Low Res,high Res On The Model Runs.

[wolvesfan]

Hi,i would be most grateful if someone could explain the diffrences,thanks.

[Paul]

Hi, on the GFS the first 192 hours are in higher resolution (0.5 degrees), after that it's at lower resolution (2.5 degrees). All the weather models produce a grid of data across the globe (or whatever area they're covering), so the higher the resolution the smaller those grid boxes are.

These are examples from the GFS - the numbers are the centre of each grid:

Hi-res

Lo-res

The higher res version has that many more grid points, and that much more info, so is able to give extra local detail within it.

[knocker]

This may be of interest as well.

http://www.metoffice.gov.uk/research/modelling-systems/unified-model/weather-forecasting