Flux footprint (aka atmospheric flux footprint, footprint) is an upwind area where the atmospheric flux measured by an instrument is generated. Specifically, the term flux footprint describes an upwind area “seen” by the instruments measuring vertical turbulent fluxes, such that heat, water, gas and momentum transport generated in this area is registered by the instruments. Another frequently used term, fetch, usually refers to the distance from the tower when describing the footprint.
Read more about Flux Footprint: Visualization of The Concept, Mathematical Foundation, Main Factors Affecting Flux Footprint, Examples of Real-field Flux Footprint Distribution
Famous quotes containing the words flux and/or footprint:
“Existence is no more than the precarious attainment of relevance in an intensely mobile flux of past, present, and future.”
—Susan Sontag (b. 1933)
“Tom: Well, tell me, Gusto, you’re so smart. How could I erase a footprint that looks as if it was left by a heel?
Augusta: Well, that sounds almost human.”
—Billy Wilder (b. 1906)