bf096755-22a8-4962-a228-f3ba20f9a4ab c5e460ed-e927-41dc-804a-9604a0b45f34 Annick Battais Géosciences Rennes UMR6118 CNRS Université de Rennes1 Data Manager 02 23 23 61 08 annick.battais@univ-rennes1.fr 2022-07-15T15:01:09 ISO 19115:2003/19139 1.0 WGS 1984 SNO H+ : Ploemeur-Guidel Site 2014-01-03T00:00:00 https://www.osuris.fr/geonetwork/srv/metadata/037ddfbf-3d54-4322-9af9-06e8701a78da/ 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 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 Laurent Longuevergne Geosciences Rennes/Osur laurent.longuevergne@univ-rennes1.fr Annick Battais Géosciences Rennes UMR6118 CNRS Université de Rennes1 Data Manager 02 23 23 61 08 annick.battais@univ-rennes1.fr INSU CNRS insu@cnrs.fr https://www.osuris.fr/geonetwork/srv/api/records/037ddfbf-3d54-4322-9af9-06e8701a78da/attachments/ploemeur-01_s.png thumbnail png genetics microbiology biogeochemistry environmental chemistry environmental assessment environmental impact environmental change hydrography weather geophysics GEMET 2012-07-20 geonetwork.thesaurus.external.theme.gemet Ploemeur Soil Geology Environmental monitoring facilities GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.inspire-theme 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. 5000 geoscientificInformation 1990-01-01T00:00:00 -3.427734375 -2.713623046875 47.471923828125 47.87841796875 Les stats sont en ligne : http://hplus.ore.fr/drawdata/stats_ploemeur.csv KML 1.1 http://hplus.ore.fr WWW:LINK-1.0-http--link Site web du SOERE H+ http://hplus.ore.fr/en/database/acces-database WWW:LINK-1.0-http--link Acces à la base de données http://hplus.ore.fr/documents/guidel.kmz WWW:LINK-1.0-http--link Accès au fichier kmz du site de guidel https://deims.org/731f3ced-148d-4eb5-aa46-870fa22be713 WWW:LINK-1.0-http--link More informations on DEIMS LTER More informations on DEIMS LTER https://www.osuris.fr/geoserver/hplus/wms OGC:WMS hplus_ploemeur_guidel_points hplus_ploemeur_guidel_points http://hplus.ore.fr/documents/ploemeur.kmz WWW:LINK-1.0-http--link Accès au fichier kmz du site de ploemeur COMMISSION REGULATION (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2017-09-01T00:00:00 true ORE H+