Determine the average annual rainfall overt the watershed. ATTACH YOUR SOLUTION: There are 10 raingauge stations available to calculate the rainfall characteristics of a catchment whose shape can be approximately described by straight lines joining the following coordinates (distances in kilometres): (30, 0), (80, 10), (110, 30), (140, 90), (130, 115), (40, 110), (15, 60). Coordinates of the raingauge stations and the annual rainfall recorded in them in the year 1981 are given below. ... Station 1 3 4 5 Co-ordinates (0, 40) (50, 0) (140, 30) (140, 80) (90, 140) Annual Rainfall (cm) 132 136 93 81 85 Station 6 7 8 9 10 Co-ordinates (0, 80) (40, 50) (90, 30) (90, 90) (40, 80) Annual Rainfall (cm) 124 156 128 102 128 (А) 139 cm (в) 130 сm 138 cm D) 135 cm

Determine the average annual rainfall overt the watershed. ATTACH YOUR SOLUTION: There are 10 raingauge stations available to calculate the rainfall characteristics of a catchment whose shape can be approximately described by straight lines joining the following coordinates (distances in kilometres): (30, 0), (80, 10), (110, 30), (140, 90), (130, 115), (40, 110), (15, 60). Coordinates of the raingauge stations and the annual rainfall recorded in them in the year 1981 are given below. ... Station 1 3 4 5 Co-ordinates (0, 40) (50, 0) (140, 30) (140, 80) (90, 140) Annual Rainfall (cm) 132 136 93 81 85 Station 6 7 8 9 10 Co-ordinates (0, 80) (40, 50) (90, 30) (90, 90) (40, 80) Annual Rainfall (cm) 124 156 128 102 128 (А) 139 cm (в) 130 сm 138 cm D) 135 cm

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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Determine the average annual rainfall overt the watershed. ATTACH YOUR SOLUTION: There are 10 raingauge stations available to calculate the rainfall characteristics of a catchment whose shape can be approximately described by straight lines joining the following coordinates (distances in kilometres): (30, 0), (80, 10), (110, 30), (140, 90), (130, 115), (40, 110), (15, 60). Coordinates of the raingauge stations and the annual rainfall recorded in them in the year 1981 are given below. Station 1 2 3 Co-ordinates (0, 40) (50, 0) (140, 30) (140, 80) (90, 140) Annual Rainfall (cm) 132 136 93 81 85 Station 7 8. 9. 10 Co-ordinates (0, 80) (40, 50) (90, 30) (90, 90) (40, 80) Annual Rainfall (cm) 124 156 128 102 128 A 139 cm B 130 cm 138 cm D) 135 cm
Determine the average annual rainfall overt the watershed. ATTACH YOUR SOLUTION: There are 10 raingauge stations available to calculate the rainfall characteristics of a catchment whose shape can be approximately described by straight lines joining the following coordinates (distances in kilometres): (30, 0), (80, 10), (110, 30), (140, 90), (130, 115), (40, 110), (15, 60). Coordinates of the raingauge stations and the annual rainfall recorded in them in the year 1981 are given below. Station 1 2 3 4 5 Co-ordinates (0, 40) (50, 0) (140, 30) (140, 80) (90, 140) Annual Rainfall (cm) 132 136 93 81 85 Station 6 7 8 9 10 Co-ordinates (0, 80) (40, 50) (90, 30) (90, 90) (40, 80) Annual Rainfall (cm) 124 156 128 102 128 A 139 cm B 130 cm c) 138 cm D 135 cm
Determine the average annual rainfall overt the watershed. ATTACH YOUR SOLUTION: There are 10 raingauge stations available to calculate the rainfall characteristics of a catchment whose shape can be approximately described by straight lines joining the following coordinates (distances in kilometres): (30, 0), (80, 10), (110, 30), (140, 90), (130, 115), (40, 110), (15, 60). Coordinates of the raingauge stations and the annual rainfall recorded in them in the year 1981 are given below. Station 1 2 4 5 Co-ordinates (0, 40) (50, 0) (140, 30) (140, 80) (90, 140) Annual Rainfall (cm) 132 136 93 81 85 Station 7 8 9. 10 Co-ordinates (0, 80) (40, 50) (90, 30) (90, 90) (40, 80) Annual Rainfall (cm) 124 156 128 102 128
Hydrology Study Questions 1. For the watershed in the Figure 1, using mean annual precipitations in Table 1, Tablel : Annual precipitations stations A B C D G H. J K precipitation (mm/year) 130 120 110 120 110 100 135 120 105 95 85 140 135 130 115 80 a) calculate average rainfall over watershed (via arithmetic mean)
A small watershed has four rain gauging stations. During a particularstorm event, these four rain gauging stations W, X, Y and Z recorded 28.4mm,24.9mm, 31.6mm and 29.8mm of precipitations respectively. As shown in thefigure, segment formed by connecting stations W & Z is the perpendicularbisector of the segment formed from stations X & Y and vice versa. Determinethe areal average precipitation for this watershed using the (i) Thiessen Polygon Method
A small watershed has four rain gauging stations. During a particularstorm event, these four rain gauging stations W, X, Y and Z recorded 28.4mm,24.9mm, 31.6mm and 29.8mm of precipitations respectively. As shown in thefigure, segment formed by connecting stations W & Z is the perpendicularbisector of the segment formed from stations X & Y and vice versa. Determinethe areal average precipitation for this watershed using the (i) arithmetic meanmethod and (ii) Thiessen Polygon Method
Q..What is Unit Hydrograph? Discuss Unit Hydrograph method of estimating maximum Probable Discharge.?
A-One of four monthly reading rain gages on a catchment area develops a fault in a month when the other three gages record, respectively (37, 43, 51)mm. If the average annual precipitation of these three gages are (726, 752, 840) mm, respectively and (694mm) of the broken gage. Estimate the missing monthly precipitation at the later station. B-On a certain river, the following data obtained by stream gage: Water stage(m) Flow rate(cumecs) Main staff Auxiliary staff 122 121.5 400 122 120.5 680 Estimate the flow rate when the main staff read (122m) and the auxiliary staff read (121.1m)? C-The following table represents the relation between the recorded discharges and the water levels. Estimate the following relation and find Q when H=15m. Q=a (H-2) b 10 20 40 100 Q(m³/s) H(m) 5 7 9 10
Q3) A river basin contains 6 rainfall stations with the annual data given in the table below. How many rainfall stations should be added to the basin to reach an error percent of 8%? Station A B F Annual Rainfall 230 400 301 268 196 351 depth (mm)
A watershed has five non-recording raingauges, installed in its area. The amount of rainfalf recorded for one of the years is given below: Raingauge stations Annual rainfall (cm) I 100 11 120 ||| 190 IV 95 V 125 Find the required optimum number of non-recording and recording raingauges for this watershed. Assume an error of 10% in the estimation of mean rainfall.
The shape of the drainage basin can be approximated by a polygon, whose vertices are located at the following coordinates: (5, 5), (-5, 5), (-5,-5), (0.-10), and (5,-5). The rainfall amounts of a storm were recorded by a number of rain gages situated within and nearby the basin as follows: All coordinates are expressed in kilometers. Determine the average rainfall on the basin by (a) arithmetic-mean method, (b) the Thiessen method, and (c) the isohyetalmethod.
Problem 4: Use the following table to determine the areal average rainfall using (1) Arithmetic-mean method Area Rainfall represented by station (mi?) Station depth (in) 3.1 4.2 4.5 5.1 5.5 3.5 3.2 5.5 4.3 4.8 m4534 ABCDE