Geiger Mode LiDAR

LiDAR – Light Detection And Ranging – is a proven technology for collecting very high accuracy elevation data, both for bare earth models (DTMs – Digital Terrain Models) and first-return models (DSMs – Digital Surface Models). With VeriDaaS’ acquisition of L3Harris Technologies Geiger Mode LiDAR system, collection occurs with unprecedented accuracy and point density for large areas.

• Significantly increase speed of collection
• Lower cost acquisition with higher density resolution
• Foliage penetration in heavy canopy areas drastically improved with better terrain information
• Shadow and void area reduction creates higher quality, greater image uniformity through multi-look sampling
• Higher accuracy for more robust bundle adjustment
• Improved delivery/schedule with enterprise production capabilities

Classified Point Cloud Data

• Planned Aggregate Nominal Pulse Density ~ 2-100 pulses/m2 as defined by customer
• Photon Collects
• Data Format in LAS 1.4
• LAS 1.4 Classification: Class 1, 2,7,9,18,20
• Withheld and overage point flagged
• Vertical Accuracy (flat open hard surface < 10cm RMSE)
• Horizontal Accuracy (< 15cm RMSE)

Hydro-Flatten Bare Earth Digital Elevation Model (DEM)

• 3D Breaklines for Hydro-Flatten
• 1m resolution
• GeoTIFF format

Data is provided as follows:

• Horizontal projection and datum is UTM or State Plane Projection in NAD83 (epoch 2010)
• Vertical datum is NAV88 using GEOID 12B model
• 1 km2 seamless non-overlapping tiles
• Vertical elevation is with 3 decimal places for elevation in meters
• Tile Index in ESRI shapefile
• Metadata

Data quality meets USGS LiDAR Specification 1.4 and exceeds QL2 requirements for 3DEP program.