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Ees416:Surface Hydrology Ii Question Paper

Ees416:Surface Hydrology Ii

Course:Surface Hydrology Ii

Institution: University Of Eldoret question papers

Exam Year:2014

Answer all questions in section A and any four questions in section B
Section A
1.Explain briefly how landcover/use affects runoff.(3marks)
2.State any three objectives of watershed management.(3marks)
3.Explain briefly how man influences the hydrological cycle.(3marks)
4.Explain briefly the importance of meteorological data in watershed management.(3marks)
5.A watershed has a length of 10000m and the heights of the outlet and ridge are 1950m and 2950m,respectively.Calculate the watershed slope in percent.(3marks)
6.Explain briefly any one flood mitigation measure.(3marks)
7.Explain briefly the role of infiltration in the hydrological cycle.(3marks)
8.Explain briefly what is meant by soil erosion.(3marks)
9.State and explain briefly what is meant by soil erosion.(3marks)
10.Give a brief description of gully erosion.(3marks)
SECTION B
11.Describe briefly any two methods of controlling water erosion.(10marks)
12.The table below shows the land cover and land use complex of a watershed and associated curve numbers for condition II.
Land cover and land use
A 225 (areakm2)70(curvenumber)
B 425 (areakm2)85(curvenumber)
C 275 (areakm2)80(curvenumber)
D 125 (areakm2)90(curvenumber)
Using the soil conservation service curve number method,estimate the direct runoff that would result from a storm rainfall of 30mm.(10marks)
13.Explain clearly the importance of river discharge and sediment yield data in hydrology.(10marks)
14.The annual rainfall(in mm) recorded at a rainfall station for a period of 10 years is given below:520,610,420,270,350,380,750,600,350and 550.Calculate the mean,standard deviation and coefficient of variation of the annual rainfall.(10marks)
15.a)Write the general water balance equation,explaining all terms.(10marks)
b)The drainage area of a watershed is 3650km2.If the mean annual runoff is determined to be 1825x10^6m3 and the average annual rainfall is 1.28m,estimate the evapotranspiration losses for the area.State any assumptions made.(5marks)
16.Explain clearly how remote sensing and GIS can be used in watershed management.(10marks)

Ees416:Surface Hydrology Ii Question Paper

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