ISSN 1000-0526
CN 11-2282/P
CN 11-2282/P
Archive > Volume 39 Issue 11 > 2013,39(11):1431-1436. DOI:10.7519/j.issn.1000-0526.2013.11.006 Prev Next
Preliminary Analyses on Application of Wind Profiler Radar Data to the Landing Process of Typhoon Saola
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Abstract:
To study the role of wind profiler radar (WPR) in the forecasting of typhoon process, this paper statistically analyzed the radar detection data of typhoon Saola when it landed Qinyu Town, Fujian Province during 2-4 August 2012. The results show that there is a significant improvement in data acquisition rate in the high level above 4 km by WPR during the landing process of typhoon Saola and the effective detection height of WPR is 4.8 km. Statistical analysis of SNR (signal to noise ratio) and vertical velocity data show that the typhoon Saola brings intermittent rain before and after the landfall, and the landfall of typhoon eye produces little or no rain. This result is further verified in the hourly precipitation analysis. Statistical analysis of horizontal wind speed data shows that the horizontal wind speed in effective detection height is about 25 m·s-1 before and after the landfall of the typhoon, while the horizontal wind speed of the typhoon eye is about 0 to 3 m·s-1 over the landing period. This statistical result is consistent with the physical process of typhoon Saola landing.
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