QNH correction for instrument approach
Ladies and gents,
I apologise in advance if this happens to be the wrong place to ask.
Yesterday my colleague and I were confronted with a definition issue, or so we thought. During his class yesterday, using his manuals as usual, he came across the definition of QNH. I can not remember the exact wording, but it was something along the line of: QNH is also corrected for temperature. The students then asked whether this was correct or not and if so, how is it calculated. Our main concern is the instrument approach environment without the radar altimeter and the usage of the QNH given by ATC.
I have done a search within the forum, but I have not been able to find an appropriate answer.
Thanks!
TG