Original Papers (Peer Reviewed Only)
 
2016
Shikata, T., G. Onitsuka, K. Abe, S. Kitatsuji, K. Yufu, Y. Yoshikawa, T. Honjo and K. Miyamur, 2016:Relationships between light environment and subsurface accumulation during the daytime in the red-tide dinoflagellate Karenia mikimotoi. Marine Biology. vol.164:18
Warren, M. A., G.D. Quartly, J.D.Shutler, P.I. Miller and Y. Yoshikawaaka, 2016:Estimation of ocean surface currents from maximum cross correlation applied to GOCI geostationary satellite remote sensing data over the Tsushima (Korea) Strats. J. Geophys. Res. Ocean. vol.121, pp.6993-7008
吉川 裕、鬼塚 剛、紫加田 知幸、油布 圭、萬年 隆裕、2016: 海洋表層の乱流混合と植物プランクトン動態、水産海洋研究、80巻3号、234-235頁
Akitomo, K., Hirano, M., Kinugawa, Y., Sakamoto, K., Tanaka, K.,2016:Scalings of the tidally induced bottom boundary layer in a shallow sea under a surface heating. J. Oceanogr. doi:10.1007/s10872-015-0343-z
Endoh, T., Yoshikawa, Y., Matsuno, T., Wakata, Y., Lee, K.J., Umlauf, L., 2016:Observational evidence for tidal straining over a sloping continental shelf. Cont. Shelf Res. doi:10.1016/j.csr.2016.01.018
2015
Zhang, W., Ebuchi, N., Fukamachi, Y., and Yoshikawa, Y., 2015: Estimation of wind drift current in the Soya Strait. J. Oceagr. doi: 10.1007/s10872-015-0333-1
Ide, Y. and Yoshikawa, Y., 2015: Effects of diurnal cycle of surface heat flux on wind-driven flow. J. Oceagr. doi:10.1007/s10872-015-0328-y
Park, Y., Shin, H.-R., Yoon, J.-H., Kim C.-H, and Yoshikawa, Y., 2015: Simulation of eddy-driven deep circulation in the East/Japan Sea by using a three-layer model with wind, throughflow and deep water formation forcings. J. Mar. Sys., Vol. 150, 41-55,doi:10.1016/j.jmarsys.2015.05.006
Yoshikawa, Y. and Endoh, T., 2015: Estimating the Eddy Viscosity Profile from Velocity Spirals in the Ekman Boundary Layer. J. Atmos. Ocean. Tech., Vol. 32(4), 793-804, doi:10.1175/JTECH-D-14-00090.1
Yoshikawa, Y., 2015: Scaling Surface Mixing/Mixed Layer Depth Under Stabilizing Buoyancy Flux. J. Phys. Oceanogr., Vol. 45(1), 247-258, doi: 10.1175/JPO-D-13-0190.1
2013
Nishina, K., Y. Ishikawa, T. Awaji, 2013: Simultaneous assimilation of surface drifter data, satellite and in-situ observations for improved estimates of meso-scale variability in the Kuroshio Extension Region. J. Oceanogr., Vol. 69(2), 175-190, doi:10.1007/s10872-012-0163-3
Akitomo, K., Y. Maeda, 2013: Characteristics of coastal thermohaline front: Its generation and positioning. Engan Kaiyo Kenkyu (in Japanese with English abstract), vol. 50(2), 141-147
2012
Cronin, M. F., N. A. Bond, J. T. Farrar, H. Ichikawa, S. R. Jayne, Y. Kawai, M. Konda, B. Qiu, L. Rainville, H. Tomita, 2012: Formation and erosion of the seasonal thermocline in the Kuroshio Extension recirculation gyre. Deep-Sea Res. II, doi:10.1016/j.dsr2.2012.07.018
Nakada, S., Y. Ishikawa, T. Awaji, T. In, S. Shima, T. Nakayama, T. Isada, S. Saitoh, 2012: Modeling Runoff into a Region Of Freshwater Influence for Improved Ocean Prediction: An Application in Funka Bay, Hydrological Research Letter, vol.6, 47--52. doi: 10.3178/HRL.6.47
2011
Akitomo, K., 2011Two types of thermobaric deep convection possible in the Greenland Sea, J. Geophys. Res., vol.116, C08012, doi:10.1029/2010JC006635.
Ito, K., Y. Ishikawa, Y. Miyamoto, and T. Awaji, 2011: Short-time-scale processes in a mature hurricane as a response to sea surface fluctuations., J. Atmos. Sci., 68(10), 2250-2272.
Kawamura, H., T. Kobayashi, A. Furuno, T. In, Y. Ishikawa, T. Nakayama, S. Shima, T. Awaji, 2011: Preliminary Numerical Experiments on Oceanic Dispersion of 131I and 137Cs Discharged into the Ocean because of the Fukushima Daiichi Nuclear Power Plant Disaster. J. Nucl. Sci. Tech., vol.48, 1349-1356.
Lipa, B., D. Berrick, S-I. Saitoh, Y. Ishikawa, T. Awaji, J. Larger, N. Garfield, 2011: Japan Tsunami Current Flows Observed by HF Radars on Two Continents. Remote Sens., vol.3, 1663-1679.
Matthers, J.P., H. Aiki, S. Masuda, T. Awaji, Y. Ishikawa, 2011: Monsoon regulation of Lombok Strait internal waves, J. Gesphys. Res., vol.116, C05007.
Nakada, S., Y. Umezawa, M. Taniguchi, H. Yamano, 2011: Groundwater Dynamics of Fongafale Islet, Funafuti Atoll, Tuvalu, Ground Water, vol.50(4), 639--644, doi:10.1111/j.1745-6584.2011.00874.x.
Saitoh, S.I., R. Mugo, I.N. Radiarta, S. Asaga, F. Takahashi, T. Hirawake, Y. Ishikawa, T. Awaji, T. In, S. Shima, 2011: Some operational uses of satellite remote sensing and marine GIS for sustainable fisheries and aquaculture. ICES J. Mar. Sci., vol.68, 687-695.
Toyoda T., T. Awaji, N. Sugiura, S. Masuda, H. Igarashi, Y. Sasaki, Y. Hiyoshi, Y. Ishikawa, T. Mochizuki, T. Sakamoto, H. Tatebe, Y. Komuro, T. Suzuki, T. Nishimura, M, Mori, Y. Chikamoto, S. Yasunaka, Y. Imada, M. Arai, M. Watanabe, H. Shiogama, T. Nozawa, A. Hasegawa, M. Ishii, M. Kimoto, 2011: Impact of the Assimilation of Sea Ice Concentration Data on an Atmosphere-Ocean-Sea Ice Coupled Simulation of the Arctic Ocean Climate. SOLA, vol.7, 37-40.
Toyoda T., T. Awaji, S. Masuda, N. Sugiura, H. Igarashi, T. Mochizuki, Y. Ishikawa, 2011: Interannual variability of North Pacific eastern subtropical mode water formation in the 1990s derived from a 4-dimensional variational ocean data assimilation experiment. Dyn. Atmos. Ocean, vol.51, 1-25.
2010
Ito, K., Y. Ishikawa, and T. Awaji, 2010: Specifying air-sea exchange coefficients in the high-wind regime of a mature tropical cyclone by an adjoint data assimilation method, SOLA, vol.6, 13-16, doi:10.2151/sola.2010-004.
Tomita, H., M. Kubota, M. F. Cronin, S. Iwasaki, M. Konda, and H. Ichikawa, 2010: An assesment of surface heat fluxes from J-OFURO at the KEO and JKEO sites, J. Geophys. Res., vol. 115, C03018, doi:10.1029/2009JC005545.
Konda, M., H. Ichikawa, H. Tomita, M. F. Cronin, 2010: Surface heat flux variations across the Kuroshio Extension as observed by surface flux buoys, J. Climate, vol. 23(19), 5206--5221.
2009
Sakamoto, K., K. Akitomo, 2009: The tidally induced bottom boundary layer in the rotating frame: development of the turbulent mixed layer under stratification. J. Fluid Mech., vol. 619 , 235 - 259.
Konda, M., H. Ichikawa, H. Tomita ,2009: Wind speed and latent heat flux retrieved by simultaneous observation of multiple geophysical parameters by AMSR-E, J. Remote Sens. Soc. Japan,vol. 29(1), 191 -198.
Masuda, S., T. Awaji, T. Toyoda, Y. Shikama, Y. Ishikawa, 2009: Temporal evolution of the equatorial thermocline associated with the 1991-2006 ENSO. J. Geophys. Res., vol. 114, C03015, doi:10.1029/2008JC004953.
Mochizuki T., T. Awaji, N. Sugiura, 2009:Possible oceanic feedback in the extratropics in relation to the North Atlantic SST tripole, Geophys. Res. Let., vol. 36, L05710.
Akitomo, K., K. Tanaka, M. Kumagai, and C. Jiao, 2009: Annual cycle of circulations in Lake Biwa, part 1: model validation. Limnology, vol. 10, 105-118, doi:10.1007/s10201-009-0267-7.
Akitomo, K., K. Tanaka, M. Kumagai, and C. Jiao, 2009: Annual cycle of circulations in Lake Biwa, part 2: mechanisms. Limnology, vol. 10, 119-129, doi:10.1007/s10201-009-0268-6.
Toyoda, T., S. Masuda, N. Sugiura, T. Mochizuki, H. Igarashi, M. Kamachi, Y. Ishikawa, and T. Awaji, 2009: A possible role for unstable coupled waves afected by resonance between Kelvin waves and seasonal warming in the development of the strong 1997-1998 El Nino. Deep-Sea Res. I., vol. 56, 495-512.
Ito, K., Y. Naito, and S. Yoden, 2009: Combined effects of QBO and 11-year solar cycle on the winter hemisphere in a stratosphere-troposphere coupled systemM, Geophys. Res. Lett., vol. 36, L11804, doi:10.1029/2008GL037117.
Nagano, A., K. Ichikawa, H. Ichikawa, M. Konda, and K. Murakami 2009: Synoptic flow structures in the confluence region of the Kuroshio and the Ryukyu Current, J. Geophys. Res., vol. 114, C06007, doi:10.1029/2008JC005213.
2008
Ando, K., Y. Masumoto, M. Konda, K. Kutsuwada, K. Mizuno, 2008: Report from the Symposium on "Observational studies of climate variability in the Pacific and Indian Oceans - Roles of surface buoy network -", Umi no Kenkyu vol. 17(1), 63-69 (in Japanese).
Nagano, A., H. Ichikawa, T. Miura, K. Ichikawa, M. Konda, Y. Yoshikawa, K. Obama, K. Murakami, 2008: Reply to comment by Xie-Hua Zhu et al. on "Current system east of the Ryukyu Islands", J. Geophys. Res., vol. 113, C030021, doi:10.1029/2007JC004561.
Sugiura, N., T. Awaji, S. Masuda, T. Mochizuki, T. Toyoda, T. Miyama, H. Igarashi, Y. Ishikawa, 2008: Development of a four-dimensional variational coupled data assimilation system for enhanced analysis and prediction of seasonal to interannual climate variations. J. Geophys. Res., vol. 113 C10017, doi:1029/2008JC004741.
Sakamoto, K., K. Akitomo, 2008: The tidally induced bottom boundary layer in a rotating frame: similarity of turbulence. J. Fluid Mech., vol. 615 , 1 - 25.
Akitomo, K., 2008: Effects of stratification and mesoscale eddies on Kuroshio path variation south of Japan, Deep-Sea Research I, vol. 55, 997-1008.
2007
Nagano, A. H. Ichikawa, T. Miura, K. Ichikawa, M. Konda, Y. Yoshikawa, K. Obama, K. Murakami, 2007: Current system east of the Ryukyu Islands. J. Geophys. Res., vol. 112, C06009, doi:10.1029/2006JC003917.
Nagura, M., M Konda, 2007: The Seasonal Development of an SST Anomaly in the Indian Ocean and Its Relationship to ENSO. J. Climate, vol. 20(1), 38 - 52.
Akitomo, K., 2007:Restriction of convective depth in the Weddell Sea ., Geophys. Res. Let.,, vol. 34(10), L10610
2006
Sakamoto, K., K. Akitomo, 2006: Instabilities of the tidally induced bottom boundary layer in the rotating frame and their mixing effect. Dyn. Atm. Ocea., vol. 41, 191-211.
Konda, M., A Shibata, N Ebuchi, K Arai, 2006:A correction of the effect of the relative wind direction on the wind speed derived by Advanced Microwave Scanning Radiometer. J. Oceanography, vol.62(3), 395-404.
Nakamura T., T Toyoda, Y Ishikawa,T Awaji, 2006: Enhanced Ventilation in the Okhotsk Sea through tidal mixing at the Kuril Straits, Deep Sea Res., vol.53, 425-448.
Nakamura T., T Toyoda, Y Ishikawa, T Awaji, 2006: Effects of tidal mixing at the Kuril Straits on the North Pacific ventilation: Adjustment of intermediate layer revealed from numerical experiments, J. Geophys.Res., vol.111, C04003, doi:10.1029/2005JC003142.
Akitomo K., 2006:Thermobaric deep convection, baroclinic instability, and their roles in vertical heat transport around Maud Rise in the Weddell Sea. , J. Geophys. Res., vol 111(9), C09027.
2005
Nagura, M., M Konda, 2005: The relationship between the interannual variation of the Indian Ocean SST induced by the Indian Monsoon and ENSO. J. Climate, vol. 18(12), 1942 -1956.
Konda, M., H. Ichikawa, I. -S. Han, X. H Zhu, K Ichikawa 2005: Variability of current structure due to meso-scale eddies on the bottom slope southeast of Okinawa Island. J. Oceanogr., 61, 1089 - 1099.
Akitomo, K., 2005: Numerical study of baroclinic instability associated with thermobaric deep convection at high latitudes: Idealized cases. Deep-Sea Res.,52(6),937-957.
2004
Konda, M., A. Shibata, 2004: An experimental approach to correct the microwave rariometer wind speed affected by the change of the brightness temperature due to the relative wind direction. Geophys. Res. Lett., 31 (9), L09302 10.1029/2004GL019487.
Akitomo, K., M. Kurogi, and M. Kumagai, 2004: Numerical study of a thermally induced gyre system in Lake Biwa. Limnology, 5, 103 - 114, doi: 10.1007/s10201-004-0122-9.
Nakamura, T., T. Awaji, 2004: Tidally induced diapycnal mixing in the Kuril Straits and its role in water transformation and transport, J. Geophys. Res., 109, C09S07, doi:10.1029/2003JC001850.
Toyoda, T., T. Awaji, Y. Ishikawa, T. Nakamura, 2004: Preconditioning of winter mixed layer in the formation of North Pacific eastern subtropical mode water, Geophys. Res. Lett., 31, doi:10.1029/2004GL020677.
2003
Komori, N., T. Awaji, Y. Ishikawa, and T. Kuragano, 2003: Short-range forecast experiments of the Kuroshio path variabilities south of Japan using TOPEX/Poseidon altimetric data, J. Geophys. Res., 108(C1), 3010, DOI 10.1029/2001JC001282.
Kurogi, M., K. Akitomo, 2003: Stable paths of the Kuroshio south of Japan determined by the wind stress field. J. Geophys. Res., 108, 3332,doi:10.1029/2003JC001853.
Yoshikawa, Y., and K. Akitomo, 2003: Transverse roll convection in horizontal plane Couette flow. J. Fluid Mech., 493, 191-208.
Masuda, S., T. Awaji, N. Sugiura, Y. Ishikawa, K. Baba, K. Horiuchi, and N. Komori, 2003: Improved estimates of the dynamical state of the North Pacific Ocean from a 4-dimensional variational data assimilation, Geophys. Res. Lett. 30, doi:10.1029/2003GRL017604.
Awaji, T., S. Masuda, Y. Ishikawa, N. Sugiura, T. Toyoda, and T. Nakamura, 2003: State estimation of the North Pacific Ocean by a four-dimensional variational data assimilation experiment, J. Oceanogr., 59, 931-943.
2002
Kubota, M., N. Iwasaka, S. Kizu, M. Konda, and K. Kutsuwada, 2002: Japanese Ocean Flux data sets with Use of Remote sensing Observations (J-OFURO). J. Oceanogr., 58 (1), 213-225.
Konda, M., N. Imasato, and A. Shibata, 2002: Interannual variability of the sea surface temperature in the Indian Ocean in response to the air-sea turbulent heat exchange. Deep-Sea Res. II, 49, 1527 - 1548.. Deep-Sea Res. II, 49 (7-8), 1527-1548.
2001
Akitomo, K., and M. Kurogi, 2001: Path transition of the Kuroshio due to mesoscale eddies: A two-layer, wind-driven experiment. J. Oceanogr., 57 (6), 735-741.
Ishikawa, Y., T. Awaji, and N. Komori, 2001: Dynamical initialization for the numerical forecasting of ocean surface circulations using a variational assimilation system. J. Phys. Oceanogr., 31 (1), 75-93.
Nakamura, T., and T. Awaji, 2001: A growth mechanism for topographic internal waves generated by an oscillatory flow. J. Phys. Oceanogr., 31 (8), 2511-2524.
Ostrovskii, A., A. Kaneko, A. Stuart-Menteth, K. Takeuchi, T. Yamagata, J.-H. Park, X. H. Zhu, N. Gohda, H. Ichikawa, K. Ichikawa, A. Isobe, M. Konda, and S.-I. Umatani, 2001: Kuroshio Observation Program: Towards real-time monitoring of the Japanese coastal waters. Ocean and Polar Res., 23 (2), 141-160.
Tanaka, K., and K. Akitomo, 2001: Baroclinic instability of density current along a sloping bottom and the associated transport process. J. Geophys. Res., 106 (C2), 2621-2638.
Yoshikawa, Y., K. Akitomo, and T. Awaji, 2001: Formation process of intermediate water in baroclinic current under cooling. J. Geophys. Res., 106 (C1), 1033-1051.
2000
Masuda, S., and K. Akitomo, 2000: Effects of stratification and bottom topography on the Kuroshio path variation south of Japan. Part II: Path transitions in a multiple equilibrium regime. J. Phys. Oceanogr., 30 (6), 1431-1449.
Masuko, H., K. Arai, N. Ebuchi, M. Konda, M. Kubota, K. Kutsuwada, T. Manabe, A. Mukaida, T. Nakazawa, A. Nomura, A. Shibata, and Y. Tahara, 2000: Evaluation of vector winds observed by NSCAT in the seas around Japan. J. Oceanogr., 56 (5), 495-505.
Nakamura, T., T. Awaji, T. Hatayama, K. Akitomo, and T. Takizawa, 2000: Tidal exchange through the Kuril Straits. J. Phys. Oceanogr., 30 (7), 1622-1644.
Nakamura, T., T. Awaji, T. Hatayama, K. Akitomo, T. Takizawa, T. Kono, Y. Kawasaki, and M. Fukasawa, 2000: The generation of large-amplitude unsteady lee waves by subinertial K1 tidal flow: A possible vertical mixing mechanism in the Kuril Straits. J. Phys. Oceanogr., 30 (7), 1601-1621.
Tanaka, K., and K. Akitomo, 2000: Density current descending along continental slope and the associated deep water formation: Two-dimensional numerical experiments with a nonhydrostatic model. J. Oceanogr., 56 (2), 117-130.
1999
Akitomo, K., 1999: Open-ocean deep convection due to thermobaricity, 1, Scaling argument. J. Geophys. Res., 104 (C3), 5225-5234.
Akitomo, K., 1999: Open-ocean deep convection due to thermobaricity, 2, Numerical experiments. J. Geophys. Res., 104 (C3), 5235-5249.
Masuda, S., K. Akitomo, and T. Awaji, 1999: Effects of stratification and bottom topography on the Kuroshio path variation south of Japan. Part I: Dependence of the path selection on velocity. J. Phys. Oceanogr., 29 (9), 2419-2432.
Yoshikawa, Y., T. Awaji, and K. Akitomo, 1999: Formation and circulation processes of intermediate water in the Japan Sea. J. Phys. Oceanogr., 29 (8), 1701-1722.
1998
 
1997
Akitomo, K., S. Masuda, and T. Awaji, 1997: Kuroshio path variation south of Japan: Stability of the paths in a multiple equilibrium regime. J. Oceanogr., 53 (2), 129-142.
Ishikawa, Y., T. Awaji, and K. Akitomo, 1997: Global surface circulation and its kinetic energy distribution derived from drifting buoys. J. Oceanogr., 53 (5), 489-516.
1996
Akitomo, K., M. Ooi, T. Awaji, and K. Kutsuwada, 1996: Interannual variability of the Kuroshio transport in response to the wind stress field over the North Pacific: Its relation to the path variation south of Japan. J. Geophys. Res., 101 (C6), 14,057-14,071.
Hatayama, T., T. Awaji, and K. Akitomo, 1996: Tidal current in the Indonesian Seas and their effect on transport and mixing. J. Geophys. Res., 101 (C5), 12,353-12,373.
Ishikawa, Y., T. Awaji, K. Akitomo, and B. Qiu, 1996: Successive correction of the mean sea surface height by the simultaneous assimilation of drifting buoy and altimetric data. J. Phys. Oceanogr., 26 (11), 2381-2397.
Konda, M., N. Imasato, and A. Shibata, 1996: A new method to determine near-sea surface air temperature by using satellite data. J. Geophys. Res., 101 (C6), 14,349-14,360.
Konda, M., N. Imasato, and A. Shibata, 1996: Analysis of the global relationship of biennial variation of sea surface temperature and air-sea heat flux using satellite data. J. Oceanogr., 52 (6), 717-746.
Miyama, T., T. Awaji, K. Akitomo, and N. Imasato, 1996: A Lagrangian approach to the seasonal variation of salinity in the mixed layer of the Indonesian Seas. J. Geophys. Res., 101 (C5), 12,265-12,285.
1995
Akitomo, K., T. Awaji, and N. Imasato, 1995: Open ocean deep convection in the Weddell Sea: Two-dimensional numerical experiments with a nonhydrostatic model. Deep-Sea Res., 42 (1), 53-73.
Akimoto, K., K. Tanaka, T. Awaji, and N. Imasato, 1995: Deep convection in a lake triggered by wind: Two-dimensional numerical experiments with a nonhydrostatic model. J. Oceanogr., 51 (2), 171-185.
Miyama, T., T. Awaji, K. Akitomo, and N. Imasato, 1995: Study of seasonal transport variations in the Indonesian Seas. J. Geophys. Res., 100 (C10), 20,517-20,541.