GEOG3839.12, Temperature reconstructions

755 views

Published on

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
755
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
Downloads
12
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

GEOG3839.12, Temperature reconstructions

  1. 1. Monday, March 7, 2011
  2. 2. Monday, March 7, 2011
  3. 3. Monday, March 7, 2011
  4. 4. Monday, March 7, 2011
  5. 5. Monday, March 7, 2011
  6. 6. Monday, March 7, 2011
  7. 7. Ramzi Touchan University of Arizona Photograph: Ramzi TouchanMonday, March 7, 2011
  8. 8. Dendroclimatology in Algeria Photograph: Ramzi TouchanMonday, March 7, 2011
  9. 9. Source: Ramzi Touchan, University of ArizonaMonday, March 7, 2011
  10. 10. Monday, March 7, 2011
  11. 11. ENVIRONMENTAL QUESTIONSMonday, March 7, 2011
  12. 12. rising temperatures earthquakes floods insect ecology water quantity forest firesMonday, March 7, 2011
  13. 13. CLIMATE RECONSTRUCTIONMonday, March 7, 2011
  14. 14. rain gauges tree rings empirical comparisons between tree-ring and climate data Source: Hughes and Funkhouser, 1998Monday, March 7, 2011
  15. 15. Ring-width index correlation coefficients as a measure of climate signalMonday, March 7, 2011
  16. 16. Correlation functions illustrating assocations between tree growth and climateMonday, March 7, 2011
  17. 17. ‘Reconstructing climate’ based on statistical associationsMonday, March 7, 2011
  18. 18. R E C O N S T R U C T I N G T E M P E R AT U R EMonday, March 7, 2011
  19. 19. 2010 Jan-Aug temperature anomaly h p://www.giss.nasa.gov/Monday, March 7, 2011
  20. 20. Photograph: MariannaMonday, March 7, 2011
  21. 21. NASA global temperature record h p://www.giss.nasa.gov/Monday, March 7, 2011
  22. 22. Temperature-sensitive trees Northeastern AlaskaMonday, March 7, 2011
  23. 23. Monday, March 7, 2011
  24. 24. Brian Luckman University of Western OntarioMonday, March 7, 2011
  25. 25. St. George, S., and Luckman, B.H. 2001. Extracting a paleotemperature record from Picea engelmannii treeline sites in the central Canadian Rockies. Canadian Journal of Forest Research 31, 457-470.Monday, March 7, 2011
  26. 26. Monday, March 7, 2011
  27. 27. Source: St. George and Luckman, 2001Monday, March 7, 2011
  28. 28. THE PRINCIPLE OF ECOLOGICAL AMPLITUDE A tree species may grow and reproduce over a certain range of habitats; that range is described as its ecological amplitude. Trees that grow near the margins or limits of their ecological amplitude are o en sensitive to changes in their environment.Monday, March 7, 2011
  29. 29. Monday, March 7, 2011
  30. 30. empirical comparisonsMonday, March 7, 2011
  31. 31. Source: St. George and Luckman, 2001Monday, March 7, 2011
  32. 32. “HIGH” and “LOW” FREQUENCYMonday, March 7, 2011
  33. 33. Photograph: Gigi TagliapietraMonday, March 7, 2011
  34. 34. “HIGH” FREQUENCY Photograph: protographer23Monday, March 7, 2011
  35. 35. “LOW” FREQUENCY Photograph: Phil MooreMonday, March 7, 2011
  36. 36. Source: St. George and Luckman, 2001Monday, March 7, 2011
  37. 37. Source: St. George and Luckman, 2001Monday, March 7, 2011
  38. 38. Source: St. George and Luckman, 2001Monday, March 7, 2011
  39. 39. CORRELATION FUNCTIONMonday, March 7, 2011
  40. 40. Monday, March 7, 2011
  41. 41. Monday, March 7, 2011
  42. 42. Monday, March 7, 2011
  43. 43. Source: St. George and Luckman, 2001Monday, March 7, 2011
  44. 44. Source: St. George and Luckman, 2001Monday, March 7, 2011
  45. 45. Source: St. George and Luckman, 2001Monday, March 7, 2011
  46. 46. Source: St. George and Luckman, 2001Monday, March 7, 2011
  47. 47. most sites Source: St. George and Luckman, 2001Monday, March 7, 2011
  48. 48. most sites furthest north Source: St. George and Luckman, 2001Monday, March 7, 2011
  49. 49. most sites furthest north ‘oddball’ site Source: St. George and Luckman, 2001Monday, March 7, 2011
  50. 50. LINEAR REGRESSIONMonday, March 7, 2011
  51. 51. Source: St. George and Luckman, 2001Monday, March 7, 2011
  52. 52. Source: D’Arrigo et al., 2006Monday, March 7, 2011
  53. 53. Source: D’Arrigo et al., 2006Monday, March 7, 2011
  54. 54. Source: Osborne and Briffa, 2006Monday, March 7, 2011
  55. 55. Source: Osborne and Briffa, 2006Monday, March 7, 2011
  56. 56. LINEAR REGRESSIONMonday, March 7, 2011
  57. 57. Source: Intergovernmental Panel on Climate Change, 2007Monday, March 7, 2011
  58. 58. Photograph: Mark AnbinderMonday, March 7, 2011
  59. 59. SURFACE TEMPERATURE RECONSTRUCTIONS FOR T H E LAS T 2 , 00 0 Y E A R S NATIONAL RESEARCH COUNCIL OF THE NATIONAL ACADEMIESMonday, March 7, 2011
  60. 60. the ‘divergence problem’ is defined as the tendency for tree growth at some previously temperature-limited northern sites to demonstrate a weakening in mean temperature response in recent decades. Source: D’Arrigo et al., 2008Monday, March 7, 2011
  61. 61. Source: D’Arrigo et al., 2008Monday, March 7, 2011
  62. 62. “Trees are not thermometers or rain gagues.” Keith Briffa and colleaguesMonday, March 7, 2011
  63. 63. Source: D’Arrigo et al., 2008Monday, March 7, 2011
  64. 64. Monday, March 7, 2011

×