start:hype_model_description:hype_routing
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| Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
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start:hype_model_description:hype_routing [2020/02/05 10:22] cpers [Basic assumptions] |
start:hype_model_description:hype_routing [2020/04/07 16:42] cpers [Common rivers processes] |
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| === Pure delay === | === Pure delay === | ||
| - | The delay in the watercourse (//transtime//) in days is determined by the length of the watercourse (//rivlen//) and the water’s maximum velocity (//rivvel//). The maximum velocity is a general parameter with unit //m/s//. The delay in the river is dependent on subbasin land area if the default river length is used. The delay is a pure translation. The delay is divided into whole days (//ttday//) and parts of the day (//ttpart//). | + | The delay in the watercourse (//transtime//) in days is determined by the length of the watercourse (//rivlen//) and the water’s maximum velocity (//rivvel//). The maximum velocity is a general parameter with unit //m/s//. The delay in the river is dependent on subbasin land area if the default river length is used. The delay is a pure translation. The delay is divided into whole days (//ttday//) and parts of the day (//ttpart//) (if the time step is daily, other wise the division is made into whole and fractions of that time step). In the following description daily time step is assumed. |
| <m> transtime = rivlen/{rivvel*8.64*10^4} </m> | <m> transtime = rivlen/{rivvel*8.64*10^4} </m> | ||
| Line 201: | Line 201: | ||
| === Inflow from upstream subbasins === | === Inflow from upstream subbasins === | ||
| - | In input files it is given to which subbasin(s) the outflow from each subbasin flows. The upstream flow enters the main river of the downstream subbasin. Inflow into the main river of a subbasin is calculated by adding outflows from upstream areas. Concentrations are flow-weighted by their relative share. | + | In input files it is given to which subbasin(s) the outflow from each subbasin flows. The upstream flow enters the main river of the downstream subbasin. Inflow into the main river of a subbasin is calculated by adding outflows from upstream areas. Concentrations are flow-weighted by their relative share. The upstream flow enters the main river, except if the upstream subbasin has a lakebasin that is part of the downstream subbasin's lake. In this case the upstream lakebasin outflow goes directly into the downstream lakebasin. |
start/hype_model_description/hype_routing.txt · Last modified: 2024/01/25 11:37 (external edit)
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