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FES (Finite Element Solution)- Global tide

FES2014

Types of dataset: auxiliary products
Contents: The FES2014 tides database includes 3 components:  tide elevations (amplitude and phase), tide currents (u and v) and tide loading on a 1/16°x1/16° grid. 

  1. Tide elevations: FES2014b ocean tide model is distributed; this model has been computed using the new FES2014 tidal loading grids.
    Two versions are available: 

    • Non extrapolated version: the model is defined on a 1/16° grid directly interpolated from the finite element native grid of the model. Folder is fes2014_elevations_and_load/fes2014b_elevations/
    • Extrapolated version: the above version has been extrapolated on the coasts in order to cover nearly entirely the coastal regions. The procedure is a simple extrapolation applied on 10 pixels and using mean values when necessary, it can be not enough accurate in some regions. Folder is fes2014_elevations_and_load/fes2014b_elevations_extrapolated/

  2. Tide currents: tidal curents derived from FES2014a model, directly interpolated from the finite element native grid. No extrapolation is done on the coasts for the currents. Folder is fes2014a_currents/
  3. Tide loading: the new FES2014a tide loading. Folder is fes2014_elevations_and_load/fes2014a_loadtide/ . FES2014_load must be used to compute the FES2014 geocentric (elastic) tide as follows: FES2014b geocentric (elastic) tide = FES2014b oceanic tide + FES2014a loading tide.

Use: coastal oceanography, operational oceanography, ocean circulation
Description: combined product based on a hydrodynamic model which assimilate altimeter data (Topex/ Poseidon, Jason-1, Jason-2, TP interleaved -J1 interleaved, ERS-1, ERS-2, and Envisat). (More information)
Geographic coverage: global
Format: NetCDF 4
Distribution media:

  • Data files are on the authenticated FTP into fes2014_elevations_and_load/ and fes2014a_currents/ folders. The subdirectories included all the 34 tidal components in a same and unique archive : K1, M2, M4 , N2 , O1 , P1 , Q1 , S1, S2 , K2 , 2N2, E2, J1, L2, La2, M3, M6, M8, Mf, MKS2, Mm, MN4, MS4, MSf, MSqm, Mtm, Mu2, N4, Nu2, R2, S4, Sa, Ssa, T2. To allow you to download as small as possible archives, the archives have been compressed using the xz program using the LZMA2 compression algorithms. To decompress the archive, you must use this command or 7-zip if you use Windows.
  • The code source and the .ini parameter files are delivered on a separated web page. The source code is also distributed open source. To use the code, please cite : "The code used to compute FES2014, was developed in collaboration between Legos, Noveltis, CLS Space Oceanography Division and CNES is available under GNU General Public License".

Condition of access: Tide currents are delivered for scientific purposes only as stated in the licence agreement. Further information :   Access to auxiliary products.
File weight: 2.2 GB for heights elevations/load and 5 GB for currents  

Copyright: 2014- ongoing Legos/Noveltis/Cnes/CLS

How to cite Aviso data?  
More information: Description, validation, main improvements

To get an access to the FES2014 product, please fill in, select the given product and valid the following form:

Ocean tide model FES2014 : elevations (left, in meters) and currents (right, in m/s) between 2016/09/18 and 2016/09/21. Credits Legos/Noveltis/Cnes/CLS.

Previous versions

FES2012

Types of dataset: auxiliary products
Contents: heights and/or currents of tidal constituents on a 1/16°x1/16° grid
Use: coastal oceanography, operational oceanography, ocean circulation
Description: combined product based on a hydrodynamic model which assimilate altimeter data (Topex/ Poseidon, Jason-1, Jason-2, ERS-1, ERS-2 and Envisat). (More information)
Geographic coverage: global
Format: NetCDF 4
Distribution media: FTP
Condition of access: products delivered for scientific purposes only as stated in the licence agreement. Further information :   Access to auxiliary products.
To get an access to the FES2012 product, please fill in, select the given product and valid the following form:

File weight: 1.9 GB for heights and 4 GB for currents (downloading heights is needed to compute currents)
Tools: source prediction algorithm in C

How to cite Aviso data?

Copyright: 2012- ongoing Legos/Noveltis/Cnes/CLS

FES2004

Types of dataset: auxiliary products
Contents: heights of tidal constituents on a 1/8°x1/8° grid
Use: coastal oceanography, operational oceanography, ocean circulation
Description: combined product based on a hydrodynamic model which assimilate tide gauges and altimeter data (Topex/ Poseidon and ERS-2). (More information)
Geographic coverage: global
Format: ASCII
Distribution media: FTP
Condition of access: All auxiliary product users need an account, see Access to auxiliary products.
To get an acces to the FES2004 product, please fill in, select the given product (on the second page of the form) and valid the following form:

File weight: 254 MB
Tools: source prediction algorithm in C with a fortran 77 interface

How to cite Aviso data?

Copyright: 1992- ongoing Legos/Cnes/CLS

FES99

Types of dataset: auxiliary products
Contents: heights of tidal constituents on a 1/4°x1/4° grid
Use: coastal oceanography, operational oceanography, ocean circulation
Description: combined product based on a hydrodynamic model which assimilate tide gauges and altimetric Topex/ Poseidon analyses. (More information)
Geographic coverage: global
Format: ASCII
Distribution media: FTP
Condition of access: All auxiliary product users need an account, see Access to auxiliary products.
To get an acces to FES99 product, please fill in, select the given product (on the second page of the form) and valid the following form:

File weight: 49 MB
Tools: source prediction algorithm in fortran/ C

How to cite Aviso data?

Copyright: 1992- ongoing Legos/Cnes/CLS

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