Open AccessHyperspectral imaging differential optical absorption spectroscopy
Author(s) -
F. Q.,
Pinhua Xie,
Klaus-Peter Heue,
Cheng Liu,
Fumin Peng,
W. Q. Liu
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.6018
Subject(s) - differential optical absorption spectroscopy , hyperspectral imaging , imaging spectrometer , trace gas , optics , imaging spectroscopy , spectrometer , spectroscopy , absorption (acoustics) , remote sensing , materials science , spectral imaging , atmosphere (unit) , full spectral imaging , chemical imaging , absorption spectroscopy , environmental science , physics , geology , quantum mechanics , meteorology , thermodynamics
The technique of passive differential optical absorption spectroscopy (DOAS) is based on fingerprint absorption of probed gas species, which enables simultaneous monitoring of a variety of pollutants found in the atmosphere using scattering light as light source. We describe an optical remote-sensing instrument which is based on imaging spectrometer that permits spatially resolved mapping of atmospheric trace gases by passive DOAS method. The applications of one spatial dimensional measurement of gas cell and imaging of the nitrogen dioxide over city main road were also reported in this paper. With scattered sunlight as the light source, the system based on imaging spectrometer simultaneously acquiring spectral information in one spatial dimension, the second spatial dimension is scanned by a moving mirror.