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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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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.


24 citations in Web of Science®
28 citations in Scopus®
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Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Institute of Geography
Dewey Decimal Classification:910 Geography & travel
Deposited On:24 Jan 2012 09:22
Last Modified:29 Nov 2013 23:15
Publisher DOI:10.1109/LGRS.2011.2113312

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