INVESTIGATORS:
Richard A. Feely 
- NOAA Pacific Marine Environmental Laboratory (PMEL)
Christopher L. Sabine
- NOAA Pacific Marine Environmental Laboratory (PMEL)
Dennis A. Hansell
- Rosenstiel School of Marine and Atmospheric Science (RSMAS)
Andrew G. Dickson
- Scripps Institution of Oceanography (SIO)
PACKAGE DESCRIPTION: This dataset includes discrete profile measurements of dissolved inorganic carbon (DIC), total alkalinity, temperature, salinity, dissolved oxygen, nutrients, chlorofluorocarbons (CFC-11, CFC-12), dissolved organic carbon (DOC), tritium and helium obtained during the R/V Roger Revelle cruise CLIVAR_I08S_2007 (EXPOCODE 33RR20070204) in the Indian Ocean from 2007-02-04 to 2007-03-17. These data were collected by Dennis Hansell of Rosenstiel School of Marine and Atmospheric Science, Richard A. Feely and Christopher Sabine of US DOC; NOAA; OAR; Pacific Marine Environmental Laboratory and Andrew Dickson of University of California - San Diego; Scripps Institution of Oceanography as part of the CLIVAR_I08S_2007 data set. 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: Feely, Richard A.; Sabine, Christopher L.; Dickson, Andrew G.; Wanninkhof, Rik; Hansell, Dennis A. (2013). Dissolved inorganic carbon (DIC), total alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations during the R/V Roger Revelle cruise CLIVAR_I08S_2007 (EXPOCODE 33RR20070204) in the Indian Ocean from 2007-02-04 to 2007-03-17 (NCEI Accession 0108119). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.clivar_i08s_2007. Accessed [date].
DATA PACKAGES RELATED TO THIS ONE:
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0108119
NCEI DOI: https://doi.org/10.3334/cdiac/otg.clivar_i08s_2007
EXPOCODE: 33RR20070204;
CRUISE ID: CLIVAR_I08S_2007;
SECTION/LEG: CLIVAR I08S;
TYPES OF STUDY: Discrete measurement;Profile;TEMPORAL COVERAGE:
START DATE: 2007-02-04
END DATE: 2007-03-17
SPATIAL COVERAGE:
WEST: 81.9622
EAST: 95.0275
GEOGRAPHIC NAMES: Indian Ocean;
PLATFORMS: R/V Roger Revelle (ID: 33RR);
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 |
| Replicate information: |
The precision is displayed by the greater than 450 replicate samples drawn. The absolute average difference from the mean of these replicates are less than 0.85 μmol/kg. No significant systematic differences were noted. |
| Standardization description: |
The coulometers were each calibrated by injec ting aliquots of pure CO2 (99.99%) by means of an 8-port valve outfitted with two sample loops (Wilke et al., 1993). The instruments were calibrated at the beginning and end of each full station with a set of the gas loop injections. |
| CRM batch number: |
Batch 78 |
| 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: |
potentiometric |
| Cell type (open or closed): |
Open |
| Curve fitting method: |
Analys is of samples was carried out using an open cell system per A.G. Dickson (complete reference info to be provided later) using a two-s tep titration. While the sample was being stirred slow ly, an approximately 2.5 ml aliquot of acid was added to bring the pH of the sample to ~3.5. After 4.5 minutes of vigorous stirring and bubbling w ith CO2 free air, additional aliquots of 0.05 mls of the acid were added. |
| Method reference: |
Dickson, Andrew G., Chris Sabine and James R. Christian, editors, Guide to Best Practices for Ocean CO2 Measurements, Pices Special Publication 3, IOCCP Report No. 8, October 2007, SOP 3b, Determination of total alkalinity in sea water using an open-cell titration |
| 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 |
| DOC |
|---|
| Abbreviation: |
DOC |
| Unit: |
UMOL/KG |
| Controlled vocabulary name: |
DISSOLVED ORGANIC CARBON |
| In-situ / Manipulation / Response variable: |
in-situ |
| TN |
|---|
| Abbreviation: |
TN |
| Unit: |
UMOL/KG |
| Controlled vocabulary name: |
Total nitrogen |
| In-situ / Manipulation / Response variable: |
in-situ |
| TRITUM |
|---|
| Abbreviation: |
TRITUM |
| Unit: |
TU |
| Controlled vocabulary name: |
Tritium (Hydrogen isotope) |
| In-situ / Manipulation / Response variable: |
in-situ |
| TRITER |
|---|
| Abbreviation: |
TRITER |
| Unit: |
TU |
| In-situ / Manipulation / Response variable: |
in-situ |
| HELIUM |
|---|
| Abbreviation: |
HELIUM |
| Unit: |
NMOL/KG |
| Controlled vocabulary name: |
HELIUM |
| In-situ / Manipulation / Response variable: |
in-situ |
| HELIER |
|---|
| Abbreviation: |
HELIER |
| Unit: |
NMOL/KG |
| In-situ / Manipulation / Response variable: |
in-situ |
| DELHE3 |
|---|
| Abbreviation: |
DELHE3 |
| Unit: |
PERCNT |
| Controlled vocabulary name: |
DELTA HELIUM-3 |
| In-situ / Manipulation / Response variable: |
in-situ |
PUBLICATIONS DESCRIBING THIS DATASET: none;
ADDITIONAL INFORMATION: none;
FUNDING AGENCY: NOAA Climate Program
PROJECT TITLE:
PROJECT ID:
SUBMITTED BY: Alex Kozyr (Alex.Kozyr@noaa.gov)
SUBMISSION DATE: 2013-06-06
REVISION DATE: 2016-02-21
PREVIOUS VERSIONS: Version 1.1
