airborne lidar bathymetry of the great barrier reef

Robin J. Beaman

School of Earth and Environmental Sciences, James Cook University, Cairns, Qld 4870, Australia. Email: robin.beaman@jcu.edu.au

Seminar to LiDAR Technologies 2011 Workshop, Cairns, QLD, Australia, 31 May 2011

Seminar outline

• LADS technical introduction• YouTube in-flight movie• Air System data collection• Ground System data processing• LADS coverage of the GBR• Case study – Ribbon Reefs (LADS1)• Case study – Moore Reef (LADS2)

2 km

2 se

c sh

ip

surv

ey2

sec ae

rial

surv

ey

• 990 soundings/sec• 3.56 million soundings/hr• 240 m swath @ 5 x 5 m• 6, 5, 4, 3, 2 m grid density

Swath width 240 m @ 5 x 5 grid

Height 500 m

Vertical infrared beam

Green beam

Max. inclination 15°

Max. depth 70 m

Fokker F27-500Fokker F27-500• pre-2009pre-2009• LADS 1 & LADS2LADS 1 & LADS2• 145 kn145 kn

Bombardier Dash 8-200Bombardier Dash 8-200• post-2009post-2009• LADS2LADS2• 175 kn175 kn

YouTube in-flight movie

http://www.youtube.com/watch?v=5Knp_mg5Cw0&feature=player_embedded#at=11

LADS coverage of the GBR

Case study: Ribbon Reefs (LADS1)

Case study: Moore Reef (LADS2)

Acknowledgments

• LCDR Richard Cullen (RAN)• RAN LADS Flight staff, Cairns• FUGRO LADS staff, Cairns• Michael Andrew, Wollongong

(AHS)