Daily Rainfall at Four Major Melbourne Storage Dams

Supplying daily point rainfall values observed over 24-hour periods from 8am to 8am. The data is collected via telemetry and verified with daily field observations at the Maroondah, O'Shannassy, Thomson, and Upper Yarra dam catchments. It is intended for long-term rainfall analysis at these four major water supply sources.

Use Cases

• Conduct long-term trend analysis of daily rainfall patterns at the four specified dam catchments.
• Correlate daily rainfall observations with water supply levels and reservoir inflow models.
• Validate and calibrate hydrological models using verified daily point rainfall data from telemetry devices.

Strengths

• Data is verified with daily field observations, adding a layer of quality control.
• Focuses on four major, defined catchment areas: Maroondah, O'Shannassy, Thomson, and Upper Yarra dams.
• Data is provided in multiple formats including CSV, XLSX, and GeoJSON for accessibility.

Limitations

• The dataset is explicitly not suitable for high-frequency event modeling or short-duration storm analysis.
• The provider makes no guarantees regarding data accuracy or completeness, placing the assessment burden on the user.
• Specific metrics like total row count, column details, and temporal coverage are not provided in the input.

Provenance

Source

Melbourne Water Corporation via the Melbourne Water Open Data Hub.

Collection Method

Collected with rainfall telemetry devices installed at catchment storage dams and verified with daily field observations.

Freshness

Data was last updated in March 2026, indicating active maintenance.

Geography

Catchment areas of four major Melbourne storage dams: Maroondah, O'Shannassy, Thomson, and Upper Yarra.