Originally Posted by
Speedbird777
1) If I am on the ground at an airport and the temperature is higher than standard conditions, the air will be less dense and so the altimeter will read higher
Altimeter does not measure density!!, it measures pressure! Static pressure.
And while there is a general connection between temp, pressure and density, you need to get your notions straight first in order to understand these problems
Temperature error cannot be corrected.
Sure it can, they do it all the time when they release a QNH: It is so computed that if you set your altimeter to QNH it will indicate the airport elevation while sitting on the ground. The temp error is 0 at airport elevation and not-zero everywhere else.