Simulation with dispersant application

[7eatriz]

Hello!

I'm trying to use PyGNOME to simulate dispersant applications with three different dispersant-to-oil ratios (DORs) but I can't identify where to add the dosage information or at least the volume of dispersant to be applied in the code. Could you help me with that?

I'm also having some difficulties with other functions related with dispersant application in the code:
Is the function fraction_sprayed used to indicate what percentages of the oil slick was covered with the dispersant applied?

What does the function active_rage indicates? Is it related with the duration of dispersant application or is it the time that the dispersant will effectively disperse the oil? How do you determine the second possibility? Should I consider the whole time of the simulation?

When setting the efficiency of the dispersant, should I consider the maximum efficiency of the dispersant for the oil I'm using or use laboratory data obtained from IFP or MNS tests? Should I add the DOR information here by using the efficiency obtained in the tests mentioned before for certain DOR's?

Here is the function I'm using for the dispersant simulation:

model.weatherers += cleanup.ChemicalDispersion(fraction_sprayed=.98, active_range=( model.start_time + timedelta(hours=24), model.start_time + timedelta(hours=288) ), waves=waves, efficiency=.84, name='Aplicação de Dispersante Químico')

Thank you for your attention!