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)
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.
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].
Dataset Identifiers
ISO 19115-2 Metadata
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
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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. |
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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 |
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Last Modified: 2023-01-26T19:43:57Z
For questions about the information on this page, please email: ncei.info@noaa.gov
For questions about the information on this page, please email: ncei.info@noaa.gov