Australian rainfall patterns during positive and negative Indian

Ocean Dipole years


The Indian Ocean Dipole (IOD) is a coupled ocean and atmosphere phenomenon in the equatorial Indian Ocean that affects the climate of Australia and other countries that surround the Indian Ocean basin.
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  • The average impact of positive Indian Ocean Dipole (IOD) events on Australian rainfall patterns is described here. This page includes winter-spring composites of Australian rainfall deciles during eleven selected positive IOD years, commentary and an analysis of the relationship between positive IOD and ENSO.
     
  • The average impact of negative IOD events on Australian rainfall patterns is described here. This page includes winter-spring composites of Australian rainfall deciles during ten selected negative IOD years, commentary and an analysis of the relationship between negative IOD and ENSO.