nm046: Los Alamos Tree Ring Widths

In dplR: Dendrochronology Program Library in R

Los Alamos Tree Ring Widths

Description

This data set gives the raw ring widths for Douglas fir Pseudotsuga menziesii near Los Alamos New Mexico, USA. There are 8 series. Data set was created using read.rwl and saved to an .rda file using save.

Usage

data(nm046)

Format

A data.frame containing 8 tree-ring series in columns and 289 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/nm046.rwl

References

O'Brien, D (2002) Los Alamos Data Set. IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series 2002-NM046.RWL. NOAA/NCDC Paleoclimatology Program, Boulder, Colorado, USA.

Examples

library(utils)
data(nm046)

## 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(nm046, "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(nm046)

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