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Weathering processes #148

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larissafranklin23 opened this issue Jun 21, 2023 · 1 comment
Open

Weathering processes #148

larissafranklin23 opened this issue Jun 21, 2023 · 1 comment

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@larissafranklin23
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Hello,
I would like to know which weathering processes are planned in the operation of PyGnome. I have been running some simulations recently and noticed that the processes of biodegradation and dissolution have not been implemented yet. However, I saw in the manual that the emulsification process is mentioned, but I couldn't find it in my output file.
In my simulations I have some results like this:

"beached": 9353233.393957058,
"off_maps": 0.0,
"avg_density": 1023.3094613657522,
"floating": 30756652.63004875,
"amount_released": 72537599.99999999,
"non_weathering": 9353233.393957058,
"avg_viscosity": 0.9013307929063417,
"evaporated": 32410324.489733078,
"natural_dispersion": 16980.224566070945,
"sedimentation": 409.2616950438084,
"water_content": 0.577351617597763,
"time_stamp": "2019-12-02T01:00:00"

@ChrisBarker-NOAA
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You are correct, bio-degradation and dissolution are experimental at this point.

As for emulsification:

"water_content": 0.577351617597763,

An emulsion is water droplets mixed into the oil -- this indicates that the emulsion is ~58% water by mass.

Note also that:

"avg_density": 1023.3094613657522,

is the average over all elements of the total density of the emulsion, not the pure oil -- As a rule, the sea water is denser than the oil, so the emulsion is more dense than the pure oil as well.

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