Relation of anomalous atmospheric conditions to electric field variation

Phalagov, Yu. A.; Ippolitov, I. I.; Nagorskii, P. M.; Odintsov, S. L.; Panchenko, Mikhail V.; Смирнов, С. В.; Uzhegov, Victor N.

doi:10.1134/s1024856009010163

Cited by 5 publications

(1 citation statement)

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“…In the context of atmospheric electricity, initial interest in fires was related with lightning from fire clouds (Vonnegut et al 1995). It was found that the plumes of hot gas, moisture, and smoke formed by the fires originate anomalous lightning (Lang and Rutledge 2006) and disturb significantly the local PG (Phalagov et al 2009). This perturbation is caused by the action of two distinct factors (Gopalakrishnan et al 1996): (1) the atmospheric ions created by the burning flame increasing AEC and decreasing PG and (2) the smoke spread with the plume scavenge the atmospheric ions decreasing AEC and increasing PG.…”

Section: Introductionmentioning

confidence: 99%

Transport of the smoke plume from Chiado’s fire in Lisbon (Portugal) sensed by atmospheric electric field measurements

Conceição

Melgão

Silva

et al. 2015

Air Qual Atmos Health

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The Chiado's fire that affected the city centre of Lisbon (Portugal) occurred on 25th August 1988 and had a significant human and environmental impact. This fire was considered the most significant hazard to have occurred in Lisbon city centre after the major earthquake of 1755. A clear signature of this fire is found in the atmospheric electric field data recorded at Portela meteorological station about 8 km NE from the site where the fire started at Chiado. Measurements were made using a Benndorf electrograph with a probe at 1-m height. The atmospheric electric field reached 510 V/m when the wind direction was coming from SW to NE, favourable to the transport of the smoke plume from Chiado to Portela. Such observations agree with predictions using Hysplit air mass trajectory modelling and have been used to estimate the smoke concentration to be~0.4 mg/m 3 . It is demonstrated that atmospheric electric field measurements were therefore extremely sensitive to Chiado's fire. This result is of particular current interest in using networks of atmospheric electric field sensors to complement existing optical and meteorological observations for fire monitoring.

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Section: Introductionmentioning

confidence: 99%