FSLE - Maps of Finite Size Lyapunov Exponents and Orientations of the associated eigenvectors

Types of dataset: multimission altimeter products derived from Ssalto/Duacs products.
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 devoted to scientific applications and non-commercial use
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:

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 FLSE


Satellite
Authenticated access service Frequency Data period File weight
Merged FTP
Gridded data extraction tool
OpdenDap
3-4 times per year From 1994/01/04 -ongoing (up to 9 months delay) 140 MB per file

FLSE 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) 140 MB per file