noaa-lakelevel-22213 Eastern Finland 1,000 Year Lake Level Reconstructions Nevalainen, L.; Helama, S.; Luoto, T.P. Eastern Finland 1,000 Year Lake Level Reconstructions 2017-06-06 NCDC-Paleoclimatology ONLINE Files Pending https://www.ncdc.noaa.gov/paleo/study/22213 Investigator L. Nevalainen Investigator S. Helama Investigator T.P. Luoto earth science paleoclimate climate reconstructions|lake levels|paleolimnology depth,null,null,centimeter,null,climate reconstructions|lake levels|paleolimnology,null,null,N,null earth science paleoclimate climate reconstructions|lake levels|paleolimnology lake level,null,null,meter,null,climate reconstructions|lake levels|paleolimnology,null,null,N,cladoceran transfer function earth science paleoclimate climate reconstructions|paleolimnology streamflow,midge assemblage,null,meter,null,climate reconstructions|paleolimnology,null,null,N,null earth science paleoclimate climate reconstructions|lake levels|paleolimnology age,null,null,year Common Era,null,climate reconstructions|lake levels|paleolimnology,null,null,N,null earth science paleoclimate lake levels geoscientificInformation 470 AD 1990 AD 1480 cal yr BP -40 cal yr BP Complete 64.2833 64.2833 30.1167 30.1167 188 188 Continent Europe Northern Europe Scandanavia Finland Pieni-Kauro>LATITUDE 64.2833>LONGITUDE 30.1167 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 Liisa Nevalainen, Samuli Helama, Tomi P. Luoto 2013 Palaeogeography, Palaeoclimatology, Palaeoecology 378 13-21 10.1016/j.palaeo.2013.03.016 Tomi P. Luoto, Samuli Helama 2010 Quaternary Science Reviews 29 17-18 2411-2423 10.1016/j.quascirev.2010.06.015 http://www.sciencedirect.com/science/article/pii/S027737911000209X

Future climate warming is expected to alter atmospheric moisture balance and therefore paleoclimatic archives of past moisture and hydrological patterns may provide understanding of the magnitude, speed, and ecosystem responses to the regionally altered climatic regimes. The present study aimed at disentangling millennial variation in hydroclimatic parameters, including summer effective moisture (lake levels) and ice-free season by using sedimentary cladoceran fossils. We used a site-specific cladoceran-based inference model to reconstruct lake level fluctuations in a 1500-yr sediment record from Lake Pieni-Kauro, eastern Finland in the context of previously established paleoclimatic data of summer temperature and precipitation. In addition, we applied cladoceran planktonic/littoral ratio, mean body size, and abundance of fossil ephippia as supplementary proxies for paleoclimatic interpretations. The results showed that lake level was lower during the pre- and early Medieval Climate Anomaly (MCA, around 500-1000 AD) than at present and started to rise toward the culmination during the Little Ice Age (LIA, around 1600–1700 AD) when the lake level was higher than at present. Pelagic cladoceran body size was larger and abundance of ephippia increased during the LIA suggesting significant reduction in the length of the ice-free season and lower water temperatures. Comparison of the lake level reconstruction with the previous paleoclimatic data suggested that effective moisture has had a long-term negative relationship with temperature and positive relationship with summer precipitation in eastern Finland. The results indicated that the pre- and early MCA was warm and dry (long ice-free season, low summer effective moisture) and the culmination of the LIA was cool and moist (reduced ice-free season, increased summer effective moisture). Unraveling the seasonality of the multicentury hydroclimatic patterns in eastern Finland may offer important insights in linking the large-scale atmospheric circulation patterns to seasonal climate events. STUDY NOTES: Lake level reconstructions based on sedimentary cladoceran fossils

GET DATA https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/lakelevels/europe/finland/pieni-kauro2013.txt Formatted Text Data File; Pieni-Kauro Cladocera Water Level and Chironomid Streamflow Reconstructions USA/NOAA DIF Version 9.8.4 2018-12-11 2018-12-11