Age determination on a catastrophic rock avalanche using tree-ring oxygen isotope ratios - The scar of a historical gigantic earthquake in the Southern Alps, central JapanOxygen isotopic dendrochronologyBuried wood logDondokosawa rock avalancheGoki-Shichido ocean-trench earthquake...
This study was based on tree-ring analyses and builds a comprehensive case for paleoseismology through the calendar-dating of co-seismic rockfalls. The suitability of trees in recording co-seismic falls was realized with 20 old (mean age: 103.9 ± 40.1 yrs)N.pumiliotrees (Table1) growin...
1)tree ring树木年轮 1.Correlation between chemical element contents in tree rings and those in soils near tree roots in the southern suburbs of Beijing,China.;树木年轮与其根部土壤化学元素含量的相关性 2.In this paper, with an aim of better monitoring air pollution, we selected tree bark and ...
Across all measurement heights for each tree, we regressed ring area against wood radius and computed the coefficient of determination (R2) for each year. These ring-area versus radius correlations tended to be positive and strong (R2 > 0.9) most years as a consequence of geometry, but when...
7 Detrending - LTRR Laboratory of Tree-Ring Research7去趋势--树木年轮研究实验室LTRR 热度: 浅谈树木年龄测定方法的研究进展 Progress of Dating Methods of Tree Age 热度: 2024年树木直径测量仪项目可行性研究报告 热度: 相关推荐 Measurement of Tree Diameter Diameter of a tree is THE most ...
1993. Estimating ecesis for tree-ring dating of moraines: A comparative study from the Canadian Cordillera. Arctic and Alpine Research, 25: 63-68.McCarthy, D.P., and Luckman, B.H. 1993. Estimating ecesis for tree-ring dating of moraines: a comparative study from the Canadian Cordillera....
Since we were interested in high-frequency variability, we removed age trends from individual series using a smoothing spline with a 50% frequency cutoff at a 30-year-long window. Tree-ring indices (TRI) were calculated as ratios of observed tree-ring width and the value predicted by the ...
The determination of the frequency of rockfall events continues to challenge quantitative hazard assessments in most mountain areas. Dendrogeomorphological analysis was used to assess rockfall frequency on talus slopes at Sola d'Andorra (Eastern Pyrenees, Andorra). Rockfall events were dated at two sites...
additional records might also improve the signal-to-noise-ratio during grand solar minima to give further insights about the 11-year solar cycles during prolonged times of low solar activity. Longer single year tree-ring based14C will also provide new opportunities to act as a baseline for proxy...