Along-track wave heights and wind speed Level-2+ (L2P)

Significant Wave Height (SWH) monomission along-track altimeter satellite product available for Sentinel-3A and Sentinel-3B 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.

 
Citation proposal
. Along-track wave heights and wind speed Level-2+ (L2P). https://services.mspdata.eu:/geonetwork/srv/api/records/14a5bd69-8883-4890-a8ac-e3b79a41ad2c

Simple

Date ( Creation )
2019-03-15
Unique resource identifier
Credit
AVISO+

  Distributor

Centre de données ODATIS Centre de données ODATIS ( Theme )
  • CDS-SAT-AVISO
Variables ODATIS Variables ODATIS ( Theme )
  • /Physical Oceanography/Waves , /Meteorology/Wind
Keywords
  • vague, hauteur de vague
Type de jeux de donnée ODATIS Type de jeux de donnée ODATIS ( Theme )
  • /Remote sensing
Thèmatiques ODATIS Thèmatiques ODATIS ( Theme )
  • Operational oceanography
Processing level Processing level ( processing-level )
  • Level 2 P
Use limitation
Licence ouverte Licence ouverte
Access constraints
Restricted
Use constraints
License
Other constraints
Citations: For Copernicus Sentinel-3 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
Metadata language
French
Character set
UTF8
Topic category
  • Oceans
N
S
E
W


Geometric object type
Complex
Distribution format
Units of distribution
Transfer size
0
Protocol
WWW:DOWNLOAD-1.0-http--download
Description
Protocol
WWW:DOWNLOAD-1.0-http--download
Description
OnLine resource
TDS fileserver SWH S3A  

TDS fileserver SWH S3A

OnLine resource
Further information on AVISO+  

Further information on AVISO+

OnLine resource
Authenticated access through FTP  

Authenticated access through FTP

OnLine resource
TDS fileserver SWH S3B  

TDS fileserver SWH S3B

OnLine resource
Handbook  

Handbook

Hierarchy level
Dataset
Statement

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   XML
Metadata language
French
Character set
UTF8
Hierarchy level
Dataset
Date stamp
2021-07-26T16:56:58
Metadata standard name
ISO 19115:2003/19139 - SEXTANT
Metadata standard version
1.0
 
 

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SWH_Sentinel

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