Lightning, NSSL Mobile Mesonet
Lightning over National Severe Storms Laboratory mobile mesonet. Enid, Oklahoma, May 15, 2009. In meteorology, a mesonet is a network of automated weather stations designed to observe mesoscale meteorological phenomena. Dry lines, squall lines, and sea breezes are examples of phenomena that can be observed by mesonets. Due to the space and time scales associated with mesoscale phenomena, weather stations comprising a mesonet will be spaced closer together and report more frequently than synoptic scale observing networks, such as ASOS. The term mesonet refers to the collective group of these weather stations, and are typically owned and operated by a common entity. The distinguishing features that classify a network of weather stations as a mesonet are station density and temporal resolution. Depending upon the phenomena meant to be observed, mesonet stations will have a spatial spacing of 2 to 40 km and report conditions every 1 to 15 minutes.
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Photo credit: © Photo Researchers / Alamy / Afripics
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