Topographic & Terrain Mapping
Atlas Mapping Solutions delivers survey-grade aerial LiDAR topographic mapping using the DJI Matrice 400 (M400) equipped with the Zenmuse L3 sensor and D-RTK 3 base station. Our RTK-supported workflow with PPK redundancy produces high-density 3D point clouds suitable for civil engineering design, grading analysis, drainage modeling, and infrastructure planning. Unlike traditional spot-elevation surveys, aerial LiDAR captures continuous terrain data across the entire site — including micro-topography and ground beneath moderate vegetation. We provide documented vertical and horizontal accuracy metrics, structured QA/QC reporting, and CAD/GIS-compatible deliverables designed to reduce design risk and accelerate engineering timelines.
Sensor Performance: Zenmuse L3 provides up to 16 returns per pulse and captures ground detail through vegetation. It has a maximum range of approximately 950 m (10% reflectivity).
Accuracy: Using RTK/PPK and checkpoints, we achieve approximately 3 cm vertical (RMSE) and 4 cm horizontal accuracy at 120 m AGL. Relative elevation accuracy (span-to-span) is typically 1–2 cm. All assumptions are documented and full QA/QC reports are provided.
Coverage & Timeline: Aerial LiDAR surveys can map tens of square kilometers per day. Small projects (sub-1 mi²) are typically processed within one week; larger areas require two or more weeks depending on deliverables and vegetation density
Deliverables: Classified LiDAR (LAS/LAZ), DTMs, DSMs, contours, breaklines (if requested), orthophotos, and accuracy reports. All outputs integrate directly with GIS and CAD platforms.
Value Over Traditional Methods: Manual topo surveys require extensive field crews and may miss micro-topography. LiDAR provides continuous elevation models with vegetation penetration, enabling finer detail for grading, drainage, and cut/fill calculations while reducing field exposure.
