QNH - QNH

Japanese: QNH - きゅーえぬえっち
QNH - QNH

…For this reason, aircraft taking off and landing must calibrate their altimeter origin based on the runway air pressure. This air pressure value is called the barometric altimeter calibration value, and one method is called QNH. QNH is the value used to set the barometric altimeter origin to 10 feet above sea level. …

*Some of the terminology explanations that mention "QNH" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…そのため,離着陸する航空機は滑走路の気圧の値によって高度計の原点を規正する必要がある。この気圧値を気圧高度計規正値といい,この一つにQNHと呼ばれる方式がある。QNHは気圧高度計の原点を海面10フィートに設定するための値である。…

※「QNH」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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