The D2/D1 sodium nightglow intensity ratio as a mesospheric probe

Details The D2/D1 sodium nightglow intensity ratio as a mesospheric probe The D2/D1 sodium nightglow intensity ratio as a mesospheric probe

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005spie.5979..289s&link_type=abstract

Remote Sensing of Clouds and the Atmosphere X. Edited by Schäfer, Klaus; Comerón, Adolfo T.; Slusser, James R.; Picard, Richard

Physics

Scientific paper

Intensity measurements of the two lines of the sodium nightglow, at 589.0 and 589.6 nm, show that their ratio is not constant. It is generally assumed that this ratio is fixed, with a value of I(589.0)/ I(589.6) = 2.0. In measurements made at a variety of sites, most often utilizing the echelle spectrographs at large telescopes, it is demonstrated that the ratio typically varies within the 1.3-1.8 range, with 1.6 being a common value. Because the nightglow emission is relatively strong, individual measurements are quite precise. Both the intensity ratio and the summed intensity fluctuate with a semi- annual oscillation. Laboratory spectra of the ratio show a similar variability of values, and the current hypothesis is that the ratio reflects the [O(3P)]/[O2] ratio of the environment, in the laboratory or in the mesosphere.

Affiliated with

Also associated with

No associations

Rating

The D2/D1 sodium nightglow intensity ratio as a mesospheric probe does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The D2/D1 sodium nightglow intensity ratio as a mesospheric probe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The D2/D1 sodium nightglow intensity ratio as a mesospheric probe will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1659027