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New Sensors Map Lightning Strikes

To better predict severe weather, a device developed at The University of Alabama in Huntsville (UAH) has become a valuable tool in researchers' quest to determine how lightning is spawned in clouds.

Operating in the very low frequency (VLF) spectrum, Huntsville Alabama Marx Meter Array (HAMMA) sensors detect both the intensity and duration of a bolt, called its energetics, and provide scientists with more information than previous mapping array instruments, which usually operate in the very high frequency (VHF) spectrum.

Using the data from a network of HAMMA sensors, the computer generates maps showing the intensity and distribution of the lightning.



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