Essays about: "Viskan"

Found 4 essays containing the word Viskan.

1. 1. Puckellax i Sverige : undersökning av potentiella spridningsvägar och eventuell påverkan av puckellax i svenskt vatten

   University essay from SLU/Dept. Of Aquatic Resources

   Author : Evelina Klavéus; [2023]
   Keywords : Puckellax; Oncorhynchus gorbuscha; främmande arter; inhemska arter; atlantlax; spridningsvägar; vandringshinder; effekter; ekologiska nischer;

   Abstract : I den här rapporten undersöktes 24 vattendrag på västkusten och fem vattendrag på sydkusten för att identifiera potentiella spridningsvägar för puckellax. Studien har utgått ifrån historiska puckellaxobservationer, definitiva och partiella vandringshinder, elfiske av atlantlax, medelvattenföring och area för att undersöka vattendragens potential som spridningsvägar. READ MORE

3. 2. Sediment Transport and Erosion in Viskan River, South Sweden

   University essay from Lunds universitet/Avdelningen för Teknisk vattenresurslära

   Author : Siyuan Wang; [2022]
   Keywords : HEC-RAS; cross section; erosion; sediment transport; deposition; Technology and Engineering;

   Abstract : This master thesis study presents the results of sediment transport analysis along Viskan, located in south Sweden. The main processes cover building a hydrodynamic model, studying parameters that define sediment transport, modelling sediment transport within the river, mapping out erosive stretches and comparing to observed eroded locations, and finally comparison of different transport functions how they influence the results. READ MORE

4. 3. GC-MS Screening and PCB Analysis of Sediment from Central Kattegat

   University essay from Örebro universitet/Institutionen för naturvetenskap och teknik

   Author : Emma Eriksson; [2015]
   Keywords : Paper mill; nuclear power plant; screening; GC-MS; PCB; APGC;

   Abstract : Five sediment samples were collected in Bua on the Swedish west coast, near two industries, a paper mill, and a nuclear power plant. The two industries use water in their processes and have long been associated with releases of different substances, such as PCBs, and other chlorinated compounds. READ MORE

5. 4. Mass movements as contamination carriers in surface water systems : Swedish experiences and risks

   University essay from Lunds universitet/Geologiska institutionen

   Author : Maria Åkesson; [2010]
   Keywords : contaminant mobilisation; surface water systems; mass movements; contaminant transport; natural hazard; Viskan; Klarälven; Ångermanälven; massrörelser; skred; ytvattensystem; föroreningsspridning; naturkatastrof; Earth and Environmental Sciences;

   Abstract : Recent studies indicate a widespread but largely overlooked hazard of contaminant mobilisation and transport in connection to mass movement activity into surface water systems in Sweden. Concerns are exacerbated by predicted effects of climate change, which suggest national increases in rates of precipitation, pore water pressures, run -off, erosion and mass movement occurrence. READ MORE