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  • 162-980; Age, 14C AMS; Age, 14C calibrated, CALIB 6.0 (Reimer et al., 2009); Age, comment; Age, dated; Age, dated material; Age, dated standard deviation; Calendar age; COMPCORE; Composite Core; DEPTH, sediment/rock; Joides Resolution; Leg162; Ocean Drilling Program; ODP; South Atlantic Ocean  (1)
  • 306-U1313; CALYPSO; Calypso Corer; COMPCORE; Composite Core; Exp306; GEOSCIENCES, MARMARCORE; Iberian slope; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; Marion Dufresne (1995); MD01-2446; MD03-2699; MD123; MD134; North Atlantic Climate 2; PICABIA  (1)
  • Indian monsoon
  • Millennial- scale climate changes
  • 2010-2014  (3)
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Keywords
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Year
  • 1
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    The influence of Indian Ocean atmospheric circulation on Warm Pool hydroclimate during the Holocene epoch (2012)
    American Geophysical Union
    Details
    Publication Date: 2022-05-25
    Description: Author Posting. © American Geophysical Union, 2012. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research 117 (2012): D19108, doi:10.1029/2012JD018060.
    Description: Existing paleoclimate data suggest a complex evolution of hydroclimate within the Indo-Pacific Warm Pool (IPWP) during the Holocene epoch. Here we introduce a new leaf wax isotope record from Sulawesi, Indonesia and compare proxy water isotope data with ocean-atmosphere general circulation model (OAGCM) simulations to identify mechanisms influencing Holocene IPWP hydroclimate. Modeling simulations suggest that orbital forcing causes heterogenous changes in precipitation across the IPWP on a seasonal basis that may account for the differences in time-evolution of the proxy data at respective sites. Both the proxies and simulations suggest that precipitation variability during the September–November (SON) season is important for hydroclimate in Borneo. The preëminence of the SON season suggests that a seasonally lagged relationship between the Indian
    Description: J. Tierney acknowledges the NOAA Climate and Global Change Postdoctoral Fellowship for support.
    Description: 2013-04-04
    Keywords: Holocene climate ; Indian monsoon ; Indo-Pacific warm pool ; Leaf waxes ; Stable isotopes ; Walker circulation
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: application/pdf
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    PAPER (OA)
  • 2
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    (Table 1) Age determination of ODP Site 162-980 (2010)
    PANGAEA
    In:  Supplement to: Benway, Heather M; McManus, Jerry F; Oppo, Delia W; Cullen, James L (2010): Hydrographic changes in the eastern subpolar North Atlantic during the last deglaciation. Quaternary Science Reviews, 29(23-24), 3336-3345, https://doi.org/10.1016/j.quascirev.2010.08.013
    Details
    Publication Date: 2024-03-02
    Description: Millennial-scale climate fluctuations of the last deglaciation have been tied to abrupt changes in the Atlantic Meridional Overturning Circulation (MOC). A key to understanding mechanisms of MOC collapse and recovery is the documentation of upper ocean hydrographic changes in the vicinity of North Atlantic deep convection sites. Here we present new high-resolution ocean temperature and d18Osw records spanning the last deglaciation from an eastern subpolar North Atlantic site that lies along the flow path of the North Atlantic Current, approaching deep convection sites in the Labrador and Greenland-Iceland-Norwegian (GIN) Seas. High-resolution temperature and d18Osw records from subpolar Site 980 help track the movement of the subpolar/subtropical front associated with temperature and Atlantic MOC changes throughout the last deglaciation. Distinct d18Osw minima during Heinrich 1 (H1) and the Younger Dryas (YD) correspond with peaks in ice-rafted debris and periods of reduced Atlantic MOC, indicating the presence of melt water in this region that could have contributed to MOC reductions during these intervals. Increased tropical and subtropical d18Osw during these periods of apparent freshening in the subpolar North Atlantic suggest a buildup of salt at low latitudes that served as a negative feedback on reduced Atlantic MOC.
    Keywords: 162-980; Age, 14C AMS; Age, 14C calibrated, CALIB 6.0 (Reimer et al., 2009); Age, comment; Age, dated; Age, dated material; Age, dated standard deviation; Calendar age; COMPCORE; Composite Core; DEPTH, sediment/rock; Joides Resolution; Leg162; Ocean Drilling Program; ODP; South Atlantic Ocean
    Type: Dataset
    Format: text/tab-separated-values, 155 data points
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    DATA PANGAEA
  • 3
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    Stable isotope record and lithic fragments distribution in sediments of MIS9-14 of the North Atlantic (2010)
    PANGAEA
    In:  Supplement to: Voelker, Antje H L; Rodrigues, Teresa; Billups, Katharina; Oppo, Delia W; McManus, Jerry F; Stein, Ruediger; Hefter, Jens; Grimalt, Joan O (2010): Variations in mid-latitude North Atlantic surface water properties during the mid-Brunhes (MIS 9-14) and their implications for the thermohaline circulation. Climate of the Past, 6(4), 531-552, https://doi.org/10.5194/cp-6-531-2010
    Details
    Publication Date: 2024-03-02
    Description: Stable isotope and ice-rafted debris records from three core sites in the mid-latitude North Atlantic (IODP Site U1313, MD01-2446, MD03-2699) are combined with records of ODP Sites 1056/1058 and 980 to reconstruct hydrographic conditions during the middle Pleistocene spanning Marine Isotope Stages (MIS) 9-14 (300-540 ka). Core MD03-2699 is the first high-resolution mid-Brunhes record from the North Atlantic's eastern boundary upwelling system covering the complete MIS 11c interval and MIS 13. The array of sites reflect western and eastern basin boundary current as well as north to south transect sampling of subpolar and transitional water masses and allow the reconstruction of transport pathways in the upper limb of the North Atlantic's circulation. Hydrographic conditions in the surface and deep ocean during peak interglacial MIS 9 and 11 were similar among all the sites with relative stable conditions and confirm prolonged warmth during MIS 11c also for the mid-latitudes. Sea surface temperature (SST) reconstructions further reveal that in the mid-latitude North Atlantic MIS 11c is associated with two plateaus, the younger one of which is slightly warmer. Enhanced subsurface northward heat transport in the eastern boundary current system, especially during early MIS 11c, is denoted by the presence of tropical planktic foraminifer species and raises the question how strongly it impacted the Portuguese upwelling system. Deep water ventilation at the onset of MIS 11c significantly preceded surface water ventilation. Although MIS 13 was generally colder and more variable than the younger interglacials the surface water circulation scheme was the same. The greatest differences between the sites existed during the glacial inceptions and glacials. Then a north - south trending hydrographic front separated the nearshore and offshore waters off Portugal. While offshore waters originated from the North Atlantic Current as indicated by the similarities between the records of IODP Site U1313, ODP Site 980 and MD01-2446, nearshore waters as recorded in core MD03-2699 derived from the Azores Current and thus the subtropical gyre. Except for MIS 12, Azores Current influence seems to be related to eastern boundary system dynamics and not to changes in the Atlantic overturning circulation.
    Keywords: 306-U1313; CALYPSO; Calypso Corer; COMPCORE; Composite Core; Exp306; GEOSCIENCES, MARMARCORE; Iberian slope; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; Marion Dufresne (1995); MD01-2446; MD03-2699; MD123; MD134; North Atlantic Climate 2; PICABIA
    Type: Dataset
    Format: application/zip, 12 datasets
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    DATA PANGAEA
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