Laser-based system for ground-based measurement of backscatter surface reflectance

S. Biggar, K. Thome, J. Geis, C. Burkhart

Research output: Contribution to conferencePaper

2 Scopus citations

Abstract

The on-orbit verification of spaceborne lidar systems relies on several approaches including those based on measuring the returned signal from the surface. This returned signal depends on both the atmospheric transmittance and the surface reflectance in the backscattered direction. Thus, knowledge of the surface reflectance is critical to such approaches. The Remote Sensing Group at the University of Arizona has developed a laser-based system to measure the backscatter surface reflectance at the ground for use in vicarious calibration of lidar systems. The device relies on a beam expander and fold mirror system to illuminate the ground. A detector is placed behind an aperture cut into the fold mirror to allow the backscattered signal to be measured. This work describes the results from the use of this system for the ground-based validation of GLAS using data from White Sands Missile Range in New Mexico. Measurements from a field-portable, passive spectrometer are also shown for comparison.

Original languageEnglish (US)
Pages1955-1957
Number of pages3
StatePublished - Dec 1 2004
Event2004 IEEE International Geoscience and Remote Sensing Symposium Proceedings: Science for Society: Exploring and Managing a Changing Planet. IGARSS 2004 - Anchorage, AK, United States
Duration: Sep 20 2004Sep 24 2004

Other

Other2004 IEEE International Geoscience and Remote Sensing Symposium Proceedings: Science for Society: Exploring and Managing a Changing Planet. IGARSS 2004
CountryUnited States
CityAnchorage, AK
Period9/20/049/24/04

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ASJC Scopus subject areas

  • Computer Science Applications
  • Earth and Planetary Sciences(all)

Cite this

Biggar, S., Thome, K., Geis, J., & Burkhart, C. (2004). Laser-based system for ground-based measurement of backscatter surface reflectance. 1955-1957. Paper presented at 2004 IEEE International Geoscience and Remote Sensing Symposium Proceedings: Science for Society: Exploring and Managing a Changing Planet. IGARSS 2004, Anchorage, AK, United States.