Sökning: "osäkerheter"
Visar resultat 11 - 15 av 142 avhandlingar innehållade ordet osäkerheter.
11. Observational Uncertainties in Water-Resources Modelling in Central America : Methods for Uncertainty Estimation and Model Evaluation
Sammanfattning : Knowledge about spatial and temporal variability of hydrological processes is central for sustainable water-resources management, and such knowledge is created from observational data. Hydrologic models are necessary for prediction for time periods and areas lacking data, but are affected by observational uncertainties. LÄS MER
12. Cost management for underground infrastructure projects : a case study on cost increase and its causes
Sammanfattning : Extensive investments in infrastructure for transportation are currently being carried out in Sweden. A substantial part consists of underground road- and railway projects. LÄS MER
13. Modelling, mapping and visualisation of flood inundation uncertainties
Sammanfattning : Flood maps showing extents of predicted flooding for a given extreme event have wide usage in all types of spatial planning tasks, as well as serving as information material for the public. However, the production processes that these maps undergo (including the different data, methods, models and decisions from the persons generating them), which include both Geographic Information Systems (GIS) and hydraulic modelling, affect the map’s content, and will be reflected in the final map. LÄS MER
14. Exploring the relevance of uncertainty in the life cycle assessment of forest products
Sammanfattning : The role of forest biomass as a replacement for fossil fuels and products is becoming increasingly prominent as a means to mitigate climate change. To guide a sustainable transition towards a forest-based bio-economy, it is important that advantages and disadvantages of forest products are assessed, to ensure that the products deliver environmental impact reduction. LÄS MER
15. Structural Uncertainties of Rock Fractures and their Effect on Flow and Tracer Transport
Sammanfattning : Att förstå flöde och transport av lösta ämnen genom sprickorna i berggrunden är viktigt för den långsiktiga säkerheten av ett geologiskt slutförvar av farligt avfall. I en diskret spricknätverksmodell byggs flödesvägarna upp av kedjor av flödesvägar genom de enskilda sprickorna i bergmassan. LÄS MER