ABSTRACT
This chapter illustrates the use of the CES-AES methods through a series of practical examples involving stage-discharge, velocity, backwater and afflux prediction for a range of channel types (size, shape, cover). Generic guidance on the use of the CES-AES for different flood risk management activities is provided, with specific examples relating to availability of site information, vegetation maintenance and dredging. A series of ‘what-if’ scenarios is explored to demonstrate the sensitivity of the CES-AES outputs to changes in input data (roughness, slope, sinuosity). An approach for estimating roughness in mountain streams with boulders is presented.
The survey data for the examples are provided in Appendix 3.
