气候变化领域集成服务门户(CCPortal): Analysis of fog at Xianyang Airport based on multi-source ground-based detection data

CCPortal

DOI	10.1016/j.atmosres.2019.01.012
	Analysis of fog at Xianyang Airport based on multi-source ground-based detection data
	Ming H.; Wei M.; Wang M.; Gao L.; Chen L.; Wang X.
发表日期	2019
ISSN	0169-8095
起始页码	34
结束页码	45
卷号	220
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.
英文关键词	Fog; Temperature and humidity profile; Variation characteristics; Wind profile; Xianyang airport
语种	英语
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
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162171
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
推荐引用方式 GB/T 7714	Ming H.,Wei M.,Wang M.,et al. Analysis of fog at Xianyang Airport based on multi-source ground-based detection data[J],2019,220.
APA	Ming H.,Wei M.,Wang M.,Gao L.,Chen L.,&Wang X..(2019).Analysis of fog at Xianyang Airport based on multi-source ground-based detection data.Atmospheric Research,220.
MLA	Ming H.,et al."Analysis of fog at Xianyang Airport based on multi-source ground-based detection data".Atmospheric Research 220(2019).