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A model for calculating the vertical distribution of the atmospheric electric potential in the exchange layer in a maritime clean atmosphere

Kulkarni, MN and Kamra, AK (2012) A model for calculating the vertical distribution of the atmospheric electric potential in the exchange layer in a maritime clean atmosphere. Advances in Space Research, 50 (9). pp. 1231-1240.

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Abstract

A theoretical model is developed for calculating the vertical distribution of atmospheric electric potential in exchange layer of maritime clean atmosphere. The transport of space charge in electrode layer acts as a convective generator in this model and plays a major role in determining potential distribution in vertical. Eddy diffusion is the main mechanism responsible for the distribution of space charge in vertical. Our results show that potential at a particular level increases with increase in the strength of eddy diffusion under similar conditions. A method is suggested to estimate columnar resistance, the ionospheric potential and the vertical atmospheric electric potential distribution in exchange layer from measurements of total air-earth current density and surface electric field made over oceans. The results are validated and found to be in very good agreement with the previous aircraft measurements. Different parameters involved in the proposed methodology can be determined either theoretically, as in the present work, or experimentally using the near surface atmospheric electrical measurements or using some other surface-based measurement technique such as LIDAR. A graphical relationship between the atmospheric eddy diffusion coefficient and height of exchange layer obtained from atmospheric electrical approach, is reported. © 2012 COSPAR.

Item Type: Article
Additional Information: Copyright of this article belongs to Elsevier.
Uncontrolled Keywords: Air-earth current density; Aircraft measurement; Atmospheric eddy; Columnar resistances; Eddy diffusions; Electric potential distribution; Electrical measurement; Electrode layers; Ionospheric potential; Maritime climate; Measurement techniques; Near-surface; Potential distributions; Surface electric fields; Surface-based; Theoretical models; Vertical distributions, Diffusion; Electric fields; Electric potential; Optical radar, Electric currents
Subjects: Meteorology and Climatology
Depositing User: IITM Library
Date Deposited: 18 Jan 2014 06:12
Last Modified: 18 Jan 2014 06:12
URI: http://moeseprints.incois.gov.in/id/eprint/437

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