DOI QR코드

DOI QR Code

최근 37년간 우리나라 주요도시의 고온일을 대상으로 한 상대습도의 경년변화

Long-term Relative Humidity Changes on High Temperature Days of Major Cities in Korea for the Recent 37 Years

  • 박명희 (국립수산과학원 수산해양종합정보과) ;
  • 이준수 (국립수산과학원 수산해양종합정보과) ;
  • 서영상 (국립수산과학원 수산해양종합정보과) ;
  • 한인성 (국립수산과학원 수산해양종합정보과) ;
  • 배헌균 (계명대학교 지구환경학과) ;
  • 김해동 (계명대학교 지구환경학과)
  • Park, Myung-Hee (Fishery and Ocen Information Division, National Fisheries Research and Development Institute) ;
  • Lee, Joon-Soo (Fishery and Ocen Information Division, National Fisheries Research and Development Institute) ;
  • Suh, Young-Sang (Fishery and Ocen Information Division, National Fisheries Research and Development Institute) ;
  • Han, In-Seng (Fishery and Ocen Information Division, National Fisheries Research and Development Institute) ;
  • Hae, Hyun-Gun (The Department of Global Environment, Keimyung University) ;
  • Kim, Hae-Dong (The Department of Global Environment, Keimyung University)
  • 투고 : 2013.05.28
  • 심사 : 2013.08.26
  • 발행 : 2013.12.31

초록

The study selected 10 regions among major Korean cities. Then the study classified the yearly change of relative humidity of those regions for 37 years based on 1996 (from 1974 to 2011) aimed at high temperature days, and examined them by stage regarding daily maximum temperature. For large cities and small cities, in general relative humidity had been likely to increase at high temperatures of $30^{\circ}C$ or over before 1996, whereas it has decreased since 1996. For suburban areas, relative humidity had been prone to diminish before 1996, whereas it has been likely to either increase since 1996 or rarely some of the cities have not shown any change. The increasing tendency of relative humidity before 1996 in large cities and small cities is believed to be because of an increase of the latent heat of vaporization by the supply of steam from cooling towers established in downtown areas. Meanwhile, the decreasing tendency from 1996 is concluded to be caused by the change from counter-current circular cooling towers, which produce a great quantity of steam including arsenic acid, to cross-flow cooling towers, which produce hardly any steam containing arsenic acid. This change was in accordance with the modification and pursuit of an urban planning law that ordered cooling towers that had been installed on rooftops be installed in the basement of buildings in consideration of a "Green network creation" project by the Ministry of Environment, urban beautification, concerns since 1996 over building collapses, and according to an argument that steam containing arsenic acid could be harmful to human health owing to chemicals contained in the water in the cooling tower in summer.

키워드

참고문헌

  1. Ackerman, B., 1987, Climatology of Chicago area urbanrural differences in humidity, J. Climate Appl. Meteor., 26, 427-430. https://doi.org/10.1175/1520-0450(1987)026<0427:COCAUR>2.0.CO;2
  2. Adebayo, Y. R., 1991, Day-time effects of urbanization on relative humidity and vapour pressure in a tropical city, Theor. Appl. Climatol., 43, 17-30. https://doi.org/10.1007/BF00865039
  3. Chandler, T. J., 1967, Absolute and relative humidities in towns. Bull. Amer. Meteor. Soc., 48, 394-399.
  4. Deosthali,V., 2000, Impact of rapid urban growth on heat and moisture islands in Pune city, India, Atmos. Environ., 34, 2745-2754. https://doi.org/10.1016/S1352-2310(99)00370-2
  5. Fujibe, F., 1988, Weekday-weekend differences of urban climates Part3:Temperature and wind fields around Tokyo and Osaka, J.Meteor.Soc. Japan, 66, 377-385.
  6. Fujibe, F., 2002, Long-term humidity change on hot days in the central part of Tokyo, J. Meteor. Soc. Japan, 49(6), 473-476.
  7. Hage, K. D., 1975, Urban-rural humidity differences, J. Appl. Meteor., 14, 1277-1283. https://doi.org/10.1175/1520-0450(1975)014<1277:URHD>2.0.CO;2
  8. Jauregui, E., Tejeda, A., 1997, Urban-rural humidity contrasts in Mexico City, Int. J. Climatol., 17, 187-196. https://doi.org/10.1002/(SICI)1097-0088(199702)17:2<187::AID-JOC114>3.0.CO;2-P
  9. Kanda M., Takayanagi Y., Yokoyama H., Moriwaki. R., 1997, Field observation of the heat balance in an urban area, J. Japan Soc. Hydrol & Water Resour, 10(4), 329-336. https://doi.org/10.3178/jjshwr.10.329
  10. Kim, H. D., 2003, Study on the long-term change of urban climate in Daegu, J. of the Environmental Sciences, 12(7), 697-704. https://doi.org/10.5322/JES.2003.12.7.697
  11. Kim, M. K., Kang, I. S., Kwak, C. H., 1999, The estimation of urban warming amounts due to urbanization in Korea for the recent 40 years, J. Korean Meteor. Soc., 35(1), 118-126.
  12. Kim, J. B., Kang, S. M., Doe, G. Y., Lee, H. S., 2001, A study on climate change in Busan area, Proceedings on the Korea institute of ecological architecture and environment conferences, 1, 271-276.
  13. Omoto, Y., Hamotani, K., Um, H. H., 1994, Recent Changes in Trends of humidity of japanese cities, J. Japan Soc. Hydrol & Water Resour, 7(2), 106-113. https://doi.org/10.3178/jjshwr.7.2_106
  14. Park, M. H., Kim, H. D., 2007, A study on the characteristics of urban dryness in Daegu, J. of the Environmental Sciences, 16(2), 171-178. https://doi.org/10.5322/JES.2007.16.2.171
  15. Park, M. H., Kim, H. D., 2011, Evaluation of mitigation effect of Upo-swamp on the air temperature variation with nighttime cooling rate, J. of the Environmental Sciences, 20(3), 309-319. https://doi.org/10.5322/JES.2011.20.3.309
  16. Um, H. H., Ha, K. J., Moon, S. E., 1997, The Urban Effect on the Change of Relative Humidity in Seoul, 33(1), J. Korean Meteor. Soc., 127-135.