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- 2018
基于正则化的地表反射特性参数反演方法
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Abstract:
区域和全球尺度下研究气候变化，需要准确描述大气边界层处下垫面地表的光反射特性。为此，提出基于正则化的约束反演方法，其核心在于正则化参数的选取。通过L曲线拐点位置的确定，求出最合适的正则化约束参数，以稳定陆表反射特性参数的定量反演。京津唐地区数值反演试验与熵减分析结果表明，可见光红通道和近红外通道的信息指数分别为11.682 2和10.072 6；基于L曲线的地物反射特性正则化反演前后，两个通道的平均信息指数增量分别为0.440 0和0.354 6，最大增量为2.467 2和2.290 5。L曲线正则化方法的优势在于其不依赖于地表参数的先验知识，可有效解决卫星观测信息不足时地表参数的反演问题
| [1] | Cui Shengcheng, Yang Shizhi, Qiao Yanli, et al. Retrieval of Clear-Sky Land Surface BRDF and Albedo Based on Discrepancy Principle and Regularization Method[J]. Geomatics and Information Science of Wuhan University, 2011, 36(4):498-503(崔生成, 杨世植, 乔延利, 等.基于偏差原则和正则化方法反演晴空地表BRDF和反照率[J]. 武汉大学学报·信息科学版, 2011,36(4):498-503) |
| [2] | Qin J, Yan G, Liu S, et al. Application of Ensemble Kalman Filter to Geophysical Parameters Retrieval in Remote Sensing:A Case Study of Kernel-Driven BRDF Model Inversion[J]. Science in China:Series D:Earth Sciences, 2006, 49(6):632-640 |
| [3] | Wang Kaicun, Wang Jiankai, Wang Pucai, et al. Inversion of Accuracy of MODIS Albedo over Beijing Urban Area and Its Algorithm Improvement[J]. Chinese Journal of Atmospheric Sciences, 2008, 32(1):67-74(王开存, 王建凯, 王普才, 等. 用MODIS反演北京城市地区地表反照率精度以及算法改进[J]. 大气科学, 2008, 32(1):67-74) |
| [4] | Cui Shengcheng, Yang Shizhi, Qiao Yanli, et al. Application of Regularized Filtering Technique to Retrieval of Land Surface Spectral Albedo[J]. Geomatics and Information Science of Wuhan University, 2012, 37(6):653-657(崔生成, 杨世植, 乔延利, 等. 正则化滤波在反演地表光谱反照率中的应用[J]. 武汉大学学报·信息科学版, 2012, 37(6):653-657) |
| [5] | Pokrovsky I, Pokrovsky O, Roujean J L. Land Surface Albedo Retrieval via Kernel-Based BRDF Mo-deling. Part I:Statistical Inversion Method and Mo-del Comparison[J]. Remote Sens Environ, 2002, 84:100-119 |
| [6] | Luo Y, Trishchenko A P, Latifovic R, et al. Surface Bidirectional Reflectance and Albedo Properties Derived Using a Land Cover-Based Approach with Moderate Resolution Imaging Spectroradiometer Observations[J]. J Geophys Res, 2005, 110:D01106, doi:10.1029l2004JD004741 |
| [7] | Roujean J L, Leroy M, Deschanps P Y. A Bidirectional Reflectance Model of the Earth's Surface for the Correction of Remote Sensing Data[J]. J Geophys Res, 1992,97:20455-20468 |
| [8] | Quaife T, Lewis P. Temporal Constraints on Linear BRF Model Parameters[J]. IEEE Tran Geosci Remote Sens, 2010, 48(5):2445-2450 |
| [9] | Tikhonov A. On the Solution of Incorrectly Stated Problems and a Method of Regularization[J]. Dokl Akad Nauk SSSR, 1963,151:501-504 |
| [10] | Li X, Gao F, Wang J, et al. A Priori Knowledge Accumulation and Its Application Linear BRDF Model Inversion[J]. J Geophys Res, 2001,106(D11):11925-11936 |
| [11] | Wang Yanfei, Ma Shiqian, Yang Hua, et al. On the Effective Inversion by Imposing a Priori Information for Retrieval of Land Surface Parameters[J]. Science in China:Series D Earth Sciences, 2009, 39(3):360-369(王彦飞, Ma Shiqian, 杨华, 等. 带先验约束的地表参数提取的有效反演方法[J]. 中国科学D辑:地球科学, 2009, 39(3):360-369) |
| [12] | Chen Aijun, Bian Lingen, Liu Yujie, et al. A New Way to Retrieve Surface Albedo over Cloudy Areas with MODIS Data and the Retrieval Experiment[J]. Chinese Journal of Atmospheric Sciences, 2007, 31(5):855-862(陈爱军, 卞林根, 刘玉洁, 等. MODIS反演多云地区地表反照率的一种新方法及其反演试验[J]. 大气科学, 2007, 31(5):855-862) |
| [13] | Cui S, Yang S, Qiao Y, et al. Adaptive Regularized Filtering for BRDF Model Inversion and Land Surface Albedo Retrieval Based on Spectrum Cutoff Technique[J]. Optik,2012,123:250-256 |
| [14] | Hansen P, O'Leary D. The Use of the L-Curve in the Regularization of Discrete Ill-Posed Problems[J]. SIAM J Sci Comput, 1993,14(6):1487-1503 |
| [15] | Cui S, Wang Z, Yang S. Parameterization of Land Surface Albedo[J]. Chin Opt Lett, 2014, 12(11):1-5 |
| [16] | Wang Y, Li X, Nashed Z, et al. Regularized Kernel-Based BRDF Model Inversion Method for Ill-Posed Land Surface Parameter Retrieval[J]. Remote Sens Environ, 2007,111:36-50 |
| [17] | Xiao Dengpan, Tao Fulu, Moiwo J P. Research Progress on Surface Albedo Under Global Change[J]. Advances in Earth Science, 2011, 26(11):1217-1224(肖登攀, 陶福禄, Moiwo J P.全球变化下地表反照率研究进展[J]. 地球科学进展, 2011, 26(11):1217-1224) |
| [18] | Liu Ronggao, Liu Yang, Liu Jiyuan. Advances in MODIS Scientific Data Processing[J]. Progress in Natural Science, 2009, 19(2):141-147(刘荣高, 刘洋, 刘纪远. MODIS科学数据处理进展[J]. 自然科学进展, 2009, 19(2):141-147) |
