gributils 0.7

Utils on top of pygrib for extracting metadata and manipulating grib files

gributils is a set of utilities on top of pygrib for manipulating and indexing gribfiles. Current features include:

• Grib index * Store and query a large set (historical dataset) of grib files * PostGIS based * Query by geographical location,, timestamp and parameter name, parameter unit, level and level type. * Parameter name normalization using a simple CSV file

• Extract polygons of areas covered with valid values in a grib layer

• Provide accurate grid coordinates, even for grib version 1 files where too low precision in Dx / Dy have resulted in a distorted grid.

• Conversion from values with U and V components (e.g. for wind) to magnitude and degree north.