Diurnal and seasonal variations of space charge, electric field and cloud condensation nuclei in the lowest layer of the atmosphere

Article English OPEN

Diurnal and seasonal variations of space charge, vertical electric field and cloud condensation nuclei in the lowest layers of the atmosphere during winter, pre-monsoon, monsoon and post-monsoon seasons were studied. The curve showing the diurnal variation of space charge exhibited a double oscillation corresponding to that of the electric field during winter and pre-monsoon seasons. Similar features are absent during monsoon and post-monsoon seasons. During pre-monsoon the semi-diurnal components of space charge and electric field are in phase while in winter the semi-diurnal component of space charge occurs 1 h ahead of the electric field component. The mean values and diurnal ranges of both space charge and electric field are high during winter/pre-monsoon and are low during monsoon/post-monsoon seasons. The diurnal range of temperature and concentration of cloud condensation nuclei are positively correlated with space charge and the electric field. The pre-sunrise minimum in the electric field is associated with the characteristics of the F-region of the ionosphere rather than with the ground sunrise time. The variations in the F2 layer critical frequency (f0F2) are reflected in the diurnal and ter-diurnal components of the surface electric field. The results of the present study support the hypothesis that the increase in the electrosphere potential could be the source of the atmospheric electric sunrise effect (Muir, 1975).DOI: 10.1111/j.2153-3490.1980.tb00950.x
  • References (22)
    22 references, page 1 of 3

    Bhartendu, 1969. The atmospheric electric potential gradients varition at land stations. Arch. Met. Geophys. Bioklim. ( A ) 18,345-363.

    Bittencourt, J. A. 1976. Tropical F-region winds from 01-1356A and 01-6300A emmissions, Part 2, Analysis of OgO-4 data. J. Geophys. Res. 81, 3786-3789.

    Bricard, J. 1965. Action of radioactivity end of pollution upon parameters of atmospheric electricity. In Problems of atmospheric and space electricity (ed. S . C. Coroniti). New York: Elsevier Publishing Co., 82-117.

    Chisnell, R. F., Latham, J., Ryder, P. and Stromberg, I. M. 1977. The electrical structure of an inversion. Quart. J . R. Met. SOC.IO3,625-63 1.

    Chalmers, J. A. 1967. In Atmospheric electricity, 2nd ed. New York: Pergamon Press, 5 15 pp.

    Cobb, E. W. 1978. Balloon measurements of air-earth current density at the south pole before and after solar flare. Preprints of the Corlference on Cloud Physics and Atmospheric Electricity. July 3I-August 4 , 1978, Issaquah, Washington. Boston: American Meteor. SOC.,552-554.

    Imyanitov, I. M. and Chubarina, E. V. 1967. Electricity of the free atmosphere. Jerusalem: Israel Program for Scientific Translations, 21 1 pp.

    Israel, H. 1973. Atmospheric electricity, Vol. 11. Jerusalem: Israel Program for Scientific Tthslations, 796 pp.

    Israelsson, S. 1978. On the conception 'Fair weather condition' in atmospheric electricity. Pure and Appl. Geophys. 116, 149-158.

    Israelsson, S. and Oluwafemi, C. 1975. Power and cross-power spectral studies of electric parameters under fair weather conditions in the atmospheric surface layer. Boundary Layer Meteorology 9,21-22.

  • Metrics
    No metrics available
Share - Bookmark