Check Files 1d x1d nodes

The x1d_nodes check file contains information on nodes read in from an external 1D domain such as Flood Modeller (previously known as ISIS), XP-SWMM and 12D Solutions DDA 1D solution. It is useful for cross-checking these external 1D nodes and associated information passed from these 1D schemes.

The following check files may also be of use for models that use external 1D domains:

• x1d_channels check
  
• check_x1D_H_to_2D.csv
  
• check_2D_Q_to_x1D.csv
  

Attributes of _x1d_nodes check

Attribute Name	Attribute Description
ID	The ID of the external 1D node.
ID_DS	The ID of the external 1D node immediately downstream.
X1D_Index	Index ID of nodes within an external 1D scheme.
Bed_Level	The bed level of the external ID Node. For Flood Modeller, this value is the bed level of the node minus the depth of the Preissmann slot if used (by default this is 1m).
Spill_Level	xxxxx.
Junction_Type	Sequential numbering of all nodes connected to a JUNCTION unit in Flood Modeller.
Unit_Type	An ID denoting the type of unit in the external 1D scheme connected to TUFLOW. For Flood Modeller, these are: 0 - RIVER unit with a chainage downstream of 0m 2 - HTBDY 10 - WEIR unit 11 - BERNOULLI loss unit 18 - RNWEIR unit 19 - RIVER unit 20 - SPILL unit 21 - SLUICE unit 42 - ORIFICE unit 43 - USBPR bridge unit 55 - NCBDY

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