Indian Ocean basin mode (Q705)
Subject, term, tag: Indian Ocean basin mode
- Indian Ocean basin (IOB) mode
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Indian Ocean basin mode |
Subject, term, tag: Indian Ocean basin mode |
|
Statements
IPCC Glossary v1.5
1 reference
27 May 2026
A mode of interannual variability characterized by a temporal alternation of basin-wide warming and cooling of the Indian Ocean sea surface. It mostly develops in response to El Niño–Southern Oscillation (ENSO), but often persists after ENSO’s equatorial eastern Pacific signal has dissipated. The IOB affects atmospheric circulation, temperature, and precipitation in South, South East, and East Asia as well as Africa, and modulates tropical cyclone activity in the north western Pacific. See Section AIV.2.4 in Annex IV of the AR6 WGI report. (English)
IPCC Glossary v1.5
1 reference
27 May 2026