|Title||Effects of Sand Dune Ridge Alignment on Surface BRF over the Libya-4 CEOS Calibration Site|
|Publication Type||Journal Article|
|Year of Publication||2015|
The Libya-4 desert area is one of the most important bright desert CEOS pseudo-invariant calibration sites because of its size and radiometric stability. This site is intensively used for radiometer drift monitoring, sensor intercalibration and as an absolute calibration reference based on simulated radiances traceable to the SI standard. The Libya-4 morphology is composed of oriented sand dunes shaped by dominant winds. The effects of sand dune spatial organization on the surface bidirectional reflectance factor have been analyzed using a 3D radiative transfer model (RTM).