2.6 Represent the annual rainfall data of station A given below as a bar chart with time inchronological order. If the annual rainfall less than 75% of long-term mean is takento signify meteorological drought, identify the drought years and suitably display thesame in the bar chart.Year1961 1962 1963 1964 1965 1966 1967 1968 1969 1970Annual rain 760 750 427 380 480 620 550 640624 500(mm)Year1971 1972 1973 1974 1975 1976 1977 1978 1979 1980Annual rain 400(mm)356700580520102525900600400

Given:- The annual rainfall data of station A is given The significant meteorological drought value…

Answered: 2.6 Represent the annual rainfall data…

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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Figure 2.2 shows a catchment with seven rain guage stations inside it and three stations outside. The rainfall recorded by each of these stations are indicated by the figure. Draw the figure to an enlarged scale and calculate the mean precipitation method by (a) Isohyetal method and by (b) Arithmetic-mean method.
Annual rainfall at a given location can be described by a lognormal distribution. The transformed mean in the log domain is 4.83 and log- transformed standard deviation is 0.149. Estimate the magnitude of the 50-year annual rainfall. O 146.0 O 125.21 O 180,14 None of the choices 170.72
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The precipitation heights recorded with a printed precipitation scale during successive time intervals during a rainstorm are given in the table below. Accordingly, plot the duration-intensity (connection) graph of this precipitation event.
Table Q4 shows the details of the storm hydrograph with the corresponding direct discharge. The given time interval is 3 hours between the readings. Q4 Table Q4 Excess rainfall (mm) 11 Time (hr) Direct discharge (m³/s) 3 70 28 230 9. 30 600 12 1400 15 2380 18 3300 21 4880 24 6320 27 3305 30 350 33 300 36 100 By using the convolution method, determine the unit hydrograph ordinates. (a) (b) Illustrate the unit hydrograph.
2. Given below are the rainfall data in station S with missing observations for more than three months. Rainfall data in stations A, B and C as index stations are also given. Reconstitute the annual total and the missing monthly values of rainfall in station S using the normal-ratio method and regression correlation analysis. Index Stations Station S A B C Month Total Normal Total Normal Total Normal Total Normal (2007) (15yrs) 15.4 (2007) (15yrs) 2.1 2.0 (2007) (15yrs) (2007) (15yrs) 2.0 5.9 22.1 January February 5.6 42.4 5.5 74.1 5.5 2.5 7.6 7.3 5.7 2.8 20.1 March 8.0 31.6 14.1 10.0 13.8 2.6 33.5 41.3 April Мay June 22.1 53.3 29.1 8.3 25.3 24.1 37.0 missing missing 430.5 293.6 127.7 127.4 208.4 189.2 141.5 152.9 490.7 524.0 474.2 263.3 550.1 273.9 241.7 277.7 239.8 July August September missing October 489.9 327.8 582.9 314.4 288.4 531.1 596.0 704.2 448.7 455.1 414.6 224.7 296.7 473.4 407.0 292.6 371.1 303.8 339.7 262.7 missing 195.0 88.5 82.0 68.6 205.0 240.1 248.4 November 54.8…
For the following precipitation data, compute the average precipitation by; The arithmetic mean average method Thiessen Polygon method
Rainfall depth over a watershed is monitored through six numbers of well distributed rain gauges. Gauged data are given below Rain gauge Number: Rainfall depth (mm): Area of Thiessen Polygon (× 104 m²):95 100 98 80 85 92 The Thiessen mean value (in mm, up to one decimal place) of the rainfall is 1 2 3 4 5 6 470465435525480510
14.
The annual precipitation at stations A, B, C and D are given below. In 1981, station D was permanently relocated to a new location. Determine the values of precipitation for the adjusted years by using a double mass curve
1) Rainfall data of 4 stations in the same region are given in Table. a) Estimate the missing data of the station Y by weighted arithmetic mean method b) Test the homogeneity of the data in station (Y) using the data of stations (X1, X2 and X3) with double mass curve method. Year X1 2010 811 2011 881 2012 941 2013 751 2014 741 2015 1021 2016 901 2017 1991 2018 1241 2019 1011 X2 691 771 811 691 671 891 801 1031 1151 931 X3 641 701 761 611 576 801 741 911 1001 821 200 250 300 600 ? 825 730 950 1040 800

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