NDLI: Simulation studies of forest structure using 3D lidar and radar models

Content Provider	IEEE Xplore Digital Library
Author	Guoqing Sun Ranson, K.J. Dawei Liu Koetz, B.
Copyright Year	2007
Description	Author affiliation: Univ. of Maryland, College Park (Guoqing Sun)
Abstract	The use of lidar and radar instruments to measure forest structure attributes such as height and biomass are being considered for future Earth Observation satellite missions. Large footprint lidar makes a direct measurement of the heights of scatterers in the illuminated footprint and can yield information about the vertical profile of the canopy. Synthetic Aperture Radar (SAR) is known to sense the canopy volume, especially at longer wavelengths and is useful for estimating biomass. Interferometric SAR (InSAR) has been shown to yield some forest canopy height information. There is much interest in exploiting these technologies separately and together to get important information for carbon cycle and ecosystem science. More detailed information of the electromagnetic radiation interactions within forest canopies is needed and backscattering models can be of much utility here. A three-dimensional (3D) coherent radar backscattering model and a 3D lidar backscatter models were used to investigate the use of large footprint lidar, SAR and InSAR for characterizing realistic forest scenes. The tree height indices derived from lidar waveform and heights of InSAR phase centers were compared. Results will address the possible synergies between lidar and radar data in terms of forest structural information.
Starting Page	2562
Ending Page	2565
File Size	618409
Page Count	4
File Format	PDF
ISBN	9781424412112
DOI	10.1109/IGARSS.2007.4423367
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-07-23
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Laser radar Spaceborne radar Synthetic aperture radar Synthetic aperture radar interferometry Backscatter Biomass Radar measurements Instruments Artificial satellites Wavelength measurement vegetation canopy backscatter models
Content Type	Text
Resource Type	Article

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