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start:hype_file_reference:branchdata.txt

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start:hype_file_reference:branchdata.txt [2016/10/28 10:54]
cpers
start:hype_file_reference:branchdata.txt [2021/06/15 15:26] (current)
cpers
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 ====== BranchData.txt ====== ====== BranchData.txt ======
  
-This file contains all bifurcations within a HYPE model domain. Bifurcations are stream splits in downstream direction. They can occur naturally, but are often used in HYPE to describe inter-catchment water transfers for e.g. hydropower production. HYPE allows to split water flows by fixed fractions and additionally ​to define minimum and maximum flow limits ​in this fileAdditionally ​lakes can have two outlets defined in [[start:​hype_file_reference:​lakedata.txt|LakeData.txt]]. Then only the path of the branch is necessary to give in BranchData.txt. Additionally ​''​mainpart''​ can be given. It is used to calculate the upstream area of the subbasin, which in turn is used for calculating initial volume of main river, general rating curve parameters, upstream-area-output variables etc.+This file contains all bifurcations within a HYPE model domain. Bifurcations are stream splits in downstream direction. They can occur naturally, but are often used in HYPE to describe inter-catchment water transfers for e.g. hydropower production. HYPE allows to split water flows by fixed fractions ​(''​mainpart''​) ​and optionally ​to define minimum and maximum flow limits. ​Another way to determine branch flow is through ​lakes with two outlets defined in [[start:​hype_file_reference:​lakedata.txt|LakeData.txt]]. Then only the path of the branch is necessary to give in BranchData.txt, but ''​mainpart''​ can also be given. It is used to calculate the upstream area of the subbasin, which in turn is used for calculating initial volume of main river, general rating curve parameters, upstream-area-output variables etc. A third way to define branch flow is by prescribing a constant or a time series of the wanted flow
    
  
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 <​sortable>​ <​sortable>​
-^ Variable ID ^ Unit ^ Description ^ +^ Variable ID     ​^ Unit                 ​^ Description ​                                                                                                                                                                                       
-|''​sourceid''​|//​-//​|SUBID of sub-basin with bifurcation,​ i.e. with two downstream sub-basins| +| ''​sourceid'' ​   | //-//                | SUBID of sub-basin with bifurcation,​ i.e. with two downstream sub-basins ​                                                                                                                          ​
-|''​branchid''​|//​-//​|SUBID of sub-basin receiving the second branch flow, must be located in a row below the sub-basin with bifurcation in [[start:​hype_file_reference:​geodata.txt|GeoData.txt]]| +| ''​branchid'' ​   | //-//                | SUBID of sub-basin receiving the second branch flow, must be located in a row below the sub-basin with bifurcation in [[start:​hype_file_reference:​geodata.txt|GeoData.txt]] ​                       
-|''​mainpart''​|//​-//​|fraction of flow from subbasin sourceid that flows in the main branch (as given in column //​maindown//​ in [[start:​hype_file_reference:​geodata.txt|GeoData.txt]]) (between 0 and 1). Default is 1.| +| ''​mainpart'' ​   | //-//                | fraction of flow from subbasin sourceid that flows in the main branch (as given in column //​maindown//​ in [[start:​hype_file_reference:​geodata.txt|GeoData.txt]]) (between 0 and 1). Default is 1.  
-|''​maxQmain''​|//​m<​sup>​3</​sup>/​s//​|maximum flow that is allowed in the main branch. Use 0 for no limitation or exclude column completely.| +| ''​maxQmain'' ​   | //​m<​sup>​3</​sup>/​s// ​ | maximum flow that is allowed in the main branch. Use 0 for no limitation or exclude column completely. ​                                                                                            ​
-|''​minQmain''​|//​m<​sup>​3</​sup>/​s//​|minimum flow that is required in the main branch before water is routed into branch. Use 0 for no limitation or exclude column completely.| +| ''​minQmain'' ​   | //​m<​sup>​3</​sup>/​s// ​ | minimum flow that is required in the main branch before water is routed into branch. Use 0 for no limitation or exclude column completely. ​                                                        ​
-|''​maxQbranch''​|//​m<​sup>​3</​sup>/​s//​|maximum flow that is allowed in the branch. Use 0 for no limitation or exclude column completely.|+| ''​maxQbranch'' ​ | //​m<​sup>​3</​sup>/​s// ​ | maximum flow that is allowed in the branch. Use 0 for no limitation or exclude column completely. ​                                                                                                 | 
 +| ''​Qbranch'' ​    | //-//                | the flow of the branch is prescribed; 0 (default) not use, 1 read flow from Xobs.txt (''​dwtr''​) ​                                                                                                       ​|
 </​sortable>​ </​sortable>​
start/hype_file_reference/branchdata.txt.1477644853.txt.gz · Last modified: 2016/10/28 10:54 by cpers