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GRASS used together with R-stats provides a powerful toolset to analyse meteorological time series and to perform spatio-temporal interpolation.

d.rast.arrow at work
  • r.series - useful for time series analysis of raster data.
  • - useful for 2D spline interpolation between sparse data points.


Wind meteo data usually follow a convention different from the GRASS one. First, the wind direction expresses the direction which wind blows FROM and not TO (as a non meteorologist might expect). Second, the code expressing the directions differs from the one adopted by GRASS (for aspect, flow direction, etc.).