The CCI Processing Level Collection

IRI:: https://vocab.ceda.ac.uk/collection/cci/procLev

Date:: 2025-09-12
Current Version:: 0.0.1

Authors:: Science and Technology Facilities Council

Publisher:: STFC

Other visualisations:: Collection source json, rdf, ttl; SPARQL endpoint, dataset:vocab, graph:https://vocab.ceda.ac.uk/vocab/data/cci

This work is licensed under a BSD license.

Abstract

This collection represents the processing levels used by the CCI project

Introduction

The different processing levels of satellite observational data that are used within the ESA Climate Change Initiative (CCI).

Indicatorback to ToC or Members ToC

IRI: https://vocab.ceda.ac.uk/collection/cci/procLev/proc_ind

Indicators derived from satellite data.

type: http://www.w3.org/2004/02/skos/core#Concept, Processing Level
has alternative label: IND
is top concept in scheme: Processing Level
is in scheme: Processing Level

Level 0back to ToC or Members ToC

IRI: https://vocab.ceda.ac.uk/collection/cci/procLev/proc_level0

Unprocessed instrument and payload data at full resolution. CCI does not make recommendations regarding formats or content for data at this processing level.

type: http://www.w3.org/2004/02/skos/core#Concept, Processing Level
has alternative label: L0
is top concept in scheme: Processing Level
is in scheme: Processing Level
see also: https://www.ghrsst.org/

Level 1back to ToC or Members ToC

IRI: https://vocab.ceda.ac.uk/collection/cci/procLev/proc_level1

type: http://www.w3.org/2004/02/skos/core#Concept, Processing Level
has alternative label: L1
is top concept in scheme: Processing Level
is in scheme: Processing Level
has narrower: Level 1A, Level 1B, Level 1C

Level 1Aback to ToC or Members ToC

IRI: https://vocab.ceda.ac.uk/collection/cci/procLev/proc_level1A

Reconstructed unprocessed instrument data at full resolution, time referenced, and annotated with ancillary information, including radiometric and geometric calibration coefficients and georeferencing parameters, computed and appended, but not applied, to L0 data.

type: http://www.w3.org/2004/02/skos/core#Concept, Processing Level
has alternative label: L1A
is top concept in scheme: Processing Level
is in scheme: Processing Level
has broader: Level 1
see also: https://www.ghrsst.org/

Level 1Bback to ToC or Members ToC

IRI: https://vocab.ceda.ac.uk/collection/cci/procLev/proc_level1B

Level 1A data that have been processed to sensor units.

type: http://www.w3.org/2004/02/skos/core#Concept, Processing Level
has alternative label: L1B
is top concept in scheme: Processing Level
is in scheme: Processing Level
has broader: Level 1
see also: https://www.ghrsst.org/

Level 1Cback to ToC or Members ToC

IRI: https://vocab.ceda.ac.uk/collection/cci/procLev/proc_level1C

Level 1b data that have been further processed, e.g. by correcting radiances or by mapping onto a spatial grid, prior to deriving geophysical variables from the data.

type: http://www.w3.org/2004/02/skos/core#Concept, Processing Level
has alternative label: L1C
is top concept in scheme: Processing Level
is in scheme: Processing Level
has broader: Level 1

Level 2back to ToC or Members ToC

IRI: https://vocab.ceda.ac.uk/collection/cci/procLev/proc_level2

Retrieved environmental variables at the same resolution and location as the level 1 source

type: http://www.w3.org/2004/02/skos/core#Concept, Processing Level
has alternative label: L2
is top concept in scheme: Processing Level
is in scheme: Processing Level
has narrower: Level 2 Pre-processing
see also: http://wiki.ieee-earth.org/@api/deki/files/7/=Handbook_0802.pdf

Level 2 Pre-processingback to ToC or Members ToC

IRI: https://vocab.ceda.ac.uk/collection/cci/procLev/proc_level2P

Geophysical variables derived from Level 1 source data at the same resolution and location as the level 1 data, typically in a satellite projection with geographic information. These data form the fundamental basis for higher level CCI products.

type: http://www.w3.org/2004/02/skos/core#Concept, Processing Level
has alternative label: L2P
is top concept in scheme: Processing Level
is in scheme: Processing Level
has broader: Level 2
see also: https://www.ghrsst.org/

Level 3back to ToC or Members ToC

IRI: https://vocab.ceda.ac.uk/collection/cci/procLev/proc_level3

Level 2 variables mapped on a defined grid with reduced requirements for ancillary data. Three types of L3 products are defined.

type: http://www.w3.org/2004/02/skos/core#Concept, Processing Level
has alternative label: L3
is top concept in scheme: Processing Level
is in scheme: Processing Level
has narrower: Level 3C, Level 3S, Level 3U
see also: https://www.ghrsst.org/

Level 3Cback to ToC or Members ToC

IRI: https://vocab.ceda.ac.uk/collection/cci/procLev/proc_level3C

Collated (L3C): Observations combined from a single instrument into a space-time grid.

type: http://www.w3.org/2004/02/skos/core#Concept, Processing Level
has alternative label: L3C
is top concept in scheme: Processing Level
is in scheme: Processing Level
has broader: Level 3

Level 3Sback to ToC or Members ToC

IRI: https://vocab.ceda.ac.uk/collection/cci/procLev/proc_level3S

Super-collated (L3S): observations combined from multiple instruments into a space-time grid.

type: http://www.w3.org/2004/02/skos/core#Concept, Processing Level
has alternative label: L3S
is top concept in scheme: Processing Level
is in scheme: Processing Level
has broader: Level 3

Level 3Uback to ToC or Members ToC

IRI: https://vocab.ceda.ac.uk/collection/cci/procLev/proc_level3U

Uncollated (L3U): L2 data granules remapped to a space grid without combining any observations from overlapping orbits.

type: http://www.w3.org/2004/02/skos/core#Concept, Processing Level
has alternative label: L3U
is top concept in scheme: Processing Level
is in scheme: Processing Level
has broader: Level 3

Level 4back to ToC or Members ToC

IRI: https://vocab.ceda.ac.uk/collection/cci/procLev/proc_level4

Data sets created from the analysis of lower level data that result in gridded, gap-free products.

type: http://www.w3.org/2004/02/skos/core#Concept, Processing Level
has alternative label: L4
is top concept in scheme: Processing Level
is in scheme: Processing Level
see also: https://www.ghrsst.org/

Unspecifiedback to ToC or Members ToC

IRI: https://vocab.ceda.ac.uk/collection/cci/procLev/proc_unspecified

Unspecified

type: http://www.w3.org/2004/02/skos/core#Concept, Processing Level
has alternative label: Unspecified
is top concept in scheme: Processing Level
is in scheme: Processing Level