start:hype_model_description:processes_above_ground
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start:hype_model_description:processes_above_ground [2020/04/30 07:54] cpers [Atmospheric deposition to rivers and lakes] |
start:hype_model_description:processes_above_ground [2020/04/30 10:56] cpers [Table] |
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| The actual evaporation may also depend on soil temperature (//soiltemp//). It is then reduced for temperatures above land use parameter //ttrig// and depend on two other land use parameters (//tredA//, //tredB//) as well (Figure 3). | The actual evaporation may also depend on soil temperature (//soiltemp//). It is then reduced for temperatures above land use parameter //ttrig// and depend on two other land use parameters (//tredA//, //tredB//) as well (Figure 3). | ||
| - | |{{:start:hype_model_description:pet_soiltemp.png?400|}}| | + | | {{:start:hype_model_description:pet_soiltemp.png?400}} | |
| - | |Figure 3 Soil temperature factor for reduction of soil evapotranspiration. Parameter values: //ttrip//=1, //tredA//=0.5, //tredB//=1.| | + | | Figure 3 Soil temperature factor for reduction of soil evapotranspiration. \\ Parameter values: //ttrip//=1, //tredA//=0.5, //tredB//=1. | |
| The soil temperature evapotranspiration reduction is calculated as: | The soil temperature evapotranspiration reduction is calculated as: | ||
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| The actual soil evaporation is set to zero for temperatures below the threshold temperature and for negative potential evaporation estimates (condensation). It may also be affected by frozen soil model, which then limit evaporation to the liquid part of soil water. | The actual soil evaporation is set to zero for temperatures below the threshold temperature and for negative potential evaporation estimates (condensation). It may also be affected by frozen soil model, which then limit evaporation to the liquid part of soil water. | ||
| - | A river with an area (i.e. is a class), flooded floodplains and lakes are assumed to evaporate at the potential rate, when the air temperature is above the threshold temperature (//ttmp//). Evaporation is limited by the water body's volume. | + | A river with an area (i.e. has a class), flooded floodplains and lakes are assumed to evaporate at the potential rate, when the air temperature is above the threshold temperature (//ttmp//). Evaporation is limited by the water body's volume. |
start/hype_model_description/processes_above_ground.txt · Last modified: 2024/02/21 08:54 by cpers
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