All functions

download_aao()

Download Antarctic Oscillation data

download_ao()

Download Arctic Oscillation data

download_enso()

Download Southern Oscillation Index and Oceanic Nino Index data

download_mei()

Download Multivariate ENSO Index Version 2 (MEI.v2)

download_nao()

Download North Atlantic Oscillation data

download_npgo()

Download North Pacific Gyre Oscillation data

download_oni()

Download Oceanic Nino Index data

download_pdo()

Download Pacific Decadal Oscillation Data

download_soi()

Download Southern Oscillation Index data