start:hype_model_description:hype_np_soil
Differences
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| Both sides previous revision Previous revision | Next revision Both sides next revision | ||
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start:hype_model_description:hype_np_soil [2018/04/09 09:10] cpers [Nutrient soil leakage from outer source] |
start:hype_model_description:hype_np_soil [2018/06/20 12:59] cpers [Soil erosion] |
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| <m> erodedSed = 1000 * (MobilisedRain + MobilisedSedSR) * transportfactor </m> | <m> erodedSed = 1000 * (MobilisedRain + MobilisedSedSR) * transportfactor </m> | ||
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| - | The alternative erosion model calculates eroded sediment (//erodedSed// (kg/km2)) based on precipitation (//prec//) and a number of model parameters. | + | The alternative erosion model calculates eroded sediment (//erodedSed// (kg/km2)) based on precipitation (//prec//) and a number of model parameters and subbasin input data. |
| <m> erodedSed = 1000. * ({slope / 5})^{erodslope} * erodluse * erodsoil * {EI/erodindex} * prec^{erodexp} </m> | <m> erodedSed = 1000. * ({slope / 5})^{erodslope} * erodluse * erodsoil * {EI/erodindex} * prec^{erodexp} </m> | ||
| - | The parameters //erodslope//, //erodexp// and //erodindex// are general. The parameters //erodluse// and //erodsoil// are land-use and soil type dependent. //slope// is the subbasins average slope, and //EI// its erosion index. | + | The parameters //erodslope//, //erodexp// and //erodindex// are general. The parameters //erodluse// and //erodsoil// are land-use and soil type dependent. Subbasin input is needed on //slope//, the subbasins average slope, and an erosion index, //EI//. |
| A selective process is affecting the soil erosion of phosphorus. Smaller and lighter particles are eroded easier than larger ones. The tiny particles contain more P per unit weight than the average particle of the soil. Therefore an enrichment factor (//enrichment//) is used. | A selective process is affecting the soil erosion of phosphorus. Smaller and lighter particles are eroded easier than larger ones. The tiny particles contain more P per unit weight than the average particle of the soil. Therefore an enrichment factor (//enrichment//) is used. | ||
start/hype_model_description/hype_np_soil.txt · Last modified: 2024/04/16 09:10 by cpers
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