SOI {DAAGxtras} | R Documentation |
Southern Oscillation Index Data
Description
The Southern Oscillation Index (SOI) is the difference in barometric
pressure at sea level between Tahiti and Darwin. Monthly and annual SOI
data, for the years 1876-2008, are given.
Usage
SOI
Format
This data frame contains the following columns:
- Year
- a numeric vector
- Jan
- average January SOI values for each year
- Feb
- average February SOI values for each year
- Mar
- average March SOI values for each year
- Apr
- average April SOI values for each year
- May
- average May SOI values for each year
- Jun
- average June SOI values for each year
- Jul
- average July SOI values for each year
- Aug
- average August SOI values for each year
- Sep
- average September SOI values for each year
- Oct
- average October SOI values for each year
- Nov
- average November SOI values for each year
- Dec
- average December SOI values for each year
- avsoi
- a numeric vector consisting of average annual SOI
values
Source
Australian Bureau of Meteorology web pages:
http://www.bom.gov.au/climate/current/soihtm1.shtml
References
Nicholls, N., Lavery, B., Frederiksen, C. and Drosdowsky, W. 1996.
Recent apparent changes in relationships between the El Nino –
southern oscillation and Australian rainfall and temperature.
Geophysical Research Letters 23: 3357-3360.
Examples
plot(ts(SOI[, "avsoi"], start=1900),
panel=function(y,...)panel.smooth(1900:2008, y,...))
[Package
DAAGxtras version 0.7-5
Index]