Research Papers

Use of X-band radars to support the detection of in-flight icing hazards

[+] Author Affiliations
David J. Serke, Marcia K. Politovich

Research Applications Laboratory, NCAR - National Center for Atmospheric Research, 3450 Mitchell Lane, Boulder, CO 80301

Andrew L. Reehorst

Icing Branch, NASA Glenn Research Center, 21000 Brookpark Road, Cleveland, OH 44135

Andy Gaydos

Research Applications Laboratory, NCAR - National Center for Atmospheric Research, 3450 Mitchell Lane, Boulder, CO 80301

J. Appl. Remote Sens. 3(1), 033532 (May 21, 2009). doi:10.1117/1.3153335
History: Received January 7, 2009; Revised April 29, 2009; Accepted May 19, 2009; May 21, 2009; Online May 21, 2009
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Abstract

The NASA Icing Remote Sensing System was operated for the Alliance Icing Research Study II field program during the winter of 2003 around Montreal, Canada and around Cleveland, Ohio during the winter of 2005. Icing research aircraft flights from these field programs provided verification data on liquid water content, air temperature and also cloud particle imagery and distributions. The purpose of this work is to show that the NASA Icing Remote Sensing System X-band radar reflectivity profiles could be used beyond merely defining vertical cloud boundaries, by operationally deriving a qualitative small drop icing hazard warning flag. Several case studies are presented which depict a variety of synoptic weather scenarios. These cases demonstrate that X-band reflectivities below -10 dBZ and above the minimum detectable are uniquely indicative of a particle population dominated by small, liquid droplets. A discussion is included for each case on how an in-flight icing hazard flag from the radar reflectivity profile would improve the operational hazard detection system. Comparison of the NASA Icing Remote Sensing System's X-band radar data to a nearby similar X-band from McGill University is done to ensure data quality and consistency.

© 2009 Society of Photo-Optical Instrumentation Engineers

Topics

Radar ; X band

Citation

David J. Serke ; Marcia K. Politovich ; Andrew L. Reehorst and Andy Gaydos
"Use of X-band radars to support the detection of in-flight icing hazards", J. Appl. Remote Sens. 3(1), 033532 (May 21, 2009). ; http://dx.doi.org/10.1117/1.3153335


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