The Distribution of Aircraft Icing Accretion in China—Preliminary Study

The icing environment is an important threat to aircraft flight safety. In this work, the icing index is calculated using linear interpolation and based on temperature and relative humidity (RH) curves obtained from radiosonde observations in China. The results show that: (1) there are obvious diffe...

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Bibliographic Details
Published in:Atmosphere 2020-08, Vol.11 (8), p.876
Main Authors: Wang, Jinhu, Xie, Binze, Cai, Jiahan
Format: Article
Language:English
Subjects:
Accretion
Accumulation
Aircraft
Aircraft accidents & safety
Aircraft icing
Aircraft safety
Altitude
aviation flight safety
China’s icing climatic region
Civil aviation
Distribution
Flight safety
Humidity
Ice
Ice accretion
Ice accumulation
Icing
icing index
Interpolation
Low altitude
Precipitation
Radiosondes
Rain
Rainfall
Relative humidity
Snow
Snow accumulation
Snowfall
Software
Summer rainfall
Temperature
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Summary:The icing environment is an important threat to aircraft flight safety. In this work, the icing index is calculated using linear interpolation and based on temperature and relative humidity (RH) curves obtained from radiosonde observations in China. The results show that: (1) there are obvious differences in icing index distribution in parameter over various climatic regions of China. The differences are reflected in duration, main altitude, and ice intensity. The reason for the differences is related to the temperature and humidity environment. (2) Before and after the summer rainfall process, there are obvious changes in the ice accretion index in the 4–6 km altitude area of Northeast China, and the areas with serious ice accretion are coincident with areas with large rainfall estimates. (3) In the process of snowfall in winter, the ground snow has an impact on the ice accumulation index in the east of China. When it is snowing, ice accumulation in low altitudes is serious. The results of this study offer a theoretical basis for prediction and early warning of aircraft icing.
ISSN:2073-4433
2073-4433
DOI:10.3390/atmos11080876