Surface Properties - Surface Flux

The rate of flow of energy, enthalpy, and gases near the surface.

Specific Measurements:



Atmospheric turbulence: High frequency velocity fluctuations that lead to turbulent transport of momentum, heat, mositure, and passive scalars, and often expressed in terms of variances and covariances.

CO2 flux: The rate of flow for carbon dioxide, a heavy, colorless greenhouse gas.

Latent heat flux: The time rate of flow for the specific enthalpy difference between two phases of a substance at the same temperature, typically water.

Sensible heat flux: The time rate of flow for the energy transferred from a warm or hot surface to whatever is touching it, typically air.

Soil heat flux: A quantity measured according to the formula B = λ(dT/dz), where λ is the conductivity of the soil that the heat is moving through.

Soil moisture flux: A quantity measured according to the formula B = λ(dq/dz), where λ is the conductivity of the soil that the moisture is moving through.

Soil surface temperature: The temperature of the soil measured near the surface.

 

Surface Properties terms for the IASOA data vocabulary are taken from the U.S. Department of Energy’s Atmospheric Radiation Measurement (ARM) program’s measurement vocabulary. For the full reference, please visit: http://www.arm.gov/measurements.