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OAS accession Detail for 0080989, meta_version: 4. Current meta_version is: 12
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| accessions_id: | 0080989 | archive |
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| Title: | Dissolved inorganic carbon, total alkalinity, temperature, salinity, and other variables collected via surface underway survey from Volunteer Observing Ship Ryofu Maru III in the North Pacific Ocean and Equatorial Pacific Ocean from 1997-10-20 to 1999-07-12 (NODC Accession 0080989) |
| Abstract: | MRI Database |
| Date received: | 20111102 |
| Start date: | 19971020 |
| End date: | 19990712 |
| Seanames: | Equatorial Pacific Ocean, North Pacific Ocean, Philippine Sea |
| West boundary: | 135 |
| East boundary: | 146.48 |
| North boundary: | 33.36 |
| South boundary: | 2.99 |
| Observation types: | surface underway |
| Instrument types: | autonomous sensor to measure dissolved inorganic carbon (DIC) |
| Datatypes: | AIR TEMPERATURE, ALKALINITY - TOTAL, BAROMETRIC PRESSURE, DISSOLVED INORGANIC CARBON (DIC), SALINITY, TEMPERATURE - WATER, WIND DIRECTION, WIND SPEED |
| Submitter: | Kozyr, Alex |
| Submitting institution: | Carbon Dioxide Information Analysis Center |
| Collecting institutions: | Hokkaido University; Graduate School of Environmental Earth Science; Laboratory of Marine and Atmospheric Geochemistry, Meteorological Research Institute Japan |
| Contributing projects: | |
| Platforms: | Ryofu Maru (49UP) |
| Number of observations: | |
| Supplementary information: | Global Volunteer Observing Ship (VOS) Program data from Carbon Dioxide Information Analysis Center (CDIAC) at Oak Ridge National Laboratory (ORNL). Citation: Inoue, H.Y., M. Ischii. 2008. Measurements of the partial pressure of CO2 in near-surface seawater and in marine boundary air onboard the R/V Ryofu Maru III during the 1997-1999 cruises: MRI database. http://cdiac.ornl.gov/ftp/oceans/MRI_1968_2003/Ryofu_Maru_III/. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, US Department of Energy, Oak Ridge, Tennessee. doi: 10.3334/CDIAC/otg.VOS_RM_III_1997-1999 Investigators: Inoue, Hisayuki Y., Hokkaido University Ishii, Masao, Meteorological Research Institute The data set can be accessed at CDIAC: http://cdiac.ornl.gov/oceans/VOS_Program/MRI.html MRI Database Cruise ID: RF9709, RF9901, RF9906 Dataset ID: MRI underway DIC measurements DIC measurement: To establish an identical DIC concentration scale among cruises and laboratories, we also analyzed DIC in the Certified Reference Material (CRM) provided by Dr. A. G. Dickson of the Scripps Institution of Oceanography (http://www.mpl.ucsd.edu/people/adickson/CO2_QC/index.html) and in reference seawaters we prepared from western North Pacific oligotrophic water by a similar method to that of Dickson, Unesco Technical Papers in Marine Science 60, pp. 34-38, 1991. The concentration of DIC in our reference seawaters and their homogeneity and stability have been determined by occasional calibrations with suites of sodium carbonate solutions prepared with primary-standard-grade sodium carbonate powder and purified water such as those prepared by Milli SP-TOC, and concurrent analyses of the CRM (Ishii et al., 2000). The analytical results of CRM based on our calibration with sodium carbonate solutions usually agreed with their certified values within +/-1.5 umol kg-1, but sometimes exceeded +/-3.0 umol kg-1. The systematic errors in our calibrations were corrected if they were statistically significant. During the underway measurements and series of discrete samples analyses, we also analyzed CRM or our reference seawater typically at least twice during the each run of the coulometric cathode- and anode-solution. The precision (+/-1sigma) of analysis estimated for each cruise ranged between +/-1.0 and +/-2.1 umol kg-1. TA calculation: Total alkalinity was calculated from the data of DIC, pCO2sw, temperature and salinity that have been concurrently measured using the dissociation constants of carbonic acid given by Roy et al., Marine Chemistry 44, 249-268, 1993, and solubility of CO2 given by Weiss, Marine Chemistry 2, 203-215,1974. |
| Availability date: | |
| Metadata version: | 4 |
| Keydate: | 2011-11-11 13:17:15+00 |
| Editdate: | 2011-12-07 18:29:06+00 |