reduction to mean sea level; sea-level pressure correction
Meteorological term for adjusting atmospheric pressure readings to mean sea level for standardization.
In meteorological observation, the station pressure is reduced to mean sea level for comparison.
気圧 is general atmospheric pressure, while 海面更正 is the specific process of adjusting it to sea level.
海面気圧 is the resulting sea-level pressure value, whereas 海面更正 is the correction procedure itself.
Standard technical spelling for meteorological pressure reduction to mean sea level.
Alternate kanji form using 校正 (calibration/correction); less common than 更正.
Compound of 海面 (sea surface) and 更正 (correction/revision), referring to the meteorological practice of adjusting pressure readings to mean sea level.