UsingR: arctic.oscillations – R documentation

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arctic.oscillations

Measurement of sea-level pressure at the arctic

A monthly time series from January 1899 to June 2002 of sea-level pressure measurements relative to some baseline.

data(arctic.oscillations)

The format is: chr "arctic.oscillations"

See https://toptotop.org/ for more details on the importance of climate studies.

The data came from the file AO\_TREN\_NCEP\_Jan1899Current.ascii found many years ago at http://www.atmos.colostate.edu/ao/Data/ao\_index.html.

data(arctic.oscillations)
x = ts(arctic.oscillations, start=c(1899,1), frequency=12)
plot(x)

Data Sets, Etc. for the Text "Using R for Introductory Statistics", Second Edition

v2.0-6

GPL (>= 2)

Authors

John Verzani <verzani@math.csi.cuny.edu>

Initial release