I want to know how to find the nos. of scene of LISS 4 data required to cover an area(say 84000 sq km)? any suggestion/solution/calculation?
From this page:
So, mono mode: 70km x 70km = 4900km^2 per scene. Multispectral mode: 23km x 23km = 529km^2 per scene.
So, to determine how many scenes are required to cover 84,000km^2:
84,000 / 4900 = 17.14 = 18 scenes.
84,000 / 529 = 158.79 = 159 scenes.
I'm not very familiar with this dataset but that is how I would calculate the number of scenes required for any dataset. Of course, it depends on the actual layout of the study area. You may need slightly more or slightly less scenes.