peekay4,
In general you are right, but for this particular case it more or less works, as in both cases the profile is done along a straight line.
http://www.enaire.es/csee/Satellite?...&ssbinary=true
AOC is not as precise, and the horizontal distances are to the threshold of runway 21, but it was a schematic drawing to give people an idea of the terrain before the threshold.
The "issue" with the PATC in this case is that, although it shows the deep valley at around 1000 m for threshold, it does not show the peak of the hill 3000 m before. You can see the terrain going up 2000 m before the threshold but the chart ends before the peak is reached. 2000 m before the threshold, the terrain is still below the airport elevation. I guess it is not common to have a relevant feature 3km before the threshold...but on the other hand, I guess it is not common to have a RA of 500' at DH either.
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