SAMMI2LS_2 is the Multi-angle Imaging SpectroRadiometer (MISR) Level 2 Surface Product subset for the SAMUM region version 2. It contains information about land directional reflectance properties, albedos (spectral and PAR integrated), FPAR, associated radiation parameters, and terrain-referenced geometric parameters for the SAMUM_2006 theme.

The MISR instrument consists of nine push-broom cameras that measure radiance in four spectral bands. Global coverage is achieved in nine days. The cameras are arranged with one camera pointing toward the nadir, four forward, and four aftward. It takes seven minutes for all nine cameras to view the same surface location. The view angles relative to the surface reference ellipsoid are 0, 26.1, 45.6, 60.0, and 70.5 degrees. The spectral band shapes are nominally Gaussian, centered at 443, 555, 670, and 865 nm.