A comparison of foliage profiles in the Sierra National Forest obtained with a full-waveform under-canopy EVI lidar system with the foliage profiles obtained with an airborne full-waveform LVIS lidar system

Feng Zhao, Xiaoyuan Yang, Alan H. Strahler, Crystal L. Schaaf, Tian Yao, Zhuosen Wang, Miguel O. Román, Curtis E. Woodcock, Wenge Ni-Meister, David L.B. Jupp, Jenny L. Lovell, Darius S. Culvenor (+3 others)
2013 Remote Sensing of Environment  
Keywords: Foliage profile Ground-based full-waveform lidar Airborne full-waveform lidar system EVI LVIS Foliage profiles retrieved from a scanning, terrestrial, near-infrared (1064 nm), full-waveform lidar, the Echidna Validation Instrument (EVI), agree well with those obtained from an airborne, near-infrared, full-waveform, large footprint lidar, the Lidar Vegetation Imaging Sensor (LVIS). We conducted trials at 5 plots within a conifer stand at Sierra National Forest in August, 2008. Foliage
more » ... rofiles retrieved from these two lidar systems are closely correlated (e.g., r = 0.987 at 100 m horizontal distances) at large spatial coverage while they differ significantly at small spatial coverage, indicating the apparent scanning perspective effect on foliage profile retrievals. Also we noted the obvious effects of local topography on foliage profile retrievals, particularly on the topmost height retrievals. With a fine spatial resolution and a small beam size, terrestrial lidar systems complement the strengths of the airborne lidars by making a detailed characterization of the crowns from a small field site, and thereby serving as a validation tool and providing localized tuning information for future airborne and spaceborne lidar missions. Published by Elsevier Inc.
doi:10.1016/j.rse.2013.05.020 fatcat:unemyghsknbchmjpfkz3a3jw64