gamair (version 0.0-9)

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:

• co2atmospheric CO2 concentration in parts per million
• c.monthcumulative number of months since Jan 1957
• monthmonth of year

Source

http://cdiac.esd.ornl.gov/trends/co2/

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) Generalized Additive Models: An Introduction with R. CRC

Examples

  data(co2s)
  with(co2s,plot(c.month,co2,type="l",ylab=
  expression(paste(CO[2]," in ppm.")),xlab="Month since Jan. 1957"))