Historical lightning data can be transformed into useful analytical information including lightning density maps. These maps graphically depict the areas of highest and lowest cloud-to-ground lightning concentration by contouring the number of events within a given area and time.
The 10 Year Average Lightning Density Map (2005-2014) to the left has been generated using a 0.1 degree pixel (approximately 10km). While this image presents a generalized overview, lightning density maps can be created with great amounts of detail for any spatial or temporal coverage available. Seasonal and regional maps are ideal for defining areas of lightning activity for operational, safety, and equipment management.
Comparisons of annual density maps and their underlying detailed data provide additional tools for understanding failures and outages, planning and optimizing asset deployment and land usage, and analyzing operational, personnel and equipment safety.
Cloud-to-ground stroke counts per area per year are useful complementary data to the lightning density maps. Counts are available from 2005 to current, and can be regionally summarized for territory analysis of lightning activity.
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