SNO H+ : Ploemeur-Guidel Site

The Ploemeur-Guidel observatory (Britanny, France) is focusing on surface-depth relationships in a fractured crystalline geological context and oceanic climate. It is built on 2 sub-sites, one highly anthropized, the other in natural state. In Ploemeur, groundwater has been pumped since 1991, supplying more than 1 million m3 of clean drinking water annual at a sustainable rate. Such high productivity is explained the specific fractured network in granite and micaschists, draining deep geological layers (~400 m). Extracted water quality is very good, with limited nitrate concentration, in a region that has been strongly affected by widespread pollution. Guidel site is in a similar, but natural context. Deep iron-rich groundwater is upflowing, creating surface and deep groundwater-dependent ecosystems, and feeding a classified coastal wetland. Both sites have a very dense equipment to study rapid to long-term surface-depth exchanges: a flux tower, unsaturated zone monitoring, a network of ~50 shallow (<10m) and deep boreholes (>80m), hydrochemical, temperature and deformation. An well-characterized fractured experimental site offers the possibility to conduct experiments to test innovative instruments and develop new methodologies

Date (Creation): 2014-01-03T00:00:00

Citation identifier: https://www.osuris.fr/geonetwork/srv/metadata/037ddfbf-3d54-4322-9af9-06e8701a78da/

Purpose: Ploemeur combines both monitoring and experimental objectives: (1) Develop innovative methods for imaging subsurface structure and flow in highly heterogeneous environments; (2) Investigate the aquifer vulnerability to climatic and anthropogenic pressures: (3) Study the environment’s chemical reactivity, and water quality as extraction proceeds; (4) Estime water residence time and travel time distributions; (5) Acquire the data necessary for testing and validating hydrogeologic modeling methods designed for fractured environments. Close interactions are maintained with the local water development board

Status: On going

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Geosciences Rennes/Osur	Laurent Longuevergne	laurent.longuevergne@univ-rennes1.fr	Author
Géosciences Rennes UMR6118 CNRS Université de Rennes1	Annick Battais	annick.battais@univ-rennes1.fr	Custodian
INSU CNRS		insu@cnrs.fr	Owner

Maintenance and update frequency: As needed

GEMET

genetics
microbiology
biogeochemistry
environmental chemistry
environmental assessment
environmental impact
environmental change
hydrography
weather
geophysics

Place

Ploemeur

GEMET - INSPIRE themes, version 1.0

Soil
Geology
Environmental monitoring facilities

Use limitation: The opportunity to collaborate on the project using the dataset

The data provider is given and agrees to a statement of uses to which the dataset will be put. See http://hplus.ore.fr/en/.Mention source and last update .

Access constraints: License

Use constraints: License

Spatial representation type: Vector

Denominator: 5000

Language: English

Character set: UTF8

Topic category

Geoscientific information

Begin date: 1990-01-01T00:00:00

Supplemental Information: Les stats sont en ligne :

http://hplus.ore.fr/drawdata/stats_ploemeur.csv

Reference system identifier: WGS 1984

Distribution format

Name	Version
KML	1.1

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--link	http://hplus.ore.fr	Site web du SOERE H+
WWW:LINK-1.0-http--link	http://hplus.ore.fr/en/database/acces-database	Acces à la base de données
WWW:LINK-1.0-http--link	http://hplus.ore.fr/documents/guidel.kmz	Accès au fichier kmz du site de guidel
WWW:LINK-1.0-http--link	https://deims.org/731f3ced-148d-4eb5-aa46-870fa22be713	More informations on DEIMS LTER
OGC:WMS	https://www.osuris.fr/geoserver/hplus/wms	hplus_ploemeur_guidel_points

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--link	http://hplus.ore.fr/documents/ploemeur.kmz	Accès au fichier kmz du site de ploemeur

Hierarchy level: Dataset

Conformance result

Date (Publication): 2017-09-01T00:00:00

Pass: Yes

Statement: ORE H+

Metadata

File identifier: bf096755-22a8-4962-a228-f3ba20f9a4ab XML

Metadata language: English

Character set: UTF8

Parent identifier: SNO H+ : Base de données de l'Observatoire de Recherche en Environnement en HYDROGEOLOGIE
c5e460ed-e927-41dc-804a-9604a0b45f34

Hierarchy level: Dataset

Date stamp: 2022-07-15T15:01:09

Metadata standard name: ISO 19115:2003/19139

Metadata standard version: 1.0

Metadata author

Organisation name	Individual name	Electronic mail address	Role
Géosciences Rennes UMR6118 CNRS Université de Rennes1	Annick Battais	annick.battais@univ-rennes1.fr	Point of contact

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