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GEOG5426 Taking the Earth’s temperature
Workload
Along with the links, I will also send out a set of
questions to focus your reading of the articles. As
part of your pre-work, you will be asked to submit a
short response to these questions (no more than a
page of double-spaced text) at the beginning of class.
Workload
Along with the links, I will also send out a set of
questions to focus your reading of the articles. As

                              X
part of your pre-work, you will be asked to submit a
short response to these questions (no more than a
page of double-spaced text) at the beginning of class.
Workload
At the end of class, one student will be assigned to
write a short summary of the articles and conclusions
drawn during our discussion.  I’ll review the summary
and post it to the class blog so that everyone can
benefit from the effort.
James Hansen Goddard Insitute of Space Studies
Water Survey of Canada Weather Station Near Caroline, Alberta
Buckets used in ocean temperature measurements Kent et al. 2010
Global Tropical Moored Buoy Array h p://www.pmel.noaa.gov/tao/
Global Tropical Moored Buoy Array h p://www.pmel.noaa.gov/tao/
Global Historical Climate Network h   p://www.ncdc.noaa.gov/oa/climate/ghcn-monthly/index.php
NASA global temperature record h p://www.giss.nasa.gov/
2010 Jan-Aug temperature anomaly h p://www.giss.nasa.gov/
2010 Jan-Aug temperature anomaly h p://www.giss.nasa.gov/
Temperature-sensitive trees Northeastern Alaska
Location of long temperature proxies Osborne and Briffa, 2006
(1) W USA (regional)                 PC of tree-ring chronologies
 (2) SW Canada (Icefields)             RCS tree-ring chronology
 (3) W USA (Boreal/Upperwright)       2 RCS tree-ring chronologies
 (4) NE Canada (Quebec)               RCS tree-ring chronology
 (5) E USA (Chesapeake Bay)           Mg/Ca in fossil shells
 (6) W Greenland (regional)           Composite of δ18O ice-core records
 (7) Netherlands/Belgium (regional)   Documentary record
 (8) Austria (Tirol)                  RCS tree-ring chronology
 (9) N Sweden (Tornetrask)            RCS tree-ring chronology
 (10) NW Russia (Yamal)               RCS tree-ring chronology
 (11) NW Russia (Mangazeja)           RCS tree-ring chronology
 (12) N Russia (Taimyr)               RCS tree-ring chronology
 (13) Mongolia (regional)             Composite of tree-ring chronologies
 (14) E Asia (regional)               Composite of multiple proxy types


Location of long temperature proxies Osborne and Briffa, 2006
Temperature-sensitive trees Alaska
Highly-variable NH temperatures? Moberg et al., 2005
“ Indeed, the challenge for palaeoclimate researchers —
  and their funding agencies — is to produce multi-proxy
  reconstructions at the appropriate regional scale so that
  all of the voices can be heard.”
  David Anderson and Connie Woodhouse
“High-resolution” proxies Moberg et al., 2005
“Low-resolution” proxies Moberg et al., 2005
Low (blue) and high (red) resolution proxies Moberg et al., 2005
Climate sensitivity
In IPCC reports, climate sensitivity refers to the change in
the mean global temperature following a doubling of the
concentration of CO2 in the atmosphere.
Workload
A paper, not to exceed 10 pages of text plus figures
and references, which reviews the climate history of a
single region over a specific time period during the
Holocene (e.g., the mid-Holocene, the last 2ka or the
last 500 yr).
Workload
A paper, not to exceed 10 pages of text plus figures
and references, which reviews the climate history of a
single region over a specific time period during the
Holocene (e.g., the mid-Holocene, the last 2ka or the
last 500 yr).
No class October 6!
(I’m going to Boulder)

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Class 4, Global temperature

  • 1. GEOG5426 Taking the Earth’s temperature
  • 2. Workload Along with the links, I will also send out a set of questions to focus your reading of the articles. As part of your pre-work, you will be asked to submit a short response to these questions (no more than a page of double-spaced text) at the beginning of class.
  • 3. Workload Along with the links, I will also send out a set of questions to focus your reading of the articles. As X part of your pre-work, you will be asked to submit a short response to these questions (no more than a page of double-spaced text) at the beginning of class.
  • 4. Workload At the end of class, one student will be assigned to write a short summary of the articles and conclusions drawn during our discussion.  I’ll review the summary and post it to the class blog so that everyone can benefit from the effort.
  • 5. James Hansen Goddard Insitute of Space Studies
  • 6. Water Survey of Canada Weather Station Near Caroline, Alberta
  • 7. Buckets used in ocean temperature measurements Kent et al. 2010
  • 8. Global Tropical Moored Buoy Array h p://www.pmel.noaa.gov/tao/
  • 9. Global Tropical Moored Buoy Array h p://www.pmel.noaa.gov/tao/
  • 10. Global Historical Climate Network h p://www.ncdc.noaa.gov/oa/climate/ghcn-monthly/index.php
  • 11. NASA global temperature record h p://www.giss.nasa.gov/
  • 12. 2010 Jan-Aug temperature anomaly h p://www.giss.nasa.gov/
  • 13. 2010 Jan-Aug temperature anomaly h p://www.giss.nasa.gov/
  • 15. Location of long temperature proxies Osborne and Briffa, 2006
  • 16. (1) W USA (regional) PC of tree-ring chronologies (2) SW Canada (Icefields) RCS tree-ring chronology (3) W USA (Boreal/Upperwright) 2 RCS tree-ring chronologies (4) NE Canada (Quebec) RCS tree-ring chronology (5) E USA (Chesapeake Bay) Mg/Ca in fossil shells (6) W Greenland (regional) Composite of δ18O ice-core records (7) Netherlands/Belgium (regional) Documentary record (8) Austria (Tirol) RCS tree-ring chronology (9) N Sweden (Tornetrask) RCS tree-ring chronology (10) NW Russia (Yamal) RCS tree-ring chronology (11) NW Russia (Mangazeja) RCS tree-ring chronology (12) N Russia (Taimyr) RCS tree-ring chronology (13) Mongolia (regional) Composite of tree-ring chronologies (14) E Asia (regional) Composite of multiple proxy types Location of long temperature proxies Osborne and Briffa, 2006
  • 19. “ Indeed, the challenge for palaeoclimate researchers — and their funding agencies — is to produce multi-proxy reconstructions at the appropriate regional scale so that all of the voices can be heard.” David Anderson and Connie Woodhouse
  • 22. Low (blue) and high (red) resolution proxies Moberg et al., 2005
  • 23. Climate sensitivity In IPCC reports, climate sensitivity refers to the change in the mean global temperature following a doubling of the concentration of CO2 in the atmosphere.
  • 24. Workload A paper, not to exceed 10 pages of text plus figures and references, which reviews the climate history of a single region over a specific time period during the Holocene (e.g., the mid-Holocene, the last 2ka or the last 500 yr).
  • 25. Workload A paper, not to exceed 10 pages of text plus figures and references, which reviews the climate history of a single region over a specific time period during the Holocene (e.g., the mid-Holocene, the last 2ka or the last 500 yr).
  • 26. No class October 6! (I’m going to Boulder)