gamair (version 1.0-2)

co2s: Atmospheric CO2 at South Pole

Description

Monthly CO2 concentration in parts per million at the South Pole.

Usage

data(co2s)

Format

A data frame with 3 columns and 507 rows. The columns are:

co2

atmospheric CO2 concentration in parts per million

c.month

cumulative number of months since Jan 1957

month

month of year

References

Keeling C.P. and T.P Whorf (2000) Atmospheric CO2 records from sites in the SIO air sampling network. In Trends: A Compedium of Data on Global Change. Carbon Dioxide Analyis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge Tenn., USA

Wood, S.N. (2006, 2017) Generalized Additive Models: An Introduction with R. CRC

Examples

# NOT RUN {
  data(co2s)
  with(co2s,plot(c.month,co2,type="l",ylab=
  expression(paste(CO[2]," in ppm.")),xlab="Month since Jan. 1957"))
# }