LMA lightning sources are often shown using a format similar to
the one shown below:
Intracloud discharge VHF sources located
using a 10 station array installed in the region surrounding
Langmuir Laboratory in New Mexico. Langmuir laboratory
is located at over 10,000 ft. altitude.
Intracloud activity leading up to a
cloud-to-ground discharge.
Both figures are adapted from Rison et al., (1999).