研究業績

【原著論文】

Kashiwase, H., K. I. Ohshima, T. Tamura (in press)
Development and validation of a global thin ice thickness algorithm for SMMR. Journal of Atmospheric and Oceanic Technology, (in press).
Mensah, V., Y-C. Chen, D. Nomura, H. Ueno, H. Chien, K. I. Ohshima (2024)
Multidecadal decline in sea ice meltwater volume and Pacific Winter Water salinity in the Bering Sea revealed by ocean observations. Progress in Oceanography, 103377, doi:10.1016/j.pocean.2024.103377.
Blanckensee, S. N., D. E. Gwyther, B. K. Galton-Fenzi, K. L. Gunn, L. Herraiz-Borreguero, K. I. Ohshima, et al. (2024)
A review of the oceanography and Antarctic Bottom Water formation offshore Cape Darnley, East Antarctica. Journal of Geophysical Research, 129, e2024JC021251, doi:10.1029/2024JC021251.
Mizuta, G., K. I. Ohshima, T. Takatsuka, Y. Kitade, M. Fujii, Y. Nakayama, M. Ikehara (2024)
Circulation and production of Cape Darnley Bottom Water on the continental slope. Deep Sea Research Part 1, 211, doi:10.1016/j.dsr.2024.104362.
Mensah, V. and K. I. Ohshima (2024)
Evaluation of the water mass composition in the Sea of Okhotsk and its long-term change using an advanced mapping technique. Journal of Geophysical Research, 129, e2023JC020374, doi:10.1029/2023JC020374.
Honda, M., K. I. Ohshima, V. Mensah, J. Nishioka, M. Sato, S. C. Riser (2024)
Sea ice-melt amount estimated from spring hydrography in the Sea of Okhotsk: spatial and interannual variabilities. Journal of Oceanography, 80, doi:10.1007/s10872-024-00721-z.
Ebuchi, N., Y. Fukamachi, K. I. Ohshima, H. Mitsudera, J. Nishioka, T. Takatsuka, K. Ono, M. Ishikawa, T. Daibo, K. Shirasawa, M. Wakatsuchi (2024)
Long-term observation of the Soya Warm Current using HF ocean radars: Relationship between the Soya Warm Current variability and the sea level anomalies in the Soya/La Perouse Strait. Journal of Oceanography, 80, 239-249, doi:10.1007/s10872-024-00724-w.
Kuga, M., K. I. Ohshima, S. Kishi, N. Kimura, T. Toyota, J. Nishioka (2024)
Backward-tracking simulations of sea ice in the Sea of Okhotsk toward understanding of material transport through sea ice. Journal of Oceanography, 80, 59-70, doi:10.1007/s10872-022-00670-5.
Nihashi, S., K. I. Ohshima, and T. Tamura (2024)
AMSR-E/2 thin ice thickness algorithm to create a long-term time series of sea-ice production in Antarctic coastal polynyas. Polar Science, 39, 100978, doi:10.1016/j.polar.2023.100978.
Silvano, A., S. Purkey, A. L. Gordon, P. Castagno, A. L. Stewart, S. R. Rintoul, A. Foppert, K. L. Gunn, L. Herraiz-Borreguero, S. Aoki, Y. Nakayama, A. C. Naveira Garabato, C. Spingys, C. H. Akhoudas, J-B Sallee, C. de Lavergne, E. P. Abrahamsen, A. J. S. Meijers, M. P. Meredith, S. Zhou, T. Tamura, K. Yamazaki, K. I. Ohshima, P. Falco, G. Budillon, T. Hattermann, M. A. Janout, P. Llanillo, M. M. Bowen, E. Darelius, S. Østerhus, K. W. Nicholls, C. Stevens, D. Fernandez, L. Cimoli, S. S. Jacobs, A. K. Morrison, A. M. Hogg, F. A. Haumann, A. Mashayek, Z. Wang, R. Kerr, G. D. Williams, W. S. Lee (2023)
Observing Antarctic Bottom Water in the Southern Ocean.
Front. Mar. Sci., 10:1221701. doi:10.3389/fmars.2023.1221701.
Hirano, D., T. Tamura, K. Kusahara, M. Fujii, K. Yamazaki, Y. Nakayama, K. Ono, T. Itaki, Y. Aoyama, D. Simizu, K. Mizobata, K. I. Ohshima, Y. Nogi, S. R. Rintoul, Esmee van Wijk, J. S. Greenbaum, D. D. Blankenship, K. Saito, S. Aoki (2023)
On-shelf circulation of warm water toward the Totten Ice Shelf in East Antarctica. Nature Communications, 14:4955, doi:10.1038/s41467-023-39764-z. [Open Access]
Ohashi, Y., M. Yamamoto-Kawai, K. Kusahara, K. Sasaki, K. I. Ohshima (2023)
Circumpolar distributions of age and anthropogenic CO2 content of Antarctic Bottom Water revealed by chloroﬂuorocarbon and sulfur hexaﬂuoride. Progress in Oceanography, 219, 103153,
https://doi.org/10.1016/j.pocean.2023.103153.
Mensah, V. and K. I. Ohshima (2023)
A mapping methodology adapted to all polar and subpolar oceans with a stretching/shrinking constraint.
Journal of Atmospheric and Oceanic Technology, 40, 1241-1261, doi:10.1175/JTECH-D-22-0143.1.
Ohshima, K. I. and M. Kuga (2023)
50-year volume transport of the Soya Warm Current estimated from the sea-level difference and its relationship with the Tsushima and Tsugaru Warm Currents. Journal of Oceanography, 79, 499‒515, doi:10.1007/s10872-023-00693-6. [Open Access]
Takahashi, K. D., M. Ito, M. Sano, R. Makabe, M. Yamamoto-Kawai, K. I. Ohshima (2023)
Summer ice-algal blooms by the diatom Fragilariopsis curta (Van Heurck) Hustedt off Cape Darnley, Southern Ocean. DIATOM, 39, 12-20, doi:10.11464/diatom.39.12.
Kuga, M, K. I. Ohshima, N. Kimura, K. Nakata, Y. Fukamachi (2023)
Particle-tracking experiments of coastal-origin sea ice that could induce high biological productivity in the Sea of Okhotsk. Journal of Oceanography, 79, 145–159, doi:10.1007/s10872-022-00670-5.
Ohshima, K. I., Y. Fukamachi, M. Ito, K. Nakata, D. Simizu, K. Ono, D. Nomura, G. Hashida, T. Tamura (2022)
Dominant frazil ice production in the Cape Darnley polynya leading to Antarctic Bottom Water formation. Science Advances, 8, eadc9174, doi:10.1126/sciadv.adc9174. [Open Access] [FOCUS paper] [Press Release]
Nakata K. and K. I. Ohshima (2022)
Mapping of active frazil and sea ice production in the Northern Hemisphere, with comparison to the Southern Hemisphere. Journal of Geophysical Research, 127, e2022JC018553, doi:10.1029/2022JC018553. [Open Access]
Ohashi, Y., M. Yamamoto-Kawai, K. Kusahara, K. Sasaki, K. I. Ohshima (2022)
Age distribution of Antarctic Bottom Water off Cape Darnley, East Antarctica, estimated using chlorofluorocarbon and sulfur hexafluoride. Scientific Reports, 12, 8462, doi:10.1038/s41598-022-12109-4.
Hirano, D., Y. Fukamachi, K. I. Ohshima, M. Ito, T. Tamura, D. Simizu, T. Takatsuka, A. R. Mahoney, J. Jones, C. George, B. Adams, H. Eicken (2022)
Oceanic conditions in the Barrow Coastal Polynya revealed by a 10-year mooring time series. Progress in Oceanography, 203, 102781, doi:10.1016/j.pocean.2022.102781.
Fraser, A. D., R. A. Massom, M. S. Handcock, P. Reid, K. I. Ohshima, M. N. Raphael, J. Cartwright, A. R. Klekociuk, Z. Wang, and R. Porter-Smith (2021)
Eighteen-year record of circum-Antarctic landfast-sea-ice distribution allows detailed baseline characterisation and reveals trends and variability. The Cryosphere, 15, 5061-5077, doi:10.5194/tc-15-5061-2021. (Research highlights in Nature Climate Change)
Ito M., K. I. Ohshima, Y. Fukamachi, G. Mizuta, Y. Kusumoto, and T. Kikuchi (2021)
Underwater frazil ice and its suspension depth detected from ADCP backscatter data around sea ice edge in the Sea of Okhotsk. Cold Regions Science and Technology, 192, 103382, doi:10.1016/j.coldregions.2021.103382.
Mensah, V. and K. I. Ohshima (2021)
Weakened overturning and tide control the properties of Oyashio Intermediate Water, a key water mass in the North Pacific. Scientific Reports, 11, 14526, doi:10.1038/s41598-021-93901-6.
Mensah, V., Y. Nakayama, M. Fujii, Y. Nogi, and K. I. Ohshima (2021)
Dense water downslope flow and AABW production in a numerical model: Sensitivity to horizontal and vertical resolution in the region off Cape Darnley polynya. Ocean Modelling, 165, 101843, doi:10.1016/j.ocemod.2021.101843.
Mizuta, G., Y. Fukamachi, D. Simizu, Y. Matsumura, Y. Kitade, D. Hirano, M. Fujii, Y. Nogi, and K. I. Ohshima (2021)
Seasonal evolution of Cape Darnley Bottom Water revealed by mooring measurements. Frontiers in Marine Science, doi:10.3389/fmars.2021.657119.
Kishi, S., K. I. Ohshima, J. Nishioka, N. Isshiki, S. Nihashi, and S. C. Riser (2021)
The prominent spring bloom and its relation to sea ice melt in the Sea of Okhotsk, revealed by profiling floats. Geophysical Research Letters, 48, e2020GL091354, doi:10.1029/2020GL091354.
Nakata, K., K. I. Ohshima, and S. Nihashi (2021)
Mapping of active frazil for Antarctic coastal polynyas, with an estimation of sea-ice production. Geophysical Research Letters, 48, e2020GL091353, doi:10.1029/2020GL091353.
Kashiwase, H., K. I. Ohshima, K. Nakata, and T. Tamura (2021)
Improved SSM/I thin ice algorithm with ice type discrimination in coastal polynyas. Journal of Atmospheric and Oceanic Technology, 38, doi:10.1175/JTECH-D-20-0145.1.
Ohshima, K. I., N. Tamaru, H. Kashiwase, S. Nihashi, K. Nakata, and K. Iwamoto (2020)
Estimation of sea ice production in the Bering Sea from AMSR-E and AMSR2 data, with special emphasis on the Anadyr polynya. Journal of Geophysical Research, 125, e2019JC016023, doi:10.1029/2019JC016023.
Fraser, A. D., R. A. Massom, K. I. Ohshima, S. Willmes, P. J. Kappes, J. Cartwright, and R. Porter-Smith (2020)
High-resolution mapping of circum-Antarctic landfast sea distribution, 2000–2018. Earth System Science Data, 12, 2987–2999, doi:10.5194/essd-12-2987-2020.
Hirano, D., T. Tamura, K. Kusahara, K. I. Ohshima, K. W. Nicholls, S. Ushio, D. Simizu, K. Ono, M. Fujii, Y. Nogi, and S. Aoki (2020)
Strong ice-ocean interaction beneath Shirase Glacier Tongue in East Antarctica. Nature Communications, 11:4221, doi:10.1038/s41467-020-17527-4.
Mensah, V. and K. I. Ohshima (2020)
Variabilities of the sea surface height in the Kuril Basin of the Okhotsk Sea: Coherent shelf-trapped mode and Rossby Normal Modes. Journal of Physical Oceanography, 50, 2289-2313, doi:10.1175/JPO-D-19-0216.1.
Murakami, K., D. Nomura,, G. Hashida, S. Nakaoka, Y. Kitade, D. Hirano, T. Hirawake, and K. I. Ohshima (2020)
Strong biological carbon uptake and carbonate chemistry associated with dense shelf water outﬂows in the Cape Darnley polynya, East Antarctica. Marine Chemistry, 225, 103842, doi:10.1016/j.marchem.2020.103842.
Ito, M., Y. Fukamachi, K. I. Ohshima, K. Shirasawa (2020)
Observational evidence of supercooling and frazil ice formation throughout the water column in a coastal polynya in the Sea of Okhotsk. Continental Shelf Research, 196, 104072, doi:10.1016/j.csr.2020.104072.
Ito, M., K. I. Ohshima, Y. Fukamachi, D. Hirano, A. R. Mahoney, J. Jones, T. Takatsuka and H. Eicken (2019)
Favorable conditions for suspension freezing in an Arctic coastal polynya. Journal of Geophysical Research, 124, 8701-8719, doi:10.1029/2019JC015536.
Kashiwase, H., K. I. Ohshima, Y. Fukamachi, S. Nihashi and T. Tamura (2019)
Evaluation of AMSR-E thin ice thickness algorithm from a mooring-based observation: How can the satellite observe a sea ice field with non-uniform thickness distribution? Journal of Atmospheric and Oceanic Technology, 36, 1623-1641, doi:10.1175/JTECH-D-18-0218.1.
Preusser, A., K. I. Ohshima, K. Iwamoto, S. Willmes and G. Heinemann (2019)
Retrieval of wintertime sea ice production in Arctic polynyas using thermal infrared and passive microwave remote sensing data. Journal of Geophysical Research, 124, doi:10.1029/2019JC014976.
Fraser, A. D., K. I. Ohshima, S. Nihashi, R. A. Massom, T. Tamura, K. Nakata, G. D. Williams, S. Carpentier, and S. Willmes (2019)
Landfast ice controls on sea-ice production in the Cape Darnley Polynya: A case study. Remote Sensing of Environment, 233, https://doi.org/10.1016/j.rse.2019.111315.
Zhang, W.,N. Ebuchi, Y. Fukamachi, F. Cheng, K. I. Ohshima, B. Emery, T. Toyota, H. Abe, and K. Shirasawa (2019)
Sea ice observation with oceanographic HF radar. IEEE Transactions on Geoscience and Remote Sensing, 127, doi:10.1109/TGRS.2019.2936576.
Mensah, V., K. I. Ohshima, T, Nakanowatari, and S. Riser (2019)
Seasonal changes of water mass, circulation and dynamic response in the Kuril Basin of the Sea of Okhotsk. Deep-Sea Research I, 144, 115-131, doi:10.1016/j.dsr.2019.01.012.
Nakata, K., K. I. Ohshima, and S. Nihashi (2019)
Estimation of thin ice thickness and discrimination of ice type from AMSR-E passive microwave data. IEEE Transactions of Geoscience and Remote Sensing, 57(1), 263-276, doi:10.1109/TGRS.2018.2853590.
Hirano, D., Y. Fukamachi, K. I. Ohshima, E. Watanabe, A. R. Mahoney, H. Eicken, M. Itoh, D. Simizu, K. Iwamoto, J. Jones, T. Takatsuka, T. Kikuchi, and T. Tamura (2018)
Winter water formation in coastal polynyas of the eastern Chukchi Shelf: Pacific and Atlantic influences. Journal of Geophysical Research, 123, 5688-5705, doi:10.1029/2017JC013307.
Nihashi, S., N. T. Kurtz, T. Markus, K. I. Ohshima, K. Tateyama, and T. Toyota (2018)
Estimation of sea-ice thickness and volume in the Sea of Okhotsk based on ICESat data. Annals of Glaciology, 59(76pt2),101-111, doi:10.1017/aog.2018.8.
Nomura, D., M. A. Granskog, A. Fransson, M. Chierici, A. Silyakova, K. I. Ohshima, L. Cohen, B. Delille, S. R. Hudson, and G. S. Dieckmann (2018)
CO2 flux over young and snow-covered Arctic pack ice in winter and spring. Biogeosciences, 15, 3331-3343, doi:10.5194/bg-15-3331-2018.
Kashiwase, H., K. I. Ohshima, S. Nihashi, and H. Eicken (2017)
Evidence for ice-ocean albedo feedback in the Arctic Ocean shifting to a seasonal ice zone. Scientific Reports, 7:8170, DOI:10.1038/s41598-017-08467-z. [Open Access] [Press Release]
Nihashi, S., K. I. Ohshima, and S. Saitoh (2017)
Sea-ice production in the northern Japan Sea. Deep-Sea Research I, 127, 65-76, doi:10.1016/j.dsr.2017.08.003.
Nihashi, S., K. I. Ohshima, and T. Tamura (2017)
Sea-ice production in Antarctic coastal polynyas　estimated from AMSR2 data and its validation using AMSR-E and SSM/I-SSMIS data. IEEE J. Sel. Topics Appl. Earth Observ. Remote Sens., 10(9),3912-3922, doi:10.1109/JSTARS.2017.2731995.
Ohshima, K. I., D. Simizu, N. Ebuchi, S. Morishima, and H. Kashiwase (2017)
Volume, heat, and salt transports through the Soya Strait and their seasonal and interannual variations. Journal of Physical Oceanography, 47, 999-1019, doi:10.1175/JPO-D-16-0210.1.
Fukamachi, Y., D. Simizu, K. I. Ohshima, H. Eicken, A. R. Mahoney, K. Iwamoto, E. Moriya, and S. Nihashi (2017)
Sea-ice thickness in the coastal northeastern Chukchi Sea from moored ice-profiling sonar. Journal of Glaciology, 63, 888-898, doi:10.1017/jog.2017.56.
Nakanowatari, T., K. I. Ohshima, V. Mensah, Y. Mitani, K. Hattori, M. Kobayashi, F. Roquet, Y. Sakurai, H. Mitsudera, and M. Wakatsuchi (2017)
Hydrographic observations by instrumented marine mammals in the Sea of Okhotsk. Polar Science, 13, 56-65, doi:10.1016/j.polar.2017.06.001. [Open Access]
Ito, M., K. I. Ohshima, Y. Fukamachi, G. Mizuta, Y. Kusumoto, and J. Nishioka (2017)
Observations of frazil ice formation and upward sediment transport in the Sea of Okhotsk: A possible mechanism of iron supply to sea ice. Journal of Geophysical Research, 122, 788-802, doi:10.1002/2016JC012198.
Shimada, K., S. Aoki, K. I. Ohshima (2017)
Creation of a gridded dataset for the Southern Ocean with a topographic constraint scheme. Journal of Atmospheric and Oceanic Technology, 34, 511-532, doi:10.1175/JTECH-D-16-0075.1.
Williams, G. D., L. Herraiz-Borreguero, F. Roquet, T. Tamura, K. I. Ohshima, Y. Fukamachi, A. D. Fraser, L. Gao, H. Chen, C. R. McMahon, R. Harcourt and M. Hindell (2016)
The suppression of Antarctic Bottom Water formation by melting ice shelves in Prydz Bay. Nature Communincations, 7:12577, doi:10.1038/ncomms12577. [Open Access] [注目のハイライト]
Jones, J., H. Eicken, A. Mahoney, Rohith MV, C. Kambhamettu, Y. Fukamachi, K. I. Ohshima, and J. C. George (2016)
Landfast sea ice breakouts: Stabilizing ice features, oceanic and atmospheric forcing at Barrow, Alaska. Continental Shelf Research,126, 50-63, doi:10.1016/j.csr.2016.07.015.
Ohshima, K. I., S. Nihashi, and K. Iwamoto (2016)
Global view of sea-ice production in polynyas and its linkage to dense/bottom water formation. Geoscience Letters, 3:13, doi:10.1002/2015JC011537. [Open Access]
Tamura, T., K. I. Ohshima, A. D. Fraser, and G. D. Williams (2016)
Sea ice production variability in Antarctic coastal polynyas. Journal of Geophysical Research, 121, 2967-2979, doi:10.1002/2015JC011537.
Hirano, D., Y. Fukamachi, E. Watanabe, K. I. Ohshima, K. Iwamoto, A. R. Mahoney, H. Eicken, D. Simizu, and T. Tamura (2016)
A wind-driven, hybrid latent and sensible heat coastal polynya off Barrow, Alaska. Journal of Geophysical Research, 121, 980-997, doi:10.1002/2015JC011318.
Sugimoto, F., T. Tamura, H. Shimoda, S. Uto, D. Simizu, K. Tateyama, S. Hoshino, T. Ozeki, Y. Fukamachi, S. Ushio, K. and K. I. Ohshima (2016)
Interannual variability of sea-ice thickness in the pack-ice zone off Lutzow-Holm Bay, East Antarctica. Polar Science, 10, 43-51.
Nakata, K., K. I. Ohshima, S. Nihashi, N. Kimura, and T. Tamura (2015)
Variability and ice production budget in the Ross Ice Shelf Polynya based on a simplified polynya model and satellite observations. Journal of Geophysical Research, 120, 6234-6252, doi:10.1002/2015JC010894.
Nihashi, S., and K. I. Ohshima (2015)
Circumpolar mapping of Antarctic coastal polynyas and landfast sea ice: relationship and variability. Journal of Climate, 28, 3650-3670, doi:10.1175/JCLI-D-14-00369.
Tamura, T., K. I. Ohshima, J. L. Lieser, T. Toyota, K. Tateyama, D. Nomura, K. Nakata, A. D. Fraser, P. W. Jansen, K. B. Newbery, R. A. Massom, and S. Ushio (2015)
Helicopter-borne observations with portable microwave radiometer in the Southern Ocean and the Sea of Okhotsk. Annals of Glaciology, 56(69), doi:10.3189/2015AoG69A621.
Itoh, M., R. S. Pickart, T. Kikuchi, Y. Fukamachi, K. I. Ohshima, D. Simizu, K. R. Arrigo, S. Vagle, J. He, C. Ashjian, J. T. Mathis, S. Nishino and C. Nobre (2015)
Water properties, heat and volume fluxes of Pacific water in Barrow Canyon during summer 2010. Deep-Sea Research I, 102, 43-54, doi:10.1016/j.dsr.2015.04.004.
Matsumura, Y., and K. I. Ohshima (2015)
Lagrangian modelling of frazil ice in the ocean. Annals of Glaciology, 56(69), doi:10.3189/2015AoG69A657.
Mahoney, A. R., H. Eicken, Y. Fukamachi, K. I. Ohshima, D. Simizu, C. Kambhamettu, Rohith, M.V., S. Hendricks, and J. Jones (2015)
Both sides of the ice: comparison of ice thickness and velocity from moored, airborne and shore-based instruments near Barrow, Alaska. Annals of Glaciology, 56(69), 363-372, doi:10.3189/2015AoG69A565.
Hirano, D., Y. Kitade, K. I. Ohshima, and Y. Fukamachi (2015)
The role of turbulent mixing in the modified Shelf Water overflows that produce Cape Darnley Bottom Water. Journal of Geophysical Research, 120, 910-922, doi:10.1002/2014JC010059.
Ito, M., K. I. Ohshima, Y. Fukamachi, D. Simizu, K. Iwamoto, Y. Matsumura, A. R. Mahoney, and H. Eicken (2015)
Observations of supercooled water and frazil ice formation in an Arctic coastal polynya from moorings and satellite imagery. Annals of Glaciology, 56(69), 307-314, doi:10.3189/2015AoG69A839.
Nakanowatari, T., H. Mitsudera, T. Motoi, I. Ishikawa, K. I. Ohshima, and M. Wakatsuchi (2015)
Multidecadal-scale freshening at the salinity minimum in the western part of North Pacific: Importance of wind-driven cross-gyre transport of subarctic water to the subtropical gyre. Journal of Physical Oceanography, 45, 988-1008, doi:10.1175/JPO-D-13-0274.1.
Nakanowatari, T., T. Nakamura, K. Uchimoto, H. Uehara, H. Mitsudera, K. I. Ohshima, H. Hasumi, and M. Wakatsuchi (2015)
Causes of the multidecadal-scale warming of the intermediate water in the Okhotsk Sea and western subarctic North Pacific. Journal of Climate, 28, 714-736, doi:10.1175/JCLI-D-14-00172.1.
Nakayama, Y., K. I. Ohshima, Y. Matsumura, Y. Fukamachi, and H. Hasumi (2014)
A numerical investigation of formation and variability of Antarctic Bottom Water off Cape Darnley, East Antarctica. Journal of Physical Oceanography, 44, 2921-2937, doi:10.1175/JPO-D-14-0069.1.
Kusahara, K. and K. I. Ohshima (2014)
Kelvin Waves around Antarctica. Journal of Physical Oceanography, 44, 2909-2920, doi:10.1175/JPO-D-14-0051.1.
Iwamoto, K., K. I. Ohshima, and T. Tamura (2014)
Improved mapping of sea ice production in the Arctic Ocean using AMSR-E thin ice thickness algorithm. Journal of Geophysical Research, 119, 3574-3594, doi:10.1002/2013JC009749.
Kitade, Y., K. Shimada, T. Tamura, G. D. Williams, S. Aoki, Y. Fukamachi, F. Roquet, M. Hindell, S. Ushio, K. I. Ohshima (2014)
Antarctic Bottom Water production from the Vincennes Bay Polynya, East Antarctica. Geophysical Research Letters, 41, 3528-3534, doi:10.1002/2014GL059971.
Ohshima, K. I., T. Nakanowatari, S. Riser, Y. Volkov, and M. Wakatsuchi (2014)
Freshening and dense shelf water reduction in the Okhotsk Sea linked with sea ice decline. Progress in Oceanography, 126, 71-79, doi:10.1016/j.pocean.2014.04.020.
Nakanowatari, T. and K. I. Ohshima (2014)
Coherent sea level variation in and around the Sea of Okhotsk Progress in Oceanography, 126, 58-70, doi:10.1016/j.pocean.2014.05.009.
Kashiwase, H., K. I. Ohshima, and S. Nihashi (2014)
Long-term variation in sea ice production and its relation to the intermediate water in the Sea of Okhotsk. Progress in Oceanography, 126, 21-32, doi:10.1016/j.pocean.2014.05.004.
Simizu, D., K. I. Ohshima, J. Ono, Y. Fukamachi, G. Mizuta (2014)
What drives the southward drift of sea ice in the Sea of Okhotsk? Progress in Oceanography, 126, 33-43, doi:10.1016/j.pocean.2014.05.013.
Yagi, M., I. Yasuda, T. Tanaka, Y. Tanaka, K. Ono, K. I. Ohshima, K. Katsumata (2014)
Re-evaluation of turbulent mixing vertical structure in the Bussol' Strait and its impact on water masses in the Okhotsk Sea and the North Pacific. Progress in Oceanography, 126, 121-134, doi:10.1016/j.pocean.2014.04.023.
Ohshima, K. I., Y. Fukamachi, G. D. Williams, S. Nihashi, F. Roquet, Y. Kitade, T. Tamura, D. Hirano, L. Herraiz-Borreguero, I. Field, M. Hindell, S. Aoki and M. Wakatsuchi (2013)
Antarctic Bottom Water production by intense sea-ice formation in the Cape Darnley Polynya. Nature Geoscience, 6, doi:10.1038/ngeo1738, 235-240. [Press Release]
Aoki, S., Y. Kitade, K. Shimada, K. I. Ohshima, T. Tamura, C. C. Bajish, M. Moteki, and S. R. Rintoul (2013)
Widespread freshening in the seasonal ice zone near 140E off the Adelie Land Coast, Antarctica, from 1994 to 2012. Journal of Geophysical Research, 118, 6046-6063, doi:10.1002/2013JC009009.
Ono, K., K. I. Ohshima, T. Kono, K. Katsumata, I. Yasuda and M. Wakatsuchi (2013)
Distribution of vertical diffusivity in the Bussol' Strait: a mixing hot spot in the North Pacific. Deep Sea Research I, 79, 62-73, doi:10.1016/j.dsr.2013.05.010.
Ono, J., K. I. Ohshima, K. Uchimoto, N. Ebuchi, H. Mitsudera, and H. Yamaguchi (2013)
Particle-tracking simulation for the drift/diffusion of spilled oil in the Sea of Okhotsk with a three-dimensional/high-resolution model. Journal of Oceanography, 69, 413-428, doi:10.1007/s10872-013-0182-8.
Iwamoto,K., K. I. Ohshima, T. Tamura, and S. Nihashi (2013)
Estimation of thin ice thickness from AMSR-E data in the Chukchi Sea. International Journal of Remote Sensing, 34, 468-489.
Tamura, T., G. D. Williams, A. D. Fraser and K. I. Ohshima (2012)
Potential regime shift in decreased sea ice production after the Mertz Glacier calving, Nature Communications, 3:826, doi:10.1038/ncomms1820. [Open Access] [注目のハイライト]
Nakazawa, N., J. Ono, H. Yamaguchi, K. I. Ohshima, A. Kurokawa (2012)
Numerical prediction of spilled oil behavior under sea ice conditions: Modification of the 2011 Model.
Offshore Technology Conference, No. OTC23801,doi:10.4043/23801-MS.
Shimada, K., S. Aoki, K. I. Ohshima, S. R. Rintoul (2012) Influence of Ross Sea Bottom Water changes on the warming and freshening of the Antarctic Bottom Water in the Australian-Antarctic Basin, Ocean Science Discussion, 8, 419-432, doi:10.5194/os-8-419-2012.
Petrich C., H. Eicken, J. Zhang, J. Krieger, Y. Fukamachi, K. I. Ohshima (2012)
Coastal landfast sea ice decay and breakup in northern Alaska: Key processes and seasonal pred iction. Journal of Geophysical Research. 117, C02003, doi:10.1029/2011JC007339.
Nihashi, S., K. I. Ohshima, and N. Kimura (2012)
Creation of a heat and salt flux dataset associated with sea-ice production and melting in the Sea of Okhotsk, Journal of Climate, 25(7), 2261-2278, doi:10.1175/JCLI-D-11-00022.1.
Nakayama, Y., K. I. Ohshima, and Y. Fukamachi (2012)
Enhancement of sea-ice drift due to the dynamical interaction between sea ice and a coastal ocean, Journal of Physical Oceanography, 42, 179-192.
Tamura, T. and K. I. Ohshima (2011)
Mapping of sea ice production in the Arctic coastal polynyas, Journal of Geophysical Research, 116, C07030, doi:10.1029/2010JC006586. (Research Spotlight: Highlighting exciting new research from AGU journals)
Nihashi, S., K. I. Ohshima, and H. Nakasato (2011)
Sea-ice retreat in the Sea of Okhotsk and the ice-ocean albedo feedback effect on it, Journal of Oceanography, 67, doi:10.1007/s10872-011-0056-x, 551-562.
Tamura, T., K. I. Ohshima, S. Nihashi, and H. Hasumi (2011)
Estimation of surface heat/salt fluxes associated with sea ice growth/melt in the Southern Ocean. Scientific Online Letter on the Atmosphere, 7, 17-20, doi:10.2151/sola.2011-005.
Fukamachi, Y., K. I. Ohshima, Y. Mukai, G. Mizuta, and M. Wakatsuchi (2011)
Sea-ice drift characteristics revealed by measurement of acoustic Doppler current profiler and ice-profiling sonar off Hokkaido in the Sea of Okhotsk. Annals of Glaciology, 57, 1-8.
Toyota, T., S. Ono, K. Cho, and K. I. Ohshima (2011)
Retrieval of sea-ice thickness distribution in the Sea of Okhotsk from ALOS/PALSAR backscatter data. Annals of Glaciology, 57, 177-184.
Yamaguchi, H., K. I. Ohshima and N. Nakazawa (2011)
Numerical prediction of spilled oil behavior in the Sea of Okhotsk under sea ice conditions
Offshore Technology Conference, No. OTC22123, doi:10.4043/22123-MS.
Nakanowatari, T., K. I. Ohshima, and S. Nagai (2010)
What determines the maximum sea ice extent in the Sea of Okhotsk?: Importance of ocean thermal condition from the Pacific. Journal of Geophysical Research, 115, C12031, doi:10.1029/2009JC006070.
Kawaguchi, Y., S. Nihashi, H. Mitsudera, and K. I. Ohshima (2010)
Formation mechanism of huge coastal polynyas and its application to Okhotsk Northwestern Polynya. Journal of Physical Oceanography, 40(11), 2451-2465.
Fukamachi, Y., K. I. Ohshima, N. Ebuchi, T. Bando, K. Ono, and M. Sano (2010)
Volume transport in the Soya Strait during 2006-2008. Journal of Oceanography, 66(5), 685-696.
Ohshima, K. I., T. Nakanowatari, S. Riser, and M. Wakatsuchi (2010)
Seasonal variation in the in- and outflow of the Okhotsk Sea with the North Pacific. Deep Sea Research II, 57, doi:10.1016/j.dsr2.2009.12.012, 1247-1256.
中野渡拓也・三寺史夫・本井達夫・大島慶一郎・石川一郎 (2010)
渦解像海洋大循環モデルで再現される北太平洋中層水の50年規模の低塩化. 海と空, 85, 141-150.
Ono, J. and K. I. Ohshima (2010)
Numerical model studies on generation and dissipation of the diurnal coastal-trapped waves over the Sakkalin shelf in the Sea of Okhotsk. Continental Shelf Research, 30, doi:10.1016/j.csr.2009.06.006, 588-597.
Nihashi, S., K. I. Ohshima, T. Tamura, Y. Fukamachi, and S. Saitoh (2009)
Thickness and production of sea ice in the Okhotsk Sea coastal polynyas from AMSR-E. Journal of Geophysical Research, 114, C10025, doi:10.1029/2008JC005222.
Ishida, K. and K. I. Ohshima (2009)
Ice band characteristics of Antarctic seasonal ice zone observed using MOS MESSR images. Atomosphere-Ocean, 47, doi:10.3137/OC300.2009, 169-183.
Toyota, T., K. Nakamura, S. Uto, K. I. Ohshima, and N. Ebuchi (2009)
Retrieval of sea ice thickness distribution in the seasonal ice zone from air-borne L-band SAR. International Journal of Remote Sensing, 30, 3171-3189.
Fukamachi, Y., K. Shirasawa, A. M. Polomoshnov, K. I. Ohshima, E. Kalinin, S. Nihashi, H. Melling, G. Mizuta, M. Wakatsuchia (2009)
Direct observations of sea-ice thickness and brine rejection off Sakhalin in the Sea of Okhotsk, Continental Shelf Research, 1541-1548.
Kusahara, K. and K. I. Ohshima (2009)
Dynamics of the wind-driven sea level variation around Antarctica. Journal of Physical Oceanography, 39, 658-674.
Ebuchi, N., Y. Fukamachi, K. I. Ohshima, and M. Wakatsuchi (2009)
Subinertial and seasonal variations in the Soya Warm Current revealed by HF ocean radars, coastal tide gauges, and bottom-mounted ADCP. Journal of Oceanography, 65, 31-43.
Tamura, T., K. I. Ohshima, and S. Nihashi (2008)
Mapping of sea ice production for Antarctic coastal polynyas,
Geophysical Research Letters, 35, L07606, doi:10.1029/2007GL032903.
Nihashi, S. and K. I. Ohshima (2008)
Bulk heat transfer coefficient in the ice-upper ocean system in the ice melt season derived from concentration-temperature relationship,
Journal of Geophysical Research, 113, C06008, doi:10.1029/2007JC004127.
Fukamachi, Y., I. Tanaka, K. I. Ohshima, N. Ebuchi, G. Mizuta, H. Yoshida, S. Takayanagi, M. Wakatsuchi (2008)
Voume transport of the Soya Warm Current revealed by bottom-mounted ADCP and ocean-radar measurement.
Journal of Oceanography, 64(3), 385-392.
Ono, J., K. I. Ohshima, G. Mizuta, Y. Fukamachi, and M. Wakatsuchi (2008)
Diurnal coastal-trapped waves on the eastern shelf of Sakhalin in the Sea of Okhotsk and their modification by sea ice.
Continental Shelf Research, 28, 697-709.
Ohshima, K. I. and D. Simizu (2008)
Particle tracking experiments on a model of the Okhotsk Sea: toward oil spill simulation.
Journal of Oceanography, 64, 103-114.
大島慶一郎・小野純・清水大輔 (2008)
オホーツク海における漂流物の粒子追跡モデル実験．
沿岸海洋研究, 45, 115-124.
Toyota, T., K. I. Ohshima, N. Ebuchi, K. Nakamura, and S. Uto (2007)
Retrieval of ice thickness distribution in the seasonal ice zone from L-band SAR.
Proceedings of IEEE International Geoscience and Remote Sensing Symposium 2007, Barcelona.
Tamura, T., K. I. Ohshima, T. Markus, D. J. Cavalieri, S. Nihashi, and N. Hirasawa (2007)
Estimation of thin ice thickness and detection of fast ice from SSM/I data in the Antarctic Ocean.
Journal of Atmospheric and Oceanic Technology, 24, 1757-1772.
Nakanowatari T., K. I. Ohshima, M. Wakatsuchi (2007)
Warming and oxygen decrease of intermediate water in the northwestern North Pacific,
originating from the Sea of Okhotsk, 1955-2004.
Geophysical Research Letters, 34, L04602, doi:10.1029/2006GL028243.
Toyota, T., S. Takatsuji, K. Tateyama, K. Naoki, and K. I. Ohshima (2007)
Properties of sea ice and overlying snow in the southern Sea of Okhotsk.
Journal of Oceanography, 63, 393-411.
Ono, K., K. I. Ohshima, T. Kono, M. Itoh, K. Katsumata, Y. N. Volkov, and M. Wakatsuchi (2007)
Water mass exchange and diapycnal mixing at Bussol' Strait revealed by water mass properties.
Journal of Oceanography, 63, 281-291.
Tamura, T., K. I. Ohshima, H. Enomoto, K. Tateyama, A. Muto, S. Ushio, and R. A. Massom (2006)
Estimation of thin sea-ice thickness from NOAA AVHRR data in a polynya off the Wilkes Land coast, East Antarctica.
Annals of Glaciology, 44, 269-274.
Ohshima, K. I., S. Nihashi, E. Hashiya, and T. Watanabe（2006)
Interannual variability of sea ice area in the Sea of Okhotsk: Importance of surface heat flux in fall.
J. Meteor. Soc. Japan, 84, 907-919.
Fukamachi, Y., G. Mizuta, K. I. Ohshima, T. Toyota, N. Kimura, and M. Wakatsuchi (2006)
Sea-ice thickness in the southwestern Sea of Okhotsk revealed by a moored ice-profiling sonar,
Journal of Geophysical Research, 111, C09018, doi:10.1029/2005JC003327.
Simizu, D. and K. I. Ohshima (2006)
A model simulation on the circulation in the Sea of Okhotsk and the East Sakhalin Current,
Journal of Geophysical Research, 111, C05016, doi:10.1029/2005JC002980 　
Ono, J., K. I. Ohshima, G. Mizuta, Y. Fukamachi, and M. Wakatsuch (2006)
Amplification of diurnal tides over Kashevarov Bank in the Sea of Okhotsk and its impact on water mixing and sea ice,
Deep Sea Research, 53, 409-424.
Ebuchi, N., Y. Fukamachi, K. I. Ohshima, K. Shirasawa, M. Ishikawa, T. Takatsuka, T. Daibo and M. Wakatsuchi (2006)
Observation of the Soya Warm Current using HF Ocean Radar,
Journal of Oceanography, 62, 47-61.
Mizuta, G., K. I. Ohshima, Y. Fukamachi, and M. Wakatsuchi (2005)
The variability of the East Sakhalin Current induced by winds over the continental shelf and slope,
Journal of Marine Research, 63, 1017-1039.
Shimada, Y., A. Kubokawa, and K. I. Ohshima (2005)
The influence ofcurrent width variation on the annual mean transport of the East Sakhalin Current:A simple model,
Journal of Oceanography, 61, 913-920.
Ohshima, K. I., M. Wakatsuchi, and S. Saitoh, (2005)
Velocity field of the Oyashio region observed with satellite-tracked surface drifters during 1999-2000,
Journal of Oceanography, 61, 845-855.
Ohshima, K. I., S. C. Riser, and M. Wakatsuchi (2005)
Mixed layer evolution in the Sea of Okhotsk observed with profiling floats and its relation to sea ice formation,
Geophysical Research Letters, 32, L06607, doi:10.1029/2004GL021823.
Ohshima, K. I. and S. Nihashi (2005)
A simplified ice-ocean coupled model for the Antarctic ice melt season,
Journal of Physical Oceanography, 35, 188-201. [Abstract]
Ohshima, K. I., Y. Fukamachi, T. Mutoh, and M. Wakatsuchi (2005)
A generation mechanism for mesoscale eddies in the Kuril Basin of the Okhotsk Sea : baroclinic instability caused by the enhanced tidal mixing,
Journal of Oceanography, 61, 247-260. [Abstract]
Ohshima, K. I., T. Tamura, and S. Nihashi (2005)
Detection of coastal polynyas and ice production in the Antarctic and Okhotsk Seas from SSM/I.
Proceedings of IEEE International Geoscience and Remote Sensing Symposium 2005, Seoul, Korea, 2652-2655.
Nihashi, S., K. I. Ohshima, M. O. Jeffries, and T. Kawamura (2005)
Sea-ice melting processes inferred from ice-upper ocean relationships in the Ross Sea, Antarctica,
Journal of Geophysical Research, 110, C02002, doi:10.1029/2003JC002235.
Ohshima, K. I., D. Simizu, M. Itoh, G. Mizuta, Y. Fukamachi, S. C. Riser, and M. Wakatsuchi (2004)
Sverdrup balance and the cyclonic gyre in the Sea of Okhotsk,
Journal of Physical Oceanography, 34, 513-525. [Abstract]
Ohshima, K. I., and S. Martin (2004)
Introduction to special section: Oceanography of the Okhotsk Sea,
Journal of Geophysical Research, 109, C09S01, doi:10.1029/2004JC002604.
Katsumata, K., K. I. Ohshima, T. Kono, M. Itoh, I. Yasuda, Y. Volkov, and M. Wakatsuchi (2004)
Water exchange and tidal currents through the Bussol Strait revealed by direct current measurements,
Journal of Geophysical Research, 109, C09S06, doi:10.1029/2003JC001864.
Fukamachi, Y., G. Mizuta, K. I. Ohshima, L. D. Talley, S. Riser, and M. Wakatsuchi (2004)
Transport and modification processes of dense shelf water revealed by long-term moorings off Sakhalin in the Sea of Okhotsk,
Journal of Geophysical Research, 109, C09S10, doi:10.1029/2003JC001906.
Toyota, T. T. Kawamura, K. I. Ohshima, H. Shimoda, and M. Wakatsuchi (2004)
Thickness Distribution, Texture and Stratigraphy, and a simple probabilistic Model for Dynamical Thickening of Sea Ice in the Southern Sea of Okhotsk,
Journal of Geophysical Research, 109, C06001, doi:10.1029/2003JC002090. [Abstract]
Mizuta, G., K. I. Ohshima, Y. Fukamachi, M. Itoh, M. Wakatsuchi (2004)
Winter mixed layer and its yearly variability under sea ice in the southwestern part of the Sea of Okhotsk,
Continental Shelf Research, 24, 643-657. [Abstract]
Kusahara, K., K. I. Ohshima, and K. Katsumata (2003)
Two layer model of wind-driven circulation in the Antarctic Ocean,
Polar Meteorol. Glaciol., 17, 36-47.
Mizuta, G., Y. Fukamachi, K. I. Ohshima, M. Wakatsuchi (2003)
Structure and seasonal variability of the East Sakhalin Current
Journal of Physical Oceanography, 33, 2430--2445. [Abstract]
Ohshima, K. I., T. Watanabe, and S. Nihashi (2003)
Surface heat budget of the Sea of Okhotsk during 1987-2001 and the role of sea ice on it,
J. Meteor. Soc. Japan, 81, 653-677. [Abstract]
Itoh, M., K. I. Ohshima, and M. Wakatsuchi (2003)
Distribution and formation of Okhotsk Sea Intermediate Water: An analysis of isopycnal climatology data,
Journal of Geophysical Research, 108, 3258, doi: 10.1029/2002JC001590. [Abstract]
Fukamachi, Y., G. Mizuta, K. I. Ohshima, H. Melling, D. Fissel and M. Wakatsuchi (2003)
Variability of sea-ice draft off Hokkaido in the Sea of Okhotsk revealed by a moored ice-profiling sonar in winter of 1999,
Geophysical Research Letters, 30, doi: 10.1029/2002GL016197.
Toyota, T., K. Baba, E. Hashiya, and K. I. Ohshima (2002)
In-situ ice and meteorological observations in the southern Sea of Okhotsk in 2001 winter: Ice structure, snow on ice, surface temperature, and optical environments,
Polar Meteorol. Glaciol., 16, 116-132.
Ohshima, K. I., M. Wakatsuchi, Y. Fukamachi, and G. Mizuta (2002)
Near-surface circulation and tidal currents of the Okhotsk Sea observed with satellite-tracked drifters,
Journal of Geophysical Research, 107, 3195, doi:10.1029/2001JC001005. [Abstract]
Simizu, D. and K. I. Ohshima (2002)
Barotropic response of the Sea of Okhotsk to wind forcing,
Journal of Oceanography, 58, 851-860.
Nihashi S. and K. I. Ohshima (2001)
Relationship between the sea ice cover in the retreat and advance seasons in the Antarctic Ocean.
Geophysical Research Letter, 28, 3677-3680.
Nihashi, S. and K. I. Ohshima (2001)
Relationship between ice decay and solar heating through open water in the Antarctic sea-ice zone,
Journal of Geophysical Research, 106, 16767-16782.
Ohshima, K. I., G. Mizuta, M. Itoh, Y. Fukamachi, M. Wakatsuchi, T. Watanabe, Y. Nabae, and K. Suehiro (2001)
Winter oceanographic conditions in the southwestern part of the Okhotsk Sea and their relation to sea ice,
J. Oceanogr., 57, 451-460. [Abstract]
Itoh, M. and K. I. Ohshima (2000)
Seasonal variations of water masses and sea level in the southwestern part of the Okhotsk Sea,
J. Oceanogr., 56, 643-654. [Abstract]
Inoue, J., M. Kawashima, K. I. Ohshima, Y. Fujiyoshi, and K. Maruyama (2000)
Wind fields over Funka Bay and their effect on water circulation in the bay,
J. Oceanogr., 56, 507-515. [Abstract]
Ohshima, K. I., T. Kawamura, T. Takizawa, S. Ushio, and T. Miyakawa (2000)
Current variability under landfast sea ice in Lutzow-Holm Bay, Antarctica.
Journal of Geophysical Research, 105, 17,121-17,132. [Abstract]
Ohshima, K. I. (2000)
Effect of landfast sea ice on coastal currents driven by the wind.
Journal of Geophysical Research, 105, 17,133-17,141. [Abstract]
Ushio, S., T. Takizawa, K. I. Ohshima, T. Kawamura (1999)
Ice production and deep-water entrainment in shelf break polynya off Enderby Land, Antarctica.
Journal of Geophysical Research, 104, 29,771-29,780.
Toyota, T., J. Ukita, K. I. Ohshima, M. Wakatsuchi, K. Muramoto (1999)
A measurement of sea ice albedo over the southwestern Okhotsk Sea.
J. Meteor. Soc. Japan, 77, 117-133.
Ishida, K., K. I. Ohshima, T. Yamanouchi, and H. Kanzawa (1999)
MOS-1/1b MESSR observations of the Antarctic sea ice: ice bands and ice streamers.
Journal of Oceanography, 55, 417-426. [Abstract]
Fukamachi, Y., K. I. Ohshima, and T. Ishikawa (1998)
Mesoscale ice features in the summer Marginal Ice Zone off East Queen Maud Land observed from NOAA AVHRR imagery,
Antarct. Res. Ser. 74, Antarctic Physical Processes, Interactions and Variability, edited by M.O. Jeffries, AGU, Washington, D.C., 317-324.
Ohshima, K. I., K. Yoshida, H. Shimoda, M. Wakatsuchi, T. Endoh, and M.Fukuchi, (1998)
Relationship between the upper ocean and sea ice during the Antarctic melting season.
Journal of Geophysical Research, 103, 7601-7616. [Abstract]
Kawamura, T., K. I. Ohshima, T. Takizawa, and S. Ushio (1997)
Physical, structural, and isotopic characteristics and growth processes of fast sea ice in Lutzow-Holm Bay, Antarctica.
Journal of Geophysical Research, 102, 3345-3355.
Ishikawa, T., J. Ukita, K. I. Ohshima, M. Wakatsuchi, T. Yamanouchi,and N.Ono (1996)
Coastal polynyas off East Queen Maud Land observed from NOAA AVHRR data.
Journal of Oceanography, 52, 389-398. [Abstract]
Ohshima, K. I., T. Takizawa, S. Ushio, and T. Kawamura (1996)
Seasonal variations of the Antarctic coastal ocean in the vicinity of Lutzow-Holm Bay.
Journal of Geophysical Research, 101, 20617-20628. [Abstract]
Takizawa, T., K. I. Ohshima, S. Ushio, T. Kawamura and H. Enomoto (1994)
Temperature structure and characteristics appearing on SSM/I images of the Cosmonaut Sea, Antarctica.
Annals of Glaciology, 19, 298-306.
Wakatsuchi, M., K. I. Ohshima, M. Hishida, and M. Naganobu (1994)
Observation of a street of cyclonic eddies in the Indian Ocean sector of the Antarctic Divergence.
Journal of Geophysical Research, 99, 20,417-20,426.
Ohshima, K. I., T. Kawamura, T. Takizawa, and S. Ushio (1994)
Step-like structure in temperature and salinity profiles, observed near icebergs trapped by fast ice, Antarctica.
Journal of Oceanography, 50, 365-372. [Abstract]
Ohshima, K. I. (1994)
The flow system in the Japan Sea caused by a sea-level difference through shallow straits.
Journal of Geophysical Research, 99, 9925-9940 [Abstract]
Kawamura, T., K. I. Ohshima, S. Ushio and T. Takizawa (1993)
Sea ice growth in the Ongul Strait, Antarctica.
Annals of Glaciology, 18, 97-101
Ohshima, K. I., T. Kawamura, T. Takizawa,, S. Ushio, N. Ono and S. Kawaguchi (1993)
Seasonal variations in ocean structure and current in Ongul Strait, Antarctica, 1991.
Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology, 7, 51-59
Takizawa, T., S. Ushio, T. Kawamura, K. I. Ohshima, N. Ono and S. Kawaguchi (1992)
Preliminary results of hydrography under fast ice in Lutzow-Holm Bay.
Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology, 6, 106-125
Ohshima, K. I., N. Ono, T. Takizawa and S. Ushio (1991)
A note on water exchange under fast ice in Lutzow-Holm Bay, Antarctica.
Proceedings of the NIPR Symposium on Polar Meteorology and Glaciology, 74-80
大島慶一郎・三宅秀男 (1990)
北海道南方陸棚域及び噴火湾における風による循環に関する数値的研究.
海と空, 66, 53-66
Wakatsuchi, M. and K. I. Ohshima (1990)
Observations of ice-ocean eddy streets in the Sea of Okhotsk off the Hokkaido coast using radar images.
Journal of Physical Oceanography, 20, 585-594
Ohshima, K. I. and M. Wakatsuchi (1990)
A numerical study of barotropic instability associated with the Soya Warm Current in the Sea of Okhotsk.
Journal of Physical Oceanography, 20, 570-584
Ohshima, K. I. (1987)
On the stability of the Soya Warm Current.
Journal of the Oceanographical Society of Japan, 43, 61-67
Ohshima, K. I. (1987)
Stability of a barotropic jet on a sloping bottom.
Journal of the Oceanographical Society of Japan, 43, 49-60

【著作・解説・その他】

Ito, M., K. I. Ohshima, J. Nishioka, Y. Kusumoto, G. Mizuta and Y. Fukamachi (2015)
Sediment upward dispersion and frazil ice formation by strong windy events in the Sea of Okhotsk observed with ADCP.　-A possible mechanism of iron supply to sea ice-　 Proceedings of 30th International Symposium on Okhotsk Sea and Sea Ice, 183-186.
Ito, M., K. I. Ohshima, Y. Fukamachi, D. Simizu, K. Iwamoto, Y. Matsumura, A. R. Mahoney, and H. Eicken (2014)
A study of formation processes of supercooled water and frazil ice in a coastal polynya. Proceedings of 29th International Symposium on Okhotsk Sea and Sea Ice, 138-141.
岡英太郎, 磯辺篤彦, 市川香, 升本順夫, 須賀利雄, 川合義美, 大島慶一郎, 島田浩二, 羽角博康, 見延庄士郎, 早稲田卓爾, 岩坂直人, 河宮未知生, 伊藤幸彦, 久保田雅久, 中野俊也, 日比谷紀之, 寄高博行 (2013)
海洋学の10年展望(I) ー日本海洋学会将来構想委員会物理サブグループの議論からー　海の研究, 22(6), 191−218.
三谷曜子・大島慶一郎・桜井泰憲 (2013)
小型CTD等を装着した鰭脚類による海洋観測データの取得. 海洋と生物, Aquabiology 204, 35(1), 12-15.
Iwamoto, K., K. I. Ohshima, and T. Tamura (2013)
Mapping of sea ice production in the Arctic Ocean using AMSR-E thin ice thickness algorithm. Proceedings of 28th International Symposium on Okhotsk Sea and Sea Ice, 17-20.
大島慶一郎 (2013)
I-1. オホーツク海の循環と温暖化・流出油. 「オホーツクの生態系とその保全」大泰司紀之・桜井泰憲・大島慶一郎編, 北海道大学出版会, pp3-18.
柏瀬陽彦, 大島慶一郎, 二橋創平 (2012)
オホーツク海における海氷生産量の長期変動. 月刊海洋, 44(7), 410-415.
中野渡拓也, 中村知裕, 内本圭亮, 三寺史夫, 大島慶一郎, 羽角博康 (2012)
近年の地球温暖化に伴うオホーツク海中層水温の昇温メカニズム月刊海洋, 44(8), 466-472.
大島慶一郎 (2012)
第1章オホーツク海の海洋循環・海氷生成と温暖化の影響「環オホーツク海地域の環境と経済」北海道大学出版社, pp13-37.
田村岳史, 清水大輔, 牛尾収輝, 大島慶一郎 (2011)
日本南極地域観測隊の夏期行動中における海氷分布情報の提供システム, 南極資料, 55(3), 260-268.
Kashiwase, H., K. I. Ohshima, and S. Nihashi (2011)
Long-term variations in sea ice production in the Okhotsk Sea. Proceedings of 26th International Symposium on Okhotsk Sea and Sea Ice,
Nakanowatari, T., T. Nakamura, K. Uchimoto, H. Mitsudera, and K. I. Ohshima (2011)
Warming trend in the Okhotsk Sea Intermediate Water in an ice-ocean coupled model. Proceedings of 26th International Symposium on Okhotsk Sea and Sea Ice,
大島慶一郎 (2010)
第25章海洋の観測と潮汐「地球惑星科学入門」北海道大学出版社, pp291-300.
大島慶一郎・中野渡拓也・S. C. Riser・若土正曉 (2010)
オホーツク海・海氷域でのフロート観測, 月刊海洋, 42(11), 643-653.
大島慶一郎 (2010)
海洋深層循環を駆動する南極底層水 -未知の底層水生成域を探る-, 自然と科学の情報誌「ミルシル」, 3(4), 9-11.
大島慶一郎・羽角博康 (2010)
総論:南大洋の深層水形成と海氷過程, 月刊海洋, 号外54, 5-10.
大島慶一郎・深町康・青木茂・清水大輔・田村岳史・牛尾収輝・橋田元・北出裕二郎・若土正曉 (2010)
未知の南極底層水生成域の発見と今後の観測に向けて, －ケープダンレープロジェクト－月刊海洋, 号外54, 12-20.
北出裕二郎・平野大輔・大島慶一郎・深町康 (2010)
海鷹丸により観測されたケープダンレー沖の南極底層水と海洋微細構造の特徴, 月刊海洋, 号外54, 29-36.
田村岳史・大島慶一郎 (2010)
SSM/Iを用いた海氷生産量・熱塩フラックスのグローバルマッピング, 月刊海洋, 号外54, 37-42.
二橋創平・大島慶一郎 (2010)
南極海におけるAMSR-Eデータを用いた薄氷厚推定アルゴリズムの開発と海氷生産量の見積もり, 月刊海洋, 号外54, 43-51.
Yamaguchi, H., Ono J., Ohshima, K.I., Kurokawa, A. (2010)
A system for numerical prediction of spilled oil behavior in the Sea of Okhotsk including ice-covered condition. Proceedings of 25th International Symposium on Okhotsk Sea and Sea Ice, 17-24.
Ohshima, K.I., T. Nakanowatari, S. Nihashi, J. Nishioka, T. Nakatsuka, and M. Wakatsuchi (2009)
Impact of sea ice production　and its recent reduction on overturning and material circulation in the Okhotsk Sea and North Pacific. Report on Amur-Okhotsk Project, No. 6, Research Institute for Humanity and Nature, 21-29.
大島慶一郎 (2009)
環オホーツク海研究の進展, 雪氷研究の系譜－北海道の雪氷から世界の雪氷圏まで－, (社)日本雪氷学会北海道支部, 177－180.
Kawaguchi, Y., S. Nihashi, F. Mitsudera, and K. I. Ohshima (2009)
Formation of broad opening of coastal polynya, Proc. 24th International Symposium on Okhotsk Sea and Sea Ice, Monbetsu, Japan, 88-91.
大島慶一郎 (2009)
オホーツク海と海氷－その特殊性と重要性－　「朝倉世界地理講座－大地と人間の物語－2巻：東北アジア」朝倉書店. pp10-19.
Ohshima, K. I., T. Tamura, Y. Fukamachi, and S. Aoki (2009)
Sea ice production in the polynya and the associated bottom water formation off the Cape Darnley, East Antarctica. Extended abstract of 9th International Conference on Southern Hemisphere Meteorology and Oceanography, February 9-13, 2009, Melbourne, Australia.
Ohshima, K. I., and T. Tamura (2008)
Studies on sea ice and polynya off the Cape Darnley in East Antarctica, using the ALOS PALSAR and passive microwave data. Proceedings of ALOS PI Symposium 2008 Rhodes, Greece, 3-7 November 2008. (CD-ROM)
Ohshima, K. I., T. Nakanowatari, T. Nakatsuka, J. Nishioka, and M. Wakatsuchi (2008)
Changes in the Sea of Okhotsk due to global warming ? Weakening pump function to the North Pacific ? Proceedings of 4th PICES Workshop on "The Okhotsk Sea and adjacent areas", August 27-29, 2008, Tokyo University of Agriculture, Abashiri, Japan.
Nakanowatari, T., H. Mitsudera, T. Motoi, K. I. Ohshima, and I. Ishikawa (2008)
50-yr scale change in the intermediate water temperature in the western North Pacific simulated by an eddy resolving sea-ice coupled OGCM. Proceedings of 4th PICES Workshop on "The Okhotsk Sea and adjacent areas", August 27-29, 2008, Tokyo University of Agriculture, Abashiri, Japan.
大島慶一郎・小野純・小野数也・勝又勝郎 (2008)
オホーツク海の潮流の観測, 月刊海洋, 50, 28-33.
大島慶一郎・中野渡拓也・若土正曉 (2008)
温暖化によるオホーツク海及び北太平洋のオーバーターン弱化, 月刊地球, 30, 127-133.
Toyota, T., K. Nakamura, T. Tamura, K. Cho, and K. I. Ohshima (2007)
Development of sea ice thickness algorithm from PALSAR data, combined with in-situ observations and other satellite data. Proceedings of The First Joint PI symposium of ALOS Data Nodes for ALOS Science Program in Kyoto, Japan, November 19-22, 4 pages (CD-ROM).
大島慶一郎 (2008)
温暖化で変わるオホーツク海　－弱まる北太平洋へのポンプの働き－
北海道大学広報誌リテラポプリ, 34号, 34-35.
大島慶一郎 (2007)
温暖化の高感度域オホーツク海－海氷減少が北太平洋を変える？－
モーリー, No.16, 51-55.
大島慶一郎 (2007)
大気海洋間熱フラックスから見たオホーツク海の海氷 (第2章) 「オホーツク海の気象－大気と海洋の双方向作用－」気象研究ノート
Ohshima, K. I., D. Simizu (2007)
Particle tracking experiments on a model of the Okhotsk Sea: Drifting and spreading of the Amur origin water.
Report on Amur-Okhotsk Project No.4, Research Institute for Humanity and Nature, 7-13.
Ohshima, K. I., T. Nakanowatari, and M. Wakatsuchi (2007)
Decrease of sea ice production in the Okhotsk Sea causes the weakening of overturning in the northwestern North Pacific? Report on Amur-Okhotsk Project No.4, Research Institute for Humanity and Nature, 15-23.
Ohshima, K. I., M. Wakatsuchi, K. Ono, and S. C. Riser (2007)
Seasona variations of the circulation in the Okhotsk Sea and of the water exchange with the North Pacific. Proc. 22nd International Symposium on Okhotsk Sea and Sea Ice. 3-6.
Ono, J., K. I. Ohshima, G. Mizuta, Y. Fukamachi, and M. Wakatsuchi (2007)
Diurnal Coastal-Trapped Waves on the Eastern Shelf of Sakhalin in the Sea of Okhotsk and the effect of sea ice on them. Proc. 22nd International Symposium on Okhotsk Sea and Sea Ice. 142-145.
Fukamachi, Y., I. Tanaka, K. I. Ohshima, N. Ebuchi, G. Mizuta, H. Yoshida and M. Wakatsuchi (2007)
Long-term measurement of the Soya Warm Current by a bottom-mounted Acoustic Doppler Current Profiler. Proc. 22nd International Symposium on Okhotsk Sea and Sea Ice. 134-135.
大島慶一郎・若土正曉, (2007)
オホーツク海国際共同観測プロジェクト，北大千島研究の系譜：千島列島の過去・現在・未来,
北海道大学総合博物館企画展示図録，81-86
大島慶一郎・中野渡拓也・若土正曉, (2006)
温暖化の高感度域オホーツク海：北太平洋へのインパクト．低温科学
大島慶一郎・牛尾収輝・大槻晃久 (2006)
JAREにおける船上目視観測による海氷モニタリングに向けて－国際標準に基づく観測手順の簡略化とその活用例－南極資料, Vol.50-3, 304-316.
Ohshima, K. I., D. Simizu (2006)
Particle trace experiments on a model of the Okhotsk Sea: Toward the prediction for spreading of spilled oil
and Amur contamination. Proc. 21st International Symposium on Okhotsk Sea and Sea Ice. 119-122.
Ohshima, K. I., T. Nakanowatari, S. Nihashi, M. Wakatsuchi, M. Itoh, and S. C. Rise (2006)
Sea ice production in the Okhotsk Sea and its relation to interannual variability of Okhotsk Sea and North Pacific Intermediate Water. Proc. 21st International Symposium on Okhotsk Sea and Sea Ice. 29-32.
Ohshima, K. I. (2005)
Circulation and heat/salt transport in the Sea of Okhotsk and its relation to sea ice, Report on Amur-Okhotsk Project No.3, Proceedings of the International Kyoto Symposium 2005, 23-30.
Toyota, T. , S. Takatsuji, K. Tateyama, M. Nakayama, K. Naoki, and K. I. Ohshima, (2004)
Properties of thick sea ice and overlying snow in the southern Sea of Okhotsk. Proceedings of the 17th IAHR International Symposium on Ice, St. Petersburg, Russia, 406-412.
大島慶一郎 (2003)
南大洋域の観測の重要性.
2002年春季日本気象学会シンポジウム・21世紀の極域科学―今なぜ南極観測なのか,天気, 50, 604-609.
大島慶一郎 (2003)
東樺太海流と海氷
2002年秋季日本気象学会シンポジウム・環オホーツク研究の新しい視点, 天気, 50,503-508.
Ohshima, K. I. and S. Nihashi (2001)
Ice albedo feedback effect on sea ice/ocean coupled system in the Antarctic., Proc. Second
Wadati Conference on Global Change and Polar Climate , Tsukuba, Japan, 114-117.
Ohshima, K. I., T. Watanabe and S. Nihashi (2001)
Heat budget in the Sea of Okhotsk and the role of sea ice on the budget, Proc. Second Wadati Conference on Global Change and Polar Climate, Tsukuba, Japan, 216-219.
Ohshima, K. I., M. Wakatsuchi, Y. Fukamachi, and G. Mizuta (2001)
Near-surface circulation and tidal currents of the Okhotsk Sea observed with the satellite-tracked drifters. Proc.International Symposium on Atmosphere-Ocean-Cryospere Interaction in the Sea of Okhotsk and the Surrounding Environment, Sapporo, Japan, 8-9.
Mizuta, G., Y. Fukamachi, K. I. Ohshima, and M. Wakatsuchi (2001)
Flow field and its seasonal variability off the east coast of Sakhalin in the Sea of Okhotsk. Proc. International Symposium on Atmosphere-Ocean-Cryosphere Interaction in the Sea of Okhotsk and the Surrounding Environment, Sapporo, Japan, 20-21.
Fukamachi, Y., G. Mizuta, K. I. Ohshima, M. Aota, and M. Wakatsuchi (2001)
Mooring measurement of ice thickness off Yubetsu, Hokkaido. Proc. International Symposium on Atmosphere-Ocean Cryospere Interaction in the Sea of Okhotsk and the Surrounding Environment, Sapporo, Japan, 32-33.
Fukamachi, Y., G. Mizuta, K. I. Ohshima, and M. Wakatsuchi (2001)
Estimation of dense shelf water volume transport using long-term mooring data off the east coast of Sakhalin. Proc. International Symposium on Atmosphere-Ocean-Cryosphere Interaction in the Sea of Okhotsk and the Surrounding Environment, Sapporo, Japan, 36-37.
Itoh, M., K. I. Ohshima, and M. Wakatsuchi (2001)
Formation and distribution of Okhotsk Sea Intermediate Water. Proc. International Symposium on Atmosphere-Ocean Cryospere Interaction in the Sea of Okhotsk and the Surrounding Environment, Sapporo, Japan, 42-43.
Ohshima, K. I., T. Watanabe, and S. Nihashi (2001)
Surface heat budget in the Sea of Okhotsk and its relation to the production and transport of the sea ice. International Symposium on Atmosphere-Ocean-Cryosphere Interaction in the Sea of Okhotsk and the Surrounding Environment, Sapporo, Japan, 48-49.
Itoh, M., K. I. Ohshima, and M. Wakatsuchi (2001)
Formation and distribution of Okhotsk Sea intermediate water. Proc. 16th International Symposium on Okhotsk Sea and Sea Ice. 192-197
Mizuta, G., Y. Fukamachi, K. I. Ohshima, and M. Wakatsuchi (2001)
Southward Curreat off the east coast of Sakhalin in the Sea of Okhotsk observed from 1998 to 2000. Proc. 16th International Symposium on Okhotsk Sea and Sea Ice, 198-205.
Fukamachi, Y., G. Mizuta, K. I. Ohshima, and M. Wakatsuchi (2001)
Estimation of dense shelf water bolume transport using long-term mooring data off the east coast of Sakhalin. Proc. 16th International Symposium on Okhotsk Sea and Sea Ice. 206-211.
大島慶一郎・豊田威信・二橋創平 (1999)
オホーツク海の海氷変動と熱塩収支過程.
月刊海洋., Vol.31-9, 595-600.
Fukamachi, Y., G. Mizuta, K. I. Ohshima, M. Itoh, M. Wakatsuchi, and M. Aota (1999)
Mooring measurements off Shiretoko Peninsula, Hokkaido in 1997-1998.
PICES Scientific Report, No. 12, 153-158.
Ohshima, K. I. (1998)
The effects of landfast sea ice on coastal currents driven by the wind,
Proceedings of International Workshop on Exchange Processes between the Arctic Shelves and Basins, Yokohama Japan, 44-46.
大島慶一郎, (1997)
極域・亜極域の沿岸流の変動の研究、
1996年度日本海洋学会岡田賞受賞記念講演海の研究, Vol.6-2, 111-120.
河村俊行・滝沢隆俊・大島慶一郎・牛尾収輝 (1997)
海洋・海氷観測．
南極資料, Vol.41-1, 395-414.
河村俊行・滝沢隆俊・大島慶一郎・牛尾収輝 (1997)
リュツォ・ホルム湾の海氷の特性と成長過程.
南極資料, Vol.41-1, 367-384.
下田春人・遠藤辰雄・村本健一郎・小野延男・滝沢隆俊・牛尾収輝・河村俊行・大島慶一郎 (1997)
船上ビデオ撮影による南極沿岸域の海氷状況.
南極資料, Vol.41-1, 355-366.
宮川卓也・大島慶一郎 (1997)
南極クイーンモードランド沖の海氷の漂流特性.
南極資料, Vol.41-1, 347-354.
滝沢隆俊・大島慶一郎・牛尾収輝・河村俊行・榎本浩之 (1997)
コスモノート・ポリニヤ水域の水温構造とSSM/I画像から見たポリニヤの特徴.
南極資料, Vol.41-1, 335-346.
牛尾収輝・滝沢隆俊・大島慶一郎・河村俊行 (1997)
リュツォ・ホルム湾沿岸ポリニヤ域における海氷生産と対流混合.
南極資料., Vol.41-1, 329-334.
大島慶一郎・滝沢隆俊・牛尾収輝・河村俊行 (1997)
南極沿岸海洋場の季節サイクル.
南極資料, Vol.41-1, 311-328.
若土正曉・大島慶一郎・竹内謙介 (1996)
オホーツク海研究プロジェクトの提案.
月刊海洋., Vol.28-9, 579-582.
Ohshima, K. I. (1996)
Inflow-outflow system of the Japan Sea.
Proceedings of the CREAMS Workshop., Vol.4, 133-136.
Kawamura, T., T. Takizawa, K. I. Ohshima, and S. Ushio (1995)
Upward growth of Antarctic sea ice during summer and autumn.
Pre. Wadati Conference on Global Change and the Polar Climate,, 150-153.
Ohshima, K. I., T. Takizawa, T. Kawamura, and S. Ushio (1995)
Seasonal cycle of the Antarctic coastal ocean - observations and a numerical experiment -.
Pre. Wadati Conference on Global Change and the Polar Climate, 158-161.
Kawamura, T., T. Takizawa, K. I. Ohshima and S. Ushio (1995)
Data of sea-ice cores obtained in Lutzow Holm Bay from 1990 to 1992 (JARE-31,-32) in the period of Japanese Antarctic Climate Research.
JARE Data Rep., 204 (glaciology 24), 42p.
Ohshima, K. I. and T. Kawamura (1994)
Oceanographic data in Lutzow Holm Bay of the Antarctic Climate Research Program from January 1991 to February 1992 (JARE-32).
JARE Data Rep., 198 (Oceanography 15), 35p.
牛尾収輝・滝沢隆俊・大島慶一郎・河村俊行 (1993)
昭和基地沖に形成される沿岸ポリニアの水温構造.
南極資料, Vol.37-3, 252-259
大島慶一郎 (1993)
南極海洋場における季節サイクル－最近の現場海洋観測の成果より－.
月刊海洋, Vol.25-N9, 574-581
Ohshima, K. I., T. Takizawa, T. Kawamura and S. Ushio (1993)
Seasonal variations of the flow and oceanic structure under fast ice in Lutzow-Holm Bay, Antarctica.
Proceedings of International Symposium on ISY Polar Ice Excent, 87-90
Takizawa, T., K. I. Ohshima, S. Ushio, T. Kawamura and H. Enomoto (1993)
Thermal structure of the Cosmonaut Polynya region in the Antarctic.
Proceedings of International Symposium on ISY Polar Ice Excent,, 82-86
Wakatsuchi, M., K. I. Ohshima, K. Tanaka and K. Noguchi (1993)
Observations of large scale ocean eddies along the Antarctic divergence.
Proceedings of the Fourth International Conference on Southern Hemisphere Meteorology and Oceanography, Vol.4, 501-502
Ohshima, K. I., T. Kawamura, T. Takizawa, and S. Ushio (1993)
Seasonal variations of the flow and oceanic structure under fast ice in Lutzow-Holm Bay, Antarctica.
Proceedings of the Fourth International Conference on Southern Hemisphere Meteorology and Oceanography, Vol.4 467-468.

北海道大学低温科学研究所大島慶一郎

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北海道大学低温科学研究所 大島慶一郎

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北海道大学低温科学研究所大島慶一郎