The near real-time tropospheric zenith delay estimation using GPS project seeks to contribute to the improved weather forecasting capability of Australia by creating less than three hourly operational analysis of derived water vapour estimates. These derived water vapour estimates cause delays of microwave signals in the atmosphere resulting in less than accurate weather forecasting.

This project will be implemented in two phases.

The first 12 months will see the operational use of GPS derived ZTD estimates into the Australia Bureau of Meteorology’s weather forecasting processes.

The second phase is to undertake research focused on exploring the use of Global Navigation Satellite System (GNSS) data other than GPS, such as Beidou, Glonass, QZSS, Galileo, IRNSS, to estimate improved ZTD and potentially Slant Total Delays (STD). This work will link to efforts in the CRCSIs Analysis Centre Software (ACS) Project.

Project Team

John Dawson
Email: john.dawson@ga.gov.au