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147.4513204842905, "start_xy": [ 798063.1893754996, 6343738.8096012715 ], "end_xy": [ 798061.6283486867, 6343740.059879356 ] }, "max_3m": { "gradient_pct": 34.51072034353236, "start_distance_m": 266.0, "end_distance_m": 269.0, "midpoint_distance_m": 267.5, "start_elevation_m": 146.41599887398453, "end_elevation_m": 147.4513204842905, "start_xy": [ 798063.969888906, 6343738.184462229 ], "end_xy": [ 798061.6283486867, 6343740.059879356 ] } }, "diagnostic_note": "Windows <=3 m are at raster-noise scale (1-sigma raster noise alone is roughly +/-7 pp at 2 m and +/-5 pp at 3 m on a 1 m DTM). 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