Tree Rings and Temperatures

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68-69°N, 18-28°E 65°N, 69°E 65°N, 69°E Grey area = sample replication New RCS ringwidth chronologies from high latitude sites in Eurasia that show no “divergence” effects ( Briffa et al 2008) Suggest “divergence” is not universal The causes may be very variable Many ongoing studies investigating this problem
Although temperatures centre of significant attention, the real problems in a warmer world will be water related Moisture sensitive series Provide good proxy precipitation records Often stronger than temperatures up to 60-70% explained variance Strongly related to climate variability and assist our understanding of past and future changes Some examples Douglas fir Cranbrook, B.C.
Page 1 and 2: Tree rings and temperatures Brian L
Page 3 and 4: Tree Rings Deliver • A precisely
Page 5 and 6: All series rigourously checked to e
Page 7 and 8: there is no change in the limiting
Page 9 and 10: Tree-ring Densitometry Precisely sa
Page 11 and 12: Negative exponential Linear negativ
Page 13 and 14: The Principle of Aggregate Tree Gro
Page 15 and 16: Long tree-ring chronologies and old
Page 17 and 18: Athabasca Glacier Maximum May-Augus
Page 19 and 20: Comparison with other Northern Hemi
Page 21 and 22: Northern Hemisphere densitometric c
Page 23 and 24: Annual maps show strong but regiona
Page 25 and 26: Interhemispheric Linkages ( tempera
Page 28 and 29: Comparison of three millennial leng
Page 30 and 31: Challenges basic assumptions of den
Page 34 and 35: Major droughts on the Canadian Prai
Page 36 and 37: Combining precipitation and tempera
Page 38 and 39: Take home messages trees are not th

Tree Rings and Temperatures

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