QBO and solar activity effects on temperatures in the mesopause region

Details QBO and solar activity effects on temperatures in the mesopause region QBO and solar activity effects on temperatures in the mesopause region

Mar 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jatp...52..165n&link_type=abstract

Journal of Atmospheric and Terrestrial Physics (ISSN 0021-9169), vol. 52, March 1990, p. 165-173.

Physics

15

Atmospheric Temperature, Mesopause, Solar Activity Effects, Solar Terrestrial Interactions, Statistical Correlation, Atmospheric Circulation, Hydroxyl Radicals, Optical Radar, Oscillations, Solar Flux

Scientific paper

This statistical correlation study is based on two upper-mesospheric temperature data sets for the region around 90 km, on the phase of the quasi-biennial oscillation (QBO) and on the solar 10.7-cm radiation. The temperatures are measurements from sounding experiments carried out between 1980 and 1988 at geographic latitudes between 50 and 70 deg N. An anticorrelation exists between the 10.7-cm flux and the temperatures. Two different types of significance tests were used to check the confidence level of the correlation. The anticorrelation is highly significant for latitudes around 50 deg N if the QBO is in its east phase and for the spring/summer temperatures. The anticorrelation is not significant for the QBO west phase and for fall/winter temperatures. For higher latitudes, around 79 deg N, no significant correlation was found.

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