Examples of Real-field Flux Footprint Distribution
Degree to which flux footprint is affected by these factors is illustrated for the all three respective cases below on the example of actual evapotranspiration flux (ET) measured over prairie in summer time (Figures 3-5). Relative contribution of the land surface area to the flux for two different measurement heights at near-neutral stability is shown in Figure 3. Please note that not only distance to the peak contributing was affected by a measurement height, but magnitude of the peak and overall distribution of the footprint was dramatically affected as well. Below is an example of relative contribution of the land surface area to the flux for two different surface roughnesses at near-neutral stability (Figure 4). Area under the curves on the plot above and on the two plots below sums up to nearly 100% of the flux contribution. The remaining few percent of flux are coming from an area beyond 500 m. Example of the relative contribution of the land surface area to the flux for two different cases of thermal stability is shown below (Figure 5). This example is adopted from Leclerc, M.Y., and G.W. Thurtell (1990).
Read more about this topic: Flux Footprint
Famous quotes containing the words examples of, examples, flux, footprint and/or distribution:
“Histories are more full of examples of the fidelity of dogs than of friends.”
—Alexander Pope (1688–1744)
“In the examples that I here bring in of what I have [read], heard, done or said, I have refrained from daring to alter even the smallest and most indifferent circumstances. My conscience falsifies not an iota; for my knowledge I cannot answer.”
—Michel de Montaigne (1533–1592)
“Death not merely ends life, it also bestows upon it a silent completeness, snatched from the hazardous flux to which all things human are subject.”
—Hannah Arendt (1906–1975)
“An oblong puddle inset in the coarse asphalt; like a fancy footprint filled to the brim with quicksilver; like a spatulate hole through which you can see the nether sky. Surrounded, I note, by a diffuse tentacled black dampness where some dull dun dead leaves have stuck. Drowned, I should say, before the puddle had shrunk to its present size.”
—Vladimir Nabokov (1899–1977)
“The question for the country now is how to secure a more equal distribution of property among the people. There can be no republican institutions with vast masses of property permanently in a few hands, and large masses of voters without property.... Let no man get by inheritance, or by will, more than will produce at four per cent interest an income ... of fifteen thousand dollars] per year, or an estate of five hundred thousand dollars.”
—Rutherford Birchard Hayes (1822–1893)