Application Laboratory     JAMSTEC        2014.04.01
Distribution of FRA-JCOPE2 reanalysis

By assimilating most available observation data into the JCOPE2 ocean forecast system, Application Laboratory has created the reanalysis data (FRA-JCOPE2) with horizontal high resolution of 1/12 deg. to describe the oceanic variability associated with the Kuroshio-Kuroshio Extension, the Oyashio, and the mesoscale eddies from January 1993 to present time (Miyazawa et al., 2009; 2010). Collaboration with Japanese Fishery Research Agency (FRA) has allowed us to assimilate huge amount of in-situ data around Japan. The assimilation of the in-situ data around Japan is quite effective to capture the Kuroshio frontal waves, the Oyashio intrusion, and the meso-scale eddies. FRA-JCOPE2 reanalysis data are available from the authors by request. The website http://www.jamstec.go.jp/jcope/vwp/ provides information about downloading and interactively visualizing the reanalysis data for users.


Reproduced Kuroshio/Kuroshio Extention paths Warm core ring 93A Changjiang diluted water: 1993-2002 Changjiang diluted water (CDW): 2003-2007 (Upper), Temporal variation of CDW input volume (Lower left), Comparison between CDW input volume and CDW area (Lower right)


Studies using FRA-JCOPE2/JCOPE2/JCOPE reanalysis data

Kunoki, S., A. Manda, Y. Kodama, S. Iizuka, K. Saito, I. Fathrio, T. Mitsui, H. Seko, Q. Moteki, S. Minobe, and Y. Tachibana, 2014: Oceanic influence on the Baiu frontal zone in the East China Sea, J. Geophys. Res. Atmos., 120, doi:10.1002/2014JD022234. html

Kawai, Y., T. Miyama, S. Iizuka, A. Manda, M. K. Yoshioka, S. Katagiri, Y. Tachibana, and H. Nakamura, 2014: Marine atmospheric boundary layer and low-level cloud responses to the Kuroshio Extension front in the early summer of 2012: three-vessel simultaneous observations and numerical simulations. J. Oceanogr. doi:10.1007/s10872-014-0266-0 html

Zhao, N., A. Manda, and Z. Han, 2014: Frontogenesis and frontolysis of the subpolar front in the surface mixed layer of the Japan Sea, J. Geophys. Res. Oceans, 119, 1498-1509. html

Manda, A., H. Nakamura, N. Asano, S. Iizuka, T. Miyama, Q. Moteki, M. K. Yoshioka, LK. Nishii, and T. Miyasaka, 2014: Impacts of a warming marginal sea on torrential rainfall organized under the Asian summer monsoon. Sci. Rep. 4, 5741; DOI:10.1038/srep05741.html

Kodaira, T., T. Waseda, and Y. Miyazawa, 2014: Nonlinear internal waves generated and trapped upstream of islands in the Kuroshio, Geophys. Res. Let. doi:10.1002/2014GL060113. html

Miyazawa, Y., N. Yamashita, S. Taniyasu, E. Yamazaki, X. Guo, S. M. Varlamov, and T. Miyama, 2014: Oceanic dispersion simulation of perfluoroalkyl substances in the Western North Pacific associated with the Great East Japan Earthquake of 2011, J. Oceanogr., 70, 535-547. html

Soeyanto, E., X. Guo, J. Ono, and Y. Miyazawa, 2014: Interannual variations of Kuroshio transport in the East China Sea and its relation to Pacific Decadal Oscillation and mesoscale eddy, J. Geophys. Res. doi:10.1002/2013JC009529. html

Miyama, T., and Y. Miyazawa, 2014: Short-term fluctuations south of Japan and their relationship with the Kuroshio path: 8- to 36-day fluctuations, Ocean Dyn.,64, 537-555. html

Perianez, R., K.-S. Suh, M. Byung-Il, N. Casacubetra, and P. Pasque, 2013: Numerical modeling of the releases of 90Sr from Fukushima to the ocean: an evaluation of the source term, Environ. Sci. Technol., 47, 12305-12313.html

Miyazawa, Y., H. Murakami, T. Miyama, S. M. Varlamov, X. Guo, T. Waseda, and S. Sil, 2013: Data assimilation of the high-resolution sea surface temperature obtained from the Aqua-Terra satellites (MODIS-SST) using an ensemble Kalman filter, Remote Sensing, 5, 3123-3139. html

Miyazawa, Y., Y. Masumoto, S. M. Varlamov, T. Miyama, M. Takigawa, M. Honda, and T. Saino, 2013: Inverse estimation of source parameters of oceanic radioactivity dispersion models associated with the Fukushima accident, Biogeosciences, 10, 2349-2363. html

Moteki, Q., and A. Manda, 2013: Seasonal migration of the Baiu frontal zone over the East China Sea:sea surface temperature effect, SOLA, 9, 19-22, doi:10.2151/sola.2013-005 html

Miyama, T., and Y. Miyazawa, 2013: Structure and dynamics of the sudden acceleration of Kuroshio off Cape Shionomisaki, Ocean Dynamics, doi: 10.1007/s10236-013-0591-7 html

Miyazawa, Y., Y. Masumoto, S. M. Varlamov, and T. Miyama, 2012: Transport simulation of the radionuclide from the shelf to open ocean around Fukushima, Continental Shelf Res., 50-51, 16-29. html

Masumoto, Y., Y. Miyazawa, D. Tsumune, T. Tsubono, T. Kobayashi, H. Kawamura, C. Estournel, P. Marsaleix, L. Lanerolle, A. Mehra, and Z. D. Garraffo, 2012: Oceanic dispersion simulations of 137Cs released from the Fukushima Daiichi Nuclear Power Plant, Elements, 8, 207-212. html

Honda, M. C., T. Aono, M. Aoyama, Y. Hamajima, H. Kawakami, M. Kitamura, Y. Masumoto,Y. Miyazawa, M. Takigawa, and T. Saino, 2012: Dispersion of artificial caesium-134 and -137 in the western North Pacific one month after the Fukushima accident, Geochemical Journal, 46, e1-e9. html

Miyazawa, Y., T. Miyama, S. M. Varlamov, X. Guo, and T. Waseda, 2012: Open and coastal seas interactions south of Japan represented by an ensemble Kalman Filter, Ocean Dynamics, doi:10.1007/s10236-011-0516-2. html

Isobe, A., S. Kako, X. Guo, and H. Takeoka, 2012: Ensemble numerical forecasts of the sporadic Kuroshio water intrusion (kyucho) into shelf and coastal waters, Ocean Dynamics, doi: 10.1007/s10236-011-0519-z. html

Miyake, Y., S. Kimura, T. Kawamura, T. Kitagawa, T. Takahashi, H. Takami, 2011: Population connectivity of Ezo abalone on the northern Pacific coast of Japan in relation to the establishment of harvest refugia, Mar. Ecol. Prog. Ser. 440:137-150. html

Lu, L.-F., Y. Miyazawa, W. Cui, and K. Nadaoka, 2010: Numerical study of surface water circulation around Sekisei Lagoon, southwest of Japan, Ocean Dynamics, doi:10.1007/s10236-010-0270-x. html

Isobe, A., X. Guo, and H. Takeoka, 2010: Hindcast and predictability of sporadic Kuroshio-water intrusion (kyucho of the Bungo Channel) into the shelf and coastal waters, J. Geophys. Res., 115, C04023, doi:10.1029/2009JC005818. html

Sugimatsu, K., and A. Isobe, 2010: Intrusion of Kuroshio-derived bottom cold water into Osaka Bay and its possible cause" J. Oceanog., 66, 191-199. html

Miyazawa, Y., R. Zhang, X. Guo, H. Tamura, D. Ambe, J.-S. Lee, A. Okuno, H. Yoshinari, T. Setou, and K. Komatsu, 2009: Water mass variability in the western North Pacific detected in a 15-year eddy resolving ocean reanalysis, J. Oceanogr. 65, 737-756. html

Endoh, T., and T. Hibiya, 2009: Interaction between the trigger meander of the Kuroshio and the abyssal anticyclone over Koshu Seamount as seen in the reanalysis data, Geophys. Res. Lett. 36, L18604, doi:10.1029/2009GL039389. html

Hisaki Y., and C. Imadu, 2009: Southward recirculation of the East China Sea Kuroshio west of Okinawa Island, J. Geophys. Res., 114, C06013, doi:10.1029/2008JC004943. html

Liu., D., J. K. Keesing, Q. Xing, and P. Shi, 2009: World's largest macroalgal bloom caused by expansion of seaweed aquaculture in China, Marine Pollution Bulletin, 58, 888-895. html

Tamura, H., T. Waseda, and Y. Miyazawa, 2009: Freakish sea state and swell-windsea coupling: Numerical study of the Suwa-Maru incident, Geophys. Res. Lett., 36, L01607, doi:10.1029/2008GL036280. html

Miyazawa, Y., T. Kagimoto, X. Guo, and H. Sakuma, 2008: The Kuroshio large meander formation in 2004 analyzed by an eddy-resolving ocean forecast system, J. Geophys. Res.,113, C10015, doi:10.1029/2007JC004226. html

Kagimoto, T., Y. Miyazawa, X. Guo, and H. Kawajiri, 2008: High resolution Kuroshio forecast system -Description and its applications-, in High Resolution Numerical Modeling of the Atmosphere and Ocean, W. Ohfuchi and K. Hamilton (eds), Springer, New York, 209-234. html


How to download FRA-JCOPE2 reanalysis data

Application Laboratory freely distributes FRA-JCOPE2 reanalysis data to any interested persons. If you accept following conditions of data use, please send us an E-mail describing your order: time range (maximum period: 1993.01.01-present; 2TB+), spatial range (maximum range:10.5-62N, 108-180E), variables (sea surface height, north-south velocity, east-west velocity, potential temperature, salinity). We provide URL of your ftp site for downloading your data (Fortran binary) with a README document.


Some data with format of GrADS (sea surface height, velocities, potential temperature, salinity at 0m, 100m, 200m, and 400m depths) are available every time from our web site.
(Check the website http://www.jamstec.go.jp/jcope/vwp/ ).

Contact:jcope at_mark jamstec.go.jp

Principal conditions of data use

  1. The user is permitted to use the data for the purpose of scientific research.
  2. The user is not allowed to copy or reproduce the data in any form for the purposes of distribution, (whether for remuneration or otherwise), sale, hire, lease or license or otherwise commercialise the data.
  3. The user is recommended to include our paper (Miyazawa et al., 2009) in the reference of any documents describing results obtained from analyses/visualizations of the data.

Reference: Miyazawa, Y., R. Zhang, X. Guo, H. Tamura, D. Ambe, J.-S. Lee, A. Okuno, H. Yoshinari, T. Setou, and K. Komatsu, 2009: Water mass variability in the western North Pacific detected in a 15-year eddy resolving ocean reanalysis , J. Oceanogr. 65, 737-756. PDF [3.4MB]



Although every effort has been made to ensure the correctness and accuracy of the information the data, Application Laboratory makes no representations, either express or implied, as to the accuracy, currency, completeness or suitability for any particular purpose of the information and accepts no liability for any use of the data or any responsibility for any reliance placed on that information. Application Laboratory acknowledges that the data cannot be guaranteed error free and that use of the data is at the user's sole risk and that the information contained in the data may be subject to change without notice.