Towards a Support to Stakeholders’ Collaboration During a Loire River Major Flooding

2015 ◽  
pp. 183-193 ◽  
Author(s):  
Audrey Fertier ◽  
Anne-Marie Barthe-Delanoë ◽  
Johan Manceau ◽  
Sébastien Truptil ◽  
Frédérick Bénaben
Keyword(s):  
Loire River

scholarly journals Radionuclides concentrations in the Loire river system resulting from routine discharges of five nuclear power plants: assessment of dose to man

2002 ◽  
Vol 37 (4) ◽  
pp. 399-410 ◽  
Author(s):  
F. Siclet ◽  
M. Luck ◽  
J. G. Le Dortz ◽  
C. Damois ◽  
P. Ciffroy ◽  
...  
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
River System ◽  
Loire River

scholarly journals Quantification of the Beauce's Groundwater contribution to the Loire River discharge using satellite infrared imagery

2015 ◽  
Vol 12 (2) ◽  
pp. 2047-2080 ◽  
Author(s):  
E. Lalot ◽  
F. Curie ◽  
V. Wawrzyniak ◽  
S. Schomburgk ◽  
H. Piegay ◽  
...  
Keyword(s):  
Heat Budget ◽  
Groundwater Discharge ◽  
Winter Period ◽  
River Temperature ◽  
Longitudinal Temperature ◽  
Catchment Areas ◽  
Main Discharge ◽  
Heat Budgets ◽  
Loire River

Abstract. Seven Landsat Thermal InfraRed (TIR) images, taken over the period 2000–2010, were used to establish longitudinal temperature profiles of the middle Loire River, where it flows above the Beauce aquifer. Results showed that 75% of the temperature differences, between in situ observations and TIR image based estimations, remained within the ±1 °C interval. The groundwater discharge along the River course was quantified for each identified groundwater catchment areas using a heat budget based on the Loire River temperature variations, estimated from the TIR images. The main discharge area of the Beauce aquifer into the Loire River was located between river kilometers 630 and 650. This result confirms what was obtained using a groundwater budget and spatially locates groundwater input within the Middle sector of the Loire River. According to the heat budgets, groundwater discharge is higher during winter period (13.5 m3 s−1) than during summer (5.3 m3 s−1). Groundwater input is also higher during the flow recession periods of the Loire River.

Enduring Past: Megalithic Tombs of Brittany and the Roman Occupation in Western France

2015 ◽  
Author(s):  
Mara Vejby
Keyword(s):  
Iron Age ◽  
Initial Phase ◽  
Roman Period ◽  
Physical Contact ◽  
Major Road ◽  
North West ◽  
Major Shift ◽  
Megalithic Tombs ◽  
The Individual ◽  
Loire River

The extended lives of prehistoric monuments, whether or not they were interacted with once their initial phase of use had ended and how they were treated, can reveal valuable details about a culture. To interact with a place means that the action or influence is reciprocal. The individual, or group of individuals, is somehow affected by the physical contact they’ve had with the site, and the place in turn has been altered. Interactions are more than just reuse of a space. In fact, missing pieces of monuments’ biographies, evidence of subsequent use and treatment, are details that may tell us how a people dealt with their own past as well as that of others. The focus of this study is a region in which the biographies of a group of monuments appear to be intimately tied to clashing cultures during the Roman occupation: Morbihan, Brittany. Brittany is the westernmost province of France, roughly 30 kilometres north-west of the mouth of the Loire river, and extending over 200 kilometres westward into the Celtic Sea. The south-easternmost department of this province is Morbihan, which makes up over 6,800 square kilometres and centres on the Gulf of Morbihan, a few kilometres south of Vannes (Darioritum), the Roman-period civitas-capital of the Veneti. Darioritum was not only a port for commercial ships, but was also on the major road network connecting the Coriosolitae (Corseul), Osismes (Carhaix-Plouguer) and Namnetes (Nantes) civitates (Galliou and Jones 1991, 77, 81, 84). Evidence found in a thorough survey of Iron Age and Roman materials at megalithic tombs in Atlantic Europe revealed that Brittany is by far the region with the highest concentration of direct Roman period interactions, despite both the distribution of megalithic tombs across the peninsula and subsequent habitation patterns during the Iron Age and Roman periods (Scarre 2011, 29–33; Vejby 2012) . It also revealed that this activity is a major shift from the comparatively low number of megalithic tombs at which Iron Age materials have been found.

scholarly journals Past Hydrological Conditions in a Fluvial Valley: Records from C-O Isotope Signatures of Holocene Sediments in the Loire River (France)

Minerals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 400
Author(s):  
Philippe Négrel ◽  
Wolfram Kloppmann
Keyword(s):  
Clay Mineralogy ◽  
Local Environment ◽  
Late Glacial ◽  
Alluvial Plain ◽  
River Dynamics ◽  
Basin Scale ◽  
Isotope Record ◽  
Lacustrine Carbonate ◽  
Late Glacial And Holocene ◽  
Loire River

Multi-proxy indices (grainsize distribution, mineralogy, δ18O, δ13C) in sediments from a meander infill in the Middle Loire alluvial plain of central France are used to highlight some aspects of the basin evolution over the period from 0 to 10,000 years BP. During the Late-Glacial and Holocene period, the lacustrine carbonate substratum of the alluvial plain was incised by the Loire River, creating numerous oxbows and channels related to meander migration. The channel fills consist mainly of fine clayey sediments deposited during flooding of the river, with an almost total absence of coarse-clastic and sandy material, except in the basal part. The record of isotope ratio variations together with the distribution of particle sizes allows the evolution of the river dynamics to be constrained. The strong decrease of carbonate δ13C in the upper part of the record is ascribed to a progressive closure of the meander and, thus, an increasing control of the C-isotope signature by biological activity in a local environment. Variations in carbonate δ18O, rather, reflect paleohydrological/paleoclimatic changes at the basin scale. The isotope record of the river dynamics also agrees with the variations in clay mineralogy.

pH modelling by neural networks. Application of control and validation data series in the Middle Loire river

1999 ◽  
Vol 120 (2-3) ◽  
pp. 141-156 ◽  
Author(s):  
Florentina Moatar ◽  
Françoise Fessant ◽  
Alain Poirel
Keyword(s):  
Neural Networks ◽  
Data Series ◽  
Validation Data ◽  
Loire River

Longitudinal distribution of Trichoptera in the Loire River (France): simple ordination methods and community structure

Hydrobiologia ◽  
1996 ◽  
Vol 317 (3) ◽  
pp. 231-245 ◽  
Author(s):  
Bruno Guinand ◽  
Jeanne-Marie Ivol ◽  
Henri Tachet
Keyword(s):  
Community Structure ◽  
Longitudinal Distribution ◽  
Ordination Methods ◽  
Loire River
Sign in / Sign up

Export Citation Format

Share Document