In a given year, a catchment with an area of 200 km2 received 1300 mm of...

In a given year, a catchment with an area of 200 km2 received 1300 mm of rainfall. The average evaporative energy flux due to evapotranspiration was 45 Watts/m2. Assuming negligible change in soil and groundwater storage, and also negligible interception. Estimate the average rate for that year, for the river draining the catchment (in both mm/year and m3/s)

Solutions

Expert Solution

Solution is attatched in the image posted below:

Hope it helps.

Average evaporative energy flux means energy available per unit area per unit time to evaporate water.

Average signifies that condition of throughout the day and night both are considered.

With the help of relations we can calculate the evapotranspiration rate per second which is then used to calculate yearly evapotranspiration.

Rainfall- evapotranspiration will give river drainage value in mm/year.

To find value in m3/s volume is calculated by multiplying area with depth of water remains after evapotranspiration.

As all other losses are considered negligible.

Ally Wells answered 4 months ago

Next > < Previous

Related Solutions

In a given year, a catchment with an area of 200 km2 received 1300 mm of...

Population distribution : Population distribution of Japan is 334.66/km2 on an area of 377,930 km2. Japan...

Population distribution : Population distribution of Japan is 334.66/km2 on an area of 377,930 km2. Japan is politically divided into 8 regions and 47 prefectures. (all primary and secondary regions of high population density lie on the coast; one-third of the population resides in and around Tokyo on the central plain (Kanto Plain)) Hokkaido: 66.4 ppl/km2 Tōhoku: 130 ppl/km2 Kantō: 1300 ppl/km2 Chūbu: 300 ppl/km2 Kansai: 830 ppl/km2 Chūgoku: 240 ppl/km2 Shikoku: 220.3 ppl/km2 Kyūshū: 332.4 ppl/km2 Population Projections :...

Determine the 4-hour duration probable maximum precipitation (PMP) for a 60 km2 catchment with smooth terrain...

Determine the 4-hour duration probable maximum precipitation (PMP) for a 60 km2 catchment with smooth terrain centred on Stroud. Determine the temporal pattern for the storm? Present the temporal pattern as a bar graph of rainfall depths vs time over 30-minute intervals.

A 200-acre catchment area contains 50 acres paved surfaces (C = 0.8), 100 acres buildings (C...

A 200-acre catchment area contains 50 acres paved surfaces (C = 0.8), 100 acres buildings (C = 0.7), 40 acres open lawn space (C = 0.15). Determine the peak discharge Qp (cfs) by the Rational Method if the duration of the storm is 50 minutes. Assume 100-year return period storm. Use formulas/graphs from Houston City Manual.

The flow hydrograph ordinates observed in a basin with a precipitation area of 500 km2 for...

The flow hydrograph ordinates observed in a basin with a precipitation area of 500 km2 for a 3-hour showers are given in the table below. Assuming the base flow is constant and 10 m3/h; a) Calculate the total volume of flow as m3, which consists of precipitation. b) Calculate excess rainfall height and duration. c) Determine the unit hydrograph which is equal to the precipitation period of excess rainfall. (time is given a hour 10m3/h ) not false.. Time (h)...

The ordinates of rainfall mass curve of a storm over a basin of area 850 km2...

The ordinates of rainfall mass curve of a storm over a basin of area 850 km2 measured in mm at 1 hour intervals are 0, 10, 22, 30, 39, 45.5, 50, 55.5, 60, 64 and 68. If the infiltration during this storm can be represented by horton’s equation with fo=6.5 mm/hr, fc=1.5 mm/hr and k=0.15 /hr. Estimate the resulting runoff volume.

The time area method is often used to estimate catchment runoff process. In this method, the...

The time area method is often used to estimate catchment runoff process. In this method, the catchment of concern is split into several sub-areas where runoff generated from each sub-area is thought to take the same amount of time to travel to the outlet of the catchment. Suppose a catchment can be split into M sub-areas. For the i-th sub-area (i=1,2,…, M), the size of the area is Ai km2 and it takes i-th hours for the runoff generated to...

$100 is received at the beginning of year 1, $200 is receivedat the beginning of...

$100 is received at the beginning of year 1, $200 is received at the beginning of year 2, and $300 is received at the beginning of year 3. If these cash flows are invested at 12 percent, what will their future value be at the end of year 3?What is the present value of a $25,000 perpetuity be if the discount rate (required rate of return) is 14 percent? (HINT: Excel does not have a built-in formula for perpetuity. You...

QUESTION 1 The daily stream flow data for a particular catchment having an area of 6500...

QUESTION 1 The daily stream flow data for a particular catchment having an area of 6500 km2 are given in the table below. Separate the baseflow using Straight line method, Fixed base method, and recession Separation method. Calculate the total direct runoff for each method. Table Q1 Time Flows, Q (days) (m3/s) 1 1 600 2 1 550 3 5 000 4 10 300 5 8 600 6 6 500 7 5 000 8 3 800 9 2 800 10...

A small catchment has an area of 680 ha and consist of Type-C soil. The land...

A small catchment has an area of 680 ha and consist of Type-C soil. The land cover is 40% open space_good condition, 15% commercial and business area, 30% residential and 15% roads/paved area. Assuming normal moisture conditions, determine the volume of direct runoff from a design storm of total rainfall of 200 mm from this catchment. What would be value of runoff volumes if the past 5 day total rainfall were 10 mm and 70 mm, respectively, assuming growing season...

Subjects