Thursday, April 12, 2012


date: Thu Oct 9 10:34:51 2008
from: Keith Briffa <>
to: Astrid.OgilvieatXYZxyzorado.EDU

Dear Dr Ogilvie,

I am writing on behalf of the Director , Professor Philip Jones to say that The Climatic
Research Unit would be very happy to collaborate on the project you propose: Understanding
Climate-Driven Phenological Change - Observations, Adaptations and Cultural Implications in
Northeastern Siberia and Labrador/Nunatsiavut (PHENARC).
This Unit, as you are well aware possesses large holdings of instrumental climate records
at individual station locations and in wider gridded form , representing a range of spatial
and temporal resolutions and covering all of the regions appropriate to your proposed
research. We also have extensive experience in the interpretation and analysis of high (ie.
annual) -resolution proxy climate data - with a relevant focus in this case, on the
production of tree-ring and tree-ring-density records that provide strong indications of
summer temperature variability in various regions of northern Eurasia , spanning time
periods ranging up to several millennia.
We have published various papers describing the nature of warming patterns , changing
seasonality (particular in the characteristics of "growing season" changes), and the
reconstruction and simulation of past and future warming characteristics in North America
and Eurasia. I include a selection of relevant references below.
I feel sure that our co-operation would result in profitable scientific advances in the
analysis of the nature and consequences of climate changes in these northern areas. I wish
you success with your application.
Keith. R. Briffa
Deputy Director,
Climatic Research Unit
Selected relevant references- for other references see [1]
Briffa, K.R., Shishov, V.V., Melvin, T.M., Vaganov, E.A., Grudd, H., Hantemirov, R.M.,
Eronen, M. and Naurxbaev, M.M., 2007
Trends in recent temperature and radial tree growth spanning 2000 years across northwest
Philosophical Transactions of The Royal Society B, [2]doi:10.1098/rstb.2007.2119
Jones, P.D. and Briffa, K.R., 2006
Unusual climate in northwest Europe during the period 1730 to 1745 based on instrumental
and documentary data.
Jones, P.D. and Moberg, A., 2003
Hemispheric and large-scale surface air temperature variations: an extensive revision and
an update to 2001.
Journal of Climate 16, 206-223 American Meteorological Society
Jones, P.D., Osborn, T.J. and Briffa, K.R., 2003
Changes in the Northern Hemisphere annual cycle: implications for paleoclimatology?
Journal of Geophysical Research 108, 4588 ([3]doi.10.1029/2003JD003695)
Briffa, K.R. and Matthews, J.A. (eds), 2002
Analysis of dendrochronological variability and associated natural climates in Eurasia
The Holocene (Special Issue) 12(6), 759pp Available in The Holocene (Special Issue) 12(6).
Briffa, K.R., Osborn, T.J., Schweingruber, F.H., Jones, P.D., Shiyatov, S.G. and Vaganov,
E.A., 2002
Tree-ring width and density around the Northern Hemisphere: Part 2, spatio-temporal
variability and associated climate patterns.
The Holocene 12, 759-789
Jones, P.D., Briffa, K.R., Barnett, T.P. and Tett, S.F.B., 1998
High-resolution palaeoclimatic records for the last millennium: interpretation, integration
and comparison with General Circulation Model control-run temperatures.
The Holocene 8(4), 455-471
Briffa, K.R., Jones, P.D., Schweingruber, F.H., Shiyatov, S.G. and Vaganov, E.A., 1996
Development of a north Eurasian chronology network: Rationale and preliminary results of
comparative ring-width and densitometric analyses in northern Russia.
Tree Rings, Environment and Humanity (Eds. J.S. Dean, D.M. Meko and T.W. Swetnam),
Radiocarbon 1996, pp.25-41
Jones, P.D. and Briffa, K.R., 1995
Growing season temperatures over the former Soviet Union.
International Journal of Climatology 15, 943-959

Professor Keith Briffa,
Deputy Director,
Climatic Research Unit
University of East Anglia
Norwich, NR4 7TJ, U.K.

Phone: +44-1603-593909
Fax: +44-1603-507784

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