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From 1 - 10 / 709
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    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

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    This borehole hydrogeophysical logging data include optical imaging,acoustic logging,induction and electrical resistivity,natural and spectral gamma radioactivity,fiber optic measurements an d multiparameter probe logs.

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    Available data include monitoring data (weather parameters,piezometric levels and pumping flow rates).

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    This data set contains the temperature values at the position of 557 Pardosa saltans spiders, measured each minute during 90 minutes in a laboratory thermal gradient. Additionnal information on sex, development stage and morphology is provided for each individual. For details see Cabon et al 2023 in Journal of Thermal Biology: https://www-sciencedirect-com.passerelle.univ-rennes1.fr/science/article/pii/S0306456523002474 https://doi.org/10.1016/j.jtherbio.2023.103706

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    Etude de la diversité des communautés de pucerons et de coléoptères carabiques dans des parcelles de blé et de Maïs dans divers contextes paysagers au sein du bocage (ZAA) 24 parcelles de blé (12 chaque année) et 24 parcelles de Maïs (12 chaque année) échantillonnée de Mai à Septembre Echantillonnage des carabes par pot-pièges enterrés Echantillonnage des pucerons à vue Al Hassan, D., Parisey, N., Burel, F., Plantegenest M., Kindlmann, P., Butet, A.. 2012. Relationship between the abundance of aphids and their natural enemies in cereal fields and landscape composition. European Journal of Environmental Sciences, 2: 89-101 Al Hassan, D., Georgelin, E., Delattre, T., Burel, F., Plantegenest, M., Kindlmann, P., Butet, A. 2013. Does the presence of grassy strips and landscape grain affect the spatial distribution of aphids and their carabid predators ? Agricultural and Forest Entomology, 15: 24-33. Programme ANR Systerra LANDSCAPHID 2010-2014 « Influence du paysage sur les pucerons ravageurs des cultures et le potentiel de contrôle biologique ».

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    [résumé à traduire en anglais] Jeu de données (observations, prélèvements et analyses) sur les bois flottés, issus de la campagne de terrain de 2018 sur le site n°16, South Aulatsivik (HdCi_20). Les observations et les prélèvements (tranches/galettes de bois) sont organisés selon des quadrats [protocole à compléter si nécessaire]; la liste des points définissant ces quadrats se trouve dans le fichier 'Note_terrain_Nain_2018.xls'; ainsi que la liste des bois (échantillons) 'Récolte driftwood selon quadrats'. [localisations géographiques à revoir avec resp. projet]. Observations: volume, forme, état de conservation, photographies [à revoir avec resp. projet]. Prélèvements: a priori 111 échantillons 'bois' ('Driftwood'), plus quelques (3?) 'Old Driftwood' [à vérifier, carnet de terrain]; localisés au Canada. Analyses prévues: identification taxonomique, dendrochronologie, géochimie, C14 (pour les 'VDR'), [...]. [Mots-clés à compléter] Etendue_geo : (du site 16) 56°38'24.09"N;61°23'3.21"W; 56°36'2.95"N;61°22'56.89"W; 56°36'2.69"N;61°27'28.85"W; 56°38'29.91"N;61°22'40.60"W Liens et documents associés [à compléter] : liste des échantillons, des quadrats, description du protocole dans publis, liste des photos, couche carto [à compléter : revoir avec resp.projet] Keywords: Arctic, Subarctic, Greenland, Nunavik, Labrador-Nunatsiavut, Canada, Norse, Farming, Intercation Human-environment, Thule, Inuit, Natural-archives, Archaeological settlements, Archaeological-artefacts, Raw-materials, Climate, Environment, Landscape, Ecosytems, Biodiversity, Global-changes, Social-changes, Flora, Fauna, Soils, PalenvDNA, Perception, Memory, Heritage, Holocene, Last-Millenium

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    Available data include monitoring data (weather parameters,piezometric levels and pumping flow rates).

  • Stations for continuous measurement of hydrological, physical, chemical and sediment parameters have been installed on the Sélune river, as part of the scientific program to monitor the leveling of the Sélune dams. Measurements have been taken on at least an hourly basis since 2014 at the latest. Since 2019, these stations have been part of the Sélune Observatory, which is responsible for monitoring environmental parameters (biotic and abiotic). All stations measure turbidity, water level and conductivity. Some stations measure additional physico-chemical parameters such as pH, dissolved oxygen and chlorophyll concentration. Samples are also taken at upstream (Pont de Virey) and downstream (Pont de Signy) stations, for laboratory chemical analysis. This layer shows the location of flow measurement stations.

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    This dataset is the definitive set of locality boundaries for the state of Victoria as defined by Local Government and registered by the Registrar of Geographic Names. The boundaries are aligned to Vicmap Property. This dataset is part of the Vicmap Admin dataset series.

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    During National Science Week on Sunday 26th August 2007, Geoscience Australia opened its doors to the community to showcase a diverse range of work activities. Members of the public had the opportunity to discover how earthquakes are detected, pan for gold, tour the building, view Australia in 3D, become a seafloor detective and talk to the people who work for Australia's national geoscience research organisation. The photographs of that open day have been converted into thumbmail images and are available on the GA web site.