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http://dx.doi.org/10.7780/kjrs.2010.26.4.373

Reflectivity Mosaic of Two Radars Using a Height-weighted Method  

Lee, Jung-Hoon (Department of Astronomy and Atmospheric Sciences, Kyungpook National University)
Jung, Sung-Hwa (Department of Astronomy and Atmospheric Sciences, Kyungpook National University)
Heo, Bok-Haeng (Meteorological Advancement Council, Korea Meteorological Administration)
Kim, Kyung-Eak (Department of Astronomy and Atmospheric Sciences, Kyungpook National University)
Publication Information
Korean Journal of Remote Sensing / v.26, no.4, 2010 , pp. 373-385 More about this Journal
Abstract
A new method to mosaic reflectivity over the overlapped coverage of two radars was developed. The method mosaics the radar reflectivity with weights after adjustment of reflectivity differences on overlapped coverage of neighboring two radars. Their weights are inverse proportion to the difference between the height of an interpolated reflectivity and the level of CAPPI (Constant Altitude PPI). The performance of this method was compared to different mosaic methods (Mosaics by maximum value, averaged value, nearest value and distance weighted value) using the reflectivity fields of a typhoon event observed by two radar. New method was better than any other methods either as a continuity and as a bias analysis of reflectivity at the boundaries in overlapped coverage by two radars.
Keywords
weather radar; reflectivity mosaic; height-weighted method; Precipitation; CAPPI;
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