gribdoctor

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

Installation

.. role:: console(code) :language: console

:console:pip install gribdoctor --pre

Usage - smoosh

stack multiple gribs of the same or varying resolutions

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

OPTIONS:

:console:-dev, --develoment Dev tag for experimental features

:console:-uw, --unwrap Unwrap GFS Rasters

:console:--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 :console:globewrap operation on all inputs if indicated with :console:--unwrap, and outputs a raster of 2x (due to unwrapping) the highest input resolution.

Usage - unwrap

:console:gribdoctor unwrap [OPTIONS] INGRIB OUTRASTER

OPTIONS

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

:console:-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) <http://www.ncdc.noaa.gov/data-access/model-data/model-datasets/global-forcast-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 <https://github.com/mapbox/rasterio>.