原文传递
A quantitative technique to estimate microburst wind shear hazard to aircraft
| 题名： | A quantitative technique to estimate microburst wind shear hazard to aircraft |
| 作者： | Byrd, Gregory P. |
| 关键词： | quantitative；micro；burst；imate；stim；craft；horizon；sensor；doppler；vertical |
| 摘要： | Low-altitude microburst wind shear encounters can significantly affect aircraft performance during approach or takeoff. Over the past 25 years, hazardous wind shear was a contributing factor in over two dozen commercial airline accidents in which there were over 500 fatalities. NASA, the FAA, and the National Center for Atmospheric Research were involved in the design and testing of various sensors to detect the hazard. Among the sensors being tested are the ground-based Terminal Doppler Weather Radar (TDWR) and airborne Doppler radar and LIDAR systems. While these sensor systems do measure horizontal wind shear, they do not adequately account for the vertical wind, which is a key component of the microburst hazard to the aircraft. A technique is defined to estimate aircraft hazard from the combined effects of horizontal and vertical winds, given only horizontal wind information. |
| 报告类型： | 科技报告 |
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