Response of redline dayglow emission under varying solar activity conditions

Details Response of redline dayglow emission under varying solar activity conditions Response of redline dayglow emission under varying solar activity conditions

Dec 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsa33b1765s&link_type=abstract

American Geophysical Union, Fall Meeting 2010, abstract #SA33B-1765

Physics

[0310] Atmospheric Composition And Structure / Airglow And Aurora

Scientific paper

A comprehensive model is developed to study the redline dayglow emission. This model includes all the possible source and loss mechanisms responsible for the production of redline emission. The Solar2000 EUV flux model has been incorporated quite successfully in the model. The model results are tested by comparing with the observations of Wind Imaging Interferometer (WINDII). It has been found that the model produces better agreement with the observed results in comparison to the earlier model studies. The present model is used to obtain peak emission rates during the period of 2001-2005 on a fixed date. A comparative study is presented between the results obtained from the empirical formula and the model. It has been found that the empirical formula produces low emission rates at high solar activity conditions in comparison to the model results and the agreement between the two is better during the low solar activity period. The possible reasons for the lower estimation of peak emission rate by the empirical formula during the peak activity conditions are discussed in this paper. The model calculations are used to construct the morphology of redline dayglow emission under equinox conditions between equator and 45oN latitude. The results of morphology of redline dayglow emission are presented on a fixed date as a function of F10.7 solar index. The intensity of redline dayglow emission is found to be saturated when F10.7 solar index is greater than 200.

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