University of Tasmania, Australia

UTAS Home | UTAS Staff | UTAS Contacts

CSIRO-UTAS PhD Program in Quantitative Marine Science

UTAS Home > IMAS Home > NEW QMS PhD Projects  >  Predictability of the interaction between El Nino Southern Oscillation and the tropical Indian Ocean

Predictability of the interaction between El Nino Southern Oscillation and the tropical Indian Ocean

Supervision Team

UTAS

A/Prof Neil Holbrook

Dr Terry O'Kane

CSIRO

Dr Peter McIntosh

Background:

El Nino Southern Oscillation (ENSO) is a global, seasonal climate anomaly controlled by ocean-atmosphere interaction in the central and eastern equatorial Pacific Ocean . Climate anomalies in the monsoon systems of Australia , Asia and Africa are also modulated by ocean-atmosphere interaction in the tropical Indian Ocean , where the dominant pattern is the recently discovered Indian Ocean Dipole (IOD) or zonal mode. ENSO can influence IOD by an atmospheric tele-connection but IOD also is able to grow on its own. This study will assess the mechanisms that control IOD and its predictability.

Objectives:

  • Compare the observed thermal and haline structure of IOD to the simulation of it by two dynamical climate prediction systems-COCA (CAR) and POAMA (BMRC).
  • Assess the predictability of IOD using statistical and dynamical methods.