EOS Data Product Levels

EOS standard data products will be available at various product levels ranging from Level 0 to Level 4. Level 0 data products are raw EOS instrument data at full instrument resolution. At higher levels, raw instrument data is converted into more usable parameters and formats that are of interest to the Earth science community. At Level 4, parameters are further refined through the use of models.

The various levels of data shown below are identical to those defined by the EOSDIS Data Panel and are consistent with the Committee on Data Management, Archiving, and Computing (CODMAC) definitions.
Level 0
Level 0 data products are reconstructed, unprocessed instrument/payload data at full resolution; any and all communications artifacts, e.g. synchronization frames, communications headers, duplicate data removed.
Level 1A
Level 1a data products are reconstructed, unprocessed instrument data at full resolution, time-referenced, and annotated with ancillary information, including radiometric and geometric calibration coefficients and georeferencing parameters, e.g., platform ephemeric, 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
Level 2 data products are derived geophysical variables at the same resolution and location as the Level 1 source data.
Level 3
Level 3 data products are variables mapped on uniform space-time grid scales, usually with some completeness and consistency.
Level 4
Level 4 data products are model output or results from analyses of lower level data, e.g. variables derived from multiple measurements.

ECSinfoScience Data Production
URL: http://ecsinfo.hitc.com/sec3/sec3.html
Point of Contact/Curator: Stephen Berrick, sberrick@eos.hitc.com
Revised: August 1, 1996