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KMID : 1024520220310040329
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Journal of the Environmental Sciences
2022 Volume.31 No. 4 p.329 ~ p.339
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Characteristics of Road Weather Elements and Surface Information Change under the Influence of Synoptic High-Pressure Patterns in
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Kim Baek-Jo
Nam Hyoung-Gu
Kim Seon-Jeong
Kim Geon-Tae
Kim Ji-Wan
Lee Yong-Hee
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Abstract
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Better understanding the mechanism of black ice occurrence on the road in winter is necessary to reduce the socio-economic damage it causes. In this study, intensive observations of road weather elements and surface information under the influence of synoptic high-pressure patterns (22nd December, 2020 and 29th January, and 25th February, 2021) were carried out using a mobile observation vehicle. We found that temperature and road surface temperature change is significantly influenced by observation time, altitude and structure of the road, surrounding terrain, and traffic volume, especially in tunnels and bridges. In addition, even if the spatial distribution of temperature and road surface temperature for the entire observation route is similar, there is a difference between air and road surface temperatures due to the influence of current weather conditions. The observed road temperature, air temperature and air pressure in Nongong Bridge were significantly different to other fixed road weather observation points.
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KEYWORD
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Black ice, Road weather elements, Road surface information, Synoptic high-pressure patterns
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