High resolution map of light pollution over Poland

- A simple model and high-resolution data were used to create a map of light pollution over Poland.
- Resultant map has 100 m resolution and was calculated in a reasonable time.
- This method is a new approach to investigate night sky brightness on large areas.

In 1976 Berry introduced a simple mathematical equation to calculate artificial night sky brightness at zenith. In the original model cities, considered as points with given population, are only sources of light emission. In contrary to Berry׳s model, we assumed that all terrain surface can be a source of light. Emission of light depends on percent of built up area in a given cell. We based on Berry׳s model. Using field measurements and high-resolution data we obtained the map of night sky brightness over Poland in 100-m resolution. High resolution input data, combined with a very simple model, makes it possible to obtain detailed structures of the night sky brightness without complicating the calculations.