Sökning: "Pre-Alpine catchment"

Hittade 4 uppsatser innehållade orden Pre-Alpine catchment.

1. 1. Dynamic streams in a pre-alpine catchment

   Master-uppsats, Göteborgs universitet/Institutionen för geovetenskaper

   Författare :Andreas Sølberg; [2021-07-12]
   Nyckelord :Temporary streams; Streamflow; Stream mapping; Pre-Alpine catchment; Stream dynamics; Topographic wetness index; Upslope accumulated area;

   Sammanfattning : This thesis aims to investigate the factors controlling the dynamics of temporary streams, i.e., streams that do not flow throughout the year. Temporary stream hydrology is a relative unexplored scientific field. LÄS MER

3. 2. Dynamics of streamflow and stream chemistry in a Swiss pre-Alpine headwater catchment : A fine scale investigation of flow occurrence and electrical conductivity in the temporary streams in the lower Studibach catchment

   Master-uppsats, Uppsala universitet/Luft-, vatten- och landskapslära

   Författare :Elise Baumann; Hanna Berglund; [2021]
   Nyckelord :Temporary Streams; Pre-Alpine Catchment; Streamflow; Stream Chemistry; Fine Scale Investigation; Electrical-conductivity; Stream Mapping; Temporära bäckar; Pre-Alpina avrinningsområden; Bäckflöden; Vattenkemi; Finskalig undersökning; Elektrisk konduktivitet; Bäck-kartering;

   Sammanfattning : Temporary streams and their dynamics have often been largely overseen in hydrological research and there is relatively little knowledge about how the occurrence of flow in these streams varies temporally and spatially. Temporary streams are important from a hydro- logical perspective because they affect water quantity and quality in downstream peren- nial reaches, and from an ecological perspective because they provide habitat to unique species. LÄS MER

4. 3. The Origin of Streams : Stream cartography in Swiss pre alpine headwater

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Oskar Sjöberg; [2016]
   Nyckelord :Temporary stream; Stream cartography; Drainage density; Hydrological connection; Topographic wetness index; Upslope accumulated area; Stream head; Headwater catchment;

   Sammanfattning : Temporary streams have received undeservedly little scientific attention and as a result their role in hydrological, biogeochemical and ecological processes is not yet fully understood. The ultimate goal of the research was to gain a better understanding of the temporary stream network and the processes that control it and determine how the active and connected stream length change with catchment wetness conditions to find simple methods to map seasonal and event-based changes in temporary flowing stream networks. LÄS MER

5. 4. Modelling of carbamazepine and diclofenac in a river network : photolytic degradation in Swiss rivers

   Master-uppsats, SLU/Dept. of Aquatic Sciences and Assessment

   Författare :Klaus Vochezer; [2010]
   Nyckelord :micropollutants; pharmaceuticals; carbamazepine; diclofenac; direct photolysis; photolytic degradation; stream network;

   Sammanfattning : Micropollutants from urban or agricultural sources, for example pharmaceuticals or pesticides, are facing increasing public awareness. In the last years, many studies reported on the occurrence of micropollutions in different water samples, including drinking waters. LÄS MER