How do I specify the amount of oil to be spilled in openoil model?

[mk7ossen]

what does the 'number' mean in the seed element function? These things are not covered well in the documentation section.

[knutfrode]

Hi,
Number is the number of elements used for the simulation.
This is independent of the oil amount, which is divided among the given particles.
For the oil amount, you can either specify mass_oil which is the mass per oil particle, or m3_per_hour which is the total amount of oil, to be divided equally by all particles. For an instantaneout spill, m3_pr_hour is simply m3, i.e. volume of oil.
See e.g. this example
https://opendrift.github.io/gallery/example_openoil_sample_output.html

[mk7ossen]

It solved the issue; Thank you very much.