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Kinetic energy of rainfall
Pála, Jan ; Petrů, Jan (advisor) ; Gregar, Jan (referee)
Water erosion is caused by the momentum of falling raindrops and is transferred into the soil surface causing soil loss throughout the world. Rainfall kinetic energy is an important component of determining erosivity of rain with subsequent determination of the average soil loss on land and is derived from the precipitation characteristics of rain. Organised overview of the precipitation characteristics and deriving of the kinetic energy from these characteristics along with deriving methods of the kinetic energy via the rainfall intensity is done in the first part of this work in the form of literature research.
The second part of this work is focused on the comparison of the selected existing relationships for deriving kinetic energy from rainfall intensity. Kinetic energy can be expressed by form of volume specific - KEmm or time specific form - KEtime, where the model values of rainfall intensity were put into the selected formulas. Chosen KE-I relationships were compared on the basis of climate categorisation and altitude of the locations where the equations originated. Discussion and conclusion of this work assesses suitability or inapplicability of the selected equations for climate of the Czech republic.
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