Extremely deep heads in Gwflow

[Halinishi Yusuf]

Hi all,

I am simulating ground water storage in shallow alluvial aquifers and the observed heads are extremely large ( ranging from 3 metres to 140m). The rivers of interest are seasonal sandy rivers with an alluvial depth of approximately 0.5-7 metres. Could it be  caused by the large aquifers derived from BDTICM are in the range of 80 -120m. Is it possible to adjust the aquifer depths in the model to a realistic depth that matches the reality on the ground.

Attached is the state observed head for your reference.

NB. I might be reposting this, I attempted earlier and I am not sure if the email went through.

Thanks in advance,

H.Y