Numerical Simulation of a Freezing-Rain Process in Beijing Capital International Airport and the Mechanism for Its Formation

Guijun LIU; Fei WANG; Han SHEN; Xiangyang FENG; Wei ZHANG

doi:10.3878/j.issn.1006-9585.2018.17051

Volume 23 Issue 2

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Guijun LIU, Fei WANG, Han SHEN, Xiangyang FENG, Wei ZHANG. Numerical Simulation of a Freezing-Rain Process in Beijing Capital International Airport and the Mechanism for Its Formation[J]. Climatic and Environmental Research, 2018, 23(2): 235-240. doi: 10.3878/j.issn.1006-9585.2018.17051

Citation:

Guijun LIU, Fei WANG, Han SHEN, Xiangyang FENG, Wei ZHANG. Numerical Simulation of a Freezing-Rain Process in Beijing Capital International Airport and the Mechanism for Its Formation[J]. Climatic and Environmental Research, 2018, 23(2): 235-240. doi: 10.3878/j.issn.1006-9585.2018.17051

Citation:

Guijun LIU, Fei WANG, Han SHEN, Xiangyang FENG, Wei ZHANG. Numerical Simulation of a Freezing-Rain Process in Beijing Capital International Airport and the Mechanism for Its Formation[J]. Climatic and Environmental Research, 2018, 23(2): 235-240. doi: 10.3878/j.issn.1006-9585.2018.17051

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Numerical Simulation of a Freezing-Rain Process in Beijing Capital International Airport and the Mechanism for Its Formation

doi: 10.3878/j.issn.1006-9585.2018.17051

Meteorological Center of Air Traffic Regulation of Civil Aviation in North China, Beijing 100621

Funds:

Science and Technology Project of Civil Aviation North China Air Traffic Administration 201405

Received Date: 2017-03-23
Available Online: 2017-06-22
Publish Date: 2018-03-20

Abstract

Abstract

In order to investigate the possible mechanism of freezing rain process, the WRF model (Weather Research and Forecasting) was used to simulate a freezing-rain process occurred on 31 Jan 2013 in the area of the Beijing Capital International Airport. The NECP reanalysis data, the Black Body Temperature (TBB) of FY-2E, the daily average cloud height data of FY-3A are used to verify the model simulation. Major conclusions are as follows:1) The cloud top temperature of the simulation is consistent with TBB of FY-2E. During the freezing rain process, the cloud top temperature varied between 0--6℃, and the simulated vertical distribution of the hydrometeors agree well with observations. According to the cloud top height derived from FY-3A observations, it is found that the cloud top in the freezing-rain process basically remained at around 3 km, and the clouds contained less microphysical solid contents. 2) Observed cloud top temperature and height and the simulation results show that this is a typical warm freezing rain process. This result indicates that the mechanism for the formation of freezing rain in northern China may not be single. Ice-crystal processes and warm-rain processes may simultaneously exist during the formation of freezing rain.
- Freezing-rain,
- warm-rain mechanism,
- WRF model,
- FY-2E data

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References(13)

References

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