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| Gendronneau, Maud; Haure, Joel; Jeanneret, Hélène; Le Merrer, Yoann; Lequette, Camille; Lomakine, Cédric; Martin, Jean-louis; Papin, Mathias; Ponthoreau, Catherine; Robin, Marc. |
| Ifremer, Nantes University and the township community "CAP Atlantique" have joined their skills to try to better understand how two key conchological areas in the shore economy of the Pays de la Loire area develop, especially since, environmentally, little is known about them, and because they face recurrent issues on the zootechnic level. This programme encompasses two main topics: assessment of environmental inputs (catchments areas input, contaminants evolution in the area, and impact on the conchological zones) and a study of the conchological culture (growth, mortality, analysis of the stocks). Concomitantly, operational tools (hydrodynamic and flux transfer models, databases, SIG) are developed to improve local management of the sites and information... |
| Tipo: Text |
Palavras-chave: Phytosanitary; Bacteria; SIG; Conchological stocks; Modelization; Catchment areas; Continental inputs; Pen Bé; Le Croisic; Phytosanitary; Bacteria; SIG; Conchological stocks; Modelization; Catchment areas; Continental inputs; Pen Bé; Le Croisic. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/rapport-1264.pdf |
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| Gendronneau, Maud; Haure, Joel; Jeanneret, Hélène; Le Merrer, Yoann; Lequette, Camille; Lomakine, Cédric; Martin, Jean-louis; Papin, Mathias; Ponthoreau, Catherine; Robin, Marc. |
| Ifremer, Nantes University and the township community "CAP Atlantique" have joined their skills to try to better understand how two key conchological areas in the shore economy of the Pays de la Loire area develop, especially since, environmentally, little is known about them, and because they face recurrent issues on the zootechnic level. This programme encompasses two main topics: assessment of environmental inputs (catchments areas input, contaminants evolution in the area, and impact on the conchological zones) and a study of the conchological culture (growth, mortality, analysis of the stocks). Concomitantly, operational tools (hydrodynamic and flux transfer models, databases, SIG) are developed to improve local management of the sites and information... |
| Tipo: Text |
Palavras-chave: Phytosanitary; Bacteria; SIG; Conchological stocks; Modelization; Catchment areas; Continental inputs; Pen B�; Le Croisic; Phytosanitary; Bacteria; SIG; Conchological stocks; Modelization; Catchment areas; Continental inputs; Pen B�; Le Croisic. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/00380/49129/49564.pdf |
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| Launeau, Patrick; Giraud, Manuel; Robin, Marc; Baltzer, Agnes. |
| In shoreline monitoring, only topo-bathymetric light detection and ranging (LiDAR) can map large corridors from aerial dunes to sandbanks in shallow water. Increasing turbidity masking the formation of 532 nm laser beam echoes on the sea bed makes this challenging. Full-waveform recording all the laser beam damping functions, a turbid water column can be seen as an accumulation of layers forming a single continuum and a distinction can be made between signals ending at the bottom down to a depth of 10 m. In practice full-waveforms are converted by laser beam tracing an image cube with a grid of 1-m-wide pixels and a 0.15 m range resolution storing the mean intensities returned along incident angle. The first derivative of a wide Gaussian filter serves to... |
| Tipo: Text |
Palavras-chave: Full-waveform; Airborne LiDAR; Bathymetry; Shoreline monitoring; Turbidity. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00476/58745/61270.pdf |
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