
EddyPro Units – Distinguishing Between Molar Density, Mole Fraction, and Mixing Ratio
Confused by the units provided by your gas analyzer? Which units should you use when processing eddy covariance data sets in EddyPro? This chart summarizes the definition of units, different ways to express measurements, and which instruments record data in which units.
Measurement Type Intended Meaning Common Units Typical Instruments Molar Density • A measurement representing the number of moles of a molecule present in a unit volume of air.
• It can also be the mass per unit…