Finescale Structure of a Snowstorm over the Northeastern United States: A First Look at High-Resolution HIAPER Cloud Radar Observations
Finescale Structure of a Snowstorm over the Northeastern United States: A First Look at High-Resolution HIAPER Cloud Radar Observations
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美国东北部暴风雪的精细结构：高分辨率 HIAPER 云雷达观测初探
DOI：
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发表时间：
2017
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通讯作者：
Andrew Janiszeski
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作者：
R. Rauber;S. Ellis;J. Vivekanandan;J. Stith;Wen;G. McFarquhar;Brian F. Jewett;Andrew Janiszeski
新研制的高性能机载环境研究仪器平台(HIAPER)云雷达是一种机载、W波段、双极化、多普勒研究雷达，安装在国家大气研究中心湾流-V HIAPER飞机的机翼下吊舱内。2015年2月2日，HCR在美国东北海岸的气旋上空进行了首个科考航行。在特拉华湾北端和缅因州班戈之间，连续飞行了6个小时，越过雨雪线，直接飞越马萨诸塞州波士顿，后者收到了超过16英寸的收入。在活动期间有大量的雪。HCR用0.7°光束记录了反射率、径向速度、光谱宽度和线性退偏率，从12,800米(42,000英尺)的飞行高度指向最低点。在飞行速度为200到275m的S−1飞机上，根据航程的不同，沿航迹的分辨率在20到200m之间。
AbstractThe newly developed High-Performance Instrumented Airborne Platform for Environmental Research (HIAPER) Cloud Radar (HCR) is an airborne, W-band, dual-polarization, Doppler research radar that fits within an underwing pod on the National Center for Atmospheric Research Gulfstream-V HIAPER aircraft. On 2 February 2015, the HCR was flown on its maiden research voyage over a cyclone along the Northeast coast of the United States. Six straight flight legs were flown over 6 h between the northern tip of Delaware Bay and Bangor, Maine, crossing the rain–snow line, and passing directly over Boston, Massachusetts, which received over 16 in. of snow during the event. The HCR, which recorded reflectivity, radial velocity, spectral width, and linear depolarization ratio with a 0.7° beam, was pointed at nadir from a flight altitude of 12,800 m (42,000 ft). The along-track resolution ranged between 20 and 200 m, depending on range, at aircraft speeds varying between 200 and 275 m s−1. The range resolution was ...