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Coyote unmanned aircraft system observations in Hurricane Edouard (2014)

机译:土狼无人机系统在爱德华飓风中的观测(2014年)

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Horizontal wind, temperature, and moisture observations are presented from two Coyote unmanned aircraft system (UAS) flights in the boundary layer of Hurricane Edouard (2014). The first flight sampled the meteorological conditions in the eye and eyewall at altitudes from 900 to 1500 m while Edouard was a major hurricane (105 kt) on 16 September 2014. The following day, a second Coyote sampled the inflow layer outside of the storm core at ~760 m altitude, when Edouard had weakened to an 80-kt hurricane. These flights represent the first deployments of a UAS from an airborne manned aircraft into a tropical cyclone. Comparisons between the Coyote data and the Lockheed WP-3D Orion (WP-3D) flight-level measurements and analyses constructed from dropsonde data are also provided. On 16 September 2014, the Coyote-measured horizontal wind speeds agree, on average, to within ~1 m s ??1 of the wind speeds observed by the WP-3D and reproduce the shape of the radial wind profile from the WP-3D measurements. For the inflow layer experiment on 17 September, the mean wind speeds from the Coyote and the dropsonde analysis differ by only 0.5 m s ??1 , while the Coyote captured increased variability (?? = 3.4 m s ??1 ) in the horizontal wind field compared to the dropsonde analysis (?? = 2.2 m s ??1 ) Thermodynamic data from the Coyote and dropsondes agree well for both flights, with average discrepancies of 0.4?°C and 0.0?°C for temperature and 0.7?°C and 1.3?°C for dew point temperature on 16 and 17 September, respectively.
机译:从飓风爱德华(2014)边界层的两次土狼无人飞机系统(UAS)飞行中获得了水平风,温度和湿度的观测结果。 2014年9月16日,第一次飞行对900至1500 m高度的眼和眼墙的气象条件进行了采样,而爱德华则是一次主要飓风(105 kt)。第二天,土狼对风暴核心外部的入流层进行了采样在海拔约760 m时,爱德华减弱到80 kt飓风。这些飞行代表了无人机系统从空中载人飞机到热带气旋的首次部署。还提供了土狼数据与洛克希德WP-3D猎户座(WP-3D)飞行水平测量值的比较,以及根据空投探空仪数据构建的分析结果。 2014年9月16日,土狼测得的水平风速平均在WP-3D观测到的风速的〜1 ms -1范围内,并从WP-3D测量结果再现了径向风廓线的形状。对于9月17日的入流层实验,来自土狼和探空仪分析的平均风速仅相差0.5 ms ?? 1,而土狼在水平风场中捕获的变化性更大(?? = 3.4 ms ?? 1)与Dropsonde分析相比(?? = 2.2 ms ?? 1)两次飞行均来自土狼和Dropsondes的热力学数据吻合良好,温度的平均差异为0.4?C和0.0?C,而温度的平均差异为0.7?C和1.3露点温度分别在9月16日和17日为°C。

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