Search

Your search keyword '"Secretan, Yves"' showing total 125 results
Start Over Author "Secretan, Yves"
125 results on '"Secretan, Yves"'

3. Assessment of hydrokinetic energy resources downstream of hydropower plants in the Tietê River Basin, São Paulo State, Brazil

Author

Holanda, Patrícia da Silva, primary, Blanco, Claudio José Cavalcante, additional, Mesquita, André Luiz Amarante, additional, Alves, Cleidson da Silva, additional, Junior, Antonio Cesar Pinho Brasil, additional, Bittencourt, Marcio de Pinho, additional, Nunes, Maurício André, additional, and Secretan, Yves, additional

Published
2017
Full Text
View/download PDF

5. The Importance of Including Water Temperature Simulations in a 2D Fish Habitat Model for the St. Lawrence River

Author

Ouellet, Valerie, Secretan, Yves, Mingelbier, Marc, Morin, Jean, and Dugdale, Stephen

Subjects
water temperature, fish habitat, common carp, fungi, 2D model, fuzzy logic
Abstract

Extreme climatic conditions likely caused a massive fish mortality during the summer of 2001 in the St. Lawrence River. To corroborate this hypothesis, we used a physical habitat simulation approach incorporating hydraulic and water temperature models. Spawning Habitat Suitability Indices (HSI) for common carp (Cyprinus carpio) were developed using fuzzy logic and applied to the model outputs to estimate habitat weighted usable area during the event. The results revealed that areas suitable for common carp spawning (HSI > 0.3) were severely reduced by high water temperatures, which exceeded 28 °C during the mortality event. During the mortality event, the amount of suitable habitat was reduced to ≤200 ha/day, representing less than 15% of the maximum potential suitable habitat in the study reach. In addition, the availability of cooler habitats that could have been used as thermal refuges was also reduced. These results indicate that the high water temperature in spawning areas and reduced accessibility to thermal refuge habitats exposed the carp to substantial physiological and environmental stress. The high water temperatures were highly detrimental to the fish and eventually led to the observed mortalities. This study demonstrates the importance of including water temperature in habitat suitability models.

Published
2021

8. Transferabilite d'un modele pluie-debit pour la simulation de courbes de debits classes sur des petits bassins non jauges de I'Amazonie

Author

Blanco, Claudio J.C., Secretan, Yves, and Favre, Anne-Catherine

Subjects
Amazon River region -- Environmental aspects, Water-power -- Research -- Models -- Environmental aspects, Streamflow -- Models -- Environmental aspects -- Research, Runoff -- Management -- Models -- Research -- Environmental aspects, Engineering and manufacturing industries, Company business management, Management, Models, Research, Environmental aspects
Abstract

Resume : En Amazonie, les petits bassins versants ne disposent pas de donnees de debit, ce qui empeche l'etude de ces bassins, par exemple, pour des fins de production d'energie [...]

Published
2008

14. AVALIAÇÃO DE POTENCIAL HIDROCINÉTICO REMANESCENTE A JUSANTE DE UHES NA BACIA HIDROGRÁFICA DO RIO TIETÊ

Author

Bittencourt, Marcio de Pinho, Nunes, Maurício André, Holanda, Patrícia da Silva, Alves, Cleidson da Silva, Blanco, Claudio José Cavalcante, Mesquita, André Luiz Amarante, Junior, Antonio Cesar Pinho Brasil, and Secretan, Yves

Subjects
Turbinas Hidrocinéticas. Reservatórios de Jusante. Modelo de Saint-Venant
Abstract

A modelagem hidrodinâmica fluvial tem sido amplamente utilizada como uma ferramenta computacional para estimar o potencial hidrocinético de reservatórios de jusante de UHEs, ou seja, aproveitando a energia remanescente. O presente estudo avaliou o potencial de duas UHEs localizadas na bacia hidrográfica do rio Tietê, as UHEs de Ibitinga e Bariri, buscando demonstrar qual das duas possui maiores velocidades em seu reservatório de jusante, já que a velocidade varia ao cubo quando se está interessado em maiores potenciais hidrocinéticos. O escoamento foi simulado através do modelo Saint-Venant. Para tanto, foram levantados dados de topobatimetria para a elaboração do modelo de elevação do terreno; dados de substrato para obtenção do coeficiente de Manning, e dados de vazão e nível d’água para as condições de contorno. O modelo para as duas UHES foram validados e calibrados com dados observados de profundidade e velocidade. A partir desse modelo, velocidades e profundidades dos dois reservatórios de jusante foram simuladas para as vazões máxima, média, mínima observadas no período de 2010 a 2014. Os resultados de velocidade apontam um maior potencial hidrocinético para UHE Ibitinga, pois suas velocidades máximas, para as vazões simuladas variam entre 1,468m/s (vazão mínima) e 2,703 m/s (vazão máxima). Enquanto que as velocidades para UHE Bariri variam entre 0,61m/s e 2,05m/s.Palavras-chaves: Turbinas Hidrocinéticas, Reservatórios de Jusante, Modelo de Saint-Venant.

Published
2017

20. Compressible Viscous Flow Around a NACA-0012 Airfoil

Author

Secretan, Yves, Dhatt, Gouri, Nguyen, Dinh, Hirschel, Ernst Heinrich, editor, Morton, Keith William, editor, Murman, Earll M., editor, Pandolfi, Maurizio, editor, Rizzi, Arthur, editor, Roux, Bernard, editor, Bristeau, Marie Odile, editor, Glowinski, Roland, editor, Periaux, Jacques, editor, and Viviand, Henri, editor

Published
1987
Full Text
View/download PDF

40. The 1996 Lake Ha! Ha! breakout flood, Quebec: Test data for geomorphic flood routing methods

Author

National Taiwan University - Dept of Civil Engineering, UCL - SST/IMMC/GCE - Civil and environmental engineering, UCL - FSA/AUCE - Département d'architecture, d'urbanisme et de génie civil environnemental, Natural Resources Canada - Geological Survey Canada, University of Québec - INRS-ETE, Capart, Hervé, Spinewine, Benoît, Young, DL, Zech, Yves, Brooks, Gregory R, Leclerc, Michel, Secretan, Yves, National Taiwan University - Dept of Civil Engineering, UCL - SST/IMMC/GCE - Civil and environmental engineering, UCL - FSA/AUCE - Département d'architecture, d'urbanisme et de génie civil environnemental, Natural Resources Canada - Geological Survey Canada, University of Québec - INRS-ETE, Capart, Hervé, Spinewine, Benoît, Young, DL, Zech, Yves, Brooks, Gregory R, Leclerc, Michel, and Secretan, Yves

Abstract

This paper describes a set of field data suitable for the testing and comparative assessment of geomorphic flood routing methods. The data pertain to a particularly severe and unusually well-documented flood event: the Lake Ha! Ha! breakout flood of July 1996 in the Saguenay Region of Québec. In this event, heavy rains combined with the incision of a new lake outlet caused a major flood, which significantly reworked the downstream valley. Published and unpublished data from multiple sources are assembled and co-registered in a common frame of reference. These data include vertical and oblique air photos, hydrological records, surface geology information, and digital terrain models of the pre- and post-flood valley topography. The spatial coverage encompasses the drained lake as well as the full length of the downstream valley. To meet the respective needs of two- and one-dimensional approaches, the topography is sampled on a Cartesian mesh as well as interpolated along evenly-spaced cross-sections. The data set described in the paper is provided in digital form in the electronic supplement to this special issue

Published
2007

46. Système d'évaluation et de gestion des risques d'inondation en milieu fluvial (SEGRI): Rapport d'étape #2.

Author

Secretan, Yves, Larouche, Éric, Bonnifait, Laurent, Rahman, Khalid, Giasson, Maude, Solinski, Kevin, Caron, Cédric, Behaghel, Benjamin, Nadeau, Daniel, Lévesque, Stéphane, Martineau, Vincent, Labbé, Sébastien, Guérin, Dave, Secretan, Yves, Larouche, Éric, Bonnifait, Laurent, Rahman, Khalid, Giasson, Maude, Solinski, Kevin, Caron, Cédric, Behaghel, Benjamin, Nadeau, Daniel, Lévesque, Stéphane, Martineau, Vincent, Labbé, Sébastien, and Guérin, Dave

Published
2005

Catalog

Books, media, physical & digital resources
See catalog results