topic Contour Calculation - using spatial Analysis Toolset in ArcGIS Spatial Analyst Questions https://community.esri.com/t5/arcgis-spatial-analyst-questions/contour-calculation-using-spatial-analysis-toolset/m-p/698887#M10174 <HTML><HEAD></HEAD><BODY><P>There is a&nbsp; tradeoff between raster grid size and the accuracy / reliability of the contours from a given range contour intervals especially when the contour interval is less than the raster grid spacing. The DEM raster I am using is already quite highly interpolated and I have concerns that some of the contours I am seeing are eroneous or even worse artifacts. Is there any information on the ESRI method of contour caculation or better still a sensitivity analysis/reliability review&nbsp; of the contours produced?</P></BODY></HTML> Wed, 25 Mar 2015 11:00:40 GMT BrianKneller 2015-03-25T11:00:40Z Contour Calculation - using spatial Analysis Toolset https://community.esri.com/t5/arcgis-spatial-analyst-questions/contour-calculation-using-spatial-analysis-toolset/m-p/698887#M10174 <HTML><HEAD></HEAD><BODY><P>There is a&nbsp; tradeoff between raster grid size and the accuracy / reliability of the contours from a given range contour intervals especially when the contour interval is less than the raster grid spacing. The DEM raster I am using is already quite highly interpolated and I have concerns that some of the contours I am seeing are eroneous or even worse artifacts. Is there any information on the ESRI method of contour caculation or better still a sensitivity analysis/reliability review&nbsp; of the contours produced?</P></BODY></HTML> Wed, 25 Mar 2015 11:00:40 GMT https://community.esri.com/t5/arcgis-spatial-analyst-questions/contour-calculation-using-spatial-analysis-toolset/m-p/698887#M10174 BrianKneller 2015-03-25T11:00:40Z