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Department of Meteorology – University of Reading

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  • Copyright image © Stephen Burt

    Atmospheric Observatory

    Trace gas measurements

Trace gases

Trace gases

Measurements of trace gases – water vapour H2O, carbon dioxide CO2 – are made at 10 Hz using a Licor LI-7500 Open Path CO2/H2O Gas Analyzer. Atmospheric pressure is also recorded by the sensor.

Licor gas analyzer

The Licor gas analyzer sensor (on the right), mounted adjacent to the Gill windsonic anemometer within the Atmospheric Observatory, photographed March 2016. Photograph Copyright © Stephen Burt.


Record commenced summer 2015.

How to request climatological data from the Observatory

Sensor manufacturer links:

LI-7500RS Open Path CO2/H2O Gas Analyzer

Operational notes or changes:


This page updated January 2018

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