Long-term simulations of the sulfur concentrations over the China, Japan and Korea: A model comparison study |
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Authors: | Cheol-Hee Kim Lim-Seok Chang Jeong-Soo Kim Fan Meng Mizuo Kajino Hiromasa Ueda Yuanhang Zhang Hye-Young Son Youjiang He Jun Xu Keiichi Sato Chang-Keun Song Soo-Jin Ban Tatsuya Sakurai Zhiwei Han Lei Duan Suk-Jo Lee Shang-Gyoo Shim Young Sunwoo Tae-Young Lee |
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Institution: | 1. Department of Atmospheric Sciences, Pusan National University, Busan, Korea 14. Department of Atmospheric Sciences, Pusan National University, San 30, Jangjeon-Dong, Geumjeong-Gu, Busan, 609-735, Korea 2. Air Quality Research Department, National Institute of Environmental Research, Incheon, Korea 3. Chinese Research Academy of Environmental Sciences, Beijing, China 4. Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Japan 5. Toyohashi Institute of Technology, Toyohashi, Japan 6. College of Environmental Sciences, Peking University, Beijing, China 7. Atmospheric Research Department, Asia Center for Air Pollution Research, Niigata, Japan 8. Japan NUS CO. LTD, Tokyo, Japan 9. Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China 10. Department of Environmental Science and Engineering, Tsinghua University, Beijing, China 11. Korea Institute of Science and Technology, Seoul, Korea 12. Department of Advanced Technology Fusion, Kunkuk University, Seoul, Korea 13. Department of Atmospheric Sciences, Yonsei University, Seoul, Korea
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Abstract: | Three comprehensive acid deposition models were used to simulate the sulfur concentrations over northeast Asia over the period covering entire year of 2002, and discussed the aggregated uncertainties and discrepancies of the three models. The participating models are from the countries participating in the project of Longrange Transboundary Air Pollutants in Northeast Asia (LTP): China, Japan and Korea. The Eulerian Model-3/CMAQ (by China), Regional Air Quality Model (RAQM, by Japan), and Comprehensive Acid Deposition Model (CADM, by Korea) were employed by each country with common emissions data established by the administrative agencies of China, Japan and Korea. The episodic simulation results between 1 to 15, March 2002 are also presented, during which aircraft measurements were carried out over the Yellow sea. The episodic results show both a wide short-term variability in simulations against measurements, and maximum concentration differences of 3~5 times among the three models, requiring that further attention before confidence among the three models can be claimed for short-term simulations. However, the year-long cumulative simulations showed almost the same general features, with lower aggregated uncertainties between the three models, produced by the long term integration over northeast Asia. |
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