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Data Download (CCI SM v02.2)

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Data Download (CCI SM v02.2)

This global ECV soil moisture data set has been generated using active and passive microwave spaceborne instruments and covers the 36 year period from 1978 to 2014. The data set consists of three products: an active data set, a passive data set and a merged data set. It provides daily surface soil moisture with a spatial resolution of 0.25 degree.

The active data set was generated by the Vienna University of Vienna (TU Wien) based on observations from the C-band scatterometers on board of ERS-1, ERS-2 and METOP-A.

The passive data set was generated by the VU University Amsterdam in collaboration with NASA based on passive microwave observations from Nimbus 7 SMMR, DMSP SSM/I, TRMM TMI, Aqua AMSR-E, Coriolis WindSat, and GCOM-W1 AMSR2.

The new ESA CCI SM v02.2 has a significantly improved spatial and temporal coverage with respect to earlier versions, in particular for the period 2002-2006. Previous product versions had a limited data coverage during this period due to the failure of the ERS AMI sensor. The data gaps resulting from this failure have been largely filled with observations from AMSR-E. This makes the product more consistent for time series analysis.

Besides the data coverage, v02.2 feautures a significantly improved intercalibration between the AMSR-E, WindSat, and AMSR2 radiometers, which results in improved consistency, in particular after 2011.

Details on the intercalibration can be found in Parinussa et al. 2015 More information about the ESA CCI SM v02.2 product can be found in

The active, passive and merged products are freely available after completion of a simple registration. User Registration can be found here.

If you are interested in previous product versions, please send us a request at

For further information please visit the Documents and Frequently Asked Questions section of this website.