TUFLOW Message 1262: Difference between revisions
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{{TUFLOW_Message |
{{TUFLOW_Message |
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|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. |
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|alt_msg=NA |
|alt_msg=NA |
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|type=[[WARNING]] |
|type=[[WARNING]] |
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|message_desc=Manning's n value assigned to channel is outside normal range. |
|message_desc=Manning's n value assigned to channel is outside normal range. |
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|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! |
|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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|discussion_page=* [[Talk:TUFLOW Message 1262|Discuss Message 1262]] |
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|link3='' |
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|link4='' |
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|prelink=[[TUFLOW_Message_1261|Message 1261]] |
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|uplink=[[1xxx_TUFLOW_Messages|1xxx Messages]] |
|uplink=[[1xxx_TUFLOW_Messages|1xxx Messages]] |
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|nextlink=[[TUFLOW_Message_1264|Message 1264]] |
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Latest revision as of 16:00, 22 December 2022
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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