download_asymsam_monthly: Download Asymmetric and Symmetric SAM indices

In rsoi: Import Various Northern and Southern Hemisphere Climate Indices

Download Asymmetric and Symmetric SAM indices

Description

Deprecated. The upstream API for the Asymmetric and Symmetric SAM indices is no longer available. These functions now return NULL with a warning.

Usage

download_asymsam_monthly(use_cache = FALSE, file = NULL)

download_asymsam_daily(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

NULL (invisibly). A warning is issued.

References

Campitelli, E., Diaz, L. B., & Vera, C. (2022). Assessment of zonally symmetric and asymmetric components of the Southern Annular Mode using a novel approach. Climate Dynamics, 58(1), 161-178. \Sexpr[results=rd]{tools:::Rd_expr_doi("10.1007/s00382-021-05896-5")}

Examples

## Not run: 
asymsam <- download_asymsam_monthly()

## End(Not run)

rsoi documentation built on March 13, 2026, 9:07 a.m.