Tropopause height and solar activity

Article English OPEN
RAJARAM, MITA ; SINGH, B. P. ; GUPTA, H. V. (2011)

The variations in tropopause height with sunspot activity for 11 Indian stations have been studied for the period 1960 to 1972. The annual mean tropopause heights were plotted against Zurich sunspot numbers. The plots show clear latitudinal dependence in height variations. We calculated the correlation coefficients between tropopause height and sunspot numbers for lags varying from 0 to 5 years. The correlation coefficients for lag = 0 and lag = 3 exhibit entirely different latitudinal dependence. The largest negative correlation for mid-latitudes and an insignificant correlation for equatorial regions is found with lag = 0; whereas, for a lag of 3 years, the largest negative correlation is seen in the equatorial region with insignificant correlation for mid latitudes. This study shows that in low latitudes both the particle and electromagnetic part of the solar radiation cause changes in atmospheric circulation. Differences in sign of correlation coefficients between Indian and American regions suggest strong longitudinal dependence of solar-meteorological relationships.DOI: 10.1111/j.2153-3490.1979.tb00933.x
  • References (12)
    12 references, page 1 of 2

    Agarwal, A. K., Rastogi, R. G., Nityananda, N. and Singh, B. P. 1978. The effect of IMF on short period fluctuations. Nature 272, 517-518.

    Bucha, V. 1976. Changes in the geomagnetic field and solar wind causes of climate and atmospheric circulation., Studia Geophys. Geod. 20, 346-365.

    Bucha, V. 1977. Geophysical events affecting changes of climate and weather. Studia Geophys. Geod. 21, 350- 359.

    Cole, H. P. 1975. An investigation of a possible relationship between the height of the low-altitude tropopause and the sunspot number. J.Atmos. Sci. 32,998- 1001.

    Domingo, V. 1976. Solar radiation variation and climate. Proceedings of the ESLAB Symposium on Atmospheric Physics from Spacelab. Frascati, Italy, 22-14 May, 1976, pp. 21-41. D. Reidel Publication.

    King, J. W., Slater, A. J., Stevens, A. D., Smith, P. A. and Willis, D. M. 1977. Large-amplitude standing planetary waves induced in the troposphere by the Sun.J . Atmos. Terr. Phys. 39, 1357-1367.

    Newton, H. W. and Milsom, A. S. 1954. The distribution of great and small geomagnetic storms in the sunspot cycle. J . Geophys. Res. 59,203-214.

    Ramkrishna, S. and Seshamani, R. 1973. The effect of solar activity on temperatures in the equatorial mesosphere. J.Atmos. Terr. Phys. 35, 1631-1641.

    Reddy, S.J. and Rao, K. R. 1977. Effect of solar flare on lower tropospheric temperature and pressure. Indian J. Radio Space Phys. 6,44-50.

    Schuurmans, C. J. E. and Oort, A. H. 1969. A statistical study of pressure changes in the troposphere and lower stratosphere after strong solar flares. Pugeoph 75,233-246.

  • Metrics
    No metrics available
Share - Bookmark