三种插值方法在中国海域海浪数据处理中的应用

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Abstract Interpolation method is commonly used in oceanographic data processing.Because of the sparse distribution of meteorological stations and marine stations,the data acquisition cycle is long and the cost is large.Then,the interpolation process becomes an important tool to deal with scarcity ocean data.The current multi-interpolation method is based on Tyler expansion and error minimization principle.These programs ensure the data in the original grid point after interpolation process,remaining constant and smooth in the grid properties.The common interpolation schemes include Newton interpolation,Lagrange polynomial,local polynomial method,Kriging interpolation method and linear interpolation triangulation method.Based on wave data from WW3 model,the wave data are processed by the following 3 methods of local polynomial,Kriging and linear interpolation triangulation.And the interpolation effects are compared.The results show that the linear interpolation triangulation method for the border and shore community treatment is significantly better than local polynomial and Kriging methods.

Key words： interpolation method local polynomial method Kriging linear interpolation triangulation method

Received: 04 March 2016

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	Articles by authors
	Yang Yan
	Chen Xuan
	Liu Xiaoguang

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Yang Yan,Chen Xuan,Liu Xiaoguang. Application of three interpolation methods in waves data processing over China seas[J]. Meteorological Hydrological and Marine Instrument, 2016, 33(4): 46-49.

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http://www.qxswhy.com/EN/ OR http://www.qxswhy.com/EN/Y2016/V33/I4/46

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