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Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from MIRAI in the North Pacific Ocean from 2001-07-23 to 2001-08-28 (NCEI Accession 0108152)

INVESTIGATORS:
Akihiko Murata ORCID logo - Meteorological Research Institute
Masao Fukasawa - Ocean research Dept. JAMSTEC

PACKAGE DESCRIPTION: This dataset includes chemical, discrete sample, physical and profile data collected from MIRAI in the North Pacific Ocean from 2001-07-23 to 2001-08-28. These data include CHLOROFLUOROCARBON-11 (CFC-11), CHLOROFLUOROCARBON-113 (CFC-113), CHLOROFLUOROCARBON-12 (CFC-12), DELTA CARBON-13, DELTA CARBON-14, DISSOLVED INORGANIC CARBON (DIC), DISSOLVED OXYGEN, HYDROSTATIC PRESSURE, NITRATE, NITRITE, Potential temperature (theta), SALINITY, TOTAL ALKALINITY (TA), WATER TEMPERATURE, pH, phosphate and silicate. The instruments used to collect these data include Alkalinity titrator, CTD, Coulometer for DIC measurement, bottle and pH sensors. These data were collected by Akihiko Murata of Japan Agency for Marine-Earth Science and Technology (JAMSTEC) and Masao Fukasawa of Japan Agency for Marine-Earth Science and Technology (JAMSTEC); Mutsu Institute for Oceanography; Ocean Observation and Research Department as part of the CLIVAR_P17N_2001 data set. CDIAC associated the following cruise ID(s) with this data set: CLIVAR_P17N_2001 The International CLIVAR Global Ocean Carbon and Repeat Hydrography Program carries out a systematic and global re-occupation of select WOCE/JGOFS hydrographic sections to quantify changes in storage and transport of heat, fresh water, carbon dioxide (CO2), and related parameters.

CITE AS: Fukasawa, Masao; Murata, Akihiko (2013). Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from MIRAI in the North Pacific Ocean from 2001-07-23 to 2001-08-28 (NCEI Accession 0108152). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.clivar_p17n_2001. Accessed [date].


DATA PACKAGES RELATED TO THIS ONE:
none;
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0108152
NCEI DOI: https://doi.org/10.3334/cdiac/otg.clivar_p17n_2001
EXPOCODE: 49NZ20010723;
CRUISE ID: CLIVAR_P17N_2001;
SECTION/LEG: CLIVAR_P17N;

TYPES OF STUDY:
Discrete measurement;Profile;

TEMPORAL COVERAGE:
START DATE: 2001-07-23
END DATE: 2001-08-28

SPATIAL COVERAGE:
NORTH: 54.6153
WEST: -158.5702
EAST: -134.9867
SOUTH: 30.0002

GEOGRAPHIC NAMES:
Pacific Ocean;

PLATFORMS:
R/V Mirai (ID: 49NZ);

RESEARCH PROJECT(S):
none;

VARIABLES / PARAMETERS:

Dissolved Inorganic Carbon
Abbreviation: DIC
Observation type: discrete
In-situ / Manipulation / Response variable: In-situ observation
Measured or calculated: Calculated
Replicate information: The average difference of field replicate analyses was calculated to be 1.5+/-1.4 μmol/kg (n = 183).
Standardization description: Calibration was made using 6 Na2CO3 solutions of nominal 0.0, 500, 1000, 1500, 2000 and 2500 mol dm-3. The slope of the linear regression equation (R2 = 1.00000) was used as the calibration factor.
CRM batch number: 54
Total alkalinity
Abbreviation: TA
Observation type: discrete
In-situ / Manipulation / Response variable: In-situ observation
Measured or calculated: Measured
Type of titration: Gran
Cell type (open or closed): Open
Curve fitting method: Measurement of AT was made using a titration system which comprises of a titration manager (TIM900, Radiometer) and uto-burette (ABU901, Radiometer). A combination of a pH glass electrode (pHG201, Radiometer) and a reference electrode (REF201, Radiometer) was used to monitor changes of emf by titrating a sea water sample by an acid (0.1N HCl + 0.6N NaCl).
Uncertainty: The CRMs (mostly Bach #54 and two Bach #53) were measured to remove biases between analyzed values of samples. The average difference between the analysed values of CRM and the certified value (2342.09 mol kg-1; Bach #45) was calculated to be 3.6 +/- 3.3 μmol/kg (n = 18). Replicate samples were collected at an interval of ~ 5 to 8 sampling depth. Five replicate samples for each water column. The average difference of field replicate analyses was calculated to be 2.6+/-2.6 μmol/kg (n = 181).
pH
Abbreviation: pH
pH scale: total hydrogen scale
Observation type: discrete
In-situ / Manipulation / Response variable: In-situ observation
Measured or calculated: Measured
Temperature of pH measurement: 25
Detailed sampling and analyzing information: Separate glass (Radiometer PHG201) and reference (Radiometer REF201) electrodes were used. The e.m.f. of the glass/reference electrode cell was measured with a pH/Ion meter (Radiometer PHM95). In order not to have seawater sample exchange CO2 with the atmosphere during pH measurement, closed glass container with water jacket was used. The temperature during pH measurement was monitored with temperature sensor (Radiometer T901) and controlled at 25C within 0.1C
Uncertainty: At each station, 4 to 6 duplicate samples were measured, 180 pairs in total.The average difference was calculated to be 0.003+/-0.003.
CTDTMP
Abbreviation: CTDTMP
Unit: DEG_C
Controlled vocabulary name: WATER TEMPERATURE
In-situ / Manipulation / Response variable: in-situ
CTDSAL
Abbreviation: CTDSAL
Controlled vocabulary name: SALINITY
In-situ / Manipulation / Response variable: in-situ
SALNTY
Abbreviation: SALNTY
Controlled vocabulary name: SALINITY
In-situ / Manipulation / Response variable: in-situ
CTDOXY
Abbreviation: CTDOXY
Unit: UMOL/KG
Controlled vocabulary name: DISSOLVED OXYGEN
In-situ / Manipulation / Response variable: in-situ
OXYGEN
Abbreviation: OXYGEN
Unit: UMOL/KG
Controlled vocabulary name: DISSOLVED OXYGEN
In-situ / Manipulation / Response variable: in-situ
SILCAT
Abbreviation: SILCAT
Unit: UMOL/KG
Controlled vocabulary name: silicate
In-situ / Manipulation / Response variable: in-situ
NITRAT
Abbreviation: NITRAT
Unit: UMOL/KG
Controlled vocabulary name: NITRATE
In-situ / Manipulation / Response variable: in-situ
NITRIT
Abbreviation: NITRIT
Unit: UMOL/KG
Controlled vocabulary name: NITRITE
In-situ / Manipulation / Response variable: in-situ
PHSPHT
Abbreviation: PHSPHT
Unit: UMOL/KG
Controlled vocabulary name: phosphate
In-situ / Manipulation / Response variable: in-situ
CFC-11
Abbreviation: CFC-11
Unit: PMOL/KG
Controlled vocabulary name: CHLOROFLUOROCARBON-11 (CFC-11)
In-situ / Manipulation / Response variable: in-situ
CFC-12
Abbreviation: CFC-12
Unit: PMOL/KG
Controlled vocabulary name: CHLOROFLUOROCARBON-12 (CFC-12)
In-situ / Manipulation / Response variable: in-situ
CFC113
Abbreviation: CFC113
Unit: PMOL/KG
Controlled vocabulary name: CHLOROFLUOROCARBON-113 (CFC-113)
In-situ / Manipulation / Response variable: in-situ
DELC14
Abbreviation: DELC14
Unit: /MILLE
Controlled vocabulary name: DELTA CARBON-14
In-situ / Manipulation / Response variable: in-situ
DELC13
Abbreviation: DELC13
Unit: /MILLE
Controlled vocabulary name: DELTA CARBON-13
In-situ / Manipulation / Response variable: in-situ
C14ERR
Abbreviation: C14ERR
Unit: /MILLE
In-situ / Manipulation / Response variable: in-situ
ALKALI
Abbreviation: ALKALI
Unit: UMOL/KG
Controlled vocabulary name: total alkalinity
In-situ / Manipulation / Response variable: in-situ
TCARBN
Abbreviation: TCARBN
Unit: UMOL/KG
Controlled vocabulary name: DISSOLVED INORGANIC CARBON (DIC)
In-situ / Manipulation / Response variable: in-situ
PH
Abbreviation: PH
Unit: TOT@25C
Controlled vocabulary name: pH
In-situ / Manipulation / Response variable: in-situ
PH_TMP
Abbreviation: PH_TMP
Unit: DEG_C
Controlled vocabulary name: pH
In-situ / Manipulation / Response variable: in-situ
PUBLICATIONS DESCRIBING THIS DATASET:
none;
ADDITIONAL INFORMATION:
none;
FUNDING AGENCY:

SUBMITTED BY: Alex Kozyr (Alex.Kozyr@noaa.gov)

SUBMISSION DATE: 2013-06-07

REVISION DATE: 2017-02-22

PREVIOUS VERSIONS: Version 1.1Version 2.2