Physical Oceanographer
Postdoctoral fellow
Institute of Low Temperature Science Hokkaido University

Kita-19, Nishi-8, Kitaku, Sapporo 060-0819, Japan.
Phone: +81-11-706-5483, Fax: +81-11-706-7362
Research Gate page: Vigan Mensah on ResearchGate

Research Interests

My main research interest is on large scale oceanographic currents and hydrographic properties, with a focus on ocean temporal variability and its link with atmospheric changes. My current research in Hokkaido University is about the variability of the Okhotsk Sea water properties and circulation. A first paper on the seasonal variations in the Kuril Basin has just been published, and I am enthusiastic about exploring further aspects of the temporal variability of the Sea of Okhotsk, which is an essential component of the North Pacific overturning. I work essentially on ocean data and satellite observations and actively participated in various research cruises until last year. My research approach is to optimize to the best of my abilities the quality of the data observations before starting the analysis. This lead me to work on both technology-oriented and science-based manuscripts since I have started doing research.

Professional Experience:

Postdoctoral fellow, Institute of Low Temperature Science, Hokkaido University (2017-Present)
Postdoctoral fellow, Institute of Oceanography, National Taiwan University (2016-2017)
Marine Scientist, DHI Water & Environment Pte Ltd, Singapore (2008-2011)
Part-time lecturer, ENSTA Bretagne (former ENSIETA), Brest, France (2005-2008)
Hydrographic data expert, SHOM (French Navy Hydrographic and Oceanographic Service), France (2004-2008)
Hydrographic surveyor, SHOM (French Navy Hydrographic and Oceanographic Service), France (2004)
Radar operator and analyst, French Navy, France (1998-2003)


Ph.D. in Physical Oceanography, Institute of Oceanography, National Taiwan University (2011-2015)

M.Sc. Environmental Engineering, ENSTA Bretagne (former ENSIETA), Brest, France (2005-2007)


Vei Chow Juan Best Ph.D. Thesis Award of the Taiwan Geological Society (2016)
Best graduate student's poster of the Taiwan Oceanographic Society (2013)

Refereed Publications:

Mensah V., K. I. Ohshima, T. Nakanowatari, S. Riser. (2019): Seasonal changes of water mass, circulation and dynamic response in the Kuril Basin of the Sea of Okhotsk.Deep Sea Research Part I, in press, doi:10.1016/j.dsr.2019.01.012.

Mensah, V., F. Roquet, L. Siegelman-Charbit, B. Picard, E. Pauthenet, and C. Guinet. (2018): A correction for the thermal mass-induced errors of CTD tags mounted on marine mammals. J. Atmos. Oceanic Technol., 35, 1237-1252,

Chang, M.-H., Jan, S., Mensah, V., Andres, M., Rainville, L., Yang, Y. J., et al. (2018). Zonal migration and transport variations of the Kuroshio eastof Taiwan induced by eddy impingements. Deep-Sea Research Part I, 131,1-15.

Jan, S., Mensah, V., Andres, M., Chang, M.-H., & Yang, Y. J. (2017). Eddy-Kuroshio interactions: Local and remote effects. Journal of GeophysicalResearch: Oceans, 122, 9744-9764.

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 Sci., 13, 56-65,

Andres, M., V. Mensah, S. Jan, M.-H. Chang, Y.-J. Yang, C.M. Lee, B. Ma, T.B. Sanford. (2017). Downstream evolution of the Kuroshio's time varying transport and velocity structure, Journal of Geophysical Research Oceans, 122, doi:10.1002/2016JC012519.

Mensah, V., M. Andres, R-C. Lien, B. Ma, C. Lee. (2016): Combining observations from multiple platforms across the Kuroshio northeast of Luzon: a highlight on PIESs data, J. Atmos. Oceanic Technol., 33, 2185-2203, doi: 10.1175/JTECH-D-16-0095.1.

Mensah, V., S. Jan, M-H. Chang, Y-J. Yang. (2015): Intraseasonal to Seasonal Variability of the Intermediate Water along the Kuroshio path east of Taiwan, J. Geophys. Res. Ocean, 120, 5473-5489, 2015JC010768.

Jan, S., Y. J. Yang, J. Wang, V. Mensah, T.-H. Kuo, M.-D. Chiou, C.-S. Chern, M.-H. Chang, and H. Chien. (2015): Large variability of the Kuroshio at 23.75 N east of Taiwan. J. Geophys. Res. Oceans, 120, 1825-1840, doi:10.1002/2014JC010614. (Note: AGU's research spotlight).

Tsai, C.-J., M. Andres, S. Jan, V. Mensah, T. B. Sanford, R-C. Lien, and C. M. Lee. (2015): Eddy-Kuroshio interaction processes revealed by mooring observations off Taiwan and Luzon. Geophys. Res. Lett, 42, 8098-8105, doi:10.1002/2015GL065814.

Lien, R-C., B. Ma, C. Lee, T. B. Sanford, V. Mensah, L. R. Centurioni, B. D. Cornuelle, G. Gopalakrishnan, J. L. McClean, A. L. Gordon, M-H. Chang, S. R. Jayne, Y-J. Yang. (2015): The Kuroshio and Luzon Undercurrent East of Luzon Island, Oceanography, 28(4):54-63,

Andres, M., S. Jan, T. B. Sanford, V. Mensah, L. R. Centurioni, J. W. Book. (2015): Mean Structure and Variability of the Kuroshio from Northeastern Taiwan to Southwestern Japan, Oceanography, 28(4):84-95,

Yang Y. J., S. Jan, M.-H. Chang , J. Wang, V. Mensah, T.-H. Kuo, C.-J. Tsai, C.-Y. Lee, M. Andres, L. R. Centurioni, Y.-H. Tseng, W.-D. Liang, and J.-W. Lai. (2015): Mean Structure and fluctuation of the Kuroshio east of Taiwan from in-situ and remote observations, Oceanography, 28(4):64-73,

Mensah, V., S. Jan, M-D. Chiou, T-H. Kuo, R-C Lien. (2014): Evolution of the Kuroshio Tropical Water from the Luzon Strait to the east of Taiwan, Deep Sea Research Part I: Oceanographic Research Papers, Vol. 86, p 68-81, ISSN 0967-0637,

Mensah, V., M. Le Menn, Y. Morel. (2009): Thermal Mass Correction for the Evaluation of Salinity. J. Atmos. Oceanic. Technol., 26, 665-672.
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