Title :
Simulations of L-band Brightness Temperature of a Quasi-Periodic Corn Canopy
Author :
Utku, Cuneyt ; Lang, Roger H.
Author_Institution :
Instrum. Sci. Branch, Goddard Space Flight Center, Greenbelt, MD
Abstract :
The common two parameter `tau-omega´ model for emission by vegetation assumes a uniform attenuating canopy with some darkening due to scattering. As a result, the structural features of the canopy are dismissed, rendering the model insensitive to the azimuthal dependence of brightness temperature. The objective of this study is to demonstrate the effects of canopy structure on the L-band emission by employing a full-wave approach in conjunction with Monte-carlo (MC) averaging. The simulations are performed on corn canopies consisting of only stalks.
Keywords :
Monte Carlo methods; atmospheric boundary layer; atmospheric radiation; atmospheric temperature; backscatter; crops; moisture; remote sensing; soil; Kirchhoff law; L-band emission; Monte-Carlo method; backscatter; brightness temperature; canopy structural feature; full-wave approach; lossy dielectric cylinder model; quasi-periodic corn canopy; soil moisture retrieval; uniform attenuating canopy; vegetation emission; zeta-omega model; Aerospace simulation; Brightness temperature; Computational modeling; Computer simulation; Dielectrics; Instruments; L-band; Lattices; Polarization; Soil moisture; corn canopy; microwave emission; quasi-periodic; soil moisture;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2807-6
Electronic_ISBN :
978-1-4244-2808-3
DOI :
10.1109/IGARSS.2008.4780146
