NovaLynx Corporation
Weather Monitoring Instruments and Systems
Barometric Pressure Links
 BP Sensor |
 Mercury Barometer |
 Digital Barometer |
 Pocket Barometer |
 Barograph |
 Dial Barometer |
Automatic Barometer Corrections Spreadsheet - Princo Instruments (requires MS Excel or a compatible spreadsheet program)
Elevation Correction Tables for Barometric Pressure Sensors - (PDF) Weather stations located at elevations above sea level often need adjustment to the barometer so that sea level pressure is the indicated value. Barometer corrections to sea level pressure are most often associated with airports, television reports, or National Weather Service offices. It is not necessary for a barometer to be corrected to sea level in order for it to operate. The correction adjustment is simply a preference for the way that pressure is reported. Barometric pressure corrections can be obtained by contacting a local airport or National Weather Service weather station operator and requesting the current local reading. The barometer is then adjusted so that its reading matches that obtained from the airport or NWS. Where no reporting stations exist within the immediate area, correction tables based upon the United States Standard Atmosphere can be used. These tables give the correction factor that is added to the barometric pressure reading for a given station elevation.
Finding your Latitude and Altitude for Barometer Corrections
Introduction to the Atmosphere: Atmospheric Pressure - This section from the online textbook Fundamentals of Physical Geography by Dr. Michael Pidwirny, Okanagan University College, Canada, describes instruments for measuring atmospheric pressure, and presents a QuickTime animation of monthly average sea-level pressure and prevailing winds for the Earth's surface, 1959-1997.
Online Meteorology Guide: The Pressure Module - University of Illinois
Pressure Altitude Equivalents - A simplified table based upon the United States Standard Atmosphere
Pressure Conversion Table - Use this table to convert barometric pressure readings from millibars to inches of mercury to millimeters of mercury.
The Aneroid Barometer and How To Use It - Australia Bureau of Meteorology
How to Use a Fortin or Kew Pattern Mercury Barometer - The UK's National Measurement Laboratory provides instructions for setting up a barometer and calculating pressure from the barometer readings. Also offers information on pressure units, and on adjustment and transportation of mercury barometers.
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