The 4-panel image below shows lightning over western AR. Upper-left is flash extent density (FED), which is scheduled to be the initial operational GLM product in AWIPS. Upper right is Event density which seems to show similar patterns to FED, but the values are 5 to 10 times higher. Not sure if this adds any significant value to FED.
The bottom two panels are Group Centroid Density and Flash Centroid Density. All the centroids are just single points, so each one highlights a single grid cell in the 2x2 km ABI grid, leading to a much finer "pixelated" appearance. At this point it's hard to see what operational use they might have. A.Cope
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