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Dataset Overview | National Centers for Environmental Information (NCEI)

Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the Celtic Explorer in the North Atlantic Ocean from 2009-02-06 to 2012/01/10 (NCEI Accession 0112886)

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This dataset includes chemical, discrete sample, physical and profile data collected from Celtic Explorer in the North Atlantic Ocean from 2009-02-06 to 2012/01/10. These data include DISSOLVED INORGANIC CARBON (DIC), DISSOLVED OXYGEN, HYDROSTATIC PRESSURE, NITRATE, NITRATE + NITRITE CONTENT (CONCENTRATION), NITRITE, PHOSPHATE, SALINITY, SILICATE, TOTAL ALKALINITY (TA) and WATER TEMPERATURE. The instruments used to collect these data include Alkalinity titrator, CTD, Coulometer for DIC measurement and bottle.

These data were collected by Triona McGrath, Caroline Kivimae, Rachel R. Cave, Evin McGovern, Triona Dr. McGrath, Evin Dr. McGovern and Rachel R. Dr. Cave of National University of Ireland - Galway as part of the COASTAL_Rockall_Trough_2009_2010 and COASTAL_Rockall_Trough_2011_2012 data set. CDIAC assigned the following cruise ID(s) to this data set: CE11001, CE12001 and COASTAL_Rockall_Trough.

The Global Coastal Carbon Data Project data includes the bottle (discrete) and surface (underway) carbon-related measurements from coastal research cruises, the data from time series cruises and coastal moorings. The coastal regions data are very important for the understanding of carbon cycle on the continental margins.

The World Ocean Circulation Experiment (WOCE) was a major component of the World Climate Research Program with the overall goal of better understanding the ocean's role in climate and climatic changes resulting from both natural and anthropogenic causes. The CO2 survey took advantage of the sampling opportunities provided by the WOCE Hydrographic Program (WHP) cruises during this period between 1990 and 1998. The final collection covers approximately 23,000 stations from 94 WOCE cruises.
  • Cite as: McGrath, Triona; Kivimäe, Caroline; Cave, Rachel R.; McGovern, Evin (2013). Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the Celtic Explorer in the North Atlantic Ocean from 2009-02-06 to 2012/01/10 (NCEI Accession 0112886). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.rockall_trough_2012. Accessed [date].
gov.noaa.nodc:0112886
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Distribution Formats
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Distributor NOAA National Centers for Environmental Information
+1-301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Time Period 2009-02-06 to 2012-01-10
Spatial Bounding Box Coordinates
West: -18.2505
East: -9.499
South: 52.9975
North: 56.0013
Spatial Coverage Map
General Documentation
Associated Resources
  • McGrath, T., C. Kivimae, R. R. Cave, and E. McGovern (2012). Carbon Dioxide, Hydrographic, and Chemical Data Obtained During the R/V Celtic Explorer Standard Oceanographic Section Cruises in the Rockall Trough area. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, Tennessee, COASTAL_Rockall_Trough_2009_2010, COASTAL_Rockall_Trough_2011_2012.
  • McGrath, T., C. Kivimae, E. McGovern, R.R. Cave and E. Joyce. 2013. Winter measurements of oceanic biogeochemical parameters in the Rockall Trough (2009-2012). ESSD 5:375-383, https://doi.org/10.5194/essd-5-375-2013
  • McGrath, T., Kivimae, C., Tanhua, T., Cave, R.R. and McGovern, E., 2012a. Inorganic carbon and pH levels in the Rockall Trough 1991-2010. Deep Sea Research Part I: Oceanographic Research Papers, 68(0): 79-91.
  • McGrath, T., Nolan, G. and McGovern, E., 2012b. Chemical characteristics of water masses in the Rockall Trough. Deep Sea Research Part I: Oceanographic Research Papers, 61(0): 57-73.
  • McGrath, T., C. Kivimae, E. McGovern, R.R. Cave and E. Joyce. 2013. Winter measurements of oceanic biogeochemical parameters in the Rockall Trough (2009-2012). ESSD 5:375-383, https://doi.org/10.5194/essd-5-375-2013
  • NOAA National Centers for Environmental Information (2022). Ocean Carbon and Acidification Data System (OCADS). NOAA National Centers for Environmental Information. https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
Publication Dates
  • publication: 2013-09-12
  • revision: 2014-04-22
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
Data Update Frequency As needed
Supplemental Information
These data were acquired by NODC from the Carbon Dioxide Information Analysis Center (CDIAC) in accordance with an archival submission agreement between CDIAC and NODC.

NODC cannot verify the accuracy or availability of the data provider's citation information, which is maintained by CDIAC.

In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number.
Purpose This dataset is available to the public for a wide variety of uses including scientific research and analysis.
Use Limitations
  • accessLevel: Public
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: McGrath, Triona; Kivimäe, Caroline; Cave, Rachel R.; McGovern, Evin (2013). Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the Celtic Explorer in the North Atlantic Ocean from 2009-02-06 to 2012/01/10 (NCEI Accession 0112886). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.rockall_trough_2012. Accessed [date].
Cited Authors
Principal Investigators
Contributors
Resource Providers
Publishers
Acknowledgments
  • Funding Information: National Development Plan 2007-2013
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science Keywords OCADS Study Type
  • Discrete measurement
  • Profile
Provider Variable Abbreviations
  • ALKALI
  • CTDOXY
  • CTDSAL
  • CTDTMP
  • CTD_OXY
  • CTD_TMP
  • DIC
  • NITRAT
  • NITRIT
  • NO2+NO3
  • OXYGEN
  • PHSPHT
  • SALNTY
  • SILCAT
  • TA
  • TALK
  • TCARBN
Data Center keywords NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS Global Change Master Directory (GCMD) Data Center Keywords
Platform keywords NODC PLATFORM NAMES THESAURUS Global Change Master Directory (GCMD) Platform Keywords ICES/SeaDataNet Ship Codes
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords Provider Geographic Names
  • Atlantic Ocean
  • Eastern North Atlantic
  • Rockall Trough
Project keywords Cruise ID
  • CE11001
  • CE12001
  • COASTAL_Rockall_Trough
EXPOCODE
  • 45CE20090206
  • 45CE20100209
  • 45CE20110103
  • 45CE20120105
  • CE0903
  • CE10002
Ocean Acidification Search Keywords
  • Ocean Carbon and Acidification Data System (OCADS) Project
Reference Section ID
  • Rockall_Trough
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: McGrath, Triona; Kivimäe, Caroline; Cave, Rachel R.; McGovern, Evin (2013). Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the Celtic Explorer in the North Atlantic Ocean from 2009-02-06 to 2012/01/10 (NCEI Accession 0112886). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.rockall_trough_2012. Accessed [date].
Access Constraints
  • Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Fees
  • In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
Lineage information for: dataset
Processing Steps
  • 2013-09-12T11:02:22Z - NCEI Accession 0112886 v1.1 was published.
  • 2014-04-22T15:24:09Z - NCEI Accession 0112886 was revised and v2.2 was published.
    Rationale: Updates were received for this dataset. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Parameter or Variable: Dissolved Inorganic Carbon; Abbreviation: DIC; Observation type: discrete; In-situ / Manipulation / Response variable: In-situ observation; Measured or calculated: Calculated; Detailed sampling and analyzing information: TCO2 is measured by acidification of the sample with phosphoric acid followed by coulometric titration on a VINDTA-3C (Versatile Instrument for the Determination of Titration Alkalinity) system with UIC coulometer.; Standardization description: A known volume of sample is acidified with phosphoric acid in order to transfer all dissolved inorganic carbon to CO2. The resulting CO2 is forced out of the sample by a continuous flow of pure nitrogen through the sample and the extracted CO2 is passed into a titration cell in the coulometer. The CO2 is titrated coulometrically with a dimethyl sulfoxide (DMSO) based absorbent containing ethanolamine. The CO2 reacts quantitatively with the ethanolamine to produce hydroxyethylcarbanic acid. The pH of the titration is monitored by measuring the transmittance of the thymolphthalein indicator which shows when the titration is finished. The thymol blue indicator fades to the original colour due to generation of hydroxide ions at the cathode to maintain the transmittance of the solution at a constant value. The change in colour is monitored by the photodetector as a percentage of transmittance (%T). The amount of CO2 extracted from the sample is determined by the time integrated current of the hydroxide ions generated. Once the endpoint is reached, the current stops and the VINDTA LabVIEWTM software calculates the TCO2 concentrations.; CRM batch number: 97, 99, 102.
  • Parameter or Variable: Total alkalinity; Abbreviation: TA; 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: based on Gran function; TA blank correction: 30; Uncertainty: CE0903: Accuracy is estimated as 1.0u mol/kg, which is the mean of the absolute difference between the 64 duplicate samples analyzed. Precision is estimated as 1.3u mol/kg, which is the standard deviation of the absolute difference between the 64 duplicate samples analyzed. CE10002:Accuracy of the analysis was estimated as 1.3 μmol/kg by calculating the mean of the absolute difference between duplicate samples. Precision of the analysis was estimated as 1.4u mol/kg by calculating the standard deviation of the absolute difference between duplicate samples.; Method reference: Dickson, A.G., Sabine, C.L., Christian, J.R., 2007. Guide to best practices for ocean CO2 measurements. PICES Special Publication 3, 1-191. Mintrop, L., Pérez, F.F., González-Dávila, M., Körtzinger, A., Ríos, A.F., Santana-Casiano., J.M., 1999. Regional Studies: the carbon dioxide system in the Canary Islands region. Proceedings of the 2nd International Symposium CO2 in the Oceans, Tsukuba, Enero 1999. CGE-1037-99, Center for Global Environmental Research/National Institute for Environmental Studies, Japan pp. 521-524..
  • Parameter or Variable: CTDTMP; Abbreviation: CTDTMP; Unit: DEG_C; Controlled vocabulary name: WATER TEMPERATURE; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: CTDSAL; Abbreviation: CTDSAL; Controlled vocabulary name: SALINITY; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: CTDOXY; Abbreviation: CTDOXY; Unit: UMOL/KG; Controlled vocabulary name: DISSOLVED OXYGEN; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: SALNTY; Abbreviation: SALNTY; Controlled vocabulary name: SALINITY; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: NO2+NO3; Abbreviation: NO2+NO3; Unit: UMOL/KG; Controlled vocabulary name: nitrate + nitrite content (concentration); In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: NITRIT; Abbreviation: NITRIT; Unit: UMOL/KG; Controlled vocabulary name: NITRITE; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: SILCAT; Abbreviation: SILCAT; Unit: UMOL/KG; Controlled vocabulary name: silicate; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: PHSPHT; Abbreviation: PHSPHT; Unit: UMOL/KG; Controlled vocabulary name: phosphate; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: TCARBN; Abbreviation: TCARBN; Unit: UMOL/KG; Controlled vocabulary name: DISSOLVED INORGANIC CARBON (DIC); In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: ALKALI; Abbreviation: ALKALI; Unit: UMOL/KG; Controlled vocabulary name: total alkalinity; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: TALK; Abbreviation: TALK; Unit: UMOL/KG; Controlled vocabulary name: total alkalinity; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: NITRAT; Abbreviation: NITRAT; Unit: UMOL/KG; Controlled vocabulary name: NITRATE; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: OXYGEN; Abbreviation: OXYGEN; Unit: UMOL/KG; Controlled vocabulary name: DISSOLVED OXYGEN; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: CTD_TMP; Abbreviation: CTD_TMP; Unit: DEG_C; Controlled vocabulary name: WATER TEMPERATURE; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: CTD_OXY; Abbreviation: CTD_OXY; Unit: UMOL/KG; Controlled vocabulary name: DISSOLVED OXYGEN; In-situ / Manipulation / Response variable: in-situ .
Lineage information for: repository
Processing Steps
  • 2015-04-22T00:00:00 - NOAA created the National Centers for Environmental Information (NCEI) by merging NOAA's National Climatic Data Center (NCDC), National Geophysical Data Center (NGDC), and National Oceanographic Data Center (NODC), including the National Coastal Data Development Center (NCDDC), per the Consolidated and Further Continuing Appropriations Act, 2015, Public Law 113-235. NCEI launched publicly on April 22, 2015.
Acquisition Information (collection)
Instrument
  • bottle
  • coulometer for DIC measurement
  • CTD
  • titrator
Platform
  • Celtic Explorer
Last Modified: 2024-03-28T12:44:58Z
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