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Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-53912

Woodhouse, I H; Nichol, C; Sinclair, P; Jack, J; Morsdorf, F; Malthus, T J; Patenaude, G (2011). A multispectral canopy LiDAR demonstrator project. Geoscience and Remote Sensing Letters, 8(5):839-843.

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Abstract

The first demonstration of a multispectral light detection and ranging (LiDAR) optimized for detailed structure and physiology measurements in forest ecosystems is described. The basic principle is to utilize, in a single instrument, both the capacity of multispectral sensing to measure plant physiology [through normalized difference vegetation index (NDVI) and photochemical reflectance index (PRI)] with the ability of LiDAR to measure vertical structure information and generate “hot spot” (specular) reflectance data independent of solar illumination. A tunable laser operated at four wavelengths (531, 550, 660, and 780 nm) was used to measure profiles of the NDVI and the PRI. Laboratory-based measurements were conducted for live trees, demonstrating that realistic values of the indexes can be measured. A model-based analysis demonstrates that the LiDAR waveforms cannot only capture the tree height information but also picks up the seasonal and vertical variation of NDVI inside the tree canopy.

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11 citations in Web of Science®
14 citations in Scopus®
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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Geography
DDC:910 Geography & travel
Language:English
Date:2011
Deposited On:24 Jan 2012 09:22
Last Modified:29 Nov 2013 23:15
Publisher:IEEE
ISSN:1545-598X
Publisher DOI:10.1109/LGRS.2011.2113312

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