I am starting working with S2A images. While looking at the bandwidth of S2A NIR band, it seems it has a wider area as Landsat-7 ETM+ NIR band. Previously I worked with L7 ETM+ NIR band and obtained that the band was affected by water vapor absorption feature. Is it the same for S2A NIR band? Here what I meant about the ETM+ NIR band was affected by water vapor absorption feature is that the radiometric value (reflectance) over the pseudo-invariant calibration site was degrading over time as an increase of water vapor quantity.