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tomedwards

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  1. I am having problems setting up a water level boundary and would be very grateful if anyone could offer some assistance. I am trying to vary a 2D water level boundary as described in section 4.10.7 in the Tuflow manual (last paragraph on the page). I have water level time series at 5 points located along a river bank and I want Tuflow to interpolate the water level in between these points and apply it to the 2D domain. I have digitised a 2D HX line along the edge of the river bank and created a 1d_bc file which consists of 5 points to represent the locations at which I have the hydrographs (the 1d bc points are snapped to vertices of the 2d HX line). The 2d_bc file also includes CN points to connect the 1d_bc HT to the 2d_bc HX lines. I have created a 1d nwk which simply consists of nodes to snap the 1d_bc HT points to. I have been playing around with this for a while and keep getting various errors such as ‘ERROR – invalid channels per node count’ or similar. Basically I think that I am not setting up the 1d network correctly. The model I have is purely 2d i.e. I just want to model the flow from the river onto the floodplain using the water level boundaries. However I seem to have to create a 1d network to get Tuflow to interpolate between by hydrograph points - which I don't really want to do and this is causing problems. Any assistance would be much appreciated, apologies if I haven’t explained the problem very well! Thanks
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