Capabilities / Instruments

PGS

Precision Carbon Dioxide Mixing Ratio System

Baseline Instrument

This precision gas system (PGS) makes high-accuracy, high-precision measurements of CO₂ mixing ratio (ppmv dry air) in air sampled at 2, 4, 25, and 60 m above the ground.

Specifically, PGS measures atmospheric moisture, CO₂ concentration, and methane concentration.

Primary Measurements

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Contact

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Sebastien Biraud
Lead Mentor Lawrence Berkeley National Laboratory

References

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Williams et al. "Using boundary layer equilibrium to reduce uncertainties in transport models and CO(2) flux inversions". 2011. 10.5194/acp-11-9631-2011.

Locations

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Resources

Atmospheric Radiation Measurement (ARM) | Reviewed March 2025

PGS