Accession Number:

ADP002204

Title:

Airborne and Ground-Based Lightning Electric and Magnetic Fields and VHF Source Locations for a Two-Stroke Ground Flash,

Descriptive Note:

Corporate Author:

LIGHTNING TECHNOLOGIES INC PITTSFIELD MA

Personal Author(s):

• Uman,M. A.
• Krider,E. P.
• Rustan,P. L. , Jr.
• Kuhlman,B. P.
• Moreau,J. P.

Report Date:

1983-01-01

Pagination or Media Count:

8.0

Abstract:

We have reduced and analyzed the data from a two-stroke lightning flash to ground which occurred in South Florida on July 16, 1981, within a network of four ground stations instrumented for VHF measurements, about 15 km from a ground station instrumented for wide-band electric field measurements, and within 10 km of a WC-130 aircraft operating at 5.2 km and instrumented for wide-band electric and magnetic field measurements. The four-station ground-based VHF measurements allow a reconstruction of the geometry of the flash, which was composed of two separate channels to ground. Electric field system bandwidth for the ground measurement was from 0.02 Hz to about 2 MHz electric and magnetic field system bandwidths on the aircraft extended to 20 MHz. Ground-based and airborne measurements of fields are presented and shown to be consistent with one another. Author

Descriptors:

• *Lightning
• Direction finding
• Position(Location)
• Magnetic fields
• Electric fields
• Radio waves
• Very high frequency
• Measurement
• Airborne
• Ground level
• Florida
• Symposia

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE