Publication Abstracts
Li et al. 2009
Li, Z., X. Zhao, R. Kahn, , L. Remer, K.-H. Lee, M. Wang, I. Laszlo, T. Nakajima, and H. Maring, 2009: Uncertainties in satellite remote sensing of aerosols and impact on monitoring its long-term trend: a review and perspective. Ann. Geophys., 27, 2755-2770, doi:10.5194/angeo-27-2755-2009.
As a result of increasing attention paid to aerosols in climate studies, numerous global satellite aerosol products have been generated. Aerosol parameters and underlining physical processes are now incorporated in many general circulation models (GCMs) in order to account for their direct and indirect effects on the earth's climate, through their interactions with the energy and water cycles. There exists, however, an outstanding problem that these satellite products have substantial discrepancies, that must be lowered substantially for narrowing the range of the estimates of aerosol's climate effects. In this paper, numerous key uncertain factors in the retrieval of aerosol optical depth (AOD) are articulated for some widely used and relatively long satellite aerosol products including the AVHRR, TOMS, MODIS, MISR, and SeaWiFS. We systematically review the algorithms developed for these sensors in terms of four key elements that influence the quality of passive satellite aerosol retrieval: calibration, cloud screening, classification of aerosol types, and surface effects. To gain further insights into these uncertain factors, the NOAA AVHRR data are employed to conduct various tests, which help estimate the ranges of uncertainties incurred by each of the factors. At the end, recommendations are made to cope with these issues and to produce a consistent and unified aerosol database of high quality for both environment monitoring and climate studies.
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BibTeX Citation
@article{li09500o,
author={Li, Z. and Zhao, X. and Kahn, R. and Mishchenko, M. and Remer, L. and Lee, K.-H. and Wang, M. and Laszlo, I. and Nakajima, T. and Maring, H.},
title={Uncertainties in satellite remote sensing of aerosols and impact on monitoring its long-term trend: a review and perspective},
year={2009},
journal={Annales Geophysicae},
volume={27},
pages={2755--2770},
doi={10.5194/angeo-27-2755-2009},
}
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RIS Citation
TY - JOUR ID - li09500o AU - Li, Z. AU - Zhao, X. AU - Kahn, R. AU - Mishchenko, M. AU - Remer, L. AU - Lee, K.-H. AU - Wang, M. AU - Laszlo, I. AU - Nakajima, T. AU - Maring, H. PY - 2009 TI - Uncertainties in satellite remote sensing of aerosols and impact on monitoring its long-term trend: a review and perspective JA - Ann. Geophys. JO - Annales Geophysicae VL - 27 SP - 2755 EP - 2770 DO - 10.5194/angeo-27-2755-2009 ER -
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