CATDS-PDC L4SM RZSM - 1 day global map of root zone soil moisture values from SMOS satellite

This product is a daily product of root zone soil moisture representative of the 0-1 m depth of the soil.

The base products, for all the CATDS-PDC (Centre Aval de Traitement des Données SMOS - Production & Dissemination Center) processing chains, are the SMOS L1B products from ESA (European Space Agency).

The L4SM RZSM is the daily product of root zone soil moisture (m3/m3) representative of the 0-1 m depth of the soil. The product contains also a quality index taking into account the presence of Radio Frequency Interference (RFI), low quality of retrieval of the input surface soil moisture, and a high fraction of non-nominal surfaces.

Products from reprocessing RE07 are available for the period 01/2010 - 05/2021. Products from operational (OPER) processing are available since 06/2021. Reprocessed products and operational products are derived using the same algorithm and configuration, hence ensuring the temporal continuity.

Date (Publication): 2022-12-07

Identifier: CATDS-PDC_L4SM_RZSM

Version: 339

Credit: CATDS (CNES, IFREMER, CESBIO)

Status: onGoing On going

Point of contact

Helpdesk CATDS

Author

CESBIO > Centre d'Etudes Spatiales de la Biosphère - Yann Kerr

Originator

Ifremer / CERSAT > Satellite Data Processing and Distribution Center of the French Research Institute for Exploitation of the Sea

Distributor

Ifremer / CERSAT > Satellite Data Processing and Distribution Center of the French Research Institute for Exploitation of the Sea

GEMET - INSPIRE themes, version 1.0

Oceanographic geographical features

Cersat - Project

SMOS
CATDS

Cersat - Latency

Less than 24 hours

Centre de données ODATIS

CDS-SAT-CERSAT

Type de jeux de donnée ODATIS

/Observational data/satellite

Thèmes Sextant

/Imagery/Satellite Imagery

GEMET - INSPIRE themes, version 1.0

Orthoimagery

Theme

SMOS
CATDS
CPDC
L3SM
Soil Moisture
Filtered
Land Product
RZSM
Root Zone Soil Moisture

Access constraints: OtherRestrictions

Use constraints: Product developed by Ifremer/CERSAT and funded in the frame of GMES MyOcean project. Authors : Emmanuelle Autret (eautret@ifremer.fr), Jean-François Piollé (jfpiolle@ifremer.fr)

Other constraints: CC-BY (Creative Commons - Attribution)

Other constraints: CATDS (2022). CATDS-PDC L4SM RZSM - 1 day global map of root zone soil moisture values from SMOS satellite. CATDS (CNES, IFREMER, CESBIO). https://doi.org/10.12770/316e77af-cb72-4312-96a3-3011cc5068d4. Dataset accessed [YYYY-MM-DD];

Spatial representation type: grid Grid

Denominator: 1

Distance: 25 km

Metadata language: English

Character set: utf8 UTF8

Topic category

Geoscientific information

Begin date: 2010-01-17

Reference system identifier: EPSG / WGS 84 / NSIDC EASE-Grid 2.0 Global (EPSG:6933) / 8.6

Reference system identifier: http://www.opengis.net/def/crs/EPSG/0/6933

Number of dimensions: 3

Dimension name: Column

Dimension size: 1388

Dimension name: Vertical

Dimension size: 584

Dimension name: Sample

Dimension size: 14

Cell geometry: Area

Transformation parameter availability: No

Distribution format

NetCDF ( netcdf 3 with 64 bit offset option )

OnLine resource: FTP Access ( WWW:DOWNLOAD )
FTP Access - All products are also available by ftp : server ftp.ifremer.fr, login ext-catds-cpdc, passwd catds2010, path Land_products/GRIDDED/... (same paths as in above https links)

OnLine resource: Processing and validation ( WWW:LINK )
Al Bitar Ahmad, & Mahmoodi Ali. (2020, November 30). Algorithm Theoretical Basis Document (ATBD) for the SMOS Level 4 Root Zone Soil Moisture (Version v30_01). Zenodo. http://doi.org/10.5281/zenodo.4298572