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Instrument

Parallel Plate Antenna
Parallel Plate Antenna

The Parallel Plate Antenna is a passive device used to measure the vertical electric fields generated by lightning. It consists of two or more horizontal flat plates separated by a few meters to detect electromagnetic radiation emitted by lightning. The antenna can be adjusted for either slow-field or fast-field measurements. The slow-field antenna has a longer decay time constant and is used to measure lightning flashes over a longer period, while the fast-field antenna has a shorter decay time and captures rapid changes in the electric field from individual lightning strikes. The slow-field antenna operates in the 1 Hz to 100 kHz frequency range, whereas the fast-field antenna operates from 1 Hz to 3 MHz.

NASA's DC-8 flying laboratory passes Antarctica's tallest peak, Mount Vinson, on Oct. 22, 2012, during a flight over the continent to measure changes in the massive ice sheet and sea ice. Credit: NASA/Michael Studinger (Photography courtesy NASA Images)

Instrument Details

Magnetic/Electric
Earth Science > Atmosphere > Atmospheric Electricity > Electric Field
Earth Science > Atmosphere > Atmospheric Electricity
Earth Science > Atmosphere > Atmospheric Electricity > Lightning
Troposphere
Variable
N/A
1 Hz-100 kHz (slow), 1 Hz-3 MHz (fast)
Currently unavailble

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