GLG 112 1st Edition Lecture 35Outline of Last LectureI. Introduction to FloodingA. TermsB. Factors that influence floodingOutline of Current Lecture 1. Natural vs. man madeII. Types of FloodsA. Flash Floods1. What is it?2. Where?3. Why and how?4. Examples Current LectureNatural factors that influence flooding- Precipitation- Temperature (snow melt)- Channel size - Fires - Infiltration vs. runof- Ground composition- Vegetation- Topography- Preexisting soil moistureMan made factors that influence flooding- Dams - LeveesThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.- Urbanization (concrete creates more runof)Flash FloodsThey are sudden floods that happen when the water level rises very fast. They occur in canyons/steep valleys, small channels, near headwaters, and in arid environments.These happen when there is a lot of rain in a short amount of time. *the number one cause of death from these are people who try to drive through floodwaters*Examples:a. Big Thompson canyon (1979 and 2013)b. Australia
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