gribdoctor

Utility functions for handling quirks of weather data rasters in grib2 format

Installation

pip install gribdoctor --pre

Usage - smoosh

stack multiple gribs of the same or varying resolutions

Usage: gribdoctor smoosh [OPTIONS] [INPUTS]... OUTPUT

OPTIONS:

-dev, --develoment Dev tag for experimental features

-uw, --unwrap Unwrap GFS Rasters

--help Show this message and exit.

Use this subcommand to "smoosh" together any number of variable resolution gribs into one tiff. This also effectively performs the below globewrap operation on all inputs if indicated with --unwrap, and outputs a raster of 2x (due to unwrapping) the highest input resolution.

Usage - unwrap

gribdoctor unwrap [OPTIONS] INGRIB OUTRASTER

OPTIONS

-bt, --bandtags Flag to indicate printing of band tags / band metadata to stdout

-b, --bidx Bands to include in output raster. Default = all (use caution - you may inadvertently create ginourmous tif files)

Many gridded weather GRIBs, such as NOAA's Global Forecast System (GFS), cover a global extent of -0.5 to 359.5 (or similar, depending on resolution), with the antimeridian (-180 / 180) bisecting a column of pixels. This routine upsamples, slices, and merges these rasters as to convert them to "standard" -180 to 180 extent global grids. Outputs to any raster format supported by rasterio.