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start:hype_tutorials:floodplain_tutorial [2018/06/11 08:29]
cpers
start:hype_tutorials:floodplain_tutorial [2018/06/12 09:04]
cpers
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   * If no elevation information is available, both the threshold for flow from water body to floodplain (''​flmrr''​ and ''​floll''​) and the threshold for flow from floodplain to water body (''​flmrp''​ and ''​flolp''​) can be set to zero as a starting value.  ​   * If no elevation information is available, both the threshold for flow from water body to floodplain (''​flmrr''​ and ''​floll''​) and the threshold for flow from floodplain to water body (''​flmrp''​ and ''​flolp''​) can be set to zero as a starting value.  ​
  
-  * For ''​modeloption floodmodel 3'',​ two extra input data are needed (''​hrefr''​ and ''​hrefl''​). These are the floodplain threshold in an absolute reference system. For these the values ​**x2** can be used.+  * For ''​modeloption floodmodel 3'',​ two extra input data are needed (''​hrefr''​ and ''​hrefl''​). These are the floodplain threshold in an absolute reference system. For these the value **x2** can be used.
  
 **Recession coefficients** **Recession coefficients**
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   * Lake, river and floodplains evaporates according to the value of the evaporation parameters (''​cevp'',​ ''​ttmp'',​ both land use dependent) for the land use defined for these classes.   * Lake, river and floodplains evaporates according to the value of the evaporation parameters (''​cevp'',​ ''​ttmp'',​ both land use dependent) for the land use defined for these classes.
   * Surface runoff recession coefficient (''​srrcs'',​ land use dependent) should be set to 1 for lake and river classes with floodplains. Then no water will be left standing on the dry part of the floodplain, but will be added to the flooded water.   * Surface runoff recession coefficient (''​srrcs'',​ land use dependent) should be set to 1 for lake and river classes with floodplains. Then no water will be left standing on the dry part of the floodplain, but will be added to the flooded water.
 +  * There is a possibility to (temporary) replace the some of the data in [[start:​hype_file_reference:​flooddata.txt|FloodData.txt]] with model parameters (in [[start:​hype_file_reference:​par.txt|par.txt]]). This possibility can be used to (automatically) calibrate the elevation thresholds and recession coefficients. The parameters are general parameters, and thus only one floodplain can be in the set-up or all floodplains in the set-up will have the same parameter values during calibration. The use of this calibration parameters are set with a parameter ''​optonoff'',​ and the parameters are called ''​opt1'',​ .., ''​opt8''​. The parameters are described in [[start:​hype_file_reference:​par.txt|par.txt]].
start/hype_tutorials/floodplain_tutorial.txt ยท Last modified: 2024/02/05 12:45 by cpers