What do the various levels of AMSR-E data represent?
The following table describes the different levels of AMSR-E data.
|Level-0||Reconstructed, unprocessed instrument/payload data at full resolution; any and all communications artifacts, for example, synchronization frames, communications headers, and duplicate data removed.|
|Level-1A||Reconstructed, unprocessed instrument data at full resolution, time-referenced, and annotated with ancillary information, including radiometric and geometric calibration coefficients and georeferencing parameters. For example, platform ephemeris computed and appended but not applied to the Level-0 data.|
|Level-1B||Level-1A data that have been processed to sensor units. Not all instruments will have a Level-1B equivalent.|
|Level-2||Derived geophysical variables at the same resolution and location as the Level-1 source data.|
|Level-3||Derived geophysical variables mapped on uniform space-time grid scales, usually with some completeness and consistency.|
|Level-4||Model output or results from analyses of lower level data. For example, variables derived from multiple measurements.|