CATDS-PDC L3SM Simple UDP - 1 day soil moisture Simple User Data Product from SMOS satellite

This product is the daily product of soil moisture. The retrievals are based on a multi-orbit retrieval algorithm. Ascending and descending orbits are processed separately.

Simple

Date (Publication)
2022-02-14
Identifier
https://sextant.ifremer.fr/record/8db7102b-1b22-4db3-949d-e51269417aae
Identifier
CATDS-PDC_L3SM_SimpleUDP
Credit
CATDS (CNES, IFREMER, CESBIO)
Author
  CATDS - CATDS
Principal investigator
  CESBIO - Arnaud Mialon
Publisher
  CATDS (CNES, IFREMER, CESBIO)
Thèmes Sextant
  • /Imagery/Satellite Imagery
GEMET - INSPIRE themes, version 1.0
  • Orthoimagery
Theme
  • SMOS
  • CATDS
  • CPDC
  • L3SM
  • Soil Moisture
  • Simple UDP
  • Land Product
Use limitation
Creative Commons license to apply : Attribution (BY) : http://creativecommons.org/licenses/?lang=en
Access constraints
License
Use constraints
License
Spatial representation type
grid Grid
Denominator
1
Metadata language
English
Character set
utf8 UTF8
Topic category
  • Geoscientific information
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Begin date
2021-05-25
Reference system identifier
EPSG / WGS 84 / NSIDC EASE-Grid 2.0 Global (EPSG:6933) / 8.6
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
OPER-ASC ( WWW:DOWNLOAD )

OPER-ASC - Operational products (06/2021 - now), ascending orbits

OnLine resource
OPER-DESC ( WWW:DOWNLOAD )

OPER-DESC - Operational products (06/2021 - now), descending orbits

OnLine resource
RE07-ASC ( WWW:DOWNLOAD )

RE07-ASC - Reprocessed products (01/2010 - 05/2021), ascending orbits

OnLine resource
RE07-DESC ( WWW:DOWNLOAD )

RE07-DESC - Reprocessed products (01/2010 - 05/2021), descending orbits

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
CATDS Web portal ( WWW:LINK )

CATDS Web portal

OnLine resource
Reference ( WWW:LINK-1.0-http--publication-URL )

Al Bitar Ahmad, Mialon Arnaud, Kerr Yann H., Cabot Francois, Richaume Philippe, Jacquette Elsa, Quesney Arnaud, Mahmoodi Ali, Tarot Stephane, Parrens Marie, Al-Yaari Amen, Pellarin Thierry, Rodriguez-Fernandez Nemesio, Wigneron Jean-Pierre (2017). The global SMOS Level 3 daily soil moisture and brightness temperature maps. Earth System Science Data, 9(1), 293-315. Publisher's official version : http://doi.org/10.5194/essd-9-293-2017 , Open Access version : http://archimer.ifremer.fr/doc/00388/49941/

OnLine resource
Digital Object Identifier (DOI) ( DOI )
Hierarchy level
Dataset
Statement

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 - https://doi.org/10.57780/SM1-e20cf57 - from ESA (European Space Agency).

The L3SM simple User Data Product is the daily product of soil moisture. The retrievals are based on a multi-orbit retrieval algorithm. Ascending and descending orbits are processed separately.

Products from reprocessing RE07 are available for the period 01/2010 - 05/2021. Products from operational (OPER) processing are available since 25/05/2021. Reprocessed products and operational products are derived using the same algorithm and configuration, hence ensuring the temporal continuity.

File naming :

SM_clas_MIR_CLF3Sx_startdate_enddate_vvv_ccc_7

- clas : File class (OPER : operational mode, REXX : reprocessing xx)

- x : A for ascending orbit, D for descending orbit

- startdate : sensing start date/time of the data (format yyyymmddThhmiss)

- enddate : sensing end date/time of the data (format yyyymmddThhmiss)

- vvv : version number of the processor generating the product

- ccc : file counter

File format :

In each archive file (.tgz extension), there are two files

- A Header file (.HDR), which is a text file, in XML Earth Explorer Header format

- A Data file (.DBL.nc), which is a netcdf file, format variant 2 (netcdf 3 with 64 bits offset option)

Reference :

Al Bitar Ahmad, Mialon Arnaud, Kerr Yann H., Cabot Francois, Richaume Philippe, Jacquette Elsa, Quesney Arnaud, Mahmoodi Ali, Tarot Stephane, Parrens Marie, Al-Yaari Amen, Pellarin Thierry, Rodriguez-Fernandez Nemesio, Wigneron Jean-Pierre (2017). The global SMOS Level 3 daily soil moisture and brightness temperature maps. Earth System Science Data, 9(1), 293-315. Publisher's official version : http://doi.org/10.5194/essd-9-293-2017 , Open Access version : http://archimer.ifremer.fr/doc/00388/49941/

File identifier
8db7102b-1b22-4db3-949d-e51269417aae XML
Metadata language
English
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2025-05-15T23:16:20.491084Z
Metadata standard name
ISO 19115-3 - SEXTANT
Metadata standard version
1.0
Point of contact
  IFREMER - Tarot Stephane
Centre Bretagne - ZI de la Pointe du Diable - CS 10070 - 29280 Plouzané , Brest , France
02 98 22 40 55
 
 

Overviews

overview

Spatial extent

N
S
E
W
thumbnail


Keywords

CATDS CPDC L3SM Land Product SMOS Simple UDP Soil Moisture
GEMET - INSPIRE themes, version 1.0
Orthoimagery
Thèmes Sextant
/Imagery/Satellite Imagery

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Access to the portal

Associated resources

Not available