Sieben Hengste Cave, Switzerland LGM Stalagmite Oxygen Isotope Data Luetscher, M.; Boch, R.; Sodemann, H.; Spötl, C.; Cheng, H.; Edwards, R.L.; Frisia, S.; Hof, F.; Müller, W. Luetscher, M. Boch, R. Sodemann, H. Spötl, C. Cheng, H. Edwards, R.L. Frisia, S. Hof, F. Müller, W. Last Glacial Maximum earth science/paleoclimate/speleothems (depth,null,null,millimeter,null,speleothems,null,null,N,null) earth science/paleoclimate/speleothems (age,null,null,calendar kiloyear before present,null,speleothems,null,null,N,present defined as 2000 CE) earth science/paleoclimate/speleothems (delta 18O,calcium carbonate,null,per mil VPDB,null,speleothems,composited,isotope ratio mass spectrometry,N,averaged from multiple samples) earth science/paleoclimate/speleothems (delta 18O,calcium carbonate,null,per mil VPDB,null,speleothems,raw,isotope ratio mass spectrometry,N,null) earth science/paleoclimate/speleothems (age,null,95% confidence interval upper bound,calendar kiloyear before present,null,speleothems,null,null,N,present defined as 2000 CE) earth science/paleoclimate/speleothems (age,null,95% confidence interval lower bound,calendar kiloyear before present,null,speleothems,null,null,N,present defined as 2000 CE) earth science/paleoclimate/speleothems (Sieben Hengste Cave>LATITUDE 46.77>LONGITUDE 7.83) The European Alps are an effective barrier for meridional moisture transport and are thus uniquely placed to record shifts in the North Atlantic storm track pattern associated with the waxing and waning of Late-Pleistocene Northern Hemisphere ice sheets. The lack of well-dated terrestrial proxy records spanning this time period, however, renders the reconstruction of past atmospheric patterns difficult. Here we present a precisely dated, continuous terrestrial record of meteoric precipitation in Europe between 30 and 14.7 ka. In contrast to present-day conditions, our speleothem data provide strong evidence for preferential advection of moisture from the South across the Alps supporting a southward shift of the storm track during the local Last Glacial Maximum (that is, 26.5-23.5 ka). Moreover, our age control indicates that this circulation pattern preceded the Northern Hemisphere precession maximum by ~3 ka, suggesting that obliquity may have played a considerable role in the Alpine ice aggradation. STUDY NOTES: Oxygen isotope (d18O) data from two alpine stalagmites from Sieben Hengste Cave, Switzerland. The d18O data were combined to get a continuous record of meteoric precipitation between 30 and 14.7 ka. Results provide strong evidence for moisture advection from the South during the Last Glacial maximum, supporting a southward shift of the storm track. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Luetscher, M. Investigator : Boch, R. Investigator : Sodemann, H. Investigator : Spötl, C. Investigator : Cheng, H. Investigator : Edwards, R.L. Investigator : Frisia, S. Investigator : Hof, F. Investigator : Müller, W. 2015-03-03 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/18115 https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/switzerland/sieben-hengste2015.xlsx https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/switzerland/sieben-hengste2015iso7h2.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/switzerland/sieben-hengste2015iso7h3.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/switzerland/sieben-hengste2015iso7h.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/switzerland/sieben-hengste2015.xlsx https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/switzerland/sieben-hengste2015iso7h2.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/switzerland/sieben-hengste2015iso7h3.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/switzerland/sieben-hengste2015iso7h.txt English https://www.ncdc.noaa.gov/paleo/study/18115 https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/switzerland/sieben-hengste2015.xlsx https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/switzerland/sieben-hengste2015iso7h2.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/switzerland/sieben-hengste2015iso7h3.txt https://www1.ncdc.noaa.gov/pub/data/paleo/speleothem/europe/switzerland/sieben-hengste2015iso7h.txt Marc Luetscher, R. Boch, H. Sodemann, C. Spötl, H. Cheng, R. L. Edwards, S. Frisia, F. Hof, W. Müller2015North Atlantic storm track changes during the Last Glacial Maximum recorded by Alpine speleothemsNature Communications6634410.1038/ncomms7344http://www.nature.com/ncomms/2015/150227/ncomms7344/full/ncomms7344.html START YEAR: 29959 cal yr BP * END YEAR: 14663 cal yr BP 7.83 46.77 7.83 46.77