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Holocene annual mean temperature changes in Estonia and their relationship to solar insolation and atmospheric circulation patterns

Published online by Cambridge University Press:  20 January 2017

Heikki Seppä*
Affiliation:
Department of Earth Sciences, Uppsala University, Villavägen 16, SE-752 36 Uppsala, Sweden
Anneli Poska
Affiliation:
Institute of Geology, Tallinn Technical University, Estonia pst. 7, 10143 Tallinn, Estonia
*
*Corresponding author. Current address: Department of Geology, P.O. Box 64, FIN-00014, University of Helsinki, Finland.E-mail address:[email protected](H. Seppa).

Abstract

We reconstructed annual mean temperature (Tann) trends from three radiocarbon-dated Holocene pollen stratigraphies from lake sediments in Estonia, northern Europe. The reconstructions were carried out using a North-European pollen-climate calibration model based on weighted averaging partial least-squares regression. The cross-validated prediction error of the model is 0.89°C and the coefficient of determination between observed modern Tann values and those predicted by the model is 0.88. In the reconstruction, the Holocene thermal maximum (HTM) is distinguishable at 8000–4500 cal yr B.P. with the expansion of thermophilous tree species and Tann on average 2.5°C higher than at present. The pollen-stratigraphical data reflect progressively warmer and drier summers during the HTM. Analogously with the modern decadal-scale climatic variability in North Europe, we interpret this as an indication of increasing climatic continentality due to the intensification of anticyclonic circulation and meridional air flow. Post-HTM cooling started abruptly at around 4500 cal yr B.P. All three reconstructions show a transient (ca. 300 years) cooling of 1.5–2.0°C at 8600–8000 cal yr B.P. We tentatively correlate this cold event with the North-Atlantic “8.2 ka event” at 8400–8000 cal yr B.P. Provided that the 8.2 ka event was caused by freshening of the North-Atlantic surface water, our data provide evidence of the climatic and vegetational responsiveness of the boundary of the temperate and boreal zones to the weakening of the North-Atlantic thermohaline circulation and the zonal energy transport over Europe. No other cold events of comparable magnitude are indicated during the last 8000 years.

Type
Research Article
Copyright
University of Washington

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References

Ahti, T., Hämet-Ahti, L., Jalas, J., (1968). Vegetation zones and their sections in northwestern Europe. Annales Botanici Fennici. 5, 169211.Google Scholar
Alley, R.B., Mayewski, P.A., Sowers, T., Stuiver, M., Taylor, K.C., Clark, P.U., (1997). Holocene climatic instability: a prominent, widespread event 8200 yr ago. Geology. 25, 483486.Google Scholar
Barber, D.C., Dyke, A., Hillaire-Marcel, C., Jennings, A.E., Andrews, J.T., Kerwin, M.W., Bilodeau, G., McNeely, R., Southon, J., Morehead, M.D., Gagnon, J.-M., (1999). Forcing of the cold event of 8,200 years ago by catastrophic drainage of Laurentide lakes. Nature. 400, 344348.CrossRefGoogle Scholar
Berger, A., (1978). Long-term variations of caloric insolation resulting from the Earth's orbital elements. Quaternary Research. 9, 139167.CrossRefGoogle Scholar
Birks, H.J.B., (1995). Quantitative palaeoenvironmental reconstructions. Maddy, D., Brew, J.S., Statistical Modeling of Quaternary Science Data. Technical Guide. vol. 5, Quaternary Research Association, Cambridge., 161254.Google Scholar
Birks, H.J.B., (1998). Numerical tools in quantitative palaeolimnology—progress, potentialities, and problems. Journal of Paleolimnology. 20, 301332.Google Scholar
Chen, D., Hellström, C., (1999). The influence of the North Atlantic Oscillation on the regional temperature variability in Sweden: spatial and temporal variations. Tellus A. 51, 505516.Google Scholar
Clark, P.U., Marshall, S.J., Clarke, G.K.C., Hostetler, S.W., Licciardi, J.M., Teller, J.T., (2001). Freshwater forcing of abrupt climate change during the last glaciation. Science. 293, 283287.CrossRefGoogle ScholarPubMed
Claussen, M., Mysak, L.A., Weaver, A.J., (2002). Earth system models of intermediate complexity: closing the gap in the spectrum of climate system models. Climate Dynamics. 18, 579586.Google Scholar
Crucifix, M., Loutre, M.-F., Tulkens, P., Fichefet, T., Berger, A., (2002). Climate evolution during the Holocene: a study with an Earth system model of intermediate complexity. Climate Dynamics. 19, 4360.Google Scholar
Dahl, E., (1998). The Phytogeography of Northern Europe. Cambridge Univ. Press, Cambridge, UK.Google Scholar
Dahl-Jensen, D., Monsegaard, K., Gundestrup, N., Clow, G.D., Johnsen, S.J., Hansen, A.W., Balling, N., (1998). Past temperatures directly from the greenland ice sheet. Science. 282, 268271.Google Scholar
Dean, W., Forester, R.M., Platt Bradbury, J., (2002). Early Holocene change in atmospheric circulation in the Northern Great Plains: an upstream view of the 8.2 ka cold event. Quaternary Science Reviews. 21, 17631775.CrossRefGoogle Scholar
de Noblet, N., Braconnot, P., Joussaume, S., Masson, V., (1996). Sensitivity of simulated Asian and African summer monsoon to orbitally induced variations in insolation 126, 115 and 6 kBP. Climate Dynamics. 12, 589603.CrossRefGoogle Scholar
Ganopolski, A., Kubatzki, C., Claussen, M., Brovkin, V., Petoukhov, V., (1998). The Influence of vegetation–atmosphere–ocean interaction on climate during the mid-Holocene. Science. 280, 19161919.Google Scholar
Grassl, H., (2000). Status and improvements of coupled general circulation models. Science. 288, 19911997.Google Scholar
Grimm, E.C., (1990). TILIA and TILIA.GRAPH. PC spreadsheet and graphics software for pollen data. INQUA, Working Group on Data-Handling Methods, Newsletter. 4, 57.Google Scholar
Hall, N.M., Valdes, P., (1997). An AGCM simulation of the climate 6000 years ago. Journal of Climate. 10, 317.2.0.CO;2>CrossRefGoogle Scholar
Hammarlund, D., Barnekow, L., Birks, H.J.B., Buchardt, B., Edwards, T.W.D., (2002). Holocene changes in atmospheric circulation recorded in the oxygen-isotope stratigraphy of lacustrine carbonates from northern Sweden. The Holocene. 12, 339351.Google Scholar
Hammarlund, D., Björck, S., Buchardt, B., Israelson, C., Thomsen, C.T., (2003). Rapid hydrological changes during the Holocene revealed by stable isotope records of lacustrine carbonates from Lake Igelsjön, southern Sweden. Quaternary Science Reviews. 22, 353370.Google Scholar
Harrison, S.P., Digerfeldt, G., (1993). European lakes as palaeohydrological and palaeoclimatic indicators. Quaternary Science Reviews. 12, 233248.Google Scholar
Harrison, S.P., Yu, G., Tarasov, P.E., (1996). Late quaternary lake-level record from northern Eurasia. Quaternary Research. 45, 138159.Google Scholar
Heikkilä, M., Seppä, H., (2003). A 11,000 yr palaeotemperature reconstruction from the southern boreal zone in Finland. Quaternary Science Reviews. 22, 541554.Google Scholar
Hintikka, V., (1963). Über das Grossklima einiger pflanzenareale in zwei klimakoordinatensystemen dargestellt. Annales Botanici Societatis Zoologicæ Botanicæ Fennicæ ‘Vanamo’. 34, 163.Google Scholar
Hurrell, J., van Loon, H., (1997). Decadal variations in climate associated with the North Atlantic Oscillation. Climatic Change. 36, 301326.CrossRefGoogle Scholar
Jacobeit, J., Jönsson, P., Bärring, L., Beck, C., Ekström, M., (2001). Zonal indices for Europe 1780–1995 and running correlations with temperature. Climatic Change. 48, 219241.CrossRefGoogle Scholar
Johannessen, R.W., (1970). The climate of Scandinavia. Wallén, C.C., Climates of Northern and Western Europe. World Survey of Climatology. vol. 5, Elsevier, Amsterdam., 2380.Google Scholar
Johnsen, S., Dahl-Jensen, D., Gundestrup, N., Steffessen, J.P., Clausen, H.B., Masson-Delmotte, V., Sveinbjörnsdottir, A.E., White, J., (2001). Oxygen isotope and palaeotemperature records from six Greenland ice-core stations: Camp Century, Dye-3, GRIP, GISP2, Renland and NorthGRIP. Journal of Quaternary Science. 16, 299307.Google Scholar
Karofeld, E., (1998). The dynamics of the formation and development of hollows in raised bogs in Estonia. The Holocene. 8, 697704.CrossRefGoogle Scholar
Keigwin, L.D., Boyle, E.A., (2000). Detecting Holocene changes in thermohaline circulation. Proceedings of the National Academy of Sciences. 4, 13431346.CrossRefGoogle Scholar
Klitgaard-Kristensen, D., Sejrup, H.P., Haflidason, H., Johnsen, S., Spurk, M., (1998). A regional 8200 cal. yr BP cooling event in northwest Europe, induced by final stages of the Laurentide ice-sheet deglaciation. Journal of Quaternary Science. 13, 165169.Google Scholar
Manabe, S., Stouffer, R.J., (1995). Simulation of abrupt climate change induced by freshwater input to the North Atlantic Ocean. Nature. 378, 165167.Google Scholar
Marshall, J., Kushnir, Y., Battisti, D., Chang, P., Czaja, A., Dickson, R., Hurrell, J., McCartney, M., Saravanan, R., Visbeck, M., (2001). North Atlantic climate variabilty: phenomena, impacts and mechanisms. International Journal of Climatology. 21, 18631898.Google Scholar
Meeker, L.D., Mayewski, P.A., (2002). A 1400-year high-resolution record of atmospheric circulation over the North Atlantic and Asia. The Holocene. 12, 257266.Google Scholar
Moen, A., (1999). National Atlas of Norway: vegetation. Norwegian Mapping Authority, Hønefoss.Google Scholar
Nesje, A., Dahl, S.O., (2001). The Greenland 8200 cal. yr BP event detected in loss-on-ignition profiles in Norwegian lacustrine sediment sequences. Journal of Quaternary Science. 16, 155166.Google Scholar
Petterssen, S., (1949). Changes in the general circulation associated with the recent climatic variation. Geografiska Annaler. 31, 212221.Google Scholar
Pigott, C.D., (1981). Nature of seed sterility and natural regeneration of Tilia cordata near its northern limit in Finland. Annales Botanici Fennici. 18, 255263.Google Scholar
Pigott, C.D., Huntley, J.P., (1981). Factors controlling the distribution of Tilia cordata at the northern limits of its geographical range. III. Nature and causes of seed sterility. New Phytologist. 87, 817839.CrossRefGoogle Scholar
Poska, A., Saarse, L., (2002). Biostratigraphy and 14C dating of a lake sediment sequence on the north-west Estonian carbonaceous plateau, interpreted in terms of human impact in the surroundings. Vegetation History and Archaeobotany. 11, 191202.Google Scholar
Prentice, I.C., Helmisaari, H., (1991). Silvics of north European trees: compilation, comparisons and implications for forest succession modelling. Forest Ecology and Management. 42, 7993.Google Scholar
Rahmstorf, S., (2000). The thermohaline ocean circulation: a system with dangerous thresholds?. Climatic Change. 46, 247256.Google Scholar
Renssen, H., Goosse, H., Fichefet, T., Campin, J.-M., (2001). The 8.2 kyr event simulated by a global atmosphere–sea-ice–ocean model. Geophysical Research Letters. 28, 15671570.Google Scholar
Rohling, E.J., Mayewski, P.A., Abu-Zied, R.H., Casford, J.S., Hayes, A., (2002). Holocene atmosphere–ocean interactions: records from Greenland and the Aegean Sea. Climate Dynamics. 18, 587593.Google Scholar
Saarse, L., Heinsalu, A., Veski, S., (1995). Palaeoclimatic interpretation of the Holocene litho- and biostratigraphic proxy data from Estonia. Proceedings of the SILMU Conference Held in Helsinki, Finland, 2–25 August 1995. 102105., Publications of the Academy of Finland 6/95.Google Scholar
Saarse, L., Poska, A., Kaup, E., Heinsalu, A., (1998). Holocene environmental events in the Viitna area, north Estonia. Proceedings of the Estonian Academy of Sciences, Geology. 47, 3144.Google Scholar
Seppä, H., Birks, H.J.B., (2001). July mean temperature and annual precipitation trends during the Holocene in the Fennoscandian tree-line area: pollen-based climate reconstructions. The Holocene. 11, 527539.CrossRefGoogle Scholar
Seppä, H., Birks, H.J.B., (2002). Holocene climate reconstructions from the Fennoscandian tree-line area based on pollen data from Toskaljavri. Quaternary Research. 57, 191199.Google Scholar
Seppä, H., Birks, H.J.B., Odland, A., Poska, A., Veski, S., (2003). Modern pollen-climate calibration set from northern Europe: developing and testing a tool for palaeoclimatological reconstructions. Journal of Biogeography(in press).Google Scholar
Shemesh, A., Rosqvist, G., Rietti-Shati, M., Rubensdottir, L., Bigler, C., Yam, R., Karlén, W., (2001). Holocene climatic change in Swedish Lapland inferred from an oxygen-isotope record of lacustrine biogenic silica. The Holocene. 11, 447454.Google Scholar
Skre, O., (1979). The regional distribution of vascular plants in Scandinavia with requirements for high summer temperatures. Norwegian Journal of Botany. 26, 295318.Google Scholar
Slonosky, V., Yiou, P., (2002). Does the NAO index represent zonal flow? The influence of the NAO on North Atlantic surface temperature. Climate Dynamics. 19, 1730.Google Scholar
Slonosky, V., Jones, P.D., Davies, T.D., (2000). Variability of the surface atmospheric circulation over Europe, 1774–1995. International Journal of Climatology. 20, 18751897.Google Scholar
Stuiver, M., Reimer, P.J., (1993). Extended 14C data base and revised CALIB 3.2 14C age calibration program. Radiocarbon. 35, 215230.CrossRefGoogle Scholar
Stuiver, M., Reimer, P.J., Bard, E., Beck, J.W., Burr, G.S., Hughen, K.A., Kromer, B., McCormac, G., van der Plicht, J., Spurk, M., (1998). 1998 INTCAL98 radiocarbon age calibration, 24,000–0 cal BP. Radiocarbon. 40, 10411083.CrossRefGoogle Scholar
Tarand, A., Nordli, P.Ø., (2000). The Tallinn temperature series reconstructed back half a millennium by use of proxy data. Climatic Change. 48, 189199.Google Scholar
ter Braak, C.J.F., (1995). Non-linear methods for multivariate statistical calibration and their use in palaeoecology: a comparison of inverse (k-nearest neighbors), partial least squares and weighted averaging partial least squares and classical approaches. Chemometrics and Intelligent Laboratory Systems. 28, 165180.Google Scholar
ter Braak, C.J.F., Juggins, S., (1993). Weighted averaging partial least squares regression (WA-PLS): An improved method for reconstructing environmental variables from species assemblages. Hydrobiologia. 269/270, 485502.Google Scholar
Tinner, W., Lotter, A.F., (2001). Central European vegetation response to abrupt climate change at 8.2 ka. Geology. 29, 25512554.Google Scholar
Vellinga, M., Wood, R.A., (2002). Global climatic impacts of a collapse of the Atlantic thermohaline circulation. Climatic Change. 54, 251267.Google Scholar
Viiding, H., (1995). Geological structure. Raukas, A., Eesti Loodus. Valgus, Tallinn., 4061.Google Scholar
Walter, H., Breckle, S.-W., (1986). Temperate and Polar zonobiomes of Northern Eurasia. Ecological systems of the Geobiosphere. vol. 3, Springer-Verlag, Berlin.Google Scholar
Werner, P.C., Gerstengarbe, F.-W., Fraedrich, K., Oesterle, H., (2000). Recent climate change in the North Atlantic/European sector. International Journal of Climatology. 20, 463471.Google Scholar
Woodward, F.I., (1987). Climate and Plant Distribution. Cambridge Univ. Press, Cambridge, UK.Google Scholar
Yu, G., Harrison, S.P., (1995). Holocene changes in atmospheric circulation patterns as shown by lake status in northern Europe. Boreas. 24, 260268.Google Scholar