Assessment of Leaf Area Index by the Red-edge Inflection Point Derived from VENμS Bands Academic Article uri icon

abstract

  • This study intends to examine the potential and advantage of using the red-edge spectral bands of the forthcoming Vegetation and Environmental New micro Spacecraft (VENμS) for assessing Leaf Area Index (LAI) in field crops. Field spectral (continuous) data were collected from experimental plots of wheat and potato at the northwestern Negev, Israel. These data were resampled to the VENμS bands being used for calculating the Red-Edge Inflection Point (REIP) and the Normalized Difference Vegetation Index (NDVI), which were compared to these same indices calculated by the original continuous wavelengths. The VENμS data were found to be as good predictor of LAI as the continuous data. The REIP was found to be significantly better than NDVI for LAI prediction of wheat plants. Therefore LAI assessment could be potentially applied for future field crops monitoring by VENμS.

publication date

  • March 1, 2010