| download_enso {rsoi} | R Documentation |
Download Southern Oscillation Index and Oceanic Nino Index data
Description
The Southern Oscillation Index is defined as the standardized difference between barometric readings at Darwin, Australia and Tahiti. The Oceanic Nino Index is average sea surface temperature in the Nino 3.4 region (120W to 170W) averaged over three months. Phases are categorized by Oceanic Nino Index:
Warm phase of El Nino/ Southern Oscillation when 3-month average sea-surface temperature departure of positive 0.5 degC
Cool phase of La Nina/ Southern Oscillation when 3-month average sea-surface temperature departure of negative 0.5 degC
Neutral phase is defined as when the three month temperature average is between +0.5 and -0.5 degC
Usage
download_enso(climate_idx = c("all", "soi", "oni", "npgo"), create_csv = FALSE)
Arguments
climate_idx |
Choose which ENSO related climate index to output. Current arguments supported are soi (the Southern Oscillation Index), oni (the Oceanic Nino Index), npgo (the North Pacific Gyre Oscillation) and all. all outputs each supported index variable as a slimmer dataset than each individual climate index call. |
create_csv |
Logical option to create a local copy of the data. Defaults to FALSE. |
Value
Date: Date object that uses the first of the month as a placeholder. Date formatted as date on the first of the month because R only supports one partial of date time
Month: Month of record
Year: Year of record
ONI: Oceanic Oscillation Index
phase: ENSO phase
SOI: Southern Oscillation Index
NPGO: North Pacific Gyre Oscillation
Examples
## Not run:
enso <- download_enso()
## End(Not run)