THE ENERGY OF RAINDROPS |
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| Authors: | cand mag K Høgh-Schmidt cand mag S Brogaard |
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| Institution: | 1. Physics Laboratory , Royal Veterinary and Agricultural University , Copenhagen , Denmark;2. Physics Laboratory , Royal Veterinary and Agricultural University , Copenhagen |
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| Abstract: | Høgh-Schmidt, K. & Brogaard, S.: The energy of raindrops, Geografisk Tidsskrift: 24–29. København juni 1, 1976. In soil erosion the precipitation energy is one of the main factors. It is generally expressed as the gravitional energy of the drops, but normally these also have a horizontal movement, i. e. an energy in the wind direction. By means of a simple mathematical model, the velocity of a drop can be calculated approximately and its dependence on wind velocity and wind profile is discussed. When the size distribution of the drops is known, the total precipitation energy can be determined, and it is demonstrated that the total energy is a function of the wind velocity and generally also of the shape of the wind profile. |
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