Processing Levels 1.1

2021-10-09T22:13:35Z

Definition

Raw Data

The physical telemetry payload data as received from the satellite, i.e. a serial data stream without de-multiplexing.

Level 0

Reconstructed unprocessed data at full space-time resolution with all available supplemental information to be used in subsequent processing (e.g. ephemeris, health and safety) appended.

Level 1A

Reconstructed unprocessed data at full resolution, time-referenced, and annotated with ancillary information, including radiometric and geometric calibration coefficients and geo-referencing parameters (e.g. ephemeris) computed and appended but not applied to the Level 0 data.

Level 1B

Radiometrically corrected and calibrated data in physical units at full instrument resolution as acquired.

Level 1C

L1B data orthorectified, re-sampled to a specified grid

Level 2

Derived geophysical parameters (e.g. sea surface temperature, leaf area index) at the same resolution and location as Level 1B source data.

Level 3

Data or retrieved geophysical parameters which have been spatially and/or temporally re-sampled (i.e. derived from Level 1 or 2 products), usually with some completeness and consistency. Such re-sampling may include averaging and compositing.

Level 4

Model output or results from analyses of lower level data (i.e., variables that are not directly measured by the instruments, but are derived from these measurements; could be derived from multiple instrument measurements).

Source

CEOS/WGISS/DSIG/GLOS

CEOS EO Data Stewardship Glossary

NESDIS Data Management Lexicon and Related Terms

Category

1. Earth Observation system words

Processing Levels 1.0

2021-10-04T21:16:18Z

Definition

Raw Data

The physical telemetry payload data as received from receivedfrom the satellite, i.e. a serial data stream without dewithoutde-multiplexing.

Level 0

Reconstructed unprocessed data at full spacefullspace-time resolution with all available supplemental availablesupplemental information to be used in subsequent insubsequent processing (e.g. ephemeris, health and healthand safety) appended.

Level 1A

Reconstructed unprocessed data at full resolution,time-referenced, and annotated with ancillary informationancillaryinformation, including radiometric and geometric calibration geometriccalibration coefficients and geo-referencing parameters referencingparameters (e.g. ephemeris) computed and appended andappended but not applied to the Level 0 data.

Level 1B

Radiometrically corrected and calibrated data in physical inphysical units at full instrument resolution as acquiredasacquired.

Level 1C

L1B data orthorectified, re-sampled to a specified grid specifiedgrid

Level 2

Derived geophysical parameters (e.g. sea surface temperaturesurfacetemperature, leaf area index) at the same resolution sameresolution and location as Level 1B source data.

Level 3

Data or retrieved geophysical parameters which have whichhave been spatially and/or temporally re-sampled(i.e. derived from Level 1 or 2 products), usually with usuallywith some completeness and consistency. Such reSuchre-sampling may include averaging and compositingandcompositing.

Level 4

Model output or results from analyses of lower level lowerlevel data (i.e., variables that are not directly measured directlymeasured by the instruments, but are derived from derivedfrom these measurements; could be derived from multiple frommultiple instrument measurements).

Source

CEOS/WGISS/DSIG/GLOS

Category

1. Earth Observation system words