hPas

hPas, also known as hectopascals, is a unit of pressure. It is derived from the Pascal, the SI unit of pressure, and is equal to 100 Pascals. The hectopascal is commonly used in meteorology to measure atmospheric pressure. A standard atmospheric pressure at sea level is approximately 1013.25 hectopascals. Changes in atmospheric pressure are significant indicators of weather patterns, with falling pressure often suggesting approaching storms and rising pressure indicating clearing skies. Meteorologists use weather maps that display isobars, which are lines connecting points of equal atmospheric pressure, often measured in hectopascals. This unit provides a convenient scale for reporting and analyzing atmospheric conditions across different regions. While Pascals are the fundamental SI unit, the hectopascal offers a more practical magnitude for everyday meteorological reporting.