Use the Weibull and Hazen methods and log-normal graphing papers (provide below) to determine the expected annual rainfall for return periods of 2, 20, and 100 years for the data given the table below. Which plotting formula worked the best? TABLE 2.12Rainfall Data for Problem 2.13YearRainfall (mm)YearRainfall (mm)199428.2200431.5199531.2200542.5199634.4200639.5199739.0200732.5199832.3200820.5199923.6200927.2200025.4201041.2200128.0201128.0200227.3201228.1200335.1201333,4 100.0 10. 99.9999.9 99.899 9895 9080 702 1 0.560 50 40 30 20100.2 0.1 0.050.01109.8..87.6.43..310.01.9.8.86..65..54.3.3.21:0 1.0.010.05 0.1 0.20.5 12510203040506070809095989999.8 99.999.992.

year rainfall increasing order 1994 28.2 20.5 1995 31.2 23.6 1996 34.4 25.4 1997 39.0 27.2…

Answered: Year Rainfall (mm) Year Rainfall (mm)…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Use the Weibull and Hazen methods and log-normal graphing papers (provide below) to determine the expected annual rainfall for return periods of 2, 20, and 100 years for the data given the table below. Which plotting formula worked the best?

TABLE 2.12
Rainfall Data for Problem 2.13
Year
Rainfall (mm)
Year
Rainfall (mm)
1994
28.2
2004
31.5
1995
31.2
2005
42.5
1996
34.4
2006
39.5
1997
39.0
2007
32.5
1998
32.3
2008
20.5
1999
23.6
2009
27.2
2000
25.4
2010
41.2
2001
28.0
2011
28.0
2002
27.3
2012
28.1
2003
35.1
2013
33,4

100.0 10. 99.99
99.9 99.8
99 98
95 90
80 70
2 1 0.5
60 50 40 30 20
10
0.2 0.1 0.05
0.01
10
9.
8.
.8
7.
6.
4
3.
.3
10.01.
9.
8.
8
6.
.6
5.
.5
4.
3.
3
.2
1:0 1.
0.01
0.05 0.1 0.2
0.5 1
2
5
10
20
30
40
50
60
70
80
90
95
98
99
99.8 99.9
99.99
2.

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