# radolan
### Go package radolan parses the DWD RADOLAN / RADVOR radar composite format.
This format is used by the [DWD](http://www.dwd.de/DE/leistungen/radolan/radolan.html)
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](https://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
![alt text](https://gitlab.cs.fau.de/since/radolan/raw/master/assets/31-07-2016-1850.png)

Datenbasis: Deutscher Wetterdienst, Radardaten bildlich wiedergegeben


Meet the Socket Team at BlackHat and DEF CON in Las Vegas, Aug 4-6

gitlab.cs.fau.de/since/radolan

radolan

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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

gitlab.cs.fau.de/since/radolan

radolan

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

Documentation

Installation

Sample image

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