TUFLOW 1D Flood Modeller Connectivity: Difference between revisions
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There are two types of linking:-
* A "'''X1DH'''" link where a Flood Modeller 1D water level is being applied at the ESTRY node (i.e. Flood Modeller sends ESTRY a water level and ESTRY sends back a discharge to Flood Modeller).
* A "'''X1DQ'''" link where a Flood Modeller inflow/outflow is being applied at the ESTRY node (i.e. Flood Modeller sends ESTRY a discharge and ESTRY sends back a water level).
An ESTRY X1DH (the default) would be used for most Flood Modeller ESTRY links where TUFLOW is discharging into Flood Modeller. The discharge will be applied to the Flood Modeller 1D model as a lateral inflow. The Flood Modeller 1D node on the receiving end of an X1DH connection must be a channel unit (eg, River, Interpolate, Replicate or Conduit) and must not be the end node of a reach (ie, distance to next cross section of zero). This is commonly used when representing a pipe network within ESTRY which discharges to an open channel represented in Flood Modeller as per Figure 1.
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'''NOTE: Remember that the Flood Modeller node ID is Case Sensitive.'''
==Building a TUFLOW-Flood Modeller 1D-1D Connection==
Flood Modeller and TUFLOW will be considered linked if an ESTRY node in a 1D_nwk layer, and a Flood Modeller node in a Read GIS ISIS Nodes or Read GIS ISIS Network layer are snapped together (see Figure 1). Make sure the 2 nodes are snapped, or that a snap tolerance is being used. The ESTRY node should have a 1d_nwk Conn_1D_2D attribute of either "X1DH" or "X1DQ". If Conn_1D_2D field is blank then “X1DH” is assumed (see Figure 2). Note that the upstream and downstream inverts for the ESTRY node linked to Flood Modeller should be set to -99999 unless the node is also being used to set the inverts of channels snapped to it.
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