Premium
Non‐LTE calculation of HCl Earthlimb emission and implication for detection of HCl in the atmosphere
Author(s) -
Kumer J. B.,
James T. C.
Publication year - 1982
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/gl009i008p00860
Subject(s) - radiance , atmosphere (unit) , environmental science , atmospheric sciences , scattering , tangent , remote sensing , physics , meteorology , geology , optics , geometry , mathematics
The contribution to the earthlimb radiance from the non‐LTE process of resonant scattering of sunlight in the 1‐0 band of HCl has been calculated for tangent altitudes from 20 to 90 km. The results show that this is a significant contribution to the radiance at altitudes as low as 20 km and becomes greater than the LTE contribution above 40 km. The possibility of detecting HCl at altitudes as high as 80 km is discussed.