DOI: 10.1002/qj.49709841609. Charge separation due to riming in an electric field

Charge separation due to riming in an electric field

10.1002/qj.49709841609

Crossref journal-article

Wiley

Quarterly Journal of the Royal Meteorological Society (311)

Abstract

AbstractIce pellets were grown by accretion of supercooled drops, 20–100 μm diameter, at temperatures between −5 and −15°C in a small wind tunnel at an air speed of about 10 ms−1. An electric field of about 50–150 kV m−1 could be applied at the surface of the pellet. The pellet, and induction rings upstream and downstream of the pellet, were connected to electrometers and analysing circuits of sufficient sensitivity and speed to measure, correlate and display individual charging events. Charged particles entering the apparatus could be excluded from analysis by the upstream induction ring. The downstream ring was used to identify charged particles originating at the pellet. Significant charge separation occurred only in the presence of an electric field, and was consistent with charging by electrical induction. Charges between 2 and 30 fC (1 fC = 10−15 Coulomb = 3.10−6 e.s.u.), depending on drop size, were observed at a rate of about one to ten events per 1,000 accreted drops. Evidence suggesting that these charging events are the result of some drops colliding with the pellet at grazing incidence is described. This process seems adequate to account for the generation of charge in thunderclouds.

Bibliography

Aufdermaur, A. N., & Johnson, D. A. (1972). Charge separation due to riming in an electric field. Quarterly Journal of the Royal Meteorological Society, 98(416), 369â382. Portico.

Authors 2

A. N. Aufdermaur (first)
D. A. Johnson (additional)

References 17 Referenced 55

10.1038/209464a0
{'key': 'e_1_2_1_3_1', 'first-page': '1287', 'article-title': 'Zur Influenztheorie der Niederschlagselektrizitat', 'volume': '14', 'author': 'Elster J.', 'year': '1913', 'journal-title': 'Phys. Z.'} / Phys. Z. / Zur Influenztheorie der Niederschlagselektrizitat by Elster J. (1913)
Jeans J. H.1923The mathematical theory of electricity and magnetism (fourth edition) Cambridge.
10.1002/qj.49709440204
Krasnagorskaya N. V.andSedunov Yu. S.1961‘Induction method of measurements of the charges of separate particles ’Izv. Ser. Geof. pp.775–785.
10.1098/rspa.1961.0052
10.1098/rspa.1962.0068
10.1002/qj.49709440006
{'key': 'e_1_2_1_10_1', 'first-page': '550', 'volume-title': 'The physics of clouds', 'author': 'Mason B. J.', 'year': '1971'} / The physics of clouds by Mason B. J. (1971)
10.1088/0950-7671/40/5/318
10.1002/qj.49708636806
10.1175/1520-0477(1970)051<0474:COICIC>2.0.CO;2
10.1175/1520-0469(1967)024<0601:TROPII>2.0.CO;2
10.1029/JB073i020p06415
10.1175/1520-0469(1970)027<0463:TEOPGO>2.0.CO;2
10.1029/JC076i012p02836
10.1103/PhysRev.78.254

Dates

Type	When
Created	18 years, 6 months ago (Feb. 2, 2007, 6:38 p.m.)
Deposited	1 year, 9 months ago (Nov. 4, 2023, 12:03 p.m.)
Indexed	1 year, 1 month ago (July 10, 2024, 1:54 p.m.)
Issued	53 years, 5 months ago (April 1, 1972)
Published	53 years, 5 months ago (April 1, 1972)
Published Online	18 years, 8 months ago (Dec. 14, 2006)
Published Print	53 years, 5 months ago (April 1, 1972)

Funders 0

None

BibTeX

@article{Aufdermaur_1972, title={Charge separation due to riming in an electric field}, volume={98}, ISSN={1477-870X}, url={http://dx.doi.org/10.1002/qj.49709841609}, DOI={10.1002/qj.49709841609}, number={416}, journal={Quarterly Journal of the Royal Meteorological Society}, publisher={Wiley}, author={Aufdermaur, A. N. and Johnson, D. A.}, year={1972}, month=apr, pages={369–382} }

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