Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Statistical Characteristics of Local Circulation Winds Observed using Climate Data in the Complex Terrain of Chilgok, Gyeongbuk

  • Ha-Young Kim (Department of Environmental Science, Keimyung University) ;
  • Soo-Jin Park (Department of Environmental Science, Keimyung University) ;
  • Hae-Dong Kim (Major in Global Environment, Faculty of Environment, College of Natural Sciences, Keimyung University)
  • Received : 2023.03.06
  • Accepted : 2023.04.05
  • Published : 2023.05.31
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Abstract

Climate data were obtained over an eight-year period (July 2013 to June 2021) using an automatic weather observation system (AWS) installed at the foot of Mt. Geumo in Chilgok, Gyeongbuk. Using climate data, the statistical and meteorological characteristics of the local circulation between the Nakdong River and Mt. Geumo were analyzed. This study is based on automatic weather observation system data for Dongyeong, along with comparative climate data from the Korea Meteorological Administration (Chilgok) and the Gumi meteorological observatory. Over the eight- years, mountain and valley winds have occurred 48 times a year on average, with the highest occurring in May and the weakest winds in June and December. When mountain winds occurred, the temperature in the nearby lowland region more strongly decreased than when valley winds blew. However, the potential to use mountain winds to improve urban thermal environments is limited because mountain winds occur infrequently in summer when a drop in nighttime temperature is required.

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Acknowledgement

This research was supported by the Bisa Research Grant of Keimyung University in 2022 (20220320).

References

  1. An, E. J., Kim, H. D., 2019, A Study on the correlation between the urban heat island phenomenon and high concentrations of ozone in Daegu, QBS, 38, 113-119. https://doi.org/10.22283/qbs.2019.38.2.113
  2. An, E. J., Kim, H. D., 2021, Characteristics of mountain and valley winds observed at Palgongsan mountain and their effects on reducing high temperatures in summer, QBS, 40, 77-82.
  3. Ichinose, T., Urano, A., Shimodozono, K., Hanaki, K., 1998, Impact analysis of three dimensional replacement of urban activity on urban thermal environment, "Kli-maanalyse fuer die Stadtplanung", Report of RCUSS, Kobe University, Kobe, 279-285.
  4. Kanou, M., Mikami, T., 2003, Characteristics of mountain winds around a valley mouth: a case study in the upper course of the Tama river, Geographical reports of Tokyo Metropolitan University, Department of Geography, Tokyo Metropolitan University, Tokyo, 1-14.
  5. Koo, H. S., Kwon, B. H., Kim, H. D., 2007, Observational study on the local wind of the Dalbi-valley located at Ap-mountain in Daegu, J. Environ. Sci. Int., 16, 73-79. https://doi.org/10.5322/JES.2007.16.1.073
  6. Lee, S. H., Kim, H. D., 2008, Effects of regional warming due to urbanization on daytime local circulations in a complex basin of the Daegu metropolitan area, Korea, J. Appl. Meteor. Climatol., 47, 1427-1441. https://doi.org/10.1175/JAMC1504.1
  7. Lee, S. H., Kim, H. D., 2010, Modification of nocturnal drainage flow due to urban surface heat flux, Asia-Pac. J. Atmos. Sci., 46, 453-465. https://doi.org/10.1007/s13143-010-0026-z
  8. Savijarvi, H., Liya, J., 2001, Local winds in a valley city, Bound.-Layer Meteor., 100, 301-319. https://doi.org/10.1023/A:1019215031007
  9. Song, B. G., Park, K. H., 2013, Air ventilation evaluation at nighttime for the construction of wind corridor in urban area, J. of the Korean Assoc. of Geogr. Inf. Stud., 16, 16-29. https://doi.org/10.11108/kagis.2013.16.2.016
  10. Zou, H., Zhou, L., Ma, S., Li, P., Wang, W., Li, A., Jia, J., Gao, D., 2008, Local wind system in the Rongbuk valley on the northern slope of Mt. Everest, Geophys. Res. Lett., 35, L13813.