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Original Research Papers

Validation of multi-angle imaging spectroradiometer aerosol products in China

Authors:

J. Liu,

LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences; Public Weather Service Center, Chinese Meteorology Administration; College of Environment Science &Engineering, Nanjing University of Information Science & Technology, CN
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X. Xia,

LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences, CN
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Z. Li,

LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences, CN; Department of Atmospheric and Oceanic Science and Earth System Science Interdisciplinary Centre, University of Maryland, US; College of Environment Science &Engineering, Nanjing University of Information Science & Technology, CN
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P. Wang ,

LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences, CN
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M. Min,

LAGEO, Institute of Atmospheric Physics, Chinese Academy of Sciences; Graduate University of Chinese Academy of Sciences, CN
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W. Hao,

USDA Forest Service Fire Sciences Laboratory, US
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Y. Wang,

LAPC, Institute of Atmospheric Physics Chinese Academy of Sciences, CN
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J. Xin,

LAPC, Institute of Atmospheric Physics Chinese Academy of Sciences, CN
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X. Li,

National Satellite Meteorology Center, Chinese Meteorology Administration, CN
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Y. Zheng,

College of Environment Science &Engineering, Nanjing University of Information Science & Technology, CN
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Z. Chen

Public Weather Service Center, Chinese Meteorology Administration, CN
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Abstract

Based on AErosol RObotic NETwork and Chinese Sun Hazemeter Network data, the Multi-angle Imaging SpectroRadiometer (MISR) level 2 aerosol optical depth (AOD) products are evaluated in China. The MISR retrievals depict well the temporal aerosol trend in China with correlation coefficients exceeding 0.8 except for stations located in northeast China and at the Lanzhou site. In general, the MISR AOD retrievals agree well with ground-based observations for AOD 0.5. The retrievals are systematically underestimated for AOD > 0.5 in the east, southwest and northeast regions of China. Concerning surface types, the greatest underestimations occur in farmland and forest ecosystems. The largest and smallest biases are seen in spring and in summer, respectively. The systematic underestimation seems to stem from the use of too high single scattering albedos ∼0.96 which is significantly higher than those estimated from ground-based observations. Further improvements to the MISR aerosol algorithm, especially in the aerosol model, are recommended.

How to Cite: Liu, J., Xia, X., Li, Z., Wang, P., Min, M., Hao, W., Wang, Y., Xin, J., Li, X., Zheng, Y. and Chen, Z., 2010. Validation of multi-angle imaging spectroradiometer aerosol products in China. Tellus B: Chemical and Physical Meteorology, 62(2), pp.117–124. DOI: http://doi.org/10.1111/j.1600-0889.2009.00450.x
  Published on 01 Jan 2010
 Accepted on 15 Dec 2009            Submitted on 8 Apr 2009

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