co021: Schulman Old Tree No. 1, Mesa Verde

In dplR: Dendrochronology Program Library in R

Schulman Old Tree No. 1, Mesa Verde

Description

This data set gives the raw ring widths for Douglas fir Pseudotsuga menziesii at Mesa Verde in Colorado, USA. There are 35 series. Data set was created using read.rwl and saved to an .rda file using save.

Usage

data(co021)

Format

A data.frame containing 35 tree-ring series in columns and 788 years in rows.

Source

International tree-ring data bank, Accessed on 20-April-2021 at https://www.ncei.noaa.gov/pub/data/paleo/treering/measurements/northamerica/usa/co021.rwl

References

Schulman, E. (1963) Schulman Old Tree No. 1 Data Set. IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series 1983-CO021.RWL. NOAA/NCDC Paleoclimatology Program, Boulder, Colorado, USA.

Examples

library(utils)
data(co021)

## Where the data came from. read.tucson() records what it saw and attaches
## it to what it returns; this data set carries that record.
prov <- attr(co021, "dplR.provenance")
prov$file          # the archived file it was read from
prov$precision     # the precision each series was measured at
prov$gaps          # interior gaps, if any -- this file has none
prov$events        # problems found while reading -- none here either

## rwl.report() puts the file and precision at the head of its report
rwl.report(co021)

dplR documentation built on Oct. 1, 2026, 9:07 a.m.