Title :
A new 278 GHz ground-based radiometer for vertical profile sounding of ClO and O3 in the upper atmosphere
Author :
Hochschild, G. ; Krupa, R.
Author_Institution :
Inst. fur Meteorol. und Klimaforschung, Forschungszentrum Karlsruhe, Germany
Abstract :
This paper describes the new radiometer system operating in the 278 GHz range, which is intended for long term ground-based monitoring of the vertical profiles of chlorine monoxide and ozone in the stratosphere over the Arctic area. To improve the measurement of weak lines, in particular in view of their diurnal variation and to allow operation over a wider range of weather conditions, an advanced balancing technique has been implemented. Results of recent measurements during February and March 1996 at Kiruna, Sweden, are presented
Keywords :
air pollution measurement; atmospheric composition; atmospheric measuring apparatus; atmospheric techniques; chlorine compounds; free radicals; microwave spectrometers; millimetre wave measurement; millimetre wave spectroscopy; ozone; radiofrequency spectrometers; radiometers; radiometry; remote sensing; stratosphere; 278 GHz; Arctic area; ClO; EHF; Kiruna; O3; Sweden; advanced balancing technique; air pollution; atmosphere; chemical composition; diurnal variation; ground-based radiometer; millimetric radiometry; mm wave spactra; ozone; remote sensing; stratosphere; vertical profile; Atmosphere; Atmospheric measurements; Calibration; Cryogenics; Dielectric loss measurement; Frequency; Local oscillators; Optical amplifiers; Radiometry; Temperature;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1996. IGARSS '96. 'Remote Sensing for a Sustainable Future.', International
Conference_Location :
Lincoln, NE
Print_ISBN :
0-7803-3068-4
DOI :
10.1109/IGARSS.1996.516365
