topic Interpolating Between Zigzag Survey Points Along a River Channel Bed in Water Resources Questions https://community.esri.com/t5/water-resources-questions/interpolating-between-zigzag-survey-points-along-a/m-p/587738#M3026 <HTML><HEAD></HEAD><BODY><SPAN>Hi-</SPAN><BR /><BR /><SPAN>I am attempting to create a raster (and then a TIN) from bottom of channel survey points that were taken in a zigzag pattern from a boat floating downstream in a river. The points farthest away from each other in the zigzag pattern are between 50 to 100 feet away, creating areas with very sparse data.&nbsp; In the first attempt, top and toe of bank breaklines were created to define the channel; however, none of the interpolation methods created a realistic bed surface.&nbsp; We then moved the breaklines closer to the points, but this did not help.&nbsp; Our next move is to try to create a thalweg (deepest part of the channel) breakline.&nbsp; Any other ideas?</SPAN><BR /><BR /><SPAN>I am using ArcMap 10.0 with the ArcEditor license.</SPAN><BR /><BR /><SPAN>Thanks!</SPAN></BODY></HTML> Wed, 11 Jan 2012 15:46:25 GMT Anonymous User 2012-01-11T15:46:25Z Interpolating Between Zigzag Survey Points Along a River Channel Bed https://community.esri.com/t5/water-resources-questions/interpolating-between-zigzag-survey-points-along-a/m-p/587738#M3026 <HTML><HEAD></HEAD><BODY><SPAN>Hi-</SPAN><BR /><BR /><SPAN>I am attempting to create a raster (and then a TIN) from bottom of channel survey points that were taken in a zigzag pattern from a boat floating downstream in a river. The points farthest away from each other in the zigzag pattern are between 50 to 100 feet away, creating areas with very sparse data.&nbsp; In the first attempt, top and toe of bank breaklines were created to define the channel; however, none of the interpolation methods created a realistic bed surface.&nbsp; We then moved the breaklines closer to the points, but this did not help.&nbsp; Our next move is to try to create a thalweg (deepest part of the channel) breakline.&nbsp; Any other ideas?</SPAN><BR /><BR /><SPAN>I am using ArcMap 10.0 with the ArcEditor license.</SPAN><BR /><BR /><SPAN>Thanks!</SPAN></BODY></HTML> Wed, 11 Jan 2012 15:46:25 GMT https://community.esri.com/t5/water-resources-questions/interpolating-between-zigzag-survey-points-along-a/m-p/587738#M3026 Anonymous User 2012-01-11T15:46:25Z