Task 1. Estimation of physical parameters Estimate the area of each sub-catchment. Compute the total catchment area. Estimate the length of channels. This will be different for different catchments. For catchment 1 and 3, you will need to estimate lengths of one channel (A to outlet) whereas for catchment 2, the lengths of two channels (A to B, and B to outlet) is required. Task 2. Construction of rainfall hyetographs Use the Bureau of Meteorology web site (http://www.bom.gov.au) to generate the family of IFD curves for your catchment. Use the 2016 IFD and the latitude and longitude stated in the figures (for your catchment) to generate IFD information for your site. Use 1% AEP 9-hr storm for further analysis. You will need to include both the IFD table and IFD curves in your report. Use the ARR Data Hub web site (https://data.arr-software.org/) to generate total rainfall hyetograph for the storm generated in the above step. You will need to include the total rainfall hyetograph, both table and histogram, in your report. Extract the initial and constant loss values from the ARR Data Hub web site. Make necessary adjustments and construct the rainfall excess hyetograph. You will need to explain how