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Rainfall Analysis and Storm Data Tasks

This document contains 17 problems related to analyzing rainfall data from rain gauges and stations. The problems involve tasks like plotting hyetographs and intensity-duration curves from storm data, determining depth-duration curves, plotting recurrence interval curves from annual rainfall data, and calculating dependable rainfall values and occurrence probabilities.

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Christian Garcia
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256 views4 pages

Rainfall Analysis and Storm Data Tasks

This document contains 17 problems related to analyzing rainfall data from rain gauges and stations. The problems involve tasks like plotting hyetographs and intensity-duration curves from storm data, determining depth-duration curves, plotting recurrence interval curves from annual rainfall data, and calculating dependable rainfall values and occurrence probabilities.

Uploaded by

Christian Garcia
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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PROBLEMS  

13. Following are the data of a storm as recorded in a self-recording rain gauge at a station:  

a.
b.
c. Plot the hyetograph of the storm.  
d. Plot the maximum intensity-duration curve of the storm.  
 
14. Prepare the maximum depth-duration curve for the 90-minute storm given below:  

 
15. The mass curve of rainfall in a storm of total duration 90 minutes is given below. (a)
Draw the hyetograph of the storm at 10 minutes time step. (b) Plot the maximum intensity-
duration curve for this storm. (c) Plot the maximum depth-duration curve for the storm.  

 
16. The record of annual rainfall at a place is available for 25 years. Plot the curve of
recurrence interval vs annual rainfall magnitude and by suitable interpolation estimate the
magnitude of rainfall at the station that would correspond to a recurrence interval of (a) 50 years,
and (b) 100 years.  
 
17. The annual rainfall values at a station P for a period of 20 years are as follows:  

Determine:  
a. The value of annual rainfall at P with a recurrence interval of 15 years.  
b. The probability of occurrence of an annual rainfall of magnitude 100 cm at station P.  
c. 75% dependable annual rainfall at the station. [Hint: If an event (rainfall magnitude in the
present case) occurs more than once, the rank m = number of times the event is equalled +
number of times it is exceeded.
7.2.8

7.2.12

7.2.14
7.12.17

  

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