Results 31 to 40 of about 81 (71)

Curative vs. preventive management of nitrogen transfers in rural areas: Lessons from the case of the Orgeval watershed (Seine River basin, France)

Journal of Environmental Management, 2014
The Orgeval watershed (104 km(2)) is a long-term experimental observatory and research site, representative of rural areas with intensive cereal farming of the temperate world. Since the past few years, we have been carrying out several studies on nitrate source, transformation and transfer of both surface and groundwaters in relation with land use and
Garnier, Josette, Billen, Gilles, Vilain, G., Benoit, Marie, Passy, Paul, Tallec, Gaëlle, Tournebize, Julien, Anglade, Juliette, Billy, Claire, Mercier, B., Ansart, Patrick, Azougui, Abdelkader, Sebilo, Mathieu, Kao, Cyril   +13 more
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1998 hydrometeorological yearbook of the Orgeval Experimental Catchment

, 1999
En 1998, le réseau de mesure de l'Orgeval s'est doté de deux nouvelles stations hydrométriques, l'une située près du hameau de Goins et la deuxième en forêt de Choqueuse. Deux nouveaux pluviographes ont été installés sur les anciens sites des pluviographes n°26 et 19 et ont donc repris leurs numéros.
Faucher, Virginie, Ansart, Patrick, Andréassian, Vazken, Normand, Michel, Rosique, Jean-Louis, Bleuse, Nicolas, Weisse, Anne, Ridet, Danielle, Derlet, Nadine, Stadmuller, Daniel   +9 more
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1997 hydrometeorological yearbook of the Orgeval Experimental Catchment

, 1998
L'annuaire graphique 1997 du BVRE de l'Orgeval présente de façon graphique l'ensemble des mesures réalisées en 1997 en différents points du bassin : débits (stations de Mélarchez, des Avenelles, du Theil et de la parcelle expérimentale de Boissy le Châtel); pluies (6 pluviographes); humidité du sol (méthode TDR); débits solides à Mélarchez;· nitrates à
Billaud, Frédéric, Andréassian, Vazken, Ansart, Patrick, Normand, Michel, Rosique, Jean-Louis, Quesney, Arnaud   +5 more
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Integrating Data into Hydrogeophysical Models to Unveil Fluxes and River Interactions: Insights from the Orgeval Critical Zone Observatory

ARPHA Conference Abstracts
Quantifying water and heat fluxes at the surface water (SW)–groundwater (GW) interface is crucial for ensuring sustainable water management and quality. However, direct field-based quantification remains challenging due to the dynamic nature of SW-GW interactions, which are influenced by poorly constrained boundary conditions and spatial hydrofacies ...
Rivière, Agnès, Radic, Nicolas, Gautier, Maxime, Clinquart, Vita, Bodet, Ludovic, Gesret, Alexandrine, Martin, Roland, Pasquet, Sylvain, Renard, Dider, Nespoulet, Romane, Baudin, Aurélien   +10 more
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René Pélissier. La naissance de la Guiné: Portugais et Africains en Sénégambie (1841-1936). Prefacio de Léopold Sédar Senghor. Pélisier: Orgeval, 1989, 486 pp.

Estudios de Asia y África, 1991
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Carlos Franco Liberato
doaj  

3D near-surface geophysics and geostatistics for heterogeneities characterization and water table monitoring on the Orgeval critical zone observatory

Groundwater fluxes and interacting zones between groundwater and surface water are crucial for understanding the water dynamics of the critical zone. Groundwater within the critical zone plays a significant role in the ecosystem, biodiversity, and water supply.
Gautier, Maxime, Pasquet, Sylvain, Radic, Nicolas, Renard, Dider, Martin, Roland, Gesret, Alexandrine, Nespoulet, Romane, Loget, Nicolas, Bodet, Ludovic, Rivière, Agnès   +9 more
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3D Near-Surface geophysics and geostatistics for heterogeneities characterization and water table monitoring on the Orgeval Critical Zone

Groundwater fluxes and interacting zones between groundwater and surface water are crucial for understanding the water dynamics of the critical zone. Groundwater within the critical zone plays a significant role in the ecosystem, biodiversity, and water supply.
Gautier, Maxime, Rivière, Agnès, Gesret, Alexandrine, Martin, Roland, Pasquet, Sylvain, Nespoulet, Romane, Renard, Didier, Bodet, Ludovic   +7 more
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Backscattering over bare soils: measurements and simulations using SIRC/XSAR and ERASME 1994 data over Orgeval

IGARSS '96. 1996 International Geoscience and Remote Sensing Symposium, 2002
During the 1994 SIRC/XSAR mission (Shuttle Imaging Radar C/X-Synthetic Aperture Radar), a part of the scientific activities was devoted to hydrology applications. In April 94, as the ground condition stayed very wet over the Orgeval watershed, France, the SAR imagery was used to assess the sensitivity of radar on the single problem of soil roughness ...
Zribi, Mehrez, Taconet, Odile, Le Hegarat Mascle, S., Vidal Madjar, Daniel, Emblanch, Christophe, Loumagne, C., Normand, Michel   +6 more
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Validation of a rough surface model based on fractal Brownian geometry with SIRC and ERASME data over Orgeval

IGARSS '98. Sensing and Managing the Environment. 1998 IEEE International Geoscience and Remote Sensing. Symposium Proceedings. (Cat. No.98CH36174), 1998
During the 1994 SIRC/XSAR mission, a part of the scientific activities was devoted to hydrology applications. To complement the shuttle radar data, the helicopter scatterometer ERASME was used on the Orgeval site. As a result, incidence angles ranging from 25 to 50 degrees are available in C- and X-band.
M. Zribi, V. Ciarletti, O. Taconet, J. Paille, C. Loumagne, M. Normand   +5 more
openaire   +1 more source

Validation of a Rough Surface Model Based on Fractional Brownian Geometry with SIRC and ERASME Radar Data over Orgeval

Remote Sensing of Environment, 2000
During the 1994 SIRC/XSAR mission, part of the scientific activities were devoted to hydrology applications. To complement the shuttle radar data, the helicopter scatterometer ERASME was used on the Orgeval site. As a result, incidence angles ranging from 25° to 57° are available in the C band.
Zribi, Mehrez, Ciarletti, Valérie, Taconet, Odile   +2 more
openaire   +3 more sources