CIV E 445 - APPLIED HYDROLOGY SPRING 2014 - MIDTERM 2 - SOLUTION

PROBLEM 2: ESSAY QUESTIONS

1. 1 sq mi.

2. Gilbert White, a professor of geography.

3. β = 1.667 = 5/3.

4. S_o ≥ 0.01, or 1%.

5. The four variables (or parameters) of the runoff curve number method are:
   
   
   1. Hydrologic soil group: A, B, C, D.

   2. Land use and treatment class: agricultural, urban, range, forest.

   3. Ground surface condition: poor, fair, good

   4. Antecedent Moisture Condition: I, II, III.

6. PRF = 484.

7. Sherman; he was using large basins, from 1300 to 8000 sq. km.

8. The NRCS Type II storm, which covers the internal continental U.S., excluding the Eastern seaboard, the coast of the Gulf of Mexico, and the Pacific Coast.

   

   

9. According to the Gumbel method, the return period of the mean annual flood is 2.33 years.

10. The correlation coefficient for this case would be zero.