38b8e5e524e1449ab4b4994970752644 English 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 series series Centre for Environmental Data Analysis (CEDA) 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk pointOfContact 2026-04-30T02:31:53 UK GEMINI 2.3 WGS 84 ESA Soil Moisture Climate Change Initiative (Soil_Moisture_cci): Version 04.5 data collection 2019-12-19T17:56:57 publication 2019-12-19T17:56:57 creation https://catalogue.ceda.ac.uk/uuid/38b8e5e524e1449ab4b4994970752644 38b8e5e524e1449ab4b4994970752644 Centre for Environmental Data Analysis (CEDA) http://dx.doi.org/10.5285/38b8e5e524e1449ab4b4994970752644 doi Soil Moisture data (version 04.5) from the European Space Agency's (ESA) Soil Moisture Climate Change Initiative (CCI) project. This dataset collection contains three surface soil moisture datasets, alongside ancilliary data products. The ACTIVE and PASSIVE products have been created by fusing satellite scatterometer and radiometer soil moisture products respectively. In the case of the ACTIVE product, these have been derived from the AMI-WS and ASCAT satellite instruments and for the PASSIVE product from the satellite instruments SMMR, SSM/I, TMI, AMSR-E, WindSat, AMSR2 and SMOS. The COMBINED product is generated from the Level 2 active and passive instruments.. The homogenized and merged products present a global coverage of surface soil moisture at a spatial resolution of 0.25 degrees. The products are provided as global daily images, in NetCDF-4 classic file format, the PASSIVE and COMBINED products covering the period (yyyy-mm-dd) 1978-11-01 to 2018-12-31 and the ACTIVE product covering 1991-08-05 to 2018-12-31. The soil moisture data for the PASSIVE and the COMBINED product are provided in volumetric units [m3 m-3], while the ACTIVE soil moisture data are expressed in percent of saturation [%]. For information regarding the theoretical and algorithmic base of the datasets, please see the Algorithm Theoretical Baseline Document (ATBD). Other additional documentation and information documentation relating to the datasets can also be found on the CCI Soil Moisture project web site or in the Product Specification Document. The data set should be cited using the all of the following references: 1. Gruber, A., Scanlon, T., van der Schalie, R., Wagner, W., and Dorigo, W. (2019). Evolution of the ESA CCI Soil Moisture climate data records and their underlying merging methodology, Earth Syst. Sci. Data, 11, 717–739, https://doi.org/10.5194/essd-11-717-2019 2. 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 3. 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 Dorigo, Wouter Unavailable author Unavailable author Wagner, Wolfgang Unavailable author Unavailable author Gruber, A. Unavailable author Unavailable author Scanlon, T. Unavailable author Unavailable author Hahn, S. Unavailable author Unavailable author Kidd, R. Unavailable author Unavailable author Paulik, C Unavailable author Unavailable author Reimer, C. Unavailable author Unavailable author Van der Schalie, R. Unavailable author Unavailable author Preimesberger, Wolfgang Unavailable author Unavailable author Pasik, Adam Unavailable author Unavailable author De Jeu, R. Unavailable author Unavailable author Centre for Environmental Data Analysis (CEDA) custodian 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk custodian Centre for Environmental Data Analysis (CEDA) distributor 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk distributor Centre for Environmental Data Analysis (CEDA) point_of_contact 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk pointofContact CCI Open Data Portal point_of_contact support@ceda.ac.uk pointofContact Centre for Environmental Data Analysis (CEDA) publisher 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk publisher unknown series ESA Soil Moisture CCI atmospheric conditions theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication otherRestrictions Please contact the data centre for assistance on accessing data from this dataset collection. otherRestrictions 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. grid English climatologyMeteorologyAtmosphere -180.0 180.0 -90.0 90.0 1978-11-01T00:00:00 2018-12-31T23:59:59 Contact data centre for format details. Centre for Environmental Data Analysis (CEDA) Data Center Contact 01235446432 Rutherford Appleton Laboratory Harwell Oxon OX11 0QX United Kingdom support@ceda.ac.uk distributor https://catalogue.ceda.ac.uk/uuid/38b8e5e524e1449ab4b4994970752644 CEDA Data Catalogue Page Detail and access information for the resource information http://data.ceda.ac.uk/neodc/esacci/soil_moisture/docs/v04.5/ESA_CCI_SM_PSD_D1.2.1_v04.5.pdf Product Specification Document (PSD) D1.2.1 Version 4.5 No further details. information https://doi.org/10.1016/j.rse.2012.03.014 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. information https://www.earth-syst-sci-data-discuss.net/essd-2019-21/ Gruber, A., Scanlon, T., van der Schalie, R., Wagner, W., and Dorigo, W.: Evolution of the ESA CCI Soil Moisture Climate Data Records and their underlying merging methodology, Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2019-21, in review, 2019. No further details. information https://doi.org/10.1016/j.rse.2017.07.001 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. information https://doi.org/10.1109/TGRS.2017.2734070 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. information 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 No further details. information 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 No further details. information https://climate.esa.int/ ESA Climate Change Initiative website No further details. information https://climate.esa.int/projects/soil-moisture ESA CCI Soil Moisture project website No further details. information https://doi.org/10.5194/essd-11-717-2019 Gruber, A., Scanlon, T., van der Schalie, R., Wagner, W., and Dorigo, W. (2019). Evolution of the ESA CCI Soil Moisture climate data records and their underlying merging methodology, Earth Syst. Sci. Data, 11, 717–739, https://doi.org/10.5194/essd-11-717-2019 No further details. information http://dap.ceda.ac.uk/thredds/fileServer/neodc/esacci/soil_moisture/docs/v04.5/CCI2_Soil_Moisture_DL2.1_ATBD_v4.5.pdf CCI Soil Moisture Algorithm Theoretical Baseline Document (ATBD), Version 4.5 No further details. information http://dap.ceda.ac.uk/thredds/fileServer/neodc/esacci/soil_moisture/docs/v04.5/CCI2_Soil_Moisture_D3.3.1_Product_Users_Guide_v4.5.pdf Product User Guide No further details. information series 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 2010-12-08 Please see data lineage statements for each dataset within this collection for data lineage details.