Earth System Science Data
Earth System Science Data
Earth System Science Data
Articles | Volume 18, issue 6
Articles | Volume 18, issue 6
https://doi.org/10.5194/essd-18-4393-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-18-4393-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 6
Data description article
 | 
26 Jun 2026
Data description article |  | 26 Jun 2026

Next-generation Metop ASCAT surface soil moisture datasets from EUMETSAT H SAF

Sebastian Hahn, Thomas Melzer, and Wolfgang Wagner

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Latest update: 26 Jun 2026
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Short summary
This article presents the latest version of the H SAF (Satellite Application Facility on Support to Operational Hydrology and Water Management) ASCAT (Advanced Scatterometer) SSM (surface soil moisture) datasets, unifying the NRT (near real-time) product with the historical offline data record. This release now applies the latest retrieval algorithm to both data streams, creating a consistent and unified data stream that is further complemented by a new, high-resolution 6.25 km sampling SSM product. The H SAF ASCAT SSM datasets are publicly available from https://hsaf.meteoam.it.
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