Klemm, Juliane Herzschuh, Ulrike and Pestryakova, Luidmila A. 2016. Vegetation, climate and lake changes over the last 7000 years at the boreal treeline in north-central Siberia. Quaternary Science Reviews, Vol. 147, p. 422.
Luoto, Tomi P. Rantala, Marttiina V. Galkin, Annukka Rautio, Milla and Nevalainen, Liisa 2016. Environmental determinants of chironomid communities in remote northern lakes across the treeline – Implications for climate change assessments. Ecological Indicators, Vol. 61, p. 991.
Luoto, Tomi P. and Nevalainen, Liisa 2016. Quantifying climate changes of the Common Era for Finland. Climate Dynamics,
Nevalainen, Liisa Kivilä, E. Henriikka and Luoto, Tomi P. 2016. Biogeochemical shifts in hydrologically divergent taiga lakes in response to late Holocene climate fluctuations. Biogeochemistry, Vol. 128, Issue. 1-2, p. 201.
Payne, Richard J. Babeshko, Kirill V. van Bellen, Simon Blackford, Jeffrey J. Booth, Robert K. Charman, Dan J. Ellershaw, Megan R. Gilbert, Daniel Hughes, Paul D.M. Jassey, Vincent E.J. Lamentowicz, Łukasz Lamentowicz, Mariusz Malysheva, Elena A. Mauquoy, Dmitri Mazei, Yuri Mitchell, Edward A.D. Swindles, Graeme T. Tsyganov, Andrey N. Turner, T. Edward and Telford, Richard J. 2016. Significance testing testate amoeba water table reconstructions. Quaternary Science Reviews, Vol. 138, p. 131.
Plikk, Anna Helmens, Karin F. Fernández-Fernández, María Kylander, Malin Löwemark, Ludvig Risberg, Jan Salonen, J. Sakari Väliranta, Minna and Weckström, Jan 2016. Development of an Eemian (MIS 5e) Interglacial palaeolake at Sokli (N Finland) inferred using multiple proxies. Palaeogeography, Palaeoclimatology, Palaeoecology, Vol. 463, p. 11.
Rantala, Marttiina V. Luoto, Tomi P. and Nevalainen, Liisa 2016. Temperature controls organic carbon sequestration in a subarctic lake. Scientific Reports, Vol. 6, p. 34780.
Fortin, Marie-Claude Medeiros, Andrew S. Gajewski, Konrad Barley, Erin M. Larocque-Tobler, Isabelle Porinchu, David F. and Wilson, Sue E. 2015. Chironomid-environment relations in northern North America. Journal of Paleolimnology, Vol. 54, Issue. 2-3, p. 223.
Luoto, TP and Nevalainen, L 2015. Late Holocene precipitation and temperature changes in Northern Europe linked with North Atlantic forcing. Climate Research, Vol. 66, Issue. 1, p. 37.
Luoto, Tomi P. Nevalainen, Liisa Kultti, Seija and Sarmaja-Korjonen, Kaarina 2015. Quantitative palaeotemperature estimates based on fossil chydorid ephippia: calibration and validation of a novel method for northern lakes. Journal of Quaternary Science, Vol. 30, Issue. 8, p. 736.
Medeiros, A.S. Gajewski, K. Porinchu, D.F. Vermaire, J.C. and Wolfe, B.B. 2015. Detecting the influence of secondary environmental gradients on chironomid-inferred paleotemperature reconstructions in northern North America. Quaternary Science Reviews, Vol. 124, p. 265.
Rantala, Marttiina V. Luoto, Tomi P. Weckström, Jan Perga, Marie-Elodie Rautio, Milla and Nevalainen, Liisa 2015. Climate controls on the Holocene development of a subarctic lake in northern Fennoscandia. Quaternary Science Reviews, Vol. 126, p. 175.
Self, A.E. Klimaschewski, A. Solovieva, N. Jones, V.J. Andrén, E. Andreev, A.A. Hammarlund, D. and Brooks, S.J. 2015. The relative influences of climate and volcanic activity on Holocene lake development inferred from a mountain lake in central Kamchatka. Global and Planetary Change, Vol. 134, p. 67.
Self, Angela E Jones, Vivienne J and Brooks, Steve J 2015. Late Holocene environmental change in arctic western Siberia. The Holocene, Vol. 25, Issue. 1, p. 150.
Väliranta, M. Salonen, J. S. Heikkilä, M. Amon, L. Helmens, K. Klimaschewski, A. Kuhry, P. Kultti, S. Poska, A. Shala, S. Veski, S. and Birks, H. H. 2015. Plant macrofossil evidence for an early onset of the Holocene summer thermal maximum in northernmost Europe. Nature Communications, Vol. 6, p. 6809.
Birks, Hilary H. Aarnes, Ingelinn Bjune, Anne E. Brooks, Stephen J. Bakke, Jostein Kühl, Norbert and Birks, H. John B. 2014. Lateglacial and early-Holocene climate variability reconstructed from multi-proxy records on Andøya, northern Norway. Quaternary Science Reviews, Vol. 89, p. 108.
Luoto, Tomi P Kaukolehto, Marjut and Nevalainen, Liisa 2014. The relationship between water and air temperature in chironomid-based paleoclimate reconstructions: Records from boreal and subarctic Finland. The Holocene, Vol. 24, Issue. 11, p. 1584.
Paleoclimate reconstructions based on biological proxies present methodological challenges, especially during non-analog conditions, such as the early Holocene. Here, two chironomid-based training sets from Finland were amalgamated to create a more accurate transfer function of summer air temperature. The aim was to reconstruct Holocene paleoclimate in northernmost Lapland, in an area that has been either too warm or too cold for reliable reconstructions using the original calibration models. The results showed that the combined calibration model had improved performance statistics. The temperature trends inferred from the downcore chironomid record using the original and combined models were very similar. However, there were major changes in their absolute values with the combined model showing greatly improved accuracy. The chironomid-based temperature reconstruction showed significant correlation with the previous pollen-based reconstructions from northwestern Finnish Lapland. However, differences were observed in the temperature trends of the early Holocene, when the chironomid-inferred temperatures rapidly increased, but the pollen-based reconstructions lagged behind suggesting that a cool climate continued for much longer. However, similar to the chironomid record, new plant macrofossil evidence from northwestern Finland also showed warmer-than-present early Holocene temperatures. Therefore, we conclude that the early Holocene was probably warm in northern Lapland.
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