The intension of this report is to critically analyse the mathematical algorithms behind the catchment hydrological and bioretention modelling software, MUSIC. The report outlines four major sections of the software in order to determine the feasibility, efficiency and accuracy of the software. These four sections are as follows:
• Rainfall – Runoff
• Storm water routing
• Gross pollutant generation and treatment
• Bioretention system performance
The four elements of the report were critically reviewed and analysed. Each element was broken down into first principal algorithms in order to compare with other possible methods of calculation, which generally took the form of other successful and popular models and pieces of software. The comparison led to the view that although MUSIC does use the best available mathematics in the program, it is let down by it’s oversimplification of the processes. This is exemplified by the user’s inability to input integral parameters into the software, affecting the accuracy of the results.
The second major flaw in the software is its user unfriendliness. The software does not offer an easy to use format, and this significantly affects the efficiency of the program and therefore the feasibility of the software.
Overall, the software rates highly as a combined catchment hydrological bioretention modelling package in the sense of mathematics used, but due to poor training and use of the software, many of the systems that MUSIC was designed to develop have been failing.