add an extra erosional base level that prevents ghost nodes to lower …

[EstherHeck]

Here I add a functionality that prevents the loss of material through fastscape boundary flux when there is a mountain in the middle of the model.

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[EstherHeck]

Hi @Djneu is that the branch that you have a PR into main for? Or should I make a PR to another branch?

[EstherHeck]

o no, this is a mess. Appearantly I didnt base it on the latest version of you fastscape_update branch. Can you give me a hint, which branch I should take? Then I will do it again....