1. Find area precipitation by isohyetal method for a certain catchment area given the following data + A₂ Isohyets, cm P₁ 6.8 6 24 5 4 PS 3 22 Pr. 1.5 P = 0 Time, min Rainfall, cm Area enclosed within catchment boundary, km 0 0 + 602 2. A catchment has six rain gauge stations. In a year, the annual rainfall recorded by the gauges are as follows: Station B D F A C 86.3 108.9 154.2 78.3 Rainfall, mm 102.7 For a 10% error in the estimation of mean rainfall, calculate the optimum number of stations in the catchment 6816 3. From the precipitation data given, estimate cumulative rainfall and rainfall intensity. Time, min Rainfall, cm 10 0.18 100 90 3.18 1.65 20 97 213 410 602 633 +00 2+15 20 0.21 30 0.26 1975 120 110 0.81 (Pit P=A₁ (P₁+f 2 Atotal = 1975 6+5 2 E 93.1 140 130 0.52 0.26 0.42 + (33 40 50 0.32 0.37 +97 Atotal 2 60 70 80 0.43 0.64 1.14 150 160 0.36 0.28 544 [1]. P₂1 Ps 2 +213 170 0.19 413 2 180 0.17 +4410 342 2
1. Find area precipitation by isohyetal method for a certain catchment area given the following data + A₂ Isohyets, cm P₁ 6.8 6 24 5 4 PS 3 22 Pr. 1.5 P = 0 Time, min Rainfall, cm Area enclosed within catchment boundary, km 0 0 + 602 2. A catchment has six rain gauge stations. In a year, the annual rainfall recorded by the gauges are as follows: Station B D F A C 86.3 108.9 154.2 78.3 Rainfall, mm 102.7 For a 10% error in the estimation of mean rainfall, calculate the optimum number of stations in the catchment 6816 3. From the precipitation data given, estimate cumulative rainfall and rainfall intensity. Time, min Rainfall, cm 10 0.18 100 90 3.18 1.65 20 97 213 410 602 633 +00 2+15 20 0.21 30 0.26 1975 120 110 0.81 (Pit P=A₁ (P₁+f 2 Atotal = 1975 6+5 2 E 93.1 140 130 0.52 0.26 0.42 + (33 40 50 0.32 0.37 +97 Atotal 2 60 70 80 0.43 0.64 1.14 150 160 0.36 0.28 544 [1]. P₂1 Ps 2 +213 170 0.19 413 2 180 0.17 +4410 342 2
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
Expert Solution
Step 1
Given data in question
Isohytes values in cm
Area enclosed in km2
To find out
Mean area precipitation using Isohyetal method
Step by step
Solved in 3 steps with 1 images
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Recommended textbooks for you
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning