Assignment Task

 

Project background

A land developer has approached you to prepare hydrologic analysis of block of land planned for development (see attached map – based on your student number as explained above). The contract stipulates you to analyse the area that is being proposed for development. The purpose is to satisfy regulatory requirements and get necessary approvals (from hydraulic and hydrologic perspectives) for development. You will need to collect necessary data (as formulated below) using ARR Vol 2 to construct rainfall patterns and the Bureau of Meteorology site. Perform detailed hydrologic and hydraulic analyses of the basin before and after the proposed development. Discuss, in detail, the actions you propose so that the regulatory agencies’ requirements are met. You will need to perform analyses by using the basic principles you’ve learnt in Surface Water Hydrology (301329), Hydraulics (300765) and Fluid Mechanics (300762).

You will also need to confirm reliability of your results by using the software packages HEC-HMS. The submission must be in the form of a technical report following the formulated steps given below with a brief introduction to the problem, methodology used, your findings, recommendations, and references + all maps/drawings.

It is to be typed using Times New Roman size 12 font and double spaced. You will need to submit your report, all associated (Microsoft Excel) spreadsheets and all HECHMS files. Submissions is via Turnitin in vUWS.

Step 1: Physical parameters estimation
Using the scale provided in basin delineation, estimate (an approximate estimation will be enough) the followings:
Estimate the area of each sub-basin.
Compute the total area of the basin
Estimate the channel length. For example, you need to estimate lengths of two channel (1 to 2 and 2 to outlet) for basin B whereas for basin A and C, only one channel length is required (1 to outlet).

Step 2: Rainfall hyetograph construction
Use the Bureau of Meteorology web site (http://www.bom.gov.au) to generate the IFD curves for your catchment. Use the 2016 IFD and the latitude and longitude stated in the figures (for your basin) to generate IFD information for your site. Use % AEP as allocated above and 9-hr storm for further analysis. Include both IFD table and IFD curves in your report.
Generate total rainfall hyetograph for the storm generated in above step (you need to use ARR Data Hub web site. Include total rainfall hyetograph, both table and histogram in your report.

 

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  • Uploaded By : Brett
  • Posted on : August 25th, 2019

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