Auswahl der wissenschaftlichen Literatur zum Thema „Planeur sous marin“
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Dissertationen zum Thema "Planeur sous marin"
Niewiadomska, Katarzyna. „Couplage physique-biogéochimie à différentes échelles spatiales et temporelles : le cas du courant Ligure étudié par un planeur sous-marin bio-optique“. Paris 6, 2008. http://www.theses.fr/2008PA066494.
Der volle Inhalt der QuelleBendinger, Arne. „Marées internes autour de la Nouvelle-Calédonie : dynamique, interactions tourbillon-marée interne et challenge pour le satellite SWOT“. Electronic Thesis or Diss., Toulouse 3, 2023. http://www.theses.fr/2023TOU30336.
Der volle Inhalt der QuelleThe oceanic energy cascade and the associated redistribution of energy from planetary scales to microscales are crucial to achieve climate equilibrium, yet they remain to be fully understood and quantified. Among the submesoscale flow regime which is characterized by equal contributions from rotational (balanced) and non-rotational (unbalanced) effects, it is internal tides (internal gravity waves at tidal frequency) which have been shown to represent a major energy transfer toward dissipative scales. The Surface Water Ocean Topography (SWOT) satellite mission will push forward global sea surface height (SSH) observations of fine-scale physics of combined balanced and unbalanced motions, and their interactions. Our understanding of these processes will ultimately depend on our ability to disentangle these two different dynamical flow regimes. This thesis aims to tackle SWOT SSH observability of balanced and unbalanced motions around New Caledonia, an area with pronounced internal tide activity alongside elevated level of mesoscale to submescale eddy variability located beneath two swaths of SWOT's fast-sampling phase during which SWOT orbited on a 1-day repeat cycle to collect high-frequency measurements. As an initial step, this thesis provides the first comprehensive description of internal-tide dynamics around New Caledonia, an internal generation hot spot in the southwestern tropical Pacific that has not yet been explored in the literature, based on a tailored regional high-resolution (1/60°) numerical modeling effort. Internal tide generation around New Caledonia is associated with the main bathymetric structures, i.e. continental slope, shelf breaks, small- and large-scale ridges, and seamounts, strongly dominated by the semidiurnal tide and low-vertical modes, with a strong signature in SSH. It is found to be a major source of tidal energy propagation toward the open ocean despite enhanced energy dissipation rates close to the generation sites. Mesoscale eddy variability is shown to be a potential source for the loss of tidal coherence (or tidal incoherence) due to eddy-internal tide interactions, either through the refraction of tidal beam energy propagation by mesoscale currents toward the open ocean or by mesoscale-eddy induced variations of barotropic-to-baroclinic energy conversion. Important insight is provided by in-situ observations of autonomous underwater gliders. They reveal the numerical model's realism of internal-tide dynamics while proving to be a suitable in-situ platform to infer internal tides, including SSH signature. SWOT SSH observability of balanced and unbalanced motions represent a challenge around New Caledonia as the internal tide dominates SSH variance at wavelengths similar to those of balanced motion at scales less than 200~km wavelength. Particular emphasis is given to the incoherent tide, which manifests in SSH at scales less than 100~km, while restricting the observability of mesoscale and submesoscale motions. An outlook is given on the impact of internal tides on the mesoscale to submesoscale circulation with promising routes for future work on cross-scale energy exchanges and the closure of the oceanic energy budget. Finally, the comprehensive description of internal-tide dynamics conducted in this thesis has important implications for the New Caledonia marine ecosystem, with the hope of paving the way for the island's efforts in the conservation of marine protected areas
Lenoir, Olivier. „Diffusion acoustique impulsionelle par des multicouches planes immergées : problème inverse : détection des résonances en présence d'absorbants“. Le Havre, 1990. http://www.theses.fr/1990LEHA0003.
Der volle Inhalt der QuelleHemming, Michael. „Implementation of novel sensors on underwater gliders“. Electronic Thesis or Diss., Sorbonne université, 2018. http://www.theses.fr/2018SORUS612.
Der volle Inhalt der QuelleAround a quarter of global anthropogenic carbon emissions have been absorbed by the ocean. Underwater gliders have been identified as important tools for gathering information related to climate change and ocean acidification processes. The REP14 - MED experiment involved the deployment of eleven gliders in the northwestern Mediterranean Sea; one of these had an experimental ion sensitive field effect transistor (ISFET) sensor attached. A comparison between pH observed by the glider and ship during the deployment indicated problems with the sensor accuracy and stability. Sunlight caused an apparent sensor pH decrease of up to 0.1 close to the surface around local noon. The pH corrected for drift, temperature, and pressure is presented with other ocean variables measured by the glider. The timing of the phytoplankton spring bloom in the northwestern Mediterranean Sea varies year-on-year. A glider with an ISFET pH sensor was deployed close to the BOUSSOLE mooring site. This deployment offered a second opportunity to test the ISFET sensor with improvements. Similarly to during the REP14 - MED experiment, ISFET pH measurements were corrected for drift, temperature and pressure effects. Measurements at the BOUSSOLE mooring indicated that the spring bloom started around March 19. Mean net community production (N) rates were estimated from the glider dissolved oxygen concentrations, as well as glider and buoy dissolved inorganic carbon concentrations derived using other parameters. N ranged between -82 ± 317 mmol m−2 d−1 and 460 ± 870 mmol m−2 d−1. Horizontal spatial scales of variability highlight physical and biogeochemical processes, and are useful for designing ocean observing systems. Spatial scales of variability were estimated from semivariograms using glider measurements. Spatial scales of variability were mostly small at depths affected by biology, and large at depths affected by large-scale processes, such as weather, although this was not true in every case. Some direction dependency was found, which may be related to ocean currents, or the density of glider meridional measurements
Bücher zum Thema "Planeur sous marin"
Evener, Vincent. Enemies of the Cross. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780190073183.001.0001.
Der volle Inhalt der QuelleBuchteile zum Thema "Planeur sous marin"
Hardin, Garrett. „Summary: Can Our Ostriches Find the Will?“ In The Ostrich Factor, 141–54. Oxford University PressNew York, NY, 1999. http://dx.doi.org/10.1093/oso/9780195122749.003.0018.
Der volle Inhalt der QuelleKonferenzberichte zum Thema "Planeur sous marin"
Ceresole, E., P. Fanghella und C. Galletti. „Assur’s Groups, AKCs, Basic Trusses, SOCs, etc.: Modular Kinematics of Planar Linkages“. In ASME 1996 Design Engineering Technical Conferences and Computers in Engineering Conference. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-detc/mech-1027.
Der volle Inhalt der QuelleYang, Ting-Li, Fang-Hua Yao und Ming Zhang. „A Comparative Study on Some Modular Approaches for Analysis and Synthesis of Planar Linkages: Part I — Modular Structural Analysis and Modular Kinemaic Analysis“. In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/mech-5920.
Der volle Inhalt der QuelleYang, Ting-Li, Fang-Hua Yao und Ming Zhang. „A Comparative Study on Some Modular Approaches for Analysis and Synthesis of Planar Linkages: Part II — Modular Dynamic Analysis, Modular Structural Synthesis and Modular Kinematic Synthesis“. In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/mech-6058.
Der volle Inhalt der QuelleIguma, Ayaka, und Masashi Yamada. „Correspondence Analysis on the Production Staff for the Anime Series Nintama Rantaro“. In 13th International Conference on Applied Human Factors and Ergonomics (AHFE 2022). AHFE International, 2022. http://dx.doi.org/10.54941/ahfe1001768.
Der volle Inhalt der QuelleVural, Deren, Iain M. Martin, Martin Dunstan und Manual Sanchez-Gestido. „Real-time Rasterization Simulation of Thermal Infrared images for spacecraft applications“. In ESA 12th International Conference on Guidance Navigation and Control and 9th International Conference on Astrodynamics Tools and Techniques. ESA, 2023. http://dx.doi.org/10.5270/esa-gnc-icatt-2023-147.
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