Dr. Naoto
Ebuchi, Professor
Contact:
Institute
of Low Temperature Science
Hokkaido University
N19 W8, Kita-ku, Sapporo 060-0819, Japan
Phone: +81-11-706-5470
Fax: +81-11-706-7142
Email: ebuchi "a" lowtem.hokudai.ac.jp
Research
Interests:
- Active microwave remote
sensing of the ocean surface
- Observation of marine surface
winds by spaceborne microwave radiometers and scatterometers
- Observation of sea surface
salinity using spaceborne microwave radiometers
- Seasonal and interannual
variations of the surface circulations in the Sea of Okhotsk
- HF radar observations of the
Soya Warm Current
- Remote sensing of sea ice
Publications:
·
Kobashi,
F., Y. Kurihara, N. Ebuchi, and M. Kachi, 2024: Spatial resolution of sea
surface temperature observed by AMSR2 on GCOM-W satellite. Int. J. Remote
Sens., 45 (18), 6675-6690. https://doi.org/10.1080/01431161.2024.2391590.
- Ebuchi, N., Y. Fukamachi, K.
I. Ohshima, H. Mitsudera, J. Nishioka, T. Takatsuka, K. Ono, M. Ishikawa,
T. Daibo, K. Shirasawa, and M. Wakatsuchi, 2024: Long-term observation of the Soya Warm
Current using HF ocean radars. J. Oceanogr., 80(4), 239-249.
https://doi.org/10.1007/s10872-024-00724-w.
- Nishioka, J., T. Hirawake, D.
Nomura, Y. Yamashita, K. Ono, A. Murayama, A. Shcherbinin, Y. N. Volkov,
H. Mitsudera, N. Ebuchi, M. Wakatsuchi, and I. Yasuda, 2021: Iron and
nutrient dynamics along the East Kamchatka Current, western Bering Sea
Basin and Gulf of Anadyr. Prog. Oceanogr., 198，102662.
https://doi.org/10.1016/j.pocean.2021.102662.
- Fang, X., Y. Isoda, I. Kudo,
T. Aramaki, K. Imai, and N. Ebuchi, 2020: Behavior of water mass beneath
the Tsushima Warm Current. Water, 12(8): 2184,
doi:10.3390/w12082184.
- Zhang, W., N. Ebuchi, Y.
Fukamachi, F. Cheng, K. I. Ohshima, B. Emery, T. Toyota, H. Abe, and K.
Shirasawa, 2020: Sea ice observation with ocean HF radar. IEEE Trans.
Geosci. Remote Sens., 58(1), 378-390, doi:
10.1109/TGRS.2019.2936576.
- Roarty H., T. Cook, L. Hazard,
D. George, J. Harlan, S. Cosoli, L. Wyatt, E. Alvarez Fanjul, E. Terrill,
M. Otero, J. Largier, S. Glenn, N. Ebuchi, B. Whitehouse, K. Bartlett, J.
Mader, A. Rubio, L. Corgnati, C. Mantovani, A. Griffa, E. Reyes, P.
Lorente, X. Flores-Vidal, K. J. Saavedra-Matta, P. Rogowski, S.
Prukpitikul, S.-H. Lee, J.-W. Lai, C.-A. Guerin, J. Sanchez, B. Hansen,
and S. Grilli, 2019: The Global High Frequency Radar Network. Front. Mar. Sci., 6:164. doi: 10.3389/fmars.
2019.00164.
- Abe, H., N. Ebuchi, H. Ueno,
H. Ishiyama, and Y. Matsumura, 2019: Aquarius reveals eddy stirring after
a heavy precipitation event in the subtropical North Pacific. J. Oceanogr., 75(1), 37-50, doi: 10.1007/s10872-018-0482-0.
- Ebuchi, N., 2017: Evaluation
of marine surface wind speed observed by AMSR2 on GCOM-W. IEEE J. Sel. Topics Appl. Earth Observ.
Remote Sens., 10(9),
3955-3962, doi: 10.1109/JSTARS.2017.2685432.
- 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. J. Phys. Oceanogr., 47(5), 999-1019, doi:
10.1175/JPO-D-16-0210.1.
- Abe, H., Y. Tanimoto, T.
Hasegawa, and N. Ebuchi, 2016: Simultaneous formation of the oceanic
Rossby waves in the eastern North and South Pacific during the ENSO
events. J. Phys. Oceanogr., 46(11), 3397-3414, doi:
10.1175/JPO-D-15-0118.1.
- Zhang, W., N. Ebuchi, Y.
Fukamachi, and Y. Yoshikawa, 2016: Estimation of wind drift current in the
Soya Strait. J. Oceanogr., 72(2), 299-311, doi:
10.1007/s10872-015-0333-1.
- Toyoda, T., Y. Fujii, T.
Kuragano, J. P. Matthews, H. Abe, and N. Ebuchi, N. Usui, K. Ogawa, and M.
Kamachi, 2015: Improvements to a global ocean data assimilation system
through the incorporation of Aquarius surface salinity data. Q. J. R. Meteorol. Soc., 141, 2750-2759, doi:
10.1002/qj.2561.
- Abe, H., and N. Ebuchi, 2014:
Evaluation of sea surface salinity observed by Aquarius. J. Geophys. Res., 119 (C11), 8109-8121, doi:
10.1002/2014JC010094.
- Kuma, K., R. Sasayama, N.
Hioki, Y. Morita, Y. Isoda, T. Hirawake, K. Imai, T. Aramaki, T. Nakamura,
J. Nishioka, and N. Ebuchi, 2014: Chemical evidence for the origin of the
Cold Water Belt along the northeastern coast of Hokkaido. J. Oceanogr., 70(4), 377-387, doi: 10.1007s10872-014-0239-3.
- Abe, H., Y. Tanimoto, T.
Hasegawa, N. Ebuchi, and K. Hanawa, 2014: Oceanic Rossby waves induced by
the meridional shift of the ITCZ in association with the ENSO events. J. Oceanogr., 70(2), 165-174, doi: 10.1007/s10872-014-0220-1.
- Nishioka, J., T. Nakatsuka, Y.
W. Watanabe, I. Yasuda, K. Kuma, H. Ogawa, N. Ebuchi, A. Scherbinin, Yu.
N. Volkov, T. Shiraiwa, and M. Wakatsuchi, 2013: Intensive mixing along an
Island chain controls oceanic biogeochemical cycles. Global Biogeochem. Cycles, 27(3), 920-929, doi: 10.1002/gbc.20088.
- 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. J. Ocenoagr., 69(4), 413-428, doi: 10.1007/s10872-013-0182-8.
- Shirasawa, K., N. Ebuchi, M.
Lepparanta, and T. Takatsuka, 2013: Ice-edge detection from Japanese
C-band radar and high-frequency radar coastal stations. Ann. Glaciol., 54(62), 59-64, doi: 10.3189/2013AoG62A007.
- Abe, H., K. Hanawa, and N.
Ebuchi, 2013: Interannual variations in the Hawaiian Lee Countercurrent. J. Oceanogr., 69(2), 191-202, doi: 10.1007/s10872-012-0166-0.
- Ebuchi, N., 2012: Self-consistency
of marine surface wind vectors observed by ASCAT. IEEE Trans. Geosci. Remote Sens., 50(7), 2473-2480, doi: 10.1109/ TGRS.2011.2160648.
- Katsaros, K. B., A. Bentamy,
M. Bourassa, N. Ebuchi, J. Gower, W. T. Liu, and S. Vignudelli, 2011:
Climate data issues from an oceanographic remote sensing perspective. In “Remote Sensing of the Changing Ocean,”
ed. by D. L. Tang, Springer, 7-32.
- Nihashi, S., N. Ebuchi, Y.
Fukamachi, and S. Takahashi, 2011: Characteristics of sea ice in the
Okhotsk coastal polynyas revealed from satellites, ice-profiling sonar,
and digital camera observations. Ann.
Glaciol., 52(57), 133-139,
doi:10.3189/172756411795931624.
- Fukamachi, Y., K.I. Ohshima,
N. Ebuchi, T. Bando, K. Ono, and M. Sano, 2010: Volume transport in the
Soya Strait during 2006-2008. J.
Oceanogr., 66(5), 685-696,
doi: 10.1007/s10872-008-0031-3.
- Matsuda, J., H. Mitsudera, T.
Nakamura, K. Uchimoto, T. Nakanowatari, and N. Ebuchi, 2009: Wind and
buoyancy driven intermediate-layer overturning in the Sea of Okhotsk. Deep-Sea Res. I, 56, 1401-1418,
doi:10.1016/j.dsr.2009.04.014.
- Toyota, T., K. Nakamura, S.
Uto, K. I. Ohshima, N. Ebuchi, 2009: Retrieval of sea ice thickness
distribution in the seasonal ice zone from air-borne L-band SAR. Int’nl J. Remote Sens., 30(11-12), 3171-3189, doi:
10.1080/01431160802558790.
- Ebuchi, N., 2009: Evaluation
of wind speed observed by AMSR using data from ocean buoys and SeaWinds. J. Remote Sens. Soc. Jpn., 29(1), 174-178, doi:
10.11440/rssj.29.174.
- Ebuchi, N., Y. Fukamachi, K.
I. Ohshima, and M. Wakatsuchi, 2009: Subinertial and seasonal and
variations in the Soya Warm Current revealed by HF radars, coastal tide
gauges, and bottom-mounted ADCP. J.
Oceanogr., 65(1), 31-43,
doi: 10.1007/s10872-009-0003-2.
- Fukamachi, Y., I. Tanaka, K.
I. Ohshima, N. Ebuchi, G. Mizuta, H. Yoshida, and M. Wakatsuchi, 2008:
Volume transport of the Soya Warm Current revealed by bottom-mounted ADCP
and ocean-radar measurement. J.
Oceanogr., 64(3), 385-392,
doi: 10.1007/s10872-008-0031-3.
- Uchimoto, K., H. Mitsudera, N.
Ebuchi, and Y. Miyazawa, 2007: Clockwise eddy caused by the Soya Warm
Current in an OGCM. J. Oceanogr.,
63(3), 379-391, doi:
10.1007/s10872-007-0036-3.
- Konda, M., A. Shibata, N.
Ebuchi, and K. Arai, 2006: An evaluation of the effect of the relative
wind direction on the measurement of the wind and the instantaneous latent
heat flux by Advanced Microwave Scanning Radiometer. J. Oceanogr., 62(3),
395-404, doi: 10.1007/s10872-006-0063-5.
- Ebuchi, N., 2006: Evaluation
of marine surface winds observed by SeaWinds and AMSR on ADEOS-II. J. Oceanogr., 62(3), 293-301, doi: 10.1007/s10872-006-0054-6.
- Ebuchi, N., 2006: Seasonal and
interannual variations in the East Sakhalin Current revealed by the
TOPEX/POSEIDON altimeter data. J.
Oceanogr., 62(2), 171-183,
doi: 10.1007/s10872-006-0042-x.
- 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. J. Oceanogr., 62(1), 47-61, doi:
10.1007/s10872-006-0031-0.
- Suzuki, N., N. Ebuchi, C.
Zhao, Y. Sugimori, T. Osawa, and T. Moriyama, 2004: Study for estimation
of air-sea CO2 gas transfer by wave breaking model using satellite data
-Estimation of the friction velocity considering wave effect-, Intnl J. Remote Sens. Earth Sci., 1, 50-57.
- Ebuchi, N., and K. Hanawa,
2003: Influences of mesoscale eddies on variations of the Kuroshio axis. J. Oceanogr., 59(1), 25-36, doi: 10.1023/A:1022856122033.
- Ebuchi, N., H. C. Graber, and
M. J. Caruso, 2002: Evaluation of wind vectors observed by
QuikSCAT/SeaWinds using ocean buoy data. J. Atmos. Oceanic Tech., 19(12),
2049-2062, doi: 10.1175/1520-0426(2002).
- Suzuki, N., N. Ebuchi, I.
Watabe, and Y. Sugimori, 2002: Study of the relationship between
non-dimensional roughness length and wave age, effected by wave
directionality. Proc. Indian Acad.
Sci. (Earth Planet. Sci) , 111(3),
305-313.
- Ebuchi, N., and S. Kizu, 2002:
Probability distribution of surface wave slope derived using sun glitter
images from Geostationary Meteorological Satellite and surface vector
winds from scatterometers. J.
Oceanogr., 58(3), 477-486,
doi: 10.1023/A:1021213331788.
- Toba, Y., S. D. Smith, and N.
Ebuchi, 2001: Chapter 2. Historical drag expressions. In “Wind Stress over the Ocean,” eds.
I.S.F. Jones and Y. Toba, Cambridge Univ. Press, 35-53
- Ebuchi, N., and K. Hanawa,
2001: Trajectory of mesoscale eddies in the Kuroshio recirculation region.
J. Oceanogr., 57(4), 471-480, doi:
10.1023/A:1021293822277.
- 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, doi: 10.1023/A:1011192725800.
- Ebuchi, N., 2000: Evaluation
of NSCAT-2 wind vectors by using statistical distribution of wind speeds
and directions. J. Oceanogr., 56(2), 161-172, doi:
10.1023/A:1011183029009.
- Ebuchi, N., and K. Hanawa,
2000: Mesoscale eddies observed by TOLEXADCP and TOPEX/POSEIDON altimeter
in the Kuroshio Recirculation Region south of Japan. J. Oceanogr., 56(1),
43-57, doi: 10.1023/A:1011110507628.
- Ebuchi, N., 1999: Relationship
between directional distribution of scatterometer-derived winds and errors
in geophysical model functions. J.
Adv. Mar. Sci. Tech. Soc., 5(1&2),
19-30, doi: 10.14928/amstec.5.0_19_30.
- Ebuchi, N., 1999: Growth of
wind waves with fetch in the Sea of Japan under winter monsoon
investigated using data from satellite altimeters and scatterometer. J. Oceanogr., 55(5), 575-584, doi: 10.1023/A:1007836701387.
- Ebuchi, N., 1999: Statistical
distribution of wind speeds and directions observed by ADEOS/NSCAT. J. Geophys. Res., 104(C5), 11,393-11,403, doi:
10.1029/98JC02061.
- Suzuki, N., N. Ebuchi, J.
Suwa, and Y. Sugimori, 1998: Relationship between non-dimensional
roughness length and wave age investigated using tower-based measurements.
J. Adv. Mar. Sci. Tech. Soc., 4(2), 217-224, doi:
10.14928/amstec.4.2_217.
- Ebuchi, N., and H. C. Graber,
1998: Directivity of wind vectors derived from the ERS-1/AMI
Scatterometer. J. Geophys. Res.,
103(C5), 7787-7797, doi:
10.1029/97JC02727.
- Ebuchi, N., 1997: Statistical
distribution of wind speeds and directions contained in the Preliminary
NSCAT Science Data Products. J. Adv.
Mar. Sci. Tech. Soc., 3(2),
141-156, doi: 10.14928/amstec.3.2_141.
- Ebuchi, N., 1997: Sea surface
temperature dependence of C-band radar cross sections observed by
ERS-1/AMI scatterometer. J. Adv.
Mar. Sci. Tech. Soc., 3(2),
157-168, doi: 10.14928/amstec.3.2_157.
- Ishizaka, J., I. Asanuma, N.
Ebuchi, H. Fukushima, H. Kawamura, K. Kawasaki, M. Kishino, M. Kubota, H.
Masuko, S. Matsumura, S. Saitoh, Y. Senga, M. Shimanuki, N. Tomii, and M.
Utashima, 1997: Time series of physical and optical parameters off
Shimane, Japan, during fall of 1993: First observation by moored optical
buoy system for ADEOS data verification. J. Oceanogr., 53(3),
245-258.
- Toba, Y., I. S. F. Jones, N.
Ebuchi, and H. Kawamura, 1996: The role of gustiness in determining the
aerodynamic roughness of the sea surface. In "The Air-Sea Interface," eds. M.A. Donelan, W.H. Hui and
W.J. Plant, RSMAS, University of Miami, Miami, 407-412.
- Ebuchi, N., and K. Hanawa,
1996: Comparison of sea surface heights observed by TOPEX altimeter with
sea level data at Chichijima. J.
Oceanogr., 52(3), 259-273,
doi: 10.1007/BF02235923.
- Ebuchi, N., and K. Hanawa,
1995: Comparison of surface current variations observed by TOPEX altimeter
with TOLEX-ADCP data. J. Oceanogr.,
51(3), 351-362, doi:
10.1007/BF02285171.
- Kawamura, H., S. Kizu, F.
Sakaida, N. Ebuchi, and Y. Toba, 1994: Study on air-sea interactions in
the OMLET (Ocean Mixed Layer ExperimenT) area using satellite remote
sensing. In "Remote Sensing of
the Oceans," eds. I.S.F. Jones, Y. Sugimori and R.W. Stewart,
Seibutsu Kenkyusha, Tokyo, 263-270.
- Ebuchi, N., and H. Kawamura,
1994: Validation of wind speeds and significant wave heights observed by
TOPEX altimeter around Japan. J.
Oceanogr., 50(4), 479-487,
doi: 10.1007/BF02234969.
- Kawamura, H., S. Kizu, F.
Sakaida, and N. Ebuchi, 1993: Validation results of the satellite-derived
parameters for the oceanography in the north Western Pacific Ocean. In
"Environment '93, Symposium on
Remote Sensing in Environmental Research and Global Change," eds.
M. Fung and A. Liu, The Hong Kong Univ. of Sci. & Tech., 232-244.
- Ebuchi, N., H. Kawamura, and
Y. Toba, 1993: Bursting phenomena in the turbulent boundary layer beneath
the laboratory wind-wave surface. In "Natural Physical Sources of Underwater Sound," ed. B.
Kerman, Kluwer Acad. Pub., 263-276.
- Ebuchi, N., H. Kawamura, and
Y. Toba, 1993: Physical processes of microwave backscattering from
laboratory wind-wave surfaces. J.
Geophys. Res., 98(C8),
14,669-14,681, doi: 10.1029/93JC00974.
- Toba, Y., H. Kawamura, and N.
Ebuchi, 1992: Strong coupling of wind and wind waves. In "Breaking Waves," eds. M.L.
Banner and R.H.J. Grimshaw, Springer-Verlag, 165-171.
- Ebuchi, N., H. Kawamura, and
Y. Toba, 1992: Microwave backscattering from laboratory wind-wave surfaces
and its relation to wave breaking with bubble entrainment. In "Breaking Waves," eds. M.L.
Banner and R.H.J. Grimshaw, Springer-Verlag, 103-108.
- Ebuchi, N., H. Kawamura, and
Y. Toba, 1992: Statistical properties of microwave backscattering from
laboratory wind-wave surfaces. J.
Oceanogr., 48(2), 139-154,
doi: 10.1007/BF02239002.
- Ebuchi, N., Y. Toba, and H.
Kawamura, 1992: Statistical study on the local equilibrium between wind
and wind waves by using data from ocean data buoy stations. J. Oceanogr., 48(1), 77-92, doi: 10.1007/BF02234033.
- Ebuchi, N., H. Kawamura, and
Y. Toba, 1992: Growth of wind waves with fetch observed by the GEOSAT
altimeter in the Japan Sea under winter monsoon. J. Geophys. Res., 97(C1),
809-819, doi: 10.1029/91JC02452.
- Toba, Y., and N. Ebuchi, 1991:
Sea-surface roughness length fluctuating in concert with wind and waves. J. Oceanogr. Soc. Japan, 47(3), 63-79, doi:
10.1007/BF02301483.
- Ebuchi, N., Y. Toba, and H.
Kawamura, 1990: On the wave dependence of sea-surface wind stress. J. Oceanogr. Soc. Japan, 46(4), 177-183, doi:
10.1007/BF02125578.
- Toba, Y., N. Iida, H.
Kawamura, N. Ebuchi, and I. S. F. Jones, 1990: Wave dependence of
sea-surface wind stress. J. Phys.
Oceanogr., 20(5), 705-721,
doi: 10.1175/1520-0485(1990)020.
- Ebuchi, N., H. Kawamura, and
Y. Toba, 1987: Fine structure of laboratory wind-wave surfaces studied
using an optical method. Boundary-Layer
Meteorol., 39(1), 133-151,
doi: 10.1007/BF00121871.