The Japan Meteorological Agency (JMA) has been carrying out oceanographic and marine meteorological observations on board research vessels, at the coastal water temperature observation stations and by ocean data buoys, for the purposes of the better understanding of dynamical processes of the oceanic general circulation affecting climate change, prevention and mitigation of natural disasters, and contributing to international cooperative activities. This Data Report contains the data obtained from the observations made by JMA in 2001 together with the explanations. Platforms include CHOFU MARU (call sign JCCX) (Operation dates: 1987 to present), SEIFU MARU (call sign JIVB) (Operation dates: 1993 to present) and others.

Nutrients and temperature profile data were collected using bottle, XBT, and CTD casts in the North Pacific Ocean, Sea of Japan, and other Sea areas from 01 January 1965 to 31 December 2002. Data were submitted by the Japan Meteorological Agency (JMA).

Salinity and temperature profile data were collected using XBT, CTD and XCTD casts from R/V MIRAI in the North/South Pacific Ocean and other Sea areas from 14 February 2001 to 18 December 2001. Data were submitted by the Japan Agency for Marine-Earth Science and Technology (JAMSTEC).

Temperature, salinity, and other measurements taken from the KEIFU MARU (Call Sign JPBN) (Operation dates: 2000 to present), SEIFU MARU (Call Sign JIVB) (Operation dates: 1993 to present) and other platforms in the Coastal N Pacific, North Pacific and other locations in 2007

Oceanographic observations performed by Japan Meteorological Agency in area under national jurisdiction of the United States. Data were submitted by the Embassy of Japan. The data are only available within a Portable Document Format (PDF). In addition to the standard CTD parameters (depth, temperature, salinity), there are 8 other water chemistry parameters included for some casts. There are 6 casts in total. Current measurements from ADCP at the time of each cast are available for select levels.

Oceanographic update data from SISMER 2007

This dataset contains temperature, salinity and other types of data collected using bottle casts, CTD, GEK (Geomagnetic Electrokinetography), XBT, DBT and MBT in the northwest Pacific Ocean. Data were provided by the Japan Oceanographic Data Center. Data formats for original data files (as presented in version 1.1/data/0-data/) are available upon request from NCEI. Data has been processed by NODC to the NODC standard Bathythermograph XBT Selected Depths (SBT) (C125) and Ocean Station (C100) formats. The Oceanographic Station Data (C100) format contains physical-chemical oceanographic data recorded at discrete depth levels. Most of the observations were made using multi-bottle Nansen casts or other types of water samplers. A small amount (about 5 percent) were obtained using electronic CTD (conductivity-temperature-depth) or STD (salinity-temperature-depth) recorders. The CTD/STD data were reported to NODC at depth levels equivalent to Nansen cast data, however, and have been processed and stored the same as the Nansen data. Cruise information (e.g., ship, country, institution), position, date, and time, and reported for each station. The principal measured parameters are temperature and salinity, but dissolved oxygen, phosphate, total phosphorus, silicate, nitrate, nitrite, and pH may be reported. Meteorological conditions at the time of the cast (e.g., air temperature and pressure, wind, waves) may also be reported, as well as auxiliary data such as water color (Forel-Ule scale), water transparency (Secchi disk depth), and depth to bottom. Values of density (sigma-t) sound velocity, and dynamic depth anomaly are computed from measured parameters. Each station contains the measurements taken at the observed depth levels, but also includes data values interpolated to a set of standard depth levels. The UBT (C125) format contains temperature-depth profile data obtained using expendable bathythermograph (XBT) instruments. Cruise information, position, date and time were reported for each observation. The data records are comprised of pairs of temperature-depth values. Depths are selected by the originator - usually at standard horizons or some fixed interval. Standard XBTs can obtain profiles to depths of either 450 or 760 m. Special instruments permitted measurements to be obtained to 1830 m.

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