download_aao {rsoi}

Download Antarctic Oscillation data

Description

Projection of the monthly 700 hPa anomaly height field south of 20°S on the first EOF obtained from the monthly 700 hPa height anomaly.

Usage

download_aao(use_cache = FALSE, file = NULL)

Arguments

use_cache

logical option to save and load from cache. If 'TRUE', results will be cached in memory if 'file' is 'NULL' or on disk if 'file' is not 'NULL'.

file

optional character with the full path of a file to save the data. If 'cache' is 'FALSE' but 'file' is not 'NULL', the results will be downloaded from the internet and saved on disk.

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

• AAO: Antarctic Oscillation

References

https://www.cpc.ncep.noaa.gov/products/precip/CWlink/daily_ao_index/aao/aao.shtml

Examples

## Not run: 
aao <- download_aao()

## End(Not run)