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Southern Oscillation Index (SOI) (ea_data)

Source: R/data-documentation.R
soi.Rd

The SOI is a monthly measure of the seasonal atmospheric pressure differences between Tahiti and Darwin, a leading indicator of El Niño/La Niña conditions.

Usage

data(soi)

Format

An ea_data object:

data

Tibble with:

  • year: Year

  • month: Month (1–12)

  • value: SOI value (unitless index)

meta

Metadata includes

  • data_type: "Southern Oscillation Index"

  • region: "South Pacific"

  • location_descriptor: "Tahiti-Darwin"

  • units: "index"

  • source_citation: "NOAA CPC"

  • original_value_col: "anomaly"

Source

https://www.cpc.ncep.noaa.gov/data/indices/soi

Author

Andrew Edwards