The following table presents a historical series of maximum annual rainfall in a hydrographic basin. Year máx Rainfall. (mm) 1990 1991 1992 1993 1994 1995 1996 1997 1998 120 150 110 78 75 65 125 62 232 1999 123 If the rainfall follows the trend of that sample, using the Gumbel distribution, calculate the return time of rainfall greater than or equal to 123 mm.

Structural Analysis
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Author:KASSIMALI, Aslam.
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Chapter2: Loads On Structures
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Q. 7

 

The following table presents a historical series
of maximum annual rainfall in a hydrographic
basin.
Year
máx
Rainfall.
(mm)
1990 1991 1992 1993
120
150 110
78
1994 1995 1996 1997
75
65
125
62
1998 1999
232
123
If the rainfall follows the trend of that sample,
using the Gumbel distribution, calculate the
return time of rainfall greater than or equal to
123 mm.
Transcribed Image Text:The following table presents a historical series of maximum annual rainfall in a hydrographic basin. Year máx Rainfall. (mm) 1990 1991 1992 1993 120 150 110 78 1994 1995 1996 1997 75 65 125 62 1998 1999 232 123 If the rainfall follows the trend of that sample, using the Gumbel distribution, calculate the return time of rainfall greater than or equal to 123 mm.
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