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首页> 外文期刊>Proceedings of the IEEE >Airborne scatterometers: investigating ocean backscatter under low- and high-wind conditions
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Airborne scatterometers: investigating ocean backscatter under low- and high-wind conditions

机译：机载散射仪：研究低风和高风条件下的海洋反向散射

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摘要

Attempting to understand and predict weather on a local and global basis has challenged both the scientific and engineering communities. One key parameter in understanding the weather is the ocean surface wind vector because of its role in the energy exchange at the air-sea surface. scatterometers, radars that measure the reflectivity of a target offer a tool with which to remotely monitor these winds from tower-, aircraft-, and satellite-based platforms. This paper introduces three current airborne scatterometer systems, and presents data collected by these instruments under low-, moderate-, and high-wind conditions. The paper focuses on airborne scatterometers because of their ability to resolve submesoscale variations in wind fields. Discrepancies between existing theory and the observations are noted and the concerns in measuring low-wind speeds discussed. Finally, the application of using this technology for estimating the surface-wind vector during a hurricane is demonstrated.
机译：试图在本地和全球范围内理解和预测天气已经给科学和工程界带来了挑战。理解天气的一个关键参数是海面风向矢量，因为它在海海面能量交换中发挥了作用。散射仪，测量目标反射率的雷达提供了一种工具，可用于从塔台，飞机和卫星平台远程监视这些风。本文介绍了三种当前的机载散射仪系统，并介绍了这些仪器在低风，中风和高风条件下收集的数据。本文着重于机载散射仪，因为它们能够解决风场中的亚中尺度变化。记录了现有理论与观测值之间的差异，并讨论了测量低风速时的担忧。最后，演示了使用该技术估算飓风期间的表面风矢量的应用。

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