[CUSTOM SOLUTION] Determining Flood Risk

a. In the third column, rank this data by year from the largest amount (rank of 1) to the smallest (rank of 9).b. In the fourth column, calculate the probability, in percent, of the flood recurring using the formula: rank/( n + 1 ) × 100 ; where n = the number of years with available datac. In column five, rank the recurrence intervals. This is determined by the following equation: RI = (N + 1)/M Where: RI = the recurrence interval N is the number of years the floods are on record M is the rank of the flooding event (largest flood M = 1) Because there are nine years of data, this calculation becomes 9 + 1, divided by the rank number you assignedAnalyze and Conclude 3. In your completed data table, how is the recurrence interval related to the rank andprobability of each year’s maximum discharge? (3 pts)4. Based on your answer to question 3, what maximum discharge might residents along the Big Thompson River typically expect? Explain. (3 pts)5. Does knowing the recurrence interval enable you to predict floods on the Big Thompson River during the next nine-year period? Explain why or why not. (3 pts)6. In many areas of the world, accurate stream recurrence interval data now extend over one century. After a record (rank 1 flood) in these areas, the media often refer to it as a “once in a century flood,” or a “100-year flood.” In your job as a watershed manager, does this mean that prospective home and business owners are safe from another event of that magnitude for more than the average human lifetime? Explain. (3 pts)7. Looking at Figure 3 on the page 6, describe the difference in flow characteristics discussed in Section 10.5 (in your text) for stream water flowing in the middle of the canyon and the same water as it flows out of the mountains and across the Great Plains just below the Rocky Mountains. (3 pts)Copyright © 2017 Pearson Education, Inc.GEOG 102 Week 8 Lab 58. Hypothesize how and why the following landscape changes might influence future floods in the lower sections of the Big Thompson River watershed: (3 pts) a. More urbanization b. A large forest fire c. A series of upstream damsPart B Part B of this lab is online and continues to the impact of rivers on the landscape. Log in to Canvas to complete the online portion of this lab in the MyLab Mastering section.

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