4 papers
Temporal divergence in cropping pattern and its implications on geospatial drought assessment
C. S. Murthy, M. V. R. Sesha Sai, M. Naresh Kumar +1
Time series data on cropping pattern at disaggregated level were analysed and its implications on geospatial drought assessment were demonstrated. An index of Cropping Pattern Diss…
A new hybrid spectral similarity measure for discrimination of Vigna species
M. Naresh Kumar, M. V. R Seshasai, K. S Vara Prasad +4
The reflectance spectrum of the species in a hyperspectral data can be modelled as an n-dimensional vector. The spectral angle mapper computes the angle between the vectors which i…
On the use of Standardized Precipitation Index(SPI) for drought intensity assessment
M. Naresh Kumar, C. S. Murthy, M. V. R. Sesha Sai +1
Monthly rainfall data from June to October for 39 years was used to generate Standardized Precipitation Index (SPI) values based on Gamma distribution for a low rainfall and a high…
Spatiotemporal Analysis of Meteorological Drought Variability in the Indian Region Using Standardized Precipitation Index
M. Naresh Kumar, C. S. Murthy, M. V. R. Sesha Sai +1
Grid (1° latitude x 1° longitude) level daily rainfall data over India from June to September for the years 1951 to 2007, generated by India Meteorological Department, was analyzed…