High-resolution Thomson scattering system on the COMPASS tokamak provides electron temperature and density profiles in the central and edge plasma region. The spatial resolution in the edge plasma region is optimized for edge transport barrier studies. Formation of characteristic edge profiles (pedestals) is observed during high-confinement mode, i.e. the core electron temperature and density are raised up by the value of pedestal height. Both the electron and density pedestals are well-fitted by a modified hyperbolic tangent (mtanh) function, a five parameter model giving important parameters such as pedestal height and width, necessary for further analysis of the physics behind the transport barrier formation. A fitting technique of the full radial profiles of electron temperature, density and pressure during H-mode is also described. Using the fitting, electron temperature and density on top of pedestal are statistically processed to find a possible threshold for various H-mode regimes.

O enchimento de reservatórios hidrelétricos provoca impactos ambientais, interferindo nos ecossistemas e nos modos de vida das populações envolvidas, pois durante este processo a biomassa terrestre é decomposta lançando substâncias que se concentram nos volumes dos diferentes compartimentos do reservatório. Nestas condições, algumas regiões do reservatório passam por períodos em que os teores de oxigênio dissolvido e a concentração de matéria orgânica comprometem o equilíbrio da flora e fauna locais, afetando tanto a qualidade das águas como também os ecótonos vizinhos. Neste trabalho, será tratado o problema do transporte das concentrações das espécies constituintes, da temperatura e da turbulência, 2D e 2DH, durante o enchimento de compartimentos de reservatórios / The wadding of hidroelectric reservoirs provokes ambient impacts, intervening with the ecosystems and the ways of life of the involved populations, because during this process the terrestrial biomass is decomposed launching substances that stay concentrated in the volumes of the different compartments of the reservoir. In these conditions, some regions of the reservoir pass for periods where the texts of dissolved oxygen and the concentration of organic substance compromise the balance of the local flora and fauna, affecting as much the quality of waters as the neighboring ecotones. In this work, will be treated the problem of the transport of the concentrations of the constituent species, of the temperature and the turbulence, 2D and 2DH, during the wadding of compartments of reservoirs

O enchimento de reservatórios hidrelétricos provoca impactos ambientais, interferindo nos ecossistemas e nos modos de vida das populações envolvidas, pois durante este processo a biomassa terrestre é decomposta lançando substâncias que se concentram nos volumes dos diferentes compartimentos do reservatório. Nestas condições, algumas regiões do reservatório passam por períodos em que os teores de oxigênio dissolvido e a concentração de matéria orgânica comprometem o equilíbrio da flora e fauna locais, afetando tanto a qualidade das águas como também os ecótonos vizinhos. Neste trabalho, será tratado o problema do transporte das concentrações das espécies constituintes, da temperatura e da turbulência, 2D e 2DH, durante o enchimento de compartimentos de reservatórios / The wadding of hidroelectric reservoirs provokes ambient impacts, intervening with the ecosystems and the ways of life of the involved populations, because during this process the terrestrial biomass is decomposed launching substances that stay concentrated in the volumes of the different compartments of the reservoir. In these conditions, some regions of the reservoir pass for periods where the texts of dissolved oxygen and the concentration of organic substance compromise the balance of the local flora and fauna, affecting as much the quality of waters as the neighboring ecotones. In this work, will be treated the problem of the transport of the concentrations of the constituent species, of the temperature and the turbulence, 2D and 2DH, during the wadding of compartments of reservoirs