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9 December 2015 An evaluation of the schemes of ocean surface albedo parameterization in shortwave radiation estimation
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Proceedings Volume 9808, International Conference on Intelligent Earth Observing and Applications 2015; 980809 (2015) https://doi.org/10.1117/12.2207426
Event: International Conference on Intelligent Earth Observing and Applications, 2015, Guilin, China
Abstract
The ocean surface albedo (OSA) is a deciding factor on ocean net surface shortwave radiation (ONSSR) estimation. Several OSA schemes have been proposed successively, but there is not a conclusion for the best OSA scheme of estimating the ONSSR. On the base of analyzing currently existing OSA parameterization, including Briegleb et al.(B), Taylor et al.(T), Hansen et al.(H), Jin et al.(J), Preisendorfer and Mobley(PM86), Feng’s scheme(F), this study discusses the difference of OSA’s impact on ONSSR estimation in condition of actual downward shortwave radiation(DSR). Then we discussed the necessity and applicability for the climate models to integrate the more complicated OSA scheme. It is concluded that the SZA and the wind speed are the two most significant effect factor to broadband OSA, thus the different OSA parameterizations varies violently in the regions of both high latitudes and strong winds. The OSA schemes can lead the ONSSR results difference of the order of 20 w m-2. The Taylor’s scheme shows the best estimate, and Feng’s result just following Taylor’s. However, the accuracy of the estimated instantaneous OSA changes at different local time. Jin’s scheme has the best performance generally at noon and in the afternoon, and PM86’s is the best of all in the morning, which indicate that the more complicated OSA schemes reflect the temporal variation of OWA better than the simple ones.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hailin Niu, Xiaotong Zhang, Qiang Liu, Youbin Feng, Xiuhong Li, Jialin Zhang, and Erli Cai "An evaluation of the schemes of ocean surface albedo parameterization in shortwave radiation estimation", Proc. SPIE 9808, International Conference on Intelligent Earth Observing and Applications 2015, 980809 (9 December 2015); https://doi.org/10.1117/12.2207426
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