Indian Ocean Gyre

Short description: Major oceanic gyre in the Indian Ocean

The Indian Ocean gyre

The Indian Ocean gyre, located in the Indian Ocean, is one of the five major oceanic gyres, large systems of rotating ocean currents, which together form the backbone of the global conveyor belt. The Indian Ocean gyre is composed of two major currents: the South Equatorial Current, and the West Australian Current.

Normally moving counter-clockwise, in the Northern Hemisphere winter the Indian Ocean gyre reverses direction due to the seasonal winds of the South Asian Monsoon. In the summer, the land is warmer than the ocean, so surface winds blow from the ocean to the land. However, during the winter, these temperatures reverse, making the winds blow from the land to the ocean. Because most of the air pressure gradient is retained behind the Tibetan Plateau, air pressure gradients over the Indian Ocean and the gyre are small. This results in winds of moderate strength, due to the protection from the full force winds blowing off the Mongolian high-pressure region. Because of these moderate, dry winds, the Winter Monsoon season in the Indian Ocean region is the dry season for most of Southern Asia. Due to this seasonal wind cycle, the currents of the Indian Ocean, which make up the Indian Ocean gyre, are directly affected, causing reversal.[1]

## Garbage patch

This section is an excerpt from Indian Ocean garbage patch[ edit ]

## References

1. ↑ Tomczak, Matthias & J. Stuart Godfrey: Regional Oceanography: and Introduction 2nd Edition. (2003). ISBN 8170353068

## External links

* Ocean currents

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Ocean currents and gyres

Currents|

| Arctic Ocean|

* East Greenland
* North Icelandic
* Norwegian
* Transpolar Drift Stream

|

Atlantic Ocean|

* Angola
* Antilles
* Azores
* Baffin Island
* Benguela
* Brazil
* Canary
* Cape Horn
* Caribbean
* East Greenland
* East Iceland
* Falkland
* Florida
* Guinea
* Gulf Stream
* Irminger
* Labrador
* Lomonosov
* Loop
* North Atlantic
* North Brazil
* North Equatorial
* Norwegian
* Portugal
* Slope Jet
* South Atlantic
* South Equatorial
* West Greenland
* West Spitsbergen

Indian Ocean|

* Agulhas
* Agulhas Return
* East Madagascar
* Equatorial Counter
* Indian Monsoon
* Indonesian Throughflow
* Leeuwin
* Madagascar
* Mozambique
* North Madagascar
* Somali
* South Australian
* South Equatorial
* West Australian

Pacific Ocean|

* Alaska
* Aleutian
* California
* Cromwell
* Davidson
* East Australian
* East Korea Warm
* Equatorial Counter
* Humboldt
* Indonesian Throughflow
* Kamchatka
* Kuroshio
* Mindanao
* North Equatorial
* North Korea Cold
* North Pacific
* Oyashio
* South Equatorial
* Tasman Front

Southern Ocean|

* Antarctic Circumpolar
* Tasman Outflow

Gyres|

| Major gyres|

* Indian Ocean Gyre
* North Atlantic Gyre
* South Atlantic Gyre
* North Pacific Gyre
* South Pacific Gyre

|

Other gyres|

* Beaufort Gyre
* Ross Gyre
* Weddell Gyre

Related|

* Atmospheric circulation
* Boundary current
* Coriolis force
* Ekman transport
* Marine debris
* Marine garbage patches
* Great Pacific
* Indian Ocean
* North Atlantic
* South Pacific
* Thermohaline circulation

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