Comparison of FLAASH and QUAC atmospheric correction methods for Resourcesat 2 LISS IV data
The LISS IV sensor aboard Resourcesat 2 is a modern relatively high resolution multispectral sensor having immense potential for generation of good quality land use land cover maps. It generates data in high (10 bit) radiometric resolution and 5.8 m spatial resolution and has three bands in the visible near infrared region. This is of particular importance to global community as the data are provided at highly competitive prices. However, no literature describing the atmospheric correction of Resourcesat 2 LISS IV data could be found. Further, without atmospheric correction full radiometric potential of any remote sensing data remains underutilized. The FLAASH and QUAC module of ENVI software are highly used by researchers for atmospheric correction of popular remote sensing data such as Landsat, SPOT, IKONOS, LISS I, III etc. This article outlines a methodology for atmospheric correction of Resourcesat 2 LISS IV data. Also, a comparison of reflectance from different atmospheric correction modules (FLAASH and QUAC) with TOA and standard data has been made to determine the best suitable method for reflectance estimation for this sensor.
SPIE Asia Pacific Remote Sensing