Unit 3 Sculpting Earth's Topography_ Lab Practical on Flash Flooding (2 points)_ GPH 111_ Intro to P

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Geography

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Apr 3, 2024

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2/24/24, 6:37 PM Unit 3 Sculpting Earth's Topography: Lab Practical on Flash Flooding (2 points): GPH 111: Intro to Physical Geography (2024 … https://canvas.asu.edu/courses/172892/quizzes/1298473 1/4 Unit 3 Sculpting Earth's Topography: Lab Practical on Flash Flooding (2 points) Due No due date Points 2 Questions 4 Time Limit None Instructions Attempt History This lab practical relates to the lecture on " In or Out (https://www.youtube.com/watch?v=1Csgc6adNaE%20https://www.youtube.com/watch? v=wj7WnkgjhM0%20https://www.youtube.com/watch?v=MChe0ltPdzQ) (https://www.youtube.com/watch?v=1Csgc6adNaE%20https://www.youtube.com/watch? v=wj7WnkgjhM0%20https://www.youtube.com/watch?v=MChe0ltPdzQ) where this video just shows an example of a flash flood. They key is whether precipitation sinks into the ground or runs off. In particular, this question deals with the issue of materials with a low infiltration capacity (see slides 14, 17 and 19). Flash flooding occurs when the surrounding drainage basin has a low infiltration capacity. This means that water can be shed quickly into the channel. Flash flooding tends to happen more often in deserts and cities, but it can happen in any climate/vegetation with enough rainfall. Certainly, the most important point of this lab practical is to make you aware of just how fast waters can flood stream or even a normally dry desert wash. Sadly, there are lots of news stories about people who perished because they did not understand the basic science of flash flooding. Simply read the questions and select the best answer.
2/24/24, 6:37 PM Unit 3 Sculpting Earth's Topography: Lab Practical on Flash Flooding (2 points): GPH 111: Intro to Physical Geography (2024 … https://canvas.asu.edu/courses/172892/quizzes/1298473 2/4 Attempt Time Score LATEST Attempt 1 5 minutes 2 out of 2 Score for this quiz: 2 out of 2 Submitted Feb 24 at 6:37pm This attempt took 5 minutes. Question 1 0.5 / 0.5 pts 1920 f /sec Correct! 1920 ft /sec 1920 f /sec 1920 f /sec 16 ft x 15 ft x 8 ft/sec = 1920 ft /sec Question 2 0.5 / 0.5 pts This question relates to the lecture on fluvial processes-- whether precipitation sinks into the ground or runs off. In particular, this question deals with the issue of materials with a low infiltration capacity (see slide 11). For the question, you will need to watch a video about a flash flooding event captured in drone footage. https :// www . youtube .com/watch?v=1 Csgc 6 adNaE (https://www.youtube.com/watch?v=1Csgc6adNaE) (https://www.youtube.com/watch?v=1Csgc6adNaE) In the study of rivers, a very common indicator that physical geographers measure is discharge (Q). Discharge is the amount of water that moves past a given cross-section of a river per second. The measurement in the USA is cubic feet per second. The waterfall viewed in flooding has a width of approximately 16 feet across. The channel depth during flooding is approximately 8 feet deep, and the velocity is approximately 15 ft/second. What is the approximate discharge of the water as it flows down the waterfall? 2 3 2 2 3 Watch this video clip (https://www.youtube.com/watch?v=y50dmIKvGic) (https://www.youtube.com/watch?v=y50dmIKvGic)
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