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For questions related to calibration techniques for Time of Arrival (TOA) calculations for Radiolocation (the process of finding the location of something through the use of radio waves). This can also apply to Top of Atmosphere (ToA) reflectance.

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Is the reflectance required to get the NDVI, for Landsat 8 images?

NDVI is defined for any two bands with near-infrared and infrared data (it is an empirical remote sensing index). As such, you can calculate it straight from the DNs. This is mostly OK if you are only …
Jan Šimbera's user avatar
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