Dear all

I recently added a new emission scheme for dust using a different size distribution, adding a fifth bin. But the results I found are quite unrealistic. I found more deposition than emission. So when I plot the accumulated net emission(Emission minus deposition) I found a negative value. To to be exact what I did was
1. First averaged the dust emission for the whole domain.
2. I did the same thing for deposition(summed all deposition: wet(wdrflx+wdwflx), and dry(ddflx)).
3. Take the difference that is Emission(step 1)-Deposition(step 2)

No boudary conditions for dust used!

By the way I did a similar simulation with the already existing Kok emission(but a fifth bin is added though the emission in this fifth bin,which is beyond 20um is negligibly small, almost zero) and the result looks fine.

I was wondering what is wrong with my result?
regards,
Netsanet