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MODPT Pointer Files

MODIS Level 2G (L2G) land data storage methodology was developed to satisfy the diverse needs of the MODIS land product generation algorithms, to enable efficient processing and reprocessing of MODIS land products, to facilitate the development of terrestrial remote sensing algorithms and science using MODIS land data, and to provide users with the original sensed MODIS observations and their sub-pixel geolocation information.

The L2G data storage structure stores information concerning the Level 2 (L2) observations that fall within each Level 3 (L3) grid cell over a 24 hour (GMT) period. The measured L2 geophysical parameter and the sensing geometry information are stored for each observation. The multiple observations stored in the L2G structure are examined by the L3 processes to extract only the most relevant observations falling over each grid cell.

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