Related links

The following links relate to the Soil project.


The Quality Assurance for Soil Moisture project (QA4SM) provides an operational online validation service for soil moisture products.

QA4SM web service is developed by TU Wien GEO and AWST GmbH with funding from the Austrian Space Applications Programme (FFG). QA4SM aims to allow its users to validate soil moisture datasets in a traceable, transparent, reproducible and standardised fashion and to download the validation results for further use, for example in publications. For future versions of the ESA CCI SM product, QA4SM will be used.


Monthly averages of the ESA CCI SM data are hosted on a public data viewer available at

C3S Climate Data Store

The ESA CCI SM algorithm is used to generate C3S Soil Moisture data products available through the Copernicus Climate Data Store. This data in generated with a delay of a few days and therefore recommended especially for near-real-time applications. The climate data store provides a large number of different climate variables, background information on their generation, an easy to use web UI as well as an API to access the data.


The International Soil Moisture Network (ISMN) is an international cooperation to establish and maintain a global in-situ soil moisture database. This database is an essential means for validating and improving global satellite products, and land surface, climate, and hydrological models. ISMN is a combined effort of the Global Energy and Water Exchanges Project (GEWEX), the Committee on Earth Observation Satellites (CEOS), the Global Climate Observing System - Terrestrial Observation Panel for Climate (GCOS-TOPC), the Group of Earth Observation (GEO), and the Global Terrestrial Network on Hydrology (GTN-H). The International Soil Moisture Network has been made possible through financial support of the Earth Observation Programme of the European Space Agency (ESA) and the many voluntary contributions of scientists and networks from around the world.