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Table 1 Airborne lidar acquisition parameters for each acquisition

From: Multitemporal lidar captures heterogeneity in fuel loads and consumption on the Kaibab Plateau

Parameter

Acquisition year

2012

2019

2020

Vendor

Watershed Sciences, Inc.

Atlantic

Technical Applications & Consulting, LLC

Platform

Cessna Caravan

PACVX (N750VX)

Cessna Turbo Utility 206

Sensor

Leica ALS50 Phase II and ALS60

Optech Galaxy Prime

Optech Galaxy T500

Acquisition dates

Aug. 25–Sept. 15, 2012

June 27–Jul. 3, 2019

Sept. 30–Oct. 2, 2020

Survey Altitude (AGL)

900–2000 m

1800 m

961–1066 m

Footprint diameter

21–45 cm

45 cm

24–27 cm

Scan frequency

49–66 Hz

53 Hz

110–113 Hz

Pulse rate of scanner

50–106 kHz

450 kHz

550 kHz

Laser wavelength

1064 nm

1064 nm

1064 nm

Mean pulse density

≥ 8 pulses m− 2

≥ 8 pulses m− 2

9–20 pulses m− 2

Total area surveyed

1853 km2

2944 km2

175 km2