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ASMUWARA, a ground-based radiometer system for tropospheric monitoring

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ASMUWARA, the All-Sky MUlti WAvelength RAdiometer, is a new ground-based and automatically operating radiometer system designed for tropospheric monitoring. ASMUWARA has ten channels in the microwave and infrared range and is able to observe the sky in all directions with an angular resolution of 9°. No radome is used to allow an optimum view quality at all wavelengths. The purpose of ASMUWARA is to retrieve temperature and humidity profiles, maps of integrated water vapour and liquid water, and additional cloud properties. The construction and characteritics of ASMUWARA are described. Special emphasis is put on the calibration loads, the calibration method, and the correction of antenna beamwidth effects.

ASMUWARA, das All-Sky MUlti WAvelength RAdiometer, ist ein neues bodengestütztes und automatisches Radiometersystem zur Beobachtung der Troposphäre. ASMUWARA hat zehn Kanäle im Mikrowellenund Infrarotbereich und beobachtet den Himmel mit einer Winkelauflösung von 9° in beliebige Richtungen. Das Instrument hat kein Radom um optimale Messungen im ganzen spektralen Bereich zu machen. Der Zweck von ASMUWARA ist die Messung von Temperatur- und Feuchteprofilen, von Karten des integrierten Wasserdampfes und des integrierten Flüssigwassers sowie von weiteren Wolkenparametern. Der Aufbau von ASMUWARA und im Speziellen die Eichlasten, die Kalibrationsmethode und die Korrektur der durch die Antennenbreite verursachten Fehler werden beschrieben.
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Document Type: Research Article

Publication date: 2006-02-01

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  • Meteorologische Zeitschrift (originally founded in 1866) is the joint periodical of the meteorological societies of Austria, Germany and Switzerland. It accepts high-quality peer-reviewed manuscripts on all aspects of observational, theoretical and computational research out of the entire field of meteorology, including climatology. Meteorologische Zeitschrift represents a natural forum for the meteorological community of Central Europe and worldwide.
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