Tuflow and estry manual Version 3

6.4.2SMS Output

1D domain results can be output in combination with 2D domain(s) by using the 1d_wll layer (see Section 3.18 and Read MI WLL). Note: viewing the results must be carried out in SMS Version 8.

In viewing the results in SMS, if the 1D and 2D domains overlap, the 1D results are displayed on top of the 2D results. However, when observing the scalar and vector magnitudes as the pointer is moved around, the 2D values are given precedence over the 1D where overlap occurs. This is a characteristic of SMS.

6.4.3Binary File (.ebf file)

The binary file contains all results in a binary format. It is no longer supported or output. It was used by a variety of programs in ESTRY’s previous life on Unix based systems.

6.4.4Mass Balance Output

As of Build 2005-05-AN, a _1d_MB.csv and and _TSMB.mif file are created. These contain time-series data, in Excel and MapInfo formats, of the mass balance error at each node. Mass errors occur at nodes that are frequently drying (undershooting), or are being limited if Head Rate Limit is being used. Volume values are specified in m³, while mass error values over time are given as a flow rate (m³/s) so that they can be compared with the flow through the model at that location.

Of particular use in identifying problematic nodes is the ME_Avg_Abs attribute in the _TSMB.mif layer. This value is the average of the absolute mass errors occurring at the node in m³/s. Using GIS thematic mapping tools, problematic nodes that may be strongly and adversely effecting the simulation can be easily identified as those that experience a high ME_Avg_Abs.

Percentage mass errors as provided for the 2D domains is planned for future releases.