Constructing the tree-ring chronology and reconstructing summertime air temperatures in southern Altai for the last 1500 years

Myglan, Vladimir S.; Zharnikova, O. A.; Малышева, Н. В.; Gerasimova, Oksana V.; Ваганов, Е. А.; Sidorov, O. V.

doi:10.1134/s1875372812030031

Cited by 23 publications

(13 citation statements)

References 7 publications

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“…Statistical treatment to remove autocorrelation and pre-whitening the data is not suitable when assessing temperature, as it disables the reconstruction of any lower frequency variance inherent to this climate element (Franke et al, 2013). Modern tree-ring based climate reconstructions thus consider RCS for tree-ring detrending intending to recover the full frequency spectrum of past temperature variability (e.g., Briffa et al, 1992;Büntgen et al, 2011;Cook and D'Arrigo, 2000;Cook et al, 2002;D'Arrigo et al, 2006;Esper et al, 2002Esper et al, , 2014Gennaretti et al, 2014;Luckman and Wilson, 2005;Myglan et al, 2012b;Schneider et al, 2015;Wiles et al, 2014).…”

Section: Trw and Mxd Autocorrelationmentioning

confidence: 99%

Signals and memory in tree-ring width and density data

et al. 2015

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a b s t r a c tIt has been suggested that maximum latewood density (MXD) should be used instead of tree-ring width (TRW) data to reconstruct post-volcanic cooling effects. A thorough assessment of high frequency signals and potentially differing memory effects in long MXD and TRW chronologies, in response to large volcanic eruptions, is still missing, however. We here present a compilation of MXD and TRW chronologies from 11 sites in the Northern Hemisphere, covering the past 750+ years, and containing significant June-August temperature signals. Basic assessment of the data using Superposed Epoch Analysis reveals a temporally extended response in TRW, by 2-3 years, to large volcanic eruptions, though post-volcanic cooling patterns vary considerably within the Northern Hemisphere network. Comparison with instrumental temperature data demonstrates the TRW chronologies underestimate cold conditions associated with large volcanic eruptions, a bias that is mitigated in the MXD data. While species composition (pine, spruce, larch) has no detectable influence on the cooling patterns, trees from high latitude sites (>60 • N) indicate a stronger and delayed (1-2 years) response to large eruptions, compared to the lower latitude sites (<60 • N). These basic findings caution against using TRW data for quantitatively estimating post-volcanic cooling and for comparison against the simulated climate effects of volcanic eruptions in models.

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Section: Trw and Mxd Autocorrelationmentioning

confidence: 99%

Signals and memory in tree-ring width and density data

et al. 2015

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“…Some of these chronologies are composed of samples collected in well-constrained, ecologically homogeneous sites (Schweingruber, 1996) sites (e.g. Dzhelo in Russia, Myglan et al, 2012b), whereas others combine data from different sites (e.g. Yamal in Russia, Briffa et al, 2013), and even from several valleys within a larger region (e.g.…”

Section: Temperature Reconstructionsmentioning

confidence: 99%

Ranking of tree-ring based temperature reconstructions of the past millennium

Esper

Krusic

Ljungqvist

et al. 2016

Quaternary Science Reviews

103

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a b s t r a c tTree-ring chronologies are widely used to reconstruct high-to low-frequency variations in growing season temperatures over centuries to millennia. The relevance of these timeseries in large-scale climate reconstructions is often determined by the strength of their correlation against instrumental temperature data. However, this single criterion ignores several important quantitative and qualitative characteristics of tree-ring chronologies. Those characteristics are (i) data homogeneity, (ii) sample replication, (iii) growth coherence, (iv) chronology development, and (v) climate signal including the correlation with instrumental data. Based on these 5 characteristics, a reconstruction-scoring scheme is proposed and applied to 39 published, millennial-length temperature reconstructions from Asia, Europe, North America, and the Southern Hemisphere. Results reveal no reconstruction scores highest in every category and each has their own strengths and weaknesses. Reconstructions that perform better overall include N-Scan and Finland from Europe, E-Canada from North America, Yamal and Dzhelo from Asia. Reconstructions performing less well include W-Himalaya and Karakorum from Asia, Tatra and S-Finland from Europe, and Great Basin from North America. By providing a comprehensive set of criteria to evaluate tree-ring chronologies we hope to improve the development of large-scale temperature reconstructions spanning the past millennium. All reconstructions and their corresponding scores are provided at www.blogs.uni-mainz.de/fb09climatology.

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“…To improve our understanding of pre-instrumental climate, reconstructions based on proxy data are needed Jones et al, 2009). Among the most widespread proxies are tree-ring width (TRW) and maximum latewood density (MXD) chronologies used to reconstruct annually resolved temperature and hydroclimatic variations at regional (e.g., Cook et al, 2000;Davi et al, 2015;Esper et al, 2007Esper et al, , 2012Gennaretti et al, 2014;Myglan et al, 2012), continental (e.g., Cook et al, 2015;Luterbacher et al, 2016), and hemispheric scales (e.g., D 'Arrigo et al, 2006;Esper et al, 2002;Schneider et al, 2015;Wilson et al, 2016). However, the potential of trees to record additional climate elements including relative humidity, sunshine and cloud cover changes has not been fully explored, and the combination of widely used TRW and MXD chronologies with other tree-ring proxies such as stable isotope ratios, height increments and cell parameters might further improve climate reconstructions (e.g., Bräun-ing, 2001;Carrer et al, 2016;Fonti & Babushkina, 2016;McCarroll et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Spruce tree-ring proxy signals during cold and warm periods

Esper¹,

Carnelli²,

Kamenik³

et al. 2017

Dendrobiology

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Abstract:The strength and temporal rigidity of climate signals are important characteristics of proxy data used to reconstruct climate variability over pre-instrumental periods. Here, we assess the performance of different tree-ring proxies, including ring width, maximum latewood density, δ 13 C, and δ 18 O, during exceptional cold (1800-1850) and warm periods . The analysis was conducted at a spruce (Picea abies) timberline site in the Swiss Alps in proximity to long homogenized instrumental records to support calibration tests against early temperature and precipitation data. In this cold environment, tree-ring width, maximum latewood density, and δ 18O are mainly controlled by temperature variations. δ 13 C is influenced by various factors including temperature, precipitation, sunshine, and relative humidity. When comparing the response patterns during cold and warm periods, ring width and maximum latewood density revealed temporally stable temperature signals. In contrast, the association between the stable isotopes and climate changed considerably between the early 19th and late 20th centuries. The temperature signal in δ 18O was stronger during the recent warm period, whereas the opposite is true for δ 13 C. In δ 13 C, the temperature signal weakened from the early 19th to the late 20th centuries, but an (inverse) precipitation signal evolved indicating that soil moisture conditions additionally limited recent carbon isotope ratios. An attempt to combine the tree-ring proxies in a multiple regression model did not substantially improve the strength of the dominating temperature signal retained in the latewood density data as this proxy already explained a significant fraction of summer temperature variability. Our findings underscore the importance of split calibration/verification approaches including cold and warm periods, and challenge transfer models based on only late 20th century observational data.

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Constructing the tree-ring chronology and reconstructing summertime air temperatures in southern Altai for the last 1500 years

Cited by 23 publications

References 7 publications

Signals and memory in tree-ring width and density data

Signals and memory in tree-ring width and density data

Ranking of tree-ring based temperature reconstructions of the past millennium

Spruce tree-ring proxy signals during cold and warm periods

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