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Retrieval of global atmospheric electrical activity at a polluted urban site

Latha, K. M., Bennett, A., Highwood, E. J. and Harrison, R. G. ORCID: (2008) Retrieval of global atmospheric electrical activity at a polluted urban site. Journal of Physics: Conference Series, 142. 012013. ISSN 1742-6588

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To link to this item DOI: 10.1088/1742-6596/142/1/012013


The atmospheric electrical Potential Gradient (PG) arises from global thunderstorm activity, but surface measurements of the atmospheric Potential Gradient (PG) are influenced by global thunderstorms and local aerosol concentration changes. The local aerosol change can be monitored independently, and in some cases the concentration changes are closely related to PG changes. For these circumstances, a general theory to remove the local aerosol influence on PG measurements has been developed. Continuous measurements of PG and aerosol mass concentration were made during 24–31 Dec, 2005 within an urban environment at Reading, UK. The average diurnal variation of PG showed a double diurnal cycle, with maxima in the early morning and evening hours. The aerosol concentration has similar double maxima. Removing the aerosol using from the PG and aerosol correlation returns a single diurnal cycle, suggestive of the more global PG diurnal cycle.

Item Type:Article
Divisions:Science > School of Mathematical, Physical and Computational Sciences > Department of Meteorology
ID Code:16412
Publisher:Institute of Physics

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