Canopy vertical structure using modis bidirectional reflectance data

Zhuosen Wang, Crystal B. Schaaf, Lewis Philip, Yuri Knyazikhin, Mitchell A. Schull, Alan H. Strahler, Ranga B. Myneni, Mark Chopping

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

1 Citation (Scopus)

Abstract

Canopy spectral invariant variables, escape probability and recollision probability, are wavelength independent and intrinsic canopy structure properties. They provide a physical interpretation of the correlation between canopy architecture and multi-angle spectral data. The 500m Moderate resolution Imaging Spectroadiometer (MODIS) Bidirectional Reflectance Distribution Function (BRDF) product from study sites at Howland Forest, Maine are used to develop multivariate linear regression models to estimate canopy vertical structure using both escape probabilities and directional reflectance. These are compared with canopy height information which has been retrieved from the airborne Laser Vegetation Imaging Sensor (LVIS) at a finer scale spatial resolution. Both the escape probability and the directional reflectance approaches achieve similar results with correlation coefficients of 0.63-0.66. This suggests that the MODIS 500m BRDF data can be useful in extrapolating limited lidar information on canopy vertical structure to larger regional areas.

Original languageEnglish
Title of host publication2nd Workshop on Hyperspectral Image and Signal Processing
Subtitle of host publicationEvolution in Remote Sensing, WHISPERS 2010 - Workshop Program
DOIs
StatePublished - 29 Nov 2010
Event2nd Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS 2010 - Reykjavik, Iceland
Duration: 14 Jun 201016 Jun 2010

Other

Other2nd Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS 2010
CountryIceland
CityReykjavik
Period14/06/1016/06/10

Fingerprint

Imaging techniques
Distribution functions
Optical radar
Linear regression
Wavelength
Lasers
Sensors

Keywords

  • Canopy vertical structure
  • LVIS
  • MODIS BRDF

Cite this

Wang, Z., Schaaf, C. B., Philip, L., Knyazikhin, Y., Schull, M. A., Strahler, A. H., ... Chopping, M. (2010). Canopy vertical structure using modis bidirectional reflectance data. In 2nd Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS 2010 - Workshop Program [5594952] https://doi.org/10.1109/WHISPERS.2010.5594952
Wang, Zhuosen ; Schaaf, Crystal B. ; Philip, Lewis ; Knyazikhin, Yuri ; Schull, Mitchell A. ; Strahler, Alan H. ; Myneni, Ranga B. ; Chopping, Mark. / Canopy vertical structure using modis bidirectional reflectance data. 2nd Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS 2010 - Workshop Program. 2010.
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abstract = "Canopy spectral invariant variables, escape probability and recollision probability, are wavelength independent and intrinsic canopy structure properties. They provide a physical interpretation of the correlation between canopy architecture and multi-angle spectral data. The 500m Moderate resolution Imaging Spectroadiometer (MODIS) Bidirectional Reflectance Distribution Function (BRDF) product from study sites at Howland Forest, Maine are used to develop multivariate linear regression models to estimate canopy vertical structure using both escape probabilities and directional reflectance. These are compared with canopy height information which has been retrieved from the airborne Laser Vegetation Imaging Sensor (LVIS) at a finer scale spatial resolution. Both the escape probability and the directional reflectance approaches achieve similar results with correlation coefficients of 0.63-0.66. This suggests that the MODIS 500m BRDF data can be useful in extrapolating limited lidar information on canopy vertical structure to larger regional areas.",
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Wang, Z, Schaaf, CB, Philip, L, Knyazikhin, Y, Schull, MA, Strahler, AH, Myneni, RB & Chopping, M 2010, Canopy vertical structure using modis bidirectional reflectance data. in 2nd Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS 2010 - Workshop Program., 5594952, 2nd Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS 2010, Reykjavik, Iceland, 14/06/10. https://doi.org/10.1109/WHISPERS.2010.5594952

Canopy vertical structure using modis bidirectional reflectance data. / Wang, Zhuosen; Schaaf, Crystal B.; Philip, Lewis; Knyazikhin, Yuri; Schull, Mitchell A.; Strahler, Alan H.; Myneni, Ranga B.; Chopping, Mark.

2nd Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS 2010 - Workshop Program. 2010. 5594952.

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

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Wang Z, Schaaf CB, Philip L, Knyazikhin Y, Schull MA, Strahler AH et al. Canopy vertical structure using modis bidirectional reflectance data. In 2nd Workshop on Hyperspectral Image and Signal Processing: Evolution in Remote Sensing, WHISPERS 2010 - Workshop Program. 2010. 5594952 https://doi.org/10.1109/WHISPERS.2010.5594952