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Nitrate dual isotope (d15N and d18O) measurements from R/V Knorr cruise KN192-05 in the South Atlantic subtropical gyre and Benguela upwelling region in 2007 (CoFeMUG project) (NCEI Accession 0278853)

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This dataset contains chemical and physical data collected on R/V Knorr during cruise KN192-05 in the South Atlantic Ocean from 2007-11-16 to 2007-12-13. These data include d18O_NO3, dN15_NO3, and water pressure. The instruments used to collect these data include Isotope-ratio Mass Spectrometer and Trace Metal Bottle. These data were collected by Karen L. Casciotti of Stanford University and Caitlin Frame of University of Basel (Universitat Basel) as part of the "Cobalt, Iron and Micro-organisms from the Upwelling zone to the Gyre (CoFeMUG)" project and "Ocean Carbon and Biogeochemistry (OCB)" and "U.S. GEOTRACES (U.S. GEOTRACES)" programs. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2020-03-31.

The following is the text of the dataset description provided by BCO-DMO:

Nitrate dual isotope (d15N and d18O) measurements.

Dataset Description:
Nitrate dual isotope (d15N and d18O) measurements made from samples from acid-cleaned, Teflon-coated X-Niskin sampling bottles on the CoFeMUG cruise (KN192-05).
  • Cite as: Casciotti, Karen L.; Frame, Caitlin (2023). Nitrate dual isotope (d15N and d18O) measurements from R/V Knorr cruise KN192-05 in the South Atlantic subtropical gyre and Benguela upwelling region in 2007 (CoFeMUG project) (NCEI Accession 0278853). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0278853. Accessed [date].
gov.noaa.nodc:0278853
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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 2007-11-16 to 2007-12-13
Spatial Bounding Box Coordinates
West: -30
East: 12.2
South: -17.5
North: -11
Spatial Coverage Map
General Documentation
Associated Resources
  • Biological, chemical, physical, biogeochemical, ecological, environmental and other data collected from around the world during historical and contemporary periods of biological and chemical oceanographic exploration and research managed and submitted by the Biological and Chemical Oceanography Data Management Office (BCO-DMO)
    • NCEI Collection
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  • Casciotti, K. L., Frame, C. (2015) Nitrate dual isotope (d15N and d18O) measurements from R/V Knorr cruise KN192-05 in the South Atlantic subtropical gyre and Benguela upwelling region in 2007 (CoFeMUG project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). Dataset version 2015-12-28. https://doi.org/10.26008/1912/bco-dmo.630246.1
    • Parent ID (indicates this dataset is related to other data):
    • gov.noaa.nodc:BCO-DMO
Publication Dates
  • publication: 2023-05-28
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
Acquisition Description:
Single water samples for nitrate isotopic analyses were collected from acid-cleaned, Teflon-coated X-Niskin sampling bottles (OceanTest Equipment) of 8-liter capacity deployed on an epoxy-coated rosette (Sea-Bird Electronics) rosette as described in Noble et al. (2012). Samples were collected into triple-rinsed 60 mL HDPE bottles and stored frozen at -20 degrees C until analysis. Isotopic analyses of NO3 were made with a Finnigan DELTA PLUS XP IRMS using the denitrifier method (Sigman et al., 2001; Casciotti et al., 2002; McIlvin and Casciotti, 2011). Both d15N-NO3 and d18O-NO3 analyses were made in duplicate and data are reported as means +/- 1 standard deviation.
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: Casciotti, Karen L.; Frame, Caitlin (2023). Nitrate dual isotope (d15N and d18O) measurements from R/V Knorr cruise KN192-05 in the South Atlantic subtropical gyre and Benguela upwelling region in 2007 (CoFeMUG project) (NCEI Accession 0278853). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0278853. Accessed [date].
Cited Authors
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Acknowledgments
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
BCO-DMO Standard Parameters Global Change Master Directory (GCMD) Science Keywords Originator Parameter Names
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 BCO-DMO Platform Names Global Change Master Directory (GCMD) Platform Keywords ICES/SeaDataNet Ship Codes
Instrument keywords NODC INSTRUMENT TYPES THESAURUS BCO-DMO Standard Instruments Global Change Master Directory (GCMD) Instrument Keywords Originator Instrument Names
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords Provider Place Names
Project keywords NODC PROJECT NAMES THESAURUS BCO-DMO Standard Programs BCO-DMO Standard Projects Global Change Master Directory (GCMD) Project Keywords Provider Cruise IDs Provider Funding Award Information
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Casciotti, Karen L.; Frame, Caitlin (2023). Nitrate dual isotope (d15N and d18O) measurements from R/V Knorr cruise KN192-05 in the South Atlantic subtropical gyre and Benguela upwelling region in 2007 (CoFeMUG project) (NCEI Accession 0278853). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0278853. Accessed [date].
Data License
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
  • 2023-05-28T04:37:44Z - NCEI Accession 0278853 v1.1 was published.
Output Datasets
Acquisition Information (collection)
Instrument
  • mass spectrometer
Platform
  • R/V Knorr
Last Modified: 2024-05-31T18:50:46Z
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