PRECISION GEOMATICS · EST. 2017 · PAONTA SAHIB, HIMACHAL PRADESH GSTIN 02AAECH1928H1ZY · CIN U93000HP2017PTC006609
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UAV LiDAR Survey & Mapping

When dense forest hides the ground from cameras, LiDAR sees through. HSSPL flies UAV-borne laser scanners over Himalayan hydropower corridors, pilgrimage infrastructure and project sites — delivering classified point clouds, bare-earth terrain models and contours where photogrammetry alone cannot. Our LiDAR work includes the complete Mata Vaishno Devi temple complex for the Shrine Board.

PLATFORM UAV LiDAR   ACCURACY 5–10 cm vertical   OUTPUTS LAS · DEM · CONTOURS
Real outputs, real project

One forest corridor, three products.

From a single UAV LiDAR campaign over a dense-forest hydro corridor: the raw true-colour point cloud, the elevation-classified cloud revealing the terrain, and the final orthomosaic with engineering contours.

True-colour RGB LiDAR point cloud of a forested Himalayan river valley
LAS point cloud · true-colour RGB
Elevation-classified LiDAR point cloud revealing terrain beneath forest
LAS point cloud · classified by elevation
Orthomosaic with contour overlay derived from LiDAR terrain model
Orthomosaic · contour overlay
Applications

Where LiDAR earns its keep.

Dense-Forest Terrain Extraction

Bare-earth DEM/DTM beneath forest canopy — the decisive advantage over photogrammetry on Himalayan hydropower and road corridors.

Corridor Mapping

Roads, ropeways, transmission lines, penstocks and pipelines flown as strips — long alignments captured in days, not months of ground survey.

Heritage & Infrastructure

High-density scans of temples, townships and structures — as surveyed across the complete Mata Vaishno Devi temple complex for the Shrine Board.

Workflow & software

From pulse to drawing.

  • Flight planning matched to point-density specification and terrain
  • RTK/PPK trajectory processing tied to DGPS ground control
  • Point-cloud classification and cleaning in CloudCompare and PDAL
  • DEM/DTM, contour and drawing extraction in QGIS — delivered as LAS/LAZ, GeoTIFF, shapefile and DWG/DXF
  • Every surface independently verified against ground control points
Why HSSPL for LiDAR

Hill-terrain flying is our home ground.

  • Own UAV fleet — availability and calibration under our control
  • Crews experienced in high-altitude, restricted and remote-area operations
  • Proven on hydropower corridors and the Vaishno Devi complex
  • Combined deliverables with our topographic and bathymetric surveys — one team, one accountable contract
Frequently asked questions

LiDAR surveys, explained.

What is a LiDAR survey?

A LiDAR survey uses a laser scanner — mounted on a UAV — that fires hundreds of thousands of pulses per second and measures their return time. The result is a dense 3D point cloud of the terrain and everything on it, accurate to centimetres, from which DEMs, contours and drawings are extracted.

Why use LiDAR instead of drone photogrammetry?

Photogrammetry only sees what the camera sees — in dense forest it maps the canopy, not the ground. LiDAR pulses penetrate gaps in vegetation and return from the actual terrain, making it the only practical way to get accurate bare-earth models under forest cover.

What accuracy does UAV LiDAR achieve?

With RTK/PPK trajectory processing and ground-control verification, typically 5–10 cm vertical accuracy on bare ground. Every HSSPL deliverable is independently checked against DGPS control points before handover.

What deliverables do we receive?

Classified LAS/LAZ point clouds, bare-earth DEM/DTM rasters, contour plans at your specified interval, cross-sections and L-sections, GIS-ready shapefiles, CAD drawings (DWG/DXF) and a survey report with accuracy statement.

How large an area can be covered?

Roughly 1–3 sq km per flying day depending on terrain and point density; corridor projects progress 10–20 km per day in favourable conditions.

Have a corridor or site that needs LiDAR?

Tell us the location, area and accuracy you need — a surveyor will respond with a method, timeline and quote within one working day.

Get a survey quote   Call +91 88947 33124