1

Regional Oceanography – Indian Ocean

http://www.cmima.csic.es/mirror/mattom/regoc/pdfversion.html

Global Ocean bathymetry

2

Indian Ocean bathymetry

Tomczak & Godfrey, 2005

Global SST and SSS

Tomczak & Godfrey, 2005

3

Global SL pressure and winds

IO - seasonal wind

Schott & McCreary, 2001

4

Wind-driven circulation

Schott & McCreary, 2001

Circulation - SW monsoon

Schott & McCreary, 2001

5

Circulation – NE monsoon

Schott & McCreary, 2001

Water masses - western IO

Tomczak & Godfrey, 2005

6

Water masses – central IO

Tomczak & Godfrey, 2005

Water masses – IO thermocline

Tomczak & Godfrey, 2005

7

Water masses

Schott & McCreary, 2001

‘Unusual’ current systems

Schott & McCreary, 2001

Somali Current– Arabian Sea

Indonesian Throughflow

LeeuwinCurrent

Equatorial Jet

8

Equatorial Jet (Wyrtki Jet)

Equatorial Jet (Wyrtki Jet)

Schott & McCreary, 2001

9

Surface currents – Arabian Sea

Schott & McCreary, 2001

Somali Current

Schott & McCreary, 2001

10

Somali Current

Schott & McCreary, 2001

Somali Current upwelling

Tomczak & Godfrey, 2005

Schott & McCreary, 2001

11

Somali Current

Schott & McCreary, 2001

Arabian Sea upwelling

Energetic jets emerging from the coastal upwelling region cool the Arabian Sea and carry nutrients and other matter from the

coastal region into the interior.

12

Indonesian Archipelago

Tomczak & Godfrey, 2005

Indo-Pacific (Indonesian) Throughflow

Tomczak & Godfrey, 2005

Steric height 0/2000 dbar

13

Indo-Pacific (Indonesian) Throughflow

Schott & McCreary, 2001

Leeuwin Current

Tomczak & Godfrey, 2005

14

Leeuwin Current

Schott & McCreary, 2001

Leeuwin Current

Schott & McCreary, 2001

15

‘Unusual’ current systems

Schott & McCreary, 2001

Somali Current– Arabian Sea

Indonesian Throughflow

LeeuwinCurrent

Equatorial Jet

title

Schott & McCreary, 2001