A Comparison of Tornado Warning Lead Times with and without NEXRAD Doppler Radar
A Comparison of Tornado Warning Lead Times with and without NEXRAD Doppler Radar
复制标题
使用和不使用 NEXRAD 多普勒雷达的龙卷风警报提前时间比较
DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
P. Ray
中科院分区：
文献类型：
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作者：
P. Bieringer;P. Ray
NEXRAD（下一代天气雷达）WSR-88 D（天气监视雷达-1988多普勒）雷达网络的安装已经进行了三年多。对这些雷达和国家气象局办公室的相关变化如何影响龙卷风警报进行了评估。龙卷风警报统计被用来评估安装WSR-88 D后在警报准备时间和探测方面的改进。为了消除警报数据集的偏差，还考虑了基于每天第一次龙卷风事件的统计数据。对这些雷达预警能力的早期评估表明，在过去五年中，某些地点的雷达预警能力有所提高。
Abstract The installation of the network of NEXRAD (Next Generation Weather Radar) WSR-88D (Weather Surveillance Radar—1988 Doppler) radars has been an ongoing process for more than three years. An assessment is made on how these radars and related changes at National Weather Service Offices have impacted the warning of tornadoes. Tornado warning statistics were employed to evaluate the improvements in warning lead times and detection after the installation of the WSR-88D. In an effort to remove a bias from the warning dataset, the statistics based on the first tornado event of each day were also considered. This early evaluation of the warning capability of these radars indicates an improvement at selected sites over the previous five years.