CCI Soil Moisture - Phase 2

Climate Data Records of soil moisture are fundamental for improving our understanding of long-term dynamics in the coupled water, energy, and carbon cycles over land. To respond to this need, the European Space Agency (ESA) has supported the development and production of the first multi-decadal, global satellite-observed soil moisture (SM) dataset as part of its Climate Change Initiative (CCI) program. This product, named ESA CCI SM, combines various single-sensor active and passive microwave soil moisture products into three harmonised Climate Data Records: a merged active microwave, a merged passive microwave, and a combined active+passive microwave product. The ESA CCI SM project is currently in its second phase (Phase 2).

Project goals

The objective of CCI Soil Moisture is to produce the most complete and most consistent global soil moisture data record based on active and passive microwave sensors. Phase 2 sees the evolution of prototype ESA CCI SM processor, its integration, along with associated datasets, and eventual operation in a virtual cloud processing environment, hosted by the EODC.

Funding agency

  • ESA CCI Programme

Project duration

  • January 2011 - December 2017


  • Norwegian Institute for Air Research (NILU)
  • University College Cork (UCC)
  • Finnish Meteorological Institute (FMI)
  • AWST GmbH, Austria
  • Transmissivity / VanderSat B.V., the Netherlands
  • GeoVille GmbH, Austria
  • ETH Zürich, Switzerland
  • Earth Observation Data Centre for Water Resources Monitoring GmbH (EODC)

Main roles of CLIMERS

  • Scientific lead
  • Level 1 and Level 2 algorithm developments for scatterometers
  • Development of the merging algorithms
  • Development scientific software prototypes

CLIMERS members involved

Project Highlights

Official project URL