Rocket study of 5577-Å O I Emission at night over the magnetic equator

An in situ profile of 5577-A night airglow emission in the 100-km region was obtained over the magnetic equator at Thumba, India. The height of maximum emission was at 102 ± 2 km, and the half thickness of the layer was 11 ± 2 km. Total emission from the rocket and the ground photometer was around 66 R. From the emission the profile of density of atomic oxygen in the 100-km region was determined and had a maximum value of 3.19 × 10 11 cm -3 at 102 km. Intensity contribution to 5577 A from the F region is much smaller than that expected. These results are compared with rocket results obtained at middle and high latitudes and with Ogo 6 results.

[1]  B. Guenther,et al.  Spatial and temporal behavior of atomic oxygen determined by Ogo 6 airglow observations , 1974 .

[2]  D. Offermann,et al.  Atomic Oxygen Densities in the Lower Thermosphere as Derived from In Situ 5577-A Night Airglow and Mass , 1973 .

[3]  B. Dandekar.  Atomic oxygen concentration from the [OI] 5577 Å line emission at the auroral zone latitude , 1972 .

[4]  R. Thomas,et al.  Analysis of Ogo 6 observations of the O I 5577-A tropical nightglow. , 1972 .

[5]  B. Dandekar,et al.  Atomic oxygen concentration from the measurement of the [OI] 5577 Å emission of the airglow☆ , 1971 .

[6]  L. Jacchia.  Revised static models of the thermosphere and exosphere with empirical temperature profiles , 1971 .

[7]  R. Young,et al.  Vacuum‐Ultraviolet Photolysis of N2O. IV. Deactivation of N(2D) , 1969 .

[8]  S. G. Tilford,et al.  Intensity profiles of the 6300-A and 5577-A O I lines in the night airglow , 1968 .

[9]  R. Greer,et al.  A rocket-borne photometric investigation of the oxygen lines at 5577 Å and 6300 Å, the sodium D-lines and the continuum at 5300 Å in the night airglow , 1967 .

[10]  T. VanZandt,et al.  F-region nightglow emissions of atomic oxygen: 1. Theory , 1966 .

[11]  C. Barth.  Three-body reactions. , 1964 .

[12]  C. L. Sanders,et al.  Use of a radioactivated light source for the absolute calibration of two-colour night airglow photometer , 1964 .

[13]  S. Chapman.  Some Phenomena of the Upper Atmosphere , 1951 .

[14]  R. Garstang.  Energy levels and transition probabilities in p4 and p4 configurations , 1951 .

[15]  S. Chapman.  Bakerian Lecture. Some Phenomena of the Upper Atmosphere , 1931 .

[16]  H. Schiff.  Neutral Atmospheric Chemistry — Introduction and Review , 1973 .

[17]  P. Kulkarni,et al.  6300 night airglow emission over the magnetic equator. , 1972 .

[18]  R. Young,et al.  Excitation of the auroral green line in the earth's nightglow , 1966 .

[19]  F. Allum,et al.  Rocket measurement of midlatitude airglow and particle precipitation , 1965 .

[20]  S. Silverman,et al.  Behavior of the 6300 O I line at Huancayo , 1961 .