Peril area lookup error about oasislmf HOT 9 CLOSED

@rkbanagar during the peril lookup the distance of each location lon./lat. point to the convex hull of all the peril area points is computed, and depending on the value of loc_to_global_areas_boundary_min_distance (in the lookup configuration file lookup.json) the peril lookup will pass if the computed distance is <= the min. distance, or fail if otherwise.

You can adjust the value of loc_to_global_areas_boundary_min_distance in your lookup JSON file and try again.

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The idea is that the exposure locations shouldn't be too "far" from the region covered by peril area points (which are used for peril component of the lookup). The peril lookup uses an Rtree spatial index representation of the peril areas dict file, which is fixed for the PiWind model and shouldn't really be changed. So you can get it working by modifying the value of loc_to_global_areas_boundary_min_distance in the lookup JSON.

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Also, if individual locations are too far away from the peril areas region then this wouldn't stop the lookup from processing keys for all locations. You would just get messages for those locations which indicate that they are too far away too receive an area peril (peril area) ID - the vuln. lookup is separate and wouldn't be affected. The overall lookup status for a location is success if both the peril and vuln. lookups succeed, or fail or nomatch otherwise.

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@rkbanagar This is not a bug with the MDK package - so I'm closing this.

Please note that PiWind is a windstorm model for a small town in the UK whose minimum bounding rectangle is given by (-0.9176515, 52.7339933, -0.8569864, 52.7946584). If your exposure locations are too far away from the region that this represents, then the peril component of the lookup will fail for those locations. So this is not a package error, but simply a result of your exposure locations being too far away from the geographic region that the model is based on.

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Your comments are helpful.
Thank you very much.

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May I ask what you are trying to achieve with Oasis? I'm not sure which organization you are with. Feel free to email if more appropriate ([email protected] ).

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I am trying to run the Oasis model for a dummy data outside the Pi city domain.

Can I create a areaperil_dict.csv lying outside the Pi city or the global domain is hard coded?

Can the Global boundary(-0.9176515, 52.7339933, -0.8569864, 52.7946584) for PIwind be customized?

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@rkbanagar I will create a new issue in the PiWind repository as that is the right place for further discussion.

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@rkbanagar Please follow the discussion here

OasisLMF/OasisPiWind#21

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