This data set gives the distance to pith for each series (in mm) that
matches the ring widths for
gp.rwl – a data set of
ponderosa pine (Pinus ponderosa) from the Gus Pearson Natural
Area (GPNA) in northern Arizona, USA. Data are
further described by Biondi and Qeadan (2008) and references therein.
data.frame containing series IDs in column 1
series) and the distance (in mm) from the innermost ring
to the pith of the tree (
d2pith). This can be used
together with the ring widths to calculate the area of each ring.
DendroLab, University of Nevada Reno, USA. http://dendrolab.org/
Biondi, F. and Qeadan, F. (2008) A theory-driven approach to tree-ring standardization: Defining the biological trend from expected basal area increment. Tree-Ring Research, 64(2), 81–96.
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