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WW3 point output out of grid #2368

Open NickSzapiro-NOAA opened 1 month ago

NickSzapiro-NOAA commented 1 month ago

Description

log.ww3 in various global regression tests show warnings like

*** WAVEWATCH-III WARNING : OUTPUT POINT OUT OF GRID : -85.078 -19.425 32012 POINT SKIPPPED

These occur for locations specified in tests/parm/ww3_points.list with longitudes .LE. 0. Options to fix include:

  1. modifying the (non-polar) longitudes in parm/ww3_points.list
  2. enhancing the internals used in W3IOPP to preprocess point output

1 is easiest. Do the WW3 grids used in UFS have a convention for longitudes like [-180°,180°) or [0°,360°)?

To Reproduce:

Run a regression test with ww3 point output at locations specified by tests/parm/ww3_points.list and look at log.ww3

JessicaMeixner-NOAA commented 1 month ago

@NickSzapiro-NOAA I have created a WW3 issue to track this as well: https://github.com/NOAA-EMC/WW3/issues/1273 for your solution 2, which is more robust although solution 1 is something we can likely get fixed today.

The unstructured grids are 0 to 360. I'd have to look at which HAFS grid we're using to see if it's -180 to 180.

And thank you @NickSzapiro-NOAA for making this issue!! This is a great find, I had forgotten about this issue that we had run into a few years ago.