ESSE 1410 Lecture Notes - Dry Creek, Louisiana, Marine Ecosystem, 100-Year Flood

• School: York University
• Department: Earth, Space Science and Engineering
• Course: ESSE 1410
• Professor: all

Document Summary

Student number: : flood frequency information can be determined from knowledge of the peak discharge (highest discharge) in any given year provided enough years of information has been collected. This allows one to relate the expected recurrence interval for a given discharge, and determine the probability that a flood of a given discharge will occur in any given year. The recurrence interval for a given discharge can be calculated by first ranking the discharges: in the table below for dry creek, louisiana, fill in the rank column. To do this, enter a 1 for the maximum discharge that has occurred during the 20 years of available data. The second highest discharge will be given a rank of 2, etc. with the lowest discharge given a value of 20. (2 point) 08-feb-08 1120: after you have filled in the rank column, you can now calculate the recurrence interval for each peak discharge.