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1. The rainfall hyetograph is shown in Figure 4.16 and is listed in Table 4.18. It is subject to a depression storage loss of 0.15 cm and Horton infiltration with parameters fo = 0.45 cm/h, f = 0.05 cm/h, and k = 1 h. Calculate the hyetograph of excess rainfall. TABLE 4.17 Measurements of Evaporation for 1958–1962 and 1968–1972 for Problem 6 U.K. tank U.S. Class A pan U.S. Class A pan Year Year 1958 351 491 1968 621 1959 536 713 1969 581 1960 502 653 1970 687 1961 437 586 1971 624 1962 486 612 1972 568 0.9- 0.8 0.7 Rainfall (L

1. The rainfall hyetograph is shown in Figure 4.16 and is listed in Table 4.18. It is subject to a depression storage loss of 0.15 cm and Horton infiltration with parameters fo = 0.45 cm/h, f = 0.05 cm/h, and k = 1 h. Calculate the hyetograph of excess rainfall. TABLE 4.17 Measurements of Evaporation for 1958–1962 and 1968–1972 for Problem 6 U.K. tank U.S. Class A pan U.S. Class A pan Year Year 1958 351 491 1968 621 1959 536 713 1969 581 1960 502 653 1970 687 1961 437 586 1971 624 1962 486 612 1972 568 0.9- 0.8 0.7 Rainfall (L

Structural Analysis
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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7. The rainfall hyetograph is shown in Figure 4.16 and is listed in Table 4.18. It is subject to a depression storage loss of 0.15 cm and Horton infiltration with parameters fo = 0.45 cm/h, f= 0.05 cm/h, and k = 1 h. Calculate the hyetograph of excess rainfall. TABLE 4.17 Measurements of Evaporation for 1958–1962 and 1968–1972 for Problem 6 Year U.K. tank U.S. Class A pan U.S. Class A pan Year 1958 351 491 1968 621 1959 536 713 1969 581 1960 502 653 1970 687 1961 437 586 1971 624 1962 486 612 1972 568 0.9 0.8 0.7 Rainfall 0.6 E 0.5 0.4 0.3 0.2 0.1 0.0 20 40 60 80 Time (min) FIGURE 4.16 Rainfall hyetograph of Problem 7. TABLE 4.18 Rainfall Hyetograph of Problem 7 Time Interval (min) Rainfall (cm/hr) 0-10 0.30 10-20 0.80 20-30 0.45 30-40 0.55 40-50 0.25 50-60 0.40 60-70 0.45 70-80 0.30 80-90 0.00 Rate (cm/h)
Transcribed Image Text:7. The rainfall hyetograph is shown in Figure 4.16 and is listed in Table 4.18. It is subject to a depression storage loss of 0.15 cm and Horton infiltration with parameters fo = 0.45 cm/h, f= 0.05 cm/h, and k = 1 h. Calculate the hyetograph of excess rainfall. TABLE 4.17 Measurements of Evaporation for 1958–1962 and 1968–1972 for Problem 6 Year U.K. tank U.S. Class A pan U.S. Class A pan Year 1958 351 491 1968 621 1959 536 713 1969 581 1960 502 653 1970 687 1961 437 586 1971 624 1962 486 612 1972 568 0.9 0.8 0.7 Rainfall 0.6 E 0.5 0.4 0.3 0.2 0.1 0.0 20 40 60 80 Time (min) FIGURE 4.16 Rainfall hyetograph of Problem 7. TABLE 4.18 Rainfall Hyetograph of Problem 7 Time Interval (min) Rainfall (cm/hr) 0-10 0.30 10-20 0.80 20-30 0.45 30-40 0.55 40-50 0.25 50-60 0.40 60-70 0.45 70-80 0.30 80-90 0.00 Rate (cm/h)
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