Current NEXRAD Cannot Reliably Enable Safe Flight Around Heavy Weather
| Autor: | William R. Knecht |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
Meteorology business.industry 05 social sciences Aerospace Engineering Storm NEXRAD 050105 experimental psychology General aviation Computer Science Applications Education law.invention Current (stream) Weather system Closure (computer programming) law 0501 psychology and cognitive sciences Closest point Radar business 050107 human factors Applied Psychology Simulation |
| Zdroj: | The International Journal of Aviation Psychology. 26:46-61 |
| ISSN: | 1532-7108 1050-8414 |
| DOI: | 10.1080/10508414.2016.1234936 |
| Popis: | Objective: We wished to assess whether current-generation in-cockpit looping Next-Generation Radar (NEXRAD) can reliably enable safe flight around severe (“heavy”) convective weather.Background: Numerous studies suggest that estimating the closest point of approach (CPA) to heavy weather is difficult, and that current in-cockpit NEXRAD may be intrinsically inadequate for the task.Method: To investigate theoretically, we first examined the visual information present in looping NEXRAD. This predicted inherent task difficulty. Next, to investigate empirically, we developed a mathematical model of an “ideal storm,” generated a looping NEXRAD-type part-task simulation, and tested 21 general aviation (GA) pilots to measure effects of weather system depth (19 vs. 40 nm), and the opening and closing of gaps at various closure rates between cells (14, 7, 0, 7, 14 kt).Results: For the values tested, weather system depth had no significant effect on clearance from heavy weather (>40 dBZ reflectivity). Howeve... |
| Databáze: | OpenAIRE |
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