Difference between revisions of "TUFLOW Message 1262"
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m (Protected "TUFLOW Message 1262" ([edit=sysop] (indefinite) [move=sysop] (indefinite))) |
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{{TUFLOW_Message | {{TUFLOW_Message | ||
| − | |tuflow_message=WARNING 1262 - Manning's n value of | + | |tuflow_message=WARNING 1262 - Manning's n value of <Manning's n value> for channel <Channel ID> is unusually low or high. |
|alt_msg=NA | |alt_msg=NA | ||
|type=[[WARNING]] | |type=[[WARNING]] | ||
Revision as of 14:04, 2 February 2011
TUFLOW Message
WARNING 1262 - Manning's n value of <Manning's n value> for channel <Channel ID> is unusually low or high.
Alternate Message
NA
Message Type
WARNING
Description
Manning's n value assigned to channel is outside normal range.
Suggestions
Check Manning's n value for channel. If material values are defined in the XZ cross-section ("M" flag), the n_or_n_F attribute in the 1d_nwk is a multiplication factor and should be set to 1 (this may be adjusted as part of the calibration process). This can occur if a the multiplication value is set to a typical Manning's value (e.g. 0.04) and materials are defined in the XZM cross-section. In this case the Manning's n value may become 0.04 x 0.04 = 0.0016!
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