Under the canopy
Multi-target returns are the whole argument for waveform LiDAR. Here is what the second and third returns actually looked like over a forested corridor.
14 July 2026 · Drone Vision Pro
Field Report · Expressway
Flying the Central Luzon Link at 120 metres.
Thirty kilometres of alignment, one weather window, and a LiDAR sensor that has to see the ground through the cane. How the corridor got measured.
Words: RASA field team · Photographs: to be supplied · 6 min read
Instruments
What we actually check before we hand over an RTK rover
The six-point calibration routine that stops a base-and-rover pair drifting halfway through a job.
Marine
Reading a bay: bathymetry for the Bataan–Cavite crossing
Tide gauges, sound velocity, and why a survey boat is the slowest fast thing you will ever hire.
The Trade
Why your lot plan got rejected
Four things a geodetic engineer looks for before signing, and three that will send it back.
