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Modeling of Solar Radiation Management : A Comparison of Simulations using Reduced Solar Constant and Stratospheric AerosolsSirisha, K January 2014 (has links) (PDF)
The climatic effects of Solar Radiation Management (SRM) geoengineering have been often modeled by simply reducing the solar constant. This is most likely valid only for space sunshades and not for atmosphere and surface based SRM methods. In this thesis, a global climate model is used to test if the climate response to SRM by stratospheric aerosols and uniform solar constant reduction are similar. Our analysis shows that when global mean warming from a doubling of CO2 is nearly cancelled by both these methods, they are similar when important surface and tropospheric climate variables are considered. However, a difference of 1K in the global mean stratospheric (61-9.8 hPa) temperature is simulated between the two SRM methods. Further, while the global mean surface diffuse radiation increases by about 15- 20% and direct radiation decreases by about 8% in the case of sulphate aerosol SRM method, both direct and diffuse radiation decrease by similar fractional amounts (~ -1.5%) when solar constant is reduced. When CO2 fertilization effects from elevated CO2 concentration levels are removed, the contribution from shaded leaves to gross primary productivity (GPP) increases by 6 % in aerosol SRM because of increased diffuse light. However, this increase is almost offset by a 7% decline in sunlit contribution due to reduced direct light. Overall both the SRM simulations show similar decrease in GPP (~ 1%) and NPP (~ 0.7%). Based on our results we conclude that the climate states produced by a reduction in solar constant and addition of aerosols into the stratosphere can be considered almost similar except for two important aspects: stratospheric temperature change and the consequent implications for the dynamics and the chemistry of the stratosphere and the partitioning of direct versus diffuse radiation reaching the surface. Further, the likely dependence of global hydrological cycle response on aerosol particle size and the latitudinal and height distribution of aerosols is discussed.
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Stavebně technologický projekt administrativní budovy ve Zlíně-Lukové / Construction technological project of administration building in Zlín-LukováVyoral, Martin January 2015 (has links)
In this thesis is solved by building technological project of an office building in Zlin Januška Compressors - Lukov focusing on selected technological stage. Namely, the implementation of large wooden roof trusses and performing thermal insulation composite system. For these technological steps are processing all documents that are necessary for their implementation. It's technical report on construction technology project, time and financial plan of the building, study the implementation of major technological stages of the main building structure, design of the main building mechanisms, the project site equipment with appropriate drawings and calculations of the costs of site, technical regulations implementing the activities related to monitoring and test plans.
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