Performance of WVSS-II hygrometers on the FAAM research aircraft
Performance of WVSS-II hygrometers on the FAAM research aircraft
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FAAM 研究飞机上 WVSS-II 湿度计的性能
DOI：
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
A. Woolley
中科院分区：
文献类型：
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作者：
A. Vance;S. Abel;R. Cotton;A. Woolley
抽象的。我们使用 2 年来在各种条件下执行的大约 100 次飞行的数据，比较了机载大气测量设施 (FAAM) BAe 146-301 研究飞机上安装的 5 个湿度计的性能。无云数据的批量比较表明，冷镜湿度计和从改进的罗斯蒙特入口馈送的 WVSS-II 之间具有良好的一致性，但从标准冲洗入口馈送的 WVSS-II 与其他仪器相比似乎读数过度，除非在较高湿度下。由于云的可变性，对多云条件下湿度计性能的统计评估存在问题，因此使用大量案例研究来研究湿度计在次优条件下的性能。研究发现，冲洗入口对液态水或固态水均不敏感，但罗斯蒙特入口对液态水非常敏感，而且还可能对冰敏感。在所有条件下，WVSS-II 的响应速度都比冷镜设备快得多，冲洗入口馈送的 WVSS-II 比连接到罗斯蒙特的设备更快。
Abstract. We compare the performance of five hygrometers fitted to the Facility for Airborne Atmospheric Measurement's (FAAM) BAe 146-301 research aircraft using data from approximately 100 flights executed over the course of 2 years under a wide range of conditions. Bulk comparison of cloud free data show good agreement between chilled mirror hygrometers and a WVSS-II fed from a modified Rosemount inlet, but that a WVSS-II fed from the standard flush inlet appears to over-read compared to the other instruments, except at higher humidities. Statistical assessment of hygrometer performance in cloudy conditions is problematic due to the variable nature of clouds, so a number of case studies are used instead to investigate the performance of the hygrometers in sub-optimal conditions. It is found that the flush inlet is not susceptible to either liquid or solid water but that the Rosemount inlet has a significant susceptibility to liquid water and may also be susceptible to ice. In all conditions the WVSS-II responds much more rapidly than the chilled mirror devices, with the flush inlet-fed WVSS-II being more rapid than that connected to the Rosemount.