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Hi Jarvus
Those error messages are what I see when running unsteady calc (icon of guy running over hill), it fails, and I click on View > Summary Err, Warn, Notes.
Looking at the finished computations window it says:
" **** Matrix Solution Failed ****
Minimum error exceeds allowable tolerance at 01JAN2008 1200
River upper 154.*
Finished Unsteady Flow Simulation"
Is the hydrograph output the same as the view profiles button? That shows the EG line reaching 3,000,000 m over one XS (terrain El. is 2500 m and under). That suggests a problem (!)
I'll try putting in more XS. The terrain is mountainous so relief does change between them.
Thanks for the reply!
Neil
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