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      • 1997~2000년에 관측된 황사의 농도와 부하량 및 시정 : 위성과 기상 분석 Satellite and Meteorological Analysis

        정용승,김학성,박기현,전종갑,첸수젠 한국교원대학교 환경과학연구소 2001 환경연구논문집 Vol.- No.6

        This Korea-China study was to monitor the phenomena of yellow sand(YS) occurred during the period of 1997~2000. The analysis on observed data included ground measurements of dust concentration, visibility, satellite imagery, aircraft and lidar observations. In addition, an estimation of atmospheric loadings and study on the relationship between dust concentrations and visibility were carried out. The movement and invasion of YS clouds to Korea were clearly identified with meterological and satellite data. The increasing concentrations of TSP and PM10 agreed well with the satellite information. We define the YS episode with the following values: TSP ≥250, PM10 ≥190 ㎍m-3, and visibility 6.5 km or less. From case studies, we estimated that atmospheric loadings of a dust cloud were over 1 million ton and that the deposition over the Korean Peninsula was in the range of 46,000 and 86,000 ton. For the YS with visibility 3 km, we predict TSP 659 ㎍m-3, PM10 493 ㎍m-3. We recommend the issuance of the YS Watch (advisory) and the YS Warning for the general public. There is a need for the general use of dust collectors in the indoor environment to reduce YS concentrations in spring.

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