Vuoksjávrátje, Sweden 5100 Year Chironomid and Geochemical Data Berntsson, A.; Jansson, K.N.; Kylander, M.E.; De Vleeschouwer, F.; Bertrand, S. Berntsson, A. Jansson, K.N. Kylander, M.E. De Vleeschouwer, F. Bertrand, S. earth science/paleoclimate/paleolimnology (age,null,null,calendar year before present,null,paleolimnology,null,null,N,mid of sample depth; using AMS radiocarbon and Lead 210; Modelled ages - see Chronology) earth science/paleoclimate/insect|paleolimnology (midge index,null,null,percent,null,insect|paleolimnology,null,null,N,Terrestrial and semi-terrestrial taxa (indicating terrestrial erosion/sheetflow erosion); For classification used see original publication.) earth science/paleoclimate/insect|paleolimnology (midge index,null,null,percent,null,insect|paleolimnology,null,null,N,Combined rheophilic and terrestrial/semi-terrestrial taxa; For classification used see original publication.) earth science/paleoclimate/insect|paleolimnology (midge index,null,null,percent,null,insect|paleolimnology,null,null,N,Rheophilic taxa (indicating fluvial erosion); For classification used see original publication.) earth science/paleoclimate/insect|paleolimnology (depth,null,null,centimeter,null,insect|paleolimnology,null,null,N,mid of sample depth interval; Note that sediments between 185 and 207 were instantaneously deposited as the result of a flood event.) earth science/paleoclimate/insect|paleolimnology (age,null,null,calendar year before present,null,insect|paleolimnology,null,null,N,mid of sample depth; using AMS radiocarbon and Lead 210; Modelled ages - see Chronology) earth science/paleoclimate/paleolimnology (depth,null,null,centimeter,null,paleolimnology,null,null,N,mid of sample depth interval; Note that sediments between 185 and 207 were instantaneously deposited as the result of a flood event.) earth science/paleoclimate/paleolimnology (silicon/titanium,sediment,null,count per second,null,paleolimnology,null,x-ray fluorescence spectroscopy,N,ITRAX core scanner data - see original publication for details on data handling.) earth science/paleoclimate/paleolimnology earth science/paleoclimate/paleolimnology (Vuoksjávrátje>LATITUDE 66.249>LONGITUDE 15.718) In this paper, we show the potential of combining multi-proxy analysis of lake sediments with catchment geomorphology to better understand palaeoenvironmental changes. Previous studies have suggested that alpine lakes in N Sweden may be highly sensitive to variations in catchment erosion and precipitation, and that this sensitivity may influence ecologically based reconstructions of past temperature changes. We analysed lake sediments covering the last 5100 years from the alpine Lake Vuoksjávrátje in NW Sweden in order to identify different erosional regimes in the lake catchment, sediment sources and lake sedimentary processes, which ultimately affect the palaeoecological record. The measured proxies include elemental geochemistry from XRF core scanning, grain size, sediment accumulation rates, fraction of terrestrial organic carbon and geomorphological mapping, supported by previously published chironomid and total organic carbon data. From the integrated results we identified time intervals when increased intensity of precipitation altered sedimentation and lake catchment erosional processes. The most prominent event occurred c. 2900 cal. a BP and is interpreted to be the result of excessive precipitation, possibly related to the climatic shift towards cooler and wetter conditions referred to as the 2.8 ka event. NCDC-Paleoclimatology https://www.ncdc.noaa.gov/data-access/paleoclimatology-data - Bauer Bruce Investigator : Berntsson, A. Investigator : Jansson, K.N. Investigator : Kylander, M.E. Investigator : De Vleeschouwer, F. Investigator : Bertrand, S. 2017-06-14 ONLINE Files online, ASCII https://www.ncdc.noaa.gov/paleo/study/22253 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/sweden/vuoksjavratje2015si-ti.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/sweden/vuoksjavratje2015chiron.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/sweden/vuoksjavratje2015si-ti.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/sweden/vuoksjavratje2015chiron.txt English https://www.ncdc.noaa.gov/paleo/study/22253 https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/sweden/vuoksjavratje2015si-ti.txt https://www1.ncdc.noaa.gov/pub/data/paleo/paleolimnology/europe/sweden/vuoksjavratje2015chiron.txt Annika Berntsson, Krister N. Jansson, Malin E. Kylander, Francois De Vleeschouwer and Sebastien Bertrand2015Late Holocene high precipitation events recorded in lake sediments and catchment geomorphology, Lake Vuoksjávrátje, NW SwedenBoreas444676-69210.1111/bor.12127http://onlinelibrary.wiley.com/doi/10.1111/bor.12127/full START YEAR: 5035 cal yr BP * END YEAR: -57 cal yr BP 15.718 66.249 15.718 66.249