Swierczynski, Tina; Brauer, Achim; Lauterbach, Stefan; Martín-Puertas, Celia; Dulski, Peter; von Grafenstein, Ulrich; Rohr, Christian (2012): Age, event layer thickness and titanium µXRF counts of sediment core Mo05 obtained from Lake Mondsee, Austria [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.783935, Supplement to: Swierczynski, T et al. (2012): A 1600 yr seasonally resolved record of decadal-scale flood variability from the Austrian Pre-Alps. Geology, 40(11), 1047-1050, https://doi.org/10.1130/G33493.1
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Abstract:
We present a record of extreme spring-summer runoff events for the past 1600 yr preserved in the varved sediments of Lake Mondsee (Austrian Pre-Alps). Combined sediment microfacies analyses and high-resolution micro-X-ray fluorescence element scanning allow us to identify 157 detrital event layers deposited in spring-summer and to discriminate between regional flood and local debris flow deposits. Higher spring-summer flood activity with a mean event recurrence of 3-5 yr occurred in several well-confined multidecadal episodes during the Dark Ages Cold Period and Medieval time (A.D. 450-480, 590-640, 700-750, and 1140-1170) as well as during the early Little Ice Age (LIA; A.D. 1300-1330 and 1480-1520). In contrast, lowest spring-summer flood activity with an event recurrence of only 30-100 yr is observed during the Medieval Climate Anomaly (A.D. 1180-1300) and the coldest interval of the LIA (A.D. 1600-1700). These findings indicate a complex relationship between temperature conditions and extreme hydro-meteorological events and suggest that enhanced summer Mediterranean cyclogenesis triggers large-scale floods in the northeast Alps during climatic transitions. The Lake Mondsee data demonstrate the climatic sensitivity of spring-summer floods and prove the potential of varved sediment records to investigate the impact of changing climate boundary conditions on seasonal flood activity for pre-instrumental time.
Project(s):
Coverage:
Latitude: 47.811400 * Longitude: 13.402500
Event(s):
Mo05 * Latitude: 47.811400 * Longitude: 13.402500 * Elevation: 481.0 m * Lake water depth: 62 m * Recovery: 15 m * Location: Lake Mondsee, European Alps * Method/Device: Piston corer, UWITEC (PCUWI) * Comment: Composite profile consisting of two parallel cores Mo05_01 and Mo05_P3/Mo05_02 (13.89 and 11.72 m); DEPTH are given as composite depth.
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
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2 datasets
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Datasets listed in this publication series
- Swierczynski, T; Brauer, A; Lauterbach, S et al. (2012): Age and thickness of event layers in composite sediment core Mo05 obtained from Lake Mondsee. https://doi.org/10.1594/PANGAEA.783934
- Swierczynski, T; Brauer, A; Lauterbach, S et al. (2012): Age and titanium µXRF counts in composite sediment core Mo05 obtained from Lake Mondsee. https://doi.org/10.1594/PANGAEA.783933