Class Notes (1,100,000)
CA (650,000)
York (40,000)
ESSE (70)
all (10)


Earth, Space Science and Engineering
Course Code
ESSE 1410

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Rank, m
Interval, T
13-Mar-89 750
06-Mar-90 1250
28-Feb-91 1410
04-Mar-92 2890
22-Mar-93 1850
03-Mar-94 800
12-Mar-95 1000
01-Feb-96 692
04-Apr-97 1350
02-May-98 1200
16-Mar-99 850
06-Jul-00 2400
21-Feb-01 890
30-Jan-02 1480
16-Mar-03 1500
21-Feb-04 1300
12-May-05 1700
08-Apr-06 2200
01-Mar-07 1830
08-Feb-08 1120
EATS 1410
Winter term Assignment 2
Due on Monday March 21, 2011
NAME: ……………………
Student number: ………………………
1. 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
a. 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)
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