SMOS Soil Freeze and Thaw State
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subject: climatologyMeteorologyAtmosphere
description: The SMOS Level 3 Freeze and Thaw (F/T) product provides daily information on the soil state in the Northern Hemisphere based on SMOS observations and associated ancillary data. Daily products, in NetCDF format, are generated by the Finnish Meteorological Institute (FMI) and are available from 2010 onwards. The processing algorithm makes use of gridded Level 3 brightness temperatures provided by CATDS (https://www.catds.fr). The data is provided in the Equal-Area Scalable Earth Grid (EASE2-Grid), at 25 km x 25 km resolution. For an optimal exploitation of this dataset, please refer to the Resources section below to access Product Specifications, read-me-first notes, etc.
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theme: PUBLIC
identifier: Identifier
  notation: https://doi.org/10.57780/sm1-fbf89e0
  creator: https://doi.org/
was generated by: Activity
  started at time: 2010-06-01T00:00:00.000Z
theme: Orthoimagery
theme: ESA_open_and_free
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access rights: Utilisation of this data is subject to ESA's Earth Observation Terms and Conditions https://earth.esa.int/eogateway/documents/20142/1564626/Terms-and-Conditions-for-the-use-of-ESA-Data.pdf
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language: EN
bibliographic citation: European Space Agency, 2023, SMOS Soil Freeze and Thaw State, Version 300
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  has name: ESA/ESRIN
  has address: Address
    street-address: Largo Galileo Galilei 1
    postal-code: 00044
    locality: Frascati (Roma)
    country-name: Italy
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access URL: https://smos-diss.eo.esa.int/oads/meta/L3_FT_Open/index/
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modified: 2019-05-31T00:00:00.000Z
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  start date: 2010-06-01T00:00:00.000Z

EARTH SCIENCE>CRYOSPHERE>FROZEN GROUND
type: Concept
in scheme: https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/sciencekeywords

SMOS Software Tools
type: Document
description: Software Tools

PUBLIC
type: Concept
in scheme: http://publications.europa.eu/resource/authority/access-right

EARTH SCIENCE>LAND SURFACE
type: Concept
in scheme: https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/sciencekeywords

SMOS
type: Entity
in scheme: https://earth.esa.int/concepts/concept_scheme/platforms
type: Concept

MIRAS
type: Entity
in scheme: https://earth.esa.int/concepts/concept_scheme/instruments
type: Concept

Orthoimagery
type: Concept
in scheme: http://www.eionet.europa.eu/gemet/inspire_themes

ESA_open_and_free
type: Concept
in scheme: https://maap.eo.esa.int/metadata-codelist/access-right

Read
type: Document
description: me-first note for the release of SMOS Level 3 Soil F/T data products - Release Note

Get Help?
type: Document
description: ESA Earth Observation User Services Portal

Interferometric Radiometers
type: Concept
in scheme: https://earth.esa.int/concepts/concept_scheme/instruments

Land Surface
type: Concept
in scheme: https://earth.esa.int/concepts/concept_scheme/earth-topics

CatalogRecord
source: https://fedeo.ceos.org/collections/L3_FT_Open
modified: 2026-06-08T07:24:48Z
conforms to: https://joinup.ec.europa.eu/release/geodcat-ap/20

https://fedeo.ceos.org/collections/L3_FT_Open
type: CatalogRecord
conforms to: ISO19139-2

SMOS Level 3 Soil F/T Products Description Document
type: Document
description: Product Specifications

MIRAS
type: Concept
in scheme: https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/instruments

Frozen Ground and Permafrost
type: Concept
in scheme: https://earth.esa.int/concepts/concept_scheme/earth-topics

SMOS
type: Concept
in scheme: https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms

SMOS Level 3 Soil F/T Service at the Finnish Meteorological Institute (FMI)
type: Document
description: External resources

SMOS Level 3 Soil F/T Algorithm Theoretical Basis Document
type: Document
description: Algorithm Theoretical Basis Document