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)
“There is on the earth no institution which Friendship has established; it is not taught by any religion; no scripture contains its maxims. It has no temple, nor even a solitary column. There goes a rumor that the earth is inhabited, but the shipwrecked mariner has not seen a footprint on the shore. The hunter has found only fragments of pottery and the monuments of inhabitants.”
—Henry David Thoreau (1817–1862)