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Stratospheric NO 2 at night from stellar spectra in the 440 Nm region
Author(s) -
Naudet J. P.,
Rigaud P.,
Huguenin D.
Publication year - 1980
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/gl007i009p00701
Subject(s) - stratosphere , spectral line , physics , spectrometer , range (aeronautics) , atmospheric sciences , astrophysics , environmental science , astronomy , optics , materials science , composite material
NO 2 was measured in the stratosphere at night by means of a balloon‐borne spectrometer, pointing at a bright rising star, in the 427 to 452 nm range. The vertical distribution of NO 2 was deduced using the tangent ray technique between 23 and 38 km. The concentration was (6±1.5)×10 9 mol.cm −3 at 25 km, passing through a minimum of (2±1)×10 9 mol.cm −3 at 29 km and rising again up to (4±0.8)×10 9 mol.cm −3 at 32 km.