| Tropospheric NO2 Columns over Northeastern North America： Comparison of CMAQ Model Simulations with GOME Satellite Measurements |
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| 引用本文： | 石春娥,张宝宁.Tropospheric NO2 Columns over Northeastern North America： Comparison of CMAQ Model Simulations with GOME Satellite Measurements[J].大气科学进展,2008,25(1):59-71. |
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| 作者姓名： | 石春娥 张宝宁 |
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| 作者单位： | Anhui Institute of Meteorological Sciences Key Laboratory of Atmospheric Science and Satellite Remote Sensing，Department of Environmental Science and Engineering Hebei University of Science and Technology，Hefei 230031 Shijiazhuang 050018 |
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| 摘 要： | We present comparisons of the NO2 regional Chemical Transport Model （CTM） simulations over North-eastern North America during the time period from May to September, 1998 with hourly surface NO2 observations and the NO2 columns retrieved from the GOME （Global Ozone Monitoring Experiment） satellite instrument. The model calculations were performed using the Mesoscale Meteorological Model 5 （MM5）, Sparse Matrix Operator Kernal Emissions （SMOKE）, and Community Multiscale Air Quality （CMAQ） modeling systems, using the emission data from the National Emissions Inventory （NEI） databases of 1996 （U.S.） and 1995 （Canada）. The major objectives were to assess the performance of the CMAQ model and the accuracy of the emissions inventories as they affected the simulations of this important short-lived atmospheric species. The modeled （NcMAQ） and measured （NGOME） NO2 column amounts, as well as their temporal variations, agreed reasonably well. The absolute differences （NcMAQ-NGOME） across the domain were between ±3.0×10^15 molecules cm^-2, but they were less than ±1.0×10^15 molecules cm^-2 over the majority （80%） of the domain studied. The overall correlation coefficient between the measurements and the simulations was 0.75. The differences were mainly ascribed to a combination of inaccurate emission data for the CTM and the uncertainties in the GOME retrievals. Of these, the former were the more easily identifiable.
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| 关 键 词： | 大气科学 对流层 二氧化氮 北美 全球臭氧监测实验 |
| 文章编号： | 10.1007/s00376-008-0059-8 |
| 收稿时间： | 2006-10-22 |
| 修稿时间： | 2007-02-13 |
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