Multisensor analysis of the spectral mixing space for Menlo Park, California, USA. False-color composites for AVIRIS (20m, RGB=2.2/0.8/0.5 mm) and Ikonos MSI (4m, RGB=0.6/0.8/0.4 mm) show similar but distinct mixing spaces as in previous figure. A soil endmember spectrum is also shown here since sparsely vegetated soil is a significant component of the mixing space in semiarid environments. Note the presence of a slight red edge in the soil endmember.