Validation of multi-angle imaging spectroradiometer aerosol products in China

J. Liu; X. Xia; Z. Li; P. Wang; M. Min; W. Hao; Y. Wang; J. Xin; X. Li; Y. Zheng; Z. Chen

doi:10.1111/j.1600-0889.2009.00450.x

Validation of multi-angle imaging spectroradiometer aerosol products in China

Tellus B: Chemical and Physical Meteorology

Volume 62 (2010): Issue 2

By: J. Liu, X. Xia, Z. Li, P. Wang, M. Min, W. Hao, Y. Wang, J. Xin, X. Li, Y. Zheng and Z. Chen

Open Access

|Jan 2010

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.

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DOI: https://doi.org/10.1111/j.1600-0889.2009.00450.x | Journal eISSN: 1600-0889

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Language: English

Page range: 117 - 124

Submitted on: Apr 8, 2009

Accepted on: Dec 15, 2009

Published on: Jan 1, 2010

Published by: Stockholm University Press

In partnership with: Paradigm Publishing Services

© 2010 J. Liu, X. Xia, Z. Li, P. Wang, M. Min, W. Hao, Y. Wang, J. Xin, X. Li, Y. Zheng, Z. Chen, published by Stockholm University Press
This work is licensed under the Creative Commons Attribution 4.0 License.

Volume 62 (2010): Issue 2