noaa-recon-15854 Hinterburgsee, Switzerland 13,000 Year Chironomid-inferred July Temperature Heiri, O.; Lotter, A.F.; Hausmann, S.; Kienast, F. Hinterburgsee, Switzerland 13,000 Year Chironomid-inferred July Temperature 2014-01-02 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/15854 Investigator O. Heiri Investigator A.F. Lotter Investigator S. Hausmann Investigator F. Kienast earth science paleoclimate climate reconstructions|insect|paleolimnology age,null,null,count,null,climate reconstructions|insect|paleolimnology,null,null,N,null earth science paleoclimate climate reconstructions|insect|paleolimnology depth,null,null,centimeter,null,climate reconstructions|insect|paleolimnology,null,null,N,null earth science paleoclimate climate reconstructions|insect|paleolimnology surface air temperature,midge assemblage,null,degree Celsius,Jul,climate reconstructions|insect|paleolimnology,smoothed,null,N,transfer function based reconstruction and loess smoothing (span=0.1) earth science paleoclimate climate reconstructions|insect|paleolimnology surface air temperature,midge assemblage,null,degree Celsius,Jul,climate reconstructions|insect|paleolimnology,null,null,N,chironomid transfer function based reconstruction earth science paleoclimate climate reconstructions|insect|paleolimnology surface air temperature,midge assemblage,unspecified margin of error,degree Celsius,Jul,climate reconstructions|insect|paleolimnology,null,null,N,chironomid transfer function reconstruction error earth science paleoclimate climate reconstructions|insect|paleolimnology age,null,null,calendar year before present,null,climate reconstructions|insect|paleolimnology,null,null,N,null earth science paleoclimate reconstructions air temperature geoscientificInformation Air Temperature Reconstruction temperature 12901 cal yr BP -41 cal yr BP Complete 46.7186 46.7186 8.0686 8.0686 1515 1515 Continent Europe Western Europe Switzerland Hinterburgsee>LATITUDE 46.7186>LONGITUDE 8.0686 None Please cite original publication, online resource, dataset and publication DOIs (where available), and date accessed when using downloaded data. If there is no publication information, please cite investigator, title, online resource, and date accessed. The appearance of external links associated with a dataset does not constitute endorsement by the Department of Commerce/National Oceanic and Atmospheric Administration of external Web sites or the information, products or services contained therein. For other than authorized activities, the Department of Commerce/NOAA does not exercise any editorial control over the information you may find at these locations. These links are provided consistent with the stated purpose of this Department of Commerce/NOAA Web site. English DOC/NOAA/NESDIS/NCEI National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce https://www.ncdc.noaa.gov/data-access/paleoclimatology-data DATA Center Contact Bruce Bauer bruce.a.bauer@noaa.gov paleo@noaa.gov 303-497-6280 303-497-6513

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Boulder CO 80305-3328 USA online ASCII Oliver Heiri, André F. Lotter, Sonja Hausmann, and Felix Kienast 2003 The Holocene 13 4 477-484 10.1191/0959683603hl640ft http://hol.sagepub.com/content/13/4/477.abstract

We developed a quantitative chironomid-July air temperature inference model based on surface sediments from 81 Swiss lakes and applied it to the Holocene subfossil chironomid record of Hinterburgsee, a small subalpine lake in the northern Swiss Alps (present-day mean July air temperature of 11.3°C). After smoothing to reduce the high between-sample variability of inferred temperatures, the reconstruction indicates July air temperatures of 10.4- 10.9°C at the end of the Younger Dryas, of 11.9-12.8°C during the early and mid-Holocene (11500-4000 cal. BP), and slightly lower temperatures of 11.5-12.0°C during the late Holocene (3500-1000 cal. BP). A warming trend inferred for the past millennium is most likely an artifact of human impact on Hinterburgsee's chironomid fauna, rather than a genuine temperature signal. The most prominent climatological events during the Holocene were two periods of lower temperatures at c. 10700-10500 cal. BP and 8200-7700 cal. BP and an abrupt shift to a cooler late-Holocene climate around 4000-3700 cal. BP. Although the chironomid-inferred climate signals were within the prediction error of the model (1.51°C), major inferred temperature changes agree well with other northern and central European climate reconstructions and underline the potential of subfossil chironomid analysis to reconstruct even the moderate climatic changes within the Holocene. STUDY NOTES: Chironomid-inferred July temperature estimates for Hinterburgsee, Switzerland for the past ~13,000 years. A quantitative chironomid-July air temperature inference model based on surface sediments from 81 Swiss lakes was applied to the subfossil chironomid record of Hinterburgsee, a small subalpine lake in the northern Swiss Alps. The chironomid inferred July air temperature estimated standard error of prediction (Root mean square) is 1.51°C.

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/switzerland/hinterburgsee2003temp-smoothed.txt Smoothed Temperature Reconstruction; Smoothed Reconstruction Text File GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/switzerland/hinterburgsee2003temp.txt Raw Temperature Reconstruction; Raw Reconstruction Text File USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11