github.com/jonnyschaefer/radolan

radolan

Go package radolan parses the DWD RADOLAN / RADVOR radar composite format.

This format is used by the DWD for weather radar data.

The obtained results can be processed and visualized with additional functions. The example program radolan2png is included to quickly convert composite files to png images.

This library was developed for Regenampel.de, but offers even more features for awesome ideas and projects.

Besides local scans, the following grids are currently supported:

• National Grid (900km x 900km)
• National Picture Grid (920km x 920km)
• Extended National Grid (900km x 1100km)
• DE1200 National Grid (1100km x 1200km)
• Middle-European Grid (1400km x 1500km)

Tested input products:

Product	Grid	Description
EX	middle-european	reflectivity
FX	national	nowcast reflectivity
FZ	national	nowcast reflectivity
PE	local	echo top
PF	local	reflectivity
PG	national picture	reflectivity
PR	local	doppler radial velocity
PX	local	reflectivity
PZ	local	3D reflectivity CAPPI
RW	national	hourly accumulated
RX	national	reflectivity
SF	national	daily accumulated
WX	extended national	reflectivity
WN	DE1200 Sphere	nowcast reflectivity
WN	DE1200 WGS84	nowcast reflectivity

Those can be considered working with sufficient accuracy. Other formats might be working (not tested).

Documentation

Documentation is included in the corresponding source files and also available at https://godoc.org/gitlab.cs.fau.de/since/radolan

Installation

mkdir -p ~/go/src ~/go/pkg ~/go/bin
GOPATH="~/go" go get gitlab.cs.fau.de/since/radolan/radolan2png

Sample image

This image shows radar reflectivity (dBZ) captured 31.07.2016 18:50 CEST

Datenbasis: Deutscher Wetterdienst, Radardaten bildlich wiedergegeben