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.
|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Institute of Geography|
|DDC:||910 Geography & travel|
|Deposited On:||24 Jan 2012 09:22|
|Last Modified:||29 Nov 2013 23:15|
|Citations:||Web of Science®. Times Cited: 11|
Scopus®. Citation Count: 14
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