Abstract
The German Aerospace Center (DLR) Oberpaffenhofen/Germany operates a high resolution Fourier-Transform-Spectrometer (Bruker IFS 120 HR). The photomectric characterzied instrument was primarily used for precision measurements of trace gases in the laboratory (spectral resolution ≥ 0.001 cm−1). The presented extension allows emission and absorption measurements in the atmosphere. Compared to absorption measurements emission measurements are independent of extraterrestrial sources (sun, moon), thus, making the instrument more versatile. Our instrument is not intended to be used for operational atmospheric measurements. It will mainly be used for developing new data products and methods, exploiting the synergy from absorption/emission measurements, laboratory spectroscopy an FT instrumentation expertise. In the paper the instrumental setup is shown and first measurements are presented.
© 1999 Optical Society of America
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