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start:hype_model_description:hype_routing [2019/11/11 13:31]
cpers [Outlet lake with two outlets]
start:hype_model_description:hype_routing [2019/12/17 15:48] (current)
cpers [Basic assumptions]
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 An outlet lake can be part of a larger lake. It is then called a lake basin. Lake basins are olakes in nearby subbasins. Outlet lakes that are not lake basins are referred to below as simple outlet lakes. ​ An outlet lake can be part of a larger lake. It is then called a lake basin. Lake basins are olakes in nearby subbasins. Outlet lakes that are not lake basins are referred to below as simple outlet lakes. ​
  
-A simple outlet lake has a threshold. The outflow ends if the water level drops below the threshold. Lake mean depth below the threshold is specified in GeoData.txt or LakeData.txt as //​lake_depth//​ in meters. Lake depth can also be set by parameters, i.e general parameter //gldepo// or olake region parameter //​olldepth//​. The threshold is also the the water level of the lake at the start of a simulation. The current water level is denoted as //wlm// in Fig. 2. For printing, the outlet lake water level (output variable //wcom//) is calculated in meters and you can set a reference level (//w0ref//) in LakeData.txt to get the same height system as any observations of the lake's water level. The lake’s //w0ref// is added to the water level above the threshold. HYPE assumes the lake has vertical sides in the calculations,​ thus the observed variation may be larger than the simulated variation. It is therefore possible to adjust the output //wcom// for the actual amplitude of the regulation volume (//wamp//). This will make the simulated and recorded water stage comparable below the threshold for a regulated lake. +A simple outlet lake has a threshold. The outflow ends if the water level drops below the threshold. Lake mean depth below the threshold is specified in GeoData.txt or LakeData.txt as //​lake_depth//​ in meters. Lake depth can also be set by parameters, i.e general parameter //gldepo// or olake region parameter //​olldepth//​. The threshold is also the the water level of the lake at the start of a simulation. The current water level is denoted as //wlm// in Fig. 2. For printing, the outlet lake water level (output variable //wcom//) is calculated in meters and you can set a reference level (//w0ref//) in LakeData.txt to get the same height system as any observations of the lake's water level. The lake’s //w0ref// is added to the water level above the threshold. HYPE assumes the lake has vertical sides in the calculations,​ thus the observed variation may be larger than the simulated variation. It is therefore possible to adjust the output //​wcom// ​(and //​wcav//​) ​for the actual amplitude of the regulation volume (//wamp//). This will make the simulated and recorded water stage comparable below the threshold for a regulated lake. 
  
 |{{:​start:​hype_model_description:​outletlakewithvariables2.png?​400|}}| |{{:​start:​hype_model_description:​outletlakewithvariables2.png?​400|}}|
start/hype_model_description/hype_routing.txt · Last modified: 2019/12/17 15:48 by cpers