Bureau Home » Water Information » Water Dictionary » Southern Oscillation Index (SOI)

• Water Information
  • Water data
    • Design Rainfalls
    • Geofabric
    • Groundwater Information
    • Hydrologic Reference Stations
    • Murray-Darling Basin Water Information
    • Water Markets Information
    • Water Data Online
  • Water status
    • Water Assessments
    • National Water Account
    • Urban National Performance Report
    • Urban Water Information
    • Water Restrictions
    • Water Storage
  • Water forecasts
    • Floods
    • 7-day Streamflow Forecasts
    • Seasonal Streamflow Forecasts
• Regulations
  • Find your organisation
  • About the Regulations
    • Background
    • Principles and Policies
    • Categories of Persons
    • Categories of Water Information
    • Subcategories of Water Information
    • Amendments
    • Regulator performance framework
    • Interagency Working Group report
  • Regulations Data
    • Data Format Requirements
    • Data Delivery
    • Metadata and Contextual Information
    • Data Licensing
  • Incorporated documents
    • Commercially Sensitive Sites
    • Metadata and Contextual Information Requirements
    • Persons and Classes of Persons
    • Urban Water Management Information Requirements
• Standards
  • Water Data Transfer Format
    • About WDTF
    • Download WDTF
    • WDTF Validation
    • WDTF Tools
    • WDTF FAQ
  • About Standards
  • Collaborative Approach
    • National Industry Guidelines for hydrometric monitoring
    • National Industry Guideline for water quality metadata
  • Water Accounting Standards
    • Australian Water Accounting Standards
    • Resources
    • Development
    • Frequently asked questions
  • Flood Warning Standard
• About
  • Water information role
  • Water contacts
  • Publications
  • Video

Australian Water Information Dictionary

Southern Oscillation Index (SOI)

An index calculated from the monthly or seasonal fluctuations in the air pressure difference between Tahiti and Darwin. See the Climate page on SOI for more information.

This definition applies to:

• Glossary for Water forecasts: Dynamic streamflow
• Glossary for Water forecasts: Seasonal streamflow
• Glossary for Water status: Australian Water Resources Assessment

Water links

• Murray Darling Basin water information
• Water Act 2007
• Water Regulations 2008
• Water market information
• Water Dictionary
• Publications
• Contact Us