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Polarized Lidar Reflectance Measurements of Vegetation at Near-Infrared and Green Wavelengths

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Abstract

There is growing interest in the use of lidar for remote sensing of vegetation owing to the emergence of reliable and rugged lasers and highly sensitive detectors. Lidar remote sensing has a distinct advantage over conventional techniques in vegetation remote sensing due to its capability for three-dimensional characterization of vegetative targets. The Multiwavelength Airborne Polarimetric Lidar (MAPL) system was developed primarily for vegetation remote sensing applications from an airborne platform of up to 1,000 -m altitude. The lidar system has full waveform capture and polarimetric measurement capability at two wavelengths in the near-infrared (1064 nm) and the green (532 nm) spectral regions. This study presents preliminary ground-based lidar reflectance measurements on a variety of deciduous and coniferous trees under fully foliated conditions with a view towards tree species discrimination. Variations in the reflectance characteristics of selected deciduous trees under unfoliated and fully foliated conditions were also investigated. Our study reveals distinct differences in the reflectance characteristics of various trees.

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Authors and Affiliations

  1. Department of Electrical Engineering, South Dakota State University, Brookings, SD, 57007-2220, USA

    Songxin Tan

  2. Department of Electronics Engineering, The Pennsylvania State University, University Park, PA, 16802-2705, USA

    Ram M. Narayanan

  3. Department of Electrical Engineering, University of Nebraska, Lincoln, NE, 69588-0511, USA

    Sunil K. Shetty

Authors
  1. Songxin Tan
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  2. Ram M. Narayanan
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  3. Sunil K. Shetty
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Tan, S., Narayanan, R. & Shetty, S. Polarized Lidar Reflectance Measurements of Vegetation at Near-Infrared and Green Wavelengths. Int J Infrared Milli Waves 26, 1175–1194 (2005). https://doi.org/10.1007/s10762-005-7276-3

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  • DOI: https://doi.org/10.1007/s10762-005-7276-3

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