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CONCLUSION <br /> The goal of this study was to determine the time difference in initial detection of <br />new convective cell development between a C-band radar (Stanley) and the more <br />sensitive S-band radar (KMBX). This study was only conducted on days that seeding <br />occurred in the NDCMP. A complete dataset for both radars was available for the <br />summer of 1999, which was the focus period of the study. There were 24 days that had <br />coincident observations. In those days, a total of 52 cases of new cell development <br />were examined. The time each radar detected new cell development was recorded and <br />then were compared to each other to see if one radar detected new cell development <br />sooner than the other. <br /> Based on this study, it was found that the more sensitive KMBX S-band radar <br />detected new convective development, on average, eight minutes sooner than the <br />Stanley C-band radar. In other words, about one volume scan sooner. There were no <br />cases that the Stanley radar detected new development sooner than the KMBX radar. It <br />was either at the same time or later. There were some cases where attenuation on the <br />Stanley C-band radar caused a large time difference between the two radars. Also, in <br />real time operations, it is possible that new echo development might not be noticed <br />immediately because of the significant amount of ground clutter observed by the <br />KMBX radar. <br />18 <br />