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CROW - Online tool to visualize birds detected by weather radars

DOI Run tests and deploy to GitHub pages if successful

CROW is a single-page application to visualize birds detected by weather radars. It visualizes vpts data from a public repository directly in the browser and can thus be hosted on a static file server. As it only visualizes data from one radar at a time, it is easily scalable.

CROW is implemented in TypeScript and makes use of the Vue CLI toolkit, D3 and BootstrapVue.

CROW was jointly developed by the Research Institute for Nature and Forest (INBO) and the Royal Meteorological Institute of Belgium (RMI) in collaboration with the Royal Belgian Institute for Natural Sciences (RBINS), with financial support from the Belgian Science Policy Office (BelSPO valorisation project CROW).

The application can be cited as:

Noé N, Reyniers M, Van Hoey S, Desmet P (2021) CROW - Online tool to visualize birds detected by weather radars.

Running installations

Installation and deployment

Install with:

npm install

Run in development with:

npm run serve

Run unit tests with:

npm run test:unit

Build with:

npm run build

There is no need to build manually, as this is done automatically by GitHub Actions for every commit pushed to the main branch. It will serve the site at

If the app is to be deployed under a URL prefix (for example, create a env.local file in the source tree root with content: URL_PREFIX = "/crow/".

Architecture and data flow

See src/


MIT License