ESA Soil Moisture Climate Change Initiative (Soil_Moisture_cci): 'Passive' Product, Version 04.2

The Soil Moisture CCI 'Passive' 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 fusing radiometer soil moisture products, merging data from the SMMR, SSM/I, TMI, AMSR-E, WindSat, AMSR2 and SMOS satellite instruments. 'Active' and 'Combined' products have also been created, the 'Active' product being a fusion of AMI-WS and ASCAT derived scatterometer products and the 'Combined Product' being a blended product based on the former two data sets.

The v04.2 Passive product presents a global coverage of surface soil moisture at a spatial resolution of 0.25 degrees. The product is provided in volumetric units [m3 m-3] and covers the period (yyyy-mm-dd) 1978-11-01 to 2016-12-31. It consists of global daily images stored within yearly folders and are NetCDF-4 classic file formatted. For information regarding the theoretical and algorithmic base of the product, please see the Algorithm Theoretical Baseline Document. 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. Dorigo, W.A., Wagner, W., Albergel, C., Albrecht, F., Balsamo, G., Brocca, L., Chung, D., Ertl, M., Forkel, M., Gruber, A., Haas, E., Hamer, D. P. Hirschi, M., Ikonen, J., De Jeu, R. Kidd, R. Lahoz, W., Liu, Y.Y., Miralles, D., Lecomte, P. (2017). ESA CCI Soil Moisture for improved Earth system understanding: State-of-the art and future directions. In Remote Sensing of Environment, 2017, ISSN 0034-4257, https://doi.org/10.1016/j.rse.2017.07.001

2. Gruber, A., Dorigo, W. A., Crow, W., Wagner W. (2017). Triple Collocation-Based Merging of Satellite Soil Moisture Retrievals. IEEE Transactions on Geoscience and Remote Sensing. PP. 1-13. 10.1109/TGRS.2017.2734070

3. Liu, Y.Y., Dorigo, W.A., Parinussa, R.M., de Jeu, R.A.M. , Wagner, W., McCabe, M.F., Evans, J.P., van Dijk, A.I.J.M. (2012). Trend-preserving blending of passive and active microwave soil moisture retrievals, Remote Sensing of Environment, 123, 280-297, doi: 10.1016/j.rse.2012.03.014

Date (Publication): 2018-06-25T14:29:01

Date (Creation): 2018-06-25T14:29:01

Identifier: https://catalogue.ceda.ac.uk/uuid/a4f9546935a644d3b3260b7f6a0a183f

Identifier: Centre for Environmental Data Analysis (CEDA) / a4f9546935a644d3b3260b7f6a0a183f

Identifier: alternative.identifier / esacci.SOILMOISTURE.day.L3S.SSMV.multi-sensor.multi-platform.PASSIVE.04-2.r1.v20180618

Author

Unavailable - Dorigo, Wouter ( author )

Author

Unavailable - Wagner, Wolfgang ( author )

Author

Unavailable - Gruber, A. ( author )

Author

Unavailable - Scanlon, T. ( author )

Author

Unavailable - Hahn, S. ( author )

Author

Unavailable - Kidd, R. ( author )

Author

Unavailable - Paulik, C ( author )

Author

Unavailable - Reimer, C. ( author )

Author

Unavailable - Van der Schalie, R. ( author )

Author

Unavailable - De Jeu, R. ( 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

pointofContact

CCI Open Data Portal - point_of_contact

Publisher

Centre for Environmental Data Analysis (CEDA) - publisher

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

01235446432

Maintenance and update frequency: notPlanned Not planned

Update scope: dataset Dataset

Keywords

GEMET - INSPIRE themes, version 1.0

orthoimagery

Access constraints: otherRestrictions Other restrictions

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

Use constraints: otherRestrictions 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 Grid

Metadata language: EnglishEnglish

Topic category

Imagery base maps earth cover

Begin date: 1978-11-01T00:00:00

End date: 2016-12-31T23:59:59

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: Liu et al., 2011 Developing an improved soil moisture dataset by blending passive and active microwave satellite-based retrievals
No further details.

OnLine resource: Wagner, 2012: FUSION OF ACTIVE AND PASSIVE MICROWAVE OBSERVATIONS TO CREATE AN ESSENTIAL CLIMATE VARIABLE DATA RECORD ON SOIL MOISTURE
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OnLine resource: Sample Image
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OnLine resource: Product User Guide
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OnLine resource: Dorigo, W.A., Wagner, W., Albergel, C., Albrecht, F., Balsamo, G., Brocca, L., Chung, D., Ertl, M., Forkel, M., Gruber, A., Haas, E., Hamer, D. P. Hirschi, M., Ikonen, J., De Jeu, R. Kidd, R. Lahoz, W., Liu, Y.Y., Miralles, D., Lecomte, P. (2017). ESA CCI Soil Moisture for improved Earth system understanding: State-of-the art and future directions. In Remote Sensing of Environment, 2017, ISSN 0034-4257, https://doi.org/10.1016/j.rse.2017.07.001
No further details.

OnLine resource: Gruber, A., Dorigo, W. A., Crow, W., Wagner W. (2017). Triple Collocation-Based Merging of Satellite Soil Moisture Retrievals. IEEE Transactions on Geoscience and Remote Sensing. PP. 1-13. 10.1109/TGRS.2017.2734070
No further details.

OnLine resource: Liu, Y.Y., Dorigo, W.A., Parinussa, R.M., de Jeu, R.A.M. , Wagner, W., McCabe, M.F., Evans, J.P., van Dijk, A.I.J.M. (2012). Trend-preserving blending of passive and active microwave soil moisture retrievals, Remote Sensing of Environment, 123, 280-297, doi: 10.1016/j.rse.2012.03.014
No further details.

OnLine resource: ESA CCI Soil Moisture project website
No further details.

OnLine resource: Product Specification Document (PSD) D1.2.1 Version 4.2
No further details.

OnLine resource: Algorithm Theoretical Baseline Document (ATBD) D2.1 Version 04.2 Executive Summary
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OnLine resource: Algorithm Theoretical Baseline Document (ATBD) D2.1 Version 04.2 Soil Moisture Retrievals from Passive Microwave Sensors
No further details.

OnLine resource: Suggested display metadata for display_metadata_esacci.SOILMOISTURE.day.L3S.SSMV.multi-sensor.multi-platform.PASSIVE.04-2.r1.json
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Hierarchy level: dataset Dataset

Conformance result

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 v04.2 Soil Moisture dataset (doi: 10.5285/3a8a94c3fa464d68b6d70df291afd457 https://doi.org/10.5285/3a8a94c3fa464d68b6d70df291afd457)

File identifier: a4f9546935a644d3b3260b7f6a0a183f XML

Metadata language: EnglishEnglish

Character set: 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 UTF8

Parent identifier: ESA Soil Moisture Climate Change Initiative (Soil_Moisture_cci): Version 04.2 data collection 3a8a94c3fa464d68b6d70df291afd457

Hierarchy level: dataset Dataset

Date stamp: 2025-11-15T03:16:02

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

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