Satellite-based Nowcasting and Aviation Program


# of OTs detected by IRW-texture 0.5 degree box
Fraction of OT detections during daytime

Figure 5:  (top)The number of OTs detected by the IRW-texture technique with 0.5 degree grid boxes using GOES-12 imagery from April-September 2004-2008. (bottom) The fraction of overshooting top detections occurring during the daytime hours (9 AM to 9 PM LST). Cool colors indicate that OTs were detected more often during the night (9 PM to 9 AM LST).