Hi All,<div>Can someone help me understand a concept with the SRTM raster. My understanding is that the raster can be thought of as a uniform grid with each cell having dimension = "90m x 90m" (for SRTM-1 dataset). Now I am just wondering if the elevation values are 4 values at each vertex or boundary point of a cell? or is it one elevation value for the 90x90 m^2 area covered by the cell? I ask because if its the first option, then it would mean that every point that falls in the cell has it's elevation calculated using some sort of interpolation between the 4 corner points of the cell to arrive at this point's altitude. Or do several points that fall into this 90x90 cell get assigned the same elevation value?</div>
<div>Would be great if I could get some help understanding this concept about SRTM rasters.</div><div><br></div><div>Cheers,</div><div>Ed </div>