Air pressure meter
As the name suggests, an air pressure gauge is a measuring instrument that measures air pressure. Air pressure (or atmospheric pressure) is the force exerted on a unit area by the weight of the atmosphere above the point of measurement.
The measured air pressure is the value of the air pressure at the sensor location and height. The air pressure is indicated by the unit hectoPascal (hPa). The air pressure gauge measures at one height. Calculations determine the air pressure at helicopter deck level, sea level and aviation level. All variables are measured per 1 minute average.
Wind can strongly influence pressure measurements. Measurement errors may occur due to possible (strong) fluctuations in air pressure.
Data
The data collected with the air pressure meter can be found in various places:
- Rijkswaterstaat Waterinfo and Rijkswaterstaat Waterberichtgeving provide access to the meteorological data of Landelijk Meetnet Water (LMW) (the National Water Monitoring Network).
- The LMW also sends the data directly to the KNMI data portal.
- The Digital North Sea Alliance website provides access to meteorological data for a number of wind farms in the North Sea
Customers and applications
Customers include wind farm operators, energy traders, Rijkswaterstaat, the KNMI, skippers of Crew Transfer Vessels (CTVs), major seaports, (commercial) shipping, the Coast Guard, incident organizations and recreationists.
The data is used for climatological research, maritime research and the development, calibration and validation of models.