COMNISPA II: Update of a mid-European isotope climate record, 11 ka to present

We present an update (COMNISPA II) of a precisely dated, high-resolution speleothem δ 18 O record from the Austrian Alps. COMNISPA II consists of five stalagmites from Spannagel Cave, which have comparable δ 18 O values within periods of simultaneous growth and show similar δ 18 O variations on cent...

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Bibliographic Details
Published in:The Holocene
Main Authors: Fohlmeister, Jens, Vollweiler, Nicole, Spötl, Christoph, Mangini, Augusto
Format: Article in Journal/Newspaper
Language:English
Published: SAGE Publications 2012
Subjects:
Paleontology
Earth-Surface Processes
Ecology
Archeology
Global and Planetary Change
North Atlantic
Online Access:http://dx.doi.org/10.1177/0959683612465446
http://journals.sagepub.com/doi/pdf/10.1177/0959683612465446
http://journals.sagepub.com/doi/full-xml/10.1177/0959683612465446
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Summary:We present an update (COMNISPA II) of a precisely dated, high-resolution speleothem δ 18 O record from the Austrian Alps. COMNISPA II consists of five stalagmites from Spannagel Cave, which have comparable δ 18 O values within periods of simultaneous growth and show similar δ 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 δ 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.

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