CIVE 445 - ENGINEERING HYDROLOGY

SPRING 2011 - MIDTERM 1 - SOLUTION

PROBLEM 1

A = 185 km2

P = 625 mm/yr

Q = 1.2 m3/s


Total volume of precipitation VP:

VP = 185 km2 × 625 mm/y × (1000 m/km)2 / (1000 mm/m) = 115,625,000 m3/y

Total volume of runoff VR:

VR = 1.2 m3/s × 86400 s/d × 365 d/y = 37,843,200 m3/y

Abstracted percentage:

[(VP - VR) / VP] × 100 = 67.27%   ANSWER.

Problem 2

 
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