NOAA/WDS Paleoclimatology - Northwest Atlantic and Indo-Pacific Southern Ocean deep-sea coral U/Th, 14C, and D47 data for the past 35,000 years
This archived Paleoclimatology Study is available from the NOAA National Centers for Environmental Information (NCEI), under the World Data Service (WDS) for Paleoclimatology. The associated NCEI study type is Paleoceanography. The data include parameters of corals and sclerosponges|paleoceanography with a geographic location of South Pacific Ocean. The time period coverage is from 33730 to 8981 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data.
- Cite as: Hines, S.K.V.; Eiler, J.M.; Southon, J.R.; Adkins, J.F. (2019-11-29): NOAA/WDS Paleoclimatology - Northwest Atlantic and Indo-Pacific Southern Ocean deep-sea coral U/Th, 14C, and D47 data for the past 35,000 years. [indicate subset used]. NOAA National Centers for Environmental Information. https://doi.org/10.25921/c6q4-xv22. Accessed [date].
- Please refer to Credit tab for full citation information.
- doi:10.25921/c6q4-xv22
- noaa-ocean-28470
- NCEI DSI 1200_02
- NCEI DSI 1200_01
noaa-ocean-28470
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Distributor | NOAA National Centers for Environmental Information
ncei.info@noaa.gov |
Dataset Point of Contact | NOAA National Centers for Environmental Information
ncei.info@noaa.gov |
Dataset Point of Contact | Data Center Contact
NOAA World Data Service for Paleoclimatology 828-271-4800 paleo@noaa.gov |
Coverage Description | Date Range: 33730 cal yr BP to 8981 cal yr BP; |
Time Period | -31780 to -7031 |
Spatial Bounding Box Coordinates |
N: 48.671
S: -54.817
E: 167.633
W: -72.693
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Data Presentation Form | Digital table - digital representation of facts or figures systematically displayed, especially in columns
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Dataset Progress Status | Complete - production of the data has been completed |
Data Update Frequency | Data update frequency not available |
Supplemental Information |
STUDY NOTES: Deep-sea coral radiocarbon and clumped-isotope temperature records from South of Tasmania and the New England/Corner Rise Seamounts in the Northwest Atlantic. Modern Desmophyllum dianthus clumped isotope calibration
ABSTRACT SUPPLIED BY ORIGINATOR: Paired radiocarbon and clumped isotope temperature records from U/Th-dated Desmophyllum dianthus corals in the North Atlantic and Southern Ocean provide unique information about the history of intermediate waters (~1,500-1,700 m) across the late glacial and deglaciation (~35-10 ka). These measurements allow for the construction of radiocarbon-temperature crossplots, which help to identify water mass endmembers at different times across the deglaciation. Radiocarbon and temperature values from the late glacial fall outside the range of modern ocean data from near the sample collection sites. In the North Atlantic, radiocarbon values tend to be much older than the modern, while in the Southern Ocean, they are more often younger than the modern. Reconstructed temperatures vary around respective modern ocean values; however, warm waters are observed at the Last Glacial Maximum and across the deglaciation in the north and south. We interpret our data in the context of the modern hydrography of the Western North Atlantic and Southern Ocean, and we draw upon direct comparisons between sediment core-derived reconstructions of ocean circulation from the South Indo-Pacific and our deep-sea coral data from the Southern Ocean. Our North Atlantic data support accepted patterns of reduced North Atlantic Deep Water formation during Heinrich Stadials 1 and 2. In the Southern Ocean, deep-sea coral populations respond to changes in ocean structure that are also reflected in a depth profile of d13C data from New Zealand, and data indicate that there was less influence of Pacific Deep Water between 1,500 and 1,700 m south of Tasmania across much of the deglaciation |
Purpose | Records of past climate and ocean circulation derived from marine sediments. Parameter keywords describe what was measured in this dataset. Additional summary information can be found in the abstracts of papers listed in the dataset citations. |
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Theme keywords | Global Change Master Directory (GCMD) Science Keywords
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Data Center keywords | Global Change Master Directory (GCMD) Data Center Keywords
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Last Modified: 2023-09-01
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