Access

You are not currently logged in.

Access JSTOR through your library or other institution:

login

Log in through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Reconstructing Summer Temperatures in Northern Fennoscandinavia Back to A.D. 1700 Using Tree-Ring Data from Scots Pine

K. R. Briffa, P. D. Jones, J. R. Pilcher and M. K. Hughes
Arctic and Alpine Research
Vol. 20, No. 4 (Nov., 1988), pp. 385-394
DOI: 10.2307/1551336
Stable URL: http://www.jstor.org/stable/1551336
Page Count: 10
  • Read Online (Free)
  • Subscribe ($19.50)
  • Add to My Lists
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Reconstructing Summer Temperatures in Northern Fennoscandinavia Back to A.D. 1700 Using Tree-Ring Data from Scots Pine
Preview not available

Abstract

Estimates of mean July-August temperatures for northern Fennoscandinavia are made back to 1700 using ring width and maximum latewood density chronologies of Pinus sylvestris L. (Scots pine) as predictors. Several prediction models are used and the best results are achieved with a simple two-variable model where climate in year t is estimated as a function of tree growth in years t and t + 1 at each site. The best reconstruction equation accounts for 56% of the temperature variance over a 74-yr fitting period and 45% of the variance over a 39-yr independent verification period. Relatively short-period variability (periods < 10 yr) is better reproduced in the reconstruction than is that at longer wavelengths. The reconstruction indicates that generally cool conditions prevailed across northern Fennoscandinavia around 1716-1724, 1777-1784, 1809-1818, and 1833-1842. Warm periods are reconstructed around 1766-1775 and 1788-1799 and particularly from 1826 to 1831.

Page Thumbnails

  • Thumbnail: Page 
385
    385
  • Thumbnail: Page 
386
    386
  • Thumbnail: Page 
387
    387
  • Thumbnail: Page 
388
    388
  • Thumbnail: Page 
389
    389
  • Thumbnail: Page 
390
    390
  • Thumbnail: Page 
391
    391
  • Thumbnail: Page 
392
    392
  • Thumbnail: Page 
393
    393
  • Thumbnail: Page 
394
    394