An in-depth look at a unique forestry project featuring lidar-derived forest biomass data products. Led by Merrick and Co and supported by the Galaxy G2 Sensor System, this project features unsurpassed data collection efficiency in restricted airspace limitations. We look forward to sharing details of Merrick's innovative approach resulting in the enablement of flood hazard mitigation and preparedness, conservation planning and various biomass related forest products.
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The Forest and the Trees - Enhanced Resolution and Efficiency featuring Galaxy G2 Sensor System
1. The Forest and the Trees
Enhanced Resolution and Efficiency featuring
Galaxy G2 Sensor System
Matt Bethel
Merrick & Company
Director of Operations and Technology
Malek Singer
Teledyne Optech
Product Manager, Airborne
2. What is the Galaxy?
Compact, all terrain sensor that leverages unique, high-productivity
features for maximum collection efficiency.
• 100% effective pulse rate
• Programmable FOV
• Built-in Swath Compensation
• Excellent small target detection
• Upgradable
3. TRUE 4 million points/second on the ground
• SPL-grade point density
• Unequalled single-pass point densities
Forward/backward look angle
• Modifiable pitch of 2.5 or 7 degrees
• Excellent vertical target detection
Highest productivity
• Same altitude, double the density
• Double the altitude/FOV, maintain the density
• Maintain SwathTRAK and PulseTRAK benefits
G2 scan pattern
Why the G2 Sensor System?
4. Unique versatility: dual sensor or 2 singles
• Use 2 × T2000 as a G2 for one project, or separately for increased capacity
• Establish partnerships with single Galaxy owners
Single aircraft portal, single workflow
• Installed in standard aircraft portal
• Same/single Planning, Operations
and Processing workflow
Why the G2 Sensor System?
G2
High res forest mapping
QL1, mountains
40 pt/m2, wires
T2000
T2000
13. • AGL: 2,259 m
• Groundspeed: 170 knots
• PRF: 400 kHz per each Galaxy Prime (800 kHz total)
• Sidelap: 55%
• Field of View: 38°
• Planned Dual Point Density at nadir: 10 ppsm
• SwathTRAK: On
• Roll Compensation: On
• Boost Mode: On
Flight Parameters
15. Required Deliverables
• Canopy Height Model (CHM)
from FUSION
• Density rasters and
distribution charts based on:
• Last returns
• All ground
• Ground only within tree
canopy polygons
• Vegetation only
Additional Products
• Classified Points
• Ground
• Low vegetation
• Medium vegetation
• High vegetation
• Digital Elevation Model (DEM)
based on ground classified points
• Tree Canopy Polygons
• Tree Crown Points
40. FOLIAGE PENETRATION
VERTICAL FEATURE
FIDELITY
COLLECTION EFFICIENCY
0.00
100.00
200.00
300.00
400.00
500.00
Flight
Hours
Flight Hours Comparison Between
Single Prime and Prime G2
Single Prime Flight Hours Prime G2 Flight Hours
G2 is moving the needle when it come to