Analysis Of Factors Affecting The Accuracy Of Surface Area Calculation

Surface area is an important indicator to true reflecting the surface morphology,which has been widely used as area statistics index in the industries.With the highlight of demand for surface area calculation,more and more scholars has paid attention for the accurate calculation of surface area.Therefore,it is particularly important to research the affecting factors of the surface area accuracy calculation,for which will obtain more accurate value of the surface area.Considering the lacking of suitability analysis and effective accuracy assessment,the paper combined qualitative method and the quantitative method to analysis the suitability of Simpson Integration Undergraduate Student based on grid.It proposed the accuracy evaluation method based on analog data,verified the accuracy of grid-based Simpson Integration Undergraduate Student.In view of lacking for DEM resolution and the influence of coordinate system on the surface area calculation,it calculated the surface area,mean square error and other statistics of numerical precision through differential analysis and comparative analysis based on the Geography Census basic statistical data.It has a lack of considering the impact of topographical factors when interpolation algorithm of the surface area calculation model can been improved,comparing the correlated of different topographic factors and the surface area by using correlation analysis and explore the influence of topography factor on surface area calculation model interpolation algorithm improvements by using factors analysis.