Along-track wave heights and wind speed Level-2+ (L2P)
Significant Wave Height (SWH) monomission along-track altimeter satellite product available for Sentinel-3A, Sentinel-3B and Sentinel-6 Michael Freilich missions in Near-Real-Time. SWH values are computed from the High Resolution Mode, also known as Synthetic Aperture Radar mode (SAR) and are calibrated relative to buoys. A validity flag and the applied correction are also provided.
Since April 2021, a new variable is included in the files : wind speed, computed by Gourrion (2002) algorithm using Collard (2005) table with PLRM sigma0 and SWH. Moreover, the values are cross-calibrated with Jason-3 standard F wind speed.
Simple
- Title
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Along-track wave heights and wind speed Level-2+ (L2P)
- Date (Creation)
- 2019-03-15
- Abstract
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Significant Wave Height (SWH) monomission along-track altimeter satellite product available for Sentinel-3A, Sentinel-3B and Sentinel-6 Michael Freilich missions in Near-Real-Time. SWH values are computed from the High Resolution Mode, also known as Synthetic Aperture Radar mode (SAR) and are calibrated relative to buoys. A validity flag and the applied correction are also provided.
Since April 2021, a new variable is included in the files : wind speed, computed by Gourrion (2002) algorithm using Collard (2005) table with PLRM sigma0 and SWH. Moreover, the values are cross-calibrated with Jason-3 standard F wind speed.
- Credit
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AVISO+
- Point of contact
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Organisation name Individual name Electronic mail address Role AVISO+
Service Desk
Dissemination Unit
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Centre de données ODATIS
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CDS-SAT-AVISO
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- Keywords
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vague, hauteur de vague
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Type de jeux de donnée ODATIS
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/Remote sensing
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Thèmatiques ODATIS
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Operational oceanography
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Processing level
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Level 2 P
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Ocean Hackathon - Ville
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La Rochelle
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ODATIS aggregation parameters and Essential Variable names
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Waves
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Wind
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- Use limitation
- Licence ouverte
- Access constraints
- Restricted
- Use constraints
- License
- Other legal constraints
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Citations: For Copernicus Sentinel-3 and Sentinel-6 Michael Freilich missions, please refer to the license agreement to explicitly describe the credits according to the use of the product (in English, section 13. License specific to Sentinel-3 L2P products): http://www.aviso.altimetry.fr/fileadmin/documents/data/License_Aviso.pdf
- Spatial representation type
- Grid
- Language
- Français
- Character set
- UTF8
- Topic category
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- Oceans
- Begin date
- 2019-02-21
- Geometric object type
- Complex
- Distribution format
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Name Version NetCDF
4
- Transfer size (in MB)
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0
- OnLine resource
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Protocol Linkage Name WWW:DOWNLOAD-1.0-http--download
WWW:DOWNLOAD-1.0-http--download
WWW:DOWNLOAD-1.0-link--download
https://dataterra:odatis@tds-odatis.aviso.altimetry.fr/thredds/catalog/dataset-l2p-uncross-calibrated-nrt-swh-s3a/catalog.html TDS fileserver SWH S3A
WWW:LINK
https://www.aviso.altimetry.fr/fr/donnees/produits/produits-vent/vagues/vagues-le-long-de-la-trace-l2p.html Further information on AVISO+
WWW:LINK
ftp://YOURLOGIN:PASSWORD@ftp-access.aviso.altimetry.fr/uncross-calibrated/open-ocean/near-real-time/l2p/swh/ Authenticated access through FTP
WWW:DOWNLOAD-1.0-link--download
https://dataterra:odatis@tds-odatis.aviso.altimetry.fr/thredds/catalog/dataset-l2p-uncross-calibrated-nrt-swh-s3b/catalog.html TDS fileserver SWH S3B
WWW:LINK
https://www.aviso.altimetry.fr/fileadmin/documents/data/tools/hdbk_L2P_WAVE_S3_S6.pdf Handbook
- Hierarchy level
- Dataset
- Statement
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References for Waves:
Sepulveda H. H., Queffeulou P. and Ardhuin F. (2015): Assessment of SARAL AltiKa wave height measurements relative to buoy, Jason-2 and Cryosat-2 data. Marine Geodesy, 38 (S1),449-465, doi: 10.1080/01490419.2014.1000470.
Queffeulou P. (2016): Validation of Jason-3 altimeter wave height measurements (poster). OSTST meeting, November 1-4, 2016, La Rochelle, France.
Queffeulou P. and Croizé-Fillon D. (2017): Global Altimeter SWH Data Set, version 11.4, February 2017. Technical report Ifremer. ftp://ftp.ifremer.fr/ifremer/cersat/products/swath/altimeters/waves/documentation/altimeter_wave_merge__11.4.pdf
References for Winds:
Table by (in french) Collard, F., 2005, Algorithmes de vent et période moyenne des vagues JASON à base de réseaux de neurones, BO-021-CLS-0407-RF, Boost Technologies, 33pp.
Algorithm by Gourrion, J., D. Vandemark, S. Bailey, B. Chapron, G. P. Gommenginger, P. G. Challenor, and M. A. Srokosz, 2002. A two-parameter wind speed algorithm for Ku-Band altimeters, J. Atmos. and Oceanic Tech., 19, 2030-2048.
Metadata
- File identifier
- 14a5bd69-8883-4890-a8ac-e3b79a41ad2c
- Metadata language
- Français
- Other language
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Language Character encoding English UTF8
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2023-05-22T07:09:56.37Z
- Metadata standard name
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ISO 19115:2003/19139 - SEXTANT
- Metadata standard version
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1.0