典型文献
A multi-scale high-order recursive filter approach for the sea ice concentration analysis
文献摘要：
With the development and deployment of observation systems in the ocean, more precise passive and activemicrowave data are becoming available for the weather forecasting and the climate monitoring. Due to the compli-cated variability of the sea ice concentration (SIC) in the marginal ice zone and the scarcity of high-precision sea ice data, how to use less data to accurately reconstruct the sea ice field has become an urgent problem to be solved. A reconstruction method for gridding observations using the variational optimization technique, called the multi-scale high-order recursive filter (MHRF), which is a combination of Van Vliet fourth-order recursive filter and the three-dimensional variational (3D-VAR) analysis, has been designed in this study to reproduce the refined structure of sea ice field. Compared with the existing spatial multi-scale first-order recursive filter (SMRF) in which left and right filter iterative processes are executed many times, the MHRF scheme only executes the same filter process once to reduce the analysis errors caused by multiple filters and improve the filter precision. Furthermore, the series connected transfer function in the high-order recursive filter is equivalently replaced by the paralleled one, which can carry out the independent filter process in every direction in order to improve the filter efficiency. Experimental results demonstrate that this method possesses a good potential in extracting the observation information to successfully reconstruct the SIC field in computational efficiency.
文献关键词：
中图分类号：
作者姓名：
Lu Yang;Dong Li;Xuefeng Zhang;Hongli Fu;Kexiu Liu
作者机构：
School of Marine Science and Technology,Tianjin University,Tianjin 300072,China;Key Laboratory of Marine Environmental Information Technology,National Marine Data and Information Service,Ministry of Natural Resources,Tianjin 300171,China
文献出处：
引用格式：
[1]Lu Yang;Dong Li;Xuefeng Zhang;Hongli Fu;Kexiu Liu-.A multi-scale high-order recursive filter approach for the sea ice concentration analysis)[J].海洋学报（英文版）,2022(02):103-115
A类：
activemicrowave,gridding,MHRF,Vliet,SMRF,executes
B类：
scale,high,order,recursive,approach,sea,ice,concentration,analysis,With,development,deployment,systems,ocean,precise,passive,data,becoming,available,weather,forecasting,climate,monitoring,Due,compli,cated,variability,SIC,marginal,zone,scarcity,precision,how,less,accurately,field,has,become,urgent,problem,solved,reconstruction,method,observations,using,variational,optimization,technique,called,which,combination,Van,fourth,three,dimensional,VAR,been,designed,this,study,reproduce,refined,structure,Compared,existing,spatial,first,left,right,iterative,processes,executed,many,times,scheme,only,same,reduce,errors,caused,by,multiple,filters,improve,Furthermore,series,connected,transfer,function,equivalently,replaced,paralleled,can,carry,out,independent,every,direction,efficiency,Experimental,results,demonstrate,that,possesses,good,potential,extracting,information,successfully,computational
AB值：
0.502532
相似文献
机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
