Relative population of OH X 2Π levels

Kvifte, G.

doi:10.1016/0032-0633(61)90091-5

Cited by 6 publications

(4 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…the calculated intensities in the Av = 4 and 5 sequences are not in agreernent with the observed ones [Kvifte, 1961;Krassovsky et ai., 1961] , and various additional reaction schenies for OH* production have been suggested by Krassovsky [19711. These uncertainties iii the excitation mechanism and quenching rates make it difficult to interpret the observations in teniis of the chemistry and dynaniics of the niiddie atniosphere.…”

mentioning

confidence: 68%

“…is the rapid process with TR9 = 3.3 rns given by Mies [1974] and v = S. The large increase of f 5 in CASE 1 compared to that of CASE 2 is due to the iarger loss rate by O cornpared to the relaxation rates by 02 and P1 2 . The results for the data by Kvifte [1961] and Krassovsky et a]. [1961] are aiso shown in Figure 8(b), in which oniy CASE 2 is shown.…”

Section: Discijssion (I) Vibrational Population Nymentioning

confidence: 93%

“…Chamberlain and Smith [1959] caiculated the excitation rates required to produce the observed OH intensities and found excitation rates roughly equal from v = 9 to v = 3. Later on, Kvifte [1961] reported approximately the sarne result. Recalculation of the excitation rates has been performed…”

Section: * Production Processesmentioning

confidence: 93%

“…The vertical lines show the range of the experimental error. Also shown are values calculated from the data byKvifte [1961] andKrassovsky et ai. [1961].…”

mentioning

confidence: 99%

See 3 more Smart Citations

Simultaneous measurements of OH(9,4), (8,3), (7,2), (6,2) and (5,1) bands in the airglow

Takahashi¹,

Batista²

1981

J. Geophys. Res.

View full text Add to dashboard Cite

Band intensities and the rotational temperatures for the OH(9,4), (8,3), (7,2), (6,2) and (5,1) bands have been measured by means of a multichannel tilting filter photometer at Cachoeira Paulista (22.7°S, 45.0°W), Brazil. It is observed that the nocturnal variations of the five bands show good correlation between them but that there are small differences in the amplitudes of the variations between the bands from the upper vibrational levels and those from the lower levels. Studies of the cross correlation between the band intensities show that the nocturnal variations of the upper vibrational bands lead those of the lower levels. Vibrational populations and initial excitation rates for each vibrational level are calculated. The results show an increase of the initial excitation rate in the v=5 and v=6 levels. The different features of the intensity variations and the excitation rates of the lower vibrational levels suggest the existence of the mechanism HO2 + O → OH* + O2, capable of exciting OH to the v=5 and v=6 levels, in addition to the principal mechanism, assumed to be the reaction H + O3 → OH* + O2. The rotational temperatures derived from the ratios between the Q and R branches show good agreement between the different bands, indicating a high degree of rotational relaxation by thermal collisions.

show abstract

mentioning

confidence: 68%

Section: Discijssion (I) Vibrational Population Nymentioning

confidence: 93%

Section: * Production Processesmentioning

confidence: 93%

“…The vertical lines show the range of the experimental error. Also shown are values calculated from the data byKvifte [1961] andKrassovsky et ai. [1961].…”

mentioning

confidence: 99%

See 2 more Smart Citations