Abstract
Maximum latewood density and δ 13C discrimination of Interior Alaska white spruce were used to reconstruct summer (May through August) temperature at Fairbanks for the period 1800–1996, one of the first high-resolution reconstructions for this region. This combination of latewood density and δ 13C discrimination explains 59.9% of the variance in summer temperature during the period of record 1906–1996. The 200-yr. reconstruction is characterized by 7 decadal-scale regimes. Regime changes are indicated at 1816, 1834, 1879, 1916, 1937, and 1974, are abrupt, and appear to be the result of synoptic scale climate changes. The mean of summer temperature for the period of reconstruction (1800–1996) was 13.49 °C. During the period of instrument record (1903–1996) the mean of summer temperature was 13.31 °C for both the reconstruction and the recorded data. The coldest interval was 1916–1937 (12.62 ° C) and the warmest was 1974–1996 (14.23 °C) for the recorded data. The reconstruction differs from records of northern hemisphere temperatures over this period, especially because of Interior Alaska warm periods reconstructed from 1834 to 1851 (14.24 °C) and from 1862 to 1879 (14.19 °C) and because of the cool period in the early part of the 20th century (1917–1974). We show additional tree ring data that support our reconstruction of these warm periods. Alternate hypotheses involving autogenic effect of tree growth on the site, altered tree sensitivity, or novel combinations of temperature and precipitation were explored and while they cannot be ruled out as contributors to the anomalously warm 19th century reconstruction, they were not supported by available data. White spruce radial growth is highly correlated with reconstructed summer temperature, and temperature appears to be a reliable index of carbon uptake in this system.
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Anderson, P. M., Bartlein, P. J., Brubaker, L. B., Gajewski, K., and Ritchie, J. C.: 1991, 'Vegetation-Pollen-Climate Relationships for the Arcto-Boreal Region of North America and Greenland', J. Biogeogr. 18, 565–582.
Barber, V. A., Juday, G. P., and Finney, B. P.: 2000, 'Reduced Growth of Alaskan White Spruce in the Twentieth Century from Temperature-Induced Drought Stress', Nature 405, 668–673.
Barry, R. G. and Hare, F. K.: 1974, 'Arctic Climate', in Ives J. D. and Barry, R. G. (eds.), Arctic and Alpine Environments, 999 pp.
Bert, D., Leavitt, S. W., and Dupouey, J.-L.: 1997, 'Variations of Wood ? 13C and Water-Use Efficiency of Abies Alba during the Last Century', Ecology 78, 1588–1596.
Bradley, R. S. and Jones, P. D.: 1993, 'Little Ice Age' Summer Temperature Variations: Their Nature and Relevance to Recent Global Warming Trends', Holocene 3, 367–376.
Briffa, K. R., Schweingruber, F. H., Jones, P. D., Osborn, T. J., Shiyatov, S. G., and Vagnov, E. A.: 1998, 'Reduced Sensitivity of Recent Tree-Growth to Temperature at High Northern Latitudes', Nature 391, 678–682.
Brooks, J. R., Flanagan, L. B., and Ehleringer, J. R.: 1998, 'Responses of Boreal Conifers to Climate Fluctuations: Indications from Tree-Ring Widths and Carbon Isotope Analyses', Can. J. Forest Res. 28, 524–533.
Chapman, W. L. and Walsh, J. E.: 1993, 'Recent Variations of Sea Ice and Air Temperature in High Latitudes', Bull. Amer. Meteorol. Soc. 74, 33–47.
Cook, E. R. and Kairiukstis, L. A.: 1990, Methods of Dendrochronlogy: Applications in the Environmental Sciences, Kluwer Academic Publishers, 394 pp.
D'Arrigo, R. D. and Jacoby, G. C.: 1993, 'Tree Growth Climate Relationships at the Northern Boreal Forest Tree Line of North America: Evaluation of Potential Response to Increasing Carbon Dioxide', Global Biogeochem. Cycles 7, 525–535.
Edwards, M. E., Mock, C. L., Finney, B. P., Barber, V. A., and Bartlein, P. J.: 2001, 'Potential Analogues for Paleoclimatic Variations in Astern Interior Alaska during the Past 14,000 Yr: Atmospheric-Circulation Controls of Regional Temperature and Moisture Responses', Quatern. Sci. Rev. 20, 189–202.
Francey, R. J., Allison, C. E., Etheridge, D. M., Trudinger, C. M., Enting, I. G., Leuenberger, M., Langenfelds, R. L., Michel, E., and Steele, L. P.: 1999, 'A 1000-Year High Precision Record of ?13C in Atmospheric CO2', Tellus 51B, 170–193.
Francey, R. J. and Farquhar, G. D.: 1982, 'An Explanation of 13C/12C Variations in Tree Rings', Nature 297, 28–31.
Fritts, H. C.: 1976, Tree-Rings and Climate, Academic Press, 567 pp.
Garfinkle, H. L. and Brubaker, L. B.: 1980, 'Modern Climate-Tree-Growth Relationships and Climatic Reconstruction in Sub-Arctic Alaska', Nature, 286, 872–874.
Hogg, E. H.: 1994, 'Climate and the Southern Limit of the Western Canadian Boreal Forest', Can. J. Forest Res. 24, 1835–1845.
Hogg, E. H.: 1997, 'Temporal Scaling of Moisture and the Forest-Grassland Boundary in Western Canada', Agric. For. Meteorol. 84, 115–122.
Holmes, R. L.: 2000, Cofecha. Laboratory of Tree-Ring Research.
Houghton, J. J., Meiro Filho, L. G., Callander, B. A., Harris, N., Kattenberg, A., and Maskell, K. (eds.): 1996, The Science of Climate Change. Contribution of Working Group I to the Second Assessment Report of the Intergovernmental Panel on Climate Change (IPCC), Vol. 1, Climate Change 1995, Cambridge University Press, 584 pp.
Hughes, M. K. and Diaz, H. F.: 1994, 'Was There a “Medieval Warm Period”, and if so, Where and When?', Clim. Change 26, 109–142.
Jacoby, G., Lovelius, N., Shumilov, O., Raspopov, O., Kabainov, J., and Frank, D.: 2000, 'Long-Tern Temperature Trends and Tree Growth in the Taymir Region of Northern Siberia', Quatern. Res. 53, 312–318.
Jacoby, G. C. and D'Arrigo, R.: 1989, 'Reconstructed Northern Hemisphere Annual Temperature since 1671 Based on High-Latitude Tree-Ring Data from North America', Clim. Change 14, 39–59.
Jacoby, G. C. and D'Arrigo, R. D.: 1995, 'Tree Ring Width and Density Evidence of Climatic and Potential Forest Change in Alaska', Global Biogeochem. Cycles 9 227–234.
Jacoby, G. C., D'Arrigo, R. D., and Davaajamts, T.: 1996, 'Mongolian Tree Rings and 20th-Century Warming', Science 273, 771–773.
Johnson, C. A., Pastor, J., and Pinay, G.: 1992, 'Quantitative Methods for Studying Landscape Boundaries', in Hansen, A. J. and di Castri, F. (eds.), Landscape Boundaries: Consequences for Biotic Diversity and Ecological Flows, Springer-Verlag, 452 pp.
Juday, G. P.: 1984, 'Temperature Trends in the Alaska Climate Record', in Proceedings of the Conference on the Potential Effects of Carbon Dioxide-Induced Climatic Changes in Alaska, Fairbanks, AK, Ag. Exp. Sta. Misc. Publication, Univ. of Alaska, pp. 76–88.
Kasischke, E. S. and Stocks, B. J.: 2000, Fire, Climate Change, and Carbon Cycling in the Boreal Forest, Springer-Verlag, 461 pp.
Koskey, M. S. and Yamin, S., 2001:'Climate Variability in the Bering Strait Region: Written Sources and the Detection of Arctic Climate Change', Global Glimpses, 5–6.
Kurz, W. A., Apps, M. J., Stocks, B. J., and Volney, W. J. A.: 1995, 'Global Climate Change; Disturbance Regimes and Biospheric Feedbacks of Temperature and Boreal Rorests', in Boreal Forests and Global Change, Kluwer Academic Publishers, 548 pp.
Labau, V. J. and Van Hees, W. W. S.: 1990, 'An Inventory of Alaska's Boreal Forests: Their Extent, Condition, and Potential Use', in Proceedings International Symposium Boreal Forests: Climate, Dynamics, Anthropogenic Effects, Archangelsk, Russia, State Committee of U.S.S.R. on Forests.
Leavitt, S. W. and Danzer, S. R.: 1992, 'Method for Batch Processing Small Wood Samples to Holocellulose for Stable-Carbon Isotope Analysis', Analytical Chemistry 65, 87–89.
Lloyd, A. H. and Fastie, C. L.: 2002, 'Spatial and Temporal Variability in the Growth and Climate Response of Treeline Trees in Alaska', Clim. Change 52, 481–509.
Mann, M. E., Bradley, R. S., and Hughes, M. K.: 1998, 'Global-Scale Temperature Patterns and Climate Forcing over the Past Six Centuries', Nature 392, 698–702.
Mock, C. J., Bartlein, P. J., and Anderson, P. M.: 1998, 'Atmospheric Circulation Patterns and Spatial Climatic Variations in Beringia', Int. J. Clim. 18, 1085–1104.
Nienstaedt and Zasada, J.: 1990, 'Picea Glauca (Moench) Voss White Spruce', in Burns, R. M. and Honkala, B. H. (eds.), Silvics of North America: 1. Conifers; 2. Hardwoods, U.S. Department of Agriculture, Forest Service, 877 pp.
Osterkamp, T. E.: 1996, 'Impacts of Thawing Permafrost as a Result of Climatic Warming', EOS Trans. Am. Geophys. Union 77, F188.
Osterkamp, T. E. and Romanovsky, V. E.: 1999, 'Evidence for Warming and Thawing of Discontinuous Permafrost in Alaska', Permafrost and Periglacial Processes 10, 17–37.
Overpeck, J., Hughen, K., Hardy, D., Bradley, R., Case, R., Douglas, M., Finney, B., Gajewski, K., Jacoby, G., Jennings, A., Lamoureux, S., Lasca, A., MacDonald, G., Moore, J., Retelle, M., Smith, S., Wolfe, A., and Zielinski, G.: 1997, 'Arctic Environmental Change of the Last Four Centuries', Science 278, 1251–1256.
Patric, J. H. and Black, P. E.: 1968, 'Potential Evapotranspiration and Climate in Alaska by Thornthwaite's Classification', Research Paper PNW-71, U.S.D.A. Forest Service Juneau, AK.
Ruess, R. W., Van Cleve, K., Yarie, J., and Viereck, L. A.: 1996, 'Comparative Estimates of Fine Root Production in Successional Taiga Forests on the Alaskan Interior', Can. J. Forest Res. 26, 1326–1336.
Salmon, D. K.: 1992, On Interannual Variability and Climate Change in the North Pacific (Wind Stress Curl), Ph.D. Institute of Marine Science, University of Alaska Fairbanks, 229 pp.
Serreze, M. C., Walsh, J., Chapin, F. S., Osterkamp, T., Dyurgerov, M., Romanosky, V., Oechel, W., Morison, J., Zhang, T., and Barry, R.: 2000, 'Observational Evidence of Recent Change in the Northern High-Latitude Environment', Clim. Change 46, 159–207.
Thompson, R. S., Anderson, K. H., and Bartlein, P. J.: 2000, 'Atlas of Relation between Climatic Parameters and Distributions of Important Trees and Shrubs in North America-Introduction and Conifers', U.S. Geological Survey Professional Paper 1650-A, U.S. Geological Survey.
Wadhams, P.: 1995, 'Arctic Sea Ice Extent and Thickness', Phil. Trans. Roy. Soc. London A. 352, 301–318.
Werner, R. A.: 1996, 'Forest Health in Boreal Ecosystems of Alaska', The Forestry Chronicle 72, 43–46.
Wiles, G. C. and Calkin, P. E.: 1990, 'Neoglaciation in the Southern Kenai Mountains, Alaska', J. Glaciol. 14, 319–322.
Wiles, G. C., D'Arrigo, R. D., and Jacoby, G. C.: 1996, 'Temperature Changes along the Gulf of Alaska and the Pacific Northwest Coast Modeled from Coastal Tree Rings', Can. J. Forest Res. textbf26, 474–481.
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Barber, V.A., Juday, G.P., Finney, B.P. et al. Reconstruction of Summer Temperatures in Interior Alaska from Tree-Ring Proxies: Evidence for Changing Synoptic Climate Regimes. Climatic Change 63, 91–120 (2004). https://doi.org/10.1023/B:CLIM.0000018501.98266.55
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DOI: https://doi.org/10.1023/B:CLIM.0000018501.98266.55