Flood damage control Aim To identify a variety

Flood damage control Aim: To identify a variety of different flood defence schemes. To use GIS to evaluate flood defence schemes.

Starter • Suggest different ways in which people can respond to the threat of flood events. Flood response

Permanent Flood wall Temporary Flood wall Embankment

Bypass drain Storage basin Flood gate

Flood defence schemes are judged by various criteria: • Likely benefits (lives saved, damage spared) • Total cost • Environmental impact • Degree of local support etc.

You are a project analyst for a flood response organisation. Your job is to evaluate the suitability of 6 proposed flood defence schemes. You will judge each scheme using the following criteria: Likely benefits Total costs Environmental impacts Local support.

Your ultimate aim is to get the highest score possible by choosing the best combination of schemes.

• http: //mapzone. ordnancesurvey. co. uk/map zone/giszone/english/gismissions/activity 1. htm • Follow the onscreen instructions, using your activity sheet to help you. • Complete the activity sheet as you work your way through.

Homework • Complete the Flood damage control sheet.

Plenary • Which was the best combination of schemes? • Which scheme was best overall? • Why was it best? • What was the worst combination of schemes? • Which scheme was worst overall? • Whay was it the worst?