Discuss the hydrologic cycle in terms of water on land areas (that is, the source of land-area surface and subsurface water, movement patterns, and change of location).

The water balance is defined by the general hydrologic equation, which is basically a statement of the law of conservation of mass applied to the hydrologic cycle. In its simplest form, this equation reads I = O + ΔS, where I is total inflow, O is total outflow and ΔS is change in storage. A catchment area of 140 km^2 received 120 cm of rainfall a year. At the outlet of the catchment the flow in the stream draining the catchment was found to have an average rate of 2 m^3/s for 3 months, 3 m^3/s for 6 months and 5 m^3/s for 3 months. What would be the amount of water not available to runoff (for the year) due to the combined effect of infiltration, evaporation and transpiration?

Lake Superior, the largest of the Great Lakes of North America, is also the world's largest freshwater lake by surface area (~ 82,100 km²), and the third largest freshwater lake by volume (~ 12,100 km³). The monthly average precipitation in 2018 in the lake area was 2.69 inches. According to the data provided by USGS water stations, the total flow rate in all the incoming streams was found to be 356,747 ft³/s (cubic feet per second). At the same time, the lake discharges 717,258 ft³/s to its surrounding water bodies. The monthly average evaporation was 18.7 mm. The groundwater inflow was 783.33 km³ less than the groundwater outflow in this year. How would the water level in this lake change in the year of 2018? O Increase by 12.87 m. O Decrease by 12.87 m. O Decrease by 10.56 m. O Increase by 10.56 m.

Water flows at the rate of 182 L/s in a 300 mm diameter pipeline connecting two reservoirs. If the pipe length is 845 m and using f = 0.021, what is the difference in water surface elevation between two reservoirs?