DWEL: A Dual-Wavelength Echidna Lidar for ground-based forest scanning

Ewan S. Douglas; Alan Strahler; Jason Martel; Timothy Cook; Christopher Mendillo; Robert Marshall; Supriya Chakrabarti; Crystal Schaaf; Curtis Woodcock; Zhan Li; Xiaoyuan Yang; Darius Culvenor; David Jupp; Glenn Newnham; Jenny Lovell

doi:10.1109/IGARSS.2012.6352489

DWEL: A Dual-Wavelength Echidna Lidar for ground-based forest scanning

Ewan S. Douglas, Alan Strahler, Jason Martel, Timothy Cook, Christopher Mendillo, Robert Marshall, Supriya Chakrabarti, Crystal Schaaf, Curtis Woodcock, Zhan Li, Xiaoyuan Yang, Darius Culvenor, David Jupp, Glenn Newnham, Jenny Lovell

Research output: Contribution to conference › Paper › peer-review

54 Scopus citations

Abstract

The Dual-Wavelength Echidna® Lidar (DWEL), a ground-based, full-waveform lidar scanner designed for automated retrieval of forest structure, uses simultaneously-pulsing, 1064 nm and 1548 nm lasers to separate scattering by leaves from scattering by trunks, branches, and ground materials. Leaf hits are separated from others by a reduced response at 1548 nm due to water absorption by leaf cellular contents. By digitizing the full return-pulse waveform (full-width half maximum, 1.5 m) at 7.5 cm intervals, the scanner can identify the type of scattering event, as well as identify and separate multiple scattering events along the pulse path to reconstruct multiple hits at distances of up to 100 m from the scanner. Scanning covers zenith angles of 0-119° and 360 azimuth with pulse centers spaced at 4, 2, and 1 mrad intervals, providing spatial resolutions of 4-40, 2-20, and 1-10 cm respectively at 10 and 100 m distances. The instrument is currently undergoing integration and testing for field deployment in July-August, 2012.

Original language	English (US)
Pages	4998-5001
Number of pages	4
DOIs	https://doi.org/10.1109/IGARSS.2012.6352489
State	Published - 2012
Externally published	Yes
Event	2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012 - Munich, Germany Duration: Jul 22 2012 → Jul 27 2012

Conference

Conference	2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012
Country/Territory	Germany
City	Munich
Period	7/22/12 → 7/27/12

Keywords

Forestry
Laser radar
Vegetation

ASJC Scopus subject areas

Computer Science Applications
General Earth and Planetary Sciences

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10.1109/IGARSS.2012.6352489

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Douglas, E. S., Strahler, A., Martel, J., Cook, T., Mendillo, C., Marshall, R., Chakrabarti, S., Schaaf, C., Woodcock, C., Li, Z., Yang, X., Culvenor, D., Jupp, D., Newnham, G., & Lovell, J. (2012). DWEL: A Dual-Wavelength Echidna Lidar for ground-based forest scanning. 4998-5001. Paper presented at 2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012, Munich, Germany. https://doi.org/10.1109/IGARSS.2012.6352489

Douglas, ES, Strahler, A, Martel, J, Cook, T, Mendillo, C, Marshall, R, Chakrabarti, S, Schaaf, C, Woodcock, C, Li, Z, Yang, X, Culvenor, D, Jupp, D, Newnham, G & Lovell, J 2012, 'DWEL: A Dual-Wavelength Echidna Lidar for ground-based forest scanning', Paper presented at 2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012, Munich, Germany, 7/22/12 - 7/27/12 pp. 4998-5001. https://doi.org/10.1109/IGARSS.2012.6352489

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abstract = "The Dual-Wavelength Echidna{\textregistered} Lidar (DWEL), a ground-based, full-waveform lidar scanner designed for automated retrieval of forest structure, uses simultaneously-pulsing, 1064 nm and 1548 nm lasers to separate scattering by leaves from scattering by trunks, branches, and ground materials. Leaf hits are separated from others by a reduced response at 1548 nm due to water absorption by leaf cellular contents. By digitizing the full return-pulse waveform (full-width half maximum, 1.5 m) at 7.5 cm intervals, the scanner can identify the type of scattering event, as well as identify and separate multiple scattering events along the pulse path to reconstruct multiple hits at distances of up to 100 m from the scanner. Scanning covers zenith angles of 0-119° and 360 azimuth with pulse centers spaced at 4, 2, and 1 mrad intervals, providing spatial resolutions of 4-40, 2-20, and 1-10 cm respectively at 10 and 100 m distances. The instrument is currently undergoing integration and testing for field deployment in July-August, 2012.",

keywords = "Forestry, Laser radar, Vegetation",

author = "Douglas, {Ewan S.} and Alan Strahler and Jason Martel and Timothy Cook and Christopher Mendillo and Robert Marshall and Supriya Chakrabarti and Crystal Schaaf and Curtis Woodcock and Zhan Li and Xiaoyuan Yang and Darius Culvenor and David Jupp and Glenn Newnham and Jenny Lovell",

year = "2012",

doi = "10.1109/IGARSS.2012.6352489",

language = "English (US)",

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AU - Douglas, Ewan S.

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AU - Martel, Jason

AU - Cook, Timothy

AU - Mendillo, Christopher

AU - Marshall, Robert

AU - Chakrabarti, Supriya

AU - Schaaf, Crystal

AU - Woodcock, Curtis

AU - Li, Zhan

AU - Yang, Xiaoyuan

AU - Culvenor, Darius

AU - Jupp, David

AU - Newnham, Glenn

AU - Lovell, Jenny

PY - 2012

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AB - The Dual-Wavelength Echidna® Lidar (DWEL), a ground-based, full-waveform lidar scanner designed for automated retrieval of forest structure, uses simultaneously-pulsing, 1064 nm and 1548 nm lasers to separate scattering by leaves from scattering by trunks, branches, and ground materials. Leaf hits are separated from others by a reduced response at 1548 nm due to water absorption by leaf cellular contents. By digitizing the full return-pulse waveform (full-width half maximum, 1.5 m) at 7.5 cm intervals, the scanner can identify the type of scattering event, as well as identify and separate multiple scattering events along the pulse path to reconstruct multiple hits at distances of up to 100 m from the scanner. Scanning covers zenith angles of 0-119° and 360 azimuth with pulse centers spaced at 4, 2, and 1 mrad intervals, providing spatial resolutions of 4-40, 2-20, and 1-10 cm respectively at 10 and 100 m distances. The instrument is currently undergoing integration and testing for field deployment in July-August, 2012.

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KW - Laser radar

KW - Vegetation

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DWEL: A Dual-Wavelength Echidna Lidar for ground-based forest scanning

Abstract

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Keywords

ASJC Scopus subject areas

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