窥探风暴

加入我们的科学爱好者社区!

图片来源:NASA。

通常伴随热带风暴的云层,常常遮蔽了预报员眼中潜在的危险发展,现在变得清晰多了。借助美国宇航局(NASA)的两颗轨道卫星,科学家们现在可以看穿云层,深入风暴内部,寻找飓风形成的明显迹象。

与大多数只能观测风暴表面的气象卫星不同,这些风暴“间谍”配备了能够穿透云层的微波传感器。其中一颗名为QuickSCAT的卫星,每天对90%的无冰海洋进行调查,使用所谓的雷达散射仪来测量表面风速和风向。例如,在右侧的QuickSCAT图像中,紫色和蓝色区域表示风速较慢,粉色和黄色区域表示风速较高。热带降雨测量任务(TRMM)卫星收集降雨和海面温度数据。


关于支持科学新闻报道

如果您喜欢这篇文章,请考虑通过以下方式支持我们屡获殊荣的新闻报道: 订阅。通过购买订阅,您将帮助确保未来能够继续推出关于塑造我们当今世界的发现和想法的具有影响力的报道。


根据美国宇航局(NASA)和美国国家海洋和大气管理局(NOAA)科学家进行的一项新研究,1999年的QuickSCAT数据可用于提前一到三天识别潜在的飓风,早于国家飓风中心发布的预警。今年早些时候发表的一项研究表明,QuickSCAT和TRMM数据的结合可以帮助预测飓风的具体情况。“当飓风伴随着强风和暴雨时,尤其具有破坏性,”美国宇航局喷气推进实验室的刘文 Timothy 观察到。“QuickSCAT和TRMM为我们提供了唯一的机会来观察风雨在登陆前的相互作用,并帮助我们理解和预测飓风。”

Kate Wong is an award-winning science writer and senior editor at 大众科学 focused on evolution, ecology, anthropology, archaeology, paleontology and animal behavior. She is fascinated by human origins, which she has covered for more than 25 years. Recently she has become obsessed with birds. Her reporting has taken her to caves in France and Croatia that Neandertals once called home, to the shores of Kenya's Lake Turkana in search of the oldest stone tools in the world, to Madagascar on an expedition to unearth ancient mammals and dinosaurs, to the icy waters of Antarctica, where humpback whales feast on krill, and on a "Big Day" race around the state of Connecticut to find as many bird species as possible in 24 hours. Kate is co-author, with Donald Johanson, of Lucy's Legacy: The Quest for Human Origins. She holds a bachelor of science degree in biological anthropology and zoology from the University of Michigan. Follow Wong on X (formerly Twitter) @katewong

More by Kate Wong
© . All rights reserved.