Sökning: "catchment geomorphology"
Visar resultat 1 - 5 av 7 avhandlingar innehållade orden catchment geomorphology.
1. Simulating the palaeorecord of northern European lakes using a coupled lake-catchment model
Sammanfattning : A coupled lake-catchment model was developed to examine the controls on lake-level changes in currently overflowing lakes during Holocene. The lake energy-balance is simulated as the one-dimensional vertical heat transfer by eddy diffusion and convective mixing. LÄS MER
2. Alpine lake sediment archives and catchment geomorphology : causal relationships and implications for paleoenvironmental reconstructions
Sammanfattning : Lake sediments are frequently used as archives of climate and environmental change. Minerogenic sediment variability in alpine lakes is often used to reconstruct past glacier and slope process activity. Alpine lake sediments can however have many different origins, which may induce errors in paleoenvironmental reconstructions. LÄS MER
3. The sensitivity of Swedish alpine lakes to hydro-climatic changes during the Late Holocene
Sammanfattning : The thesis objective is to use lake sediments to investigate the relationships between chironomids, as proxy for temperature, and δ18O and minerogenic in-wash, as precipitation proxies, in northern Sweden during the Late Holocene. Three lakes along a N–S transect in the Scandes were studied using biological, geochemical and physical sediment properties, together with numerical methods. LÄS MER
4. Hydrological aspects of the carbon balance in a boreal catchment: A model study
Sammanfattning : AbstractThe cycling of carbon in its gaseous, solid and dissolved forms is of central importance to ecosystem science, particularly, when the natural carbon cycle has been perturbed by human activity. Mathematical models are commonly used to asses and predict global and regional patterns of terrestrial carbon exchange. LÄS MER
5. The role of the hydrological cycle in forest ecosystems : flow path, nutrient cycling and water-carbon interaction
Sammanfattning : Forest ecosystems, covering over a third of land on the Earth, play a significant role in the global hydrological cycle, and influence soil erosion and climate change. However, the distribution, movements, quality of water, and hydrological processes in forested ecosystems are not well understood yet. LÄS MER
