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A 7400-year tree-ring chronology in northern Swedish Lapland: natural climatic variability expressed on annual to millennial timescales

Grudd, H; Briffa, KR; Karlen, W; Bartholin, Thomas S. LU ; Jones, PD and Kromer, B (2002) In The Holocene 12(6). p.657-665
Abstract
Tree-ring widths from 880 living, dry dead, and subfossil northern Swedish pines (Pinus sylvestris L.) have been assembled into a continuous and precisely dated chronology (the Tornetrask chronology) covering the period 5407 BC to AD 1997. Biological trends in the data were removed with autoregressive standardization (ARS) to emphasize year-to-year variability, and with regional curve standardization (RCS) to emphasize variability on timescales from decades to centuries. The strong association with summer mean temperature (June-August) has enabled the production of a temperature reconstruction for the last 7400 years, providing information on natural summer-temperature variability on timescales from years to centuries. Numerous cold... (More)
Tree-ring widths from 880 living, dry dead, and subfossil northern Swedish pines (Pinus sylvestris L.) have been assembled into a continuous and precisely dated chronology (the Tornetrask chronology) covering the period 5407 BC to AD 1997. Biological trends in the data were removed with autoregressive standardization (ARS) to emphasize year-to-year variability, and with regional curve standardization (RCS) to emphasize variability on timescales from decades to centuries. The strong association with summer mean temperature (June-August) has enabled the production of a temperature reconstruction for the last 7400 years, providing information on natural summer-temperature variability on timescales from years to centuries. Numerous cold episodes, comparable in severity and duration to the severe summers of the seventeenth century, are shown throughout the last seven millennia. Particularly severe conditions suggested between 600 and 1 BC correspond to a known period of glacier expansion, The relatively warm conditions of the late twentieth century do not exceed those reconstructed for several earlier time intervals, although replication is relatively poor and confidence in the reconstructions is correspondingly reduced in the pre-Christian period, particularly around 3000, 1600 and 330 BC. Despite the use of the RCS approach in chronology construction, the 7400-year chronology does not express the full range of millennial-timescale temperature change in northern Sweden. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Pinus, summer temperature, climate, dendroclimatology, tree rings, sylvestris, northern Scandinavia, Holocene
in
The Holocene
volume
12
issue
6
pages
657 - 665
publisher
SAGE Publications Inc.
external identifiers
  • wos:000179334900003
  • scopus:0036856183
ISSN
0959-6836
DOI
10.1191/0959683602hl578rp
language
English
LU publication?
yes
id
f892c0e7-9938-4602-9e7c-a8bc2039c6e8 (old id 322838)
date added to LUP
2007-08-21 16:13:07
date last changed
2017-11-12 03:18:11
@article{f892c0e7-9938-4602-9e7c-a8bc2039c6e8,
  abstract     = {Tree-ring widths from 880 living, dry dead, and subfossil northern Swedish pines (Pinus sylvestris L.) have been assembled into a continuous and precisely dated chronology (the Tornetrask chronology) covering the period 5407 BC to AD 1997. Biological trends in the data were removed with autoregressive standardization (ARS) to emphasize year-to-year variability, and with regional curve standardization (RCS) to emphasize variability on timescales from decades to centuries. The strong association with summer mean temperature (June-August) has enabled the production of a temperature reconstruction for the last 7400 years, providing information on natural summer-temperature variability on timescales from years to centuries. Numerous cold episodes, comparable in severity and duration to the severe summers of the seventeenth century, are shown throughout the last seven millennia. Particularly severe conditions suggested between 600 and 1 BC correspond to a known period of glacier expansion, The relatively warm conditions of the late twentieth century do not exceed those reconstructed for several earlier time intervals, although replication is relatively poor and confidence in the reconstructions is correspondingly reduced in the pre-Christian period, particularly around 3000, 1600 and 330 BC. Despite the use of the RCS approach in chronology construction, the 7400-year chronology does not express the full range of millennial-timescale temperature change in northern Sweden.},
  author       = {Grudd, H and Briffa, KR and Karlen, W and Bartholin, Thomas S. and Jones, PD and Kromer, B},
  issn         = {0959-6836},
  keyword      = {Pinus,summer temperature,climate,dendroclimatology,tree rings,sylvestris,northern Scandinavia,Holocene},
  language     = {eng},
  number       = {6},
  pages        = {657--665},
  publisher    = {SAGE Publications Inc.},
  series       = {The Holocene},
  title        = {A 7400-year tree-ring chronology in northern Swedish Lapland: natural climatic variability expressed on annual to millennial timescales},
  url          = {http://dx.doi.org/10.1191/0959683602hl578rp},
  volume       = {12},
  year         = {2002},
}