5.1.8 Direct Runoff
5.1.8 Direct Runoff
Direct runoff is water not absorbed by soil or that does not soak into the soil but flows into surface waters. Geology, slope, and topography are the most controlling factors of runoff and area, actual evapotranspiration/ rainfall and vegetation cover least control runoff. In general, low rainfall, high evapotranspiration, gentle slope, very permeable volcanic falls and disappearing drainage pattern can confirm the lowest runoff.
Direct runoff is that part of the precipitation, snow melt, or irrigation water that appears in uncontrolled surface streams, rivers, drains or sewers. And it consists of precipitation that neither evaporates, transpires nor penetrates the surface to become groundwater. It occurs when the rate of
Direct runoff is water not absorbed by soil or that does not soak into the soil but flows into surface waters. Geology, slope, and topography are the most controlling factors of runoff and area, actual evapotranspiration/ rainfall and vegetation cover least control runoff. In general, low rainfall, high evapotranspiration, gentle slope, very permeable volcanic falls and disappearing drainage pattern can confirm the lowest runoff.
Direct runoff is that part of the precipitation, snow melt, or irrigation water that appears in uncontrolled surface streams, rivers, drains or sewers. And it consists of precipitation that neither evaporates, transpires nor penetrates the surface to become groundwater. It occurs when the rate of