Data from : A long-term dataset of topography and nearshore bathymetry at the macrotidal pocket beach of Porsmilin, France

The archived multi-sensor dataset detailed here presents the results of topographic and bathymetric surveys at Porsmilin, a macrotidal pocket (embayed) beach situated in Brittany, in northwest France. The Porsmilin beach survey program was launched in January 2003 by the Institut Universitaire Européen de la Mer (IUEM/Univ. Brest) and is continuing today in the framework of the French coastal observation service SNO-DYNALIT. The dataset contains over 16 years of beach profile surveys and a large collection of recurring high-resolution subtidal and subaerial digital elevation models (DEMs) obtained using various survey methods. The dataset is accompanied by time-series of inshore waves and water levels, and enriched metadata, that will facilitate its future reuse in coastal research.

The dataset is structured as follows, with separate metadata (child records) for 1) beach profiles, 2) topographic DEMs, 3) bathymetric DEMs, 4) fusion DEMs, 5) orthophotos, 6) inshore waves and 7) astronomical tides.

 
Citation proposal
Bertin Stéphane Bertin Stéphane Bertin Stéphane (UMR 6538 LGO UMR 6538 LGO UMR 6538 LGO ) - Floc'h France Floc'h France Floc'h France (UMR 6538 LGO UMR 6538 LGO UMR 6538 LGO ) - Le Dantec Nicolas Le Dantec Nicolas Le Dantec Nicolas (UMR 6538 LGO UMR 6538 LGO UMR 6538 LGO ) - Jaud Marion Jaud Marion Jaud Marion (UMS 3113 UMS 3113 UMS 3113 ) - Cancouët Romain Cancouët Romain Cancouët Romain (UMR 6538 LGO UMR 6538 LGO UMR 6538 LGO ) - Franzetti Marcaurelio Franzetti Marcaurelio Franzetti Marcaurelio (UMR 6538 LGO UMR 6538 LGO UMR 6538 LGO ) - Cuq Véronique Cuq Véronique Cuq Véronique (UMR 6554 LETG UMR 6554 LETG UMR 6554 LETG ) - Prunier Christophe Prunier Christophe Prunier Christophe (UMR 6538 LGO UMR 6538 LGO UMR 6538 LGO ) - Ammann Jérôme Ammann Jérôme Ammann Jérôme (UMR 6538 LGO UMR 6538 LGO UMR 6538 LGO ) - Augereau Emmanuel Augereau Emmanuel Augereau Emmanuel (UMR 6538 LGO UMR 6538 LGO UMR 6538 LGO ) - Lamarche Stevenn Lamarche Stevenn Lamarche Stevenn (UMR 6538 LGO UMR 6538 LGO UMR 6538 LGO ) - Belleney Déborah Belleney Déborah Belleney Déborah (UMR 6554 LETG UMR 6554 LETG UMR 6554 LETG ) - Rouan Mathias Rouan Mathias Rouan Mathias (UMR 6554 LETG UMR 6554 LETG UMR 6554 LETG ) - David Laurence David Laurence David Laurence (UMR 6554 LETG UMR 6554 LETG UMR 6554 LETG ) - Deschamps Anne Deschamps Anne Deschamps Anne (UMR 6538 LGO UMR 6538 LGO UMR 6538 LGO ) - Delacourt Christophe Delacourt Christophe Delacourt Christophe (UMR 6538 LGO UMR 6538 LGO UMR 6538 LGO ) - Suanez Serge Suanez Serge Suanez Serge (UMR 6554 LETG UMR 6554 LETG UMR 6554 LETG ) (2021) . Data from : A long-term dataset of topography and nearshore bathymetry at the macrotidal pocket beach of Porsmilin, France. https://services.mspdata.eu:/geonetwork/srv/api/records/74ecce0a-e650-4c41-9970-97e4602f1cd8

Simple

Date ( Publication )
2021-03-11
Identifier
https://portail.indigeo.fr/geonetwork/srv/metadata/74ecce0a-e650-4c41-9970-97e4602f1cd8
Credit
UMR 6538 LGO - UMR 6554 LETG
Status
Completed

  Author

  Author

  Author

  Author

  Author

  Author

  Author

  Author

  Author

  Author

  Author

  Author

  Author

  Author

  Author

  Author

  Author

  Point of contact

Keywords ( Theme )
  • SNO DYNALIT , Beach profile , Digital Elevation Model , Coastal monitoring , Nearshore waves , Astronomical tides , Bathymetry , Orthoimage
Keywords ( Place )
  • Brittany , Finistere , Porsmilin
GEMET - INSPIRE themes, version 1.0 GEMET - INSPIRE themes, version 1.0 ( Theme )
  • Orthoimagery , Elevation
Access constraints
Other restrictions
Other constraints
Pas de restriction d'accès public Pas de restriction d'accès public No limitations to public access
Use limitation
The “Grantor” grants the “Reuser” the free, non-exclusive right to “Reuse” the “Information” subject of this licence, for commercial or non-commercial purposes, worldwide and for an unlimited period, in accordance with the conditions stated below. The “Reuser” is free to reuse the “Information”: To reproduce it, copy it ; To adapt, modify, retrieve and transform it in order to create “derived information”, products and services ; To share, disseminate, redistribute, publish and transmit it ;To exploit it for commercial purposes, e.g., by combining it with other information, or by including it in his/her own product or application. Subject to: An acknowledgement of the authorship of the “Information”: its source (at least, the name of the “Grantor”) and the date of the most recent update of the reused “Information”. Specifically, the “Reuser” may satisfy this condition by pointing, via a hypertext link, to the source of “the Information” and so supplying an actual acknowledgement of its authorship.
Access constraints
License
Other constraints
Licence Ouverte Etalab v2.0 Licence Ouverte Etalab v2.0 Etalab Open Licence v2.0
Spatial representation type
Grid
Spatial representation type
Text, table
Distance
0.5  m
Metadata language
Français French
Character set
UTF8
Topic category
  • Geoscientific information
N
S
E
W


Unique resource identifier
RGF93 / Lambert-93 + NGF-IGN69 height (EPSG:5698) RGF93 / Lambert-93 + NGF-IGN69 height (EPSG:5698) RGF93 / Lambert-93 + NGF-IGN69 height (EPSG:5698)
Distribution format
  • Text (1.0 )

    Specification

  • ASC (1.0 )

    Specification

  • GeoTIFF (1.0 )

    Specification

  • MATLAB (2018b )

    Specification

  Publisher

OnLine resource
Digital Object Identifier (DOI)  

DOI of the dataset

OnLine resource
Data visualization  

Data visualization

OnLine resource
Bertin et al. (2022)  

Data paper

OnLine resource
Bertin et al. (2022b) - ESP&L  

Data quality evaluation

OnLine resource
Porsmilin_analysis.zip  

Porsmilin MATLAB codes

OnLine resource
SNO DYNALIT  

SNO DYNALIT

OnLine resource
Dehouck & al. (2009)  

Dehouck & al. (2009)

OnLine resource
Floc'h & al. (2016)  

Floc'h & al. (2016)

OnLine resource
Masselink & al. (2016)  

Masselink & al. (2016)

OnLine resource
Lemos & al. (2018)  

Lemos & al. (2018)

OnLine resource
Dodet & al. (2019)  

Dodet & al. (2019)

OnLine resource
Jaud & al. (2019)  

Jaud & al. (2019)

Hierarchy level
Dataset

Conformance result

Date ( Publication )
2010-12-08
Explanation
Article 7, paragraph 1, of Directive 2007/2 / EC corresponds to the technical procedures for interoperability: this is the regulation on interoperability: regulation n ° 1253/2013 of 21 October 2013 amending and supplementing Regulation n ° 1089/2010 of 23 November 2010
Pass
true
Statement
For allowing topographic surveys using RTK-GNSS (real-time kinematic global navigation satellite system), including data georeferencing and verification, geodetic survey marks (cast metal disks) were installed on stable ground (e.g., bedrock reef and human structures). The arrangement of survey marks evolved over the course of the monitoring program but it typically included one survey mark used as GNSS base station and a minimum of two for data verification. Fixed coordinates for the base station were obtained using long-static averaging with a tripod (~240 min), over several periods of time, and were post-processed in comparison with two nearby IGN GNSS stations. Topographic surveys are generally carried out during spring low tides to increase survey coverage.
Description
Coordinates used for the dataset are metric and referenced to the legal coordinate systems for metropolitan France, i.e., RGF93-Lambert 93 horizontal and NGF-IGN69 vertical (EPSG:5698). Elevation zero (m-NGF) corresponds to approximately 0.5 m below mean sea level (MSL).
Rationale
Geographic coordinate system
Description
Codes for browsing through the database and plotting selected survey products are made available with the dataset. Code is written in MATLAB (R2018b). Although MATLAB is a proprietary language, the .m files can be read with a text viewer.
Rationale
Code for analysis

Metadata

File identifier
74ecce0a-e650-4c41-9970-97e4602f1cd8   XML
Metadata language
Français French
Character set
UTF8
Hierarchy level
Series
Hierarchy level name
Parent
Date stamp
2025-02-20T14:26:43
Metadata standard name
ISO 19115
Metadata standard version
1.0

  Point of contact

 
 

  Overviews

A long-term dataset of topography and nearshore bathymetry at the macrotidal pocket beach of Porsmilin, France

Provided by

Access to the portal

Associated resources

Not available