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routing crossing Antimeridian

  • Apolloni
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3 days 4 hours ago #3311 by Apolloni
routing crossing Antimeridian was created by Apolloni
Hello everyone,
I am experiencing a problem with routing crossing the Antimeridian, where the isochrones are interrupted.
It seems as a bug in the reading of Grib files: no wind data is extracted between 179° East and 180° West.
Any suggestions?
Riccardo

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3 days 4 hours ago - 3 days 4 hours ago #3312 by maitai
Replied by maitai on topic routing crossing Antimeridian
Tested again here, no problem
Make sure your gribs actually cover the antemeridian line. For instance it is not possible to download a xygrib grib crossing this line, so if you have 2 grib one stopping at 179.9°E and the other one starting at 179.9°W that will create a hole and routing will stop
One solution is to download for instance a VLM Partial grib that will cover the line.
Last edit: 3 days 4 hours ago by maitai.

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3 days 2 hours ago #3313 by Apolloni
Replied by Apolloni on topic routing crossing Antimeridian
Tanks
The gribs I'm using are from Era5 Copernicus: there is an hole between 179.5 and 180.
Riccardo

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3 days 2 hours ago #3314 by maitai
Replied by maitai on topic routing crossing Antimeridian
In that case as I said just add a VLM partial grib to jump over these longitudes

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