Research projects

Existing methods for high accuracy ground based nutrient measurement require laboratory analysis of remotely collected grab samples. This ensures the data is NATA accredited, but of course this approach is impractical where real-time high-resolution data is required. The alternate approach typically used is to install a remote sensor probe, which would normally be based on ion selective electrodes or optical absorption, however these do not provide the same level of data accuracy. In addition, measuring for multiple analytes often requires multiple sensor probes, each tuned to specific target analytes. As a result, the use of these devices for verified monitoring of nutrient concentrations is more limited.

This project aims to demonstrate the application of remote real-time measurement systems for providing in-situ data on nutrient concentrations, along with integration of that data with existing hydrological and meteorological models. A system of satellite-linked in-situ real time nutrient analyzers provides a powerful toolset for the active management of pollutants entering waterways due to agricultural activities. By applying this toolset to on-farm management in far north Queensland, there are potentially significant commercial outcomes to be achieved as well as benefits through the Reef Credit Scheme implemented by the Queensland government.

An outcome of the project then, would be a demonstration of the Eco Detection device as a verified monitoring method for nutrient concentrations in surface water flowing to the reef. Establishment of this as a verified monitoring method then allows for more advanced data integration to be built on top of this baseline measurement. A further outcome of the project is the demonstration of the satellite-linked system of online nutrient analyzers, which is critical for enabling remote measurement capability outside the existing cellular network range.

Project Leader

Dr Phillip Fox, Eco Detection P/L

This goal of the project was to develop an advanced, multi-channel, ground-based microwave Sounder for 3D profiling of the atmosphere. The need for such a Sounder has been recognized around the world as vital for improving global weather forecasts.

This ground-based system is used to develop advanced RF hardware and software for a new generation Sounder. The overall goal is to develop a constellation of satellite Sounders, providing high-resolution radiance observations and atmospheric temperature and water profiles which will provide real-time input to advanced NWP models, significantly improving weather forecasts.

Whilst an operational Sounder has not yet been delivered, a range of key milestones have been completed including:

• Initial overall hardware & software design;
• Prototype construction; and
• Operational refinement of design based on prototype testing (partial completion)
  

Project Leader

Gary Quinn, ESS Earth Sciences