In some cases, a local water balance error is generated during the UZ-SZ exchange. This can occur when the water table is rising faster than the solution scheme can keep up. There is an Extra Parameter that can help if you notice such condition:
|
Parameter Name |
Type |
Value |
|---|---|---|
|
max iterations UZ-coupling |
Integer |
greater than or equal to 10 |
The internal default value in MIKE SHE is 10, but you may find a value of between 200 and 500 yields better results if you are seeing some local water balance issues. The impact on run-time is marginal, as the extra iterations are not used if the solution converges earlier.