North Pacific Argo Float Data Set (Updated on Jan. 26, 2024)
Currently, this dataset is updated monthly.
For the details of the data, please refer to README, which is also updated monthly.
The use of the data is free, although I would appreciate if you would let me know it.
Those who do "user registration" will receive new information/notice of the data each time by e-mail.
(List of past e-mail notices --- Please read them, especially when you use the data for the first time.)
Reference:
Oka, E., L. D. Talley, and T. Suga, 2007: Temporal variability of winter mixed layer in the mid- to high-latitude North Pacific. Journal of Oceanography, 63, 293-307. [link]
Data (compressed in a lzh form):
Maps of observation points for every 3 months (pdf):
List of papers using this data set
- Bingham, F.M. and T. Suga, 2006: Distributions of mixed layer properties in North Pacific water mass formation areas: comparison of Argo floats and World Ocean Atlas 2001. Ocean Science, 2, 61-70. [link]
- Isoguchi, O., H. Kawamura, and E. Oka, 2006: Quasi-stationary jets transporting surface warm waters across the transition zone between the subtropical and the subarctic gyres in the North Pacific. Journal of Geophysical Research, 111, C10003, doi:10.1029/2005JC003402. [link to abstract]
- Oka, E., L. D. Talley, and T. Suga, 2007: Temporal variability of winter mixed layer in the mid- to high-latitude North Pacific. Journal of Oceanography, 63, 293-307. [link]
- Ueno, H., E. Oka, T. Suga, H. Onishi, and D. Roemmich, 2007: Formation and variation of temperature inversions in the eastern subarctic North Pacific. Geophysical Research Letters, 34(5), L05603, doi:10.1029/2006GL028715. [link to abstract]
- Sugimoto, S. and K. Hanawa, 2007: Further evidence for non-reemergence of winter SST anomalies in the North Pacific eastern subtropical mode water areas. Journal of Oceanography, 63, 625-635. [link to abstract]
- Ohno, Y., N. Iwasaka, F. Kobashi, and Y. Sato, 2009: Mixed layer depth climatology of the North Pacific based on Argo observations. Journal of Oceanography, 65, 1-16. [link to abstract]
- Oka E., 2009: Seasonal and interannual variation of North Pacific Subtropical Mode Water in 2003-2006. Journal of Oceanography, 65, 151-164. [link to abstract]
- Oka E., K. Toyama, and T. Suga, 2009: Subduction of North Pacific central mode water associated with subsurface mesoscale eddy. Geophysical Research Letters, 36, L08607, doi:10.1029/2009GL037540. [link to abstract]
- Ueno H., H. J. Freeland, W. R. Crawford, H. Onishi, E. Oka, K. Sato, and T. Suga, 2009: Anticyclonic eddies in the Alaskan Stream. Journal of Physical Oceanography, 39, 934-951. [link to abstract]
- Takano A., H. Yamazaki, T. Nagai, and O. Honda, 2009: A method to estimate three-dimensional thermal structure from satellite altimetry data. Journal of Atmospheric and Oceanic Technology, 26, 2655-2664. [link to abstract]
- Sugimoto S., and K. Hanawa, 2010: Impact of Aleutian Low activity on the STMW formation in the Kuroshio recirculation gyre region. Geophysical Research Letters, 37, L03606, doi:10.1029/2009GL041795. [link to abstract]
- Osafune, S., and I. Yasuda, 2010: Bidecadal variability in the Bering Sea and the relation with 18.6 year period nodal tidal cycle. J. Geophys. Res., 115, C02014, doi:10.1029/2008JC005110. [link to abstract]
- Toyama K. and T. Suga, 2010: Vertical structure of North Pacific mode waters. Deep-Sea Research II, 57, 1152-1160. [link to abstract]
- Oka, E., S. Kouketsu, K. Toyama, K. Uehara, T. Kobayashi, S. Hosoda, and T. Suga, 2011: Formation and subduction of Central Mode Water based on profiling float data, 2003-08. Journal of Physical Oceanography, 41, 113-129. [link to abstract]
- Oka E., T. Suga, C. Sukigara, K. Toyama, K. Shimada, and J. Yoshida, 2011: "Eddy resolving" observation of the North Pacific Subtropical Mode Water. Journal of Physical Oceanography, 41, 666-681. [link to abstract]
- Kimizuka, M., F. Kobashi, and N. Iwasaka, 2011: Water characteristics and temporal variations of the warm core ring off Sanriku of Japan observed by Argo floats. Umi no Kenkyu (Oceanography in Japan), 20, 149-165 (in Japanese with English abstract and legends). [link to pdf]
- Saito, H., T. Suga, K. Hanawa, and N. Shikama, 2011: The transition region mode water of the North Pacific and its rapid modification. Journal of Physiscal Oceanography, 41, 1639-1658. [link to abstract]
- Kouketsu, S., H. Tomita, E. Oka, S. Hosoda, T. Kobayashi, and K. Sato, 2012: The role of meso-scale eddies in mixed layer deepening and mode water formation in the western North Pacific. Journal of Oceanography, 68, 63-77. [link to abstract]
- Toyama, K. and T. Suga, 2012: Roles of mode waters in the formation and maintenance of central water in the North Pacific. Journal of Oceanography, 68, 79-92. [link to abstract]
- Oka, E., B. Qiu, S. Kouketsu, K Uehara, and T Suga, 2012: Decadal seesaw of the Central and Subtropical Mode Water formation associated with the Kuroshio Extension variability. Journal of Oceanography, 68, 355-360. [link to abstract]
- 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, 62, 633-644. [link to abstract]
- Ueno, H., I. Yasuda, S. Itoh, H. Onishi, Y. Hiroe, T. Suga, and E. Oka, 2012: Modification of a Kenai eddy along the Alaskan Stream. Journal of Geophysical Research, 117, C08032, doi:10.1029/2011JC007506. [link to abstract]
- Abe, H., K. Hanawa, and N. Ebuchi, 2013: Interannual variations in the Hawaiian Lee Countercurrent. Journal of Oceanography, 69, 191-202. [link to abstract]
- Ueno, H., 2013: Decadal variation of temperature inversions along Line P. Journal of Oceanography, 69, 277-283. [link to abstract]
- Sugimoto, S., N. Takahashi, and K. Hanawa, 2013: Marked freshening of North Pacific subtropical mode water in 2009 and 2010: Influence of freshwater supply in the 2008 warm season. Geophys. Res. Lett., 40, 3102-3105. [link to abstract]
- Seo, Y., S. Sugimoto, and K. Hanawa, 2014: Long-Term Variations of the Kuroshio Extension Path in Winter: Meridional Movement and Path State Change. Journal of Climate, 27, 5929-5940. [link to abstract]
- Sugimoto, S. and K. Hanawa, 2014: Influence of Kuroshio Path Variation South of Japan on Formation of Subtropical Mode Water. Journal of Physical Oceanography, 44, 1065-1077. [link to abstract]
- Oka E., K. Uehara, T. Nakano, T. Suga, D. Yanagimoto, S. Kouketsu, S. Itoh, S. Katsura, and L. D. Talley, 2014: Synoptic observation of Central Mode Water in its formation region in spring 2003. Journal of Oceanography, 70, 521-534. [link to abstract]
- Murase, H., T. Hakamada, K. Matsuoka, S. Nishiwaki, D. Inagake, M. Okazaki, N. Tojo, and T. Kitakado, 2014: Distribution of sei whales (Balaenoptera borealis) in the subarcticsubtropical transition area of the western North Pacific in relation to oceanic fronts. Deep Sea Research II, 107, 22-28. [link to abstract]
- Sugimoto, S., N. Kobayashi, and K. Hanawa, 2014: Quasi-Decadal Variation in Intensity of the Western Part of the Winter Subarctic SST Front in the Western North Pacific: The Influence of Kuroshio Extension Path State. Journal of Physical Oceanography, 44, 2753-2762. [link to abstract]
- Sugimoto, S., 2014: Influence of SST Anomalies on Winter Turbulent Heat Fluxes in the Eastern KuroshioOyashio Confluence Region. Journal of Climate, 27, 9349-9358. [link to abstract]
- Oka E., B. Qiu, Y. Takatani, K. Enyo, D. Sasano, N. Kosugi, M. Ishii, T. Nakano, and T. Suga, 2015: Decadal variability of Subtropical Mode Water subduction and its impact on biogeochemistry. Journal of Oceanography, 71, 389-400. [link to abstract]
- Katsura S., E. Oka, and K. Sato, 2015: Formation Mechanism of Barrier Layer in the Subtropical Pacific. Journal of Physical Oceanography, 45, 2790-2805. [link to abstract]
- Kawakami Y., S. Sugimoto, and T. Suga, 2016: Inter-annual zonal shift of the formation region of the lighter variety of the North Pacific Central Mode Water. Journal of Oceanography, 72, 225-234. [link to abstract]
- Sugimoto S. and S. I. Kako, 2016: Decadal variation in winter mixed layer depth south of the Kuroshio Extension and its influence on winter mixed layer temperature. Journal of Climate, 29, 1237-1252. [link to article]
- Oka, E., S. Katsura, H. Inoue, A. Kojima, M. Kitamoto, T. Nakano, and T. Suga, 2017: Long-term change and variation of salinity in the western North Pacific subtropical gyre revealed by 50-year long observations along 137E. Journal of Oceanography, 73, 479-490. [link to article]
- Katsura S., 2018: Properties, formation, and dissipation of the North Pacific Eastern Subtropical Mode Water and its impact on interannual spiciness anomalies. Progress in Oceanography, 162, 120-131. [link to abstract]
- 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. Journal of Oceanography, 75, 37-50. [link to abstract]
- Katsura S., H. Ueno, H. Mitsudera, and S. Kouketsu, 2020: Spatial Distribution and Seasonality of Halocline Structures in the Subarctic North Pacific. Journal of Physical Oceanography, 50, 95-109. [link to abstract]
- Sugimoto S., B. Qiu, and A. Kojima, 2020: Marked coastal warming off Tokai attributable to Kuroshio large meander. Journal of Oceanography, 76, 141-154. [link to abstract]
- Oka, E., S. Kouketsu, D. Yanagimoto, D. Ito, Y. Kawai, S. Sugimoto, and B. Qiu, 2020: Formation of Central Mode Water based on two zonal hydrographic sections in spring 2013 and 2016. Journal of Oceanography, in press. [link: open access]
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