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Study on Variation of Local Atmospheric Circulation Due to Road Development in Mountain Area  

Hwang, Soo-Jin (Department of Earth Science, Pusan National University)
Seo, Kwang-Soo (Department of Earth Science, Pusan National University)
Lee, Soon-Hwan (Center for Asia Monsoon and Climate Environment Research, Chosun University)
Publication Information
Journal of the Korean earth science society / v.25, no.2, 2004 , pp. 94-108 More about this Journal
Abstract
In order to clarify the efficiency of ground level change in Ice-valley on atmospheric circulation, numerical experiment was carried out. The circulations over the slope in North and South are different due to the topography and short wave radiation in Ice-valley. Therefore the circulations in both side are asymmetric and the asymmetric circulations are kept on at 1800 LST. A small difference of the atmospheric circulations formation is made due to the road construction at night. The reason may be the weakness of sensible heat flux from the road and other factors except that the sensible heat is not a principal factor in road construction. The construction of road is associated with growing of sensible heat from the road surface. For this reason, in case of daytime, ascending wind in north slope is more stronger with the road than that without road. The maximum wind speed becomes 4.67 m/s after road construction. And the position of the road is also an important factor in estimation of mesoscale circulation in mountainous area.
Keywords
mesoscale circulation; numerical model; Ice-valley; valley wind; road construction;
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Times Cited By KSCI : 1  (Citation Analysis)
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