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  • Sage  (2)
  • 2010-2014  (2)
  • 1
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    COMNISPA II: Update of a mid-European isotope climate record, 11 ka to present (2013)
    Sage
    In: Holocene
    Details
    Publication Date: 2013-04-19
    Description: We present an update (COMNISPA II) of a precisely dated, high-resolution speleothem 18 O record from the Austrian Alps. COMNISPA II consists of five stalagmites from Spannagel Cave, which have comparable 18 O values within periods of simultaneous growth and show similar 18 O variations on centennial to millennial timescales. This allows combining the five stalagmites to one composite record using a newly developed statistical approach. The COMNISPA II stack differs slightly from the previous version, but is better constrained because of additional stalagmites used for the reconstruction and a more objective method used for constructing the composite record. Furthermore, the record now covers the last 11 ka and shows variations in 18 O values by about 2. As previously shown, these variations compare well with other records in central Europe and the North Atlantic, and thus reflect a large-scale climate evolution.
    Print ISSN: 0959-6836
    Electronic ISSN: 1477-0911
    Topics: Geography , Geosciences
    Published by Sage
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  • 2
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    Cuban stalagmite suggests relationship between Caribbean precipitation and the Atlantic Multidecadal Oscillation during the past 1.3 ka (2012)
    Sage
    In: Holocene
    Details
    Publication Date: 2012-11-23
    Description: Here we present the first high-resolution 18 O record of a stalagmite from western Cuba. The record reflects precipitation variability in the northwestern Caribbean during the last 1.3 ka and exhibits a correlation to the Atlantic Multidecadal Oscillation (AMO). This suggests a relationship between Caribbean rainfall intensity and North Atlantic sea-surface temperature (SST) anomalies. A potential mechanism for this relationship may be the strength of the Thermohaline Circulation (THC). For a weaker THC, lower SSTs in the North Atlantic possibly lead to a southward shift of the Intertropical Convergence Zone and drier conditions in Cuba. Thus, this Cuban stalagmite records drier conditions during cold phases in the North Atlantic such as the ‘Little Ice Age’. This study contributes to the understanding of teleconnections between North Atlantic SSTs and northern Caribbean climate variability during the past 1.3 ka.
    Print ISSN: 0959-6836
    Electronic ISSN: 1477-0911
    Topics: Geography , Geosciences
    Published by Sage
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    PAPER CURRENT
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