Dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, chlorofluorocarbons (CFC-11, CFC-12, CFC113), dissolved organic carbon (DOC), temperature, salinity, oxygen, nutrients and other measurements collected from profile and discrete sample observations during the R/V Mirai cruise MR15-05, GO-SHIP_I10 (EXPOCODE 49NZ20151223) in the Indian Ocean from 2015-12-23 to 2016-01-08 (NCEI Accession 0186206)
INVESTIGATORS:
Hiroshi Uchida
- Research and Development Center for Global Change (RCGC)
Akihiko Murata 
- Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
- Japan Agency for Marine-Earth Science and Technology (JAMSTEC)PACKAGE DESCRIPTION: This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, chlorofluorocarbons (CFC-11, CFC-12, CFC113), dissolved organic carbon (DOC), temperature, salinity, oxygen, nutrients and sulfur hexafluoride (SF6) collected during the R/V Mirai cruise MR15-05, GO-SHIP_I10 (EXPOCODE 49NZ20151223) in the Indian Ocean from 2015-12-23 to 2016-01-08. This study was conducted under the Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP).
CITE AS: Katsumata, Katsuro; Uchida, Hiroshi; Murata, Akihiko; Kumamoto, Yuichiro; Aoyama, Michio; Hansell, Dennis A.; Sasaki, Ken-ichi (2019). Dissolved inorganic carbon (DIC), total alkalinity, pH on total scale, chlorofluorocarbons (CFC-11, CFC-12, CFC113), dissolved organic carbon (DOC), temperature, salinity, oxygen, nutrients and other measurements collected from profile and discrete sample observations during the R/V Mirai cruise MR15-05, GO-SHIP_I10 (EXPOCODE 49NZ20151223) in the Indian Ocean from 2015-12-23 to 2016-01-08 (NCEI Accession 0186206). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/k672-p083. Accessed [date].
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0186206
NCEI DOI: https://doi.org/10.25921/k672-p083
EXPOCODE: 49NZ20151223;
CRUISE ID: MR15-05;
SECTION/LEG: GO-SHIP_I10;
TYPES OF STUDY:
Discrete measurement;
TEMPORAL COVERAGE:
SPATIAL COVERAGE:
GEOGRAPHIC NAMES:
PLATFORMS:
RESEARCH PROJECT(S):
Discrete measurement;
TEMPORAL COVERAGE:
START DATE: 2015-12-23
END DATE: 2016-01-08
SPATIAL COVERAGE:
NORTH: -8.57
WEST: 107.33
EAST: 112.84
SOUTH: -24.92
GEOGRAPHIC NAMES:
Indian Ocean;
PLATFORMS:
R/V Mirai (ID: 49NZ);
RESEARCH PROJECT(S):
none;
VARIABLES / PARAMETERS:
| Dissolved Inorganic Carbon | |
|---|---|
| Abbreviation: | TCARBN |
| Unit: | UMOL/KG |
| Observation type: | discrete |
| In-situ / Manipulation / Response variable: | In-situ observation |
| Measured or calculated: | Measured |
| Sampling instrument: | Niskin Bottles |
| Detailed sampling and analyzing information: | Measurement of TCARBN was made with two total CO2 measuring systems (called as Systems C and D, respectively; Nippon ANS, Inc.), which were slightly different from each other. The systems comprised of a seawater dispensing system, a CO2 extraction system and a coulometer. In this cruise, we used coulometers, Seacat2000 and Model23000 for Systems C and D, respectively, both of which were constructed by Nippon ANS. |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Akihiko Murata |
| Researcher institution: | JAMSTEC |
| Total alkalinity | |
|---|---|
| Abbreviation: | ALKALI |
| Unit: | UMOL/KG |
| Observation type: | discrete |
| In-situ / Manipulation / Response variable: | In-situ observation |
| Measured or calculated: | Measured |
| Type of titration: | Spectrophotometry |
| Detailed sampling and analyzing information: | Total alkalinity was measured using a new AT measuring system based on spectrophotometry and constructed by Nippon ANS. In addition, we measured AT based on potentiometry and constructed by Kimoto Electronic Co. Ltd. Both the methods are not yet fixed. Therefore we just show vertical distributions of AT measured by spectrophotometry. |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Akihiko Murata |
| Researcher institution: | JAMSTEC |
| pH on total scale | |
|---|---|
| Abbreviation: | PH_TOT |
| Observation type: | discrete |
| Sampling instrument: | Niskin Bottles |
| Detailed sampling and analyzing information: | Measurement of pH was made by a pH measuring system (Nippon ANS, Inc.). For the detection of pH, spectrophotometry was adopted. The system comprises of a water dispensing unit and a spectrophotometer (Bio 50 Scan, Varian). For an indicator, m-cresol purple (2 mM) was used. |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Method reference: | Clayton T.D. and R.H. Byrne (1993) Spectrophotometric seawater pH measurements: total hydrogen ion concentrtaion scale calibration of m-cresol purple and at-sea results. Deep-Sea Research 40, 2115-2129. |
| Researcher name: | Akihiko Murata |
| Researcher institution: | JAMSTEC |
| CTD Temperature | |
|---|---|
| Abbreviation: | CTDTMP |
| Unit: | degrees celcius |
| Observation type: | CTD sensor |
| Sampling instrument: | CTD |
| Analyzing instrument: | CTD Sensor |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Hiroshi Uchida |
| Researcher institution: | JAMSTEC |
| CTD Salinity | |
|---|---|
| Abbreviation: | CTDSAL |
| Observation type: | CTD sensor |
| Sampling instrument: | CTD |
| Analyzing instrument: | CTD sensor |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Hiroshi Uchida |
| Researcher institution: | JAMSTEC |
| Salinity | |
|---|---|
| Abbreviation: | SALNTY |
| Observation type: | Discrete, bottle |
| Sampling instrument: | Niskin Bottles |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Hiroshi Uchida |
| Researcher institution: | JAMSTEC |
| Dissolved Oxygen | |
|---|---|
| Abbreviation: | OXYGEN |
| Unit: | UMOL/KG |
| Observation type: | Discrete, bottle |
| Sampling instrument: | Niskin Bottles |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Yuichiro Kumamoto |
| Researcher institution: | JAMSTEC |
| silicate, nitrat, nitrit, phosphate | |
|---|---|
| Abbreviation: | Nutrients |
| Unit: | UMOL/KG |
| Observation type: | Discrete, bottle |
| Sampling instrument: | Niskin Bottles |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Michio Aoyama |
| Researcher institution: | Fukushima University |
| Dissolved organic carbon | |
|---|---|
| Abbreviation: | DOC |
| Unit: | UMOL/KG |
| Observation type: | Discrete, bottle |
| Sampling instrument: | CTD, Niskin Bottles |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Dennis A. Hansell |
| Researcher institution: | RSMAS |
| Chlorofluorocarbons (CFC-11, CFC-12, CFC113) | |
|---|---|
| Abbreviation: | CFC-11, CFC-12, CFC113 |
| Unit: | PMOL/KG |
| Observation type: | Discrete, bottle |
| Sampling instrument: | CTD, Niskin Bottles |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Ken’ichi Sasaki |
| Researcher institution: | JAMSTEC |
| sulfur hexaflouride | |
|---|---|
| Abbreviation: | SF6 |
| Unit: | FMOL/KG |
| Observation type: | Discrete, bottle |
| Sampling instrument: | CTD, Niskin Bottles |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Researcher name: | Ken’ichi Sasaki |
| Researcher institution: | JAMSTEC |
PUBLICATIONS DESCRIBING THIS DATASET:
none;
ADDITIONAL INFORMATION:
none;
FUNDING AGENCY:
Japan Agency for Marine-Earth Science and Technology (JAMSTEC)
PROJECT TITLE:
PROJECT ID:
SUBMITTED BY: Nico Lange (nlange@geomar.de)
SUBMISSION DATE: 2018-11-30
