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Monitoring Mongolia Gobi dust transport using OMI data

Monitoring Mongolia Gobi dust transport using OMI data
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摘要 The characteristics of long-distance dust transport from Asia to the United States over the Pacific Ocean are statistically analyzed using OMI AI (Ozone Monitoring Instrument Aerosol Index) data during 2005-007. The results show that there is a high correla- tion of At (the correlation coefficients are as high as 0.83 in March, 0.62 in April and 054 in May) between the Mongolia Gobi Desert and the west coast region of the United States (40°-50°N, 120°- 130°W), indicating a strong source-receptor area relationship. Through calculating the lag correlation coefficient of the dust propagation time, we determined that the dust propagation lime fi'om the Mongolia Gobi Desert to the west coast of the United States is about 6-7 days at the 99% confidence level. The characteristics of long-distance dust transport from Asia to the United States over the Pacific Ocean are statistically analyzed using OMI AI (Ozone Monitoring Instrument Aerosol Index) data during 2005-007. The results show that there is a high correla- tion of At (the correlation coefficients are as high as 0.83 in March, 0.62 in April and 054 in May) between the Mongolia Gobi Desert and the west coast region of the United States (40°-50°N, 120°- 130°W), indicating a strong source-receptor area relationship. Through calculating the lag correlation coefficient of the dust propagation time, we determined that the dust propagation lime fi'om the Mongolia Gobi Desert to the west coast of the United States is about 6-7 days at the 99% confidence level.
出处 《Research in Cold and Arid Regions》 2012年第5期446-451,共6页 寒旱区科学(英文版)
基金 funded by the Project 12ZB020 of the Education Department of Sichuan Province
关键词 dust transport Total Ozone Mapping Spectrometer (TOMS) OMI data dust transport Total Ozone Mapping Spectrometer (TOMS) OMI data
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