What are the USPLN and NAPLN and how do they differ?
The USPLN (United States Precision Lightning Network) was created in 2004, and consists of about 100 lightning stroke detection sensors placed throughout the continental United States, along with the data processing and distribution system. Sensors are between 150 and 300 miles apart, forming a very dense network throughout the 48 states. This is the original network that has been providing data to customers. The USPLN has been augmented with additional sensors outside of the continental United States to form the North American Precision Lightning Network (NAPLN). Therefeore, the USPLN is now a subset of the NAPLN. There are currently over 25 new sensors located throughout Canada, Mexico, the Caribbean, Central America and northern South America, increasing the geographic extent of coverage, with additional sensors planned. Distances range between 300 and 800 miles.
