Carbon dioxide, hydrographic and chemical data collected from the profile discrete samples during the R/V Xuelong CHINARE2010 cruise (EXPOCODE 76XL20100709) in the Arctic Ocean and Chukchi Sea from 2010-07-09 to 2010-08-29 (NCEI Accession 0171599)
INVESTIGATORS:
Baoshan Chen
- University of Delaware, School of Marine Science and Policy, DE, USA
Wei-Jun Cai 
- University of Delaware, School of Marine Science and Policy, DE, USA
- University of Delaware, School of Marine Science and Policy, DE, USA
Liqi Chen
- Key Laboratory of Global Change and Marine - Atmospheric Chemistry (GCMAC), Third Institute of Oceanography (TIO), State Oceanic Administration, Xiamen, China
PACKAGE DESCRIPTION: This dataset includes the profile discrete measurements of dissolved inorganic carbon, total alkalinity, CTD salinity and temperature collected in the summer of 2010 aboard R/V Xuelong in the Chinese Arctic Research Expedition (CHINARE10) cruise. The CHINARE project is an international collaboration between U.S. and Chinese scientists to study the water column carbonate chemistry in the western Arctic Ocean and Chukchi Sea.
CITE AS: Chen, Baoshan; Cai, Wei-Jun; Chen, Liqi (2018). Carbon dioxide, hydrographic and chemical data collected from the profile discrete samples during the R/V Xuelong CHINARE2010 cruise (EXPOCODE 76XL20100709) in the Arctic Ocean and Chukchi Sea from 2010-07-09 to 2010-08-29 (NCEI Accession 0171599). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v5862dr7. Accessed [date].
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0171599
NCEI DOI: https://doi.org/10.7289/v5862dr7
EXPOCODE: 76XL20100709;
CRUISE ID: CHINARE2010;
SECTION/LEG: Arctic Ocean;
TYPES OF STUDY:
Discrete measurement;Profile;
TEMPORAL COVERAGE:
SPATIAL COVERAGE:
GEOGRAPHIC NAMES:
PLATFORMS:
RESEARCH PROJECT(S):
Discrete measurement;Profile;
TEMPORAL COVERAGE:
START DATE: 2010-07-09
END DATE: 2010-08-29
SPATIAL COVERAGE:
NORTH: 88.394
WEST: -178.643
EAST: -151.3
SOUTH: 67.004
GEOGRAPHIC NAMES:
Arctic Ocean;Chukchi Sea;
PLATFORMS:
R/V Xuelong (ID: 76XL);
RESEARCH PROJECT(S):
none;
VARIABLES / PARAMETERS:
| Dissolved Inorganic Carbon | |
|---|---|
| Abbreviation: | TCARBN |
| Unit: | UMOL/KG |
| Observation type: | Discrete, bottle |
| Measured or calculated: | Measured |
| Sampling instrument: | CTD911 and 12L Niskin bottle |
| Analyzing instrument: | Apollo Scitech AS-C2 |
| Detailed sampling and analyzing information: | Discrete DIC samples were collected from throughout the water column using 12 L Niskin bottles mounted on a 24-bottle rosette equipped with a SeaBird CTD 911. Surface samples were collected at 3-5 m depth, from within the surface mixed layer.We transferred seawater from each Niskin bottle into a single 250 mL borosilicate glass bottle for analysis of both DIC and TAlk. 1 mL of seawater was removed from each sample bottle to allow for thermal expansion, and then 100 uL of saturated mercuric chloride solution was added to halt biological activity. The bottles were then sealed using Apiezon® L greased ground-glass stoppers. Samples were stored at 4 °C in the dark until they were analyzed after the cruise. Briefly, for DIC analysis, samples were analyzed at room temperatures. Each seawater sample (0.5 mL) was acidified using phosphoric acid and the evolved CO2 gas was extracted and carried by pure N2 gas to an infrared CO2 detector (Li-Cor 6262) for quantification. For each DIC sample, sub-samples were sequentially analyzed 2 or 3 times until we obtained two replicates with a precision within 0.1%. The average of the two values is reported. The precision of the DIC measurements was +/- 2 umol/kg. The accuracies of the DIC measurements were determined by routine analysis of certified reference material (CRM) provided by A. G. Dickson, Scripps Institution of Oceanography. |
| Standardization description: | The accuracies of the DIC measurements were determined by routine analysis of certified reference material (CRM) provided by A. G. Dickson, Scripps Institution of Oceanography. |
| Standardization frequency: | Every several hours |
| CRM manufacturer: | Andrew Dickson Laboratory at Scripps Institution of Oceanography |
| Preservation method: | Saturated solution of HgCl2 |
| Preservative volume: | 100 micro-liter HgCl2 |
| Uncertainty: | +/- 2 umol/kg |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Method reference: | Chen, B., W.-J. Cai and L. Chen (2015). "The marine carbonate system of the Arctic Ocean: Assessment of internal consistency and sampling considerations, summer 2010." Marine Chemistry 176: 174-188. |
| Researcher name: | Baoshan Chen |
| Researcher institution: | University of Georgia |
| Total alkalinity | |
|---|---|
| Abbreviation: | ALKALI |
| Unit: | UMOL/KG |
| Observation type: | Discrete, bottle |
| Measured or calculated: | Measured |
| Sampling instrument: | CTD911 and 12L Niskin bottle |
| Analyzing instrument: | Apollo Scitech AS-ALK2 |
| Type of titration: | potentiometric titration |
| Cell type (open or closed): | open |
| Detailed sampling and analyzing information: | Discrete TAlk samples were collected from throughout the water column using 12 L Niskin bottles mounted on a 24-bottle rosette equipped with a SeaBird CTD 911. Surface samples were collected at 3-5 m depth, from within the surface mixed layer.We transferred seawater from each Niskin bottle into a single 250 mL borosilicate glass bottle for analysis of both DIC and TAlk. 1 mL of seawater was removed from each sample bottle to allow for thermal expansion, and then 100 uL of saturated mercuric chloride solution was added to halt biological activity. The bottles were then sealed using Apiezon® L greased ground-glass stoppers. Samples were stored at 4 °C in the dark until they were analyzed after the cruise. TAlk was determined on 25 mL seawater sample by potentiometric titration, using 0.1 M hydrochloric acid and an open-cell titration system. All TAlk samples were analyzed in pre-thermostated (25 °C) glass cells. For each TAlk sample, sub-samples were sequentially analyzed 2 or 3 times until we obtained two replicates with a precision within 0.1%. The average of the two values is reported. The precision of the TAlk measurements was +/- 2 umol/kg. The accuracies of the TAlk measurements were determined by routine analysis of certified reference material (CRM) provided by A. G. Dickson, Scripps Institution of Oceanography. |
| Standardization description: | The accuracies of the DIC measurements were determined by routine analysis of certified reference material (CRM) provided by A. G. Dickson, Scripps Institution of Oceanography. |
| Standardization frequency: | Every day |
| CRM manufacturer: | Andrew Dickson Laboratory at Scripps Institution of Oceanography |
| Preservation method: | Saturated solution of HgCl2 |
| Preservative volume: | 100 micro-liter HgCl2 |
| Uncertainty: | +/- 2 umol/kg |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| Method reference: | Chen, B., W.-J. Cai and L. Chen (2015). "The marine carbonate system of the Arctic Ocean: Assessment of internal consistency and sampling considerations, summer 2010." Marine Chemistry 176: 174-188. |
| Researcher name: | Baoshan Chen |
| Researcher institution: | University of Georgia |
| CTD TEMPERATURE | |
|---|---|
| Abbreviation: | CTDTMP_ITS90_DEG_C |
| Unit: | degrees celcius |
| Observation type: | CTD sensor |
| Sampling instrument: | CTD |
| Analyzing instrument: | CTD |
| Uncertainty: | 0.0002 °C |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
| CTD Salinity | |
|---|---|
| Abbreviation: | CTDSAL |
| Observation type: | CTD sensor |
| Sampling instrument: | CTD |
| Analyzing instrument: | CTD |
| Quality flag convention: | WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value |
PUBLICATIONS DESCRIBING THIS DATASET:
none;
ADDITIONAL INFORMATION:
none;
FUNDING AGENCY:
National Natural Science Foundation of China; US National Science Foundation (NSF)
PROJECT TITLE:
41230529, 41476172, 41476173 and 41406221; NSF-ARC-0909330
PROJECT ID:
SUBMITTED BY: Wei-Jun Cai (qidi@jmu.edu.cn; yingxu.wu@jmu.edu.cn)
SUBMISSION DATE: 2018-03-20
REVISION DATE: 2022-07-07
PREVIOUS VERSIONS: Version 1.1Version 2.2
