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Dataset Overview | National Centers for Environmental Information (NCEI)

Delta Oxygen-18 and SEA SURFACE TEMPERATURE collected from KNORR in Equatorial Pacific Ocean from 0862-01-01 to 2009-01-01 (NCEI Accession 0142201)

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Tropical Pacific Ocean dynamics during the Medieval Climate Anomaly (MCA) and Little Ice Age (LIA) are poorly characterized due to lack of evidence from the eastern equatorial Pacific. We reconstructed sea surface temperature, El Niño– Southern Oscillation (ENSO) activity, and the tropical Pacific zonal gradient for the past millennium from Galápagos ocean sediments. We document a “Mid - Millennium Shift” (MMS) in ocean - atmosphere circulation ~1500 -1650 CE, from a state with strong zonal gradient and dampened ENSO to one with weak gradient and amplified ENSO. The MMS coincided with deepest LIA cooling and was likely caused by southward shift of the Intertropical Convergence Zone. Peak MCA (900 - 1150 CE) was a warm period in the eastern Pacific, contradicting the paradigm of a persistent La Niña pattern.
  • Cite as: Rustic, Gerald T.; Koutavas, Athanasios; Marchitto, Thomas M.; Linsley, Braddock K. (2016). Delta Oxygen-18 and SEA SURFACE TEMPERATURE collected from KNORR in Equatorial Pacific Ocean from 0862-01-01 to 2009-01-01 (NCEI Accession 0142201). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0142201. Accessed [date].
gov.noaa.nodc:0142201
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Ordering Instructions Data in this archival information package are not currently available for public download from NCEI. Please contact NCEI directly for access to these data.
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 0862-01-01 to 2009-01-01
Spatial Bounding Box Coordinates
West: -90
East: -89
South: -1.5
North: 0
Spatial Coverage Map
General Documentation
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Publication Dates
  • publication: 2016-02-16
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Pending - committed to, but not yet addressed
Data Update Frequency As needed
Supplemental Information
Submission Package ID: KJY7N8
Purpose These data include oxygen isotope values from indivdual foraminfera from multi-core KNR195-5 MC42C, collected on 4/4/2009 from 615m depth by the R/V Knorr. Also included are Mg/Ca ratios for aggregate foraminifera from the same samples. Mg/Ca ratios were used to reconstruct mean SST. Oxygen isotope values were used to reconstruct SST variability.
Use Limitations
  • Data in this archival information package are not currently available for public download from NCEI. Please contact NCEI directly for access to these data.
  • 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: Rustic, Gerald T.; Koutavas, Athanasios; Marchitto, Thomas M.; Linsley, Braddock K. (2016). Delta Oxygen-18 and SEA SURFACE TEMPERATURE collected from KNORR in Equatorial Pacific Ocean from 0862-01-01 to 2009-01-01 (NCEI Accession 0142201). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0142201. Accessed [date].
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Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science Keywords
Data Center keywords 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
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Rustic, Gerald T.; Koutavas, Athanasios; Marchitto, Thomas M.; Linsley, Braddock K. (2016). Delta Oxygen-18 and SEA SURFACE TEMPERATURE collected from KNORR in Equatorial Pacific Ocean from 0862-01-01 to 2009-01-01 (NCEI Accession 0142201). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0142201. 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.
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Lineage information for: dataset
Processing Steps
  • 2016-02-16T15:48:40Z - NCEI Accession 0142201 v1.1 was published.
    Rationale: Access to this revision of this accession has been limited, and full and open access is not available at this time. As acknowledged in NOAA Administrative Order 212-15, some data archived at NCEI may have specific access constraints that are mutually agreed upon and documented by the Data Producer / Data Provider and NCEI.
Acquisition Information (collection)
Instrument
  • mass spectrometer
Platform
  • R/V Knorr
Last Modified: 2023-01-26T19:43:57Z
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