Example 6. Given the ordinates of a 4-h unit hydrograph as below, derive the ordinates of a 12-h unit hydrograph for the same catchment. Time (h) 4 8 12 16 20 24 28 32 36 40 44 Ordinate of 4-h UH 0 20 80 130 150 130 90 52 27 15

Q: The daily streamflow data for Fall River, Massachusetts at a site having a drainage area of 650 km2…

A: Drainage area, The time and flow rate is tabulated below.Time (days)Flow (m3/s)Time (days)Flow…

Q: A 2-hour unit hydrograph can be approximated as trapezoidal as shown in figure. The unit hydrograph…

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Q: Given the inflow and outflow discharges: Time (h) Inflow (m³/s) Outflow (m³/s) 1 93 85 3 208 114 442…

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Q: Consider the watershed below, with 8 precipitation stations (A-H) and corresponding Thiesson…

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Q: The following hydrological information : N for proposed site for hydropowe in Athi River Bauin Table…

A: Use ripple diagram or cumulative mass curve to determine the active storage for the dam if Only 2/3…

Q: Q1/Separate the given hydrograph in to its components using method four, if the catchment area is…

A: Time(day)Direct runoff Discharge (m3/s112228318041900522006120072308100910010601120121513121410

Q: The following stream flow data was collected from a watershed of 280.35 acres. Plot the hydrograph…

A: Given:- The area of the watershed =  280.35 acres Discharge for a given time period is given To…

Q: Given the following 30-minute UH for a 1676-acre watershed, use the S-hydrograph method to derive a…

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Q: Given below are ordinates of hydrograph, separate the base flow from direct runoff flow by using the…

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Q: Three inches of runoff produced the hydrograph below. Find the unit hydrograph. What value goes in…

A: Using the concept of hydrography, we can write relation as- unit hydrograph at a particular…

Q: Determine the unit hydrograph for a basin area of 412.2 km2 using the rainfall and streamflow data…

A: Using constant slope method seperate base flow from the hydrograph :Baseflow =160m3sDirect runoff…

Q: 8. Route the inflow hydrograph in the following table through a river reach for which x = 0.2 and K…

A: given data k=2daystable is given with time and inflow dataFindroute of inflow htdrograph

Q: Find area precipitation by isohyetal method for a certain catchment area given the following data

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Q: Muskingum parameters of k and x

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Unit Hydrograph

Hydrology is the science which deals with the study of water on the earth’s surface. The word Hydrograph is derived from the word hydro which means water. Hydrograph is basically a graph in which the discharge is plotted against the time interval at a specific point in a river or other channel. In a hydrograph, the discharge is plotted along the y-axis and time interval is plotted along the x-axis. Hydrograph is used to estimate the runoff. The variations in discharges with the change in time is shown by a hydrograph. It was revealed that the total discharge at an outlet increases with time by a kinematic wave model.