ESA Greenhouse Gases Climate Change Initiative (GHG CCI): SCIAMACHY CH4 Level 2 Data Product (CH4_SCI_WFMD), version 3.9, generated with the WFMD algorithm

Part of the European Space Agency's (ESA) Greenhouse Gases (GHG) Climate Change Initiative (CCI) project and the Climate Research Data Package Number 3 (CRDP#3), the XCH4 SCI product comprises a level 2, column-averaged dry-air mole fraction (mixing ratio) for methane (CH4). The product has been produced using data acquired from the SCanning Imaging Absorption spectroMeter for Atmospheric CHartographY (SCIAMACHY) on board the European Space Agency's environmental research satellite ENVISAT.

This product has been derived by applying the Weighting Function Modified DOAS (WFMD) algorithm to the SCIAMACHY data, a least-squares method based on scaling pre-selected atmospheric vertical profiles. A second product is also available, which has been generated from the SCIAMACHY data using the IMAP algorithm.

The data product is stored per day in separate NetCDF-files (NetCDF-4 classic model). The product files contain the key products and other information relevant for the use of the data e.g. the averaging kernels. Note that the results since November 2005 are considered to be of reduced quality in comparison to the earlier results because the extended-wavelength part (1590-1770 nm) of SCIAMACHY's channel 6, covering the methane 2v3 absorption band used for the methane retrieval, is subject to irreversible displacement damage induced by high energy solar protons, which occurs from time to time at individual detector pixels. Therefore several affected detector pixels had to be excluded for the time period since November 2005.

For further information on the product, including details of the WFMD algorithm and the SCIAMACHY instrument, please see the associated product user guide (PUG) or the Algorithm Theoretical Basis Documents in the documentation section

The GHG-CCI team encourage all users of their products to register with them to receive information on any updates or issues regarding the data products and to receive notification of new product releases. To register, please use the following link: http://www.iup.uni-bremen.de/sciamachy/NIR_NADIR_WFM_DOAS/CRDP_REG/

Date (Publication): 2016-04-11T08:17:05

Date (Creation): 2016-04-11T08:17:05

Identifier: https://catalogue.ceda.ac.uk/uuid/89a49c8e8dbb4a1bb8799589ffd39dc7

Identifier: Centre for Environmental Data Analysis (CEDA) / 89a49c8e8dbb4a1bb8799589ffd39dc7

Author

ESA CCI GHG project team - author

Custodian

Centre for Environmental Data Analysis (CEDA) - custodian

Rutherford Appleton Laboratory , Harwell , Oxon , OX11 0QX , United Kingdom

01235446432

Distributor

Centre for Environmental Data Analysis (CEDA) - distributor

Rutherford Appleton Laboratory , Harwell , Oxon , OX11 0QX , United Kingdom

01235446432

pointofContact

Centre for Environmental Data Analysis (CEDA) - point_of_contact

Rutherford Appleton Laboratory , Harwell , Oxon , OX11 0QX , United Kingdom

01235446432

Publisher

Centre for Environmental Data Analysis (CEDA) - publisher

Rutherford Appleton Laboratory , Harwell , Oxon , OX11 0QX , United Kingdom

01235446432

Maintenance and update frequency: Unknown

Update scope: Dataset

Keywords

University of Bremen
greenhouse gases
Level 2
Envisat
SCIAMACHY
column-averaged dry air mole fraction of CH4
SCIAMACHY
Environmental Satellite
satellite orbit frequency
ESA
GHG
CCI
CH4
WFMD
Greenhouse Gas

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

Metadata language: English

Topic category

Imagery base maps earth cover

N

S

E

W

Begin date: 2002-10-01T00:00:00

End date: 2011-12-31T23:59:59

Unique resource identifier: WGS 84

Distribution format

Data are in NetCDF format ()

Distributor

Centre for Environmental Data Analysis (CEDA) - Data Center Contact

Rutherford Appleton Laboratory , Harwell , Oxon , OX11 0QX , United Kingdom

01235446432

OnLine resource: CEDA Data Catalogue Page
Detail and access information for the resource

OnLine resource: DOWNLOAD
Download Data

OnLine resource: ESA CCI Greenhouse Gases project website
No further details.

OnLine resource: U Bremen, WFMD web page
No further details.

OnLine resource: GHG-CCI Data Products webpage
No further details.

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

OnLine resource: System Verification Report (SVR) CRDP#3 - SCIAMACHY WFM-DOAS (WFMD) XCO2 and XCH4
No further details.

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

OnLine resource: Product Validation and Intercomparison Report (PVIRv4)
No further details.

OnLine resource: Product Specification Document Version 3 (PSDv3)
No further details.

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

OnLine resource: Product User Guide
No further details.

OnLine resource: Sample Image
No further details.

Hierarchy level: Dataset

Conformance result

Date (Publication): 2010-12-08

Statement: Data were processed by the ESA CCI GHG project team and supplied to CEDA as part of the ESA CCI Open Data Portal Project

File identifier: 89a49c8e8dbb4a1bb8799589ffd39dc7 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: 2024-09-26T00:02:07

Metadata standard name: UK GEMINI

Metadata standard version: 2.3

Point of contact

Centre for Environmental Data Analysis (CEDA)

Rutherford Appleton Laboratory , Harwell , Oxon , OX11 0QX , United Kingdom

01235446432

Overviews

Spatial extent

N

S

E

W

Provided by

Access to the portal

Read here the full details and access to the data.

Associated resources

Not available