Main Factors Affecting Flux Footprint
Three main factors affecting the size and shape of flux footprint are:
- measurement height
- surface roughness
- atmospheric thermal stability
Increase in measurement height, decrease in surface roughness, and change in atmospheric stability from unstable to stable would lead to an increase in size of the footprint and move peak contribution away from the instrument. The opposite is also true. Decrease in measurement height, increase in surface roughness, and change in atmospheric stability from stable to unstable would lead to a decrease in size of the footprint and move peak contribution closer to the instrument.
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