Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
권호 표지
DOI QR코드

DOI QR Code

Nocturnal Inversion Layer observed by Tethersonde and AWS System and its Relation to Air Pollution at Ulsan

Tethersonde와 기상탑 관측 자료를 이용한 울산지역 야간 역전에 따른 대기오염도 변화와의 관계

  • Lim Yun-Kyu (Department of Atmospheric Sciences, Pusan National University) ;
  • Kim Yoo-Keun (Department of Atmospheric Sciences, Pusan National University) ;
  • Oh In-Bo (Department of Atmospheric Sciences, Pusan National University) ;
  • Song Sang-Keun (Department of Atmospheric Sciences, Pusan National University)
  • Published : 2005.06.01
Download PDF
⟨ Previous Next ⟩

Abstract

This study presents the characteristics of nocturnal inversion layer and their effect on the concentration variations of surface air pollutants using tethersonde and automatic weather station (AWS, 2 layer tower) system in Ulsan during 2003, The method for the distinction of inversion intensity was decided based on the sum of nocturnal temperature gradient. As the results, there was a close correlation (correlation coefficient of 0,76) between the maximum inversion height obtained from tethersonde and the sum of nocturnal temperature gradient. The air pollutant concentration was also directly proportional to the inversion intensity. When the inversion intensity was strong in the nighttime, ozone $(O_3)$ concentration was lower, while nitrogen dioxide $(NO_2)$ concentration was higher. The carbon monoxide (CO) concentration was gradually higher according to the nocturnal inversion intensity, whereas sulfur dioxide $(SO_2)$ concentration was relatively constant. In addition, we found that there was no correlation between the inversion intensity and TSP concentration.

Keywords

References

  1. Hosler, C. R., 1961, Low level inversion frequency in the contiguous United States, Mon. Wea Rev., 89, 319-339 https://doi.org/10.1175/1520-0493(1961)089<0319:LIFITC>2.0.CO;2
  2. Liu, C. M., S. C. Liu and S. H. Shen, 1990, A study of Taipei ozone problem, Atmos. Environ., 24(6), 1641-1472
  3. Mantis, H. T., C. C. Pepapis, C. S. Zerefos and J. C. Ziomas, 1992, Assessment of the potential for photochemical air pollution in Athens: A comparison of emissions and air-pollutant levels in Athens with those in Los Angeles, J. Appl. Meteor., 31, 1467-1476 https://doi.org/10.1175/1520-0450(1992)031<1467:AOTPFP>2.0.CO;2
  4. 김유근, 문윤섭, 오인보, 황미경, 2002, 서울 및 부산지역에서 기온과 국지풍이 지표고농도 오존발생에 미치는 영향, 한국기상학회지, 38(4), 319-331
  5. 이태영, 1986, 역전층이 해륙풍 순환에 미치는 영향, 한국기상학회지, 22(2), 48-61
  6. 이지연, 이동인, 한영호, 옥곤, 1997, 기온 역전 발생에 따른 대기경계층에서의 O3, NO2 농도의 연직분포, 한국기상학회지, 33(2), 315-326
  7. Kondo, H., T. Mizuno, M. Hayashi, S. Yamamoto, H. Yoshikado and O. Yokayama, 1991, A tubulent inversion layer observed at Kasima, Tenki, 38(3), 151-156(in Japanese)
  8. 오인보, 2003, 대도시지역 고농도 오존발생의 기상학적 메카니즘: 관측자료 분석과 수치모델링 연구, 부산대학교 대학원 박사학위논문