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Academic literature on the topic 'Signal anthropique'
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Journal articles on the topic "Signal anthropique"
Adeline, Karine R. M., Arnaud Le Bris, Fabien Coubard, Xavier Briottet, Nicolas Paparoditis, Françoise Viallefond, Nicolas Rivière, et al. "Description de la campagne aéroportée UMBRA : étude de l'impact anthropique sur les écosystèmes urbains et naturels avec des images THR multispectrales et hyperspectrales." Revue Française de Photogrammétrie et de Télédétection, no. 202 (April 16, 2014): 79–92. http://dx.doi.org/10.52638/rfpt.2013.53.
Full textVergniault, Christophe, Edouard Buchoud, Joséphine Boisson-Gaboriau, and Amélie Hallier. "Application des méthodes géophysiques pour le diagnostic de l’aléa cavités sur des ouvrages de grands linéaires, en contexte ferroviaire et hydraulique." Revue Française de Géotechnique, no. 172 (2022): 3. http://dx.doi.org/10.1051/geotech/2022006.
Full textHamelin, Louis-Edmond. "Dans la plaine laurentienne, la glace du sol aurait-elle contribué au façonnement des glissements et autres formes de relief en creux?" Cahiers de géographie du Québec 15, no. 36 (April 12, 2005): 439–65. http://dx.doi.org/10.7202/020981ar.
Full textDissertations / Theses on the topic "Signal anthropique"
Silvy, Yona. "Emergence des changements de température et de salinité dans l’océan intérieur en réponse au changement climatique : échelles de temps et mécanismes." Electronic Thesis or Diss., Sorbonne université, 2022. http://www.theses.fr/2022SORUS124.
Full textHuman-induced climate change is already affecting every inhabited region of the planet. Yet, over 90% of the excess heat associated with human activities has been absorbed by the ocean since the 1970s, which acts to largely damp atmospheric warming, but has large impacts on human societies and marine life. In this thesis, I explore when and where thermohaline changes in the ocean interior become large enough to be unambiguously set apart from internal variability and investigate their associated physical drivers, using ensembles of climate models and dedicated numerical experiments. We find that the climate signal in the upper ocean water-masses emerges between the late 20th century and the first decades of the 21st. The Southern Hemisphere mid-latitude Mode Waters emerge before their Northern Hemisphere counterparts. The associated warming at these timescales is mostly caused by the uptake of heat from the atmosphere, passively transported into the ocean interior. In the deeper parts of the ocean, circulation changes play a more important role in the emergence timescales of the climate signals. Increased buoyancy gain at the surface in the subpolar areas cause a slowdown in the meridional overturning circulation. This warms the subsurface and abyssal waters in the Southern Ocean as soon as the mid-20th century, adding up to the weaker passive uptake of heat, but counteracts it in the deep North Atlantic over the 21st, delaying the emergence. Although climate models miss some important aspects of the ocean response to climate change, they allow to shed light on the balance of processes at play, and suggest anthropogenic influence has already spread to large parts of the ocean
Pigeon, Grégoire. "Les échanges surface-atmosphere en zone urbaine - projets Clu-escompte et Capitoul." Toulouse 3, 2007. https://tel.archives-ouvertes.fr/tel-00186764.
Full textLe, Maire Pauline. "Caractérisation des anomalies magnétiques, approches théoriques et expérimentales : applications à des objets anthropiques et géologiques." Thesis, Strasbourg, 2017. http://www.theses.fr/2017STRAH006/document.
Full textMagnetic anomalies recorded outside bodies provide high quality information relative to buried structures. By using theoretical and experimental developments, this thesis aims to improve the characterization of the source inducing the magnetic anomaly. Firstly, some properties of three dimensional magnetic functions are presented, for example the presence of several maxima of the analytic signal operator (3D) is demonstrated. The Nabighian (1972) equation is generalized, which imply a new process to study potential method in two dimensions. These developments enable a new visualization of the anomaly in the complex field. The second approach is experimental. Synthetic cases are used to estimate the contribution of different configurations of magnetic data acquisitions at different altitudes to characterize the magnetic source. Theoretical and experimental developments are finally applied to two field examples: oceanic magnetic anomalies and archaeological magnetic prospection