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Reconstructing hemispheric-scale climates from multiple stalagmite records

Figure 1. Northern Hemisphere mean annual temperature reconstructions
Figure 1. Northern Hemisphere mean annual temperature reconstructions, smoothed with a 20-year low-pass filter for the past 500 years with the speleothem reconstruction shown with 2 standard error intervals (shaded area)

Reconstructing hemispheric-scale climates from multiple stalagmite records.
International Journal of Climatology
Vol. 26, Issue 10, pp. 1417 - 1424, Aug. 2006

Claire L. Smith1, Andy Baker1, Ian J. Fairchild1, Silvia Frisia2, and Andrea Borsato2

1 School of Geography, Earth and Environmental Science, University of Birmingham, Edgbaston, B15 2TT
2 Museo Tridentino di Scienze Naturali, via Calepina 14, 38100 Trento, Italy
The magnitude of recent warming, and the variability of climate on centennial- millennial time scales are compromised by questions concerning the ability of tree rings to capture low-frequency climate fluctuations. Annually laminated stalagmite records can potentially provide a low-frequency climate archive through variations in annual growth rate. Presented here is an initial attempt to demonstrate the applicability of annually laminated stalagmite series to a large-scale climate reconstruction, by producing a 500-year Northern Hemisphere temperature reconstruction. The reconstruction shows an overall warming trend with a magnitude of 0.65 K and several other low-frequency characteristics consistent with other independent Northern Hemisphere archives. The result is sufficiently encouraging to warrant significant future effort in characterising annual growth rate records from laminated speleothems.
Download data from the WDC Paleo archive:
500-year Northern Hemisphere Speleothem Temperature Reconstruction in Text or Microsoft Excel format.

To read or view the full study, please visit the Wiley InterScience website.
It was published in International Journal of Climatology, Vol. 26, Issue 10, pp. 1417 - 1424, Aug. 2006.
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