Pollen-based palaeoclimate reconstructions over long glacialinterglacial timescales: methodological tests based on the Holocene and MIS 5dc deposits at Sokli, northern Finland

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Fältnamn	Indikatorer	Metadata
000		03184naa a2200397 4500
001		oai:DiVA.org:su-90381
003		SwePub
008		130603s2013 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-903812 URI
024	7	a https://doi.org/10.1002/jqs.26112 DOI
040		a (SwePub)su
041		a engb eng
042		9 SwePub
072	7	a ref2 swepub-contenttype
072	7	a art2 swepub-publicationtype
100	1	a Salonen, J. Sakari4 aut
245	1 0	a Pollen-based palaeoclimate reconstructions over long glacialinterglacial timescales :b methodological tests based on the Holocene and MIS 5dc deposits at Sokli, northern Finland
264		c 2013-03-13
264	1	b Wiley,c 2013
338		a print2 rdacarrier
500		a AuthorCount:4;
520		a Palaeoclimatic reconstructions over long glacialinterglacial timescales present major methodological challenges, as calibration methods based on modern climate and vegetation patterns may yield biased reconstructions from non-analogue palaeoclimates, such as severely continental glacial periods. In this work, we present pollen-based summer temperature reconstructions based on Holocene and early Weichselian (Marine Isotope Stages (MIS) 5dc) deposits at Sokli, northern Finland. We attempt to improve the robustness of reconstructions of continental palaeoclimates by using two calibration sets, with one located in the region surrounding the fossil site and another in a more continental region in northwestern Russia. We assess the reliability of the reconstructions by estimating the compositional fit between fossil and calibration samples and by comparison with independent, plant macrofossil-based reconstructions. We find the fossil samples to fit the extra-regional, high-continentality calibration set better during the early Holocene and MIS 5dc. Especially in MIS 5dc, however, even the high-continentality calibration set fits the fossil samples poorly compared to the fit achieved in the mid and late Holocene. Thus our results highlight the problem of finding applicable calibration data for pre-Holocene periods. We finally discuss the relative strengths and vulnerabilities of different calibration methods in reconstruction of non-analogue palaeoclimates.
650	7	a NATURVETENSKAPx Geovetenskap och miljövetenskapx Geologi0 (SwePub)105042 hsv//swe
650	7	a NATURAL SCIENCESx Earth and Related Environmental Sciencesx Geology0 (SwePub)105042 hsv//eng
653		a continentality
653		a no analogues
653		a northern Europe
653		a summer temperature
653		a transfer function
700	1	a Helmens, Karin F.u Stockholms universitet,Institutionen för naturgeografi och kvartärgeologi (INK)4 aut0 (Swepub:su)khelm
700	1	a Seppa, Heikki4 aut
700	1	a Birks, H. John B.4 aut
710	2	a Stockholms universitetb Institutionen för naturgeografi och kvartärgeologi (INK)4 org
773	0	t Journal of Quaternary Scienced : Wileyg 28:3, s. 271-282q 28:3<271-282x 0267-8179x 1099-1417
856	4 8	u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-90381
856	4 8	u https://doi.org/10.1002/jqs.2611

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Av författaren/redakt...: Salonen, J. Saka ...; Helmens, Karin F ...; Seppa, Heikki; Birks, H. John B ...

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