start:hype_tutorials:floodplain_tutorial
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start:hype_tutorials:floodplain_tutorial [2021/04/28 07:48] cpers |
start:hype_tutorials:floodplain_tutorial [2024/02/05 12:45] (current) cpers |
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| - area related data; area fractions between floodplain, water bodies and subbasins (including ''fpfol'', ''fpfmr'') | - area related data; area fractions between floodplain, water bodies and subbasins (including ''fpfol'', ''fpfmr'') | ||
| - elevation thresholds; thresholds between water body and flood plain and between water body and downstream lake/river (''floll'', ''flolp'', ''flmmr'', ''flmrp'', ''fymol'', ''fymmr'') | - elevation thresholds; thresholds between water body and flood plain and between water body and downstream lake/river (''floll'', ''flolp'', ''flmmr'', ''flmrp'', ''fymol'', ''fymmr'') | ||
| - | - recession coefficients; coefficients to regulate the flow between water body and floodplain (''rclfp'', ''rclpl'', ''rclfp'', ''rclpr''). | + | - recession coefficients; coefficients to regulate the flow between water body and floodplain (''rclfp'', ''rcfpl'', ''rcrfp'', ''rcfpr''). |
| These input data can be estimated in different ways. The suggestion here is to define those that can be observed/derived relatively easy from data (area and elevation threshold) and manually calibrate the others (recession coefficients). A method to do that is described below: | These input data can be estimated in different ways. The suggestion here is to define those that can be observed/derived relatively easy from data (area and elevation threshold) and manually calibrate the others (recession coefficients). A method to do that is described below: | ||
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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''. | + | * 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''. Different values for optonoff will replace different sets of floodplain data. You can replace none (optonoff=0) or all of them (optonoff=1), but alternatively replace only thresholds (optonoff=2), only recessioncoefficients (optonoff=3) or only maximum extent of floodplain (optonoff=4). |
| | ''opt1'' | replacing ''floll'' | | | ''opt1'' | replacing ''floll'' | | ||
start/hype_tutorials/floodplain_tutorial.1619588896.txt.gz ยท Last modified: 2023/11/16 14:28 (external edit)
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