Affiliation:
1. College of Aviation Meteorology, Civil Aviation Flight University of China, Guanghan 618307, China
2. National Supercomputing Center in Chengdu, Chengdu 610213, China
Abstract
This study conducts a detailed 23-year analysis of Density Altitude (DA) at 34 major airports across China, utilizing Meteorological Aviation Routine Weather Report (METAR) datasets, and discovers significant regional DA variations due to the country’s diverse topography and climate. Central and eastern regions exhibit higher DA values because of lower atmospheric pressures at higher altitudes, while northeastern airports have lower DA values, attributed to colder temperatures and lower elevations. A crucial finding is the substantial impact of humidity on DA, particularly in the southern coastal regions, a factor often neglected in pilot training, highlighting the necessity to revise aviation education to include humidity’s impact on DA. The study advocates for a region-specific approach to Chinese aviation operations, tailored to local DA influences, and suggests strategic adjustments in flight planning and risk assessment to address these regional differences, enhancing aviation safety and efficiency.
Funder
Key Laboratory of Flight Techniques and Flight Safety, Civil Aviation Administration of China
Subject
Atmospheric Science,Environmental Science (miscellaneous)
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