May 2017, Makuhari Messe, Chiba [PDF]

  • Itoh, S. et al.: Mixed layer depth and chlorophyll a: profiling float observations in the Kuroshio-Oyashio Extension region, Ocean Sciences Meeting 2016, New Orleans [PDF]
  • Itoh, S. et al:Regeneration of anticylone: from warm to cold, AORI-UH Joint Symposium, Feb. 2015, Kashiwa, Japan[PDF]
  • Itoh, S. et al:Regeneration of anticylone: from warm to cold, PICES annual meeting 2014, Oct. 2014, Yoesu, Korea [PDF]

  • Itoh, S. et al:Direct breaking of large-amplitude internal waves in the Urup Strait, Kuril Islands, Ocean Sciences Meeting 2014, Feb. 2014, Honolulu, US [PDF]

  • Itoh, S. et al.: Strong vertical mixing in the Urup Strait, Kuril Islands. PICES annual meeting, Oct. 2012, Hiroshima, Japan [PDF]

  • Itoh, S. et al.: Exploring impacts of environmental history on larval growth: Combination of otolith microstructure analyses and particle-tracking experiments, PICES annual meeting, Oct. 2011, Khabarovsk, Russia [PDF]

  • Itoh, S., I. Yasuda, and H. Ueno: Warn and cold-core anticyclonic eddies in the western subarctic North Pacific, PICES annual meeting, Oct. 2010, Portland, USA [PDF]

  • Itoh, S. and I. Yasuda: Characteristics of mesoscale eddies in the Kuroshio-Oyashio Extension Region detected from the distribution of the sea surface height anomaly, PICES annual meeting, Oct. 2009, Jeju, Korea [PDF]

  • Itoh, S. and T. Sugimoto: Frontal waves along the Kuroshio, AGU Fall meeting, Dec. 2008, San Fransisco, US [PDF]