Atmospheric Loadings,Concentrations and Visibility Associated with Sandstorms: Satellite and Meteorological Analysis |
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Authors: | Chung Y S Kim H S Park K H Jhun J G Chen S J |
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Institution: | (1) Korea-China Center for Atmos. Research, Chongwon, Choongbook, Korea (author for correspondence;(2) School of Earth and Environmental Sci., Seoul National University, Seoul, Korea;(3) China-Korea Center for Atmos. Res./Dept of Geophysics, Peking University, Beijing, China |
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Abstract: | This Korea-China study monitored the phenomena of sandstorms and significant dustfall (SD) from 1997 to 2000. The analysis of our data included ground measurements of dust concentration, visibility, satellite imagery, aircraft and lidar observations. In addition, an estimation of atmospheric loadings and a studyon the relationship between dust concentrations and visibilitywere carried out. The movement and invasion of dust clouds toKorea were clearly identified with meteorological and satellitedata. The increasing concentrations of TSP and PM10 concurredwell with the satellite information. From case studies, weestimated that atmospheric loadings of a dust cloud were over 1million ton and that the deposition over the Korean Peninsulawas in the range from 46 000 to 86 000 tons. For SD withvisibility of 3 km, we predict TSP 659 g m-3 and PM10 493 g m-3. We recommend the issuance of an SD Watch(advisory) and an SD Warning for the general public. |
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Keywords: | Asian dust atmospheric dust loadings duststorm watch and warning sand- and duststorms satellite analysis |
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