open TELEMAC-MASCARET The mathematically superior suite of solvers

Hi Riadh,

So I got that to work and tried different heights of water depth for ZSTAR. Unfortunately, the same error message came again and again.

================================================================================
ITERATION 0 TIME 0 D 0 H 0 MN 0.0000 S ( 0.0000 S)
================================================================================

---

MASS BALANCE
INITIAL MASS OF WATER IN THE DOMAIN : 1605157.6100554552

SOURCE POINT 1 PUT ON POINT
3535825.5000000000 AND 5721378.5000000000
LOCATED AT 2.4152879747031890 METRES

SOURCE POINT 1 PUT ON PLANE 1
LOCATED AT 0.46296203613280795 METRES
USING STREAMLINE VERSION 7.2 FOR CHARACTERISTICS
CALCOT: PLANES 1 AND 2
INTERCROSS AT POINT 1867
LOWER POINT : 99.712623596191406
HIGHER POINT: 99.712065230069811
DIFFERENCE : -5.5836612159509968E-004
DEPTH : -5.5836612159612262E-002

PLANTE: PROGRAM STOPPED AFTER AN ERROR
RETURNING EXIT CODE: 2


I followed your advice and looked at the examples. I even took the same steering files where tidel flat = 0. I could run the examples, but if I again indicated my data (grid, tracer, ...), the error message comes again as above.
Is Tidal Flats=on, the simulation works, but unfortunately I get then at the edges of the river these higher water levels and thus incorrect concentration information.

Do you have any other ideas?

Best regards,
Vittel

Hi Vittel,

I noticed you mentioned that you cannot refine your grid because your base data in your troublesome region is very bad. Do you mean you have a sparse data-set in that area? If so have you tried using a spatial prediction method? Velocity and surface errors can increase with distance between cross-sectional data. In river channels it is common practice to linearly interpolate between measured cross-sections and increase the resolution of your topographic data. The flip-side to this is that you're effectively smoothening off elevation values by introducing artificial data when in natural rivers you'll have a high variation.

Also, check your initial conditions for the initial elevation. When I got errors about intersecting layers at the beginning of my runs it was usually because my initial water elevation was too low.

Cheers,
SDAC