Description

This dataset gives the tree-ring indices for Pinus sylvestris at a site near Visdalen, Norway. The chronology represents 34 dated series and spans the period between 1600 and 1983. The raw measurements were obtained from the ITRDB (see source), and read in, detrended with cubic splines (frequency cutoff of 50 percent at two thirds of the series length) and averaged using read.rwl, detrend, and chron from package dplR.

Usage

Format

A data.frame containing tree-ring indices and replication depth with respective years as rownames.

Source

Briffa K. Briffa - Visdalen - PISY - ITRDB NORW015. http://hurricane.ncdc.noaa.gov/pls/paleox/f?p=519:1:::::P1_STUDY_ID:2861. Accessed 2014/07/03.