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Odd nitrogen formed by energetic electron precipitation as calculated from TIROS data
Author(s) -
Callis Linwood B.
Publication year - 1997
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 - 10.1029/97gl03276
Subject(s) - electron precipitation , southern hemisphere , precipitation , electron , nitrogen , atmospheric sciences , northern hemisphere , latitude , spectral line , physics , high latitude , electron spectrometer , environmental science , spacecraft , meteorology , magnetosphere , cathode ray , astronomy , nuclear physics , plasma , quantum mechanics
Daily odd nitrogen formation due to energetic electron precipitation has been calculated for 840101 through 841231. Electron energy spectra between 4.25 and 1050 keV were used as derived from TED and MEPED observations made aboard NOAA spacecraft. Results indicate the importance of electron precipitation to the middle atmospheric NO y budget between 70 and 111 km. The column NO y source for 42≤Z≤111 km and for invariant latitudes between 63° and 76° in both hemispheres is calculated to be ≈13 times that of the global source of NO y derived from N 2 O . This source is larger in the southern hemisphere and is dominated by electrons which deposit their energy above 80 km.