RICMIRCM_004 is the Multi-angle Imaging SpectroRadiometer (MISR) Level 1B3 Radiometric Camera-by-camera Cloud Mask Product subset for the RICO region version 4. This file contains the Radiometric camera-by-camera Cloud Mask dataset over the RICO region. It is used during geophysical parameter retrievals to determine whether a scene is classified as clear or cloudy. A new parameter has been added to indicate dust over ocean. This version of the ESDT is used by MISR PGE 13. In the TOA/Cloud Product, RCCM is combined with a stereoscopically derived cloud mask to 1) establish values of the Reflecting Level Reference Altitude, 2) determine how a scene is classified for choosing angular integration coefficients for establishing TOA albedos, and 3) calculate regional scene classifiers. Retrieval of Aerosol/Surface Product properties requires the absence of clouds for retrieval assumptions to be valid.

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.