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Retrieval of thermospheric atomic oxygen, nitrogen and temperature from the 732 NM emission measured by the ISO on ATLAS 1
Author(s) -
Fennelly Judy A.,
Torr Douglas. G.,
Torr Marsha R.,
Richards Phillip G.,
Yung SoPo
Publication year - 1993
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/93gl00615
Subject(s) - thermosphere , atomic oxygen , nitrogen , atlas (anatomy) , environmental science , observatory , atmospheric sciences , oxygen , physics , materials science , astrophysics , geology , geophysics , ionosphere , paleontology , quantum mechanics
The Imaging Spectrometric Observatory (ISO) was a part of the ATLAS 1 Mission flown on the shuttle Atlantis from March 24 to April 2, 1992. During limb scanning operations, the ISO measured the O + ( 2 P) ion emission at 732 nm. We have used a numerical inversion technique to retrieve thermospheric atomic oxygen, molecular nitrogen and temperature profiles. These preliminary results indicate a lower thermospheric temperature cooler than that predicted by MSIS for the solar conditions during the mission. Although the densities agree at low altitudes, the reduced scale height produces O and N 2 densities 25% lower than the MSIS at 300 km.