Search for dissertations about: "topografiskt index"
Found 3 swedish dissertations containing the words topografiskt index.
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1. Large-scale Runoff Generation and Routing : Efficient Parameterisation using High-resolution Topography and Hydrography
Abstract : Water has always had a controlling influence on the earth’s evolution. Understanding and modelling the large-scale hydrological cycle is important for climate prediction and water-resources studies. READ MORE
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2. Plants go with the flow : predicting spatial distribution of plant species in the boreal forest
Abstract : The main objectives of this thesis are to study if a topographic wetness index (TWI) could be used as a tool for predicting the spatial distribution of vascular plant species richness in the boreal forest as well as to study congruence in species richness between vascular plants, liverworts, mosses and lichens. A wetness index ln(a/tanβ) based on topography was used to assign a specific TWI-value to every 20 x 20m grid in two 25 km2 boreal forest landscapes (differing in average soil pH) in northern Sweden. READ MORE
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3. Road disasters? Modeling and assessment of Swedish roads within crucial climate conditions
Abstract : An efficient maintenance of roads to ensure high accessibility and durability of the transport capacity requires an understanding of how the hydrological response depends on both the road and the landscape characteristics. New methods and data were used to identify and explain interaction between roads and surrounding environment and their influence on hydrologic responses both in watershed scale and road-section scale. READ MORE