FSLE - Maps of Finite Size Lyapunov Exponents and Orientations of the associated eigenvectors
Types of dataset: multimission altimeter products derived from Ssalto/Duacs products.
DOI: 10.24400/527896/a01-2022.002 - more metadata
Contents: multimission altimetry-derived gridded backward-in-time Finite Size Lyapunov Exponents and Orientations of associated eigenvectors. These products have been computed in collaboration between CLS, LOcean, CTOH and Cnes.
Use: study of ocean variability in different domains of the biology (mesoscale and sub-mesoscale circulation, seasonal variation...), assimilation, ....
Condition of access : These products are delivered for any purposes as stated in the licence agreement
Description: gridded product, provided in delayed time and routine production of 20-day latency. As a snapshot, each map represents the sea state for a given day. One spatial resolution is available: 1/25°x1/25° on a cartesian grid.
Detailed description: a complete description is available as well as some examples of applications.
Geographic coverage: global
Format: NetCDF-4 Classic with CF standards.
Tools:
- User Handbook: Ssalto/Duacs User Handbook : Finite Size Lyapunov Exponents and Orientations of associated eigenvectors Products
Code delivery: The method was initiated by F. d'Ovidio, LOcean. The products are delivered via the Aviso+ website. The source code is also distributed open source if you intend to apply your own parameters and/or in regional area (see full description of the method and code delivery). To use the code, please cite : "The code used to compute Finite Size Lyapunov Exponents, was developed in collaboration between LOCEAN (F. d'Ovidio) and CLS, is available under GNU General Public License".
Description: this product is calulated with maps of up-to-date datasets using all missions available at a given time (up to 5 satellites) which is the best in quality but not homogeneous over the time period.
Copyright : 1994 - ongoing CLS - Cnes - LOcean - CTOH
DT FSLE
Satellite | Authenticated access service  | Frequency | Data period | File weight |
|---|---|---|---|---|
| Merged | FTP Gridded data extraction tool OpenDap | 3-4 times per year | From 1994/01/04 -ongoing (up to 9 months delay) in version DT2021 | 140 MB per file |
FSLE on a routine production with 20-day latency
Satellite | Authenticated access service | Frequency | Data period | File weight |
|---|---|---|---|---|
| Merged | FTP Gridded data extraction tool Opendap | daily | From 2018/05/28-ongoing (D-20 days) In version DT2021 from 2021/12/14 | 140 MB per file |
Données
- Guide des produits.
Produits .- Produits hauteur de mer .
- Produits à valeur ajoutée .
- FSLE (Exposants de Lyapunov de taille finie).
- Trajectoires de tourbillons mésoéchelles .
- Produits de détection de sargasses .
- Produits vent/vagues .
- Produits auxiliaires .
- Produits altimétriques glace .
- Produits indicateurs océaniques .
- Produits simulés Ocean - Ocean data challenges .
- Produits in-situ .
- Accès aux données .
- Outils .
- Information sur les produits .
- CALVAL .
- Operational information .
