Journal of the Korean Association of Geographic Information Studies (한국지리정보학회지)

The Korean Association of Geographic Information Studies (한국지리정보학회)
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Analysis of Cold Air Flow Characteristics according to Urban Spatial Types to Construct a Wind Road - Focused on Urban Area of Changwon -

바람길 조성을 위한 도시공간유형별 찬공기 유동 특성 분석 - 창원시 도시지역을 중심으로 -

  • LEE, Su-Ah (Dept. of Environmental Engineering, Changwon National University) ;
  • SONG, Bong-Geun (Institute of Industrial Technology, Changwon National University) ;
  • PARK, Kyung-Hun (School of Civil, Environmental and Chemical Engineering, Changwon National University)
  • 이수아 (창원대학교 대학원 환경공학과) ;
  • 송봉근 (창원대학교 산업기술연구원) ;
  • 박경훈 (창원대학교 공과대학 토목환경화공융합공학부)
  • Received : 2022.02.14
  • Accepted : 2022.04.01
  • Published : 2022.06.30
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Abstract

This study analyzed the characteristics of cold air flow according to spatial types in urban areas of Changwon-si, Gyeongsangnam-do. The spatial types were classified by cluster analysis considering the land use map, building information, and topographic characteristics produced on the Changwon biotope map. The amount of cold air and wind speed were derived by KLAM_21 modeling. As a result, spatial types were classified into a total of 14 types considering the density and height of buildings, land use types, and topographic characteristics. Cold air flow was found to generate cold air in the valley of the forest area outside urban area, move through roads and open spaces, and accumulate in the low-lying national industrial complex, and then spread cold air throughout the urban areas. There was a lot of cold air flow in the tall building area, and the cold air accumulation was less in the slope and ridge areas. The results of this study were able to understand the characteristics of cold air flow according to building density, land use type, and topography, which will be usefully used as basic data for urban wind road construction to mitigate climate and improve air quality in urban areas.

본 연구는 경상남도 창원시 도시지역을 대상으로 공간유형에 따른 찬공기 유동 특성을 분석하였다. 공간유형은 창원시 도시생태현황지도의 토지이용현황도와 건물 정보, 지형 특성을 활용하여 군집분석을 통해 분류하였다. 찬공기 유동은 KLAM_21 모델링을 활용하여 시간의 경과에 따른 찬공기 양과 풍속으로 분석하였다. 그 결과, 공간유형은 건물의 밀집도와 높이, 토지이용 유형, 그리고 지형 특성인 평지, 계곡, 능선, 경사지가 고려되어 총 14개 유형으로 분류되었다. 찬공기 유동은 도시 외곽의 산림지역 계곡부에서 찬공기가 생성되어 도로와 평지를 통해 이동하여 저지대인 창원국가산업단지에 축적되기 시작하고, 이후 도시지역 전반에 찬공기가 확산되는 것으로 나타났다. 건물이 높은 지역은 찬공기의 유동이 많았고, 경사지와 능선부는 찬공기 축적이 적어 유동량이 상대적으로 작았다. 본 연구결과는 건물 밀집도와 토지이용 유형, 지형 형태에 따른 찬공기 유동 특성 파악이 가능하였고, 이는 도시지역의 기후 완화 및 대기질 개선을 위한 도시 바람길 조성의 기초자료로 유용하게 활용될 것이다.

Keywords

Acknowledgement

이 논문은 2021~2022년도 창원대학교 자율연구과제 연구비 지원으로 수행된 연구결과이며, 주저자의 2021년 한국지리정보학회 추계학술대회 발표논문 "KLAM_21 모델링 활용 공간유형에 따른 찬공기 유동 특성 분석 - 창원시 도시지역을 중심으로 -" 일부를 수정·보완한 것임

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