GHG
type: Document
description: CCI Data Products webpage - No further details.

Sample Image
type: Document
description: No further details.

CEDA Data Catalogue Page
type: Document
description: Detail and access information for the resource

Envisat
type: Entity
type: Concept
in scheme: https://earth.esa.int/concepts/concept_scheme/platforms

EARTH SCIENCE>ATMOSPHERE>ATMOSPHERIC CHEMISTRY>CARBON AND HYDROCARBON COMPOUNDS>ATMOSPHERIC CARBON DIOXIDE
type: Concept
in scheme: https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/sciencekeywords

ENVISAT
type: Concept
in scheme: https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms

System Verification Report (SVR) CRDP#4
type: Document
description: SCIAMACHY WFM-DOAS (WFMD) XCO2 and XCH4 - No further details.

Product Validation and Intercomparison Report (PVIRv5)
type: Document
description: No further details.

SCIAMACHY
type: Entity
type: Concept
in scheme: https://earth.esa.int/concepts/concept_scheme/instruments

Product User Guide
type: Document
description: No further details.

ESA CCI Greenhouse Gases project website
type: Document
description: No further details.

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Algorithm Theoretical Basis Document (ATBD)
type: Document
description: SCIAMACHY WFM-DOAS (WFMD) XCO2 and XCH4 - No further details.

Comprehensive Error Characterisation Report (CECR)
type: Document
description: SCIAMACHY WFM-DOAS (WFMD) XCO2 and XCH4 - No further details.

Schneising et al, 2011,'Long
type: Document
description: term analysis of carbon dioxide and methane column-averaged mole fractions retrieved from SCIAMACHY' - No further details.

Bremen WFMD website
type: Document
description: No further details.

ESA Greenhouse Gases Climate Change Initiative (GHG_cci): Column-averaged CO2 from SCIAMACHY generated with the WFMD algorithm (CO2_SCI_WFMD), v4.0
type: Dataset
access rights: Public data: access to these data is available to both registered and non-registered users. http://inspire.ec.europa.eu/metadata-codelist/LimitationsOnPublicAccess/noLimitations
description: The CO2_SCI_WFMD dataset comprises level 2, column-averaged dry-air mole fractions (mixing ratios) of carbon dioxide (XCO2) from the SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) on board the European Space Agency's environmental research satellite ENVISAT. It has been produced using the Weighting Function Modified DOAS (WFM-DOAS) algorithm, by the ESA Greenhouse Gases Climate Change Initiative (GHG_cci) project.The WFM-DOAS algorithm is a least-squares method based on scaling pre-selected atmospheric vertical profiles. Note that this has been designated as an 'alternative' algorithm for the GHG_cci and another XCO2 product has also been generated from the SCIAMACHY data using the baseline algorithm (the Bremen Optimal Estimation DOAS (BESD) algorithm). It is advised that users who aren't sure whether to use the baseline or alternative product use the product generated with the BESD baseline algorithm. For more information regarding the differences between baseline and alternative algorithms please see the GHG-CCI data products webpage. The data product is stored per day in seperate NetCDF-files (NetCDF-4 classic model). The product files contain the key products, i.e. the retrieved column-averaged dry air mole fractions for XCO2, several other useful parameters and additional information relevant to using the data e.g. the averaging kernels. For further information on the product, including details of the WFMD algorithm, the SCIAMACHY instrument and issues associated with the data please see the associated product user guide (PUG) or the Algorithm Theoretical Basis Documents in the documentation section.
language: EN
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modified: 2026-07-31T00:49:47Z

SCIAMACHY
type: Concept
in scheme: https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments

EARTH SCIENCE>ATMOSPHERE>ATMOSPHERIC CHEMISTRY
type: Concept
in scheme: https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/sciencekeywords