Tracking Hurricanes Using GPS Atmospheric Precipitable Water Vapor Field
Tracking Hurricanes Using GPS Atmospheric Precipitable Water Vapor Field
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DOI：
10.1007/1345_2020_100
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
Yohannes Getachew Ejigu;F. N. Teferle;A. Klos;J. Bogusz;A. Hunegnaw
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文献类型：
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作者：
Yohannes Getachew Ejigu;F. N. Teferle;A. Klos;J. Bogusz;A. Hunegnaw
热带气旋是最强大的恶劣天气事件之一，在它们袭击的地区产生毁灭性的社会经济和环境影响。因此，监测和跟踪热带气旋的到达时间和路径，对向公众和政府提供早期预警非常有价值。2018年，飓风佛罗伦萨袭击了美国东部，并提供了一个杰出的案例研究。我们采用全球定位系统（GPS）派生的可降水量（PWV）数据跟踪和调查的风暴发生的时空分布特征，使用密集的地面网络的永久GPS站。我们的研究结果表明，上升的GPS衍生PWV发生在佛罗伦萨的表现前几个小时。此外，我们比较了GPS导出的PWV含量的时间分布与降水值的天，当风暴出现在该地区的影响。这项研究将有助于在飓风监测和跟踪中，利用从一个密集的全球定位系统常设台站网络获得的全球定位系统水汽演变情况，对全球定位系统对流层补充产品进行定量评估。
Tropical cyclones are one of the most powerful severe weather events that produce devastating socioeconomic and environmental impacts in the areas they strike. Therefore, monitoring and tracking of the arrival times and path of the tropical cyclones are extremely valuable in providing early warning to the public and governments. Hurricane Florence struck the East cost of USA in 2018 and offers an outstanding case study. We employed Global Positioning System (GPS) derived precipitable water vapor (PWV) data to track and investigate the characteristics of storm occurrences in their spatial and temporal distribution using a dense ground network of permanent GPS stations. Our findings indicate that a rise in GPS-derived PWV occurred several hours before Florence’s manifestation. Also, we compared the temporal distribution of the GPS-derived PWV content with the precipitation value for days when the storm appeared in the area under influence. The study will contribute to quantitative assessment of the complementary GPS tropospheric products in hurricane monitoring and tracking using GPS-derived water vapor evolution from a dense network of permanent GPS stations.