Open AccessStratospheric and mesospheric temperatures and solar activity
Author(s) -
K. Mohanakumar,
S. Dev Anarayanan
Publication year - 1984
Publication title -
mausam
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.243
H-Index - 12
ISSN - 0252-9416
DOI - 10.54302/mausam.v35i1.1935
Subject(s) - stratosphere , mesosphere , atmospheric sciences , flux (metallurgy) , environmental science , atmosphere (unit) , correlation coefficient , solar cycle , physics , meteorology , solar wind , materials science , mathematics , statistics , quantum mechanics , magnetic field , metallurgy
The response of the stratospheric and mesospheric mean temperatures to the variations m 10.7 cm solar radio flux during a 11-year solar cycle has been investigated. This involves the correlation and regression studies between the annual mean 10.7 cm solar radio flux and the annually averaged temperatures for the two regions of the atmosphere, over Thumba (8 deg. N, 77 deg. E), India, during the period 1970-1980. A highly significant positive correlation (0.94) exists between these two parameters in the mesosphere. The correlation coefficient ( -0.28) in the stratosphere is insignificant. The calculated regression coefficients of -0.006 deg. C/unit flux and + 0.096 deg. C/unit flux for the stratosphere and mesosphere, respectively, point out clearly that the 10.7 cm solar radio flux influences strongly only in the mesosphere over the station studied, which supports the earlier findings by Ramakrishna and Seshamani ( 1973) based on one year data.