JKEO Buoy Web Site


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Overview -JKEO Buoy-

Phase 1:
On February 18, 2007, at 37- 55.33N, 146- 34.64E (nominal 38.0N, 146.5E, named as "JAMSTEC Kuroshio Extension Observatory, JKEO" site) in the north of Kuroshio Extension region, IORGC/JAMSTEC deployed a surface buoy (JKEO1) under the collaboration in research with PMEL/NOAA. This JKEO1 buoy is based on KEO buoy of NOAA/PMEL and carries same sensors as KEO to monitor heat, moisture and momentum fluxes, and upper ocean temperature and salinity. Those flux and ocean observation data from JKEO1 are publicly available in this web site, and will be utilized for better understanding of air-sea interaction in the western North Pacific, and validation of satellite data.


Locations of JKEO and KEO buoys. Black contour and color mean SST (deg. C). White contour means turbulent heat flux (W/m**2). The SST and the turbulent heat flux data are derived from COADS wintertime climatology during 1960-1997.
PMEL/NOAA has set a CO2 measurement system on JKEO buoy under the collaboration in research with Mutsu Institute for Oceanography (MIO) of JAMSTEC. JKEO CO2 data and metadata are available through the PMEL CO2time series web pages.

JKEO1 was recovered on March 24 by R/V Mirai. The delayed mode data retrieved will be publicly available in this web site from September 1, 2008.


Phase 2:
On February 29, 2008, IORGC/JAMSTEC deployed another surface buoy JKEO2 at JKEO site (38-04.82' N, 146-25.21' E). JKEO2 buoy is a newly designed one named as K-TRITON which is based on Mini-TRITON buoy developed by MARITEC/JAMSTEC.

From May 28, JKEO2 has kept transmitting no observational data. We are watching its daily position data transmitted from JKEO2 emergency ARGOS system. Repair of JKEO2 is expected to be conducted until mid September.

Detailed descriptions on JKEO2 and the data from JKEO2 until May 28 will be publicly available in this web site soon later.


Last update on June 4, 2008.

<Technical Information>



Daily mean surface flux from JKEO

。。This web site displays the daily mean time series of meteorological parameters observed by JKEO buoy. In addition, we calculate surface fluxes using a bulk method and the meteorological parameters. The figures will be updated every day automatically.

<Data Files>
Last update : Tue Sep 16 15:15:01 JST 2008









Last 3days data view

Last update : Tue Sep 16 15:15:01 JST 2008
YYYYMMDD LONLAT WNDRHTATS MFSWRLWRLHFSHF
(deg. E)(deg. N) (m/s)(%)(deg.C)(deg.C) (N/m**2)(W/m**2)(W/m**2)(W/m**2)(W/m**2)
2008 03 21 146.61 37.95 -9999.0 -9999.0 -9999.00 15.08 -9999.00 95.98 126.89 -9999.00 -9999.00
2008 03 22 146.60 37.96 -9999.0 -9999.0 -9999.00 15.21 -9999.00 54.70 66.58 -9999.00 -9999.00
2008 03 23 146.57 37.96 -9999.0 -9999.0 -9999.00 15.19 -9999.00 92.86 110.58 -9999.00 -9999.00




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