Tuflow and estry manual Version 3


B.7Initial Water Level (IWL) Commands (.ecf)



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3.121D Domains (Networks)


1D domains are made up of a network of channels and nodes where:

  • Channels represent the conveyance of the flowpaths.

  • Nodes represent the storage of inundated areas.

There are no constraints on the complexity of the network with any number of channels being able to connect to a single node. Each channel is connected to two nodes; one at the channel’s upstream end the other at its downstream end. As of Build 2002-08-AC, the digitising of nodes is optional.

Note: There must be at least one (1) channel in at least one of the 1D domains. This can be a dummy channel separate to the rest of the domains.

1D networks are created in one or more GIS 1d_nwk layers. The original fixed field format entry may still be used, however, it is strongly recommended to use the GIS format as documented in the following sections.



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