Finding leaves in the forest: The dual-wavelength Echidna lidar

Ewan S. Douglas; Jason Martel; Zhan Li; Glenn Howe; Kuravi Hewawasam; Robert A. Marshall; Crystal L. Schaaf; Timothy A. Cook; Glenn J. Newnham; Alan Strahler; Supriya Chakrabarti

doi:10.1109/LGRS.2014.2361812

Finding leaves in the forest: The dual-wavelength Echidna lidar

Ewan S. Douglas, Jason Martel, Zhan Li, Glenn Howe, Kuravi Hewawasam, Robert A. Marshall, Crystal L. Schaaf, Timothy A. Cook, Glenn J. Newnham, Alan Strahler, Supriya Chakrabarti

Research output: Contribution to journal › Article › peer-review

63 Scopus citations

Abstract

The dual-wavelength Echidna lidar is a portable ground-based full-waveform terrestrial scanning lidar for characterization of fine-scale forest structure and biomass content. While scanning, the instrument records the full time series of returns at a half-nanosecond rate from two coaligned 5-ns pulsed lasers at 1064 and 1548 nm wavelengths. Leaves absorb more strongly at 1548 nm compared to stems, allowing discrimination of forest composition at milliradian scales from the ground to the forest canopy. This work describes the instrument design and data products and demonstrates the power of two wavelength lidar to clearly distinguish leaves from woody material with preliminary field data from the Sierra Nevada National Forest.

Original language	English (US)
Article number	6939642
Pages (from-to)	776-780
Number of pages	5
Journal	IEEE Geoscience and Remote Sensing Letters
Volume	12
Issue number	4
DOIs	https://doi.org/10.1109/LGRS.2014.2361812
State	Published - Oct 29 2015
Externally published	Yes

Keywords

Forestry
Laser radar
Vegetation mapping

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology
Electrical and Electronic Engineering

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10.1109/LGRS.2014.2361812

Cite this

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title = "Finding leaves in the forest: The dual-wavelength Echidna lidar",

abstract = "The dual-wavelength Echidna lidar is a portable ground-based full-waveform terrestrial scanning lidar for characterization of fine-scale forest structure and biomass content. While scanning, the instrument records the full time series of returns at a half-nanosecond rate from two coaligned 5-ns pulsed lasers at 1064 and 1548 nm wavelengths. Leaves absorb more strongly at 1548 nm compared to stems, allowing discrimination of forest composition at milliradian scales from the ground to the forest canopy. This work describes the instrument design and data products and demonstrates the power of two wavelength lidar to clearly distinguish leaves from woody material with preliminary field data from the Sierra Nevada National Forest.",

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AU - Li, Zhan

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AU - Hewawasam, Kuravi

AU - Marshall, Robert A.

AU - Schaaf, Crystal L.

AU - Cook, Timothy A.

AU - Newnham, Glenn J.

AU - Strahler, Alan

AU - Chakrabarti, Supriya

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Finding leaves in the forest: The dual-wavelength Echidna lidar

Abstract

Keywords

ASJC Scopus subject areas

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