The optimal retrieval of ocean color constituent concentrations based on the variational method  

作　　者：YU Hong FAN Zhe DU Hua-dong 

机构地区：[1]College of Meteorology and Oceanography, PLA University of Science and Technology [2]Meteorological Center of Air Force Command in Nanjing Military Region

出　　处：《Journal of Hydrodynamics》2013年第1期62-71,共10页水动力学研究与进展B辑（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(Grant No. 41105012);Startup Fund Scientific Research from the Institute of Meteorology, PLA University of Science and Technology(Grant No. 2009QX08)

摘　　要：In this paper, a new approach to the optimal retrieval of the ocean color based on the variational method is developed by setting up a rational target functional combining with the Broydor Fletcher, Goldfarb, Shanno （BFGS） optimal algorithm. The numerical tests and the exemplary retrievals are carried out and compared with the statistical retrievals and the optimal retrievals based on the genetic algorithm. The results show that this approach enjoys a higher accuracy as compared to the statistical method and a higher efficiency as compared to the genetic algorithm. The optimal retrieval method presented in this paper provides a new idea for the ocean color inversion and could also be used as a reference for the direct assimilation of the satellite data into the ecological models.In this paper, a new approach to the optimal retrieval of the ocean color based on the variational method is developed by setting up a rational target functional combining with the Broydor Fletcher, Goldfarb, Shanno （BFGS） optimal algorithm. The numerical tests and the exemplary retrievals are carried out and compared with the statistical retrievals and the optimal retrievals based on the genetic algorithm. The results show that this approach enjoys a higher accuracy as compared to the statistical method and a higher efficiency as compared to the genetic algorithm. The optimal retrieval method presented in this paper provides a new idea for the ocean color inversion and could also be used as a reference for the direct assimilation of the satellite data into the ecological models.

关 键 词：ocean color optimal retrieval variational method Broydor Fletcher Goldfarb Shanno （BFGS） algorithm 

分 类 号：P731[天文地球—海洋科学]