DOI: 10.1016/j.atmosres.2019.01.012
Scopus记录号: 2-s2.0-85059815025
论文题名: Analysis of fog at Xianyang Airport based on multi-source ground-based detection data
作者: Ming H. ; Wei M. ; Wang M. ; Gao L. ; Chen L. ; Wang X.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2019
卷: 220 起始页码: 34
结束页码: 45
语种: 英语
英文关键词: Fog
; Temperature and humidity profile
; Variation characteristics
; Wind profile
; Xianyang airport
Scopus关键词: Airports
; Atmospheric humidity
; Atmospheric structure
; Boundary layer flow
; Drops
; Inversion layers
; Microwave devices
; Visibility
; Wind
; Different heights
; Meteorological factors
; Microwave radiometers
; Temperature and humidities
; Temporal variation
; Variation characteristics
; Wind profiles
; Wind-profiling radar
; Fog
; accuracy assessment
; airport
; detection method
; fog
; ground-based measurement
; humidity
; point source
; temperature profile
; wind profile
; China
; Shaanxi
; Xianyang
英文摘要: In order to improve the accuracy of fog forecast at Xianyang Airport, microwave radiometer, wind profiling radar and other equipment are utilized to detect fog. With the long term detection data from the equipment mentioned above, this paper analyzes the altitudinal-temporal variation characteristics of wind, temperature, and relative humidity during fog weather. It also tallies up the variation characteristics of the three meteorological factors at different heights as visibility and time changes. The findings are listed as follows. During autumn and winter, fog usually appears between 22:00 BT and 13:00 BT next day at Xianyang Airport, with relatively stable atmospheric structure. During fog, when the height is below 300 m, the average relative humidity is >75%, and the average horizontal wind speed is <3 m/s, along with a weak downdraft. In September and October, there is mainly southwest wind at low levels during fog weather, the height of radiation inversion layer within 300 m. In November, December and January, it is mainly northeast wind at low levels during fog, with rather thick radiation inversion layer. When the visibility is 1500 m in mist, if the temperature drops by 3 °C and the relative humidity rises by 9% in September and October, the visibility decreases to <1000 m accordingly; if the temperature drops by 6 °C in November (or it drops 8 °C in December and January), the inversion layer thickens, the relative humidity increases by 15%, then the visibility reduces to <1000 m. These findings can provide scientific basis to improve the accuracy of fog forecast at Xianyang Airport. © 2019 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122307
Appears in Collections: 气候变化事实与影响
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作者单位: Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing, China; Urumqi Institute of Desert Meteorology, Chinese Meteorological Administration, Urumqi, China; The Northwest Regional Air Traffic Administration Bureau, CAAC (Civil Aviation Administration of China), Xi'an, China
Recommended Citation:
Ming H.,Wei M.,Wang M.,et al. Analysis of fog at Xianyang Airport based on multi-source ground-based detection data[J]. Atmospheric Research,2019-01-01,220