ESA Soil Moisture Climate Change Initiative (Soil_Moisture_cci): 'Combined' Product, Version 02.2

The Soil Moisture CCI 'Combined' dataset is one of the three datasets created as part of the European Space Agency's (ESA) Soil Moisture Essential Climate Variable (ECV) CCI project. The product has been created by merging the "Active" and "Passive" datasets which were created for the project, these being respectively fusions of scatterometer and radiometer soil moisture products derived from the AMI-WS, ASCAT, SMMR, SSM/I, TMI, AMSR-E, WindSat, and AMSR2 satellite instruments.



The v02.2 product, provided as global daily images in NetCDF-4 classic file format, presents a global coverage of surface soil moisture at a spatial resolution of 0.25 degrees. It is provided in volumetric units [m3 m-3] and covers the period (yyyy-mm-dd) 1978-11-01 to 2014-12-31. For information regarding the theoretical and algorithmic base of the product, please see the Algorithm Theoretical Baseline Document version 2.0 or the paper by Wagner 2012, both available in the documentation section. An overview of all known errors associated with it is provided in the Comprehensive Error Characterization Report. Other additional reference documents and information relating to the dataset can also be found on the CCI Soil Moisture project web site or within the Product Specification Document.



The data set should be cited using all three of the following references:

1. Liu, Y. Y., W. A. Dorigo, et al. (2012). "Trend-preserving blending of passive and active microwave soil moisture retrievals." Remote Sensing of Environment 123: 280-297.

2. Liu, Y. Y., Parinussa, R. M., Dorigo, W. A., De Jeu, R. A. M., Wagner, W., van Dijk, A. I. J. M., McCabe, M. F., Evans, J. P. (2011). Developing an improved soil moisture dataset by blending passive and active microwave satellite-based retrievals. Hydrology and Earth System Sciences, 15, 425-436

3. Wagner, W., W. Dorigo, R. de Jeu, D. Fernandez, J. Benveniste, E. Haas, M. Ertl (2012). Fusion of active and passive microwave observations to create an Essential Climate Variable data record on soil moisture. ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences (ISPRS Annals), Volume I-7, XXII ISPRS Congress, Melbourne, Australia, 25 August-1 September 2012, 315-321

Simple

Date (Publication)
2016-03-08T13:55:18
Date (Creation)
2016-03-08T13:55:18
Citation identifier
https://catalogue.ceda.ac.uk/uuid/c89cb1c86f42456bb84e49ea06621c7e
Citation identifier
Centre for Environmental Data Analysis (CEDA) / c89cb1c86f42456bb84e49ea06621c7e
Point of contact
Organisation name Individual name Electronic mail address Role

Unavailable

Wagner, Wolfgang

Unavailable

 		Author

Unavailable

Dorigo, Wouter

Unavailable

 		Author

Unavailable

Chung, D.

Unavailable

 		Author

Unavailable

Gruber, A.

Unavailable

 		Author

Unavailable

Hahn, S.

Unavailable

 		Author

Unavailable

Kidd, R.

Unavailable

 		Author

Unavailable

Liu, Y. Y.

Unavailable

 		Author

Unavailable

Mistelbauer, T.

Unavailable

 		Author

Unavailable

Parinussa, R.

Unavailable

 		Author

Unavailable

Paulik, C

Unavailable

 		Author

Unavailable

Reimer, C.

Unavailable

 		Author

Unavailable

Van der Schalie, R.

Unavailable

 		Author

Unavailable

De Jeu, R.

Unavailable

 		Author

Unavailable

Melzer, T.

Unavailable

 		Author

Unavailable

Vreugdenhil, M.

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

Unavailable

Dorigo, Wouter

Unavailable

 		pointofContact

Centre for Environmental Data Analysis (CEDA)

support@ceda.ac.uk

Publisher
Maintenance and update frequency
Not planned
Update scope
Dataset
Keywords

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_soilmoisture_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
N
S
E
W
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Begin date
1978-11-01T00:00:00
End date
2014-12-31T00:00:00
Unique resource identifier
WGS 84
Distribution format
Name Version

Data is in NetCDF 4
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/c89cb1c86f42456bb84e49ea06621c7e

CEDA Data Catalogue Page
OnLine resource
Protocol Linkage Name
http://data.ceda.ac.uk/neodc/esacci/soil_moisture/data/daily_files/COMBINED/v02.2

DOWNLOAD
OnLine resource
Protocol Linkage Name
http://publik.tuwien.ac.at/files/PubDat_209402.pdf

Wagner, 2012: FUSION OF ACTIVE AND PASSIVE MICROWAVE OBSERVATIONS TO CREATE AN ESSENTIAL CLIMATE VARIABLE DATA RECORD ON SOIL MOISTURE

OnLine resource
Protocol Linkage Name
http://data.ceda.ac.uk/neodc/esacci/soil_moisture/docs/ESA_CCI_SM_Product_Specification_Document_2.5.pdf

ECV Soil Moisture Product Specification Document version 2.5
OnLine resource
Protocol Linkage Name
http://dx.doi.org/10.1016/j.rse.2012.03.014

Liu et al., 2012 Trend-preserving blending of passive and active microwave soil moisture retrievals
OnLine resource
Protocol Linkage Name
http://www.hydrol-earth-syst-sci.net/15/425/2011/hess-15-425-2011.html

Liu et al., 2011 Developing an improved soil moisture dataset by blending passive and active microwave satellite-based retrievals
OnLine resource
Protocol Linkage Name
http://data.ceda.ac.uk/neodc/esacci/soil_moisture/docs/v02.2/CCI2_Soil_Moisture_DL2.1_ATBD_v2.2_01_Executive_Summary.pdf

Algorithm Theoretical Baseline Document (ATBD) Executive Summary
OnLine resource
Protocol Linkage Name
http://data.ceda.ac.uk/neodc/esacci/soil_moisture/docs/CCI2_Soil_Moisture_D3.3.0_Product_Users_Guide_1.0.pdf

Product User Guide
OnLine resource
Protocol Linkage Name
http://data.ceda.ac.uk/neodc/esacci/soil_moisture/metadata/sample_images/ESACCI-SOILMOISTURE-L3S-SSMV-COMBINED-20080401000000-fv02.1.png

Sample Image
OnLine resource
Protocol Linkage Name
http://data.ceda.ac.uk/neodc/esacci/soil_moisture/docs/v02.2/CCI2_Soil_Moisture_DL2.1_ATBD_v2.2_03_passive.pdf

Algorithm Theoretical Baseline Document (ATBD) D2.1 Version 2.2: Soil Moisture Retrievals from Passive Microwave Sensors
OnLine resource
Protocol Linkage Name
https://climate.esa.int

ESA Climate Change Initiative webpage
OnLine resource
Protocol Linkage Name
https://climate.esa.int/projects/soil-moisture

ESA CCI Soil Moisture project website
OnLine resource
Protocol Linkage Name
http://data.ceda.ac.uk/neodc/esacci/soil_moisture/docs/v02.2/CCI2_Soil_Moisture_DL2.1_ATBD_v2.2_02_active.pdf

Algorithm Theoretical Baseline Document (ATBD) D2.1 Version 2.2: Active Soil Moisture Retrievals
OnLine resource
Protocol Linkage Name
http://data.ceda.ac.uk/neodc/esacci/soil_moisture/docs/v02.2/CCI2_Soil_Moisture_DL2.1_ATBD_v2.2_04_merging.pdf

Algorithm Theoretical Baseline Document (ATBD) D2.1 Version 2.2 Merging Active and Passive Soil Moisture Retrievals
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

Data were processed by the ESA CCI Soil Moisture project team and transferred to CEDA for the ESA CCI Open Data Portal Project.

This dataset forms part of the v02.2 Soil Moisture dataset (doi:10.5285/3729b3fbbb434930bf65d82f9b00111c. http://dx.doi.org/10.5285/3729b3fbbb434930bf65d82f9b00111c )

Metadata

File identifier
c89cb1c86f42456bb84e49ea06621c7e XML
Metadata language
English
Character set
UTF8
Parent identifier
ESA Soil Moisture Climate Change Initiative (Soil_Moisture_cci): Version 02.2 data collection

3729b3fbbb434930bf65d82f9b00111c
Hierarchy level
Dataset
Date stamp
2026-02-05T03:07:10
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
 
 

Overviews

Spatial extent

thumbnail

Keywords

GEMET - INSPIRE themes, version 1.0

orthoimagery


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