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Award ID contains: 2031929

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  1. ; ; ; (, Nature Geoscience)
    Abstract Precise measurements of dissolved noble gases along the GP15 GEOTRACES Pacific Meridional Transect reveal the oldest northern bottom waters equilibrated with the atmosphere at a higher barometric pressure than more recent waters. Here, using a radiocarbon-calibrated multi-tracer-based diagnostic model, we reconstruct the magnitude and timing of this palaeo-barometric pressure anomaly. We hypothesize this multi-millennial trend in sea-level pressure results from local and regional processes extant in Antarctic Bottom Water formation regions. 
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  2. ; ; ; (, Science)
    Instrumental observations of subsurface ocean warming imply that ocean heat uptake has slowed 20th-century surface warming. We present high-resolution records from subpolar North Atlantic sediments that are consistent with instrumental observations of surface and deep warming/freshening and in addition reconstruct the surface-deep relation of the last 1200 years. Sites from ~1300 meters and deeper suggest an ~0.5 degrees celsius cooling across the Medieval Climate Anomaly to Little Ice Age transition that began ~1350 ± 50 common era (CE), whereas surface records suggest asynchronous cooling onset spanning ~600 years. These data suggest that ocean circulation integrates surface variability that is transmitted rapidly to depth by the Atlantic Meridional Ocean Circulation, implying that the ocean moderated Earth’s surface temperature throughout the last millennium as it does today. 
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    Full Text Available 
  3. ; ; ; (, NOAA National Centers for Environmental Information)
    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 paleocean (oxygen isotopes) with a geographic location of North Atlantic Ocean. The time period coverage is from 2179 to -63 in calendar years before present (BP). See metadata information for parameter and study location details. Please cite this study when using the data. 
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  4. ; ; ; (, Zenodo)
    Data published in Lu et al. 2023 and R script repository to reproduce published figures. Lu W., D. W. Oppo, G. Gebbie, D. J. R. Thornalley, Surface climate signals transmitted rapidly to deep North Atlantic throughout last millennium. Science, 382, 834-839 https://doi.org/10.1126/science.adf1646. 
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