NOAA-ORR-ERD / PyGnome

The General NOAA Operational Modeling Environment
https://gnome.orr.noaa.gov/doc/pygnome/index.html
Other
58 stars 44 forks source link

Clean-up options #44

Open amirheidari opened 6 years ago

amirheidari commented 6 years ago

Dear friends, I have some questions about three clean-up options in PyGnome: Skimmer, Burn and ChemicalDispersion. When I activate these options in my model, I see that visually the clean-up operations have no effect on the spill trajectory. Apparently, these operations only reduce the mass of LEs and do not change their path, at all. I checked the code in detail, and noted that when, for example, a skimmer is activated in the model, a number of LEs are marked for skimming. I would like to know: 1- How these LEs are selected and marked? are all LEs are selected? Is it possible to mark a certain set of LEs? 2- Is it possible to define, for example, a specific skimmer in a certain location? for example, a skimmer at a location 20 km far from the source? or, a dispersant to be applied for only one branch of the oil slick in a certain location? 3- Is it possible to confine/trap the LEs by boom (to stop their transport?)

Also, if possible please let me know if there is a guideline on the mathematical fundamentals of these operations in PyGnome (e.g. the meaning of fraction_sprayed in ChemicalDispesion).

Best Regards Payam Amir-Heidari

ChrisBarker-NOAA commented 6 years ago

Thanks for your interest.

The "cleanup" algorithms in GNOME are very simplistic, and really only suited to use with the "weathering only" modes.

@coconnor8: could you answer this one?

1- How these LEs are selected and marked? are all LEs are selected?

Is it possible to mark a certain set of LEs?

not now -- but we wrote the code that way to enable that in the future.

2- Is it possible to define, for example, a specific skimmer in a certain location? for example, a skimmer at a location 20 km far from the source? or, a dispersant to be applied for only one branch of the oil slick in a certain location?

no -- not yet.

3- Is it possible to confine/trap the LEs by boom (to stop their transport?)

no.

This is all functionality that we would like to include, but it has not floated to the top of the priority list yet...

amirheidari commented 6 years ago

Thank you very much for your continuous support, Dr. Barker. @coconnor8 : Many thanks for your email. Now, the processes are more clear for me.

Sincerely, Payam Amir-Heidari

tommasogallingani commented 1 year ago

Hi @coconnor8 and @ChrisBarker-NOAA, I'm following this request to ask you if there are any update on this topic. In particular, could you please describe the process of marking LE and any possibility or idea you can suggest for the implementation of the booms? thanks