Below you can see a rough estimation of the coverage of the Blitzortung.org lightning detection network. NOTE: Only the density of detector station is considered here, not their constellation which is even more important.
Feel free to participate in our high resolution lightning detection network! You can build up stations almost everywhere in the world! More information on Blitzortung.org -> Cover Your Area.
In the map above, up to four circles with different sizes and colors are painted around every currently active station. If the colored areas overlap, the visibility of the colors gets better. If you enter a ratio, the mean longtime ratio for each station will be used and stations that don't reach this ratio are not included. Please note: This map is only a very rough estimation to show our station coverage and the projection is not exact! For real coverage, we also have to consider the angle between all station for each point on the map.
On the left side you can see a comparison of the coverage (top) with our calculated lightning densities for the year 2011 (bottom). The highest lightning densities were calculated in the same regions, that have a very high station coverage. If you look on France, you can see an increase of lightning density from west to east. This is also visible in the coverage picture. Conclusion: We need more stations in uncovered regions to catch more lightnings there! Currently, calculation of lightning densities does only make sense in blue areas.
When we want to compare our calculated data with the reality, we have to consider two parameters:
If you enter a ratio, only circles to stations with higher detection ratios in that range are painted into the map. You should concentrate on the blue color, so disable the other colors if you enter a ratio.