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Comparison of vegetation indices for practicable homology |
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| Authors: | R Jaishanker T Senthivel V N Sridhar |
| Institution: | 1. Centre for Development of Advanced Computing (C-DAC), 411 007, Pune, India 2. Faculty of Agriculture, Gandhigram Rural Institute, 624 302, Dindigul, India 3. Crop Inventory and Modelling Division, Agricultural Resources Group, Space Applications Centre, Indian Space Research Organisation, 380015, Ahmedabad, India |
| Abstract: | Vegetation indices are widely used to assess quantitatively the biophysical characteristics of vegetation from remote sensing measurements. Different indices have their own advantages in retrieving vegetation information. It is very difficult to precisely attribute any vegetation index to any particular vegetation biophysical parameter. This study examines the correlations among different vegetation indices derived from a set of mustard, gram and wheat fields at three different phenological growth stages. The results are presented as correlation matrices along with correlation scatter plots. Homologous (equi-magnitude) vegetation information is represented by NDVI, PVI and AtRVI for wheat crop with leaf area index less than 1. |
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