Tidal zones - Channel

This product includes Shom 3D digital data on tidal currents in the Channel in shapefile and geotiff formats. These digital files provide information on tidal current components (speed and direction) on an hourly basis (6 hours either side of high water for a reference port), and for two typical tidal coefficients (45 and 95). Cherbourg is taken as the reference port. Three layers are available: Surface; mid-depth; and sea-bed.

Citation proposal
. Tidal zones - Channel. https://services.data.shom.fr:/geonetwork/telechargement/api/records/MAREE_COURANTS_COURANTS3D_MANCHE_PACK.xml

Simple

Date ( Creation ): 2012-10-17

Date ( Revision ): 2012-10-17

Identifier: http://www.shom.fr/MAREE_COURANTS/COURANTS3D_MANCHE_PACK

Point of contact

Shom

13 rue du Chatellier

BREST

29200

France

Keywords ( Theme )

Courants de marée 3D

GEMET - INSPIRE themes, version 1.0 ( Theme )

Oceanographic geographical features

Use limitation: Fees apply to user rights for this data. A specific contract must be signed for the commercial re-use of data.

Use limitation: Do not use for navigation

Use limitation: Fees apply to user rights for this data. A specific contract must be signed for the commercial re-use of data.

Access constraints: Restricted

Use constraints: Restricted

Access constraints: Other restrictions

Other constraints: Fees apply to user rights for this data. A specific contract must be signed for the commercial re-use of data. https://diffusion.shom.fr/pro/ressources/courants-de-maree.html

Classification: Unclassified

Spatial representation type: Vector

Metadata language: fre French

Character set: utf8 UTF8

Topic category

Oceans

Distribution format

ASCII-TXT
(
inapplicable
)
SHAPEFILE
(
inapplicable
)
GEOTIFF
(
inapplicable
)
GML
(
3.2
)

Point of contact

Shom

OnLine resource

Shom geoportal

OnLine resource

Shom marketplace

OnLine resource: COURANTS_3D_MANCHE_SURF_WMSR_3857
Access Point - WMS Surface layer

OnLine resource: COURANTS_3D_MANCHE_MI_PROF_WMSR_3857
Access Point - WMS mid-depth layer

OnLine resource: COURANTS_3D_MANCHE_FOND_WMSR_3857
Access Point - WMS sea-bed layer

Hierarchy level: Series

Conformance result

Date ( Publication ): 2010-11-23

Explanation: Information sur la conformité au règlement d'interopérabilité des séries et des services de données géographiques.

Pass: true

Conformance result

Date ( Publication ): 2013-12-10

Explanation: Information sur la conformité de la ressource à une spécification (non évalué).

Pass: true

Statement: Sources: The 3D tidal currents included in the files are taken from tidal wave propagation digital simulation models focusing on a maritime environment. The models cover a larger geographic footprint than the data files, which match the cover of the corresponding atlases. The results for the boundary areas of models are less precise than results nearer the centre of the scope modelled, for this reason, the geographic scope of the files was reduced to exclude all lower quality data. Validation: Data are then subjected to several validation stages: adjusting physical and numerical parameters, adjusting the models to in-situ measurements, adjusting the models to each other to ensure that overlap areas coincide, interpolating using an looser even mesh and removing all overlap to obtain data from the digital solution; data with the highest level of spatial resolution is retained in overlap areas.