Skip to main content
Article
First operational BRDF, albedo nadir reflectance products from MODIS
NASA Publications
  • Crystal B Schaaf, Boston University
  • Feng Gao, Boston University
  • Alan H Strahler, Boston University
  • Wolfgang Lucht, Potsdam-Institut fur Klimafolgenforschung
  • Xiaowen Li, Boston University
  • Trevor Tsang, Boston University
  • Nicholas C Strugnell, Boston University
  • Xiaoyang Zhang, Boston University
  • Yufang Jin, Boston University
  • Jan-Peter Muller, University College London
  • Philip Lewis, University College London
  • Michael Barnsley, University of Wales Swansea
  • Paul Hobson, University of Wales Swansea
  • Mathias Disney, University College London
  • Gareth Roberts, University College London
  • Michael Dunderdale, University College London
  • Christopher Doll, University College London
  • Robert P d’Entremont, Atmospheric and Environmental Research, Inc.
  • Baoxin Hu, York University
  • Shunlin Liang, University of Maryland
  • Jeffrey L Privette, NASA Goddard Space Flight Center
  • David Roy, University of Maryland
Date of this Version
1-1-2002
Comments
Published in Remote Sensing of Environment 83 (2002) 135–148.
Abstract
With the launch of NASA’s Terra satellite and the MODerate Resolution Imaging Spectroradiometer (MODIS), operational Bidirectional Reflectance Distribution Function (BRDF) and albedo products are now being made available to the scientific community. The MODIS BRDF/Albedo algorithm makes use of a semiempirical kernel-driven bidirectional reflectance model and multidate, multispectral data to provide global 1-km gridded and tiled products of the land surface every 16 days. These products include directional hemispherical albedo (black-sky albedo), bihemispherical albedo (white-sky albedo), Nadir BRDF-Adjusted surface Reflectances (NBAR), model parameters describing the BRDF, and extensive quality assurance information. The algorithm has been consistently producing albedo and NBAR for the public since July 2000. Initial evaluations indicate a stable BRDF/Albedo Product, where, for example, the spatial and temporal progression of phenological characteristics is easily detected in the NBAR and albedo results. These early beta and provisional products auger well for the routine production of stable MODIS-derived BRDF parameters, nadir reflectances, and albedos for use by the global observation and modeling communities.
Citation Information
Crystal B Schaaf, Feng Gao, Alan H Strahler, Wolfgang Lucht, et al.. "First operational BRDF, albedo nadir reflectance products from MODIS" (2002)
Available at: http://works.bepress.com/xiaoyang-zhang/3/