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This is Exercise 4.8.1 in Introduction to Physical Hydrology by Martin Hendriks.

The water level above flat terrain during an experiment with double ring infiltrometer is 20 mm. The saturated hydraulic conductivity of soil is 20 mm/h. The wetting front of soil suction is 60 mm. The initial soil moisture content is 20% and the effective porosity is 45%.

Calculate the infiltration rate and cumulative infiltration when wetting front is 20, 40, 80, 160, 320, 640 and 1280 mm below the soil surface. Why does the infiltration rate diminish with time?

The water level above flat terrain during an experiment with double ring infiltrometer is 20 mm. The saturated hydraulic conductivity of soil is 20 mm/h. The wetting front of soil suction is 60 mm. The initial soil moisture content is 20% and the effective porosity is 45%.

Calculate the infiltration rate and cumulative infiltration when wetting front is 20, 40, 80, 160, 320, 640 and 1280 mm below the soil surface. Why does the infiltration rate diminish with time?

This is Exercise 4.8.1 in Introduction to Physical Hydrology by Martin Hendriks.

The water level above flat terrain during an experiment with double ring infiltrometer is 20 mm. The saturated hydraulic conductivity of soil is 20 mm/h. The wetting front of soil suction is 60 mm. The initial soil moisture content is 20% and the effective porosity is 45%.

Calculate the infiltration rate and cumulative infiltration when wetting front is 20, 40, 80, 160, 320, 640 and 1280 mm below the soil surface. Why does the infiltration rate diminish with time?

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How to calculate the infiltration rate?

theThe water level above the flat terrain during an experiment with double ring infiltrometer is 20mm20 mm. The saturated hydraulic conductivity of soil is 20mm20 mm/h. The wetting front of soil suction is 60mm60 mm. The initial soil moisture content is 20% and the effective porosity is 45%. 

Calculate the infiltration rate and cumulative infiltration when wetting front is 20, 40, 80, 160, 320, 640 and 1280mm1280 mm below the soil surface. Why does the infiltration rate diminishesdiminish with time?

calculate the infiltration rate

the water level above the flat terrain during an experiment with double ring infiltrometer is 20mm. The saturated hydraulic conductivity of soil is 20mm/h. The wetting front of soil suction is 60mm. The initial soil moisture content is 20% and the effective porosity is 45%. Calculate the infiltration rate and cumulative infiltration when wetting front is 20, 40, 80, 160, 320, 640 and 1280mm below the soil surface. Why infiltration rate diminishes with time?

How to calculate the infiltration rate?

The water level above flat terrain during an experiment with double ring infiltrometer is 20 mm. The saturated hydraulic conductivity of soil is 20 mm/h. The wetting front of soil suction is 60 mm. The initial soil moisture content is 20% and the effective porosity is 45%. 

Calculate the infiltration rate and cumulative infiltration when wetting front is 20, 40, 80, 160, 320, 640 and 1280 mm below the soil surface. Why does the infiltration rate diminish with time?

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calculate the infiltration rate

the water level above the flat terrain during an experiment with double ring infiltrometer is 20mm. The saturated hydraulic conductivity of soil is 20mm/h. The wetting front of soil suction is 60mm. The initial soil moisture content is 20% and the effective porosity is 45%. Calculate the infiltration rate and cumulative infiltration when wetting front is 20, 40, 80, 160, 320, 640 and 1280mm below the soil surface. Why infiltration rate diminishes with time?