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A Study on Nocturnal Inversion at Urban Area in Winter  

Zheng, Hai-Yan (Department of Landscape Architecture, Sungkyunkwan University)
Lee, Kyoo-Seock (Department of Landscape Architecture, Sungkyunkwan University)
Publication Information
Journal of the Korean Society of Environmental Restoration Technology / v.13, no.1, 2010 , pp. 40-46 More about this Journal
Abstract
In urban area, inversion layer prevents air pollutants from being dispersed. To determine nocturnal inversion characteristics at SookMyung Girls' High School near high-rise residential commercial complex buildings in Seoul, air temperature and humidity data were observed at 10minute interval from December 1st, 2007 to May 2nd, 2008. Temperature-Humidity (T-H) sensors were installed at SMG (SookMyung_Ground) and SMR (SookMyung_Roof), and then these two data were compared, analyzed and examined to illustrate air temperature differences of SMG and SMR. After the analysis, the maximum nocturnal inversion was observed by $3.3^{\circ}C$ at 18:10 on December 26th 2007, at that time the weather condition was clear and weak wind. Nocturnal inversions began 2-3 hours before sunset and it reached maximum inversion just after sunset and continued through nighttime until sunrise or 1-2 hours after sunrise. In terms of seasonal variation nocturnal inversions occurred dominantly in March and April rather than winter season.
Keywords
Nocturnal inversion; Urban area; Winter;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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