noun
reduction to mean sea level; sea-level pressure correction
Meteorological term for adjusting atmospheric pressure readings to mean sea level for standardization.
気象観測では、観測所の気圧を海面更正して比較する。
In meteorological observation, the station pressure is reduced to mean sea level for comparison.
Compound of 海面 (sea surface) and 更正 (correction/revision), referring to the meteorological practice of adjusting pressure readings to mean sea level.