A new atmospheric circulation tree-ring index (ACTI) derived from climate proxies: Procedure, results and applications

Schultz, Johannes; Neuwirth, Burkhard

doi:10.1016/j.agrformet.2012.05.007

Cited by 9 publications

(19 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Following Schultz and Neuwirth (2012), an ACTI time series was computed for each TRW chronology for the common 1871-1993 period. ACTI links weathertype data with proxy data such as TRW chronologies.…”

Section: Acti Calculationmentioning

confidence: 99%

“…the identification of the common variability among all 25 ACTI records, we used a principal component analysis (PCA) (Peters et al 1981). This process differed slightly from the procedure described by Schultz and Neuwirth (2012): as recently proven, the PCA approach is better to capture common large-scale climate signals than the grouping algorithm implemented in the original ACTI procedure (Schultz et al 2015).…”

Section: Acti Calculationmentioning

confidence: 99%

“…characteristic configurations of synoptic-scale pressure systems) on tree growth in mid-latitude Asia. This involves the calculation of an atmospheric circulation tree-ring index (ACTI), which has been successfully applied on a European tree-ring network (Schultz and Neuwirth 2012;Schultz et al 2015). It has been demonstrated that the NAO caused species-and site-specific climate response patterns.…”

Section: Introductionmentioning

confidence: 99%

“…It has been demonstrated that the NAO caused species-and site-specific climate response patterns. For instance, growth conditions for spruce and oak in Central Europe was enhanced during the positive NAO phase, when increased zonal wind flow caused warmer and wetter spring climate conditions (Schultz and Neuwirth 2012).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Synoptic-scale circulation patterns during summer derived from tree rings in mid-latitude Asia

et al. 2016

View full text Add to dashboard Cite

Russia and an anticyclone over Mongolia; 3. trees at two high elevation sites show positive relations to a zonal cyclone extending from mid-latitude Eurasia to the West Pacific. The identified synoptic-scale circulation patterns showed spatiotemporal variability in their intensity and position, causing temporally varying climate conditions in mid-latitude Asia. Our results highlight that for regions with less pronounced atmospheric action centers during summer such as the occurrence of large-scale cyclones and anticyclones, synoptic-scale circulation patterns can be extracted and linked to the Northern Hemisphere circulation system. Thus, we provide a new and solid envelope for climate studies covering the past to the future.Abstract Understanding past and recent climate and atmospheric circulation variability is vital for regions that are affected by climate extremes. In mid-latitude Asia, however, the synoptic climatology is complex and not yet fully understood. The aim of this study was to investigate dominant synoptic-scale circulation patterns during the summer season using a multi-species tree-ring width (TRW) network comprising 78 sites from mid-latitude Asia. For each TRW chronology, we calculated an atmospheric circulation tree-ring index (ACTI), based on 1000 hPa geopotential height data, to directly link tree growth to 13 summertime weather types and their associated local climate conditions for the period 1871-1993. Using the ACTI, three groups of similarly responding tree-ring sites can be associated with distinct large-scale atmospheric circulation patterns: 1. growth of drought sensitive trees is positively affected by a cyclone over northern Russia; 2. temperature sensitive trees show positive associations to a cyclone over northwestern Electronic supplementary material The online version of this article (

show abstract

Section: Acti Calculationmentioning

confidence: 99%

Section: Acti Calculationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Synoptic-scale circulation patterns during summer derived from tree rings in mid-latitude Asia

et al. 2016

View full text Add to dashboard Cite

show abstract

“…During their growth and formation process, tree rings can be affected by numerous climatic factors in the current and previous year [8][9][10]. Tree rings growth is not only constrained by genetic factors but also by environmental factors [11][12][13]. Moreover, the influence of climatic factors and tree radial growth can be used to construct a model of tree growth based on climate changes, which can be used to roughly estimate the growth of trees with meteorological datum.…”

Section: Introductionmentioning

confidence: 99%

The Response of Chinese Fir Forest Tree Ring Growth to Climate Change in China’s Dagangshan Region

Liu¹,

Gao²,

Panwei³

et al. 2019

Pol. J. Environ. Stud.

View full text Add to dashboard Cite

Chinese fir (Cunninghamia lanceolata (Lamb) Hook.) in the Dagangshan region of Jiangxi Province in southern China was selected to explore the impact of climatic factors on tree ring width growth. Results showed that the signal-to-noise ratio (SNR) and mean sensitivity (MS) were large while the first order autocorrelation coefficient (FOAC) was small, and the chronology contains abundant climatic information. The tree ring width index of Chinese fir was significantly positively correlated with the precipitation in December of the previous year and June of the current year, and significantly negatively correlated with that in the current May and August. The tree ring width index was significantly positively correlated with the temperature in April and May of the current year, but significantly negatively correlated with that in July of the current year. The tree ring width index had a good change consistency with the warmth index (W i ) and humidity index (H i ). The response function of Chinese fir ring width analysis shows that the warmth index is the main factor affecting tree ring growth, followed by the humidity index, mean annual precipitation, and mean annual temperature. The comprehensive effect of temperature and precipitation factors have significant influence on the tree ring width growth of Chinese fir. Results can provide a scientific basis for studying the effect of climatic factors on tree growth in sub-tropical regions in China and many other parts of the world.

show abstract

Interdecadal modulation of the Atlantic Multi-decadal Oscillation (AMO) on southwest China’s temperature over the past 250 years

et al. 2018

View full text Add to dashboard Cite

A new atmospheric circulation tree-ring index (ACTI) derived from climate proxies: Procedure, results and applications

Cited by 9 publications

References 60 publications

Synoptic-scale circulation patterns during summer derived from tree rings in mid-latitude Asia

Synoptic-scale circulation patterns during summer derived from tree rings in mid-latitude Asia

The Response of Chinese Fir Forest Tree Ring Growth to Climate Change in China’s Dagangshan Region

Interdecadal modulation of the Atlantic Multi-decadal Oscillation (AMO) on southwest China’s temperature over the past 250 years

Contact Info

Product

Resources

About