ESA Greenhouse Gases Climate Change Initiative (GHG_cci): Column averaged carbon dioxide from OCO-2 generated with the FOCAL algorithm, version 09

This dataset contains column-average dry-air mole fractions of atmospheric carbon dioxide (XCO2), using the fast atmospheric trace gas retrieval for OCO2 (FOCAL-OCO2). The FOCAL-OCO2 algorithm which has been setup to retrieve XCO2 by analysing hyper spectral solar backscattered radiance measurements from NASA's Orbiting Carbon Observatory 2 (OCO-2) satellite. FOCAL includes a radiative transfer model which has been developed to approximate light scattering effects by multiple scattering at an optically thin scattering layer. This reduces the computational costs by several orders of magnitude. FOCAL's radiative transfer model is utilised to simulate the radiance in all three OCO-2 spectral bands allowing the simultaneous retrieval of CO2, H2O, and solar induced chlorophyll fluorescence. The product is limited to cloud-free scenes on the Earth's day side. This dataset is also referred to as CO2_OC2_FOCA.

This version of the data (v09) was produced as part of the European Space Agency's (ESA)

Climate Change Initiative (CCI) Greenhouse Gases (GHG) project (GHG-CCI+, http://cci.esa.int/ghg)

and got co-funding from the Univ. Bremen and EU H2020 projects CHE (grant agreement no. 776186) and VERIFY (grant agreement no. 776810).

When citing this data, please also cite the following peer-reviewed publications:

M.Reuter, M.Buchwitz, O.Schneising, S.Noël, V.Rozanov, H.Bovensmann and J.P.Burrows: A Fast Atmospheric Trace Gas Retrieval for Hyperspectral Instruments Approximating Multiple Scattering - Part 1: Radiative Transfer and a Potential OCO-2 XCO2 Retrieval Setup, Remote Sensing, 9(11), 1159; doi:10.3390/rs9111159, 2017

M.Reuter, M.Buchwitz, O.Schneising, S.Noël, H.Bovensmann and J.P.Burrows: A Fast Atmospheric Trace Gas Retrieval for Hyperspectral Instruments Approximating Multiple Scattering - Part 2: Application to XCO2 Retrievals from OCO-2, Remote Sensing, 9(11), 1102; doi:10.3390/rs9111102, 2017

Date (Publication): 2021-09-02T15:55:52

Date (Creation): 2021-09-02T15:55:52

Citation identifier: https://catalogue.ceda.ac.uk/uuid/b0de069568a141b0b074ca0f7cee004b

Citation identifier: NERC EDS Centre for Environmental Data Analysis / b0de069568a141b0b074ca0f7cee004b

Citation identifier: doi / 10.5285/b0de069568a141b0b074ca0f7cee004b

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Unavailable	Reuter, M.	Unavailable	Author
Unavailable	Buchwitz, M.	Unavailable	Author
Unavailable	Schneising, O.	Unavailable	Author
Unavailable	Bovensmann, H.	Unavailable	Author
Unavailable	Burrows, J. P.	Unavailable	Author
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	Custodian
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	Distributor
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	pointofContact
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	Publisher

Maintenance and update frequency: Not planned

Update scope: Dataset

Keywords

ESA
CCI
satellite
CO2

GEMET - INSPIRE themes, version 1.0

orthoimagery

Access constraints: Other restrictions

Other constraints: Public data: access to these data is available to both registered and non-registered users.

Use constraints: Other restrictions

Other constraints: Under the following licence https://artefacts.ceda.ac.uk/licences/specific_licences/esacci_ghg_terms_and_conditions.pdf, appropriate use of these data may fall under any use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.

Spatial representation type: Grid

Language: English

Topic category

Imagery base maps earth cover

Begin date: 2015-01-01T00:00:00

End date: 2020-05-30T23:59:59

Unique resource identifier: WGS 84

Distribution format

Name	Version
Data are netCDF formatted.

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	Distributor

OnLine resource

Protocol	Linkage	Name
	https://catalogue.ceda.ac.uk/uuid/b0de069568a141b0b074ca0f7cee004b	CEDA Data Catalogue Page

OnLine resource

Protocol	Linkage	Name
	http://data.ceda.ac.uk/neodc/esacci/ghg/data/cci_plus/CO2_OC2_FOCA/v9.0/	DOWNLOAD

OnLine resource

Protocol	Linkage	Name
	http://www.iup.uni-bremen.de/carbon_ghg/docs/GHG-CCIplus/CRDP6/PUGv3_GHG-CCI_CO2_OC2_FOCA_v09_20210126.pdf	Product user guide

OnLine resource

Protocol	Linkage	Name
	https://climate.esa.int/	ESA Climate Change Initiative website

OnLine resource

Protocol	Linkage	Name
	https://www.mdpi.com/2072-4292/9/11/1159	M.Reuter, M.Buchwitz, O.Schneising, S.Noel, V.Rozanov, H.Bovensmann and J.P.Burrows: A Fast Atmospheric Trace Gas Retrieval for Hyperspectral Instruments Approximating Multiple Scattering - Part 1: Radiative Transfer and a Potential OCO-2 XCO2 Retrieval Setup Remote Sensing, 9(11), 1159; doi:10.3390/rs9111159, 2017

OnLine resource

Protocol	Linkage	Name
	http://www.mdpi.com/2072-4292/9/11/1102	Reuter, M., M. Buchwitz, O. Schneising, S. Noel, H. Bovensmann, J. P. Burrows, A Fast Atmospheric Trace Gas Retrieval for Hyperspectral Instruments Approximating Multiple Scattering - Part 2: Application to XCO2 Retrievals from OCO-2, Remote Sens., 9, 1102, doi:10.3390/rs9111102, 2017.

OnLine resource

Protocol	Linkage	Name
	https://climate.esa.int/projects/ghgs/	Greenhouse Gases CCI project

OnLine resource

Protocol	Linkage	Name
	https://www.iup.uni-bremen.de/carbon_ghg/docs/GHG-CCIplus/PSD/PSDv3_GHG-CCI_final.pdf	GHG-CCI project team: Product Specification Document Version 3 (PSDv3) for the Essential Climate Variable (ECV) Greenhouse Gases (GHG) - Description of Common Parameters for core (ECA) products ESA Climate Change Initiative (CCI), 2014

OnLine resource

Protocol	Linkage	Name
	http://www.iup.uni-bremen.de/carbon_ghg/docs/GHG-CCIplus/CRDP6/ATBD_CO2_OC2_FOCA_v2.pdf	CRDP6: Algorithm Theoretical Basis Document (ATBD) - CO2_OC2_FOCA

OnLine resource

Protocol	Linkage	Name
	https://www.iup.uni-bremen.de/carbon_ghg/docs/GHG-CCIplus/CRDP6/E3UBv2_GHG-CCI_CO2_OC2_FOCA_v09_20210126.pdf	CRDP6: End-to-End ECV Uncertainty Budget (E3UB) – CO2_OC2_FOCA

Hierarchy level: Dataset

Conformance result

Title: Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Date (Publication): 2010-12-08

Statement: This version of the data was produced as part of the European Space Agency's (ESA)

Climate Change Initiative (CCI) Greenhouse Gases (GHG) project (GHG-CCI+, http://cci.esa.int/ghg)

and got co-funding from the Univ. Bremen and EU H2020 projects CHE (grant agreement no. 776186) and VERIFY (grant agreement no. 776810).

Data were supplied to CEDA for archiving as part of the ESA CCI Open Data Portal.

Metadata

File identifier: b0de069568a141b0b074ca0f7cee004b XML

Metadata language: English

Character set: UTF8

Parent identifier: ESA Greenhouse Gases Climate Change Initiative (GHG_cci) dataset collection
0508f3dd991144aa80346007a415fb07

Hierarchy level: Dataset

Date stamp: 2026-02-08T03:23:16

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

Metadata author

Organisation name	Individual name	Electronic mail address	Role
NERC EDS Centre for Environmental Data Analysis		support@ceda.ac.uk	Point of contact

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